WO2021044574A1

WO2021044574A1 - Yarn material, yarn, fabric and yarn material production method

Info

Publication number: WO2021044574A1
Application number: PCT/JP2019/034953
Authority: WO
Inventors: 大木　武彦; 大木　達彦; 清太郎中瀬; 定夫田邊
Original assignee: 株式会社大木工藝
Priority date: 2019-09-05
Filing date: 2019-09-05
Publication date: 2021-03-11
Also published as: JPWO2021044574A1; CN112996957A; JP6656650B1

Abstract

The objective of the invention is to yield a yarn material 10 having excellent electrical conductivity and thermal conductivity and to allow the yarn material 10 to have a simpler structure and be produced at lower costs. To this end, the yarn material 10 is constituted by comprising a superficial synthetic resin film layer 11, a carbon-containing resin adhesion layer 12 including a carbon material 12a, and a base material layer 13.

Description

Manufacturing method of yarn material, yarn, woven fabric and yarn material

The present invention relates to a yarn material, a yarn, a woven fabric, and a method for manufacturing a yarn material.

Recently, various carbon fibers have been proposed and implemented as yarn materials including carbon materials. Carbon fiber has the characteristics of being light and strong, and many industrial products that take advantage of these characteristics have been developed. Further, a technique for forming twisted yarn using carbon nanotubes has also been proposed (see, for example, Patent Document 1).

Japanese Patent No. 5699387

However, when focusing on using it as a conductive yarn, it cannot be said that carbon fiber is excellent. Further, a conductive paint impregnated yarn containing a carbon material has also been implemented, but there is a drawback that the yarn becomes hard and the weight increases. There is also a method of producing a conductive yarn by mixing carbon materials at the time of spinning, but the characteristics of the yarn may be impaired depending on the mixing ratio of the carbon materials.

The present invention has been proposed in consideration of the above circumstances, and an object of the present invention is to provide a yarn material which is excellent in conductivity and thermal conductivity, has a simpler structure, and can be manufactured at a lower cost. It is an object of the present invention to provide a yarn produced in the above, a woven fabric produced based on the yarn material, and a method for producing the yarn material.

In order to achieve the above object, the yarn material of the present invention is characterized by having a synthetic resin film layer for a surface, a carbon-containing resin adhesive layer containing a carbon material, and a base material layer.

Since the yarn material of the present invention has the above-mentioned structure, the yarn material can be made excellent in conductivity and thermal conductivity, can have a simpler structure, and can be manufactured at a lower cost. ..

It is explanatory drawing of the thread material which concerns on one Embodiment of this invention. (A) is a schematic partial cross-sectional view showing a sheet forming process in a method for manufacturing a thread material, and (b) is a schematic partial sectional view of a sheet material formed in the sheet forming step and a thread material obtained by a subsequent cutting step. c) is a schematic perspective view of a cutting process in a method for manufacturing a thread material. It is explanatory drawing of the yarn material which concerns on other embodiment of this invention. (A) is a schematic partial cross-sectional view showing a sheet forming process in a method for manufacturing a thread material, and (b) is a schematic partial sectional view of a sheet material formed in the sheet forming process and a thread material obtained by a subsequent cutting process. .. It is a schematic explanatory drawing of the yarn formed by using the yarn material. It is a graph of the electric resistance value with respect to the mixing ratio of a plurality of carbon materials. It is a schematic explanatory drawing of the woven fabric formed by using a yarn material.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the present specification and claims, the yarn material 10 is in the form of a band, a yarn, or a fiber, and based on this, a yarn 16 which is a product such as a twisted yarn is processed and manufactured. Of course, the thread material 10 itself may be the thread 16 as a product.

The thread material 10 according to the following embodiment includes at least a synthetic resin film layer 11 for a surface, a carbon-containing resin adhesive layer 12 containing a carbon material 12a, and a base material layer 13.

That is, the main yarn material 10 has a layer structure including at least the above three layers, but even if the yarn material 10 has an additional layer and has four or more layers like the yarn material 10 according to the following various embodiments. Good.

As shown below, the thread material 10 having such a layer structure is manufactured by forming a sheet material 1 having the same layer structure as the target thread material 10 and cutting the sheet material 1. Is desirable.

The method for producing a thread material of the present embodiment is a sheet molding step of molding a surface synthetic resin film 11 and a base sheet 13 with a carbon-containing resin agent 12 containing a carbon material (FIG. 1 (FIG. 1). a) (see (b)) and a cutting step (see FIG. 1 (c)) of cutting the sheet material 1 into the strip-shaped thread material 10 are executed.

