TW201726989A - Tough thread and its core thread, knitted fabric, and gloves not exposing a breaking end of a hard fiber making a wearer unpleasant - Google Patents

Abstract

The present invention provides a tough thread and its core thread, knitted fabric, and gloves. The gloves herein are suitable for operators to wear in a knife-using workplace, a steel material factory, a plate glass factory, and the like; they are soft and economically superior, and it is impossible to expose a breaking end of a hard fiber making a wearer unpleasant. The method comprises providing a thread (20); a strong thread is formed by a thread that wraps the thread (20) as a core thread; a knitted fabric and gloves are formed by using the tough thread and knitted fabric of the other thread to have a yarn-adding knitting, a double faced knitting, a double layer knitting, and the like. The thread (20) herein comprises hard fibers (1) and melting fibers (2) made of metal fibers, glass fibers and the like. A superior option further comprises under-layer fibers (3) as a third fiber, which, after composite treatment (twisting or wrapping), is subjected to a heat treatment to melt (2b) the melting fibers (2) that are fused with the hard fibers (1) and the under-layer fibers (3), forming a single body.

Description

Tough line and its core wire, braid and gloves

The present invention relates to a knitted fabric used for an operator to wear gloves, clothes, and other cloth products at a work place where a tool is used, a steel factory, a sheet glass factory, and the like, and a thread used for the knitted fabric, and relates to a metal fiber, A core wire of a tough but inflexible fiber (hereinafter referred to as "hard fiber") such as glass fiber, carbon fiber or polyarylate fiber, a tough line using the core wire, a knitted fabric having cut resistance, and a glove.

A cloth product used in a work place where a tool is used, a steel factory, a plate glass factory, etc., in particular, a glove, a legging, an apron, etc., which are worn by an operator, are required to be cut even if the cutting edge of the tool is touched. Cutting. As a thread for gloves and clothing having cut resistance, a strong yarn such as ultra-high-density polyethylene fiber or aramid fiber, which is widely known by the name of ダイニーマ (registered trademark), is widely used. In particular, ultra high density polyethylene fibers are suitable as a thread for knitting gloves used in a work place where a cutter is used.

Further, as a wire used for the same purpose, a wire formed by coating metal fine wires and glass fibers with polyethylene and nylon is also used. This kind of wire has no stretchability, and the thin metal wires and the glass fibers are bent at an acute angle or easily broken when bent. In addition, when such a thread is used to knit a glove or the like, it is interlaced with a stretchable braided wire such as polyurethane fiber or raw rubber to impart flexibility and fit.

Patent Documents 1 and 3 propose a covered wire formed by wrapping a core wire composed of a metal thin wire and a reinforcing yarn in a wrapping manner, and a glove knitted using the wire. Further, Patent Document 2 discloses a suture in which a metal wire and a molten wire are used as a core wire, and the core wire is covered with a wire and heated, whereby the metal wire and the wire are welded by means of a molten wire.

Further, Patent Document 4 proposes a high-strength composite wire mainly comprising a hard fiber such as glass fiber as a core wire, a hard composite wire using a thermoplastic synthetic fiber as a winding, and a high-strength synthetic fiber as a core wire and a thermoplastic synthetic fiber as a winding. Interwoven cut-resistant gloves. As the hard fiber, the following example is shown: a glass strand of 50 denier to 300 denier is used as a core wire, and a pre-twisted processing line of polyester multifilament is coated around it as a winding to form a hard composite wire.

Prior art literature

Patent literature

Patent Document 1: International Publication No. 2007/15333

Patent Document 2: Japanese Laid-Open Patent Publication No. 2013-253337

Patent Document 3: Japanese Patent Laid-Open Publication No. 2012-21258

Patent Document 4: Japanese Laid-Open Patent Publication No. 2001-164411

As pointed out in Patent Document 1 and the like, there is a problem in that a glove woven by a wire made of polyethylene fiber or nylon fiber is used as a core wire of an inorganic fiber such as a metal fiber or a glass fiber, and is bent at the time of bending. The broken end of the acute fiber or the broken hard fiber is pierced and exposed, and in the case of a glove or the like directly worn on the skin, the broken end of the inorganic fiber comes into contact with the skin and causes discomfort. In particular, when an elastic yarn such as a polyurethane fiber or a raw rubber having excellent stretchability is combined with a metal fiber in order to improve the flexibility and the fit, the broken end of the hard fiber is easily exposed to cause discomfort to the wearer.

