The present invention relates to a fabric and fiber
product having durable moisture absorbency in addition to
flame retardance.
BACKGROUND ART
[0002]
Fabric containing aramid fibers has conventionally
been used in fire-fighting clothing and work clothes due
to the superior flame retardance thereof. In addition,
fire-fighting clothing and work clothes had the problem
of excessive perspiration since there are many
opportunities for use in environments at high temperature
and humidity. However, since priority was placed on
20 protecting firefighters and workers from fire and the
like, little consideration has been given to wear comfort
of fabric.
[0003]
On the other hand, a fabric that efficiently absorbs
25 perspiration has been proposed for use as a fabric that
enhances wear comfort when perspiring (see, for example,
Patent Document 1).
[0004]
However, a fabric has yet to be proposed that
30 demonstrates durable moisture absorbency in addition to
flame retardance.
Prior Art Documents
35 Patent Documents
[0005]
Patent Document 1: Japanese Unexamined Patent
!i
- 2 -
Publication No. 2011-94285
DISCLOSURE OF THE INVENTION
5 Problems to be Solved by the Invention
[0006]
With the foregoing in view, an object of the present
invention is to provide a fabric and textile product that
has durable moisture absorbency in addition to flame
10 retardance.
Means for Solving the Problems
[0007]
As a result of conducting extensive studies to solve
15 the aforementioned problems, the inventors of the present
invention found that, by imparting a hydrophilizing agent
to a fabric containing aramid fibers, a fabric can be
obtained that has durable moisture absorbency in addition
to flame retardance, and after conducting additional
20 extensive studies, arrived at the present invention.
[0008]
Thus, according to the present invention, a "fabric
comprising aramid fibers, wherein the fabric is imparted
with a hydrophilizing agent'' is provided.
25 [0009]
At that time, the aforementioned aramid fibers
preferably comprise 30% by weight to 97% by weight of
meta-aramid fibers and 3% by weight to 70% by weight of
para-aramid fibers.
30 [0010]
In addition, the degree of crystallization of the
aforementioned meta-type wholly aromatic polyamide fibers
is preferably within the range of 15% to 25%. In
addition, the meta-type wholly aromatic polyamide that
35 forms the aforementioned meta-type wholly aromatic
polyamide fibers is preferably a meta-type wholly
aromatic polyamide obtained by copolymerizing an aromatic
- 3 -
diamine component or an aromatic dicarboxylic acid halide
component in an aromatic polyamide backbone containing a
repeating structural unit represented by the following
formula (1), the aromatic diamine component or the
5 aromatic dicarboxylic acid halide component having
different primary const~tuent units in the repeating
structures thereof, such that it is copolymerized as a
third component at 1 mol% to 10 mol% based on the total
amount of repeating structural units of the aromatic
10 polyamide.
[0011]
(NH-A r 1-NH-CO-A r 1-CO) ( 1)
Here, Arl represents a divalent aromatic group having a
linking group in the meta coordination or a coordination
15 other than the parallel axis.
[0012]
At that time, the aromatic diamine serving as a
third component is preferably represented by formula (2)
or formula (3), and the aromatic dicarboxylic acid halide
20 is preferably represented by formula (4) or formula (5).
[0013]
25
H2N-Ar2-NH2
H2N-Ar2-Y-Ar2-NH2
XOC-Ar3-COX
XOC-Ar3-Y-Ar3-COX
( 2)
( 3)
( 4)
( 5)
Here, Ar2 represents a divalent aromatic group different
from Arl, Ar3 represents a divalent aromatic group
different from Arl, Y represents at least one type of
atom or functional group selected from the group
30 consisting of an oxygen atom, sulfur atom and alkylene
group, and X represents a halogen atom.
[0014]
In addition, the residual amount of solvent in the
aforementioned meta-type aromatic polyamide fibers is
35 preferably 0.1% by weight or less. In addition, the
fabric preferably further contains electrically
- 4 -
conductive fibers. In addition, the fabric preferably
further contains polyester fibers. In addition, the
aforementioned polyester fibers are preferably polyester
fibers containing a flame retardant. In addition, the
5 aforementioned aramid fibers and/or the aforementioned
electrically conductive fibers and/or the aforementioned
polyester fibers are preferably contained in the fabric
as spun yarn. In addition, the aforementioned aramid
fibers and the aforementioned polyester fibers are
10 preferably contained in the fabric as blended yarn. In
addition, the fabric preferably has a double weave
structure. In addition, the aforementioned
hydrophilizing agent is preferably polyethylene glycol
diacrylate, a derivative of polyethylene glycol
15 diacrylate, polyethylene terephthalate-polyethylene
glycol copolymer, or water-soluble polyurethane. In
addition, the basis weight of the fabric is preferably
within the range of 130 g/m2 to 260 g/m2
• In addition,
the fabric is preferably subjected to dyeing. In
20 addition, afterflame obtained by measuring flammability
as defined in Method A-4 of JIS L1091-1992 is preferably
2.0 seconds or less. In addition, moisture absorption
performance as defined in AATCC79 is preferably 10
seconds or less. In addition, water absorption
25 performance as defined in AATCC79 after 20 cycles of
laundering as defined in I£06339-2012 (6N-F) is
preferably 30 seconds or less.
[0015]
In addition, according to the present invention, a
30 textile product that uses the aforementioned fabric is
provided that is selected from the group consisting of
protective clothing, fire-protective clothing, firefighting
clothing, rescue clothing, workwear, police
uniforms, self defense forces uniforms and military
35 clothing.
Effects of the Invention
li
li [f li
5
10
- 5 -
[0016]
According to the present invention, a fabric and
textile product are obtained that have durable moisture
absorbency in addition to flame retardance.
BRIEF DESCRIPTION OF THE DRAWINGS
[0017]
FIG. 1 is a weave structural diagram used in Example
3.
MODE FOR CARRYING OOT THE INVENTION
[0018]
The following provides a detailed explanation of
embodiments of the present invention.
15 [0019]
First, the fabric of the present contains aramid
fibers (wholly aromatic polyamid fibers). Adequate flame
retardance is unable to be obtained in the case aramid
fibers are not contained in the fabric, thereby making
20 this undesirable.
[0020]
The aramid fibers may be meta-aramid fibers or paraaramid
fibers.
[0021]
25 The meta-aramid fibers may be of the spun-dyed type
or dyed type. The meta-aramid fibers may also be of the
flame retardant type that contains a flame retardant.
Moreover, the amount of residual solvent in the metaaramid
fibers is preferably as low as possible. Since a
30 lower amount of residual solvent enables the fibers per
se to be self-extinguishable, the amount of residual
solvent is preferably 1% by weight or less, and more
preferably 0.3% by weight or less.
