KR100934271B1 - High tenacity composite textured yarn - Google Patents

Abstract

PURPOSE: High tenacity composite textured yarn is provided to offer high tenacity for deformation of the yarn due to internal force while offering good flexibility and wearability for a product including gloves, protective clothes, and socks. CONSTITUTION: High tenacity composite textured yarn(20) includes first core yarn(25), second core yarn(27), second polyester covering yarn or second aliphatic polyamide covering yarn(29). The first core yarn is made of first polyester covering yarn or first aliphatic polyamide covering yarn(23) covering the fiber yarn. The second core yarn is arranged with the first core yarn in parallel, and made of spandex yarn. The second polyester covering yarn or the second aliphatic polyamide covering yarn covers the first and the second core yarn by winding the surface of the first and the second surface of the core yarns.

Description

High tenacity composite textured yarn

Disclosed are a high strength composite workpiece and a knitted fabric comprising the same. In more detail, a high-strength composite processing including a first core yarn, a second core yarn, and a second covering yarn covering the first and second core yarns, each of which includes a twisted yarn and a first covering yarn, and a knitted fabric including the same. This is disclosed.

High-strength composite processing is used for various items including industrial gloves and protective clothing because of its strength, cutting resistance and elasticity. Conventional high-strength composite processing is used to cover the high-strength stainless steel fiber, glass fiber or aramid fiber yarn with an organic fiber yarn, or a core yarn consisting of a composite material of stainless steel fiber yarn or stainless steel fiber yarn and glass fiber yarn , Made of polyester fiber yarn covering the core yarn.

1 is a cross-sectional view schematically showing a conventional high strength composite machining. As shown in FIG. 1, the high strength composite work 10 includes a fiber yarn having high tensile strength, tear strength and cut resistance, such as stainless steel fiber yarn, glass fiber yarn or aramid fiber yarn 11, and organic fibers. Yarn, for example, has a structure in which polyester fiber yarn 13 is twisted and twisted. High-strength composite processing 10 having such a structure is inferior in the axial direction and the structure is simple to increase the strength, so the resistance to external forces such as tensile, tearing and cutting is inferior, especially stainless steel fiber yarn, glass If the fiber yarns or aramid fiber yarns 11 and the like fail to sustain the bending stress acting in the weaving or knitting process, they may break.

In addition, the knitted fabric comprising such a high strength composite processing is easily deformed form of stainless steel fiber, glass fiber or aramid fiber (11) when the external force is received, the twisting of each other, or damage to cut part It may not be effective.

Therefore, there is a need for a high strength composite machining that has high resistance to external forces such as tensile, tearing and cutting and is not easily deformed even under bending stress.

One aspect of the present invention is to provide a composite construction of a new structure having high strength characteristics.

Another aspect of the present invention is to provide a knitted fabric comprising the composite workpiece.

According to an aspect of the present invention, a single yarn or a polyester yarn of glass fiber yarn and an aramid fiber yarn, and a first polyester covering yarn covering the yarn by spirally wound on the surface of the sole or yarn yarn yarn Or a first core yarn consisting of a first aliphatic polyamide covering yarn; A second center yarn arranged side by side with the first center yarn and made of spandex fiber yarn; And a second polyester covering yarn or a second aliphatic polyamide covering yarn which spirally winds the surfaces of the first and second central yarns together to cover the first and second central yarns.

The single or braided twisted yarn may be twisted yarns having a twist of 50 to 1000 T / M (twist / meter).

The first and second polyester covering yarns or aliphatic polyamide covering yarns may be independently covering yarns having a twist of 50 to 3000 T / M.

The fiberglass yarn is 50 to 1000 denier, the aramid fiber yarn is 5 to 50 cc for the yarn (where cc is the "English cotton number" of the skein weighed in 1 pound, ie the number of 840 yards), for the filament 50 to 1500 denier, polyester covering yarn 5 to 50 cc for spun yarn, 50 to 1000 denier for filament, aliphatic polyamide covering yarn 5 to 50 cc for spun yarn, 50 to 1000 denier for filament, spandex fiber yarn 10 It may be a yarn having a thickness of 280 deniers.