An object of the present invention is to provide a cut-resistant glove and a cut-resistant apron which are excellent in flexibility and economy, and which are not exposed to the broken end of the rigid fiber and which give the wearer an uncomfortable feeling and have an excellent wearing feeling. Other cut-resistant braids and the tough lines used in these.

The first aspect of the invention is a core wire of a strong yarn which is a composite of a hard fiber and a molten fiber, in which a molten fiber is welded to the hard fiber.

According to a second aspect of the invention, in the core wire of the first aspect, the cross-sectional area of the molten fiber after the fusion is equal to or larger than a cross-sectional area of the hard fiber.

According to a third aspect of the invention, in the core wire of the first aspect, the core wire is a wire obtained by combining and welding a hard fiber and a molten fiber, the core wire further comprising a lower layer fiber, and the lower layer fiber is disposed on the hard wire The fiber is composed of natural fibers or synthetic fibers between the molten fibers, and the molten fibers are welded to the hard fibers and the unmelted underlayer fibers.

In the core wire according to claim 1 or 2, the molten fiber is a fiber whose melting temperature at a central portion in a cross section is higher than a melting temperature of a peripheral portion, and is heat-treated so that only a peripheral portion thereof Melt and weld to the hard fibers.

According to a fifth aspect of the invention, in the core wire of the third aspect, the molten fiber is a fiber whose melting temperature at a central portion in a cross section is higher than a melting temperature of a peripheral portion, and is heated to cause only a peripheral portion thereof to be melted. Welding with the hard fiber.

The sixth aspect is a tough line formed by winding a wire wound around a core wire, wherein the core wire is the core wire of the first aspect, and the molten fiber is not welded to the wire.

The seventh aspect is a tough line formed by winding a wire wound around a core wire, wherein the core wire is the core wire according to claim 3 or 5, and the molten fiber is also wound with the unmelted wire. Wire welding.

The technical solution 8 is a woven fabric which is a woven fabric of the tough line and the other thread containing no hard fibers according to claim 6 or 7, wherein the tough line is mostly present in the woven fabric. On one face, the other lines appear more on the other side of the braid.

According to a ninth aspect, in the woven fabric of the eighth aspect, the other thread is an elastic thread.

The technical solution 10 is a glove which is woven by the tough line and the elastic thread according to claim 6 or 7, wherein the tough line is mostly on the outer surface of the glove, and the elastic thread is more Appears on the inner surface of the glove.

The core wire 20 (20a, 20b) of the inventions of the first and second aspects of the invention is a wire which becomes the core of the tough wire 30 (30a) of the invention of the sixth aspect, and the molten fiber 2 is melted by the heat treatment 12 2b On the other hand, the hard fiber 1 subjected to the composite treatment (twisting or coating) 11 and the line in which the molten fiber 2 and the hard fiber 1 are welded together are integrally formed.

The core wire 20 (20c to 20e) of the invention of claim 3 is a wire of the core wire of the tough line 30 (30c to 30e) of the invention of claim 7 and is disposed on the hard fiber 1 and the molten fiber 2 and The third fiber (natural fiber or synthetic fiber. Hereinafter referred to as "lower fiber" in the technical proposal) 3 is subjected to a composite treatment (kneading or coating) 11 and then the molten fiber 2 is melted by heat treatment 12 to 2b. A line formed by welding a rigid fiber 1 and an unmelted lower layer fiber 3 together.

The core wire 20 of the present invention is partially or completely covered by the molten fiber 2b to which the hard fiber 1 is welded to the surface. When the molten fiber having a low melting point in the peripheral portion 2b and a high melting point in the center portion 2a is used as the molten fiber 2, the high-melting-point portion 2a of the molten fiber 2 is integrated in a state of being unwoundly wound around the hard fiber 1 .

The tough lines 30 (30a, 30c to 30e) and 40 (40c to 40e) of the present invention are wound around a winding 5 of nylon, polyester, polyethylene, aramid fiber, polyarylate, spider silk or the like. A wire formed by the core wire 20 and used to knit a knitted fabric having cut resistance.