35
[0022]
The meta-aramid fibers are obtained by linking
aromatic rings composing the main backbone with amide
bonds at meta-position, and refer to those in which 85
l·i
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' i!
' !!
- 6 -
mol% or more of all repeating units of the polymer are
meta-phenylene isophthalamide units. Poly(meta-phenylene
isophthalamide) homopolymer is particularly preferable.
Examples of a third component able to copolymerize at 15
5 mol% or less, and preferably 5 mol% or less, of all
repeating units are indicated to follow. Namely,
examples include diamine components in the form of an
aromatic diamine such as para-phenylenediamine, 3,4'diaminodiphenyl
ether, 4,4'-diaminodiphenyl ether, para-
10 xylylenediamine, biphenylenediamine, 3,3'dichlorobenzidine,
3,3'-dimethylbenzidine, 3,4'diaminodiphenylmethane,
4,4'-diaminodiphenylmethane or
1,5-naphthlanediamine. In addition, examples of the acid
component include aromatic dicarboxylic acids such as
15 terephthalic acid, naphthalene-2,6-dicarboxylic acid or
naphthalene-2,7-dicarboxylic acid. In addition, a
portion of the hydrogen atoms of the aromatic rings of
these aromatic diamines and aromatic dicarboxylic acids
may be substituted with halogen atoms or alkyl groups
20 such as a methyl group. In the case 20% or more of all
polymer ends are capped by a monovalent carboxylic acid
component or monovalent diamine such as aniline, the
decrease in fiber strength even after storing for a long
period of time at high temperatures in particular is
25 small, thereby making this preferable. The meta-aramid
fibers may also contain a pigment such as carbon black or
a flame retardant, ultraviolet absorber or other
functional agent in order to retain functional
properties. Furthermore, examples of commercially
30 available products of meta-aramid fibers include Conex®
and Nomex®.
[0023]
This meta-type wholly aromatic polyamide can be
produced according to conventionally known interfacial
35 polymerization methods, and that having a degree of
polymerization within the range of 1.3 dl/g to 1.9 dl/g,
in terms of intrinsic viscosity (I.V.) as measured in an
- 7 -
N-methyl-2-pyrrolidone solution having a concentration of
0.5 g/100 ml, is used preferably.
[0024]
The aforementioned meta-type wholly aromatic
5 polyamide may also contain an alkylbenzenesulfonate onium
salt. Preferable examples of alkylbenzenesulfonate onium
salts include compounds such as tetrabutylphosphonium
hexylbenzenesulfonate, tributylbenzylphosphonium
hexylbenzensulfonate, tetraphenylphosphonium
10 dodecylbenzenesulfonate, tributyltetradecylphosphonium
dodecylbenzenesulfonate, tetrabutylphosphonium
dodecylbenzenesulfonate or tributylbenzylammonium
dodecylenzenesulfonate. Among these,
tetrabutylphosphonium dodecylbenzenesulfonate and
15 tributylbenzylammonium dodecylbenzenesulfonate are
particularly preferable since they are highly soluble in
N-methyl-2-pyrrolidone and have favorable thermal
stability.
20
[0025]
The content ratio of the aforementioned
alkylbenzenesulfonate onium salt is preferably 2.5 mol%
or more, and more preferably within the range of 3.0 mol%
to 7.0 mol%, based on the amount of poly(m-phenylene
isophthalamide) in order to obtain the effect of
25 improving adequate dyeability.
[0026]
In addition, mixing the poly(m-phenylene
isophthalamide) in a solvent and dissolving therein
followed by dissolving the alkylbenzenesulfonate onium
30 salt in the solvent may be used as an example of method
for mixing the poly(m-phenylene isophthalamide) and
alkylbenzenesulfonate onium salt. A dope obtained in
this manner is then formed into fibers according to a
conventionally known method.
35 [0027]
The polymer used for the meta-type wholly aromatic
polyamide fibers can also be obtained by polymerizing an
- 8 -
aromatic diamine component or an aromatic dicarboxylic
acid halide component in an aromatic polyamide backbone
containing a repeating structural unit represented by the
following formula (1), the aromatic diamine component and
5 the dicarboxylic acid halide component having different
primary constituent units of the repeating structures
thereof, such that it is copolymerized as a third
component at 1 mol% to 10 mol% based on the total amount
of repeating structural units of the aromatic polyamide.
10 [0028]
(NH-A r 1-NH-CO-A r 1-CO) (1)
Here, Arl represents a divalent aromatic group having a
linking group in the meta coordination or in a
coordination other than the parallel axis.
15 [0029]
In addition, the aromatic diamine or aromatic
dicarboxylic acid halide component can also be
copolymerized as a third component. Specific examples of
aromatic diamines represented by formula (2) or formula
20 (3) include p-phenylenediamine, chlorophenylenediamine,
methylphenylenediamine, acetylphenylenediamine,
aminoanisidine, benzidine, bis(aminophenyl)ether,
bis(aminophenyl)sulfone, diaminobenzanilide and
diaminoazobenzene. Specific examples of aromatic
25 dicarboxylic acid dichlorides represented by formula (4)
or formula (5) include terephthalic acid chloride, 1,4-
naphthalene dicarboxylic acid chloride, 2,6-naphthalene
dicarboxylic acid chloride, 4,4'-biphenyldicarboxylic
acid chloride, 5-chloroisophthalic acid chloride, 5-
30 methoxyisophthalic acid chloride and
bis(chlorocarbonylphenyl)ether.
[0030]
35
H2N-Ar2-NH2
H2N-Ar2-Y-Ar2-NH2
XOC-Ar3-COX
XOC-Ar3-Y-Ar3-COX
( 2)
( 3)
(4)
( 5)
- 9 -
Here, Ar2 represents a divalent aromatic group different
from Arl, Ar3 represents a divalent aromatic group
different from Arl, Y represents at least one type of
atom or functional group selected from the group
5 consisting of an oxygen atom, sulfur atom and alkylene
group, and X represents a halogen atom.
[0031]
In addition, the degree of crystallization of the
meta-type wholly aromatic polyamide fibers is preferably
10 5% to 35% from the viewpoints of ensuring favorable dye
exhaustion and facilitating adjustment to a target color
with a smaller amount of dye or under weaker dyeing
conditions. Moreover, the degree of crystallization is
'more preferably 15% to 25% from the viewpoints of making
15 it more difficult for a dye to become unevenly
distributed on a surface, greater resistance to
discoloration and fading, and being able to ensure a
level of dimensional stability required for practical
use.
