Field of Invention-

Over the years, jute sacks have been used for bulk goods packaging, especially
food-grains. Due to significant fluctuation in supply of jute raw material, there is
need to develop jute-like yarn comprising jute and bulk yarn, and subsequently
manufacture bag from the fabrics made from jute-like yarn. 5 Present invention
relates to sacks made from flat or tubular fabric made from jute-like yarn and its
method of manufacturing.
Background of Invention
10 Jute is a natural fibre extracted from stem of the jute plant and has a golden silky
texture. Jute is an environment-friendly fibre and is renowned for its biodegradability
and recyclability. In India, approximately 84% of total jute produced
is used for sacks, storage and packaging purposes. Jute bags are ideal for storing
food grains as they allow air circulation, which ultimately preserves the freshness
15 of food grains.
As observed over the years, there are always significant fluctuations in the area
under jute cultivation in India. As the area of raw jute production reduces, the
production of raw jute crop fluctuates. The main factors responsible for
20 fluctuation in production of jute are changes in rainfall pattern during sowing
season; average jute prices realized during previous jute season and the returns
realized from the competing crops during the previous seasons. Due to these
reasons, Indian jute mills are facing shortage of raw material, which has resulted
3
in closure of many jute mills in the country. Also, many mills have started
importing jute material.
There is urgent need to address the issue of raw material shortage for the sack
production, by producing jute-like yarn and a device and method 5 for production of
sacks using the jute-like yarn.
Objects Of Invention
The main objective of the invention is to develop yarn which has texture like jute
10 and compatible for fabric making.
Another objective of this invention is to set-up process for production of fabric
from jute and developed composite yarn.
15 Another objective of the invention is to improve the productivity of fabric
production method.
Other objective of invention is to maintain the industry norm during fabric/sack
production.
20
Summary Of Invention:
The invention discloses a woven fabric of flat or tubular type. It has warp and
weft threads in an arrangement such that some or all of either weft or warp, or
4
both, of fabric are made threads selected from a group comprising jute threads,
synthetic bulk textured yarn, and stiff yarn, or a composite yarn made from union
of synthetic bulk textured yarn and stiff yarn, where the synthetic bulk textured
yarn and the stiff yarn are united or joined together by the process of twisting or
mingling or mixing them. The invention also discloses storage 5 bags or furnishing
fabrics made from the aforementioned woven fabric. The invention also discloses
a method of making aforementioned bags. The fabric of the invention and
consequently the bags made from it have the advantage that they are lighter in
weight when compared to conventional fabrics that use some of the materials used
10 herein, particularly jute. A further advantage of the fabric of the invention is that it
provides the required strength for the purpose it’s suited for (storage bags and
furnishing materials) at a lower cost than the conventional fabrics made using
some of the materials used herein, particularly jute.
15 List of parts
1. Bag
1A. Woven fabric
1B – Warp threads
1C – Weft threads
20 2. Jute or jute yarn/thread
3. Synthetic Bulk textured yarn (SBTY) thread
3A. Composite yarn thread
4. Stiff yarn
5
Brief Description Of Figures
Figure 1 shows a typical bag made from woven fabric
Figure 2 shows warp and weft arrangement in a section of the fabric of the
5 invention
Figure 3 shows an alternative warp and weft arrangement of the fabric of the
invention
10 Figures 4A to 4L show further alternative arrangements of warp and weft of the
woven fabric of the invention
Description Of Invention:
Sacking jute is rougher and heavier cloth variety of jute used mainly for storing
15 food grains such as wheat, rice, corn, pulses and coffee beans. Hessian jute is
made from finer grade jute and is lighter in weight than sacking jute. This type of
jute is generally used for string fruits, vegetable and product packaging.