Preferably, the coating treatment 13 is performed after the heat treatment 12 of the composite wire 10 (10a, 10c to 10f), but when the core wire contains the lower fiber 3 and the heat-resistant wire 5a is used as the winding, The coating treatment 13 is performed before the heat treatment 12 to form the tough line 40. In the case of the tough line 30, the winding 5 and the core 20 are not melted. On the other hand, in the case of the tough line 40, since the heat treatment 12 is performed after the coating treatment 13, the winding 5 and the core wire 20 are welded by melting the molten fibers 2b.

The hard fiber 1 is a stainless steel fiber, a carbon fiber, a glass fiber, or a polyarylate fiber, and a plurality of hard fibers may be used in combination depending on the application. The stainless steel fiber is excellent in the cut resistance, and the glass fiber is excellent in economical efficiency. As the stainless steel fiber, a single wire having a wire diameter of 10 μm to 150 μm or a composite of two to five is preferable, and as the glass fiber, a multifilament or a woven yarn of 10 denier to 600 denier is preferable.

The molten fiber 2 may be a low melting point polyester fiber, a low melting point polyamide fiber, a low melting point polyethylene fiber or the like, but is preferably a low melting point polyester fiber, and it is particularly preferred that the center portion has a high melting point and the peripheral portion has a low melting point. Molten fiber. The core wire 20 using such a molten fiber has a structure in which the low melting point portion of the peripheral portion of the molten fiber 2 is melted 2b and welded to the surfaces of the hard fiber 1 and the lower layer fiber 3, and the high melting point center portion 2a is not melted and hard fibers are used. 1 and the lower layer fiber 3 are twisted or coated on the hard fiber 1 and the lower layer fiber 3 (Fig. 2, Fig. 3, Fig. 7, Fig. 12, Fig. 16).

When a metal fiber is used as the hard fiber, it is preferable that the molten fiber 2 is a fiber in which the cross-sectional area of the molten fiber when it is integrated with the hard fiber is equal to or larger than the cross-sectional area of the hard fiber. The number of turns of the molten fiber 2 and the hard fiber 1 after the compounding (kneading or coating) is 40 to 2,000 times per metre, preferably 150 times to 1,000 times.

When a monofilament is used as the hard fiber 1, the molten fiber 2 after melting may slide in the longitudinal direction, and the protection against breakage of the hard fiber 1 may be insufficient. In this case, it is effective to form the core wire 20b (Fig. 3) in which two of the molten fibers 2 are wound, and in the composite processing 11, the two molten fibers 2m, 2n are wound in opposite directions to each other. Hard fiber 1 on it.

As the lower layer fiber 3, a polyester spun yarn or a blended yarn of polyester and cotton may be used, but a lanolin ester, an ester, a nylon, a wool nylon or the like is preferable. The hard fibers 1, the lower fibers 3, and the molten fibers 2 are fibers, monofilaments or multifilaments.

The woven fabric of the present invention is a woven fabric of the tough line 30, 40 of the present invention and other threads which do not contain hard fibers, and is a woven fabric which is woven by weaving, double woven, double woven, etc. More of the tough lines 30, 40 appear on one side of the resulting braid, and the other lines 8, 9 appear on the other side of the braid. In order to impart flexibility to the woven fabric, it is preferable to use a thread having a large stretchability such as polyurethane fiber or raw rubber as the other threads 8 and 9.

A variety of considerations have been made for the woven structure of the glove of the present invention, and it is considered that the particularly preferred structure is a glove in which the weaving is woven into a strong yarn 30, 40 as a ground yarn, and an elastic yarn 8 as an woven yarn, and the ground yarn is exposed. On the surface, the woven yarn appears on the inner surface.

Effect of the invention

The core wire 20 of the present invention is a portion where the bending deformation is the greatest when the wire is bent, that is, the outer peripheral portion of the wire having the largest internal stress becomes a lower elastic fiber or a molten resin portion, and the inside of the molten resin and the lower fiber integrated with the hard fiber The stress applied to the hard fibers is relieved, and the lower fibers and the molten resin are not broken even when the hard fibers are broken. Therefore, the broken end of the rigid fiber 1 of the knitted fabric knitted by the tough line of the present invention is less likely to be exposed on the surface of the knitted fabric, and does not give the wearer an uncomfortable feeling such as puncturing.