20 [0032]
In addition, the amount of residual solvent in the
meta-type wholly aromatic polyamide fibers is preferably
0.1% by weight or less from the viewpoints of not
impairing the superior flame retardation performance of
25 meta-type wholly aromatic polyamide fibers, making it
more difficult for a dye to become unevenly distributed
on a surface, and greater resistance to discoloration and
fading.
30
[0033]
The aforementioned meta-type wholly aromatic
polyamide fibers can be produced by the following method,
and the degree of crystallization and amount of residual
solvent in particular can be made to be within the
aforementioned ranges by using the method to be
35 subsequently described.
[0034]
There are no particular limitations on the
I
!
5
- 10 -
polymerization method of the meta-type wholly aromatic
polyamide polymer, and for example, a solution
polymerization method or interfacial polymerization
method described in Japanese Examined Patent Publication
No. 335-14399, U.S. Patent No. 3360595 or Japanese
Examined Patent Publication No. 847-10863 may be used.
[0035]
Although there are no particular limitations on the
spinning solution, an amide-based solvent solution
10 containing an aromatic co-polyamide polymer obtained
using the aforementioned solution polymerization or
interfacial polymerization, or that obtained by isolating
the polymer from the aforementioned polymerization
solution and dissolving in an amide-based solution, may
15 also be used.
[0036]
Here, although examples of amide-based solvents used
include N,N-dimethylformamide, N,N-dimethylacetoamide, Nmethyl-
2-pyorrolidone (NMP) and dimethylsulfoxide, N,N-
20 dimethylacetoamide is particularly preferable.
[0037]
The aforementioned copolymerized aromatic polyamide
polymer solution obtained in the manner described above
is stabilized by further containing an alkaline inetal
25 salt or alkaline earth metal salt, enabling it to be used
at a higher concentration and lower temperature, thereby
making this preferable. An alkaline metal salt and
alkaline earth metal salt are preferably contained at 1%
by weight or less, and more preferably 0.1% by weight or
30 less, based on the total weight of the polymer solution.
[0038]
In a spinning and coagulation step, the spinning
solution obtained in the manner described above (metatype
wholly aromatic polyamide polymer solution) is
35 coagulated by spinning into a coagulating liquid.
[0039]
There are no particular limitations on the spinning
,!,;
- 11 -
apparatus and a conventionally known wet spinning
apparatus can be used. In addition, there is also no
particular need to limit the number, arrangement or shape
of the spinning holes of the spinneret provided they
5 permit stable wet spinning, and for example, a multi-hole
spinneret for spun rayon yarn having 1000 to 30,000
spinning holes and a spinning hole diameter of 0.05 mm to
0.2 mm may be used.
10
15
[0040]
In addition, the temperature of the spinning
solution (meta-type wholly aromatic polyamide polymer
solution) when spun out from the spinneret is preferably
within the range of 20°C to 90°C.
[0041]
An amide-based solution substantially free of
inorganic salt, and preferably an aqueous solution having
an NMP concentration of 45% by weight to 60% by weight,
is used for the coagulating liquid used to obtain fibers
within a liquid temperature range of l0°C to 50°C. If the
20 concentration of amide-based solution, and preferably
NMP, is less than 45% by weight, a thick-skinned
structure results, resulting in the risk of a decrease in
cleaning efficiency in the washing step and difficulty in
reducing the residual amount of solvent in the fibers.
25 On the other hand, in the case the concentration of the
amide-based solvent, and preferably NMP, exceeds 60% by
weight, coagulation is unable to proceed uniformly to the
interior of the fibers, thereby again resulting in the
risk of difficulty in reducing the amount of residual
30 solvent in the fibers. Furthermore, the amount of time
the fibers are immersed in the coagulation bath is
preferably within the range of 0.1 seconds to 30 seconds.
[0042]
Continuing, the fibers are drawn at a draw ratio of
35 3 to 4 in an amide-based solution, and preferably an
aqueous solution having an NMP concentration of 45% by
weight to 60% by weight, in a plastic drawing bath in
- 12 -
which the temperature of the bath liquid has been made to
be within the range of l0°C to 50°C. Following drawing,
the fibers are adequately washed by passing through an
aqueous solution at l0°C to 30°C having an NMP
5 concentration of 20% by weight to 40% by weight and then
th:r:ough a hot water bath at a temperature of 50°C to 70°C.
[0043]
The washed fibers are then subjected to dry heat
treatment at a temperature of 270°C to 290°C to obtain
10 meta-type wholly aromatic aramid fibers that satisfy the
aforementioned ranges for degree of crystallization and
amount of residual solvent.
[0044]
In addition, the para-aramid fibers are fibers
15 composed of a polyamide having aromatic rings in the main
chain thereof. This polyamide may be poly(p-phenylene
terephthalamide) (PPTA) or the copolymer type, co-poly-pphenylene-
3,4'-oxydiphenylene terephthalamide (PPODPA).
Furthermore, examples of commercially available products
20 of this para-aramid fiber include Technora®, Kevlar® and
Twaron®.
[0045]
If meta-aramid fibers are contained at 30% by weight
to 97% by weight and para-aramid fibers are contained at
25 3% by weight to 70% by weight in particular, shrinkage of
the fabric during combustion is reduced and it becomes
difficult for holes to form therein, thereby making this
preferable.
30
[0046]
The fabric of the present invention may be composed
only of aramid fibers as previously described, or may
contain fibers other than aramid fibers (other fibers)
[0047]
For example, if electrically conductive fibers are
35 contained in the fabric, fires caused by the generation
of static electricity can be suppressed due to the
- 13 -
synergistic effect with a hydrophilizing agent imparted
to the fabric, thereby making this preferable.
[0048]
The electrically conductive fibers are preferably
5 fibers containing at least one of carbon black,
electrically conductive titanium oxide, electrically
conductive whiskers and carbon nanotubes for the
conductor of the electrically conductive portion of the
electrically conductive fibers.
10 [0049]
The form of the electrically conductive fibers may
be that of a structure in which all of the fibers are
composed of electrically conductive portions, or that in
which non-conducting portions and electrically conductive
15 portions have a cross-sectional shape in the manner of a
core-and-sheath, sandwich or eccentric shape. There are
no particular limitations on the resin used to form the
electrically conductive portions and non-conducting
portions provided it allows the formation of fibers.
20 Specific examples thereof include Nylon resins such as
Nylon 6, Nylon 11, Nylon 12 or Nylon 66. In addition,
examples of polyester resins include polyethylene
terephthalate, polytrimethylene terephthalate,
polybutylene terephthalate, polyethylene naphthalate,
25 polycyclohexane terephthalate, copolymers thereof, and
those in which a portion of the acid component
(terephthalic acid) thereof has been substituted with
isophthalic acid.
