KR20070035136A - Carbon coating solution, manufacturing apparatus for carbon thread using the solution, and manufacturing method for carbon thread using the apparatus - Google Patents

Abstract

The present invention relates to a carbon coating solution for a heating fabric that can be used in various heating garments, heat transfer mats, building interior materials, agricultural heat transfer sheets, an exothermic carbon yarn manufacturing apparatus using the solution, and a carbon yarn manufacturing method using the apparatus. In particular, the heating carbon yarn manufacturing apparatus according to the present invention is rotated so as to pass while turning left or right yarns made of left yarn or right yarn when passing through the impregnation tank containing the carbon coating solution. By providing a means, and the yarn discharged from the impregnating tank to have a suitable coating layer thickness and uniformity in the process of passing through the hollow of the trimming member to improve the quality of the carbon yarn, and eventually heat generation using the carbon yarn according to the present invention In the case of woven fabric, shorter time to reach the set temperature value, less power consumption and less risk of breakage of carbon yarns can shorten product life. To be stretched.

Exothermic carbon yarn manufacturing apparatus according to the present invention contains a carbon coating solution, the impregnation tank is provided with a guide member immersed in the solution; A feed reel wound in a yarn made of left yarn or right yarn; Rotating means for rotating left when the yarn discharged from the supply reel is left yarn and right when the yarn is right yarn; An exit guide roller provided in a vertical upper portion of the yarn which passes through the guide member of the impregnation tank; The thickness of the carbon layer which is provided between the outlet guide roller and the guide member of the impregnation tank, the hollow is passed through the yarn is formed, the outlet having an inner diameter larger than the diameter of the yarn is formed is coated on the yarn A trimming member for determining uniformity; And drying means for drying the yarn passing through the delivery guide roller.

Carbon, coating, heating, supply reel, impregnation tank, finishing member, rotation, heating fabric

Description

CARBON COATING SOLUTION, MANUFACTURING APPARATUS FOR CARBON THREAD USING THE SOLUTION, AND MANUFACTURING METHOD FOR CARBON THREAD USING THE APPARATUS}

1 is a schematic block diagram of a carbon yarn manufacturing apparatus according to the present invention,

2 is a process chart of the carbon yarn manufacturing method according to the present invention;

3 is a schematic diagram of a heating fabric using a carbon yarn according to the present invention.

<Description of the symbols for the main parts of the drawings>

A: carbon yarn manufacturing apparatus T1: yarn

T2: carbon company 10: supply reel

20: rotation means 21: motor

30: impregnation tank 31: guide member

40A: Entrance guide roller 40B: Exit guide roller

50: trimming member 51: hollow

60: drying means H: heating fabric

The present invention is a carbon coating solution for radiant heating fabrics that can be used in various heating garments, heat transfer mats, building materials, agricultural heat transfer sheets, etc. About

In particular, the exothermic carbon yarn manufacturing apparatus according to the present invention has a rotation means for passing through the left or right yarn (rot) yarn left or right when passing through the impregnation tank containing the carbon coating solution to pass through Offering,

The yarn discharged from the impregnation tank has an appropriate coating layer thickness and uniformity in the process of passing through the hollow of the trimming member.

It is possible to increase the quality of the carbon yarn, and in the case of the heating fabric using the carbon yarn according to the present invention can shorten the time to reach the set temperature value, less power consumption and less risk of breakage of the carbon yarn can significantly increase the product life. .

Heating fabrics are widely used in agricultural or industrial radiant mats, such as climbing vests, radiant heat heating in buildings, leisure or medical clothing, and radiant mats for bedding.

Since heat is used as a radiant heat method, there is no risk of burns and electricity consumption is low even when used as clothing.

Conventional heating fabric or a technology related to the carbon yarn for its manufacture

Utility Model Registration No. 0350509 (2004.05.04), `` Low Density Planar Heating Element Using Carbon Fiber Yarn, '' which relates to a low density planar heating element woven to have a very low warp yarn density and provided with a conductive section woven by a conductive yarn.