The core fibers 20c to 20e formed by integrating the hard fibers 1 and the lower fibers 3 by the molten fibers 2 of the molten 2b, the hard fibers 1 are coated with the lower fibers 3 and the molten resin 2b, so that the lower fibers 3 are hard. Since the fiber 1 is protected from breakage and breakage, it is possible to obtain a tough line having excellent flexibility and fit even more than the core wires 20a and 20b covered only with the molten resin 2.

Further, since the tough line of the present invention is formed, and the woven fabric of the woven fabric, the double woven fabric, the double woven fabric, or the like which is softened by adding elastic yarns such as polyurethane fibers or raw rubber, etc., is formed. It is possible to form a knitted fabric which is excellent in skin feel and excellent in softness. In particular, the elastic yarn-woven gloves have excellent softness and skin feel.

Therefore, by using the tough lines 30, 40 and other threads of the present invention, various woven fabrics, work gloves, leggings, work aprons, and the like are provided, thereby providing excellent flexibility and economy, and hard fibers are not generated. Gloves and other braids with cut-off resistance that are exposed to the wearer and give the wearer an uncomfortable feeling.

Embodiments of the present invention will now be described with reference to the accompanying drawings. In the figure, 1 is a hard fiber, 2 is a molten fiber, 3 is a lower fiber disposed between the hard fiber 1 and the molten fiber 2, and 10a is a composite (twisted or coated) of the hard fiber 1 and the molten fiber 2. The composite yarns 10c to 10f are composite wires in which the hard fibers 1 and the lower fibers 3 and the molten fibers 2 are combined, and 20a and 20b are obtained by welding the molten fibers 2 and the hard fibers 1 which are melted 2b by the heat treatment 12. 20c to 20e are core wires in which the molten 2b of the molten 2b and the hard fiber 1 and the lower layer 3 which is not melted are welded together, and 30a is obtained by winding the winding 5 around the core wires 20a and 20b. The tough line, 30c to 30e, is a tough line obtained by winding the winding 5 around the core wires 20c to 20e, and 40 is a tough line in which the winding 5a is welded to the core wires 20c to 20e by the molten fiber 2 of the molten 2b.

1 to 4 are views showing first and second embodiments in which the lower layer fibers are not provided. 5 to 20 are views showing third to ninth embodiments including the lower layer fibers 3, and Figs. 5 to 9 are third and fourth examples showing that both the hard fibers 1 and the lower layer fibers 3 are one. A diagram of an embodiment. Fig. 10 to Fig. 13 are views showing a fifth embodiment in which the hard fibers are two 1 m and 1 n. 14 to 17 are views showing a sixth embodiment in which the lower layer fibers 3 are two 3 m and 3 n. 18 to 20 are views showing seventh to ninth embodiments which are opposite to the order of the heat treatment 12 and the coating process 13 in the third to sixth embodiments.

Fig. 1 is a block diagram showing a manufacturing process of the tough line 30a of the invention of the first embodiment and the second embodiment. In the composite treatment 11 of the first step, the hard fiber 1 and the molten fiber 2 are combined, and in the second step, the obtained composite wire 10 is subjected to a heat treatment 12 to melt at least a peripheral portion of the molten fiber 2 to adhere thereto. On the surface of the hard fiber 1 to be composited. The line obtained in this heat treatment 12 is the core wire 20a.

The heat treatment 12 in the second step of FIG. 1 is a process in which at least the peripheral portion of the molten fiber 2 combined with the hard fiber 1 is melted and welded to the surface of the hard fiber 1 to integrate the two. Therefore, the heating temperature and the heating time are temperatures and times at which the resin melted at least the peripheral portion of the molten fiber 2 is melted and the surface of the hard fiber 1 is welded. When the center portion 2a is a molten fiber having a high melting point and a low melting point in the peripheral portion, the heating temperature of the heat treatment 12 is a temperature at which the resin in the low melting point portion is melted and the resin in the high melting point portion 2a is not melted.