The first and second polyester covering yarns include any one selected from polyethylene terephthalate, polytrimethylene terephthalate, and polybutylene terephthalate, and the first and second aliphatic polyamide covering yarns are nylon 6, It may be a covering yarn consisting of any one selected from nylon 66, nylon 6T, nylon 10, nylon 11, and nylon 12.

According to another aspect of the present invention, a knitted fabric comprising the composite workpiece is provided.

The knitted fabric may be a glove or sock.

According to an aspect of the present invention, a first core yarn consisting of a twisted yarn and a first covering yarn to withstand tension, tearing and cutting, a second core yarn composed of spandex fiber yarn to provide elasticity, and the first and second core yarn By providing a high-strength composite processing including a second covering yarn to provide a soft touch by covering the, it can be provided at the same time excellent protective properties and comfort when used in products such as industrial gloves, protective clothing and socks.

Hereinafter, with reference to the accompanying drawings will be described in detail a high strength composite construction according to an embodiment of the present invention. Here, it should be noted that the thickness and width of each layer or region shown in the drawings are exaggerated for clarity.

Composite processing according to an aspect of the present invention

As a single yarn of a glass fiber yarn or a yarn yarn of a glass fiber yarn and an aramid fiber yarn, and a first polyester covering yarn or a first aliphatic polyamide covering yarn which covers the yarn by spirally wound on the surface of the sole or yarn yarn yarn. First center yarn made up;

A second center yarn arranged side by side with the first center yarn and made of spandex fiber yarn; And

And a second polyester covering yarn or a second aliphatic polyamide covering yarn covering the first and second central yarns together by spirally winding the surfaces of the first and second central yarns.

2 is a cross-sectional view schematically showing a composite processing according to an embodiment of the present invention. Referring to FIG. 2, the composite workpiece according to an embodiment of the present invention includes a first central yarn 25, a second central yarn 27, and a second covering yarn 29.

The first center yarn 25 is a single twisted yarn of glass fiber yarn or a twisted yarn twisted yarn 21 of glass fiber yarn and aramid fiber yarn, and a first polyester covering the twisted yarn by spirally wound on the surface of the single yarn or twisted yarn twisted yarn. Covering yarn or first aliphatic polyamide covering yarn 23.

Glass fiber yarn may be used as a component of the first central yarn 25. When stainless steel fiber yarn is used, the cutting resistance is excellent, but due to the electrical or thermal conductivity, there is a risk of damage to the skin of the human body due to the use environment, and there is a point that it is difficult to clean with traditional cleaning techniques. Glass fiber yarns are nonmetallic cut resistant fiber yarns that can be manufactured by conventional methods well known to those skilled in the art.

Any kind of glass fiber yarn may be used as the component of the first center yarn 25, and the shape of the glass fiber yarn may be used without any kind. Glass fiber yarns are classified into the most commonly used E-glass, S-glass with high strength properties, R-glass, C-glass with alkali components, G-glass with excellent alkali resistance, etc., depending on chemical composition and physical properties. Can be used without any special restrictions. The cross section of the glass fiber yarn may give a change in cross section depending on the specific use in addition to the circular, and may be, for example, oval, oval, cocoon or polygonal.

The twisting step is one of the twisting processes for twisting the yarns produced through the weaving step, and can be performed by giving a proper twist in the S-row or Z-row direction. The twisted product produced through the twisting process as described above may have a certain stiffness, have a suitable thickness, and be textured by changing the mechanical properties of the yarn.

In one embodiment of the present invention by twisting the glass fiber yarn alone can form a single yarn having a twist of 50 ~ 1000 T / M.

