JP7217541B2 - Textile product, method for producing textile product, double-layer coated yarn, and method for producing double-layer coated yarn - Google Patents

Description

In the present invention, a composite yarn having a core made of synthetic fibers and a resin layer (sheath) provided so as to coat the core is partially knitted and woven, and the knitted and woven portion of the composite yarn is heat set. The present invention relates to a method for producing a resin-coated yarn in which a resin region is formed by cooling, a resin-coated yarn, a textile product, a method for producing a textile product, a two-layer coated yarn, and a method for producing a two-layer-coated yarn.

In a textile product (knit) such as socks, the frictional force between the textile product and the part of the body with which the textile product comes into contact is improved, and the textile product is provided with a non-slip effect and the grip force is improved. There is technology to Examples of such techniques include a technique of printing and applying vinyl chloride resin, silicone resin, etc. to textile products, and a technique of using silicone threads in the production of textile products.

In Patent Document 1 below, in the body of the sock, a non-slip material such as natural rubber or silicon rubber is added to the inside and outside of the contact area between the toe and the ball girth (ball girth) of the phalanges. A technique for providing a non-slip portion using a member is disclosed.

In addition, in Patent Document 2 below, by using a thread with a high friction coefficient on the back side of the leg at the heel and toe portions, it is possible to prevent friction between the floor and the outer surface of the sock and between the sole and the inner surface of the sock. A sock with an anti-slip function is disclosed.

Also known is a decorative thread having a hot-melt synthetic adhesive attached over its entire length (Patent Document 3). After the decorative thread is placed on the material to be decorated so that a predetermined decorative pattern is drawn, the decorative thread is heated by an appropriate heating means to melt the hot-melt synthetic adhesive and bond it to the material to be decorated. to form a predetermined decorative pattern.

Also known is a fusible yarn in which the outer surface of a core yarn is coated with a hot-melt adhesive (Patent Document 4). The fused yarns are used as warp yarns and the raised yarns are used as weft yarns. In the middle of the carpet woven, the hot-melt adhesive melts and adheres to the weft yarns by, for example, applying far-infrared irradiation treatment in the middle of the process, and the warp yarns and weft yarns are bonded. A strongly adherent carpet is obtained.

A sheath-core type heat-adhesive conjugate fiber is known in which the sheath component is composed of a heat-adhesive component and the core component is composed of a fiber-forming component (Patent Document 5). This thermoadhesive composite fiber is used in sanitary materials such as diapers and napkin members, filters, wipers, agricultural materials, food packaging materials, garbage bags, interior materials, industrial materials, etc., and is used in metal materials, inorganic materials, resin materials ( plastics, foams, etc.), cellulosic materials (woods, etc.).

Japanese Patent Application Laid-Open No. 2017-20149 (published on January 26, 2017) Japanese Patent Application Laid-Open No. 2017-162149 (published on September 14, 2017) Japanese Utility Model Laid-Open No. 1-168568 (published on November 28, 1989) Japanese Patent Application Laid-Open No. 7-292536 (published on November 7, 1995) Patent No. 4438998 (published on January 15, 2010)

However, the technique described in Patent Literature 1 has a problem that the anti-slip effect is reduced due to the peeling of the anti-slip member. Further, the technique described in Patent Document 2 has a problem that the anti-slip effect is reduced due to wear of the surface. In other words, the prior art has the problem that the anti-slip effect cannot be sufficiently maintained.

The techniques described in Patent Documents 3 to 5 are techniques related to strong adhesive fixation of textile products, and do not suggest a configuration for imparting an anti-slip effect to textile products.

One aspect of the present invention has been made in view of the above problems, and includes a method for producing a resin-coated yarn that can sufficiently maintain an anti-slip effect, a resin-coated yarn, a textile product, a method for producing a textile product, An object of the present invention is to realize a two-layer coated yarn and a method for producing the two-layer coated yarn.

In order to solve the above problems, a method for producing a resin-coated yarn according to an aspect of the present invention heats a resin-coated material containing a thermoplastic resin and an adhesion enhancer that enhances the adhesive strength of the thermoplastic resin. a liquefying step of liquefying the resin coating material liquefied by the liquefying step by a gear pump and supplying it to a nozzle; and a resin coating material extruded by the gear pump and supplied to the nozzle is formed by fibers. and a coating step of forming a resin coat layer that is coated around the core thread portion to cover the core thread portion.

In order to solve the above problems, a resin-coated yarn according to one aspect of the present invention includes a core yarn portion formed of fibers and a resin coat layer covering the core yarn portion, wherein the resin coat layer is a thermoplastic resin; and an adhesion enhancer for enhancing adhesive strength of the thermoplastic resin to prevent slippage between the surface of the thermoplastic resin and a contact object.

In order to solve the above problems, a textile product according to one aspect of the present invention is characterized by being knitted and woven using the resin-coated yarn according to one aspect of the present invention.

In order to solve the above problems, a method for manufacturing a textile product according to one aspect of the present invention includes a knitting and weaving step of knitting and weaving the resin-coated yarn according to the present invention, and a resin coating of the resin-coated yarn knitted and woven in the knitting and weaving step. A melting step of heating and melting the layer, and a forming step of cooling the resin coating layer melted in the melting step to form a melted and solidified region that prevents slippage between the layer and the contact object. characterized by

In order to solve the above problems, the two-layer coated yarn according to one aspect of the present invention includes a core yarn portion formed of fibers, a first resin coat layer covering the core yarn portion, and the first resin and a second resin coat layer covering the coat layer, wherein the first resin coat layer is made of a thermoplastic resin and the thermoplastic resin for preventing slippage between the thermoplastic resin and a contact object. and an adhesion enhancer that enhances adhesion.

In order to solve the above problems, a method for producing a two-layer coated yarn according to one aspect of the present invention provides a first resin coating material containing a thermoplastic resin and an adhesion enhancer that enhances the adhesive strength of the thermoplastic resin. A liquefaction step of heating and liquefying the first resin coating material liquefied by the liquefaction step, a first supply step of extruding the first resin coating material liquefied by the gear pump and supplying it to the first nozzle, and extruding by the gear pump to the first nozzle a first coating step of coating the supplied first resin coating material around a core yarn portion formed of fibers to form a first resin coating layer covering the core yarn portion; a second supply step of supplying a resin to a second nozzle; and applying the second resin supplied to the second nozzle around the first resin coat layer applied to the core thread portion in the first application step. and a second coating step of forming a second resin coat layer covering the first resin coat layer.

In order to solve the above problems, a method for manufacturing a textile product according to one aspect of the present invention includes a soluble resin in which the second resin coat layer according to the present invention has solubility, and the two-layer coat according to the present invention. a knitting and weaving step of knitting and weaving a yarn; a removing step of applying a fluid to the two-layer coat yarn knitted and woven in the knitting and weaving step to remove the soluble resin from the first resin coat layer; and a cooling step of cooling the coat layer and the core yarn portion.

According to one aspect of the present invention, a method for producing a resin-coated yarn, a resin-coated yarn, a textile product, a method for producing a textile product, a two-layer-coated yarn, and a two-layer-coated yarn that can sufficiently maintain an anti-slip effect can be realized.

It is a figure showing an example of textiles concerning one embodiment of the present invention. 1. It is a figure which shows an example of the core-sheath composite yarn used for the textile product shown in FIG. 3 is a diagram showing an example of manufacturing conditions for the core-sheath composite yarn shown in FIG. 2. FIG. FIG. 2 is a flow chart showing an example of the manufacturing flow of the textile product shown in FIG. 1. FIG. It is a figure showing an example of textiles concerning a modification of one embodiment of the present invention. FIG. 10 is a diagram showing an example of a textile product according to another modified example of one embodiment of the present invention; FIG. 10 is a cross-sectional view showing an example of a resin-coated yarn according to Embodiment 2; (a) and (b) are cross-sectional views for explaining the biting effect on the contact object to which the resin coat layer formed on the resin coat yarn adheres, and (c) is a graph for explaining the glass transition temperature. is. It is a schematic diagram for demonstrating the manufacturing method of the said resin-coated thread|yarn. 4 is a flow chart showing a procedure of a sock manufacturing method using the resin-coated yarn. Fig. 3 is a schematic diagram showing a friction test apparatus for a material forming a resin coat layer of the resin coat yarn. It is a graph which shows the friction test result of the material which comprises the said resin coat layer. (a) is an enlarged surface view of the front yarn side of the knitted fabric of socks using the resin-coated yarn before melting and solidification, (b) is an enlarged cross-sectional view thereof, and (c) is the back yarn side thereof. It is an enlarged back view. (a) is an enlarged surface view of the front yarn side of the sock knitted fabric using the resin-coated yarn after melting and solidification, (b) is an enlarged cross-sectional view thereof, and (c) is the back yarn side thereof. It is an enlarged back view. (a) is an enlarged surface view of the front yarn side of another knitted fabric of socks using the resin-coated yarn before melting and solidification, (b) is an enlarged cross-sectional view thereof, and (c) is the back yarn thereof. It is an enlarged rear view of the side. (a) is an enlarged surface view of the front yarn side after melting and solidification of another knitted fabric of socks using the resin-coated yarn, (b) is an enlarged cross-sectional view thereof, and (c) is the back yarn thereof. It is an enlarged rear view of the side. (a) is an enlarged surface view of the front yarn side of yet another knitted fabric of socks using the resin-coated yarn before melting and solidification, (b) is an enlarged cross-sectional view thereof, and (c) is the back side. It is an enlarged back view of the thread side. (a) is an enlarged surface view of the front yarn side after melting and solidification of yet another knitted fabric of socks using the resin-coated yarn, (b) is an enlarged cross-sectional view thereof, and (c) is the back side. It is an enlarged back view of the thread side. (a) is an enlarged surface view of the front yarn side of yet another knitted fabric of socks using the resin-coated yarn before melting and solidification, (b) is an enlarged cross-sectional view thereof, and (c) is the back side. It is an enlarged back view of the thread side. (a) is an enlarged surface view of the front yarn side after melting and solidification of yet another knitted fabric of socks using the resin-coated yarn, (b) is an enlarged cross-sectional view thereof, and (c) is the back side. It is an enlarged back view of the thread side. FIG. 10 is a cross-sectional view showing an example of a double-layer coated yarn according to Embodiment 3; FIG. 4 is a schematic diagram for explaining the method for producing the two-layer coated yarn. Fig. 3 is a flow chart showing the steps of a sock manufacturing method using the double-layer coated yarn. (a) to (d) are images for explaining a peel test method for the material constituting the resin coat layer of the two-layer coated yarn. 4 is a graph showing results of an isolation test of materials forming the resin coat layer. 4 is a graph showing isolation test results of other materials constituting the resin coat layer. 4 is a graph showing isolation test results of still another material that constitutes the resin coat layer. 4 is a graph showing additional isolation test results of still another material that constitutes the resin coat layer. 4 is a graph showing additional isolation test results of still another material that constitutes the resin coat layer. 4 is a graph showing additional isolation test results of still another material that constitutes the resin coat layer. (a) is an enlarged surface view of the front yarn side of the knitted fabric of socks using the above two-layer coat yarn before melting and solidification, (b) is an enlarged cross-sectional view thereof, and (c) is the back yarn side thereof. is an enlarged rear view of the. (a) is an enlarged surface view of the front yarn side after melting and solidification of the sock knitted fabric using the above two-layer coat yarn, (b) is an enlarged cross-sectional view thereof, and (c) is the back yarn side thereof. is an enlarged rear view of the. (a) is an enlarged surface view of the front yarn side of another knitted fabric of socks using the above two-layer coat yarn before melting and solidification, (b) is an enlarged cross-sectional view thereof, and (c) is the back side. It is an enlarged back view of the thread side. (a) is an enlarged surface view of the front yarn side after melting and solidification of another knitted fabric of socks using the above two-layer coat yarn, (b) is an enlarged cross-sectional view thereof, and (c) is the back side. It is an enlarged back view of the thread side. (a) is an enlarged surface view of the front yarn side of yet another knitted fabric of socks using the above two-layer coat yarn before melting and solidification, (b) is an enlarged cross-sectional view thereof, and (c) is its enlarged cross-sectional view. It is an enlarged back view of the back thread side. (a) is an enlarged surface view of the front yarn side after melting and solidification of yet another knitted fabric of socks using the above two-layer coat yarn, (b) is an enlarged cross-sectional view thereof, and (c) is its It is an enlarged back view of the back thread side. (a) is an enlarged surface view of the front yarn side of yet another knitted fabric of socks using the above two-layer coat yarn before melting and solidification, (b) is an enlarged cross-sectional view thereof, and (c) is its enlarged cross-sectional view. It is an enlarged back view of the back thread side. (a) is an enlarged surface view of the front yarn side after melting and solidification of yet another knitted fabric of socks using the above two-layer coat yarn, (b) is an enlarged cross-sectional view thereof, and (c) is its It is an enlarged back view of the back thread side.