Patent Publication No. 2005-0081314 (2005.08.19) 『Method of manufacturing a heating element fabric using conductive carbon coated fiber』, and

Utility model registration No. 0389288 (Jun. 30, 2005) 『Cotton weaving heating element』, which is related to a heating fabric woven with carbon yarn, is used to improve the heating function and minimize cutting or short circuit due to wrinkles.

The present invention has been proposed to provide a carbon coating solution, a carbon yarn manufacturing apparatus, and a manufacturing method to reduce the time to reach the target temperature of the finally produced heating fabric, reduce power consumption, and improve durability.

Accordingly, the present invention provides a carbon yarn manufacturing apparatus provided with a rotation means capable of turning left or right of yarns made of left yarn or right yarn when passing through an impregnation tank containing a carbon coating solution. For the purpose of

In another aspect, the present invention provides a trimming member having a hollow for the yarn discharged from the impregnation tank to have a suitable coating layer thickness and uniformity, and repeatedly coating the carbon fiber yarn by increasing the outlet inner diameter of the finishing member. It aims to improve quality.

Carbon coating solution according to the present invention to achieve the above object is

10 to 60% by weight of carbon powder having a particle size of 0.1 to 0.01 μm, 2 to 60% by weight of graphite powder having a particle size of 15 to 1 μm, magnesium oxide, zirconium carbide, silicon carbide, or a combination thereof 40 to 60% by weight of a solid content comprising 0.1 to 20% of a conductive filler selected from, and 1 to 5% by weight of a coupling agent; And

Solvent 40 to 60 containing 15 to 25 wt% solvent, 7 to 13 wt% synthetic resin, 0.1 to 0.6 wt% dispersant, 0.1 to 0.6 wt% antifoaming agent, 0.1 to 0.6 wt% antioxidant, and remaining solvent By weight; obtained by mixing.

In addition, the heating carbon yarn manufacturing apparatus according to the present invention contains a carbon coating solution, the impregnation tank is provided with a guide member immersed in the solution; A feed reel wound in a yarn made of left yarn or right yarn; Rotating means for rotating left when the yarn discharged from the supply reel is left yarn and right when the yarn is right yarn; An exit guide roller provided in a vertical upper portion of the yarn which passes through the guide member of the impregnation tank; It is provided between the outlet guide roller and the guide member of the impregnation tank, the hollow is passed through the yarn is formed, the outlet having an inner diameter larger than the diameter of the yarn is formed is formed of a carbon layer coated on the yarn Trimming member for determining the thickness and uniformity; And drying means for drying the yarn passing through the delivery guide roller.

Furthermore, the method for producing exothermic carbon yarn according to the present invention is a method for producing exothermic carbon yarn using the carbon yarn manufacturing method, and undergoes a coating process of passing the impregnating tank, passing the finishing member, and passing the drying means a total of three times. According to the coating process, the outlet inner diameter of the finishing member is characterized in that larger by 0.05 ~ 0.15mm.

The carbon coating solution according to the present invention is obtained by mixing 40 to 60% by weight of solids and 40 to 60% by weight of a solvent, and pulverizing. It has a particle size of less than or equal to a colloidal state.

The main component of the solid content may be 10 to 60% by weight of the carbon powder having a particle size of 0.1 ~ 0.01㎛ and 2 to 60% by weight of the graphite powder having a particle size of 15 ~ 1㎛, the mixing of carbon and graphite It is to ensure the uniformity of the resistance in the carbon yarn manufactured using the solution.

The remaining components of the solid content is 40 to 60% by weight solids comprising 0.1 to 20% conductive fillers selected from the group consisting of magnesium oxide, zirconium carbide, silicon carbide, or a combination thereof, 1 to 5% by weight coupling agent; And far infrared ray emitting material is 0.1-15% by weight.

The conductive filler is to improve conductivity by supplementing the carbon and graphite, which are the main conductive materials, and when used excessively, the adhesion of the coating solution is poor, and the stable resistance value cannot be maintained. .

The coupling agent may be gamma glycidoxypropyl trimethoxysilane obtained by hydrolyzing a silicon compound with a titanate compound,

The far infrared emitting material may be alumina, silica, zirconia, or the like.