If the twist count is 50 T / M or more, the above-described twisting effect starts to appear, and if the twist count is 1000 T / M or less, the twisting process is normally performed, such that glass fiber yarns are not cut.

In one embodiment of the present invention, the thickness of the glass fiber yarn may be 50 to 1000 denier.

If the thickness of the glass fiber yarn is 50 denier or more, the resistance to tensile, tearing and cutting becomes more than the required level, the weaving process is easy, and if the thickness is 1000 denier or less, the thickness is appropriate when forming the knitted fabric.

Instead of the single twisted yarn of the glass fiber yarn as a high strength yarn component, a conjugate yarn twisted yarn of glass fiber yarn and aramid fiber yarn can be used. Glass fiber has excellent cut resistance but can be difficult to handle due to its stiffness and wear resistance. Since aramid fiber yarn is excellent in cut resistance, elasticity and abrasion resistance than glass fiber yarn, the conjugated twisted yarn of glass fiber yarn and aramid fiber yarn is excellent in cut resistance and abrasion resistance.

Aramid fiber yarns can be used both meta- aramid fiber yarns or para-aramid fiber yarns, and the shape of the aramid fiber yarns may be used. Meta-aramid fiber yarns have flexible molecular chains and have excellent heat resistance, and para-aramid fiber yarns have rigid molecular chains and have excellent strength. A representative example of meta-aramid fiber yarn is Nomex (trade name: Noomex) of DuPont manufactured from poly (m-phenylene isophthalamide) (PMIA), and a representative example of para-aramid fiber yarn is poly (p-phenylene terephthalate). Kevlar (trade name: Kevlar) manufactured by Amide) (PPTA). PPTA is a homopolymer produced from the polymerization of p-phenylene diamine and terephthaloyl chloride, or a small amount of other diamine is incorporated into p-phenylene diamine or a small amount of other diacid chloride is incorporated into terephthaloyl chloride. It may be a copolymer. Examples of commercially produced aramid fibers include DuPont's Nomex, Kevlar, Teijin's Twaron and Kolon's Herracron.

In an embodiment of the present invention, the glass fiber yarn and the aramid fiber yarn can be twisted and weaved to form a twisted yarn having a twist of 50 to 1000 T / M.

Plywood weaving is one of the yarn processing processes in which two or more yarns produced through the weaving process are given a proper twist in the S or Z direction to be wound together and wound together. Plywood yarn produced through the plywood weaving process as described above is changed to the mechanical properties of the yarn is a certain stiffness and the appropriate thickness and is given texture. If the twist number is 50 T / M or more, the twisting effect starts to appear, and if the twist number is 1000 T / M or less, the twisting process is normally performed, such that glass fiber yarns or aramid fibers are not cut off.

In one embodiment of the present invention, the thickness of the aramid fiber yarn may be 5 to 50 cc, 50 to 1500 denier for the filament yarn.

If the thickness of aramid fiber yarn is 5 cc or more for spun yarn or 50 denier or more for filament, the resistance to tensile, tearing and cutting becomes more than required level, facilitating the twisting process, and the thickness is 50 cc or less for spun yarn or filament If it is 1500 denier or less, the thickness at the time of formation of a knitted fabric becomes appropriate.

The first polyester covering yarn or the first aliphatic polyamide covering yarn 23 is a fiber yarn covering the single yarn yarn of the glass fiber yarn or a twisted yarn yarn of glass fiber yarn and aramid fiber yarn. The first polyester covering yarn or the first aliphatic polyamide covering yarn covers the surface of the twisted polyester fiber yarn or aliphatic polyamide fiber yarn manufactured by a conventional method well known to those skilled in the art. To prepare.

In one embodiment of the present invention may be formed on the surface of the twisted material independently of the twisting of 50 ~ 3000 T / M first polyester covering yarn or first aliphatic polyamide covering yarn.