[Embodiment 1]
An embodiment of the present invention will be described in detail below with reference to FIGS. 1 to 4. FIG.

(Overview of Textile Products)
FIG. 1 is a diagram showing an example of a textile product according to one embodiment of the present invention. A sock 1 is shown in FIG. 1 as an example of the textile product according to the present embodiment. The sock 1 may be, for example, a running sock.

In the sock 1 shown in FIG. 1, the toe portion 11, the toe ball portion 12 (also referred to as the toe base portion), and the heel portion 13 are knitted with a core-sheath composite yarn described later, and the remaining portion is knitted with knitting yarn. .

Note that the toe portion 11, the ball portion 12, and the heel portion 13 may be knitted with the core-sheath composite yarn and the knitting yarn.

(core-sheath composite yarn)
FIG. 2 is a diagram showing an example of the core-sheath composite yarn. As an example, the core-sheath composite yarn according to this embodiment is the core-sheath composite yarn 10 shown in FIG.

The core-sheath composite yarn 10 includes a core portion 101 and a sheath portion 102 covering the core portion 101 . The diameter of the core-sheath composite yarn 10 is arbitrarily set according to the thickness of the knitting yarn used for the sock 1 . As an example, the diameter may be of the order of 300 μm.

As an example, the core 101 is composed of a plurality of synthetic fibers as shown in FIG. Specifically, the core 101 is made of 48 polyester fibers and has a thickness of 150 denier. The type and number of synthetic fibers used for the core portion 101 are not limited to this example. By forming the core part 101 with a plurality of fibers, the core-sheath composite yarn 10 can be made into a yarn with high flexibility, and the knitting of the textile product is facilitated.

The sheath 102 is made of resin. The resin preferably has thermoplasticity and exhibits a moderately high coefficient of friction when re-solidified after being melted. As the resin, EVA (ethylene-vinyl acetate copolymer) resin is particularly suitable, but PVC (polyvinyl chloride) resin and the like may also be used.

FIG. 3 is a diagram showing an example of manufacturing conditions for the core-sheath composite yarn 10. As shown in FIG. The yarn sweep speed may be arbitrarily adjusted according to the type of resin used for the sheath 102, the thickness of the sheath 102 (thickness of the resin layer), the thickness of the core 101, and the like. Note that the core-sheath composite yarn 10 may be manufactured under conditions different from these conditions.

(Manufacturing method for textile products)
FIG. 4 is a flow chart showing an example of the manufacturing flow of the sock 1 according to this embodiment. First, the sock 1 is knitted using the sheath-core composite yarn 10 and the knitting yarn (step S1). As an example, when the sock 1 is knitted using a sock knitting machine, the toe portion 11, the ball portion 12, and the heel portion 13 are knitted with the core-sheath composite yarn 10, and the remaining portion is knitted with the knitting yarn. be.

Subsequently, the sock 1 is heated (step S2), so that the sheath portion 102 of the core-sheath composite yarn 10 is melted. As an example, the sock 1 is heated by a heat setting process commonly used in the process of knitting sock. Specifically, the sock 1 is put on a mold in the shape of a human foot, and steamed at about 100° C. for 10 to 25 seconds by a dedicated heat-setting machine. In step S2, heat pressing may be performed instead of the heat setting step. This keeps the sole of the foot flat.

Subsequently, the sock 1 is cooled (step S3), thereby resolidifying the melted resin. As an example, the resin is re-solidified by placing the sock 1 in a room temperature environment. Thus, the manufacturing of the sock 1 is completed.

(action/effect)
As shown in FIG. 4, by heating and cooling the sock 1 knitted using the core-sheath composite yarn 10, the sheath portion 102 is melted and then solidified again. As a result, the knitted core portion 101 is coated with resin.

As described above, since resin has a moderately high coefficient of friction, the portion knitted using the core-sheath composite yarn 10 exhibits a high anti-slip effect. In addition, the portion is resistant to wear and peeling, and can maintain a high anti-slip effect. In addition, the thickness of the resin-coated portion (that is, the portion knitted using the core-sheath composite yarn 10) and the other portions are almost the same. This can prevent the wearer of the sock 1 from feeling uncomfortable.

In addition, conventional socks with an anti-slip effect (for example, socks printed with vinyl chloride resin or silicone resin) exhibit an anti-slip effect on the skin, but when worn over stockings, they do not slip. It does not show a stopping effect and may slip off. On the other hand, in the sock 1 according to the present embodiment, the core-sheath composite yarn 10 is knitted into the sock 1 and integrated, so that the sock 1 can easily follow the expansion and contraction. As a result, even when the sock 1 does not come into direct contact with the skin, such as when worn over stockings, a high anti-slip effect and a high gripping force can be exhibited.

Further, in the sock for running, like the sock 1 shown in FIG. 1, the toe portion 11, the ball portion 12, and the heel portion 13 are knitted with the core-sheath composite yarn 10 to improve exercise efficiency. can be realized.

Specifically, the relationship between the sole of the foot and the ground during running will be described in chronological order as follows: (1) the heel touches down, (2) the center of gravity moves toward the toes, and (3) the center of gravity reaches the base of the toes. (4) Kick the ground with your toes to move forward. Wearing the sock 1 improves the gripping force (stretching force) between the foot and the sock at the heel, the base of the toes, and the toes, and the gripping force between the sock and the sole. As a result, exercise efficiency can be improved as described above.

(Modification 1)
At least one of the toe portion 11, the ball portion 12, and the heel portion 13 of the sock 1 described above may be knitted using the core-sheath composite yarn 10.

(Modification 2)
The textile product according to one aspect of the present invention is not limited to the sock 1 described above. Another example of a textile product according to one aspect of the present invention will now be described with reference to FIG. FIG. 5 is a diagram showing an example of a textile product according to this modification. FIG. 5 shows a sock 2 as an example of the textile product according to this modification.

At least part of the opening 21 of the sock 2 shown in FIG. Since the manufacturing method shown in FIG. 4 can be used for manufacturing the sock 2, the description will not be repeated here.

By knitting the opening part 21 with the core-sheath composite yarn 10, the opening part 21 of the completed sock 2 is coated with resin, and the frictional force between the opening part 21 and the skin is increased. As a result, it is possible to prevent the opening 21 of the sock 2 from slipping down.

(Modification 3)
Another example of a textile product according to an aspect of the present invention will be described with reference to FIG. FIG. 6 is a diagram showing an example of a textile product according to this modified example. FIG. 6 shows a foot cover 3 as an example of the textile product according to this modification.

The foot cover 3 shown in FIG. 6 has a U-shaped region 31 in the heel portion, and the region 31 is knitted with the core-sheath composite yarn 10 . Since the manufacturing method shown in FIG. 4 can be used for manufacturing the foot cover 3, the description will not be repeated here.

By knitting the region 31 with the core-sheath composite yarn 10, the region 31 of the completed foot cover 3 is coated with resin, and the frictional force between the heel portion and the skin is increased. As a result, it is possible to prevent the foot cover 3 from coming off.

Note that the region 31 is not limited to the U-shape. For example, it may be a three-letter shape. In other words, a plurality of (three) rectangular regions knitted with the core-sheath composite yarn 10 may be formed in the heel portion.

(Modification 4)
The core-sheath composite yarn 10 may have a second sheath (not shown) outside the sheath 102 so as to cover the sheath 102 . The purpose of the second sheath is to improve the knitting properties of the textile product. For this reason, it is preferable that the second sheath part does not have stickiness and is slippery. Also, the second sheath is removed after the textile product is knitted. As an example, the second sheath may be removed in the step of applying heat to the textile (step S2 in FIG. 4). When the heat setting step is performed in this step, the second sheath is preferably made of water-soluble and low-melting resin. As an example, the second sheath may be composed of particulate EVA.

(Modification 5)
The core-sheath composite yarn 10 may be used as part of a textile product (hereinafter referred to as piezoelectric textile product) made of yarn having piezoelectricity (hereinafter referred to as piezoelectric yarn). That is, the core-sheath composite yarn 10 may be used for a portion of a textile product that generates an electric charge due to tensile stress generated by being stretched (pulled) by an external force.

By using the core-sheath composite yarn 10 for a part of the piezoelectric fiber product, the stretchability of the portion knitted with the core-sheath composite yarn 10 is lost, and tensile stress is generated around it. Thereby, an electric charge can be efficiently generated around the knitted region of the core-sheath composite yarn 10 .

Piezoelectric textiles can be sterilized by the generation of electrical charges. By knitting the piezoelectric fiber product according to the present modification with the piezoelectric yarn and the core-sheath composite yarn 10, it is possible to efficiently generate an electric charge around the knitting region of the core-sheath composite yarn 10 as described above. Therefore, it is possible to realize a piezoelectric fiber product with improved sterilization performance.

[Embodiment 2]
Embodiment 2 of the present invention will be described in detail below with reference to FIGS. 7 to 20. FIG.

(Resin-coated yarn 41, structure of textile product)
FIG. 7 is a cross-sectional view showing an example of the resin-coated yarn 41 according to the second embodiment. The resin-coated yarn 41 shown in FIG. 7 corresponds to the core-sheath composite yarn 10 described above with reference to FIG.

The resin-coated yarn 41 includes a core yarn portion 42 formed of fibers and a resin coat layer 43 covering the core yarn portion 42 . The core thread portion 42 corresponds to the core portion 101 described above with reference to FIG. 2, and the resin coat layer 43 corresponds to the sheath portion 102 described above with reference to FIG.

The resin coating layer 43 contains a thermoplastic resin and an adhesion enhancer that enhances the adhesion of the thermoplastic resin to prevent slippage between the surface of the thermoplastic resin and the contacting object.

