JP2016223054A - Anti-wound string, fabric and glove - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an anti-wound glove, other fabric and string for knitting the fabric which is suitable for using for glove, clothe, other cloth product worn by operators at workshop where a blade tool is used, steel factory, glass plate factory etc., and having excellent flexibility and economical property, and providing no uncomfortable feeling to the wearer due to exposure of folding edge of hard fibers.SOLUTION: There is provided string 4 in which hard fiber 1, such as metal fiber, glass fiber, carbon fiber and polyarylate fiber, and melting fiber 2 are subjected to complex process (plying or covering), then the melting fiber 2 is melted by heating process so as to be fused and integrated with the hard fiber 1. Also provided are: covered yarn in which wound yarn is wound on the string 4 as yarn core; fabric made of the covered yarn and another yarn comprising no hard fiber, which has plating, interlock stitch and double weave; and a glove plated.SELECTED DRAWING: Figure 2

Description

  TECHNICAL FIELD The present invention relates to a knitted fabric used for gloves, clothes, other fabric products worn by an operator in a workplace using a blade, a steel factory, a sheet glass factory, and a yarn used for the knitted fabric. Related to yarns containing tough but inflexible fibers such as metal fibers, glass fibers, carbon fibers, polyarylate fibers (hereinafter referred to as “hard fibers”), knitted fabrics and gloves using the yarns It is.

  Fabric products used in workplaces that use blades, steel factories, flat glass factories, etc., especially gloves, leg ties, and aprons worn by workers, require so-called cut resistance that does not cut even when the cutter blade touches. The As yarns used for gloves and clothes having cut resistance, strong yarns such as ultra-high density polyethylene fibers and aramid fibers, which are widely known as Dyneema (registered trademark), are widely used. In particular, ultra-high density polyethylene fibers are suitable as yarns for knitting gloves used in workplaces that use blades.

  Moreover, the thread | yarn which coat | covered the metal fine wire and the glass fiber with polyethylene and nylon as a thread | yarn used for the same objective is also used. This type of yarn is not stretchable, and when bent, metal wires and glass fibers are easily bent or broken at an acute angle. Further, when a glove or the like is knitted using this type of yarn, flexibility and fit are imparted by knitting with a knitting yarn having elasticity such as polyurethane fiber and raw rubber.

  Patent Documents 1 and 3 propose a covering yarn in which a core yarn composed of a fine metal wire and a spliced yarn is covered with a covering, and a glove knitted with the yarn. Patent Document 2 discloses a sewing thread in which a metal thread and a melt thread are used as a core thread, the core thread is covered with a wound thread, and then heated to fuse the metal thread and the wound thread through the melt thread. It is shown.

  Patent Document 4 discloses a hard composite yarn in which a hard fiber such as a glass fiber is used as a core yarn and a thermoplastic synthetic fiber as a wound yarn, and a high composite material in which a high-strength synthetic fiber is used as a core yarn and a thermoplastic synthetic fiber is used as a wound yarn. A cut prevention glove knitted mainly using high-strength composite yarn has been proposed. As the hard fiber, an example is shown in which a fiber filament bundle of 50 to 300 denier is used as a core yarn, and a polyester multifilament yarn false twisted yarn is covered as a wound yarn to form a hard composite yarn.

International Publication No. 2007/15333 Pamphlet JP 2013-253337 A JP 2012-21258 A JP 2001-164411 A

  As pointed out in Patent Document 1 and the like, gloves knitted with yarn covered with polyethylene fiber or nylon fiber with an inorganic fiber such as metal fiber or glass fiber bent at an acute angle when bent In a glove or the like in which a broken end of a hard fiber that is broken or broken penetrates the winding thread and is exposed, there is a problem that the broken end of the inorganic fiber touches the skin and gives unpleasant feeling. In particular, in order to improve flexibility and fit, elastic fibers such as polyurethane fiber and raw rubber, which have excellent elasticity, are combined with metal fibers to expose the ends of the hard fibers and cause discomfort to the wearer. Easy to give.

  The present invention relates to a glove or other knitted fabric that is excellent in flexibility and economy and has cut resistance that does not cause discomfort to the wearer due to exposure of the broken end of the hard fiber, and the knitted fabric. It is an object to provide a thread for doing this.

  The core yarn according to the inventions of claims 1 to 4 of the present invention is a yarn that becomes the core of the coated yarn (spun yarn or covering yarn) 6 according to the invention of claim 5 and is subjected to a composite treatment (spun twist or covering) 11. This is a yarn (hereinafter referred to as “fused yarn”) 4 in which the hard fiber 1 and the melted fiber 2 are fused and integrated with the hard fiber 1 by melting 2 b of the melted fiber 2 by heat treatment 12. The covered yarn 6 according to the fifth aspect of the present invention is a covered yarn in which the wound yarn 5 is wound around the fusion yarn 4 which is a core yarn.