30
35
[0050]
Examples of commercially available electrically
conductive fibers include Metalian (trade name, Teijin
Ltd.), Megana (trade name, Unitika Ltd.), Luana (Toray
Corp.) and Kuracarbo (Kuraray Co., Ltd.).
[0051]
In addition, fibers such as polyester fibers, nylon
fibers, acrylic fibers, acrylate-based fibers, flameretardant
rayon fibers or flame-retardant vinylon fibers
- 14 -
may also be contained in the fabric. Containing
polyester fibers in the fabric further improves moisture
absorption performance in particular, thereby making this
preferable.
5 [0052]
The aforementioned polyester fibers are fibers
containing polyester as a component thereof. The
polyester is a polyester having terephthalic acid as the
main dicarboxylic acid component and having at least one
10 type of glycol, and preferably ·at least one type of
alkylene glycol selected from among ethylene glycol,
trimethylene glycol or tetramethylene glycol and the
like, as the main glycol component. The polyester may be
modified by copolymerizing and/or blending a third
15 component as necessary. The polyester may also be a
material-recycled or chemically-recycled polyester, or
polyethylene terephthalate obtained by using a monomer
component obtained by using biomass, namely a biological
substance, as raw material. Moreover, the polyester may
20 be obtained by using a catalyst containing a specific
phosphorous compound and titanium compound as described
in Japanese Unexamined Patent Publication No. 2004-270097
and Japanese Unexamined Patent Publication No. 2004-
211268.
25 [0053]
30
Furthermore, the polyester may contain an arbitrary
additive, such as a catalyst, anti-coloring agent, heatresistant
agent, flame retardant, antioxidant or
inorganic fine particles as necessary.
providing a flame retardant within the
In particular,
polyester polymer
or on the surface of polyester fibers improves flame
retardance of the fabric, thereby making this preferable.
[0054]
Monofilament fineness in the aforementioned
35 polyester fibers is preferably 5.0 dtex or less, and more
preferably 0.0001 dtex to 1.5 dtex, in terms of
increasing fiber surface area and obtaining superior
I
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I
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!
perspiration absorbency.
[0055]
- 15 -
In the aforementioned polyester fibers, the crosssectional
shape (transverse cross-sectional shape) of
5 monofilaments is preferably irregular (shape other than a
circular shape). This irregularly shaped cross-section
is preferably a flat cross-section, W-shaped crosssection,
cross-shaped cross-section, hollow cross-section
(such as that having a round hollow shape, triangular
10 hollow shape or rectangular hol.low shape) or triangular
cross-section. Moreover, the irregularly shaped crosssection
may also be a flat cross-section having a
constricted portion as described in Japanese Unexamined
Patent Publication No. 2004-52191, or a cross-section
15 having a fin protruding radially from a hollow core
portion as described in Japanese Unexamined Patent
Publication No. 2012-97380. As a result of organic
fibers having an irregularly shaped cross-section, voids
can be formed between fibers and superior moisture
20 absorbency can be obtained due to capillary action. In
addition, there is also the synergistic effect of flame
retardance being further improved by moisture that has
been absorbed by the moisture absorbing action. Among
the aforementioned cross-sectional shapes, a W-shaped
25 cross-section is particularly preferable since voids can
be easily formed between fibers even with only a small
number of fibers.
[0056]
The aforementioned polyester fibers may also be
30 composite fibers obtained by laminating two components
either side-by-side or in the form of an eccentric coresheath.
Since these composite fibers normally have fine
crimps demonstrating latent crimping, these polyester
fibers not only have stretchabi1ity, but also demonstrate
35 superior capillary action.
At that time, the two components composing the
composite fibers are preferably any combination selected
- 16 -
from the group consisting of the combination of
polytrimethylene terephthalate and polytrimethylene
terephthalate, the combination of polytrimethylene
terephthalate and polyethylene terephthalate, and the
5 combination of polyethylene terephthalate and
polyethylene terephthalate.
[0057]
In the fabric of the present invention, there are no
particular limitations on the shape of the aramid fibers
10 and other fibers that compose the fabric, and the fibers
may be short fibers (spun yarn) or long fibers
(multifilament yarn). Spun yarn is particularly
preferable in terms of maintaining favorable laundering
durability of the hydrophilizing agent.
15 [0058]
At that time, the aramid fibers and other fibers may
be blended simultaneously or interknitted or interwoven
separately. In particular, if aramid fibers and the
aforementioned polyester fibers are blended and contained
20 in a fabric as blended yarn, in addition to being able to
obtain superior flame retardance, the laundering
durability of the hydrophilizing agent can be favorably
maintained, thereby making this preferable.
25
[0059]
In addition, if the aforementioned spun yarn
demonstrates a coiled shape, stretchability can be
imparted to the fabric, thereby making this preferable.
Spun yarn demonstrating a coiled shape can be obtained
according to the method indicated below.
30 [0060]
Namely, spun yarn containing aramid fibers is first
prepared. At that time, electrically conductive yarn or
other raw cotton may be blended into the aramid fibers.
The spun yarn fineness (count) is preferably such that
35 the cotton count (Ecc) is 20 to 60 count from the
viewpoints of thread breakage resistance and strength.
The number of monofilaments is preferably 60 or more, and
I
''
5
- 17 -
raw cotton monofilament fineness is preferably 3.0 dtex
or less, and more preferably 0.001 dtex to 3.0 dtex. The
twist factor (first twist factor) of the spun yarn is
preferably within the range of 3.6 to 4. 2' and more
preferably 3.8 to 4. 0. Although pilling resistance of
the fabric improves as result of the fabric nap
converging as the twist factor becomes larger, since the
spun fiber becomes rigid, there is the risk of a decrease
in the degree of elongation causing a reduction in tear
10 strength of the fabric or causing the fabric to become
hard. Furthermore, twist factor is represented with the
equation indicated below.
Twist factor= number of twists (twist/2.54
em) /cotton count (Ecc) 112 of spun yarn
15 The spinning method of the spun yarn may be an innovative
spinning method such as ring spinning, MTS, MJS or MVS,
or an ordinary spinning method such as ring spinning.
The direction of twisting may be the Z direction or S
direction.
20 [0061]
Next, after having carried out twist setting (vacuum
steaming) on the spun yarn as necessary, two or more
strands of the spun yarn, preferably 2 to 4 strands and
particularly preferably 2 strands, are uniformly arranged
25 in parallel and twisted together. Examples of twisting
machines used for twisting include an up-twister,
covering machine, Italian-type twisting machine and
double twister.