The thermoplastic resin of the resin coat layer 43 contains an olefin resin. This olefin resin is preferably an EVA (ethylene-vinyl acetate copolymer) resin.

A knitting and weaving process of knitting and weaving the resin coat yarn 41, a melting process of heating and melting the resin coat layer 43 of the resin coat yarn 41 knitted and woven in this knitting and weaving process, and a cooling of the resin coat layer 43 melted in this melting process. and a forming step of forming a melt-solidified region that prevents slippage between the contact object and the textile product.

The textile product thus manufactured includes a first core yarn portion formed of fibers, a first resin coat layer formed of a thermoplastic resin and covering the first core yarn portion, and a second core yarn portion formed of fibers. The first resin coat layer, the second resin coat layer formed of the same material as the first resin coat layer and covering the second core thread portion, and the first and second resin coat layers to prevent slippage between the contact object and the contact object. A melted and solidified region formed integrally with the first and second resin coat layers from the same material as the second resin coat layer is provided.

This textile product can be, for example, the sock 1 previously described in FIG. The sock 1 includes a toe portion 11, a toe portion 12, and a heel portion 13, and the melted solidified region is preferably formed in at least one of the toe portion 11, the toe portion 12, and the heel portion 13. .

The contact object of the melted and solidified region of the textile product preferably includes the user's skin of the textile product, and the contact object of the melted and solidified region of the sock includes the skin of the user's feet.

The resin coat layer 43 has stickiness and a high coefficient of static friction even when the resin coat layer 41 is in the state of the resin coat yarn 41 or when the resin coat yarn 41 is knitted and then resinized to be formed in the melt-solidified region. Therefore, a textile product using the resin-coated yarn 41 is less likely to be displaced from the skin and less likely to come off. When the resin coating layer 43 is resinified and formed in the melted and solidified region, the contact area with the user's skin is increased, so that the anti-slip effect on the skin is enhanced.

Since the resin coat layer 43 has a high coefficient of static friction, the maximum static frictional force immediately before starting to move against the contact object is large. For this reason, if the textile product is, for example, a sock 1, when the sock 1 is put on, if the external force exceeds the maximum static frictional force of the resin coat layer 43, the sock 1 will be displaced from the wearer's skin. Since the coefficient of static friction is high, the sock 1 does not easily move from the wearer's skin. As a result, there is an effect that it is possible to provide legwear that is difficult to come off and slip off easily.

Since the resin coat layer 43 has thermoplasticity, it can be applied to the core yarn portion 42, and the melted and solidified region can be formed by heating and cooling after knitting the resin coat yarn 41.

8(a) and 8(b) are sectional views for explaining the biting effect on the contact object 48 to which the resin coat layer 43 formed on the resin coat thread 41 adheres, and (c) explains the glass transition temperature. It is a graph for

The resin coat layer 43 has adhesiveness. Here, adhesion is a kind of adhesion, and means adhesion by applying a slight pressure for a short period of time at room temperature without using water, solvent, heat, or the like. As shown in FIG. 8(a), the resin coat layer 43 is pressed against the irregularities on the surface of the contact object 48, which is the adherend, through air bubbles 49 with a slight pressure. Then, due to molecular contact with the adherend based on covalent bonds, intermolecular forces, van der Waals forces, and London dispersion forces, the resin coating layer 43 is formed on the surface of the contact object 48 as shown in FIG. 8(b). , anchors, and sticks to the contact object 48. - 特許庁

Viscosity is a property of liquids and elasticity is a property of solids. A substance with a low glass transition temperature has "viscoelasticity", which is a combination of viscosity and elasticity. For example, the glass transition temperature of the adhesive for adhesive tape is -60°C to -40°C, and the glass transition temperature of the EVA resin is -42°C to 40°C. The higher the molecular weight of a substance, the higher the melting point of the substance, and the lower the molecular weight of the substance, the lower the melting point. If the degree of polymerization of a substance is large, the substance will be solid at room temperature, and if the degree of polymerization is small, the substance will be liquid at room temperature.

Among the olefin-based resins contained in the resin coat layer 43, resins such as EVA resin, which have stickiness at room temperature due to their molecular weight and degree of polymerization, exhibit a non-slip effect between the resin-coated thread 41 and the contact object.

A fiber having a higher melting point than that of the resin coat layer 43 is used as the fiber forming the core thread portion 42 . For example, polyester fiber (PET) (melting point 260 degrees), polyurethane fiber (melting point 230 degrees), nylon 6 fiber (melting point 215 degrees), cotton (decomposition point 215 degrees), linen (decomposes at 200 degrees), rayon (260 degrees) ~ start of decomposition) and p-aramid fibers (carbonized at 400 degrees or more) form the core thread portion 42 .

Since the resin coat layer 43 of the resin coat thread 41 has thermoplasticity, it can be coated on the core thread portion 42 and can be melted and solidified to form a melted and solidified region.

The melting point of the resin coat layer 43 is lower than the melting point of the core thread portion 42 . Therefore, the core thread portion 42 does not melt down when the resin coat layer 43 is melted. Since the glass transition temperature of the resin coat layer 43 is low, the resin coat layer 43 has adhesiveness at room temperature.

When the resin coat layer 43 contains an olefin-based resin, the olefin-based resin does not need to use a solvent that may cause rough skin when forming a coating or a melt-solidified region, and thus constitutes a textile product that is gentle on the skin. be able to. For example, since EVA resin satisfies the above conditions, the resin coat layer 43 preferably contains EVA resin.

(Manufacturing method of resin-coated thread 41)
FIG. 9 is a schematic diagram for explaining the method of manufacturing the resin-coated yarn 41. As shown in FIG. First, a resin coating material containing a thermoplastic resin and an adhesive enhancer for enhancing the adhesive strength of the thermoplastic resin is put into a resin tank (not shown) in the melter 50, and the resin tank is heated to coat the resin. Liquefy the material.

Then, the liquefied resin coating material is extruded by the gear pump 46 provided in the melter 50 and supplied to the nozzle 47 . Next, the resin coating material extruded by the gear pump 46 and supplied to the nozzle 47 is discharged around the core thread portion 42 supplied to the nozzle 47 to form the resin coating layer 43 covering the core thread portion 42 . .

Thereafter, the resin-coated yarn 41 having the resin-coated layer 43 formed thereon is supplied to the water tank 51 , and the resin-coated yarn 41 is cooled by the water in the water tank 51 . Then, the resin-coated yarn 41 whose resin-coated layer 43 has been cooled is wound around the winding portion 53 via the yarn insertion/pulling portion 52 .

According to this configuration, the speed of discharging the resin-coated material to the core yarn portion 42 can be increased by the gear pump 46, so that the pulling speed of the core yarn portion 42 can also be increased. Improve productivity. In addition, since the ejection amount and the ejection speed can be freely adjusted from a resin coating material with a low viscosity to a resin coating material with a high viscosity when melted (liquefied), the highly uniform resin-coated yarn 41 can be manufactured at high speed. can be done.

(Manufacturing method of socks 1)
FIG. 10 is a flow chart showing the procedure of the method of manufacturing the sock 1 using the resin-coated yarn 41. As shown in FIG. First, the toe portion 11, the toe portion 12, and the heel portion 13 of the sock 1 described above with reference to FIG. (step S4). Then, heat corresponding to a temperature higher than the melting point of the resin coat layer 43 is applied to the knitted sock 1 by high-temperature steam (step S5). Therefore, the resin coat layer 43 melts.

Next, the sock 1 is cooled (step S6). As a result, the shape of the sock 1 is adjusted, and a part of the melted resin coat layer 43 is solidified to form a melted and solidified area that prevents the sock 1 from slipping on the contact object. As a result, it is possible to manufacture the sock 1 that can sufficiently maintain the anti-slip effect.

(Friction test result)
FIG. 11 is a schematic diagram showing a friction test apparatus for the material forming the resin coat layer 43 of the resin coat yarn 41. As shown in FIG. FIG. 12 is a graph showing the friction test results of the material forming the resin coat layer 43. As shown in FIG.

This friction test was carried out according to JIS K 7125 using a friction test apparatus shown in FIG. A friction test was performed using three types of samples H02, H03, and H04 obtained by melting the resin forming the resin coat layer 43 that coats the core thread portion 42 and solidifying it into a sheet. Since the one-layer coat type resin-coated yarn 41 suppresses the adhesiveness to the extent that it can be knitted by a knitting machine, it cannot be measured by the "peel test", so only the "friction test" was performed.

[Table 1] below shows the pressing conditions for each sample H02, H03, and H04, including pressure, temperature, and time.

下記の[表２]に、作製した各試料Ｈ０２・Ｈ０３・Ｈ０４のシート厚を示す。樹脂の粘度により、シート厚０．５ｍｍ以上のシートを作製した。

[Table 2] below shows the sheet thickness of each of the samples H02, H03, and H04 produced. A sheet having a thickness of 0.5 mm or more was produced depending on the viscosity of the resin.

下記の[表３]に、測定した各試料Ｈ０２・Ｈ０３・Ｈ０４の静摩擦係数、動摩擦係数等を示す。

[Table 3] below shows the static friction coefficient, dynamic friction coefficient, etc. of the samples H02, H03, and H04 that were measured.

力は直線的に増加して摩擦を与え、最大荷重に達する。このピーク値が静摩擦力Ｆ_Ｓを表す。静摩擦係数μ_ｓは次の（式１）で与えられる。

Force increases linearly to provide friction and reaches maximum load. This peak value represents the static friction force _FS . The static friction coefficient _μs is given by the following (Equation 1).

μ _s = F _S /F _P (Equation 1),
Here, F _S : static friction force (N),
F _P : normal force (=1.96 N) caused by the mass of the sliding piece,
is.

The frictional force exerted during sliding motion often deviates from the constant value that appears in ideal conditions due to secondary effects related to increased travel distance. The dynamic friction force F _D is the average value up to the first 6 cm after the start of the relative shearing motion between the contact surfaces, ignoring the peak F _S of the static friction force. The dynamic friction coefficient μ _D is calculated from the dynamic friction force using the following (Equation 2).

μ _D =F _D /F _P (Formula 2),
Here, F _D : dynamic frictional force (N),
F _P : normal force (=1.96 N) caused by the mass of the sliding piece,
is.

Sample H02 has a high coefficient of static friction of 0.84. In addition, sample H03 has a high coefficient of static friction of 1.20. Sample H04 has a high coefficient of static friction of 1.13. Therefore, Samples H02, H03 and H04 all have good adhesiveness and anti-slip effect.

Even if the samples H02, H03, H04 are coated on the core yarn portion 42 and then melted and solidified, or if the samples H02, H03, H04 are melted and solidified as they are, the adhesiveness of the samples H02, H03, H04 is the same. It is believed that there is.

For this reason, a knitting and weaving process of knitting and weaving the resin coat yarn 41 in which the core yarn portion 42 is coated with the resin coat layer 43 configured using any of the samples H02, H03, and H04, and the resin knitted and woven in this knitting and weaving process. A melting step of heating and melting the resin coat layer 43 of the coat yarn 41, and cooling the resin coat layer 43 melted in this melting step to form a melted and solidified region that prevents slippage between contact objects. The textile product manufactured by the manufacturing method shown in FIGS. 4 and 10, which includes the forming step, has the effect of being less likely to slip off the skin and less likely to come off.

