1. A High Tensile Strength Acrylonitrile Butadiene Styrene sleeves with Styrene Acrylonitrile Resin and Glass Fiber comprise: 81-98 % w/w Acrylonitrile Butadiene Styrene-(ABS) granules, master batch and 1-12 % w/w Styrene Acrylonitrile Resin-(SAN) including 1-7 % w/w Glass Fiber to form high strength Cops/Bobbin/Pirn sleeves.

2. The High Tensile Strength Acrylonitrile Butadiene Styrene sleeves with Styrene Acrylonitrile Resin and Glass Fiber as claimed in claim 1, wherein the thickness of sleeves ranges from 0.35 to 0.5 mm.

3. The High Tensile Strength Acrylonitrile Butadiene Styrene sleeves with Styrene Acrylonitrile Resin and Glass Fiber as claimed in claim 1, wherein the Acrylonitrile Butadiene Styrene-(ABS) Cops/Bobbin/Pirn sleeves are manufactured through plastic extrusion process.

4. The High Tensile Strength Acrylonitrile Butadiene Styrene sleeves with Styrene Acrylonitrile Resin and Glass Fiber as claimed in claim 1, wherein a tensile strength of the Acrylonitrile Butadiene Styrene Cops/Bobbin/Pirn sleeves ranges from 575-620 Kg/cm2 with zero percentage of elongation. Dated this 11th day of October, 2022

Description:

FORM 2
THE PATENTS ACT 1970
(39 of 1970)
&
The Patents Rules, 2003
COMPLETE SPECIFICATION
(See section 10 and rule 13)

1. TITLE OF THE INVENTION:
‘A HIGH TENSILE STRENGTH ACRYLONITRILE BUTADIENE STYRENE SLEEVES WITH STYRENE ACRYLONITRILE RESIN AND GLASS FIBER’

2. APPLICANT:

(A) Siddhi Engineers
(B) Indian
(C) “SIDDHI HOUSE”
6, Virkunj Society,
Near VidyanagarSchool,
Usmanpura, Ahmedabad
Gujarat-380014

3. PREAMBLE TO THE DESCRIPTION:
PROVISIONAL
The following specification describes the invention.
þ COMPLETE
The following specification particularly describes the invention and the manner in which it is to be performed.

Field of the Invention

The present invention relates to a high tensile strength Acrylonitrile Butadiene Styrene-(ABS) sleeves with Styrene Acrylonitrile Resin-(SAN) and Glass Fiber. More particularly, the present invention relates to an optimized composition for manufacturing ahigh tensile strength Acrylonitrile Butadiene Styrene-(ABS) Cops/Bobbin/Pirn sleeves to overcome the elongation.

Background of the Invention

Nowadays, man-made fibers or synthetic fibers made from Polyester or Nylon chips are commonly in use. Synthetic yarns are generally formed by extruding materials through spinnerets into air and water to form a thread. Man-made fibers are generally more durable than most natural fibers and offer a range of desirable characteristics which often make them suited to high performance and technical end application. There are various kinds of synthetic yarns available in the markets such as polyester, nylon, rayon and many more. However the two main varieties are Polyester and Nylon.

For manufacturing yarns from the chips, an extrusion plant is used which produces flat yarn. The flat yarns continuously wound on Cops/Bobbin/Pirn by draw twisting process on draw twisting machine & splitting machines. Large numbers of Cops/Bobbin/Pirn are used simultaneously for the purpose of yarn winding. During this process the circumferential pressure of yarn on Cops/Bobbin/Pirn is exerted. These yarns undergo with different types of process at spinning stage namely draw twisting or splitting. In spinning process, slivers are fed into machines with rollers that draw out the strands, making them longer and thinner, and spindles that insert the amount of twist necessary to hold the fibres together. Tightness of the twist determines the strength of the yarn, although too much twist may eventually cause weakening and breakage. When the spirals formed by twisted yarns are similar in slope to the central portion of the letter Z, the yarns are described as Z-twists; when the spirals conform in direction to the central portion of the letter S, the yarns are described as S-twist. Crepe yarns, producing a crinkled effect in fabrics, are made with a very high degree of twist, producing a kink. Shadow effects can be produced in finished fabrics by the use of yarns combining opposing twists, producing differing light reflections. The spinning process is completed by winding the yarn on spools or Cops/Bobbin/Pirn.

The Acrylonitrile Butadiene Styrene-(ABS) sleeves are used to cover metal Cops/Bobbin/Pirn. It is a protective cover for metal tubes. In current state of art, Cops/Bobbin/Pirn sleeves are manufactured from engineering plastic polymer like Acrylonitrile Butadiene Styrene-(ABS). The Acrylonitrile Butadiene Styrene-(ABS) polymer is widely used as an engineering plastic which has high impact strength, high mechanical strength, good extrudibility, good moldability, and good aesthetics. The Acrylonitrile Butadiene Styrene-(ABS) is widely used in house hold white goods as well as in automobile and general engineering industries.