The surface synthetic resin film 11 used in this method is used as a material for forming the surface synthetic resin film layer 11 in the yarn material 10, and the carbon-containing resin agent 12 forms the carbon-containing resin adhesive layer 12 in the yarn material 10. The base material sheet 13 is used as a material for forming the base material layer 13 of the yarn material 10.

The sheet material 1 shown in FIG. 1 has a four-layer structure, and the base sheet 13 has a two-layer structure including a synthetic resin film layer 13a for a base material and a Japanese paper layer 13b.

In the sheet molding step, a carbon-containing resin agent 12 containing a carbon material is applied to the surface of the synthetic resin film layer 13a for a base material out of the two layers of the base material sheet 13 with a roller or the like, and the surface is synthesized on the surface. The procedure is such that the resin films 11 are bonded together to form the above four layers.

The cutting step is a procedure of cutting the sheet material 1 thus formed to form a strip-shaped thread material 10. It is desirable, but not limited to, to cut the sheet material 1 into strips with a cutting width dimension of about 0.1 mm to 5 mm. The thread material 10 may be a thread-like or fibrous material having a small width dimension, or may be a wider material.

Examples of the synthetic resin film 11 for the surface and the synthetic resin film 13a for the base material, which are the constituent materials of the sheet material 10, include a polyester film and a nylon film. Further, the surface synthetic resin film 11 and the base material synthetic resin film 13a may be made of the same material or different materials. The thickness of each is preferably 6 to 9 μm, but is not limited to this.

The surface synthetic resin film 11 may be transparent or translucent, and in the yarn 16 or the woven fabric 20 manufactured based on the yarn material 10, the surface of the surface synthetic resin film 11 is exposed. It may be dyed in a color that matches the purpose.

Further, since the synthetic resin film 13a for a base material is arranged between the Japanese paper sheet 13b and the carbon-containing resin adhesive layer 12, its color is not directly exposed on the surface, but the color is transferred through the light-colored Japanese paper sheet 13b. Transparent, translucent or light-colored ones are preferably used so as not to show through.

Examples of the resin agent used as the main agent 12b of the carbon-containing resin agent 12 include, but are not limited to, carboxyl methyl cellulose (CMC), styrene-butadiene rubber (SBR), enamel oil-based paint, and lacquer paint. The lacquer paint is desirable as the main agent 12b because it easily disperses the carbon material 12a to be mixed.

As the carbon material 12a contained in the main agent 12b, it is desirable to use 3 to 10 μm graphite particles (graphite powder), for example, it is desirable to use 5 to 10 μm scaly graphite having high crystallinity. Instead of this, earth-like graphite or artificial graphite can also be used. In addition, carbon black such as acetylene black (particle size of 1 micron or less), Ketjen black, furnace black, etc., which has a small particle size and high conductivity, is further added as another carbon material 12a, and it is added to the gaps between graphite particles. It may be arranged to increase the conductivity. Although the crystallinity is inferior to that of scaly graphite, scaly graphite may be used.

Further, it has been found by experiments and the like that the electric resistance value becomes smaller (the conductivity becomes higher) when both graphite (graphite) and carbon black are used in combination rather than being used alone. FIG. 4 is a schematic graph showing the electric resistance values corresponding to the mixing ratio of the mixture of scaly graphite (graphite) and acetylene black (carbon black). As can be seen from this graph, graphite is about 70% and carbon is used. The electric resistance value becomes the minimum value when black is mixed at a mixing ratio of about 30%.

Therefore, in order to form the highly conductive yarn material 10, it is desirable that the mixing ratio of graphite and carbon black is in the range of 9: 1 to 1: 9, and more preferably 5: 5 to 8: 2. It is desirable to set it in the range of. Of course, the carbon material 12a may be composed of only one of them.

The carbon material 12a is not limited to the above, and carbon nanotubes (single layer, multilayer), graphene, and carbon nanofibers can also be used.

Further, the content (% by weight) of the carbon material 12a is preferably 5 to 50% in the state of the carbon-containing resin agent 12 when the lacquer paint is used as the main agent 12b, and among the carbon-containing resin agents 12, It is desirable that the content of the solvent is 50 to 90% when the solvent is volatilized and cured to form the carbon-containing resin adhesive layer 12. Further, the thickness of the formed carbon-containing resin adhesive layer 12 is 3 to 15 μm in consideration of the balance between the flexibility of the manufactured yarn material 10 as a yarn and the conductivity when used as a conductive yarn. It is preferably 10 μm or less.