The jute yarn has rough texture giving anti-slippage properties and inherent
20 moisture absorption capability. The term “synthetic” used in the context of the
synthetic bulk textured yarn (SBTY – 3) of this invention includes any man-made
fibre or filament yarn including bio-degradable yarns. Generally, the synthetic
yarn like polypropylene used for packaging application has smooth texture and
6
sliding properties. For making the yarn compatible with jute, the synthetic yarn
has to be processed for lending it the texture and bulking properties similar to
natural jute. For the threads used in warp or weft direction, the term strips is also
used synonymously with threads.
5
Synthetic yarn is subjected to the known suitable bulking and texturing methods
like friction spinning, air-texturing, stuffer box crimping, draw texturing or
similar methods to produce the required physical properties of roughness and
texture in the synthetic yarn which now also has similar look as that of jute.
10
The woven fabric (1A) of the present invention is of flat or tubular type and
comprises threads used as warp (1B) and weft (1C) made from jute yarn (2),
synthetic bulk textured yarn (3), stiff yarn (4). The weaving pattern may be
distributed uniformly over the surface of bag (as shown in Figure 2). The fabric
15 weave can be plain or twill or anti-slip or any other possibilities. The fabric (1A)
can be flat fabric or tubular fabric, preferably made on circular weaving loom.
Alternatively, an alternating jute yarn (2) and synthetic bulk textured yarn (3)
pattern may be present only in few portion of the bag (1), these portions possibly
20 being, longitudinal and/or transverse strips, or strips spaced apart on the surface of
bag.
7
One of the aims of the invention is to attain a certain percentage of jute by weight
per area of the fabric, while enhancing the strength and durability of the bag when
compared with bags made from 100% jute.
In the alternative embodiment shown in Figure 3, the jute 5 yarn (2) and the
synthetic bulk textured yarn (3) alternate with each other in both directions (warp
and weft 1B, 1C) of weave of the fabric (1A).
Figures 4A to 4F show further alternatives in which the jute yarn (2), the synthetic
10 bulk textured yarn (3), the composite yarn (3A), or the stiff yarn (4) may be
arranged according to the invention. These are explained as follows.
In yet another embodiment of the invention, the jute yarn (2), the synthetic bulk
textured yarn (3), the composite yarn (3A), and the stiff yarn (4) may alternate in
15 both directions but in an irregular manner. A number of such configurations are
possible and fall under the scope of this description but not necessarily illustrated
in Figures.
In one embodiment, the bag fabric has a composite warp or composite weft yarn
20 (3A) made of synthetic bulk textured yarn (3) and stiff yarn (4) such as slit film
tape yarn, folded tape, fibrillated tape, or any type of monofilament yarn or
similar, and the weft yarn would be jute yarn. Here, stiff yarn (4) is united or
joined with the synthetic bulk textured yarn (3) to form the composite yarn (3A)
8
using unifying or joining processes such as twisting or mingling or mixing or
laying together.
Stiff yarn (4) is made from polymeric material or bio-degradable material. Both or
either one of SBTY (3) and stiff yarn (4) may have inorganic 5 content and/or
colour content and/or functional additive content.
It is also in the scope of the invention to have simply a stiff yarn (4) in the
weaving pattern in addition to the synthetic bulk textured yarn (3). For example,
10 in warp or weft direction (1B, 1C), the yarn configuration may be jute-SBTY-stiff
yarn (2-3-4 Figure 4E), followed by a similar or other configuration. Or it may be
jute-stiff yarn-SBTY (2-4-3 also Figure 4E) followed by a similar or other
configuration.
15 It is therefore evident from the foregoing disclosure that the woven fabric (1A) of
the invention having warp and weft threads (1B, 1C) may be such that some or all
of either weft or warp threads (1B, 1C), or both, of fabric (1A) are made threads
selected from a group comprising jute threads (2), synthetic bulk textured yarn
(3), and stiff yarn (4), or a composite yarn (3A) made from a union or joining of
20 synthetic bulk textured yarn (3) and stiff yarn (4).
In one embodiment, the bag (1) according to invention has walls with jute threads
(2) as weft threads (1C) and synthetic bulk textured yarn (3) as warp threads (1B).