(Configuration of sock knitted fabric using resin-coated yarn 41)
13(a) is an enlarged surface view of the knitted fabric 61 of a sock using the resin-coated yarn 41 before melting and solidifying, of the front yarn side, (b) is an enlarged cross-sectional view thereof, and (c) is the back side thereof. It is an enlarged back view of the thread side. The same reference numerals are given to the same components as those described above, and detailed description thereof will not be repeated.

The knitted fabric 61 is knitted with the resin-coated yarn 41 serving as the front yarn and the resin-coated yarn 41 serving as the back yarn. The resin-coated yarn 41, which is the front yarn, is drawn in white, and the resin-coated yarn 41, which is the back yarn, is drawn in gray so that the difference between the front yarn and the back yarn can be seen. As for the core yarn 42, both the resin-coated yarn 41 of the front yarn and the resin-coated yarn 41 of the back yarn are indicated by broken lines. The resin-coated yarn 41 of the front yarn is arranged on the side of the sock contacting the shoe and the floor. The resin-coated thread 41 of the back thread is arranged on the side of the sock that contacts the wearer's foot.

14(a) is an enlarged surface view of the knitted fabric 61 of socks using the resin-coated yarn 41 after melting and solidification, (b) is an enlarged cross-sectional view thereof, and (c) is an enlarged cross-sectional view thereof. It is an enlarged back view of the thread side.

As shown in FIGS. 13A to 13C described above, the resin coat layer 43 of the resin-coated yarn 41 of the front yarn and the resin-coated yarn 41 of the back yarn knitted in the knitting and weaving process are After being heated and melted in the melting process, the melted and solidified region 60, which is cooled and prevents slippage between the sock and the contact object, is formed on the core yarn 42 as shown in FIGS. It is formed over the front side and the back side of the knitted fabric 61 so as to fill the gap between. In this manner, the melt-solidified region 60 is formed integrally with the resin coat layer 43 of the front yarn and the resin coat layer 43 of the back yarn from the same material as the resin coat layer 43 of the front yarn and the resin coat layer 43 of the back yarn. be done.

In this way, the core yarn 42 of the front yarn and the core yarn 42 of the back yarn are not melted and remain unmelted in a thread state, and the melted resin coat layer 43 is prevented from melting down. A melt-solidified region portion 60 is formed across the back side. By using the resin-coated yarn 41 as the front yarn, a non-slip function is produced between the shoe and the outer surface of the sock. In addition, by using the resin-coated thread 41 as the back thread, a non-slip function is produced between the wearer's foot and the inner surface of the sock. Therefore, it is possible to obtain a sock having a knitted fabric 61 that is hard to slip on shoes and the floor and hard to come off from the foot.

FIG. 15(a) is an enlarged surface view of the knitted fabric 61A for socks using the resin-coated yarn 41 before melting and solidifying, of the front yarn side, (b) is an enlarged cross-sectional view thereof, and (c) is the back side thereof. It is an enlarged back view of the thread side. The same reference numerals are given to the same components as those described above, and detailed description thereof will not be repeated.

The knitted fabric 61A uses the resin-coated yarn 41 as the front yarn and the non-melting yarn 62 as the back yarn. The non-melting yarns 62 are yarns other than the resin-coated yarns 41 used when knitting socks, which have a good texture, and have a higher melting point than the melting point of the resin coat layer 43 of the resin-coated yarns 41 and the heating temperature in the melting process. have.

In order to distinguish between the front yarn and the back yarn, the resin-coated yarn 41, which is the front yarn, is drawn in gray, and the non-melting yarn 62, which is the back yarn, is drawn in white. The core yarn 42 of the resin-coated yarn 41 of the front yarn is indicated by a broken line. The resin-coated yarn 41 of the front yarn is arranged on the side of the sock contacting the shoe and the floor. The non-melting yarn 62 of the back yarn is arranged on the side of the sock that contacts the wearer's foot.

FIG. 16(a) is an enlarged surface view of the knitted fabric 61A for socks using the resin-coated yarn 41 after melting and solidification, (b) is an enlarged cross-sectional view thereof, and (c) is an enlarged cross-sectional view thereof. It is an enlarged back view of the thread side.

As shown in FIGS. 15(a) to 15(c), the resin-coated yarn 41 as the front yarn and the non-melting yarn 62 as the back yarn are knitted in the knitting and weaving process. Then, after the resin coating layer 43 of the resin coating yarn 41 is heated and melted in the melting process, the melted and solidified region 60 is cooled to prevent slipping between the sock and the contact object. As shown in (c), it is formed on the front side of the knitted fabric 61A so as to fill the space between the core yarns 42. As shown in FIG. Thus, the melt-solidified region portion 60 is formed integrally with the resin coat layer 43 of the front yarn from the same material as the resin coat layer 43 of the front yarn.

In this way, the core yarn 42 of the front yarn and the non-melting yarn 62 of the back yarn are not melted and remain unmelted, and by preventing the melted resin coat layer 43 from melting down, the melted and solidified region is formed on the front side of the knitted fabric 61A. 60 is formed. By using the resin-coated yarn 41 as the front yarn, a non-slip function is produced between the shoe and the outer surface of the sock. In addition, since the yarn portion of the non-melting yarn 62 is exposed on the back yarn, the feel of the yarn remains and it is possible to obtain a sock that is comfortable to wear.

FIG. 17(a) is an enlarged surface view of the knitted fabric 61B of a sock using the resin-coated yarn 41 before melting and solidifying on the front yarn side, (b) is an enlarged cross-sectional view thereof, and (c) is the back side thereof. It is an enlarged back view of the thread side. The same reference numerals are given to the same components as those described above, and detailed description thereof will not be repeated.

The knitted fabric 61B uses the non-melting yarn 62 as the front yarn and the resin-coated yarn 41 as the back yarn. The non-melting yarns 62 are yarns other than the resin-coated yarns 41 used when knitting socks, which have a good texture, and have a higher melting point than the melting point of the resin coat layer 43 of the resin-coated yarns 41 and the heating temperature in the melting process. have.

In order to distinguish between the front yarn and the back yarn, the non-melting yarn 62, which is the front yarn, is drawn in white, and the resin-coated yarn 41, which is the back yarn, is drawn in gray. The core thread 42 of the resin-coated thread 41 of the back thread is indicated by a broken line. The non-melting thread 62 of the front thread is arranged on the side of the sock that contacts the shoe and the floor. The resin-coated thread 41 of the back thread is arranged on the side of the sock that contacts the wearer's foot.

FIG. 18(a) is an enlarged surface view of the knitted fabric 61B for socks using the resin-coated yarn 41 after melting and solidification, (b) is an enlarged cross-sectional view thereof, and (c) is an enlarged cross-sectional view thereof. It is an enlarged back view of the thread side.

As shown in FIGS. 17A to 17C, the non-melting yarn 62 of the front yarn and the resin-coated yarn 41 of the back yarn are knitted in the knitting and weaving process. Then, after the resin coat layer 43 of the resin coat yarn 41 is heated and melted in the melting process, the melted and solidified region 60 is cooled to prevent slipping between the sock and the contact object. As shown in (c), it is formed on the back side of the knitted fabric 61B so as to fill the space between the core yarns 42. As shown in FIG. Thus, the melt-solidified region 60 is formed integrally with the resin coat layer 43 of the back thread from the same material as the resin coat layer 43 of the back thread.

In this way, the core yarn 42 of the back yarn and the non-melting yarn 62 of the front yarn are not melted and remain unmelted, and by preventing the melted resin coat layer 43 from melting down, the melted and solidified region is formed on the back side of the knitted fabric 61B. 60 are formed. By using the resin-coated thread 41 as the back thread, a non-slip function is produced between the wearer's foot and the inner surface of the sock. In addition, since the yarn portion of the non-melting yarn 62 is exposed on the front yarn, it is possible to obtain a sock with a good appearance and excellent appearance.

FIG. 19(a) is an enlarged surface view of the knitted fabric 61C of a sock using the resin-coated yarn 41 before melting and solidifying on the front yarn side, (b) is an enlarged cross-sectional view thereof, and (c) is the back side thereof. It is an enlarged back view of the thread side. The same reference numerals are given to the same components as those described above, and detailed description thereof will not be repeated.

The knitted fabric 61C uses the resin-coated yarn 41 for the front yarn and does not have the back yarn. The resin-coated yarn 41, which serves as the front yarn, is drawn in gray. The core thread 42 is indicated by a dashed line.

FIG. 20(a) is an enlarged surface view of the knitted fabric 61C of the sock using the resin-coated yarn 41 after melting and solidification, (b) is an enlarged cross-sectional view thereof, and (c) is the back side thereof. It is an enlarged back view of the thread side.

As shown in FIGS. 19A to 19C, the resin-coated yarn 41 of the front yarn is knitted in the knitting and weaving process. Then, after the resin coat layer 43 of the resin coat yarn 41 is heated and melted in the melting process, the melted and solidified region 60 is cooled to prevent slippage between the sock and the contact object. As shown in (c), it is formed over the front side and the back side of the knitted fabric 61C so as to fill the space between the core yarns . Thus, the melt-solidified region portion 60 is formed integrally with the resin coat layer 43 of the front yarn from the same material as the resin coat layer 43 of the front yarn.

In this way, the core yarn 42 of the front yarn is not melted and remains unmelted, and the melted resin coat layer 43 is prevented from melting down, so that the melted and solidified region 60 is formed over the front side and the back side of the knitted fabric 61C. be. Therefore, it is possible to obtain a sock having a knitted fabric 61C that is hard to slip on shoes and floors and hard to come off from the foot.

The knitted fabrics 61, 61A, 61B, and 61C described above may be used in at least a partial area of the sock, may be used in the entire sock, or may be used only in a partial area of the sock. good too.

[Embodiment 3]
Embodiment 3 of the present invention will be described in detail below with reference to FIGS. 21 to 38. FIG.

(Double-layer coated yarn 44, structure of textile product)
FIG. 21 is a cross-sectional view showing an example of a two-layer coated yarn 44 according to Embodiment 3. FIG. The same reference numerals are given to the same components as those described above, and detailed description thereof will not be repeated.

The two-layer coated yarn 44 includes a core yarn portion 42 formed of fibers, a resin coat layer 43 (first resin coat layer) covering the core yarn portion 42, and a water-soluble resin layer 45 covering the resin coat layer 43. (second resin coat layer). The resin coating layer 43 contains a thermoplastic resin and an adhesion enhancer that enhances the adhesion of the thermoplastic resin to prevent slippage between the thermoplastic resin and the contacting object.

The two-layer coated yarn 44 corresponds to the core-sheath composite yarn 10 having the second sheath described in Modification 4 of Embodiment 1, and the water-soluble resin layer 45 corresponds to the second sheath.

Since the water-soluble resin layer 45 has thermoplasticity, it can be coated with the resin coat layer 43 . Since the water-soluble resin layer 45 is water-soluble, it can be removed from the resin coat layer 43 by applying steam. Since the water-soluble resin layer 45 has a low coefficient of dynamic friction, it can be easily knitted by a knitting machine. For example, since water-soluble EVA resin satisfies the above conditions, the water-soluble resin layer 45 preferably contains water-soluble EVA resin.

(Manufacturing method of double-layer coated yarn 44)
FIG. 22 is a schematic diagram for explaining the method of manufacturing the two-layer coated yarn 44. FIG. The same reference numerals are given to the same components as those described above, and detailed description thereof will not be repeated.