Since such a carbon-containing resin agent 12 is sandwiched between the surface synthetic resin film 11 and the base material synthetic resin film 13a as in the present embodiment, the carbon-containing resin agent 12 is sandwiched between the surface synthetic resin film 11 and the base material synthetic resin film 13a. In particular, there is no risk that the carbon material 12a having a small particle size will come out to the front and back sides. Of course, after the carbon-containing resin agent 12 becomes the carbon-containing resin adhesive layer 12, there is almost no possibility that the carbon material 12a will move because the whole is solidified.

Further, the carbon-containing resin agent 12 may contain an antibacterial agent. As the antibacterial agent, an inorganic antibacterial agent can be used, and a metal or a metal ion having an antibacterial action may be supported on an inorganic carrier. As such an inorganic antibacterial agent, for example, a powdery silver-based inorganic antibacterial agent (for example, Novalon (registered trademark)) may be used. As a result, the sheet material 1 (thread material 10) can be made to have an antibacterial effect such that germs are difficult to propagate, and deterioration of the sheet material 1 (thread material 10) can be prevented.

The synthetic resin film 13a for the base material and the Japanese paper sheet 13b may be attached to each other in advance with an adhesive or an adhesive, but the synthetic resin film 11 for the surface and the synthetic resin film 13a for the base material are made of a carbon-containing resin. After sticking with the agent 12, the Japanese paper sheet 13b may be stuck on the back surface of the synthetic resin film 13a for the base material. The adhesive layer obtained by adhering the synthetic resin film 13a for a base material and the Japanese paper sheet 13b is not shown.

Although various Japanese paper sheets 13b can be used, it is desirable to use one that is resistant to water. The Japanese paper sheet 13b may be pre-dyed in various colors. The thickness of the Japanese paper sheet 13b is preferably 5 to 30 μm.

By using the Japanese paper sheet 13b in this way, even when the transparent synthetic resin film 13a for a base material is used, the color of the carbon-containing resin adhesive layer 12 can be concealed without being exposed on the back surface side. In addition, Japanese paper has lower elasticity than synthetic resin films such as polyester, and the elasticity of synthetic resin films can be suppressed.

Further, as shown in FIGS. 2A and 2B, the sheet material 1 (thread material 10) may have a five-layer structure. In FIG. 2, a metal thin film 14 formed on the back surface of the front surface synthetic resin film 11 is attached to a base sheet 13 via a carbon-containing resin agent 12.

The metal thin film 14 may be formed by, for example, thin film deposition. Since the thin-film deposition film can be formed to a thickness of about 20 to 50 nm, it contributes to forming the sheet material thin. A metal foil may be attached instead of the vapor-deposited film.

Examples of the material of the metal thin film 14 include gold, silver, aluminum, and copper. In order to expose the colors of these metals to the surface, the surface synthetic resin film 11 may be made transparent.

By providing the metal thin film layer 14 in this way, even when the transparent surface synthetic resin film 11 is used, the color of the carbon-containing resin adhesive layer 12 can be concealed without being exposed to the surface side. Of course, the color of the metal thin film layer 14 can be expressed through the transparent surface synthetic resin film layer 11.

Further, the metal thin film layer 14 may be formed on the surface of the surface synthetic resin film layer 11. In that case, after the surface synthetic resin film 11 and the base material synthetic resin film 13a are attached with the carbon-containing resin agent 12, the metal thin film layer 14 is provided on the surface of the surface synthetic resin film layer 11. May be good.

Instead of forming such a metal thin film layer 14, the surface of the transparent surface synthetic resin film 11 is colored with a dye or pigment such as titanium oxide to conceal the color of the carbon-containing resin adhesive layer 12. You may.

The strip-shaped thread material 10 formed as described above may be used as a thread product as it is, or may be processed into another product. The yarn 16 (twisted yarn) may be formed by using the yarn material 10, and for example, as shown in FIG. 3, the yarn material 10 may be wound around the core yarn 17 to form the twisted yarn 16.