If the number of twists is more than 50 T / M, the covering effect starts to appear, and if the number of twists is less than 3000 T / M, the covering process is performed normally so that problems such as cutting of the first polyester covering yarn or the first aliphatic polyamide covering yarn are not generated. do.

In one embodiment of the present invention, the thickness of the first polyester covering yarn or the first aliphatic polyamide covering yarn may be 5 to 50 cc in the case of spun yarn, and 50 to 1000 denier in the filament.

If the thickness of the first polyester covering yarn or the first aliphatic polyamide covering yarn is 5 cc or more in the case of spun yarn or 50 denier or more in the case of filament, the effect of binding the yarn starts to appear, and the covering process becomes easier, and 5 cc in the case of spun yarn. If it is less than or equal to 1000 denier in the case of filaments, the thickness at the time of formation of the knitted fabric is appropriate.

In one embodiment of the present invention, the first polyester covering yarn may be composed of any one selected from polyethylene terephthalate, polytrimethylene terephthalate, and polybutylene terephthalate, and the first aliphatic polyamide covering yarn is nylon 6, nylon 66, nylon 6T, nylon 10, nylon 11, and nylon 12, any one selected from.

The second center yarns 27 are arranged side by side with the first center yarns, and are made of spandex fiber yarns.

Spandex fiber yarn is manufactured by a conventional method well known to those skilled in the art, and reacts organic diisocyanate with a polymer diol to prepare a polyurethane precursor, which is dissolved in an organic solvent, followed by diamine and mono Prepared by reaction with an amine. As the organic diisocyanate, diphenylmethane-4,4′-diisocyanate, hexamethylene diisocyanate, toluene diisocyanate, butylene diisocyanate and hydrogenated diphenylmethane-4,4′-diisocyanate may be used. As the polymer diol, a polyether diol such as polyethylene glycol, polypropylene glycol, polytetramethylene glycol, or the like, and a polyester diol such as polycarbonate diol may be used. The diamine is used as a chain extender, for example ethylenediamine, propylenediamine or hydrazine may be used, the monoamine is used as a chain terminator, for example diethylamine, monoethanolamine or dimethylamine, etc. Can be.

Spandex fiber yarns have more than 85% by weight of urethane bonds and are excellent in elasticity. It is possible to provide excellent elasticity by using a spandex fiber yarn as a core yarn in the composite processing according to an embodiment of the present invention.

In one embodiment of the present invention, the thickness of the spandex fiber yarn may be 10 ~ 280 denier.

When the thickness of the spandex fiber yarn is 10 denier or more, elasticity can be expressed when used in the knitted fabric, and when the thickness of the spandex fiber yarn is 280 denier or less, the degree of after-expansion and stretch when used in the knitted fabric becomes appropriate.

A second polyester covering yarn or a second aliphatic polyamide covering yarn 29 covers the first and second central yarns together by spirally winding the surfaces of the first and second central yarns.

The second polyester covering yarn or the second aliphatic polyamide covering yarn comprises polyester fiber yarns or aliphatic polyamide fiber yarns prepared by conventional methods well known to those skilled in the art. It is covered on the surface of the core.

In one embodiment of the present invention, the second polyester covering yarn or the second aliphatic covering yarn may have a twist of 50 to 3000 T / M independently on the surfaces of the first and second central yarns, respectively. If the number of twists is more than 50 T / M, the covering effect starts to appear, and if the number of twists is less than 3000 T / M, the covering process is normally performed so that problems such as cutting of the second polyester covering yarn or the second aliphatic polyamide covering yarn are not generated. do.

In one embodiment of the present invention, the thickness of the second polyester covering yarn or the second aliphatic polyamide covering yarn may be 5 to 50 cc in the case of spun yarn, and 50 to 1000 denier in the filament. If the thickness of the second polyester covering yarn or the second aliphatic polyamide covering yarn is 5 cc or more for the spun yarn or 50 denier or more for the filament, the effect of binding the first and second center yarns starts to appear and the covering process becomes easier. If the yarn is 5 cc or less or filament 1000 denier or less, the thickness at the time of formation of the knitted fabric is appropriate.