During the twisting and splitting of yarns, the sleeves get elongated either on top side or bottom side of cop due to the circumferential pressure of yarn on Cops/Bobbin/Pirn. To avoid elongation of the sleeve, higher creep/fatigue is required. The metal Cops/Bobbin/Pirn with Acrylonitrile Butadiene Styrene-(ABS) sleeves is used for several cycles in the textile industry. If during the repeated uses of Cops/Bobbin/Pirn with sleeve, there is a possibility of cracks or elongation due to lower mechanical properties.

Due to the elongation and cracking of the sleeves, functional performance of the Cops/Bobbin/Pirn is affected and quality of yarn is also affected during the unwinding of the yarn. Moreover sleeves which are made of from only Acrylonitrile Butadiene Styrene-(ABS) material, does not resist the elongation and crack and does not provides better gripping of yarn on the Cops/Bobbin/Pirn.

Therefore there is need to blend Glass Fibers and other materials to produce sleeves which overcome all the problems mentioned as above.

Object of Invention
The main object of the present invention is to provide a high tensile strength Acrylonitrile Butadiene Styrene-(ABS) sleeves by compounding Styrene Acrylonitrile Resin-(SAN) and Glass Fiber.
Another object of the present invention is to provide optimized compounding ratio for manufacturing a high tensile strength Acrylonitrile Butadiene Styrene-(ABS) sleeves with Styrene Acrylonitrile Resin-(SAN) and Glass Fiber to overcome the elongation.
Further object of the present invention is to provide a Cops/Bobbin/Pirn sleeves for yarn winding application.
Further object of the present invention is to provide a composition for manufacturing of Cops/Bobbin/Pirn sleeve that withstand creep load/pressure.
Yet another object of the present invention is to provide matt finish (Orange peel) surface of Cops/Bobbin/Pirn sleeves.
Yet another object of the present invention is to provide Acrylonitrile Butadiene Styrene-(ABS) Cops/Bobbin/Pirn sleeves for better gripping on metal Cops/Bobbin/Pirn.
Yet another object of the present invention is to provide durable and economical Acrylonitrile Butadiene Styrene-(ABS) Cops/Bobbin/Pirn sleeves.
Other objects and advantages of the present disclosure will bemore apparent from the following description which is not intendedto limit the scope of the present disclosure.
Summary of the Invention
The present invention relates to a high tensile strength Acrylonitrile Butadiene Styrene-(ABS) sleeves with Styrene Acrylonitrile Resin-(SAN) and Glass Fiber to overcome elongation. The present invention provides composition for Acrylonitrile Butadiene Styrene-(ABS) Cops/Bobbin/Pirn sleeves to prevent elongation of sleeves while winding yarn on Cops/Bobbin/Pirn. The Composition includes Acrylonitrile Butadiene Styrene-(ABS) granules, master batch, Styrene Acrylonitrile Resin-(SAN) with Glass Fiber to improve the tensile strength of sleeve. In present invention Styrene Acrylonitrile Resin-(SAN) is provided to improve strength of sleeves. While Glass Fiber provides rough surface on outer and inner surface of the sleeves which furnish better grip on metal tube and better gripping to yarn. This composition of sleeves provides better functional performance, better gripping and also resists elongation of the Cops/Bobbin/Pirn.

Detailed Description of the Invention

Before explaining the present invention in detail, it is to be understood that the invention is not limited in its application to the details of the construction and arrangement of parts illustrated. The invention is capable of other embodiments, as described above and of being practiced or carried out in a variety of ways. It is to be understood that the phraseology and terminology employed herein is for the purpose of description and not to limitation. The invention may have various embodiments and they may be performed as described in the following pages of the complete specification.

In present invention, Acrylonitrile Butadiene Styrene-(ABS) is a thermoplastic polymer which provides favorable mechanical properties such as impact resistance, toughness and rigidity when compared with other common polymers. Acrylonitrile Butadiene Styrene-(ABS) resin is prepared by graft polymerizing an aromatic vinyl compound as a representative of a styrene monomer and an unsaturated nitrile compound of the Acrylonitrile monomer in the presence of butadiene-based rubber polymer by emulsion polymerization. Acrylonitrile Butadiene Styrene-(ABS) is hard, rigid, and tough, even at low temperatures. Most natural Acrylonitrile Butadiene Styrene-(ABS) resins are translucent to opaque, and they can be pigmented to almost any color and can improve antistatic properties by using special master batch. Grades are available for injection molding, extrusion, blow molding, foam molding, and thermoforming. Molding and extrusion grades provide surface finishes ranging from satin to high gloss. Some Acrylonitrile Butadiene Styrene-(ABS) grades are designed specifically for electroplating. Their molecular structure is such that the plating process is rapid, easily controlled, and economical.