2 and 3 are enlarged views schematically showing a cross section of the core wire 20a of the first embodiment and the core wire 20b of the second embodiment obtained by heat treatment, and Fig. 2 is a view in which a molten fiber 2 is wound up. An example of a core wire formed by the glass fiber 1 of the wire, and FIG. 3 is an example of a core wire formed by winding a thin molten fiber and a coarse molten fiber in opposite directions to the stainless steel fiber of the monofilament.

In the coating treatment 13 of the third step, the winding 5 is wound around the core wires 20a and 20b obtained in the second step. 4 is an enlarged side view showing a state in the middle of the coating in the coating process 13, and shows a state in which the winding 5 as a tough wire is wound around the core wire 20a as a core wire. Figure 4 is a single-strand coating, which of course may also be a double-strand coating. The tough line 30a can be obtained by this third process.

5, 10, and 14 are block diagrams showing manufacturing steps of the tough lines 30c to 30e. In the composite treatment 11 of the first step, the hard fibers 1, the lower fibers 3, and the molten fibers 2 are combined with each other, and in the second step, the obtained composite wires 10c to 10e are heat-treated 12 so that at least the periphery of the molten fibers 2 Part 2 is melted 2b and adhered to the composite hard fiber 1 and the lower layer fiber 3. The wires obtained by this heat treatment 12 are the core wires 20c to 20e. Further, the composite treatment 11 may be carried out in one step, but it is usually carried out in a plurality of twisting or coating steps.

As shown in FIGS. 6, 11, and 15, the lower layer fiber 3 is wound around the hard fiber 1 as a reinforcing yarn. The lower layer fiber 3 is wound so as not to completely cover the surface of the hard fiber 1 to expose the hard fiber 1 between adjacent lower layer fibers. Preferably, the number of turns of the lower layer fiber 3 is 40 times/m to 1000 times/m, preferably 100 times/m to 350 times/m, but in the sixth embodiment in which the lower layer fibers 3 are two, usually, As shown in Fig. 15, the two lower layers of fibers 3m and 3n are composited by a double-strand coating process, and in this case, the lower layer fibers 3m on the side of the hard fibers 1 are preferably 3 times/m to 50 times/m.

Usually, the molten fiber 2 is covered by a double-strand coating process and intersects with the lower layer fiber (stacking) wound around the hard fiber 1. In other words, as shown in FIG. 6, FIG. 11, and FIG. 15, the lower layer fiber 3 is wound as a reinforcing yarn on the hard fiber 1, and the molten fiber 2 as the upper winding is wound in the opposite direction to the winding direction of the lower layer fiber 3. .

The composite treatment in FIGS. 6 to 8 is a process of winding the lower layer fiber 3 around the hard fiber 1, but may be a process of winding the hard fiber 1 around the lower layer fiber 3. Fig. 9 is a view showing the composite wire 10f as processed. In the composite treatment, a core fiber in which the hard fiber 1 is wound around the lower layer fiber by using the lanolin ester, the ester, the nylon, the wool nylon as the lower layer fiber 3, and the molten fiber 2 is wound thereon, and the core is heated. The tough line formed by winding the wire on the wire is stretchable, so it is suitable for a knitted fabric that requires higher flexibility.

In the heat treatment 12 of the second step, at least the peripheral portion of the molten fiber 2 in the composite wire 10 obtained by the composite processing 11 in the first step is melted and welded to the hard fiber 1 and the lower layer fiber 3 of the lower layer to integrate the three. Processing. Therefore, the heating temperature and the heating time are temperatures and times at which the resin melted at least the peripheral portion of the molten fiber 2 is melted and the surfaces of the hard fibers 1 and the lower fibers 3 are welded.

7, 12, and 16 are enlarged views schematically showing a cross section of the core wires 20c to 20e of the respective embodiments obtained by the heat treatment 12. As shown in the figure, the resin 2b melted on the surface of the hard fiber 1 is welded to the surface of the hard fiber 1 and the lower layer fiber 3 in a state of being expanded from the unmelted center portion 2a of the molten fiber, and serves as a center portion of the molten fiber. The high melting point portion 2a is not melted and remains in the molten resin 2b in a state of being wound around the hard fiber 1 and the lower layer fiber 3.