30
[0062]
At that time, the twisting direction of twisting
tsecond twisting) is the direction that results in
additional twisting. For example, in the case the
twisting direction of the spun yarn is Z twisting,
twisting is carried out in the same Z direction. In
35 addition, the number of twists is preferably 2000/m or
more, more preferably 2100/m to 3000/m, and particularly
preferably 2300/m to 2800/m. In the case the number of
5
10
- 18 -
twists is less than 2000/m, there is the risk of the spun
yarn not taking on a coiled shape after twist setting and
untwisting.
[0063]
Next, twist setting is carried out on the twisted
yarn (high-pressure steam setting similar to conventional
aramid two ply yarn twist setting) . In the case it is
necessary to impart firm twist setting, the number of
twist setting cycles may be increased or the temperature
and duration of twist setting may be changed. For
example, although twist setting may be carried out at a
setting temperature of ll5°C to 125°C, setting time of 20
minutes to 40 minutes, and number of setting cycles of 1
to 3 cycles, a higher setting temperature and longer
15 setting time results in favorable twist setting, thereby
making this preferable. Although it is possible to
further improve twist setting by increasing the number of
twist setting cycles, extending the treatment time or
raising the temperature, it is preferable to extend the
20 treatment time in consideration of production management
(such as with respect to work management safety or
quality control). In addition, a higher degree of vacuum
results in better quality, thereby making this
preferable.
25 [0064]
Next, after having been subjected to twist setting,
the twisted yarn is untwisted (by twisting in the
direction opposite to the twisting direction during
twisting) and then heat-set as necessary. At that time,
30 the number of twisted threads that are untwisted is
preferably within the range of 70% to 90% of the
aforementioned twisted yarn. As a result of carrying out
untwisting on a number of twisted threads within this
range, spun yarn is obtained that has stretchability and
35 is formed into a coiled shape. The number of twists in
the spun yarn formed into a coiled shape is preferably
within the range of 200/m to 860/m in terms of obtaining
,il,
''i
superior stretchability.
[0065]
- 19 -
There are no particular limitations on the structure
of the fabric, and examples thereof include plain weave,
5 twill and double weave. Among these, the use of a double
weave structure having a structure consisting of two
layers of fabric results in increased water absorption
performance, thereby making this preferable. At that
time, although there are no particular limitations on the
10 fibers composing the yarn that composes the two layers,
yarn exposed in the layer mainly located on the skin side
is preferably composed of polyester fibers at 10% by
weight or more, while yarn exposed in the layer mainly
located on the outside is preferably composed of
15 polyester fibers within the range of 0% by weight to 10%
by weight. Incorporating a larger amount of polyester
fibers having superior water absorption performance in
yarn exposed in the layer located mainly on the side skin
results in increased water absorption performance, while
20 reducing the content rate of polyester fibers in yarn
exposed in the layer mainly located on the outside makes
it possible to maintain flame retardation performance of
the overall fabric.
25
[0066]
In the fabric of the present invention, the
providing of a hydrophilizing agent not only results in
flame retardance but also durable moisture absorbency.
[0067]
Here, preferable examples of hydrophilizing agents
30 include polyethylene glycol diacrylate, derivatives of
polyethylene glycol diacrylate, polyethylene
terephthalate-polyethylene glycol copolymers, watersoluble
polyurethane, and polyethylene glycolaminosilicone
copolymers.
35 [0068]
The amount of hydrophilizing agent incorporated in
the fabric in terms of the ratio based on the weight of
- 20 -
the fabric is preferably 0.1% by weight to 2.0% by
weight, and more preferably, 0.1% by weight to 0.7% by
weight. Furthermore, the incorporated amount of
hydrophilizing agent can be calculated using the equation
5 indicated below.
10
Incorporated amount of hydrophilizing _agent (%)
((fabric weight following incorporation of
hydrophilizing agent) - (fabric weight prior to
incorporation of hydrophilizing agent)/(fabric
weight prior to incorporating hydrophilizing agent))
X 100
In this equation, the fabric weight following
incorporation of hydrophilizing agent refers to the
weight after drying.
15 [0069]
Examples of methods used to incorporate the
hydrophilizing agent include a method using padding
treatment and a method consisting of treatment in the
same bath as that of the dyeing solution during dyeing
20 processing.
[0070]
The fabric is preferably subjected to dyeing
processing. Moreover, various other types of processing
may also be additionally applied by incorporating a water
25 repellent, heat storage agent, ultiaviolet screening
agent, antistatic agent, disinfectant, deodorant, insect
repellen.t, mosquito repellent, phosphorescent agent or
retroreflective agent and the like.
[0071]
30 The basis weight of a fabric obtained in this manner
is preferably 130 g/m2 to 260 g/m2
, and more preferably
140 g/m2 to 220 g/m2
•
[0072]
This fabric demonstrates durable water absorbency in
35 addition to flame retardance as a result of containing
aramid fibers and incorporating a hydrophilizing agent as
described above.
- 21 -
[0073]
Here, afterflame obtained by measuring flammability
as defined in Method A-4 of JIS Ll091-1992 is preferably
2.0 seconds or less. In addition, moisture absorption
5 performance as defined in AATCC79 is preferably initially
10 seconds or less, and more preferably initially 0.1
seconds to 8 seconds. In addition, water absorption
performance as defined in AATCC79 after 20 cycles of
laundering as defined in IS06339-2012 (6N-F) is
10 preferably 30 seconds or less, and more preferably 1
second to 20 seconds.
[0074]
The textile product of the present invention is a
textile product that uses the aforementioned fabric and
15 is selected from the group consisting of protective
clothing, fire-protective clothing, fire-fighting
clothing, rescue clothing, workwear, police uniforms,
self defense forces uniforms and military clothing.
[0075]
20 The textile product has durable moisture absorbency
in addition to flame retardance since it uses the
aforementioned fabric.
Examples
25 [0076]
Although the following provides a detailed
description of examples and comparative examples of the
present invention, the present invention is not limited
thereby. Furthermore, each of the properties described
30 in the examples were measured according to the methods
indicated below.
(1) Residual Solvent
Approximately 8.0 g of raw fibers were collected and
dried for 120 minutes at 105°C followed by allowing to
35 cool in a desiccator and determining fiber Height (Ml)
Continuing, these fibers were then subjected to reflux
extraction using a Soxhlet extractor in methanol for 1.5
----·-----·-------··-·-------··--·-----~~---.---
- 22 -
hours to extract amide-based solvent contained in the
fibers. Following completion of extraction, the fibers
were removed and vacuum-dried for 60 minutes at 150°C
followed by allowing to cool in a desiccator and
5 determining fiber weight (M2). The amount of residual
solvent in the fibers (weight of amide-based solvent) was
calculated according to the equation indicated below
using the resulting values of Ml and M2.