The solvent is 15 to 25% by weight of a solvent such as xylene, 7 to 13% by weight of a synthetic resin (polyester or alkyd resin) as a fixing agent, 0.1 to 0.6% by weight of a dispersant, 0.1 to 0.6% by weight of an antifoaming agent, and 0.1 to 0.6% by weight of an antioxidant %, And the remaining amount of the solvent.

The dispersing agent is used to make a state in which other substances are dispersed in a particulate state in one phase, and polyphosphate, polyacrylate, alkali silicate, anionic polymer dispersant, and the like may be used.

The antifoaming agent may be a silicone-based antifoaming agent or organophosphate,

The antioxidant may be used phenolic.

Hereinafter, a carbon yarn manufacturing apparatus and a manufacturing method according to the present invention will be described in detail with reference to the accompanying drawings.

In Figure 1, the carbon coating solution (C) contained in the impregnation tank 30 in the carbon yarn manufacturing apparatus (A) according to the present invention may be a carbon coating solution or other known carbon coating solution according to the present invention described above.

The impregnation tank 30 is provided with a guide member, in particular a guide member 31 in the form of a roller so that the yarn coming out of the supply reel 10 is sufficiently locked so that the coating solution C is buried. do.

Yarn (T1) wound on the supply reel 10 may be left yarn (사) or right yarn (右 絲), natural fibers such as cotton or hemp, or synthetic fibers such as nylon, polyester, polypropylene, rayon Regenerated fibers or semisynthetic fibers such as acetate and the like can all be used.

Immediately before the impregnation tank 30, an entry guide roller 40A is provided, and an exit portion provided on the vertical upper portion of the yarn T1 exiting through the guide member 31 of the impregnation tank 30 ( The guide roller 40B is provided.

The entrance guide roller (40A) may be omitted or provided with two or more,

According to the experience of the present inventors, the incident angle of the yarn T1 introduced into the impregnation tank 30 is 50 to 70 degrees, more preferably 55 to 65 degrees with respect to the horizontal direction of the gravity direction, and the coating solution is applied to all the yarns. (C) was found to be better asked,

The angle of the yarn T1 discharged to the delivery guide roller 40B is horizontal to the direction of gravity, in particular through the hollow 51 of the finishing member 50, and the unnecessary coating solution is returned to the impregnation tank 30 again. It was found to be suitable for falling off and to be suitable for the coating solution not to be biased to either side from the center of the yarn.

In the carbon manufacturing apparatus (A) according to the present invention, the core is a rotating means for rotating left when the yarn T1 discharged from the supply reel 10 is left and right when it is right.

If the carbon coating proceeds without rotating the yarn in the twisting direction, the coating solution is inhomogeneously infiltrated between the fiber yarn and the fiber yarn in the yarn in which a plurality of twisted yarns are twisted, resulting in non-uniform thickness of the produced carbon yarn (T2). It is possible to prevent the occurrence of problems where sex is not guaranteed.

Rotating means for such a yarn may be implemented in a variety of forms, but as shown in Figure 1 schematically the rotating means consisting of a connecting member 23 and the motor 21 and the rotating shaft of the supply reel 10 ( 20) is available,

The motor 21 rotates a separate rotary shaft 23 perpendicular to the rotary shaft of the supply reel 10,

If the yarn discharged from the supply reel (10) is left yarn can be turned left, if the right yarn can be rotated right.

Furthermore, the trimming member 50 mentioned above is provided between the delivery guide roller 40B and the guide member 31 of the impregnation tank 30,

A hollow, in particular a truncated conical hollow 51 is formed, and the diameter of the outlet 51a has an inner diameter larger than that of the yarn

The coating solution (C) buried in the discharged yarn (T1) is scraped off to determine the thickness and uniformity of the carbon layer coated on the yarn to increase the quality of the carbon yarn.

The yarn passing through the delivery guide roller 40B becomes a carbon yarn T2 through a drying means 60, and the drying means may be hot air drying means.