As described above, the lower layer fiber 3 does not completely cover the surface of the hard fiber 1, and the hard fiber 1 is exposed between the wound lower layer fibers 3. The molten molten fiber 2 is welded to the surface of the hard fiber 1 in the exposed region. On the other hand, since the molten fiber 2 and the lower layer fiber 3 are combined in an intersecting manner, the lower layer fiber 3 is welded at the intersecting portion.

In the coating treatment 13 of the third step, the winding 5 is wound around the core wires 20c to 20e obtained in the second step.

FIGS. 8 , 13 , and 17 are enlarged side views showing a state in the middle of the coating of the coating process 13 , and show a state in which the winding 5 is wound around the core wires 20 c to 20 e. These figures show a single-strand coating, which of course can also be a double-strand coating. The tough lines 30c to 30e can be obtained by this coating treatment.

In the case where the wire 5 having heat resistance, that is, the wire 5a which does not melt in the heat treatment 12 in which the molten fiber 2 is melted and welded to the hard fiber 1 and the lower layer fiber 3 is used as the winding 5, as shown in FIGS. 18 to 20 As shown, the coating treatment 13 can be performed prior to the heat treatment 12.

The composite processing 11, the heat treatment 12, and the coating treatment 13 of the seventh to ninth embodiments of Figs. 18 to 20 are the same as the composite processing 11, the heat treatment 12, and the coating treatment 13 of the third to sixth embodiments, respectively. Only the following aspects are different from the tough lines 30c to 30e of the third to sixth embodiments: the obtained winding of the tough line 40 is limited to the heat-resistant wire 5a, and the molten fiber melted in the heat treatment 12 2 is also welded to the winding 5a.

In the experiments in which the inventors used glass fiber as the hard fiber 1, lanolin as the lower fiber 3, and wool, lanolin, and aramid fiber as the winding, if the hard fiber, the lower fiber, the molten fiber, and the wound wire When the type and the number of turns are the same, the function or effect as the tough line is substantially the same as that of the third to sixth embodiments.

The resulting tenacity lines 30, 40 can also be woven separately or woven together with threads containing other hard fibers, but are typically interwoven or interwoven with other threads that do not contain hard fibers. For example, in the case of knitting a glove, the tough line 30, 40 of the present invention can be used as a ground yarn, a line containing a high elastic yarn such as a polyurethane fiber or a raw rubber, a fluffy processing line, a line of a natural fiber, etc., and moisture absorption can be used. A thread excellent in texture and skin feel is applied as a woven yarn 8 (Fig. 21) so that the ground yarns 30 and 40 appear on the surface of the glove, and the woven yarn 8 appears on the inner surface.

Weaving is widely used as a weaving method for different threads on the back side of the watch, but double weaving and double weaving are also known. By using these techniques, we can obtain a knitted fabric having an outer surface or a surface. Cut resistance and toughness, and the inner surface or the back surface has properties corresponding to the use of each knitted fabric, such as softness, moisture absorption, and skin feel.

For example, as shown in Fig. 22, the layer 21 which is woven outside using the tough lines 30 and 40 of the present invention, the layer 22 which is woven by the other thread 9 which is composed of fibers having excellent skin feel, and the outer layer are provided on the outer side. The texture of the two-layer structure in which the layers 21 are intermittently wound around the other lines 9 and the like. The double-faced weave is also a double-layered knitted fabric similar to the double-layer weave. [Table 1]

Table 1 is a table showing an example of the tough lines of the first and second embodiments prototyped by the inventors of the present application. In the table, the glass yarns of product numbers 1 to 4 are multifilaments of glass fibers having a bare wire number of 100, and the glass yarns of product numbers 5 and 6 are multifilaments of glass fibers having a bare wire number of 200, and stainless steel. The thin line is a monofilament.

The molten fiber is a line composed of a plurality of fibers having a high melting point at the center portion and a low melting point at the peripheral portion, and product numbers 1 and 7 are textile threads, and product numbers 2 to 6 and 8 to 11 are multifilaments. The molten fiber composed of a plurality of woven yarns and multifilaments is a monofilament composed of a plurality of unmelted fibers 2a and a molten resin 2b integrally containing these fibers by the heat treatment 12 in Fig. 1 . The molten low melting point portion is welded to the surface of the glass filament and the stainless steel thin wire.