9
In another embodiment, the bag (1) has strip-like region, in which synthetic bulk
textured yarn (3) are interlaid between the jute yarns (2) in either of the
longitudinal or transverse direction. The number of such regions and their width
can 5 vary as required.
Also, the bag fabric may have strips or regions of synthetic bulk textured yarn (3)
which are either warp threads or weft threads (1B, 1C), or both wrap and weft
strips bands.
10
In an embodiment, the composite yarn (3A) can be treated with or have in-built
additives like anti-fungal or anti-rodent agents.
In one embodiment (Figure 3), warp threads (1B) (or weft threads (1C)) are
15 arranged in a pattern that comprises alternatingly positioned threads of jute (2)
and synthetic bulk textured yarn (3). In this embodiment, the weft threads (1C) (or
warp threads (1B)) may be arranged in any configuration of jute threads (2),
and/or synthetic bulk textured yarn (3), and/or composite yarn (3A), and/or stiff
yarn (4).
20 In another embodiment (Figure 4A), the warp threads (1B) (or weft threads (1C))
are arranged in a pattern that comprises alternatingly positioned threads of jute (2)
and composite yarn (3A). In this embodiment, the weft threads (1C) (or warp
10
threads (1B)) may be arranged in any configuration of jute threads (2), and/or
synthetic bulk textured yarn (3), and/or composite yarn (3A), and/or stiff yarn (4).
In a further embodiment (Figure 4B), warp threads (1B) (or weft threads (1C)) are
arranged in a pattern that comprises at least two threads 5 of jute (2) being
positioned immediately next to each other. In this embodiment, the weft threads
(1C) (or warp threads (1B)) may be arranged in any configuration of jute threads
(2), and/or synthetic bulk textured yarn (3), and/or composite yarn (3A), and/or
stiff yarn (4).
10
In a still further embodiment (Figure 4C), the warp threads (1B) (or weft threads
(1C)) are arranged in a pattern that comprises at least two threads of synthetic
bulk textured yarn (3) being positioned immediately next to each other. In this
embodiment, the weft threads (1C) (or warp threads (1B)) may be arranged in any
15 configuration of jute threads (2), and/or synthetic bulk textured yarn (3), and/or
composite yarn (3A), and/or stiff yarn (4).
In yet further embodiment (Figure 4D), the warp threads (1B) (or weft threads
(1C)) are arranged in a pattern that comprises at least two threads of composite
20 yarn (3A) being positioned immediately next to each other. In this embodiment,
the weft threads (1C) (or warp threads (1B)) may be arranged in any configuration
of jute threads (2), and/or synthetic bulk textured yarn (3), and/or composite yarn
(3A), and/or stiff yarn (4).
11
In further embodiment (Figure 4L), the warp threads (1B) (or weft threads (1C))
are arranged in a pattern that comprises at least two threads of stiff yarn (4) being
positioned immediately next to each other. In this embodiment, the weft threads
(1C) (or warp threads (1B)) may be arranged in any configuration 5 of jute threads
(2), and/or synthetic bulk textured yarn (3), and/or composite yarn (3A), and/or
and stiff yarn (4).
In another embodiment (Figure 4F), the warp threads (1B) (or weft threads (1C))
10 are arranged in the following thread pattern: a stiff yarn (4), followed by a jute
yarn, followed by a composite yarn (3A). In this embodiment, the weft threads
(1C) (or warp threads (1B)) also may follow the same thread patters: a stiff yarn
(4), followed by a jute yarn (2), followed by a composite yarn (3A).
15 In another embodiment, the following threat pattern is disclosed: all warp threads
are synthetic bulk textured yarn (3) (Figure 4G) or composite yarn (3A) (Figure
4H) and all weft threads are made of jute (2).