In one embodiment of the present invention, the second polyester covering yarn may be composed of any one selected from polyethylene terephthalate, polytrimethylene terephthalate, and polybutylene terephthalate, and the second aliphatic polyamide covering yarn is nylon 6, nylon 66, nylon 6T, nylon 10, nylon 11, and nylon 12, any one selected from.

 Hereinafter, the composite processing of the present invention will be described in more detail with reference to Examples. However, this is only to illustrate the composite processing of the present invention as a matter of course that the scope of the present invention is not limited by this embodiment.

Example 1

Pulverized glass fiber yarn 100 denier (Hanaiba Co., Ltd., brand name: ECD 450 1/0 1 Z) and aramid fiber yarn 30 cc (Dupont, brand name: Kevlar) at 100 T / M, and the twisted product Covered at 1500 T / M with ester fiber yarn 50 denier (Hyosung Co., Ltd., brand name: P 50/72 SD DTY) to make a first core yarn.

The first center yarn and the spandex fiber yarn 70 denier (Hyosung Co., Ltd., brand name: Creora) (the 2nd screening) are arranged side by side, and the said 1st and 2nd center yarn are 150 denier of polyester fiber yarn (2nd poly It was covered at 500 T / M with ester covering company) (Huvis Co., Ltd., brand name: P 150/48 SD DTY).

The composite work obtained in this way was supplied to a circular knitting machine (Shimaseki Co., Ltd., brand name: 13GL), and the gloves were knitted.

Example 2

Glass fiber yarn 200 denier (Hanaiba, trade name: ECE 225 1/0 1 Z) was twisted at 100 T / M, and the twisted product was aliphatic polyamide fiber yarn 50 denier (Hyosung Co., Ltd.) P 50/72 SD DTY) to cover the 1300 T / M to make the first core yarn.

The first center yarn and spandex fiber yarn 70 denier (Hyosung Co., Ltd., brand name: Creora) (second center yarn) are arranged side by side, and the first and second center yarns are made of aliphatic polyamide fiber yarn 210 denier ((Note) ) Hyosung, brand name: N 210/24 BR Fil) (second aliphatic polyamide covering company) was covered at 300 T / M.

The composite work obtained in this way was supplied to a circular knitting machine (Shimaseki Co., Ltd., brand name: 13GL), and the gloves were knitted.

Example 3

Glass fiber yarn 200 denier (Hanaiba Corning Co., Ltd., product name: ECE 225 1/0 1 Z) and aramid fiber yarn 30 cc (Dupont, trade name: Kevlar) plywood twisted yarn at 100 T / M, and the twisted product Covering at 1000 T / M with polyester fiber yarn 70 denier (Hyosung Co., Ltd., brand name: P 70/48 SD DTY) to make a first core yarn.

The first center yarn and spandex fiber yarn 70 denier (Hyosung Co., Ltd., brand name: Creora) (second center yarn) are arranged side by side, and the first and second center yarns are made of aliphatic polyamide fiber yarn 210 denier ((Note) ) Hyosung, trade name: N 210/24 BR Fil) (second aliphatic polyamide covering company) was covered at 400 T / M.

The composite work obtained in this way was supplied to a circular knitting machine (Shimaseki Co., Ltd., brand name: 13GL), and the gloves were knitted.

Comparative Example 1

Aramid fiber yarn 30 cc (Dupont, trade name: Kevlar) and stainless steel fiber yarn 65 μm (first line, trade name: STS 316L) are braided and weaved at 500 T / M, and the twisted material is aliphatic polyamide fiber yarn 210 denier ( Covered at 500 T / M with Hyosung Co., Ltd., brand name: N 210/24 BR Fil).