Examples of the material of the core thread 17 in this figure include cupra, rayon, and woolly nylon. In this case, the synthetic resin film layer 11 for the surface is exposed to the surface, and the Japanese paper layer 13b, which is sensitive to moisture (easily torn by moisture), is wound on the winding surface, that is, inside, and the yarn material 10 is wound around the core yarn 17. Just do it. After winding the thread material 10, the whole may be steamed with steam, so that the thread material 10 is less likely to fray or peel off.

A Japanese paper sheet 13b that is not easily torn by water may be used and wound around a core yarn 17 so that the Japanese paper layer 13b is exposed to form a twisted yarn 16. When the surface of the Japanese paper layer 13b is exposed in this way, a decorative layer such as a metal vapor deposition film or a metal leaf may be provided on the exposed surface of the Japanese paper layer 13b.

Further, as described above, Japanese paper is vulnerable to water, so instead of the Japanese paper sheet 13b, a natural fiber material such as silk, cotton, or linen, or a chemical fiber material different from that used for the synthetic resin film 13a for a base material is used. You may. When a water-resistant natural fiber material sheet is used instead of the Japanese paper sheet 13b, the thread material 10 is wound around the core thread 16 so that the back surface of the natural fiber material sheet (the back surface of the base sheet 13) is exposed. Just do it.

Further, in the case of producing the stretchable thread 16, the stretchable nylon or the like is used as the core thread 17, and the base material layer 13 is a natural fiber which is more stretchable than Japanese paper instead of Japanese paper. A material or a chemical fiber material may be used.

Further, using this yarn material 10, various twisted yarns 16 can be formed by various other twisting methods such as round twisting, hagoromo twisting, tasuki twisting, entanglement twisting, bellows twisting, heart twisting, and threat twisting. ..

According to the yarn material 10 and the yarn 16 formed as described above, the woven fabric 20 as shown in FIG. 5 can be formed by using the yarn material 10 and the yarn 16 for at least one of the warp yarn 21 and the weft yarn 22.

For example, the plying material 10 in which the gold or silver color of the metal thin film layer 14 is exposed on the surface of the surface synthetic resin film layer 11 is exposed to the surface of the surface synthetic resin film layer 11. When the twisted yarn 16 is formed by winding the twisted yarn 16 on the warp yarn 21 or the weft yarn 22 of the woven fabric 20, the woven fabric 20 having a richly decorative color on both sides can be manufactured. Of course, the twisted yarn 16 formed by dyeing the back surface of the base material layer 13 (Japanese paper layer 13b) and exposing the back surface to the front surface may be used.

As described above, since the yarn material 10 manufactured as described above contains the carbon material 12a, the yarn material 20 and the yarn 16 formed based on the carbon material 20 can be used as the conductive material, and can be used in industrial fields and the like. It can be used in various fields. The yarn material 10 has a carbon-containing resin adhesive layer 12 containing a carbon material 12a sandwiched between the other two layers, but the conductivity is ensured as a whole.

Further, since the thread material 10 has excellent conductivity, it is possible to manufacture clothing that requires conductivity, such as conductive work clothes, based on the thread material 10. Further, a shirt or the like may be manufactured based on the thread material 10, and the electrocardiogram can be easily measured by wearing the shirt.

Further, since the thread material 10 contains Japanese paper, the thread material 10 and the thread 16 manufactured based on the thread material 10 can be made tough. In particular, since Japanese paper is less likely to expand and contract than a synthetic resin film, it also acts as a stretch stopper for the manufactured thread material 10 and thread 16.

It is also known that the carbon material 12a has high thermal conductivity and good heat absorption, and further has high far-infrared radiation. Therefore, such high thermal conductivity and high radioactivity of far infrared rays can be utilized.
Next, the mechanism of the far-infrared effect brought about by the carbon material 12a will be described.

When the carbon material touches or approaches the skin of the human body, the human body absorbs far infrared rays and is heated. That is, far infrared rays of the same wavelength are radiated between these carbon materials and the human body, and while the carbon material maintains about 36.5 ° C., water molecules collide violently in the body, and this vibration moves. It becomes energy and is converted into heat to heat the body.

As a result, far infrared rays act on subcutaneous tissues and blood vessels to improve blood flow. According to the present inventors, it has been confirmed that there is a 15% increase effect on peripheral and central blood flow. In addition, these carbon materials are thought to generate alpha waves to heal the body, reduce fatigue, and contribute to health promotion.

Therefore, it is possible to improve the health-promoting effect by manufacturing clothing such as woven fabric 20 (see FIG. 5), sheets, and underwear using the thread material 10 and using them by a person. Further, in clothing such as sheets and underwear, if an antibacterial agent is blended in the carbon-containing resin adhesive layer 12 of the thread material 10, the antibacterial action can prevent the generation of an oxidative odor such as sweat.