First, a first resin coating material containing a thermoplastic resin and an adhesion enhancer for enhancing the adhesive strength of the thermoplastic resin is put into a resin tank (not shown) in the melter 50, and the resin tank is heated. Liquefy the first resin coat material.

Then, the liquefied first resin coating material is extruded by the gear pump 46 provided in the melter 50 and supplied to the nozzle 47 . Next, the first resin coat material extruded by the gear pump 46 and supplied to the nozzle 47 is discharged around the core yarn portion 42 supplied to the nozzle 47 to coat the core yarn portion 42 with the resin coat layer 43 ( First resin coat layer) is formed.

Thereafter, the resin-coated yarn 41 having the resin-coated layer 43 formed thereon is supplied to the water tank 51 , and the resin-coated yarn 41 is cooled by the water in the water tank 51 . Then, the resin-coated yarn 41 whose resin-coated layer 43 has been cooled is supplied to the nozzle 47A through the yarn insertion part 52 and the roller 54 .

Next, the liquefied second resin coating material is extruded by a gear pump provided in the melter 50A and supplied to the nozzle 47A. Instead of the melter 50A, an extruder may be used to supply the second resin coating material to the nozzle 47A.

Next, the second resin coating material extruded by the gear pump and supplied to the nozzle 47A is discharged around the resin coating layer 43 of the resin coating yarn 41 supplied to the nozzle 47A to cover the resin coating layer 43. A two-layer coated yarn 44 having a flexible resin layer 45 (second resin coat layer) is formed. The water-soluble resin layer 45 of the two-layer coated yarn 44 is naturally cooled. Then, the two-layer coat yarn 44 is wound around the winding portion 53 via the yarn insertion/pulling portion 52 .

The water-soluble resin layer 45 covering the resin coat layer 43 of the two-layer coated yarn 44 manufactured by this manufacturing method has a low coefficient of dynamic friction. Therefore, the frictional force generated when the two-layer coat yarn 44 and the yarn path of the knitting machine rub against each other is reduced, and the two-layer coat yarn 44 is delivered uniformly. Therefore, the occurrence of defects and yarn breakage is reduced, making it easier to knit the two-layer coated yarn 44 with a knitting machine.

(Manufacturing method of socks 1)
FIG. 23 is a flow chart showing the steps of the method of manufacturing the sock 1 using the double-layer coat yarn 44. As shown in FIG. First, the toe portion 11, the toe portion 12, and the heel portion 13 of the sock 1 described above with reference to FIG. .

Next, it is selected whether or not the resin coat layer 43 of the two-layer coat yarn 44 of the toe portion 11, the toe portion 12, and the heel portion 13 of the sock 1 is to be melted and resinified (step S8). If the type in which the resin coat layer 43 is made of resin is selected (Yes in step S8), the temperature of the water vapor applied to the knitted sock 1 is set to a temperature higher than the melting point of the resin coat layer 43 (step S9). Next, steam is applied to the sock 1 knitted from the two-layer coat yarn 44, and the water-soluble resin layer 45 of the two-layer coat yarn 44 knitted to the toe portion 11, the toe portion 12, and the heel portion 13 of the sock 1 is applied. is removed from the resin coat layer 43 . Then, the resin coat layer 43, which has a melting point lower than the temperature of steam, melts and becomes resin (step S10). After that, when the sock 1 is cooled, a melted and solidified region is formed in which a part of the melted resin coat layer 43 is solidified (step S11).

As a result, it is possible to obtain the sock 1 in which a melted and solidified region is formed to prevent slippage between the sock and the contact object. This melted and solidified region prevents the sock from slipping off the wearer's skin and improves the grip of the sock on the wearer's skin.

When the two-layer coat yarn 44 is knitted, the water-soluble resin layer 45 before removal reduces the dynamic friction force generated when the two-layer coat yarn 44 and the yarn path of the knitting machine rub against each other, making it easier to knit with the knitting machine. Become. After knitting, the static frictional force of the resin coat layer 43 exposed after the removal of the water-soluble resin layer 45 is large, so slippage with the contact object is prevented.

If the type in which the resin coat layer 43 is not resinified is selected (No in step S8), the temperature of the water vapor applied to the sock 1 is set to a temperature lower than the melting point of the resin coat layer 43 (step S12). Next, steam is applied to the knitted sock 1, and the water-soluble resin layer 45 of the two-layer coat yarn 44 knitted to the toe portion 11, the ball portion 12, and the heel portion 13 of the sock 1 is removed from the resin coat layer 43. Remove. The resin coat layer 43 does not melt because its melting point is higher than the temperature of water vapor (step S13). After that, the sock 1 is cooled (step S14). As a result, since the resin coat layer 43 exposed by removing the water-soluble resin layer 45 has a large static frictional force, it is possible to obtain the sock 1 that is prevented from slipping on the contact object.

In this way, the two-layer coated yarn 44 having the resin coating layer 43 with a high friction coefficient coated with the water-soluble resin layer 45 with a low friction coefficient is knitted and woven to a desired portion of the textile product and heat-set. The water-soluble resin layer 45 is removed. As a result, the resin coating layer 43 with a high coefficient of friction is exposed, and the sock 1 with a high anti-slip effect can be obtained.

According to this manufacturing method, the shape of the sock 1 is adjusted by applying high-temperature steam to the sock 1 and then cooling the sock. Then, the water-soluble resin layer 45 is removed, and a part of the melted resin coat layer 43 is solidified to form a melted and solidified region that prevents the sock 1 from slipping on the contact object. As a result, it is possible to manufacture the sock 1 that can sufficiently maintain the anti-slip effect.

The component of the water-soluble resin layer 45 is not particularly limited as long as it is a water-soluble resin. Since the water-soluble resin layer 45 is applied to the resin coat layer 43 by the melter 50A or the extruder, it must have thermoplasticity.

The water-soluble resin layer 45 is removed from the resin coat layer 43 by heat setting with high-temperature steam after weaving.

When the resin coat layer 43 is not resinified, the melting point of the water-soluble resin layer 45 is preferably lower than the melting point of the resin coat layer 43 . In this case, if the temperature during heat setting is set higher than the melting point of the water-soluble resin layer 45 and lower than the melting point of the resin coat layer 43, the resin coat layer 43 will not be resinified, so that the stretchability of the fabric can be maintained. , can provide legwear with a good fit.

When the resin coat layer 43 is resinified, the melting point of the water-soluble resin layer 45 is preferably equal to or higher than the melting point of the resin coat layer 43 . In this case, the resin coat layer 43 is melted at the same time as the water-soluble resin layer 45 is removed, and is cooled to form a melt-solidified region. The sticky melted and solidified region has a wider area in contact with the skin than the sticky resin coat layer 43 knitted and woven with threads. Therefore, it is possible to obtain legwear having a higher anti-slip effect.

Thus, the water-soluble resin layer 45 is removed from the resin coat layer 43 by heat setting. The conditions for this heat setting include, for example, the condition that the water-soluble resin layer 45 is exposed to steam of about 100° C. for about 10 to 25 seconds. The heat setting conditions, steam temperature and time can be appropriately changed according to the melting point of the resin coat layer 43, the melting point of the water-soluble resin layer 45, and the heat-resisting properties of other knitting and weaving yarns.

However, the water-soluble resin layer 45 can also be removed by exposure to liquid water instead of heat setting. For example, the water-soluble resin layer 45 can be removed by soaking in hot water of 60° C. to 80° C. for 5 to 15 minutes. As a result, the water-soluble resin layer 45 can be removed without using heat setting in a knitted or woven fabric using a knitting or weaving yarn that is vulnerable to heat.

Also, instead of the water-soluble resin layer 45, a resin having a lower melting point than the olefin-based resin of the resin coat layer 43 can be used. As a result, the second resin coat layer can be removed from the first resin coat layer (resin coat layer 43) by exposing to heat instead of water vapor during heat setting.

(Peeling test result)
24(a) to (d) are images for explaining the peel test method of the material forming the resin coat layer 43 of the two-layer coat yarn 44. FIG. The test method for this peel test complies with JIS Z 0237. Three types of samples HM-A, HM-C, and HM-D of the resin constituting the resin coat layer 43 of the two-layer coat yarn 44 were used to conduct a peel test. The size of each sample HM-A, HM-C, and HM-D was 10 mm wide by about 300 mm long. The pulling speed was 5±2 mm/s. The ends of the test piece of each sample were clamped with clips as shown in FIG. Since the two-layer coat type yarn 44 has higher adhesiveness than the resin-coated yarn 41, it cannot be measured by the "friction test", so only the "peeling test" was performed.

[Table 4] below shows the thickness of each sample HM-A, HM-C, and HM-D.

下記[表５]に上記剥離試験で測定された引き剥がし粘着力を示す。

The following [Table 5] shows the peel adhesive strength measured in the peel test.

図２５は樹脂コート層４３を構成する試料ＨＭ－Ａの剥離試験結果を示すグラフである。図２６は樹脂コート層４３を構成する試料ＨＭ－Ｃの隔離試験結果を示すグラフである。図２７は樹脂コート層４３を構成する試料ＨＭ－Ｄの隔離試験結果を示すグラフである。

FIG. 25 is a graph showing the peel test results of sample HM-A constituting the resin coat layer 43. As shown in FIG. FIG. 26 is a graph showing isolation test results of the sample HM-C forming the resin coat layer 43. As shown in FIG. FIG. 27 is a graph showing the isolation test results of the sample HM-D forming the resin coat layer 43. As shown in FIG.

Measurements of the first 25 mm of stroke for each sample were excluded. The average value of 50 mm of peeling of the test piece after that was taken as the peeling adhesive strength. However, in this test, the peel distance was insufficient for the JIS Z 0237 standard, so the average value was calculated from the peelable range.

An additional peeling test was carried out by attaching a cocopita sewn fabric to the sheet in order to reduce the elongation of the sheet of the test piece of each sample. [Table 6] below shows the peel adhesive strength measured in the additional peel test.

図２８は樹脂コート層４３を構成する試料ＨＭ－Ａの追加隔離試験結果を示すグラフである。図２９は樹脂コート層４３を構成する試料ＨＭ－Ｃの追加隔離試験結果を示すグラフである。図３０は樹脂コート層４３を構成する試料ＨＭ－Ｄの追加隔離試験結果を示すグラフである。

FIG. 28 is a graph showing the additional isolation test results of the sample HM-A forming the resin coat layer 43. As shown in FIG. FIG. 29 is a graph showing the additional isolation test results of the sample HM-C forming the resin coat layer 43. As shown in FIG. FIG. 30 is a graph showing the additional isolation test results of the sample HM-D constituting the resin coat layer 43. As shown in FIG.

Sample HM-A was able to secure a peeling distance by attaching the sewn fabric. Therefore, the average value was calculated according to the JIS Z 0237 standard. As for Sample HM-C and Sample HM-D, the peel distance was short of the above standard, so the average value was calculated from the peelable range.

Sample HM-A has a high peel adhesive strength of 3.7 N/cm. Further, sample HM-C has a high peel adhesive strength of 6.4 N/cm. Sample HM-D has a high peel adhesive strength of 12.8 N/cm. Therefore, Samples HM-A, HM-C and HM-D all have good adhesiveness and anti-slip effect.