In another embodiment, the warp threads (1B) (or weft threads (1C)) are arranged
20 in the following thread pattern: a stiff yarn (4), followed by a jute yarn (2) (Figure
4I), or a composite yarn (3A) followed by a jute yarn (2) (Figure 4J), or a
synthetic bulk textured yarn (3) followed by jute yarn (Figure 4K). In this
12
embodiment, the weft threads (1C) (or warp threads (1B)) may also follow the
same respective thread patterns (Figures 4I, 4J, and 4K).
In on more embodiment, any pattern in which the warp and weft threads (1B, 1C)
of the fabric (1A) are arranged extends over a part of or entire 5 width or length of
fabric (1A).
It should be noted that the fabric of the invention is such that any of the warp or
weft threads (1B, 1C) are treated with or have in-built additives such as anti10
fungal or anti-rodent agents.
The fabric (1A) of the invention may have any of the aforementioned patterns to
extend over a part of or the entire width or length of fabric (1A).
15 The invention also discloses a bag (1) made from the aforementioned woven
fabric (1A) having warp and weft threads (1B, 1C) such that some or all of either
weft or warp threads (1B, 1C), or both, of fabric (1A) are made threads selected
from a group comprising jute threads (2), synthetic bulk textured yarn (3), and
stiff yarn(4), or a composite yarn (3A) made from synthetic bulk textured yarn (3)
20 and stiff yarn (4). Further, bag can be made from flat fabric by side way folding
and stitching at two sides in L shape or U shape stitching of overlaid fabric piece.
13
According to the scope of the invention the bag (1) is made from fabric (1A) in
which warp threads (1B) or weft threads (1C) are arranged in a pattern that
comprises alternatingly positioned threads of jute (2) and synthetic bulk textured
yarn (3).
5
According to the scope of the invention the bag (1) is made from fabric (1A) in
which warp threads (1B) or weft threads (1C) are arranged in a pattern that
comprises alternatingly positioned threads of jute (2) and composite yarn (3A).
10 Further, it is also in the scope of the invention the bag (1) is made from fabric
(1A) in which warp threads (1B) or weft threads (1C) are arranged in a pattern
that comprises at least two threads of jute (2) being positioned immediately next
to each other.
15 Still further, it is also in the scope of the invention the bag (1) is made from fabric
(1A) in which warp threads (1B) or weft threads (1C) are arranged in a pattern
that comprises at least two threads of synthetic bulk textured yarn (3) being
positioned immediately next to each other.
20 Furthermore, it is also in the scope of the invention the bag (1) is made from
fabric (1A) in which warp threads (1B) or weft threads (1C) are arranged in a
pattern that comprises at least two threads of composite yarn (3A) being
positioned immediately next to each other.
14
It is also in the scope of the invention the bag (1) is made from fabric (1A) in
which warp threads (1B) or weft threads (1C) are arranged in a pattern that
comprises at least two threads of stiff yarn (3A) being positioned immediately
next 5 to each other.
Finally, it is in the scope of the bag of the invention the bag (1) is made from
fabric (1A) in which any of the warp threads (1B) and/or weft threads (1C) are
treated with or have in-built additives such as anti-fungal or anti-rodent agents.
10 Also, in the fabric used for the bag, both or either one of SBTY (3) and stiff yarn
(4) may have inorganic content and/or colour content and/or functional additive
content.
In another aspect of the invention a method of making woven fabric (1A) having
15 warp and weft threads (1B, 1C) is disclosed. A key feature of the method of
invention is that it comprises the step of selecting for warp and weft threads (1B,
1C) from a group comprising jute threads (2), synthetic bulk textured yarn (3),
and stiff yarn (4), or a composite yarn (3A) made from synthetic bulk textured
yarn (3) and stiff yarn (4). The method for making of bag according to invention
20 can be carried such that the jute yarn bobbins, the bulk textured yarn bobbins, the
bobbins of the stiff yarn, and the bobbins of the composite yarn are arranged in
the warp creel and the according to required fabric pattern, the weft yarns carrying
15
bobbins to produce the required fabric pattern as disclosed herein are placed in the
shuttles, weaving being performed on loom, preferably circular loom.