The composite work obtained in this way was supplied to a circular knitting machine (Shimaseki Co., Ltd., brand name: 13GL), and the gloves were knitted.

In the above, the glove composed of the composite work according to the above Examples and Comparative Examples was subjected to the cut strength measurement test according to the method of EN 388, together with the type of fiber yarn used, the results are summarized in Table 1 below.

Sample 1st Central History Second center Second polyester covering yarn or second aliphatic polyamide covering yarn Cut index Level Example 1 Plywood yarn of glass fiber yarn and aramid fiber yarn and polyester covering yarn Spandex fiber yarn Polyester fiber yarn 20.21 5 Example 2 Glass fiber yarn twisted yarn and aliphatic polyamide covering yarn Spandex fiber yarn Aliphatic Polyamide Covering Yarn 23.16 5 Example 3 Plywood yarn of glass fiber yarn and aramid fiber yarn and polyester covering yarn Spandex fiber yarn Aliphatic Polyamide Covering Yarn 25.58 5 Comparative Example 1 Pyramid yarn of aramid fiber yarn and stainless steel fiber yarn - Aliphatic Polyamide Covering Yarn 16.93 4

Referring to Table 1, in the case of Examples 1 to 3 according to the embodiment of the present invention, it was confirmed that the composite processing is excellent in cutting resistance.

1 is a cross-sectional view schematically showing a conventional high strength composite machining.

Figure 2 is a schematic cross-sectional view showing a high strength composite construction according to an embodiment of the present invention.

<Description of Major Symbols in Drawing>

10: High strength composite processing

11: stainless steel fiber yarn

13: organic fiber yarn

20: High strength composite processing

21: single yarn of glass fiber yarn or fused yarn of glass fiber yarn and aramid fiber yarn

23: first polyester covering yarn or first aliphatic polyamide covering yarn

25: First Central History

27: second center

29: second polyester covering yarn or second aliphatic polyamide covering yarn

Claims (7)

As a single yarn of a glass fiber yarn or a yarn yarn of a glass fiber yarn and an aramid fiber yarn, and a first polyester covering yarn or a first aliphatic polyamide covering yarn which covers the yarn by spirally wound on the surface of the sole or yarn yarn yarn. First center yarn made up; A second center yarn arranged side by side with the first center yarn and made of spandex fiber yarn; And And a second polyester covering yarn or a second aliphatic polyamide covering yarn covering the first and second central yarns together by spirally winding the surfaces of the first and second central yarns. The composite processing of claim 1, wherein the single or braided twisted yarn has a twist of 50 to 1000 T / M. The composite processing of claim 1, wherein the first and second polyester covering yarns or aliphatic polyamide covering yarns each independently have a twist of 50 to 3000 T / M. The composite fiber according to claim 1, wherein the glass fiber yarn, aramid fiber yarn, polyester covering yarn, aliphatic polyamide covering yarn, and spandex fiber yarn have the following thicknesses: Glass fiber yarn: 50 to 1000 denier, -Aramid fiber yarn: 5 ~ 50 cc yarns, 50 ~ 1500 denier filaments, -Polyester covering yarn: 5 ~ 50 cc yarns, 50 ~ 1000 denier filaments, Aliphatic polyamide covering yarns: 5 to 50 cc for yarns, 50 to 1000 denier for filaments, Spandex fiber yarn: 10 to 280 denier. The method of claim 1, wherein the first and the second polyester covering yarn is composed of any one selected from polyethylene terephthalate, polytrimethylene terephthalate, and polybutylene terephthalate, and the first and second aliphatic poly Amide covering yarn composite composite, characterized in that consisting of any one selected from nylon 6, nylon 66, nylon 6T, nylon 10, nylon 11, and nylon 12. A knitted fabric comprising the composite workpiece of any one of claims 1 to 5. The knitted fabric of claim 6, wherein the knitted fabric is a glove or a sock.

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