Even if the samples HM-A, HM-C, and HM-D are coated on the core yarn portion 42 and then melted and solidified, or if the samples HM-A, HM-C, and HM-D are melted and solidified as they are, The tackiness of samples HM-A, HM-C and HM-D are believed to be similar.

Therefore, a first core yarn portion formed of fibers and a first resin coat layer formed using any one of the samples HM-A, HM-C, and HM-D and covering the first core yarn portion and a second core yarn portion formed of the fiber, a second resin coat layer formed of the same material as the first resin coat layer and covering the second core yarn portion, and a contact object. A textile product comprising a melt-solidified region part formed integrally with the first and second resin coat layers from the same material as the first and second resin coat layers so as to prevent slippage between them , the effect that it is difficult to slip off the skin and difficult to come off.

(Construction of Knitted Fabric of Socks Using Double-Layered Coat Yarn 44)
31(a) is an enlarged surface view of the front yarn side of a sock knitted fabric 71 using the two-layer coat yarn 44 before melting and solidification, (b) is an enlarged cross-sectional view thereof, and (c) thereof. It is an enlarged back view of the back thread side. The same reference numerals are given to the same components as those described above, and detailed description thereof will not be repeated.

The knitted fabric 71 is knitted with the two-layer coat yarn 44 serving as the front yarn and the two-layer coat yarn 44 serving as the back yarn. The two-layer coat yarn 44, which is the front yarn, is drawn in white, and the double-layer coat yarn 44, which is the back yarn, is drawn in gray so that the difference between the front yarn and the back yarn can be understood. As for the core yarn 42, both the two-layer coated yarn 44 of the front yarn and the two-layer coated yarn 44 of the back yarn are indicated by broken lines. The two-layer coated yarn 44 of the front yarn is arranged on the side of the sock that contacts the shoe and the floor. The resin-coated thread 44 of the back thread is arranged on the side of the sock that contacts the wearer's foot.

FIG. 32(a) is an enlarged surface view of the knitted fabric 71 of socks using the two-layer coat yarn 44 after melting and solidification, (b) is an enlarged cross-sectional view thereof, and (c) thereof. It is an enlarged back view of the back thread side.

The water-soluble resin layer 45 of the two-layer coated yarn 44 of the front yarn and the water-soluble resin of the two-layer coated yarn 44 of the back yarn knitted in the knitting and weaving process as shown in FIGS. Layer 45 is removed from resin coat layer 43 by melting under exposure to steam or water. Then, after the resin coat layer 43 of the two-layer coat yarn 44 of the front yarn and the resin coat layer 43 of the two-layer coat yarn 44 of the back yarn are heated and melted, they are cooled, and the contact object of the sock A melted and solidified region 60 for preventing slippage is formed over the front side and the back side of the knitted fabric 71 so as to fill the space between the core yarns 42, as shown in FIGS. In this manner, the melt-solidified region 60 is formed integrally with the resin coat layer 43 of the front yarn and the resin coat layer 43 of the back yarn from the same material as the resin coat layer 43 of the front yarn and the resin coat layer 43 of the back yarn. be done.

In this way, the core yarn 42 of the front yarn and the core yarn 42 of the back yarn are not melted and remain unmelted in a thread state, and the melted resin coat layer 43 is prevented from melting down. A melt-solidified region portion 60 is formed across the back side. By using the two-layer coated yarn 44 as the front yarn, a non-slip function is produced between the shoe and the outer surface of the sock. In addition, by using the two-layer coated yarn 44 as the back yarn, a non-slip function is produced between the wearer's foot and the inner surface of the sock. Therefore, it is possible to obtain a sock having a knitted fabric 71 that is hard to slip on shoes and the floor and hard to come off from the foot.

33(a) is an enlarged surface view of the knitted fabric 71A of a sock using the two-layer coat yarn 44 before melting and solidifying on the front yarn side, (b) is an enlarged cross-sectional view thereof, and (c) thereof. It is an enlarged back view of the back thread side. The same reference numerals are given to the same components as those described above, and detailed description thereof will not be repeated.

The knitted fabric 71A uses the two-layer coat yarn 44 as the front yarn and the non-melting yarn 62 as the back yarn. The non-melting yarns 62 are yarns other than the two-layer coat yarns 44 used when knitting socks, which have a good texture, and have a higher melting point than the resin coat layer 43 of the two-layer coat yarns 44 .

The two-layer coat yarn 44, which is the front yarn, is drawn in gray, and the non-melting yarn 62, which is the back yarn, is drawn in white so that the difference between the front yarn and the back yarn can be seen. The core yarn 42 of the two-layer coated yarn 44 of the front yarn is indicated by a broken line. The two-layer coated yarn 44 of the front yarn is arranged on the side of the sock that contacts the shoe and the floor. The non-melting yarn 62 of the back yarn is arranged on the side of the sock that contacts the wearer's foot.

FIG. 34(a) is an enlarged surface view of the knitted fabric 71A of socks using the double-layer coat yarn 44 after melting and solidification, of the front yarn side, (b) is an enlarged cross-sectional view thereof, and (c) thereof. It is an enlarged back view of the back thread side.

As shown in FIGS. 33(a) to 33(c), the two-layer coated yarn 44 as the front yarn and the non-melting yarn 62 as the back yarn are knitted in the knitting and weaving process. Then, the water-soluble resin layer 45 of the two-layer coated thread 44 is removed from the resin coat layer 43 by being melted by applying steam or water. Then, after the resin coat layer 43 of the two-layer coat yarn 44 of the front yarn is heated and melted, it is cooled, and the melted and solidified region 60 that prevents slippage between the sock and the contact object is formed as shown in FIG. 34(a). As shown in (c), it is formed on the front side of the knitted fabric 71A so as to fill the spaces between the core yarns 42. As shown in FIG. Thus, the melt-solidified region portion 60 is formed integrally with the resin coat layer 43 of the front yarn from the same material as the resin coat layer 43 of the front yarn.

In this way, the core yarn 42 of the front yarn and the non-melting yarn 62 of the back yarn are not melted and remain unmelted, and by preventing the melted resin coat layer 43 from melting down, the melted and solidified region is formed on the front side of the knitted fabric 71A. 60 is formed. By using the two-layer coated yarn 44 as the front yarn, a non-slip function is produced between the shoe and the outer surface of the sock. In addition, since the yarn portion of the non-melting yarn 62 is exposed on the back yarn, the feel of the yarn remains and it is possible to obtain a sock that is comfortable to wear.

35(a) is an enlarged surface view of the knitted fabric 71B of a sock using the two-layer coat yarn 44 before being melted and solidified on the front yarn side, (b) is an enlarged cross-sectional view thereof, and (c) thereof. It is an enlarged back view of the back thread side. The same reference numerals are given to the same components as those described above, and detailed description thereof will not be repeated.

The knitted fabric 71B uses the non-melting yarn 62 as the front yarn and the double-layer coat yarn 44 as the back yarn. The non-melting yarn 62 is a yarn that has a good texture other than the two-layer coat yarn 44 used when knitting socks, and has a higher melting point than the melting point of the resin coat layer 43 of the two-layer coat yarn 44 and the heating temperature in the melting process. It has a melting point.

In order to distinguish between the front yarn and the back yarn, the non-melting yarn 62, which is the front yarn, is drawn in white, and the two-layer coat yarn 44, which is the back yarn, is drawn in gray. The core yarn 42 of the two-layer coated yarn 44 of the back yarn is indicated by a broken line. The non-melting thread 62 of the front thread is arranged on the side of the sock that contacts the shoe and the floor. The two-layer coated yarn 44 of the back yarn is arranged on the side of the sock that contacts the wearer's foot.

FIG. 36(a) is an enlarged surface view of the knitted fabric 71B of socks using the two-layer coat yarn 44 after melting and solidification, (b) is an enlarged cross-sectional view thereof, and (c) thereof. It is an enlarged back view of the back thread side.

As shown in FIGS. 35(a) to 35(c), the non-melting yarn 62 of the front yarn and the two-layer coated yarn 44 of the back yarn are knitted in the knitting and weaving process. Then, the water-soluble resin layer 45 of the two-layer coated thread 44 is removed from the resin coat layer 43 by being melted by applying steam or water. Then, after the resin coat layer 43 of the two-layer coat yarn 44 of the back yarn is heated and melted, it is cooled to form a melted and solidified region 60 that prevents slippage between the sock and the contact object, as shown in FIG. As shown in (c), it is formed on the back side of the knitted fabric 71B so as to fill the space between the core yarns 42. As shown in FIG. Thus, the melt-solidified region 60 is formed integrally with the resin coat layer 43 of the back thread from the same material as the resin coat layer 43 of the back thread.

In this way, the non-melting yarn 62 of the front yarn and the core yarn 42 of the back yarn are not melted and remain unmelted, and the melted resin coat layer 43 is prevented from melting down. 60 is formed. By using the two-layer coated yarn 44 as the back yarn, a non-slip function is produced between the wearer's foot and the inner surface of the sock. In addition, since the yarn portion of the non-melting yarn 62 is exposed on the front yarn, it is possible to obtain a sock with a good appearance and excellent appearance.

FIG. 37(a) is an enlarged surface view of the knitted fabric 71C of a sock using the double-layer coat yarn 44 before melting and solidifying on the front yarn side, (b) is an enlarged cross-sectional view thereof, and (c) thereof. It is an enlarged back view of the back thread side. The same reference numerals are given to the same components as those described above, and detailed description thereof will not be repeated.

The knitted fabric 71C uses the two-layer coat yarn 44 as the front yarn and does not have the back yarn. The two-layer coat yarn 44, which serves as the front yarn, is drawn in gray. The core thread 42 is indicated by a dashed line.

FIG. 38(a) is an enlarged surface view of the knitted fabric 71C of a sock using the two-layer coat yarn 44 after melting and solidification, of the front yarn side, (b) is an enlarged cross-sectional view thereof, and (c) thereof. It is an enlarged back view of the back thread side.

As shown in FIGS. 37(a) to 37(c), the two-layer coat yarn 44 of the front yarn is knitted in the knitting and weaving process. Then, the water-soluble resin layer 45 of the two-layer coated thread 44 is removed from the resin coat layer 43 by being melted by applying steam or water. Then, after the resin coat layer 43 of the two-layer coat yarn 44 is heated and melted in the melting process, it is cooled, and the melted and solidified region 60 that prevents slippage between the sock and the contact object is formed as shown in FIG. ) to (c), it is formed over the front side and the back side of the knitted fabric 71C so as to fill the space between the core yarns . Thus, the melt-solidified region portion 60 is formed integrally with the resin coat layer 43 of the front yarn from the same material as the resin coat layer 43 of the front yarn.

In this way, the core yarn 42 of the face yarn is left unmelted without being melted, and the melted and solidified regions 60 are formed on the front side and the back side of the knitted fabric 71C. Therefore, it is possible to obtain a sock having a knitted fabric 71C that is hard to slip on shoes and floors and hard to come off from the foot.

The knitted fabrics 71, 71A, 71B, and 71C described above may be used in at least a partial area of the sock, may be used in the entire sock, or may be used only in a partial area of the sock. good too.