Residual solvent (%) = [(Ml-M2)/Ml] x 100
10 The resulting ra\-J fibers were then subjected to crimping
processing and cutting to obtain staple fibers having a
fiber length of 51 mm (raw cotton) .
(2) Degree of Crystallization
Raw fibers were uniformly arranged and formed into a
15 fiber bundle having a diameter of about 1 mm and then
installed on a fiber sample stage followed by measuring
the diffraction profile thereof using an X-ray
diffractometer (RINT TTRIII, Rigaku Corp.). Measurement
conditions consisted of the use of a Cu-Ka radiation
20 source (50 kV, 300 rnA), scanning angle range of 10° to
35°, continuous mea,surement at width of 0. 1° and scanning
rate of 1°/minute. The total scattering profile was
obtained by correcting the measured diffraction profile
based on linear approximations of atmospheric scattering
25 and incoherent scattering therefrom. Next, the amorphous
scattering profile was subtracted from the total
scattering profile to obtain the crystal scattering
profile. The degree of crystallization was then
calculated according to the equation indicated below from
30 the integrated intensity of the crystal scattering
profile (crystal scattering intensity) and the integrated
intensity of the total scattering profile (total
scattering intensity).
35
Degree of crystallization (%) = (crystal scattering
intensity/total scattering intensity] x 100
[Example 1]
- 23 -
Staple fibers respectively consisting of meta-type
wholly aromatic polyamide fibers composed of Conex® (MA),
para-type wholly aromatic polyamide fibers composed of
Twaron® (PA), and electrically conductive nylon fibers
5 composed of No Shock® (Solda Co., Ltd.) (NY) (each
having a fiber length of 51 mm) were formed into two-ply
spun yarn having a yarn count of 40 obtained by blending
MA, PA and NY at a weight ratio of 93/5/2, weaving into a
plain weave having a weaving density in the warp
10 direction of 56 threads/25.4 mni and weaving density in
the weft direction of 48 threads/25.4 mm, and subjecting
to singeing and scouring under processing conditions
employed in ordinary methods, followed by imparting a
hydrophilizing agent containing polyethylene
15 terephthalate-polyethylene glycol copolymer by a padding
treatment method, and subsequently subjecting to heat
setting at 180°C to obtain a plain weave fabric having a
basis weight of 150 g/m2 and adhered amount of
hydrophilizing agent of 0.2% by weight to 0.5% by weight.
20 Perspiration absorption performance as defined in
AATCC79 in the resulting fabric was initially 2.0 seconds
and 25 seconds after 20 cycles of laundering as defined
in 1806339-2012 (6N-F), demonstrating that the fabric has
superior moisture absorbency. In addition, alterflame
25 obtained by measuring flammability as defined in Method
A-4 of JIS L1091-1992 was 2.0 seconds or less and did not
present a problem. When work clothes were fabricated
using this fabric and worn, they were determined to
absorb perspiration when perspiring and have superior
30 wear comfort.
[0077]
[Example 2]
Example 2 was carried out in the.same manner as
Example 1 with the exception of blending staple fibers
35 respectively consisting of meta-type wholly aromatic
polyamide fibers (MA), para-type wholly aromatic
- 24 -
polyamide fibers (PA), electrically conductive nylon
fibers (NY) and flame-retardant polyester fibers (PE)
(each having a fiber length of 51 mm) at a weight ratio
of MA/PA/NY/PE of 73/5/2/20 into two-ply spun yarn having
5 a yarn count of 40.
[0078]
Moisture absorption performance as defined in
AATCC79 in the resulting fabric was initially 0.9 seconds
and 11 seconds after 20 cycles of laundering as defined
10 in IS06339-2012 (6N-F), demonstrating that the fabric has
superior moisture absorbency. In addition, afterflame
obtained by measuring flammability as defined in Method
A-4 of JIS L1091-1992 was 2.0 seconds or less and did not
present a problem. When work clothes were fabricated
15 using this fabric and worn, they were determined to
absorb perspiration when perspiring and have superior
wear comfort.
[0079]
[Example 3]
20 Example 3 was carried out in the same manner as
Example 2 with the exception of weaving a double fabric
having a weaving density in the warp direction of 56
threads/25.4 mm and weaving density in the weft direction
of 60 threads/25.4 mm as in Example 2 in accordance with
25 the weave structural diagram shown in FIG. 1.
[0080]
Moisture absorption performance as defined in
AATCC79 in the resulting fabric was initially 0.6 seconds
and 9.0 seconds after 20 cycles of laundering as defined
30 in IS06339-2012 (6N-F), demonstrating that the fabric has
superior moisture absorbency. In addition, afterflame
obtained by measuring flammability as defined in Method
A-4 of JIS Ll091-1992 was 2.0 seconds or less and did not
present a problem. When work clothes were fabricated
35 using this fabric and worn, they were determined to
absorb perspiration when perspiring, not stick to the
skin, and have superior wear comfort.
- 25 -
[0081]
[Comparative Example 1]
Comparative Example 1 was carried out in the same
manner as Example 1 with the exception of not imparting a
5 hydrophilizing agent as in Example 1. Moisture
absorption performance of the resulting fabric as defined
in AATCC79 was initially 58 seconds and 48.0 seconds
after 20 cycles of laundering as defined in 1306339-2012
(6N-F), demonstrating that the fabric has no moisture
10 absorbency. In addition, afterflame obtained by
measuring flammability as defined in Method A-4 of JIS
L1091-1992 was 2.0 seconds or less and did not present a
problem. When work clothes were fabricated using this
fabric and worn, perspiration was not absorbed when
15 perspiring and were determined to be uncomfortable.
[0082]
[Example 4]
Staple fibers respectively consisting of meta-type
wholly aromatic polyamide fibers (MA), para-type wholly
20 aromatic polyamide fibers (PA), W-shaped cross-section
polyester fibers (PE) and electrically conductive nylon
fibers (NY) (each having a fiber length of 51 mm) were
formed into two-ply spun yarn having a yarn count of 40
obtained by blending MA, PA, PE and NY at a weight ratio
25 of 78/5/15/2, weaving into a plain weave having a weaving
density in the warp direction of 56 ·threads/25.4 mm and
weaving density in the weft direction of 48 threads/25.4
mm, and subjecting to singeing and scouring under
processing conditions employed in ordinary methods,
30 followed by imparting a perspiration absorption
processing agent containing polyethylene terephthalatepolyethylene
glycol copolymer by a padding treatment
method, and subsequently subjecting to heat setting at
l80°C to obtain a plain weave fabric having a basis weight
35 of 150 g/m2
•
[0083]
Moisture absorption performance as defined in
- 26 -
AATCC79 in the resulting fabric was initially 0.5 seconds
and 8.0 seconds after 20 cycles of laundering as defined
in IS06339-2012 (6N-F), demonstrating that the fabric has
superior perspiration absorbency. In addition,
5 afterflame obtained by measuring flammability as defined
in Method A-4 of JIS L1091-1992 was 2.0 seconds or less
and did not present a problem. When work clothes were
fabricated using this fabric and worn, they were
determined to absorb perspiration when perspiring and
10 have superior wear comfort.