  The hard fiber 1 is generally an inorganic fiber such as glass fiber, carbon fiber, or stainless fiber, and is preferably glass fiber from the viewpoint of economy, but organic hard fiber such as polyarylate fiber can also be used. The melt fiber 2 is preferably a low-melting polyester fiber, particularly a multifilament having a high melting point in the center and a low melting point in the center or a spun yarn made of cotton having a high melting point in the center and a low melting point in the periphery. The fusion yarn 4 using such a molten fiber has a low melting point portion around the molten fiber 2 that is melted 2b and fused to the surface of the hard fiber 1, and the high melting center portion 2a is not melted. 1 becomes a structure (FIGS. 2 and 3) in a state of being twisted or covered with 1.

  The hard fiber 1 and the molten fiber 2 are fibers, monofilaments, or multifilaments. However, when a metal fiber is used as the hard fiber, the molten fiber 2 is broken when the molten fiber is fused and integrated with the hard fiber. It is preferable to use one having an area equal to or larger than the cross-sectional area of the hard fiber. When a monofilament is used as the hard fiber 1, the melted fiber 2 after welding may slide in the longitudinal direction of the melted yarn 3, and the protection against breakage of the hard fiber 1 may be insufficient. In this case, it is effective to use two melt fibers 2 and in the composite treatment 11, the two melt fibers 2 m and 2 s are wound around the hard fibers 1 in opposite directions to form a composite yarn 3 (FIG. 3). It is. The number of twists of the melted fiber 2 and the hard fiber 1 that are combined (synthetic twisting or covering) is 40 times to 2,000 times, preferably 150 times to 1,000 times per meter.

  The coated yarn 6 of the present invention is a yarn in which a wound yarn 5 such as nylon, polyester, polyethylene, aramid fiber, polyarylate, spider fiber, etc. is wound around a fusion yarn 4 which is a core yarn, and is a knitting having cut resistance. Used for knitting fabrics. The covering yarn covering treatment 13 of the present invention is after the heat treatment 12 of the composite yarn 3, and therefore the wound yarn 5 and the core yarn 4 are not fused.

  The knitted fabric of the present invention is a knitted fabric of the coated yarn 6 of the present invention and other yarn not containing hard fibers, and is obtained by forming a knitted weave such as plating, double-sided knitting, double weaving, etc. This is a knitted fabric in which many coated yarns 6 appear on one side of the knitted fabric and many other yarns 8 and 9 appear on the other side. In order to impart flexibility to the knitted fabric, it is preferable to use, as the other yarns 8 and 9, yarns having high stretchability such as polyurethane fibers and raw rubber.

  There are various types of knitted fabrics of the glove of the present invention, but a particularly preferred fabric is a structure in which the coated yarn 6 is the ground yarn, the elastic yarn 8 is the accessory yarn, the outer surface is the ground yarn, and the inner surface is the accessory yarn. Gloves.

  The fused yarn 4 of the present invention is in a state in which a part or the entire circumference of the fused yarn 4 is covered with a molten fiber resin 2b fused to the surface of the hard fiber 1. When a molten fiber having a high melting point at the center 2a is used as the molten fiber 2, the high melting point portion 2a of the molten fiber 2 is integrated with the hard fiber 1 wound around.

  In the fused yarn 4 of the present invention, when the yarn is bent, the portion where the bending strain becomes the largest, that is, the outer peripheral portion of the yarn where the internal stress becomes the largest becomes a molten resin portion having a large elasticity, and is integrated with the hard fiber. The stress applied to the hard fiber is reduced by the internal stress of the molten resin, and even when the hard fiber breaks, the molten resin fused to the surface does not break. Therefore, in the knitted fabric knitted with the coated yarn of the present invention, the folded end of the hard fiber 1 is difficult to be exposed on the surface of the knitted fabric, and does not give the wearer an unpleasant feeling called a tingling feeling.

  In addition, the coated yarn of the present invention and other more flexible, for example, a knitted fabric such as plating, double-sided knitting, double weaving, etc., knitted with elastic yarn such as polyurethane fiber or raw rubber, makes it feel soft A knitted fabric having good and excellent flexibility can be obtained. In particular, gloves knitted with elastic yarn have excellent flexibility and touch.