〔summary〕
A method for producing a resin-coated yarn according to one aspect of the present invention includes a liquefying step of heating and liquefying a resin-coated material containing a thermoplastic resin and an adhesion enhancer that enhances the adhesive strength of the thermoplastic resin; A supply step of extruding the resin coating material liquefied by the step by a gear pump 46 and supplying it to the nozzle 47; and a coating step of forming a resin coat layer 43 that is coated around the core thread portion 42 to cover the core thread portion 42 .

As a result, the ejection amount and the ejection speed can be freely adjusted from resins with low melted viscosity to resins with high melted viscosity, so that resin-coated yarn with high uniformity can be produced at high speed.

The resin-coated yarn 41 according to one aspect of the present invention includes a core yarn portion 42 formed of fibers and a resin coat layer 43 that covers the core yarn portion 42, and the resin coat layer 53 is made of a thermoplastic resin. and an adhesion enhancer for enhancing adhesion of the thermoplastic resin to prevent slippage between the surface of the thermoplastic resin and a contact object.

This enhances the adhesion of the thermoplastic resin to prevent slippage between the surface of the thermoplastic resin and the contact object. Therefore, it is possible to provide a resin-coated yarn that maintains a sufficient anti-slip effect.

In the resin-coated yarn 41 according to one aspect of the present invention, the thermoplastic resin preferably contains an olefin resin.

This makes it possible to provide a resin-coated yarn that is gentle on the skin, since there is no need to use a solvent that may cause rough skin when the olefin-based resin is used for coating or forming a melt-solidified region.

In the resin-coated yarn 41 according to one aspect of the present invention, the static friction coefficient of the resin-coated layer 43 is preferably 0.84 or more and 1.20 or less.

As a result, it is possible to obtain a resin-coated yarn for constructing a textile product that is less likely to slip off the skin and is less likely to come off.

Textile products (socks 1 and 2) according to one aspect of the present invention are knitted and woven using the resin-coated yarn 41 according to one aspect of the present invention.

As a result, the adhesive strength of the textile product to the contact object is increased, and a textile product that is hard to slip and hard to come off can be obtained.

In the textile product according to one aspect of the present invention, the resin coat layer 43 includes a first resin portion and a second resin portion formed along the core thread portion 42 at a position different from the first resin portion. and a melt-solidified area portion formed integrally with the first and second resin portions from the same material as the first and second resin portions so as to prevent slippage between the contact object and the contact object. 60 is preferably formed.

As a result, the melted and solidified region prevents the fiber from slipping on the contacting object, so that a textile product can be obtained that can sufficiently maintain the anti-slip effect.

The textile product according to one aspect of the present invention further includes another resin-coated yarn 41 configured in the same manner as the resin-coated yarn 41, and the resin-coated yarn 41 that serves as the front yarn and the other resin that serves as the back yarn. Knitting and weaving with the coat yarn 41 is preferable.

As a result, it is possible to obtain a textile product that is hard to slip and hard to come off.

In the fiber product according to one aspect of the present invention, the resin coat layer 43 and the resin coat layer 43 are made of the same material as the resin coat layer 43 and the other resin coat layer 43 so as to prevent slippage between contact objects. It is preferable that the melt-solidified region portion 60 is formed integrally with the other resin coat layer 43 .

As a result, by using the resin-coated yarn as the front yarn, a non-slip function is produced between the contact object and the outer surface of the textile product. In addition, by using another resin-coated yarn for the back yarn, a non-slip function is produced between the wearer's skin of the textile product and the inner surface of the textile product.

It is preferable that the textile product according to one aspect of the present invention further includes a non-melting yarn 62 and is knitted from the resin-coated yarn 41 serving as the front yarn and the non-melting yarn 62 serving as the back yarn.

As a result, by using the resin-coated yarn as the front yarn, a non-slip function is produced between the contact object and the outer surface of the textile product. In addition, since the yarn portion of the non-melting yarn is exposed on the back yarn, the feel of the yarn remains and it is possible to obtain a textile product that is comfortable to wear.

It is preferable that the textile product according to one aspect of the present invention further includes a non-melting yarn 62 and is knitted from the non-melting yarn 62 serving as the front yarn and the resin-coated yarn 41 serving as the back yarn.

As a result, by using the resin-coated yarn for the back yarn, a non-slip function is produced between the wearer's skin and the inner surface of the textile product. In addition, since the yarn portion of the non-melting yarn is exposed on the front yarn, it is possible to obtain a textile product with a good appearance and excellent appearance.

In the textile product according to one aspect of the present invention, the resin coat layer 43 includes a first resin portion and a second resin portion formed along the core thread portion 42 at a position different from the first resin portion. and a melt-solidified area portion formed integrally with the first and second resin portions from the same material as the first and second resin portions so as to prevent slippage between the contact object and the contact object. 60 is preferably formed.

This enhances the anti-slip function.

In the textile product according to one aspect of the present invention, the textile product is preferably socks 1 and 2.

As a result, the adhesion of the sock to the contact object is increased, so that it is possible to obtain socks that are hard to slip and hard to come off, and to provide legwear that is hard to come off and slip off.

A textile product according to an aspect of the present invention is socks 1 and 2, wherein the socks 1 and 2 include a toe portion 11, a toe ball portion 12, and a heel portion 13, and the melt-solidified region portion Preferably, 60 is formed on at least one of the toe portion 11, the ball portion 12 and the heel portion 13. As shown in FIG.

As a result, the melted and solidified region for the leg wear that is hard to come off and slip off can be arranged in the main part of the sock.

A method for manufacturing a textile product according to one aspect of the present invention includes a knitting and weaving step of knitting and weaving the resin coated yarn 41 according to one aspect of the present invention, and heating the resin coat layer 43 of the resin coated yarn 41 knitted and woven in the knitting and weaving step. and a forming step of cooling the resin coat layer 43 melted in the melting step to form a melted and solidified region that prevents slippage between contact objects.

As a result, the melted and solidified region prevents slippage with the contacting object, so that it is possible to manufacture a textile product that can sufficiently maintain the anti-slip effect.

The two-layer coated yarn 44 according to one aspect of the present invention includes a core yarn portion 42 formed of fibers, a first resin coat layer (resin coat layer 43) covering the core yarn portion 42, and the first resin A second resin coat layer (water-soluble resin layer 45) covering the coat layer (resin coat layer 43) is provided, and the first resin coat layer (resin coat layer 43) contains a thermoplastic resin and the thermoplastic resin and an adhesion enhancer that enhances the adhesion of said thermoplastic resin to prevent slippage between it and a contact object.

Thereby, it is possible to provide a double-layer coated yarn in which the second resin coat layer is removed after knitting or weaving to expose the first resin coat layer that prevents slippage between the yarn and the contact object.

The two-layer coated yarn 44 according to one aspect of the present invention preferably has a peeling adhesive strength of the first resin coat layer of 3.7 N/cm or more and 12.8 N/cm or less.

As a result, it is possible to obtain a double-layer coated yarn for forming a textile product that is less likely to slip off the skin and is less likely to come off.

In the two-layer coated yarn 44 according to one aspect of the present invention, the thermoplastic resin preferably contains an olefin resin.

This makes it possible to provide a resin-coated yarn that is gentle on the skin, since there is no need to use a solvent that may cause rough skin when the olefin-based resin is used for coating or forming a melt-solidified region.

A method for producing a two-layer coated yarn according to an aspect of the present invention includes a liquefying step of heating and liquefying a first resin-coated material containing a thermoplastic resin and an adhesion enhancer that enhances the adhesive strength of the thermoplastic resin. , a first supply step in which the first resin coating material liquefied in the liquefaction step is extruded by the gear pump 46 and supplied to the first nozzle (nozzle 47); A first resin coat layer (resin coat layer 43) that coats the core yarn portion 42 formed of fibers by applying the first resin coat material supplied to the first a second supply step of supplying the liquefied second resin to a second nozzle (nozzle 47A); A second resin coat layer (water-soluble resin and a second coating step to form layer 45).

This makes it possible to manufacture a two-layer coated yarn in which the second resin coat layer is removed after knitting and weaving, and the first resin coat layer that prevents slippage with the contact object is exposed.

A method for manufacturing a textile product according to one aspect of the present invention includes a soluble resin in which the second resin coat layer (water-soluble resin layer 45) according to one aspect of the present invention has solubility, and A knitting and weaving process of knitting and weaving the two-layer coat yarn 44, and a fluid is applied to the two-layer coat yarn 44 knitted and woven in the knitting and weaving process to convert the soluble resin (water-soluble resin layer 45) into the first resin coat layer (resin It includes a removing step of removing from the coat layer 43) and a cooling step of cooling the knitted and woven first resin coat layer (resin coat layer 43) and core yarn portion .

As a result, the soluble resin, which has a low coefficient of dynamic friction and can be easily knitted with a knitting machine, can be removed after knitting is completed, and the first resin coat layer that prevents slippage between contact objects can be exposed.

In the method for manufacturing a textile product according to one aspect of the present invention, the soluble resin includes a water-soluble resin (water-soluble resin layer 45), and the removing step includes applying steam or water to the two-layer coated yarn 44. It is preferable to remove the water-soluble resin (water-soluble resin layer 45) from the first resin coat layer (resin coat layer 43) by dissolving the water-soluble resin (water-soluble resin layer 45).

Thereby, the second resin coat layer can be removed from the first resin coat layer with a simple configuration.

In the method for manufacturing a textile product according to one aspect of the present invention, the first resin coat layer (resin coat layer 43) is located at a position different from the first resin part along the first resin part and the core yarn part 42. and a second resin portion formed in the first and the second resin portions after the removing step and before the cooling step so as to prevent slippage between the contact object and the It is preferable to further include a melt-solidified region forming step of forming a melt-solidified region portion 60 integrally formed with the first and second resin portions from the same material as the two resin portions.

As a result, the melted and solidified region prevents slippage with the contacting object, so that it is possible to manufacture a textile product that can sufficiently maintain the anti-slip effect.

A method for manufacturing a textile product according to one aspect of the present invention includes another two-layer coated yarn 44 configured in the same manner as the two-layer coated yarn according to one aspect of the present invention, and the other second resin coat layer ( The water-soluble resin layer 45) contains a soluble resin having solubility, and the knitting and weaving process knits the two-layer coat yarn 44 as the front yarn and the other two-layer coat yarn 44 as the back yarn, and In the removing step, a fluid is applied to the two-layer coat yarn 44 and the other two-layer coat yarn 44 to remove the second resin coat layer (water-soluble resin layer 45) containing the soluble resin and the other second resin. It is preferable to remove the coat layer (water-soluble resin layer 45) from the first resin coat layer (resin coat layer 43) and the other first resin coat layer (resin coat layer 43).

As a result, it is possible to manufacture a textile product that is hard to slip and hard to come off.

In the method for manufacturing a textile product according to one aspect of the present invention, after the removing step and before the cooling step, the first resin coat is applied so as to prevent slippage with the contact object. The first resin coat layer (resin coat layer 43) and the other first resin coat layer (resin It is preferable to further include a melt-solidified region forming step of forming a melt-solidified region 60 integrally formed with the coat layer 43).

This enhances the anti-slip function.

The method for manufacturing a textile product according to one aspect of the present invention further includes a non-melting yarn 62, and the knitting and weaving step knits the two-layer coat yarn 44 as the front yarn and the non-melting yarn 62 as the back yarn. is preferred.