Further, Masterbatch (MB) is (a solid additive for plastic) used for coloring plastics (color masterbatch) or imparting other properties to plastics (additive masterbatch).Masterbatch is a concentrated mixture of pigments and/or additives encapsulated during a heat process into a carrier resin which is then cooled and cut into a granular shape. Masterbatch allows the processor to color raw polymer economically during the plastics process.Masterbatch increases volumetric output.

Styrene Acrylonitrile Resin-(SAN) is a copolymer plastic consisting of Styrene and Acrylonitrile. The copolymer has a glass transition temperature greater than 100 °C owing to the Acrylonitrile units in the chain. It is structurally related to Acrylonitrile Butadiene Styrene-(ABS) plastic, where polybutadiene is copolymerized with Styrene Acrylonitrile Resin-(SAN) to give a much tougher material.

Further, Glass fiber is a material consisting of numerous extremely fine fibers of glass. Glass fiber is formed when thin strands of silica-based or other formulation glass are extruded into many fibers with small diameters.

Composition for sleeves includes Acrylonitrile Butadiene Styrene-(ABS) which is mixed with Styrene Acrylonitrile Resin-(SAN) and Glass Fiber in form of granules. Optimized composition for Acrylonitrile Butadiene Styrene-(ABS) sleeves comprises 81-98 % w/w Acrylonitrile Butadiene Styrene-(ABS) granules, 1-12 % w/w Styrene Acrylonitrile Resin-(SAN) including ¬¬¬¬1-7 % w/w Glass Fiber to form high strength Cops/Bobbin/Pirn sleeves. The thickness of sleeves ranges from 0.35 to 0.5mm with diameter in the range of 44 mm to 51 mm.

By adding Styrene Acrylonitrile Resin-(SAN) with Glass Fiber improves tensile strength of Acrylonitrile Butadiene Styrene-(ABS) sleeves. Styrene Acrylonitrile Resin-(SAN) provides better strength and Glass Fiber provides rough surface to the Acrylonitrile Butadiene Styrene-(ABS) sleeves on inner side and outer side.
While manufacturing man made synthetic yarns like Polyester and Nylon, it requires to undergo spinning or splitting operations. The spinned or splitted yarn is wound on Cops/Bobbin/Pirn. During the winding of spinned or splitted yarn, very high circumferential pressure is exerted on Cops/Bobbin/Pirn. Due to this high circumferential pressure, the Cops/Bobbin/ Pirn sleeve get elongated either from top or bottom side. By providing mixture of Acrylonitrile Butadiene Styrene-(ABS) with Styrene Acrylonitrile Resin-(SAN) and Glass Fiber increases the functional performance of Cops/Bobbin/Pirn sleeve. As Styrene Acrylonitrile Resin-(SAN) improves the tensile strength of the Cops/Bobbin/Pirn sleeves which will resist the compression of Cops/Bobbin/Pirn sleeves and prevent elongation. Moreover by adding glass fibres to the Acrylonitrile Butadiene Styrene-(ABS) and Styrene Acrylonitrile Resin-(SAN) composition, it reinforce Acrylonitrile Butadiene Styrene-(ABS) and Styrene Acrylonitrile Resin-(SAN) and improve mechanical properties as well as it provides rough surface on both inside and outside surface of the sleeve which will provide better gripping on the metal tube. Due to inside rough surface, it prevents elongation of sleeve and outside rough surface prevents slippage of yarns during first layer and consequence layers also.
The Acrylonitrile Butadiene Styrene-(ABS) sleeves are manufactured through plastic extrusion process wherein granules are mixed with color master batch and feed through hopper into the barrel of the extruder. The material is gradually melted by the mechanical energy generated by turning screws and by heaters arranged along the barrel. The molten polymer is then forced into a die, which shapes the polymer as well as Styrene Acrylonitrile Resin-(SAN) with glass fibre master batch that hardens during cooling. The continuous output of sleeve is subjected to long length cutting on extrusion machine followed by precise length cutting on special cutting machine. Then, it is subjected to one end bending called furling.
After winding of yarn on Cops/Bobbin/Pirn said Cops/Bobbin/Pirn are kept for long period of time for different applications. At this time due to constant load or stress of yarn on Cops/Bobbin/Pirn, conventional Cops/Bobbin/Pirns are permanently deformed due to creep pressure/load. Cops/Bobbin/Pirns undergoes a time dependent increase in length, which could be dangerous while in service. Here, Creep pressure/load is a time- dependent deformation under a certain applied load.
The Cops/Bobbin/Pirn sleeves which are manufactured from Acrylonitrile Butadiene Styrene-(ABS) with Styrene Acrylonitrile Resin-(SAN) and Glass Fiber have higher tensile strength and resist high creep load/ pressure compared to other compositions. For instance, the sleeves which are manufactured from raw materials have the tensile strength in the range of 225-350 Kg/cm^2. In contrast, the Cops/Bobbin/Pirn sleeves, manufactured from Acrylonitrile Butadiene Styrene-(ABS) with Styrene Acrylonitrile Resin-(SAN) and Glass Fiber have higher tensile strength in the range of 350-450 Kg/cm^2.
The present invention is illustrated more in details in the following experimental examples. The example describes and demonstrates the embodiments within the scope of the present invention. This example is given solely for the purpose of illustration and is not to be construed as limitations of the present invention, as many variations thereof are possible without departing from scope.
In present invention experiments was carried out on five samples of four compositions to measure Tensile strength in kg/cm^2 with % elongation. In the below experiment elongation refers to the percentage of stretch from the original length of the plastic sleeve to the point of failure, showing how ductile the plastic sleeve is.
Moreover the Percentage Elongation calculator computes the ratio of change in length to original length.
• IL = Initial Length.
• ?L = Change in Length.
% elongation = (?L/ IL) x 100
The result of the tensile strength in kg/cm^2 with % elongation is given below in detail:
In this experiment, the test of tensile strength in kg/cm^2 with % elongation for Acrylonitrile Butadiene Styrene-(ABS) Cops/Bobbin/Pirn sleeve was carried out on five samples of four compositions. The readings of the tensile strength in kg/cm^2 with % elongation for ABS (Acrylonitrile Butadiene Styrene), ABS (Acrylonitrile Butadiene Styrene) + SAN (Styrene Acrylonitrile Resin), ABS (Acrylonitrile Butadiene Styrene) + GF (Glass fibre) + SAN (Styrene Acrylonitrile Resin) and ABS (Acrylonitrile Butadiene Styrene) + GF (Glass fibre) were recorded that have been illustrated in below table:
Table-1