The block diagram which shows the manufacturing process of the covering yarn of this invention Schematic cross section of fused yarn Schematic sectional view showing another example of fused yarn Schematic side view showing the coating process Explanatory drawing showing an example of knitted fabric Explanatory drawing showing an example of woven fabric

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a process for manufacturing a coated yarn 6 according to the invention of claim 5. As shown in the figure, in the composite treatment 11 of the first step, the hard fiber 1 and the molten fiber 2 are composited, and the obtained composite yarn 3 is heat-treated 12 in the second step to at least the peripheral portion of the molten fiber 2. Is melted 2b to adhere to the surface of the hard fiber 1 that has been composited. The yarn obtained by the heat treatment 12 is the core yarn (fused yarn) 4 according to the inventions of claims 1 to 4.

  Preferred hard fibers 1 are stainless steel fibers, carbon fibers, glass fibers, and polyarylate fibers. Stainless steel fibers are excellent in terms of cut resistance, and glass fibers are excellent in terms of economy. The stainless fiber is preferably a single yarn having a wire diameter of 10 to 120 μm or a composite of 2 to 5 fibers, and the glass fiber is preferably a multifilament of 10 to 600 denier.

  As the molten fiber 2, a low melting point polyester fiber, a low melting point polyamide fiber, a low melting point polyethylene fiber, or the like can be used, and it is more preferable to use a molten fiber having a high melting point in the central portion 2 a and a low melting point in the peripheral portion. The number of twists of the hard fiber 1 and the molten fiber 2 in the composite treatment 11 is 40 times / m to 2,000 times / m, preferably 150 times / m to 1,000 times / m.

  The heat treatment 12 in the second step is a process in which at least the peripheral portion of the molten fiber 2 that is combined with the hard fiber 1 is melted and fused to the surface of the hard fiber 1 to integrate both. Therefore, the heating temperature and the heating time are a temperature and a time at which at least the peripheral portion of the molten fiber 2 is melted 2b and the melted resin is fused to the surface of the hard fiber 1. When a melt fiber having a high melting point at the center 2a and a low melting point at the periphery is used as the melt fiber 2, the heating temperature in the heat treatment 12 is such that the resin at the low melting point melts and the resin at the high melting point 2a melts. Temperature.

  2 and 3 are enlarged views schematically showing a cross section of a preferable fusion yarn 4 obtained by heat treatment. FIG. 2 is a fusion in which one molten fiber 2 is wound around a multifilament glass fiber 1. FIG. 3 shows an example of an effective yarn in which a thin molten fiber and a thick molten fiber are wound in opposite directions on a monofilament stainless fiber. As shown in the figure, the resin 2b melted on the surface of the hard fiber 1 is fused to the surface of the hard fiber 1 in a state of spreading from the center part 2a of the melted fiber that is not melted. The high melting point portion 2a, which is the center of the molten fiber, remains in a state of being wound around the hard fiber 1 without melting.

  In the covering process 13 in the third step, the wound yarn 5 is wound around the fusion yarn 4 obtained in the second step. Examples of the wound yarn 5 include processed yarns of raw materials such as ester, nylon and polyethylene, raw yarns, and the like, but an appropriate yarn may be used depending on the intended use of the coated yarn 6 to be obtained.

  FIG. 4 is an enlarged side view showing a state in the middle of covering in the covering process 13, and shows a state where the wound yarn 5 serving as the covering yarn is wound around the fusion yarn 4 serving as the core yarn. Although FIG. 4 shows a single cover, it is needless to say that a double cover may be used. By this third step, the coated yarn 6 according to the invention of claim 5 can be obtained.

  The obtained coated yarn 6 can be knitted or woven alone or together with yarns containing other hard fibers, but is generally knitted or woven with other yarns not containing hard fibers. For example, when knitting a glove, the coated yarn 6 of the present invention is used as the ground yarn, and the splicing yarn 8 includes a yarn containing a high elastic yarn such as polyurethane fiber or raw rubber, a bulky processed yarn, a natural fiber yarn, and the like. Using a yarn excellent in properties and touch, plating (attachment yarn knitting, FIG. 5) can be made so that the ground yarn 6 appears on the surface of the glove and the attachment yarn 8 appears on the inner surface.

  Plating is widely used as a method of knitting that uses different yarns on the front and back sides, but double knitting and double-sided knitting are also known. By using these techniques, the outer surface or surface is cut resistant. A knitted fabric having properties and toughness, and having properties corresponding to the use of each knitted fabric such as flexibility, hygroscopicity, and touch on the inner surface or the back surface can be obtained.