In a further aspect of the method of invention, following the step of selecting warp
and weft threads (1B, 1C), a further step is provided of arranging 5 warp or weft
threads (1B, 1C) in a pattern that comprises alternatingly positioned threads of
jute (2) and synthetic bulk textured yarn (3).
In a still further step of the method of invention, following the step of selecting
10 warp and weft threads (1B, 1C), a further step is provided of arranging warp or
weft threads (1B, 1C) in a pattern that comprises alternatingly positioned threads
of jute (2) and composite yarn (3A).
In one aspect of the method of the invention, in the step of arranging warp threads
15 (1B) or weft threads (1C), respective threads (1B, 1C) are arranged in a pattern
that comprises at least two threads of jute (2) being positioned immediately next
to each other.
In another aspect of the method of invention, in the step of arranging warp threads
20 (1B) or weft threads (1C), respective threads (1B, 1C) are arranged in a pattern
that comprises at least two threads of synthetic bulk structured yarn (3) being
positioned immediately next to each other.
16
In yet another aspect of the method of invention, in the step of arranging warp
threads (1B) or weft threads (1C), respective threads (1B, 1C) are arranged in a
pattern that comprises at least two threads of composite yarn (3A) being
positioned immediately next to each other.
5
In one more aspect of the method of invention to make a bag, for the fabric that is
used to make the bag, any of the warp or weft threads (1B, 1C) are treated with or
have in-built additives such as anti-fungal or anti-rodent agents.
10 In one more aspect of the method of the invention, in the fabric used for making
the bag, both or either one of SBTY(3) and stiff yarn(4) may have inorganic
content and/or colour content and/or functional additive content.
The woven fabric (1A) according to the invention has jute yarn (2) of up to 80%
15 by weight measured in grams per square meter (gsm), synthetic bulk textured yarn
(3) in the weight proportion of up to 20 to 40% of the weight (gsm) of fabric (1A),
and the stiff yarn (4) when used in the composite yarn (3A) in the weight
proportion of up to 20% of the weight (gsm) of the fabric (1A).
20 As a particular case, as shown in the illustrated figures 4G and 4H, the weft (1C)
is entirely jute yarn (2) and warp yarn (1B) is either synthetic bulk textured yarn
(3) or composite yarn (3A).
17
It has been found that the bag (1) made from the woven fabric (1A) disclosed here
is advantageously about 38 to 52% lower in weight than the conventional jute bag.
Further it has also been found that composite fabric disclosed here has a tensile
strength about 15 to 35% higher than the conventional jute fabric.
5
The fabric rolls of about 1000 to 1500 meters are made on circular weaving loom.
These fabric roll can be then taken through manual route of fabric cutting and bag
making on stitching machine. Alternatively, the fabric rolls are placed on
unwinding section of specially design bag conversion machine wherein the fabric
10 of desired bag length are cut by thermo-cutter and fabric cut length is passed
through the folding and stitching station. Using modern circular looms, it is found
that the rate of production of the composite fabric of the invention is quite high
while producing better fabric quality compared to conventional flat jute loom.
15 The produced bag can have desired width range from 250 to 1000 mm, bag length
is as per the user demand.
The fabric of the invention may be used to make storage bags or it may serve as
furnishing fabric depending on fabric construction.
20
While the above description contains much specificity, these should not be
construed as limitation in the scope of the invention, but rather as an
exemplification of the preferred embodiments thereof. It must be realized that
18
modifications and variations are possible based on the disclosure given above
without departing from the spirit and scope of the invention. Accordingly, the
scope of the invention should be determined not by the embodiments illustrated,
but by the appended claims and their legal equivalents.

We claim:
1. A woven fabric (1A) having warp and weft threads (1B, 1C), said fabric
being a flat fabric or a tubular fabric, characterised in that some or all of
either weft or warp threads (1B, 1C), or both, of said fabric (1A) are made
of threads selected from a group comprising jute threads 5 (2), synthetic
bulk textured yarn threads (3), and stiff yarn threads (4), or a composite
yarn threads (3A) made from synthetic bulk textured yarn (3) and stiff
yarn (4).
