KR840001749B1 - Generation of neat material in cotton fabrics - Google Patents

Abstract

Heat-generating cotten fabric are prepd. by lengthwiseweaving conductive carbon-fiber filaments (2) for both bring of lengthwise-woven cotton fabrics, while forming electrodes (3) at regular intervals; then breadthwise-weaving conductive carbon-fiber filament(4). at regular intervals of breadthwise-woven carbon0fiber filaments(4).

Description

Planar heating element manufacturing method

Figure 1 (a) is a woven fabric by mixing the cotton yarn and carbon fiber yarn of the present invention. (b) is an enlarged view of the portion A in (a)

2 is a partially cutaway perspective view of the present invention.

* Explanation of symbols for main parts of the drawings

2,2 ': conductive carbon fiber yarn 3: electrode

4: cotton yarn

The present invention relates to a method for producing a planar heating element woven by mixing a cotton yarn and a conductive carbon fiber yarn.

Conventionally, there is a planar heating element coated with carbon black on a woven fabric, but this is manufactured by mixing various chemicals and applying it to the woven fabric and drying it, which not only makes the manufacturing process complicated but also makes the thickness of the coated carbon black uneven. The distribution of particles was uneven, so that the entire surface of the heating element did not generate heat at a uniform temperature.

When the planar heating element is folded and unfolded, there is a problem that the structure of the carbon black of the folded portion does not want to be destroyed, and when the planar heating element is used, the resistance value is changed by the change in the outside air temperature and the change in the self-heating temperature.

The present invention is to solve the above problems by arranging the carbon fiber yarns on both edges of the working line arranged in the cotton yarns to form the electrode portion, weaving the conductive carbon fiber yarns at regular intervals of the horizontal yarns while weaving the horizontal yarns By forming a heat generating surface and coating the upper and lower surfaces with synthetic resin, a planar heating element is manufactured in a simple process.

Since the planar heating element of the present invention generates heat from the woven carbon fiber yarns at regular intervals, it generates heat not only uniformly from the front surface, but also has high tensile strength and flexibility, so as not to be damaged by external impact, even if the temperature change is severe, the resistance value is not changed at all. .

C로 녹인 상태에서 지름 0.01mm~1mm 정도의 실(섬유사 형태)로 뽑아내어서된 것이다.In the present invention, the conductive carbon fiber yarn 1,600 carbon and tungsten, manganese and stainless steel

In the melted state in the C was drawn with a diameter (fiber yarn form) of about 0.01mm ~ 1mm.

In the present invention, the cotton yarn and the carbon fiber yarn are woven into a plain weave, where the plain weave is a weaving type in which the working and cross yarns are skipped one by one, and may be performed in other weaving types.

When explaining the manufacturing process of the present invention in detail as follows.

Example 1

Weaving process: In the loom, the conductive carbon fiber yarn (2) with a diameter of 0.3 mm is woven into the edges of both sides of the liner arranged in cotton yarns of arbitrary width as shown in Fig. 1 (a) and (b). At the same time as forming the electrode 3, the cross thread weaves the conductive carbon fiber yarn 2 'having a diameter of 0.25 mm in the cross yarn at intervals of weaving the cotton yarn 4 by 15 mm to form the woven fabric heating plate 1.

Example 2

Electrode lead drawing process: The woven fabric heating plate 1 woven in the first step is cut to an appropriate length, and the electrode lead line 5 is connected to the reveling 6 at one end of both electrodes 3 as shown in FIG. It connects and forms the electrode lead 5 of a woven fabric heating plate.

Example 3

Synthetic resin coating process: When the synthetic resin plate 7 is heated and pressed on both upper and lower surfaces of the woven fabric heating plate 1 formed in the second step, the synthetic resin melted between the holes and the small holes in the cross section is integrated with the upper and lower surfaces to firmly wrap the woven heating plate. A planar heating element is manufactured.

In the planar heating element of the present invention manufactured as described above, when the electric power is applied to the electrode lead 5, the conductive carbon fiber yarn 2 ', which is transverse, generates heat, and this heat is transferred to the synthetic resin plate 7, and the carbon fiber yarn 2 ') Spacing is 15mm dense, so the heating element generates heat evenly in front.

In addition, the conductive carbon fiber yarn (2,2 ') is a very thin line, and is mixed with the cotton yarn (4) and woven so that it is flexible and elastic like a cloth, so it is not damaged even when folded, and the carbon fiber yarn (2,2') has a high temperature. Since it melts at, there is no change in resistance value at room temperature and electrical characteristics do not change at all, and the front surface of the heating element generates heat uniformly.

In the present invention, the resistance value of the planar heating element can be arbitrarily set by the correlation between the distance between the electrodes 3 and the diameter of the carbon fiber yarns 2, 2 '.

As described above, the present invention not only can produce a high quality product at a low cost and a simple manufacturing process, but also has a long mechanical life due to a large mechanical strength.

Claims (1)

At both edges of the yarns arranged in cotton yarns, conductive carbon fiber yarns 2 are woven into the yarns to form electrodes 3 at a constant width, while the cross yarns are conductive carbon at every interval of weaving cotton yarns 4 at regular intervals. A planar heating element manufacturing method made by weaving a fiber yarn (2 ') in a transverse thread.

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