The winding is multifilament. The numerical value in ( ) of each of the glass filaments, the molten fibers, and the windings is a numerical value indicating the diameter of the wire when the entire cross-sectional area of each fiber is one fiber.

According to the test conducted by the inventors, the tough yarns of the product numbers 3, 6, and 9, 10, which are shown in Table 1 as the type of winding, are particularly excellent as the ground yarn used for knitting the cut resistant gloves by the weaving knitting. .

A core wire formed by using a stainless steel single wire (monofilament) as the hard fiber 1 may cause a wire to slide in the longitudinal direction between the stainless steel and the molten resin, and the hard fiber 1 may not be sufficiently covered. As shown in FIG. 3, this problem can be solved by combining two of 2m and 2n as the molten fiber 2. [Table 2]

Table 2 is a table showing the contents of the test conducted by the inventors with respect to the core wire 20b shown in Fig. 3. In other words, after the molten fiber 2m is wound around the hard fiber 1, the molten fiber 2n is wound to cross the molten fiber 2m which is the lower layer to be composited, and then the heat treatment 12 is performed to melt the two. The fibers 2m and 2n are melted. As a result of these tests, it was confirmed that the above problems when the monofilament stainless steel fiber was used were solved.

In addition, regarding the hard fibers 2m and 2n and the windings in Table 2, a plurality of trial lines having different numbers of turns are collectively described, and the types of fibers and lines described in a plurality of rows in each column are indicated for each of them. In addition, trial production was carried out for a case where a plurality of thicknesses were divided by ",".

In these tables, GY is a multifilament of glass fiber, sus is a stainless steel monofilament, molten fiber is a multifilament of molten polyester, WE is lanolin, WN is wool nylon, PET is polyester, An acrylic, D is but Neil, μ is the wire diameter micron, and T/m is the number of turns per meter. [table 3] [Table 4] [table 5]

Tables 3, 4, and 5 are tables each showing an example of the tough lines of the third, fourth, and sixth embodiments prototyped by the inventors of the present application. Regarding the hard fibers, the lower fibers, the molten fibers, and the windings in Table 3, a plurality of trial lines having different numbers of turns are collectively described, and the types of fibers and lines described in a plurality of rows are indicated for each of them. And trial production was carried out for a number of cases divided by ",".

At least the peripheral portion of each of the fibers is melted by the heat treatment 12, and is welded to the surface of the hard fibers and the lower layer of the lanolin fibers, and the plurality of fibers are melted and solidified to form a monofilament composed of the resin 2b after melting (see the figure). 7, Figure 12 and Figure 16).

In Table 3, tests were carried out for the case where a multifilament of glass fiber was used as the hard fiber 1 and a case where a monofilament of stainless steel was used. In either case, the lower layer fibers 3 can be disposed between the hard fibers 1 and the molten fibers 2 to impart excellent flexibility and a better wearing feel to the obtained tough line and knitted fabric.

However, when one stainless steel monofilament is used as the core of the hard fiber, the welding power of the hard fiber and the molten fiber is weak, and the hard fiber 1 cannot be sufficiently coated, and the flexibility of the knitted fabric using the core wire is also insufficient.

On the other hand, according to the fifth embodiment in which the hard fiber 1 is a twisted yarn of the glass fiber 1m and the stainless steel fiber 1n as shown in Tables 4 and 11, and the lower layer fiber 3 shown in Tables 5 and 15 is in the winding direction. In the sixth embodiment of the two lower fibers 3m and 3n in the opposite direction, the flexibility of the core wire or the tough wire containing the stainless steel monofilament excellent in cut resistance can be improved.

In practical use, when the cut resistance is important, it is preferable to use the embodiment shown in Table 4, and it is also possible to impart flexibility by forming a structure in which the stainless steel fiber 1n is wound around the multifilament of the glass fiber 1 m. On the other hand, when importance is attached to flexibility, the embodiment shown in Table 5 can be employed.