10 2. The fabric (1A) as claimed in claim 1, wherein said warp threads (1B) are
arranged in a pattern that comprises alternatingly positioned said threads
(2) of jute and said threads of synthetic bulk textured yarn (3).
3. The fabric as claimed in claim 1, wherein said warp threads (1B) are
15 arranged in a pattern that comprises alternatingly positioned said threads
of jute (2) and said threads of composite yarn (3A).
4. The fabric as claimed in claim 1, wherein said warp threads (1B) are
arranged in a pattern that comprises alternatingly positioned said threads
20 of jute (2) and said threads of stiff yarn (4).
20
5. The fabric (1A) as claimed in claim 1, wherein said warp threads (1B) are
arranged in a pattern that comprises said at least two threads of jute (2)
being positioned immediately next to each other.
6. The fabric (1A) as claimed in claim 1, wherein said warp 5 threads (1B) are
arranged in a pattern that comprises at least two threads of said synthetic
bulk textured yarn (3) being positioned immediately next to each other.
7. The fabric (1A) as claimed in claim 1, wherein said warp threads (1B) are
10 arranged in a pattern that comprises at least two threads of said composite
yarn (3A) being positioned immediately next to each other.
8. The fabric (1A) as claimed in claim 1, wherein said weft threads (1C) are
arranged in a pattern that comprises alternatingly positioned said threads
15 of jute (2) and said synthetic bulk textured yarn (3).
9. The fabric (1A) as claimed in claim 1, wherein said weft threads (1C) are
arranged in a pattern that comprises alternatingly positioned said threads
of jute (2) and said composite yarn (3A).
20
10. The fabric (1A) as claimed in claim 1, wherein said weft threads (1C) are
arranged in a pattern that comprises alternatingly positioned said threads
of jute (2) and said stiff yarn (4).
21
11. The fabric (1A) as claimed in claim 1, wherein said weft threads (1C) are
arranged in a pattern that comprises said at least two threads of jute (2)
being positioned immediately next to each other.
12. The fabric (1A) as claimed in claim 1, wherein said weft 5 threads (1C) are
arranged in a pattern that comprises at least two threads of said synthetic
bulk textured yarn (3) being positioned immediately next to each other.
13. The fabric (1A) as claimed in claim 1, wherein said weft threads (1C) are
10 arranged in a pattern that comprises at least two threads of said composite
yarn (3A) being positioned immediately next to each other.
14. The fabric (1A) as claimed in claim 1, wherein said weft threads (1C) are
arranged in a pattern that comprises at least two threads of said stiff yarn
15 (4) being positioned immediately next to each other.
15. The fabric (1A) as claimed in claim 1, wherein said warp threads (1B) are
arranged in a pattern comprising at least one jute thread (2), followed by at
least one synthetic bulk yarn thread (3), followed by at least one stiff yarn
20 (4).
16. The fabric (1A) as claimed in claim 1, wherein said warp threads (1B) are
arranged in a pattern comprising at least one jute thread (2), followed by at
22
least one composite yarn thread (3A), followed by at least one stiff yarn
(4).
17. The fabric (1A) as claimed in claim 1, wherein said weft threads (1C) are
arranged in a pattern comprising at least one jute thread (5 2), followed by at
least one synthetic bulk yarn thread (3), followed by at least one stiff yarn
(4).
18. The fabric (1A) as claimed in claim 1, wherein said weft threads (1C) are
10 arranged in a pattern comprising at least one jute thread (2), followed by at
least one composite yarn thread (3A), followed by at least one stiff yarn
(4).
19. The fabric (1A) as claimed in claim 1, wherein said weft threads (1C) are
15 made of jute yarn (2) and said warp threads (1B) are made of either said
synthetic bulk textured yarn (3) or said composite yarn (3A).