[0084]
[Example 5]
Example 5 was carried out in the same manner as
Example 4 with the exception of blending staple fibers
15 respectively consisting of meta-type wholly aromatic
polyamide fibers (MA), para-type wholly aromatic
polyamide fibers (PA), W-shaped cross-section flame
retardant polyester fibers (NPE) and electrically
conductive nylon fibers (NY) (each having a fiber length
20 of 51 mm) at a weight ratio of MA/PA/NPE/NY of 78/5/15/2
into two-ply spun yarn having a yarn count of 40.
[0085]
Afterflame obtained by measuring flammability in the
resulting fabric as defined in Method A-4 of JIS L1091-
25 1992 was 2.0 seconds or less and did not present a
problem. In addition, moisture absorption performance as
defined in AATCC79 was initially 1.1 seconds and 13
seconds after 20 cycles of laundering as defined in
IS06339-2012 (6N-F), demonstrating that the fabric has
30 superior moisture absorbency, and when work clothes were
fabricated and worn, they were determined to absorb
perspiration when perspiring and have superior wear
comfort.
35
[0086]
[Example 6]
Example 6 was carried out in the same manner as
Example 4 with the exception of blending staple fibers
- 27 -
respectively consisting of meta-type wholly aromatic
polyamide fibers (MA), para-type wholly aromatic
polyamide fibers (FA), round-shaped cross-section
polyester fibers (FE) and electrically conductive nylon
5 fibers (NY) (each having a fiber length of 51 mm) at a
weight ratio of MA/FA/PE/NY of 78/5/15/2 into two-ply
spun yarn having a yarn count of 40.
[0087]
Afterflame obtained by measuring flammability of the
10 resulting fabric as defined in Method A-4 of JIS Ll091-
1992 was 2.0 seconds or less and did not present a
problem. In addition, moisture absorption performance as
defined in AATCC79 was initially 1.2 seconds and 12
seconds after 20 cycles of laundering as defined in
15 1806339-2012 (6N-F), demonstrating that the fabric has
superior moisture absorbency, and when work clothes were
fabricated and worn, they were determined to absorb
perspiration when perspiring and have superior wear
comfort.
20 [0088]
[Example 7]
Example 7 was carried out in the same manner as
Example 4 with the exception of blending staple fibers
respectively consisting of meta-type wholly aromatic
25 polyamide fibers (MA), para-type wholly aromatic
polyamide fibers (FA) and electrically conductive nylon
fibers (NY) (each having a fiber length of 51 mm) at a
weight ratio of MA/PA/NY of 93/5/2 into two-ply spun yarn
having a yarn count of 40 and using as warp yarn, and
30 twisting this two-ply spun yarn having a yarn count of 40
with composite fibers composed of polyethylene
terephthalate and polytrimethylene terephthalate (total
fineness: 84 dtex/24 filaments) and using as weft yarn,
followed by weaving the yarns into a plain weave having a
35 weaving density in the warp direction of 56 threads/25.4
mm and weaving density in the weft direction of 43
threads/25.4 mm.
- 28 -
[0089]
Afterflame obtained by measuring flammability of the
resulting fabric as defined in Method A-4 of JIS Ll091-
1992 was 2.0 seconds or less and did not present a
5 problem. In addition, moisture absorption performance as
defined in AATCC79 was initially 1.0 seconds and 14
seconds after 20 cycles of laundering as defined in
IS06339-2012 (6N-F}, demonstrating that the fabric has
superior moisture absorbency, and when work clothes were
10 fabricated and worn, they were determined to absorb
perspiration when perspiring and have superior wear
comfort. In addition, the work clothes also demonstrated
stretchability in the horizontal direction and were easy
to move in.
15 [0090]
20
[Example 8]
Meta-type wholly aromatic aramid fibers were
produced according to the method indicated below.
[0091]
20.0 parts by weight of powdered poly(meta-phenylene
isophthalamide}, produced by interfacial polymerization
in compliance with the method described in Japanese
Examined Patent Publication No. S47-10863 and having an
intrinsic viscosity (I.V.} of 1.9, were suspended in 80.0
25 parts by weight of N-methyl-2-pyrrolidone (NMP} cooled to
-10°C and formed into a slurry. Continuing, the
suspension was heated to 60°C to dissolve and obtain a
transparent polymer solution. 3.0% by weight, based on
the weight of the polymer, of powdered 2-[2H-
30 benzotriazol-2-yl]-4,6-bis(1-methyl-1-phenylethyl} phenol
(solubility in water: 0.01 mg/L} were mixed into this
polymer solution and dissolved followed by vacuum
degassing to obtain a spinning solution (spinning dope}.
35
[Spinning/Coagulation Step]
The aforementioned spinning dope was discharged from
a spinneret having a hole diameter of 0.07 mm and 500
holes into a coagulation bath at a bath temperature of
·----,---,------
- 29 -
30°C to spin the dope into fibers. The composition of the
coagulation bath consisted of water and NMP at a ratio of
45/55 (parts by weight), and the spinning dope was spun
into fibers by discharging into the coagulation bath at a
5 yarn speed of 7 m/min.
[Plastic Drawing Bath Drawing Step]
Continuing, drawing was carried out at a draw rate
of 3.7 in a plastic drawing bath composed of water and
NMP at a ratio 45/55 parts by weight at a temperature of
10 40°C.
[Washing Step]
Following drawing, washing was carried out in a bath
containing water and NMP at a ratio of 70/30 parts by
weight at 20°C (immersion length: 1.8 m) followed by
15 washing in a water bath at 20°C (immersion length: 3.6 m),
and further washing thoroughly by passing through a hot
water bath at 60°C (immersion length: 5.4 m).
[Dry Heat Treatment Step]
The washed fibers were subjected to dry heat
20 treatment with a heated roller having a surface
temperature of 280°C to obtain meta-type wholly aromatic
aramid fibers.
[Properties of Raw Fibers]
Properties of the resulting meta-type wholly
25 aromatic aramid fibers consisted of fineness of 1. 7 dtex,
residual solvent of 0.08% by weight and degree of
crystallization of 19%. The fibers indicated below were
used for the other staple fibers.