Sample No. ABS ABS + SAN ABS + GF WITH SAN ABS + GF WITH ABS
Tensile Strength in kg/cm2 % Elongation Tensile Strength in kg/cm2 % Elongation Tensile Strength in kg/cm2 % Elongation Tensile Strength in kg/cm2 % Elongation
1 509.86 16.06 513.05 2.60 575.15 0.00 489.46 0.00
2 519.34 11.80 521.36 4.60 580.25 0.00 491.55 0.00
3 522.06 11.16 535.03 10.30 598.45 0.00 504.76 0.00
4 534.69 18.36 545.33 3.20 605.91 0.00 526.31 0.00
5 545.17 10.82 561.05 1.80 619.72 0.00 541.81 0.00
Observation:
From the above table it can be seen that the Acrylonitrile Butadiene Styrene-(ABS) including Styrene Acrylonitrile Resin-(SAN) with Glass Fiber provides better tensile strength ranges from 575-620 kg/cm2 and zero % elongation as compared to other compositions.

Although the example as well as the process of preparation and use has been specifically described, it should be understood that variations in the preferred embodiment could be achieved by a person skilled in the art without departing from the scope of the invention. It is also to be understood that the present invention is given with the understanding that this invention is intended only to be illustrations without serving as a limitation on the scope of the invention as defined in the claims.
, Claims:We Claim: -
1. A High Tensile Strength Acrylonitrile Butadiene Styrene sleeves with Styrene Acrylonitrile Resin and Glass Fiber comprise:
81-98 % w/w Acrylonitrile Butadiene Styrene-(ABS) granules, master batch and 1-12 % w/w Styrene Acrylonitrile Resin-(SAN) including 1-7 % w/w Glass Fiber to form high strength Cops/Bobbin/Pirn sleeves.

2. The High Tensile Strength Acrylonitrile Butadiene Styrene sleeves with Styrene Acrylonitrile Resin and Glass Fiber as claimed in claim 1, wherein the thickness of sleeves ranges from 0.35 to 0.5 mm.

3. The High Tensile Strength Acrylonitrile Butadiene Styrene sleeves with Styrene Acrylonitrile Resin and Glass Fiber as claimed in claim 1, wherein the Acrylonitrile Butadiene Styrene-(ABS) Cops/Bobbin/Pirn sleeves are manufactured through plastic extrusion process.

4. The High Tensile Strength Acrylonitrile Butadiene Styrene sleeves with Styrene Acrylonitrile Resin and Glass Fiber as claimed in claim 1, wherein a tensile strength of the Acrylonitrile Butadiene Styrene Cops/Bobbin/Pirn sleeves ranges from 575-620 Kg/cm2 with zero percentage of elongation.
Dated this 11th day of October, 2022