20. The fabric (1A) as claimed in any of claims 2 to 19, wherein said pattern
extends over a part of width or length of said fabric (1A).
20
21. The fabric as claimed in any of claims 2 to 19, wherein said pattern
extends over entire width or length of said fabric (1A).
23
22. The fabric (1A) as claimed in any of claims 1 to 21, wherein said
composite yarn (3A) is made by twisting- or mixing- or mingling- together
of said synthetic bulk textured yarn (3) and said stiff yarn (4).
23. The fabric (1A) as claimed in any of claims 1 to 22, wherein 5 said stiff yarn
(4) may be slit film tape yarn, folded tape, fibrillated tape, or any type of
monofilament yarn or similar.
24. The fabric (1A) as claimed in any of claims 1 to 23, wherein said synthetic
10 bulk textured yarn (3) and/or said stiff yarn (4) may have inorganic content
and/or colour content, and/or functional additive content.
25. A bag (1), characterised in that said bag is made from a flat or tubular
woven fabric (1A) having warp and weft threads (1B, 1C), characterised in
15 that some or all of either weft or warp threads (1B, 1C), or both, of said
fabric (1A) are made threads selected from a group comprising jute
threads (2), synthetic bulk textured yarn (3), and stiff yarn (4), or a
composite yarn (3A) made from synthetic bulk textured yarn (3) and stiff
yarn (4).
20
26. The bag (1) as claimed in claim 25, wherein said warp threads (1B) and/or
said weft threads (1C) are arranged in a pattern that comprises
24
alternatingly positioned said threads of jute (2) and said synthetic bulk
textured yarn (3).
27. The bag (1) as claimed in claim 25, wherein said warp threads (1B) and/or
said weft threads (1C) are arranged in a pattern 5 that comprises
alternatingly positioned said threads of jute (2) and said composite yarn
(3A).
28. The bag (1) as claimed in claim 25, wherein said warp threads (1B) and/or
10 said weft threads (1C) are arranged in a pattern that comprises
alternatingly positioned said threads of jute (2) and said stiff yarn (4).
29. The bag (1) as claimed in claim 25, wherein said warp threads (1B) and/or
said weft threads (1C) are arranged in a pattern that comprises said at least
15 two threads of jute (2) being positioned immediately next to each other.
30. The bag (1) as claimed in claim 25, wherein said warp threads (1B) and/or
said weft threads (1C) are arranged in a pattern that comprises said at least
two threads of synthetic bulk textured yarn (3) being positioned
20 immediately next to each other.
31. The bag (1) as claimed in claim 25, wherein said warp threads (1B) and/or
said weft threads (1C) are arranged in a pattern that comprises said at least
25
two threads of composite yarn (3A) being positioned immediately next to
each other.
32. The bag (1) as claimed in claim 25, wherein said warp threads (1B) and/or
said weft threads (1C) are arranged in a pattern that comprises 5 said at least
two threads of stiff yarn (4) being positioned immediately next to each
other.
33. The bag (1) as claimed in claim 25, wherein said warp threads (1B) and/or
10 said weft threads (1C) are arranged in a pattern that comprises a jute thread
(2) followed by a synthetic bulk textured thread (3) followed by a stiff
yarn (4).
34. The bag (1) as claimed in claim 25, wherein said warp threads (1B) and/or
15 said weft threads (1C) are arranged in a pattern that comprises a jute thread
(2) followed by a stiff yarn (4), followed by synthetic bulk textured thread
(3).
35. The bag (1) as claimed in claim 25, wherein said weft threads (1C) are
20 made of jute yarn (2) and said warp threads (1B) are made of either said
synthetic bulk textured yarn (3) or said composite yarn (3A).
26
36. The bag (1) as claimed in any of claims 25 to 35, wherein said pattern
extends over a part of width and/or length of said fabric (1A).
37. The bag (1) as claimed in any of claims 25 to 36, wherein said pattern
extends over entire width or length and/or 5 said fabric (1A).