1‧‧‧hard fiber 2‧‧‧Fusing fiber 3‧‧‧Under fiber 5, 5a‧‧‧ Winding 8, 9‧‧‧ elastic thread 10 (10a, 10c ~ 10f) ‧ ‧ composite line 11‧‧‧Combined treatment 12‧‧‧heat treatment 13‧‧‧ Coating treatment 20 (20a ~ 20e) ‧ ‧ core wire 30 (30a, 30c ~ 30e) ‧ ‧ strong line 40 (40c ~ 40e) ‧ ‧ strong line

Fig. 1 is a block diagram showing a manufacturing process of the tough line of the first and second embodiments. Fig. 2 is a schematic cross-sectional view of the core wire of the first embodiment. Fig. 3 is a schematic cross-sectional view of a core wire of a second embodiment. Fig. 4 is a schematic side view showing the coating process of the first embodiment. Fig. 5 is a block diagram showing a manufacturing process of a tough line of the third embodiment. Fig. 6 is a schematic side view showing a composite process of the third embodiment. Fig. 7 is a schematic cross-sectional view showing a core wire of a third embodiment. Fig. 8 is a schematic side view showing a coating process of the third embodiment. Fig. 9 is a schematic side view showing a composite process of the fourth embodiment. Fig. 10 is a block diagram showing a manufacturing process of the tough line of the fifth embodiment. Fig. 11 is a schematic side view showing a composite process of the fifth embodiment. Fig. 12 is a schematic cross-sectional view showing a core wire of a fifth embodiment. Fig. 13 is a schematic side view showing a coating process of the fifth embodiment. Fig. 14 is a block diagram showing a manufacturing process of the tough line of the sixth embodiment. Fig. 15 is a schematic side view showing a composite process of the sixth embodiment. Fig. 16 is a schematic cross-sectional view showing a core wire of a sixth embodiment. Fig. 17 is a schematic side view showing a coating process of the sixth embodiment. Fig. 18 is a block diagram showing a manufacturing process of the tough line of the seventh embodiment. Fig. 19 is a block diagram showing a manufacturing process of the tough line of the eighth embodiment. Fig. 20 is a block diagram showing a manufacturing process of the tough line of the ninth embodiment. 21 is an explanatory view showing an example of a knitted fabric. Fig. 22 is an explanatory view showing an example of a knitted fabric.

(no)

1‧‧‧hard fiber

2‧‧‧Fusing fiber

2a‧‧‧ Central Department

2b‧‧‧melting

3‧‧‧Under fiber

20c‧‧‧core

Claims (10)

A core wire of a tough wire, which is a wire composed of a composite of hard fibers and molten fibers, in which molten fibers are welded to the hard fibers. The core wire according to claim 1, wherein the melted fiber after the fusion has a cross-sectional area equal to or larger than a cross-sectional area of the hard fiber. The core wire according to claim 1, wherein the core wire is formed by combining and welding a hard fiber and a molten fiber, the core wire further comprising an underlayer fiber, and the lower layer fiber is disposed between the hard fiber and the molten fiber. Between natural fibers or synthetic fibers, the molten fibers are welded to the hard fibers and the unmelted underlayer fibers. The core wire according to claim 1 or 2, wherein the molten fiber is a fiber whose melting temperature at a central portion in a cross section is higher than a melting temperature of a peripheral portion, and is heat-treated so that only a peripheral portion thereof is melted and Hard fiber fusion. The core wire according to claim 3, wherein the molten fiber is a fiber whose central portion has a melting temperature higher than a melting temperature of the peripheral portion, and is heat-treated so that only the peripheral portion thereof is melted and the hard fiber Fiber fusion. A tough line formed by winding a wire wound around a core wire, wherein the core wire is the core wire of claim 1, and the molten fiber is not welded to the wire. A tough line formed by winding a wire wound around a core wire, wherein the core wire is the core wire of claim 3 or 5, and the molten fiber is also welded to the unmelted wire. A woven fabric, which is a woven fabric of the tough line of claim 6 or 7 and other threads without hard fibers, wherein the tough line is more likely to appear on one side of the woven fabric. The other lines appear more on the other side of the braid. The woven fabric of claim 8, wherein the other thread is an elastic thread. A glove obtained by weaving a tough line and an elastic thread according to claim 6 or 7, wherein the tough line is mostly present on an outer surface of the glove, and the elastic thread is mostly present in the glove Inner surface.