As shown in Figure 2, the manufacturing process using the carbon yarn manufacturing apparatus (A) is to go through a coating process a total of three times (S10) (S20) (S30), each of the impregnating tank 30 input (S11) (S21) (S31), the finishing member 50 passes (S13) (S23) (S33), and passing through the drying means 60 (S15) (S25) (S35).

In each coating process (S10) (S20) (S30), the inner diameter of the outlet 51a of the finishing member 50 is 0.05 to 0.15 mm, more preferably 0.08 to 0.12 mm,

The thickness of the carbon layer coated on the yarn (T1) is gradually increased to improve the durability of the carbon yarn and to ensure uniformity of resistance due to the uniform thickness of the carbon layer.

In the drying process (S15) (S25) (S35), the drying temperature of the first coating process is 120 ~ 150 ℃, the drying temperature of the secondary coating process is 170 ~ 180 ℃, the drying temperature of the third coating process is 200 ~ By increasing the temperature gradually to 220 ℃ to prevent the damage of the yarn that can occur when high heat is applied from the beginning to allow a quick drying.

In addition, through the aging process (S40) made for 10 to 20 minutes at 220 ~ 230 ℃ it can be ensured that the carbon layer is firmly bonded to the yarn.

After the aging process (S40) may be carried out a flame retardant treatment (S50), alternatively, the flame retardant may be mixed with the flame retardant in the carbon coating solution itself, or may be made together with the insulation coating process after the heating fabric is manufactured.

In each coating process, the feed rate of the yarn (T1) is 5 ~ 20mm / sec,

In addition, the rotational speed of the yarn T1 by the rotating means 20 is 0.03 ~ 0.1 rotation / sec, so that the appropriate carbon layer is formed.

As described above, the heating fabric H using the carbon yarn T2 obtained through the carbon yarn manufacturing apparatus and the manufacturing method according to the present invention is illustrated in FIG.

Arrange the carbon yarns T2 of the weft yarns spaced apart from each other, arrange the current-carrying wires 70A and 70B (e.g., stone wire or copper wires) at both ends, and incline the ordinary yarn T3 with the weft yarns. T1) can be manufactured to fill the gap,

Finally, the surface of the heating fabric (H) by the insulation coating of PVC, silicone, fluororesin, urethane, etc. can be improved safety.

Hereinafter, the present invention can be better understood through the preparation examples.

Production Example > Carbon yarn  Manufacturing equipment and Carbon yarn  Manufacturing process

Implement the carbon yarn manufacturing apparatus as shown in Figure 1,

The straight line distance (l1) from the entrance guide roller (40A) to the guide member (31) of the impregnation tank (30) is 1,000 mm, and the straight distance from the guide member (31) to the finishing member (50). (2) was set to 400 mm,

The incident angle θ into which the yarn T1 was introduced into the impregnation bath was 60 degrees.

The feed rate of the yarn is 10mm / sec,

The rotational speed by the rotating means 20 of the yarn was set to be six revolutions, that is, about 0.067 revolutions / sec while passing through the straight line distance l1.

While passing through the straight line (l2) and evaporated xylene used as a solvent of the carbon coating solution (C) according to the present invention,

The diameter of the outlet 51a of the finishing member 50 was 0.4 mm, 0.5 mm, and 0.6 mm in each coating step (S10), S20, and S30.

In each coating process, the drying means 60 was a hot air drying means, and the length of the duct was 3,200 mm.

The drying temperature of the primary coating process is 120 ~ 150 ℃, the drying temperature of the secondary coating process is 170 ~ 180 ℃, the drying temperature of the third coating process is gradually increased to 200 ~ 220 ℃,

Aging process (S40) was to be 7,000mm in length of the duct to proceed for about 10 minutes at 220 ~ 230 ℃.

As a result of the experiment to reach a relatively low temperature 80 ℃ by producing a heating fabric using a carbon yarn prepared according to the present invention,

In the case of the heating fabric according to the present invention takes about 19 seconds to reach 80 ℃,

A company's comparative heating fabric took about 300 seconds.