As a result, by using the two-layer coated yarn as the front yarn, a non-slip function is produced between the contact object and the outer surface of the textile product. In addition, since the yarn portion of the non-melting yarn is exposed on the back yarn, the feel of the yarn remains and it is possible to manufacture a textile product that is comfortable to wear.

The method for manufacturing a textile product according to one aspect of the present invention further includes a non-melting yarn 62, and the knitting and weaving step knits and weaves the non-melting yarn 62 as the front yarn and the two-layer coat yarn 44 as the back yarn. is preferred.

As a result, by using the double-layer coated yarn as the back yarn, an anti-slip function is produced between the wearer's skin and the inner surface of the textile product. In addition, since the yarn portion of the non-melting yarn used for the front yarn is exposed, it is possible to obtain a textile product with a good appearance and excellent appearance.

In the method for manufacturing a textile product according to one aspect of the present invention, the first resin coat layer (resin coat layer 43) is located at a position different from the first resin part along the first resin part and the core yarn part 42. and the first and second resin portions are made of the same material as the first and second resin portions so as to prevent slippage between the contact object and the second resin portion. It further includes a melt-solidified region forming step of forming a melt-solidified region 60 integrally formed with.

This enhances the anti-slip function.

In the method for manufacturing a textile product according to one aspect of the present invention, it is preferable that the temperature of the fluid is lower than the melting point of the first resin coat layer (resin coat layer 43).

Thereby, the soluble resin can be removed from the first resin coat layer by the fluid.

In the method for manufacturing a textile product according to one aspect of the present invention, it is preferable that the temperature of the fluid is higher than the melting point of the first resin coat layer (resin coat layer 43).

As a result, the soluble resin is removed from the first resin coat layer by the fluid, and the first resin coat layer is melted and solidified to form a melted and solidified region that prevents slippage with the contact object. can.

In the method for manufacturing a textile product according to one aspect of the present invention, the textile products are preferably socks 1 and 2.

As a result, the adhesion of the sock to the contact object is increased, so that it is possible to obtain socks that are hard to slip and hard to come off, and to provide legwear that is hard to come off and slip off.

In a method for manufacturing a textile product according to an aspect of the present invention, the textile product is socks 1 and 2, the socks 1 and 2 include a toe portion 11, a ball portion 12, and a heel portion 13, and It is preferable that a solidified region portion 60 is formed on at least one of the toe portion 11 , the ball portion 12 and the heel portion 13 .

As a result, the melted and solidified region for the leg wear that is hard to come off and slip off can be arranged in the main part of the sock.

The present invention is not limited to the above-described embodiments, but can be modified in various ways within the scope of the claims, and can be obtained by appropriately combining technical means disclosed in different embodiments. is also included in the technical scope of the present invention. Furthermore, new technical features can be formed by combining the technical means disclosed in each embodiment.

Reference Signs List 1, 2 sock 3 foot cover 10 core-sheath composite yarn 11 toe portion 12 ball portion 13 heel portion 21 opening portion 31 region 41 resin-coated yarn 42 core yarn portion 43 resin coat layer (first resin coat layer)
44 Double-layer coated thread 45 Water-soluble resin layer (second resin coat layer)
46 Gear pump 47 Nozzle 60 Melting and solidifying region 62 Non-melting thread 101 Core 102 Sheath

Claims (27)

a liquefying step of heating and liquefying a resin coating material containing a thermoplastic resin and an adhesion enhancer that enhances the adhesive strength of the thermoplastic resin;
a supply step of extruding the resin coating material liquefied in the liquefaction step with a gear pump and supplying it to a nozzle;
The resin coating material extruded by the gear pump and supplied to the nozzle is applied around a core yarn portion formed of fibers to form a resin coating layer covering the core yarn portion to obtain a resin coated yarn. and a coating step ,
The resin coating layer comprises a thermoplastic resin and an adhesion enhancer that enhances the adhesive strength of the thermoplastic resin to prevent slippage between the surface of the thermoplastic resin and a contact object,
a knitting and weaving step of knitting and weaving the resin-coated yarn;
a melting step of heating and melting the resin coat layer of the resin-coated yarn knitted and woven in the knitting and weaving step;
A method for manufacturing a textile product , further comprising a forming step of cooling the resin coating layer melted in the melting step to form a melted and solidified region portion preventing slippage between the resin coat layer and an object to be contacted . a core yarn portion formed of fibers;
A resin coat layer covering the core yarn portion,
A resin- coated yarn in which the resin -coated layer contains a thermoplastic resin and an adhesion enhancer that enhances the adhesive force of the thermoplastic resin to prevent slippage between the surface of the thermoplastic resin and a contact object. A textile product woven by
The resin coat layer has a first resin portion and a second resin portion formed at a position different from the first resin portion along the core yarn portion,
A melted and solidified region is formed integrally with the first and second resin portions and is made of the same material as the first and second resin portions so as to prevent slippage between the first and second resin portions. A textile product characterized by 3. The textile product according to claim 2, wherein said thermoplastic resin comprises an olefinic resin. Further comprising another resin-coated yarn configured in the same manner as the resin-coated yarn,
3. The textile product according to claim 2, wherein the textile product is knitted and woven with the resin-coated yarn serving as the front yarn and the other resin-coated yarn serving as the back yarn. A melt-solidified region integrally formed with the resin coat layer and the other resin coat layer from the same material as the resin coat layer and the other resin coat layer so as to prevent slippage between the contact object and the other resin coat layer. 5. The textile product according to claim 4, wherein the portion is formed. Further equipped with a non-melting thread,
3. The textile product according to claim 2, wherein the textile product is woven from the resin-coated yarn serving as the front yarn and the non-melting yarn serving as the back yarn. Further equipped with a non-melting thread,
3. The textile product according to claim 2, wherein the textile product is knitted from the non-melting yarn serving as the front yarn and the resin-coated yarn serving as the back yarn. The resin coat layer has a first resin portion and a second resin portion formed at a position different from the first resin portion along the core yarn portion,
A melted and solidified region is formed integrally with the first and second resin portions and is made of the same material as the first and second resin portions so as to prevent slippage between the first and second resin portions. The textile product according to claim 6 or 7. 3. The textile product according to claim 2, wherein said textile product is socks. The textile product is socks,
the sock includes a toe portion, a ball portion and a heel portion;
3. The textile product according to claim 2, wherein said melt-solidified region is formed in at least one of said toe portion, said ball portion and said heel portion. A core yarn portion formed of fibers and a resin coat layer covering the core yarn portion, wherein the resin coat layer is a thermoplastic resin, and a slip between the surface of the thermoplastic resin and the contact object. a knitting and weaving step of knitting and weaving a resin-coated yarn containing an adhesion enhancer that enhances the adhesive strength of the thermoplastic resin to prevent
a melting step of heating and melting the resin coat layer of the resin-coated yarn knitted and woven in the knitting and weaving step;
and a forming step of cooling the resin coat layer melted in the melting step to form a melted and solidified region that prevents slippage between the layer and an object to be contacted. a core yarn portion formed of fibers;
a first resin coat layer covering the core yarn portion;
and a second resin coat layer covering the first resin coat layer,
The first resin coat layer contains a thermoplastic resin and an adhesion enhancer that enhances the adhesive strength of the thermoplastic resin to prevent slippage between the thermoplastic resin and a contact object. and double-layer coated yarn. 13. The double-layer coated yarn according to claim 12, wherein the first resin coat layer has a peel adhesive strength of 3.7 N/cm or more and 12.8 N/cm or less. 13. The double-coated yarn according to claim 12, wherein said thermoplastic resin comprises an olefinic resin. a liquefying step of heating and liquefying a first resin coating material containing a thermoplastic resin and an adhesion enhancer for enhancing adhesive strength of the thermoplastic resin;
a first supply step of extruding the first resin coating material liquefied in the liquefaction step with a gear pump and supplying the material to the first nozzle;
The first resin coat material extruded by the gear pump and supplied to the first nozzle is applied around the core yarn portion formed of fibers to form a first resin coat layer covering the core yarn portion. a first coating step;
a second supply step of supplying the liquefied second resin to the second nozzle;
The second resin supplied to the second nozzle is applied around the first resin coat layer applied to the core yarn portion in the first application step to coat the first resin coat layer. and a second coating step of forming a coat layer. The second resin coat layer according to claim 12 contains a soluble resin having solubility,
A knitting and weaving step of knitting and weaving the two-layer coated yarn according to claim 12;
A removal step of applying a fluid to the two-layer coat yarn knitted and woven in the knitting and weaving step to remove the soluble resin from the first resin coat layer;
and a cooling step of cooling the knitted and woven first resin coat layer and the core yarn portion. the soluble resin comprises a water-soluble resin,
17. The method for manufacturing a textile product according to claim 16, wherein the removing step removes the water-soluble resin from the first resin coat layer by applying steam or water to the two-layer coated yarn to dissolve the water-soluble resin. . The first resin coat layer has a first resin portion and a second resin portion formed at a position different from the first resin portion along the core yarn portion,
After the removal step and before the cooling step, the first and the second resin portions are made of the same material as the first and second resin portions so as to prevent slippage between contact objects. 17. The method of manufacturing a textile product according to claim 16, further comprising a melt-solidified region forming step of forming a melt-solidified region integrally formed with the second resin portion. Equipped with another double-layer coated yarn configured in the same manner as the double-layer coated yarn,
The other second resin coat layer contains a soluble resin having solubility,
The knitting and weaving step knits the two-layer coat yarn serving as the front yarn and the other two-layer coat yarn serving as the back yarn,
In the removing step, a fluid is applied to the two-layer-coated yarn and the other two-layer-coated yarn to remove the second resin coat layer containing the soluble resin and the other second resin coat layer from the first resin coat. 17. The method of manufacturing a textile product according to claim 16, wherein the layer and the other first resin coat layer are removed respectively. After the removal step and before the cooling step, the same material as the first resin coat layer and the other first resin coat layer so as to prevent slippage between contact objects. 20. The method of manufacturing a textile product according to claim 19, further comprising a melt-solidified region forming step of forming a melt-solidified region formed integrally with the first resin coat layer and the other first resin coat layer by . Further equipped with a non-melting thread,
17. The method for producing a textile product according to claim 16, wherein the knitting and weaving step knits the two-layer coat yarn that serves as the front yarn and the non-melting yarn that serves as the back yarn. Further equipped with a non-melting thread,
17. The method for producing a textile product according to claim 16, wherein the knitting and weaving step knits and weaves the non-melting yarn serving as the front yarn and the two-layer coat yarn serving as the back yarn. The first resin coat layer has a first resin portion and a second resin portion formed at a position different from the first resin portion along the core yarn portion,
A melted and solidified region is formed integrally with the first and second resin portions from the same material as the first and second resin portions so as to prevent slippage between the contact object and the contact object. 23. The method for producing a textile product according to claim 21 or 22, further comprising a step of forming a melt-solidified region. 17. The method of manufacturing a textile product according to claim 16, wherein the temperature of said fluid is lower than the melting point of said first resin coat layer. 17. The method of manufacturing a textile product according to claim 16, wherein the temperature of said fluid is higher than the melting point of said first resin coat layer. 17. The method for manufacturing a textile product according to claim 16, wherein the textile product is socks. The textile product is socks,
the sock includes a toe portion, a ball portion and a heel portion;
19. The method of manufacturing a textile product according to claim 18, wherein the melt-solidified region is formed in at least one of the toe portion, the ball portion, and the heel portion.

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