30
35
Polyester fibers: Polyethylene terephthalate fibers,
Teijin Ltd.
Flame-retardant rayon fibers: Lenzing FR®, Lenzing
AG
Para-aramid fibers: Twaron®, Teijin Aramid B.V.
Electrically conductive yarn (nylon): No Shock®,
Solcia Co., Ltd. (electrically conductive nylon yarn
incorporating electrically conductive carbon fine
- 30 -
particles)
Next, staple fibers respectively consisting of metatype
wholly aromatic aramid fibers (MA) (length: 51 mm),
para-type wholly aromatic polyamide fibers (PA) (length:
5 50 mm), polyester fibers (length: 38 mm) and flameretardant
rayon (Ry) (length: 51 mm) were formed into
two-ply spun yarn having a yarn count of 40 obtained by
blending MA, PA, PE and RY at a weight ratio of
55/5/15/25, and then weaving at a weaving density in the
10 warp direction of 67 threads/25 .. 4 mm and weaving density
in the weft direction of 56 threads/25.4 mm to obtain a
twill fabric having a basis weight of 170 g/m2
• After
subjecting the fabric to dyeing and finishing processing
according to ordinary methods, the fabric was subjected
15 to the perspiration absorption processing indicated
below.
[Fabric Perspiration Absorption Processing]
The fabric was immersed in a perspiration absorption
processing agent in the form of polyethylene glycol-
20 aminosilicone copolymer (50 g/L) and then compressed and
dried followed by subjecting to dry heat setting for 2
minutes at 180°C.
Afterflame obtained by measuring flammability in the
resulting fabric as defined in Method A-4 of JIS L1091-
25 1992 was 2.0 seconds or less and did not present a
problem. In addition, moisture absorption performance as
defined in AATCC79 was initially 0.9 seconds and 9.0
seconds after 20 cycles of laundering as defined in
IS06339-2012 (6N-F). When work clothes were fabricated
30 using this fabric and worn, they were determined to
absorb perspiration when perspiring, not stick to the
skin and have superior wear comfort.
INDUSTRIAL APPLICABILITY
35 [0092]
According to the present invention, a fabric and
textile product are provided that have durable moisture
- 31 -
absorbency in addition to flame retardance, thereby
having extremely high industrial value.

CLAIMS
1. A fabric comprising aramid fibers, wherein the
fabric is imparted with a hydrophilizing agent.
2. The fabric according to claim 1, wherein the
aramid fibers comprise 30% by weight to 97% by weight of
meta-aramid fibers and 3% by weight to 70% by weight of
para-aramid fibers.
3. The fabric according to claim 2, wherein the
degree of crystallization of the meta-type wholly
aromatic polyamide fibers is wi.thin the range of 15% to
25%.
4. The fabric according to claim 2, wherein the
meta-type wholly aromatic polyamide that forms the metatype
wholly aromatic polyamide fibers is a meta-type
15 wholly aromatic polyamide obtained by copolymerizing an
aromatic diamine component or an aromatic dicarboxylic
acid halide component in an aromatic polyamide backbone
containing a repeating structural unit represented by the
following formula (1), the aromatic diamine component or
20 the aromatic dicarboxylic acid halide component having
different primary constituent units in the repeating
structures thereof, such that it is copolymerized as a
third component at 1 mol% to 10 mol% based on the total
amount of repeating structural units of the aromatic
25 polyamide:
30
35
(NH-A r 1-NH-CO-A r 1-CO) ( 1)
wherein, Arl represents a divalent aromatic group having
a linking group in the meta coordination or in a
coordination other than the parallel axis.
5. The fabric according to claim 4, wherein the
aromatic diamine serving as a third component is
represented by formula (2) or formula (3) and the
aromatic dicarboxylic acid halide is represented by
formula (4) or formula (5):
H2N-Ar2-NH2
H2N-Ar2-Y-Ar2-NH2
( 2)
( 3)
I
I
XOC-Ar3-COX
XOC-Ar3-Y-Ar3-COX
- 33 -
( 4 )
(5)
(wherein, Ar2 represents a divalent aromatic group
different from Ar1, Ar3 represents a divalent aromatic
5 group different from Ar1, Y represents at least one type
of atom or functional group selected from the group
consisting of an oxygen atom, sulfur atom and alkylene
group, and X represents a halogen atom) .
10
15
6. The fabric according to claim 2, wherein the
residual amount of solvent in the meta-type aromatic
polyamide fibers is 0.1% by weight or le.ss.
7. The fabric according to claim 1, further
containing electrically conductive fibers.
8. The fabric according to claim 1, further
containing polyester fibers.
9. The fabric according to claim 8, wherein
polyester fibers are polyester fibers that contain
flame retardant.
the
a
10. The fabric according to claim 8, wherein the
20 polyester fibers have an irregularly shaped crosssection.
11. The fabric according to claim 8, wherein the
cross-sectional shape of monofilaments in the polyester
fibers is flat, W-shaped, cross-shaped, hollow o~
25 triangular.
12. The fabric according to claim 8, wherein the
aramid fibers and/or the electrically conductive fibers
and/or the polyester fibers are contained in the fabric
as spun yarn.
30 13. The fabric according to claim 8, wherein the
35
aramid fibers and the polyester fibers are contained in
the fabric as blended yarn.
14. The fabric according to claim 1, wherein the
fabric has a double weave structure.
15. The fabric according to claim 1, wherein the
hydrophilizing agent is polyethylene glycol diacrylate, a
derivative of polyethylene glycol diacrylate,
I
I
I
[,
li II
I
io!'
i
5
10
15
- 34 -
polyethylene terephthalate-polyethylene glycol copolymer,
water-soluble polyurethane, or polyethylene glycolaminosilicone
copolymer.
16. The fabric according to claim 1, wherein the
basis weight of the fabric is within the range of 130 g/m2
to 260 g/m2
•
17. The fabric according to claim 1, wherein the
fabric is subjected to.dyeing processing.
18. The fabric according to claim 1, wherein
afterflame obtained by measuring flammability as defined
in Metnod A-4 of JIS L1091-1992 is 2.0 seconds or less.
19. The fabric according to claim 1, wherein
moisture absorption performance as d·efined in AATCC79 is
10 seconds or less.
20. The fabric according to claim 1, wherein water
absorption performance as defined in AATCC79 after 20
cycles of laundering as defined in IS06339-2012 (6N-f) is
30 seconds or less.
21. A textile product that uses the fabric
20 according to claim 1 and is selected from the group
consisting of protective clothing, fire-protective
clothing, fire-fighting clothing, rescue clothing,
workwear, police uniforms, self defense forces uniforms
and military clothing.