38. The bag (1) as claimed in any of claims 25 to 36, wherein said composite
yarn (3A) is made by twisting- or mixing- or mingling- together of said
synthetic bulk textured yarn (3) and said stiff yarn (4).
10
39. The bag (1) as claimed in any of claims 25 to 37 wherein said stiff yarn (4)
may be slit film tape yarn, folded tape, fibrillated tape, or any type of
monofilament yarn or similar.
15 40. The bag (1) as claimed in any of claims 25 to 38 wherein said synthetic
bulk textured yarn (3) and/or said stiff yarn (4) may have inorganic content
and/or colour content, and/or functional additive content.
41. A method of making woven fabric (1A), said fabric being flat fabric or
20 tubular and having warp and weft threads (1B, 1C), characterised in that
said method comprises the step of selecting for warp and weft threads (1B,
1C) from a group comprising jute threads (2), synthetic bulk textured yarn
27
(3), and stiff yarn (4), or a composite yarn (3A) made from synthetic bulk
textured yarn (3) and stiff yarn (4).
42. The method as claimed in claim 41, wherein following said step of
selecting warp and weft threads (1B, 1C), a step follows 5 of arranging said
warp and/or weft threads (1B, 1C) in a pattern that comprises alternatingly
positioned said threads of jute (2) and said composite yarn (3A).
43. The method as claimed in claim 41, wherein following said step of
10 selecting warp and weft threads (1B, 1C), a step follows of arranging said
warp and/or weft threads (1B, 1C) in a pattern that comprises alternatingly
positioned said threads of jute (2) and said synthetic bulk textured yarn
(3).
15 44. The method as claimed in claim 41, wherein following said step of
selecting warp and weft threads (1B, 1C), a step follows of arranging said
warp and/or weft threads (1B, 1C) in a pattern that comprises alternatingly
positioned said threads of jute (2) and said stiff yarn (4).
20 45. The method as claimed in claims 41, wherein in said step of arranging said
warp threads (1B) and/or said weft threads (1C), respective threads (1B,
1C) are arranged in a pattern that comprises said at least two threads of
jute (2) being positioned immediately next to each other.
28
46. The method as claimed in claims 41, wherein in said step of arranging said
warp threads (1B) and/or said weft threads (1C), respective threads are
arranged in a pattern that comprises said at least two threads of synthetic
bulk structured yarn (3) being positioned immediately next 5 to each other.
47. The method as claimed in claims 41, wherein in said step of arranging said
warp threads (1B) and/or said weft threads (1C), respective threads are
arranged in a pattern that comprises said at least two threads of composite
10 yarn (3A) being positioned immediately next to each other.
48. The fabric (1A) as claimed in any of claims 1 to 24, wherein jute threads
(2) are in a weight proportion (gsm) of up to 80% of the weight (gsm) of
said fabric (1A), and said synthetic bulk textured yarn (3) is in a weight
15 proportion (gsm) of up to 20% of the weight (gsm) of said fabric (1A).
49. The fabric as claimed in any of claims 1 to 24, wherein any of the warp or
weft threads (1B, 1C) are treated with or have in-built additives such as
anti-fungal or anti-rodent agents.

50. The bag (1) as claimed in any of claims 25 to 40, wherein any of the warp
or weft threads (1B, 1C) are treated with or have in-built additives such as
anti-fungal or anti-rodent agents.

51. The method as claimed in any of claims 40 to 47, wherein said composite
yarn (3A) is made by twisting-, mixing-, or mingling- together of said
synthetic bulk textured yarn (3) and said stiff yarn (4).
52. The method as claimed in any of claims 40 to 47 and 5 51, wherein any of
the warp or weft threads are treated with or have in-built additives such as
anti-fungal or anti-rodent agents.
53. The fabric as claimed in claims 1 to 24 and 48 and 49, wherein the weave
10 of said fabric is plain or twill or anti-slip, or a combination of any of these
methods.