As described above, the main yarn material 10 has a simple layer structure, can be formed by a simple procedure as described above, and can be manufactured at low cost. Further, since the carbon material 12a is arranged in the adhesive layer over the entire surface of the sheet material 1, that is, is evenly arranged over the entire length of the yarn material 10, the yarn 16 using the yarn material 10 and the woven fabric using the yarn material 10 are used. 20. When an industrial product using the yarn material 10 is used, various characteristics (conductivity, thermal conductivity, far-infrared radiation, etc.) of the carbon material 12a contained in the yarn material 10 can be utilized. ..

Further, since the carbon-containing resin adhesive layer 12 is a layer formed by curing the carbon-containing resin agent 12, the carbon material 12a in the layer escapes to the surface synthetic resin film layer 11 side or the base material layer 13 side. There is almost no risk of going on. Therefore, there is no possibility that the black color of the carbon material 12a will be exposed on the surface side of the yarn material 10 and that the surroundings will be soiled.

Further, in the main yarn material 10, the carbon-containing resin adhesive layer 12 can be formed sufficiently thin to 10 μm or less, so that the yarn 16 formed based on the carbon-containing resin adhesive layer 12 does not become hard, and the characteristics as a yarn may be impaired. Absent.

In the various embodiments shown above, activated carbon may be used as the carbon material 12a contained in the carbon-containing resin adhesive layer 12. Activated carbon may be used in place of the above graphite particles, or may be used in addition. Further, the activated carbon may be arranged so as to be mixed in the base sheet 13 instead of as the carbon material 12a of the carbon-containing resin adhesive layer 12. In order to make the layer structure of the yarn material 10 thinner, for example, finer spherical fine particle activated carbon or activated carbon powder of about 7 μm produced from a PET bottle as a raw material may be used as the activated carbon.

In the above, as the thread material 10, four layers (see FIG. 1) and five layers (see FIG. 2) have been illustrated, but as described above, the carbon-containing resin adhesive layer 12 is arranged at least inside. It may have a layered structure of three or more layers. For example, the base material layer 13 may be composed of only the synthetic resin film layer 13a for the base material or one layer composed of only the Japanese paper layer 13b.

1 Sheet material 10 Thread material 11 Surface synthetic resin film, Surface synthetic resin film layer 12 Carbon-containing resin agent, Carbon-containing resin adhesive layer

12a Carbon material

12b Main agent 13 Base sheet, base material layer 13a Synthetic resin film for base material , Synthetic resin film layer for base material 13b Japanese paper sheet, Japanese paper layer 14 Metal thin film, Metal thin film layer 16 Yarn, Twisted yarn 17 Core yarn 20 Textile

Claims

A thread material characterized by having a synthetic resin film layer for the surface, a carbon-containing resin adhesive layer containing a carbon material, and a base material layer.
In claim 1,
The thread material is characterized in that the base material layer has a synthetic resin film layer for a base material as a layer in contact with the carbon-containing resin adhesive layer.
In claim 2,
The base material layer is a thread material having a Japanese paper layer on the back surface side of the synthetic resin film layer for the base material.
In any one of claims 1 to 3,
The yarn material is characterized in that the carbon material is composed of a mixture of graphite particles and carbon black.
In any one of claims 1 to 4,
The surface synthetic resin film layer is a transparent or translucent layer.
A thread material characterized in that a metal thin film layer is arranged between the surface synthetic resin film layer and the carbon-containing resin adhesive layer.
In any one of claims 1 to 5,
The carbon-containing resin adhesive layer is a thread material formed by curing a resin adhesive containing the carbon material.
A yarn characterized in that the yarn material according to any one of claims 1 to 6 is wound around a core yarn.
A woven fabric using the yarn material according to any one of claims 1 to 6.
A method for producing a yarn material, which comprises producing the yarn material according to any one of claims 1 to 6.
A sheet molding process in which a synthetic resin film for a surface and a base sheet are bonded with a carbon-containing resin agent containing a carbon material to form a sheet material.
A method for producing a yarn material, which comprises a cutting step of cutting the sheet material into a strip shape to form the yarn material.
In claim 9.
A method for producing a yarn material, wherein the base material sheet includes a synthetic resin film for a base material to which the carbon-containing resin agent is applied.