The heating fabric of the comparative example was found to have higher power consumption.

As described above, the present invention is provided with a rotation means capable of turning left or right of the yarn which is left or right when passing through the impregnation tank containing the carbon coating solution. An apparatus for producing carbon yarn having a trimming member having a hollow to make the yarn discharged from the impregnation tank have an appropriate coating layer thickness and uniformity;

Through increasing the exit diameter of the finishing member through the carbon yarn manufacturing method to be repeated coating

It is possible to reduce the time to reach the target temperature of the finally produced heating fabric, reduce power consumption, and improve durability.

In the above description, although the conventionally known techniques related to the carbon coating solution, the carbon yarn, and the method of weaving the exothermic fabric are omitted, those skilled in the art will naturally be able to infer and deduce this.

In the above description of the present invention with reference to the accompanying drawings, a carbon yarn manufacturing apparatus having a specific shape and structure and the manufacturing method of a specific process order was described mainly, but the present invention can be variously modified and changed by those skilled in the art, such Modifications and variations are to be construed as falling within the protection scope of the present invention.

Claims (9)

10 to 60% by weight of carbon powder having a particle size of 0.1 ~ 0.01 ㎛, 2 to 60% by weight of graphite powder having a particle size of 15 ~ 1㎛, 0.1-20% conductive filler selected from the group consisting of magnesium oxide, zirconium carbide, silicon carbide, or a combination thereof; and 40 to 60% by weight of solids comprising 1 to 5% by weight of a coupling agent; And 15-25 weight% of solvents, 7-13% by weight of synthetic resin as a fixing agent, 0.1-0.6 wt% of dispersant, Defoamer 0.1-0.6% by weight, 0.1 to 0.6 wt% antioxidant, and 40 to 60% by weight of a solvent including a residual solvent; Carbon coating solution obtained by mixing the crushing process. The method of claim 1, The carbon coating solution, characterized in that the solid further comprises 0.1 to 15% by weight of far infrared radiation. An impregnation tank containing a carbon coating solution and having a guide member submerged in the solution; A feed reel wound in a yarn made of left yarn or right yarn; Rotating means for rotating left when the yarn discharged from the supply reel is left yarn and right when the yarn is right yarn; An exit guide roller provided in a vertical upper portion of the yarn which passes through the guide member of the impregnation tank; The thickness of the carbon layer which is provided between the outlet guide roller and the guide member of the impregnation tank, the hollow is passed through the yarn is formed, the outlet having an inner diameter larger than the diameter of the yarn is formed is coated on the yarn A trimming member for determining uniformity; And Drying means for drying the yarn passing through the delivery guide roller; Exothermic carbon yarn manufacturing apparatus comprising a. The method of claim 3, wherein An incidence angle of the yarn introduced into the impregnation tank is a heating carbon yarn manufacturing apparatus, characterized in that 50 ~ 70 degrees. The method of claim 3, wherein The feed rate of the yarn is exothermic carbon yarn manufacturing apparatus, characterized in that 5 ~ 20mm / sec. The method of claim 5, The rotational speed of the yarn by the rotating means is a heating carbon yarn manufacturing apparatus, characterized in that 0.03 ~ 0.1 rotation / sec. The method according to any one of claims 3 to 6, The rotating means consists of a motor, a connecting member for connecting the motor and the supply reel, Exothermic carbon yarn manufacturing apparatus, characterized in that for rotating the supply reel. Exothermic carbon yarn manufacturing method using the device according to claim 3, After the impregnating tank is input, the finishing member passes, and the drying means passes through the coating process three times, According to each coating process, the exit inner diameter of the finishing member is a method for producing exothermic carbon yarn, characterized in that larger by 0.05 ~ 0.15mm. The method of claim 8, The drying temperature of the 1st coating process is 120 ~ 150 ℃, the drying temperature of the 2nd coating process is 170 ~ 180 ℃, and the drying temperature of the 3rd coating process is 200 ~ 220 ℃. Thereafter, the method for producing exothermic carbon yarn, characterized in that further undergoing an aging process made at 220 ~ 230 ℃.

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