  For example, as shown in FIG. 6, the outer layer 21 is woven with the coated yarn 6 of the present invention, the inner layer 22 is woven with other yarns 9 made of fibers having excellent tactile sensation, and the other yarns 9 are laid on the outer layer. For example, a woven fabric having a double structure that is intermittently hung around 21 and connected by 9a. Double-sided knitting is also a two-layer knitted fabric similar to double weaving.

  Table 1 is a table showing examples of the yarns and coated yarns of the present invention that were prototyped by the inventors of the present application. In this table, the glass yarns of product numbers 1 to 4 are multifilaments of glass fibers having 100 strands, the glass yarns of product numbers 5 and 6 are multifilaments of glass fibers of 200 strands, and the stainless steel wires are monofilaments. is there.

  The melted fiber is a yarn composed of a plurality of fibers having a high melting point at the center and a low melting point at the periphery, and product numbers 1 and 7 are spun yarns, and product numbers 2 to 6 and 8 to 11 are multifilaments. The melted fiber composed of a plurality of spun yarns and multifilaments is melted by the heat treatment 12 in FIG. 1 so that the low melting point portion is melted and fused to the surface of the glass yarn and the stainless fine wire, and the plurality of fibers are melted. It solidifies to form a monofilament comprising a plurality of fiber center portions 2a (center portions of the respective fibers remaining without melting) and a melted resin 2b that integrally includes them.

  The wound yarn is a multifilament. The numerical values in parentheses in each column of the glass yarn, the molten yarn and the wound yarn are numerical values indicating the wire diameter when the total cross-sectional area of each fiber is one fiber.

  According to the tests conducted by the inventors, the covered yarns of product numbers 3, 6, 9 and 10 whose types are shown in Table 1 are used as ground yarns for knitting cut-resistant gloves by plating. It was recognized as particularly excellent.

  The fusion yarn using a single yarn (monofilament) of stainless steel as the hard fiber 1 may not be sufficiently covered with the hard fiber 1 due to slippage in the longitudinal direction of the yarn between the stainless steel and the molten resin. . As shown in FIG. 3, this problem can be solved by combining the molten fibers 2 using 2 m and 2 s.

  Table 2 is a table showing the contents of the tests conducted by the inventors on the molten yarn shown in FIG. That is, after the molten fiber 2s is wound around the hard fiber 1, the molten fiber 2m is wound so as to intersect with the lower layer molten fiber 2s, and then subjected to heat treatment 12 to perform both the molten fibers 2m, 2s. The test which melts was performed. As a result of these tests, it was confirmed that the above-mentioned problems when using monofilament stainless steel fibers were solved.

  The hard fibers, molten fibers 2s, 2m and wound yarns in Table 2 are collectively described for a plurality of prototype yarns having different numbers of twists, and the types of fibers and yarns described in multiple lines in each column are as follows: Each of them and a plurality of thicknesses separated by “,” are prototyped. In the table, sus is stainless steel monofilament, GY is glass fiber multifilament, melt fiber is multifilament melt polyester fiber, WE is Woolley ester, WN is Woolley nylon, μ is wire diameter micron, D is denier, d is decitex ( dtex), T / m is the number of twists per meter.

DESCRIPTION OF SYMBOLS 1 Hard fiber 2 (2s, 2m) Molten fiber 3 Composite yarn 4 Fusion yarn 5 Winding yarn 6 Coated yarn 8, 9 Elastic yarn 11 Composite treatment 12 Heat treatment 13 Coating treatment

Claims (8)

  A core yarn in which a molten fiber is fused to a hard fiber in a yarn in which a hard fiber and a molten fiber are combined.   The core yarn according to claim 1, wherein the hard fiber is an organic hard fiber.   The core yarn according to claim 1 or 2, wherein a cross-sectional area of the molten fiber after the fusion is equal to or larger than a cross-sectional area of the hard fiber.   2. The melt fiber according to claim 1, wherein the melt fiber is a fiber having a melting temperature at a central portion in the cross section higher than a melt temperature at the peripheral portion, and only the peripheral portion is melted and fused to the hard fiber by heat treatment. Core yarn.   The coated yarn in which the wound yarn is wound around the core yarn according to claim 1, 2, 3, or 4, wherein the molten fiber is fused to the hard fiber and is not fused to the wound yarn. .   A knitted fabric of the coated yarn according to claim 5 and another yarn not containing hard fibers, wherein the coated yarn appears on one side of the knitted fabric and the other yarn appears on the other side. Knitted fabric.   The knitted fabric according to claim 6, wherein the other yarn is an elastic yarn.   6. A glove knitted with the coated yarn and the elastic yarn according to claim 5, wherein the coated yarn appears on the outer surface of the glove and the other yarn appears on the inner surface.

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