JPH02182968A - Production of pile fabric having excellent heat-insulation - Google Patents

Abstract

PURPOSE:To obtain the subject knit or woven fabric having excellent heat- insulation and comfortableness by sufficiently opening the fiber tip parts of a pile fabric and uniformly and firmly attaching a binder containing far infrared radiation inorganic particles. CONSTITUTION:The fiber tip parts of a pile fabric composed of preferably a hygroscopic fiber such as cotton or wool are sufficiently split and opened. The split tip parts are sprayed with a binder such as polyurethane resin, acrylic resin, etc., containing far infrared radiation inorganic particles such as cobalt oxide, iron oxide, zirconium oxide or manganese oxide. The far infrared radia tion particles are uniformly and firmly bonded to the fiber to afford a pile fabric having excellent heatinsulation. The fabric is suitable for vest, insole, carpet cover cloth, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for attaching far-infrared emitting inorganic particles to the tips of pile knitted fabrics.

[Conventional technology]

Pile knitted fabrics are generally made of natural fibers such as cotton and wool, and synthetic fibers such as acrylic fibers and polyester fibers. These pile knitted fabrics usually require heat retention,
For example, attempts have been made to improve heat retention by increasing the length of the pile, increasing its density, and blending a high percentage of wool, which has particularly good heat retention, but there are limits to improving heat retention. , special measures are required to overcome this limit.

On the other hand, it is known that far-infrared emitting inorganic particles are attached to clothing for the purpose of thermal therapy and heat retention of the body. However, it is not known to attach such far-infrared emitting inorganic particles to a 1 m pile. In particular, it is not known to apply it only to the tips of hair with a pile of 1m.

[Problem that the invention seeks to solve]

However, it is not easy to uniformly and firmly adhere far-infrared emitting inorganic particles, which have poor adhesive properties, such as sand grains, only to the hair tips of a pile knitted fabric.

The present invention aims to solve this problem, and the obtained pile knitted fabric with far-infrared ray-emitting inorganic particles can be worn with the ends of the hair on the inside to obtain excellent heat retention and medical effects. be.

[Means for solving problems]

In order to achieve the above object, the present invention is characterized in that the hair ends of a pile knitted fabric are sufficiently divided and opened, and a binder containing far-infrared emitting inorganic particles is sprayed onto the hair ends. It is something to do.

The materials for the pile knitted fabric to which the present invention is applied include natural fibers such as cotton and wool, synthetic fibers such as acrylic fibers and polyester fibers, or blended or knitted products of these. From this point of view, hygroscopic fibers such as cotton and wool are preferred. The knitting structure of the pile knitted fabric is not particularly limited.
The pile may also be looped or spread.

The far-infrared emitting inorganic particles used in the present invention include ceramic particles that emit far-infrared rays with a wavelength of 4 to 25 μ, which is most effective for the human body at a temperature near body temperature, such as cobalt oxide, iron oxide, zirconium oxide, manganese oxide. , copper oxide, silicon oxide, titanium oxide, chromium oxide, aluminum oxide, silicon carbide, etc. are used, and these inorganic particles are combined with betalite, cordierite, mullite, clay, etc. It is also used as a sintered body. The particle size of these inorganic particles is preferably 0.1 to 30μ.

These inorganic particles are used by mixing with a binder, and the binder may include a resin that has a soft texture and good adhesion to the pile of pile knitted fabrics, such as urethane elastomer resin, acrylic ester. These resins are dissolved in a solvent such as toluene, and are usually emulsified and diluted with water before use.

When spraying the above inorganic particle-sized binder,
It is necessary to sufficiently open the pile surface of the pile knitted fabric, especially the hair tips. Next, a binder containing the above-mentioned far-infrared emitting inorganic particles is applied to the ends of the hair of the Vile knitted fabric by spraying, but at this time, it is preferable to take care to prevent the ends of the hair from adhering to each other.

After spraying the binder, the pile knitted fabric is sprayed with a lubricant such as an amino-modified silicone resin oil, if necessary, to improve slippage, and further subjected to finishing processes such as splitting, polishing, and shearing.

Further, if necessary, the above inorganic particle-sized binder may be further applied to the back side of the pile knitted fabric.

The method may be a spraying method or a normal back gluing method.

The structure of the obtained far-infrared emitting inorganic particle-added pile knitted fabric will be explained with reference to the drawings. FIGS. 1 and 2 are enlarged cross-sectional views showing the structure of the pile knitted fabric obtained by the method of the present invention, respectively. In Fig. 1, pile yarn (3) is added to the ground structure woven by warp (1) and weft (2).
is inserted, and a binder (5) containing far-infrared emitting inorganic particles is attached to the tip portion (4) of the bristles.

In addition, Figure 2 shows a binder containing far-infrared emitting inorganic particles (
5) is attached, and a binder layer (6) containing far-infrared emitting inorganic particles is also provided on the back side of the ground tissue.

The invention will now be further explained with reference to examples.

〔Example〕

Example 1 In weaving a double-sided wool pile fabric, 100% acrylic fiber (2152) was used as the ground warp, and 100% polyester fiber (3) was used as the ground weft and drawn weft for pile drawing.
0/2) and 100% shrink-proof wool (
2/32), using yarn with a twist coefficient α = 67 and a top/bottom ratio of 55%, the pile length was 5N on the front side and 6.5 m on the back side, the pile density was set at 50 pieces/inch, and the ground warp yarn was only in the bottom part. The yarn is fed through a dropper, and the pile yarn passes through a drive roller and an auxiliary roller, passes through a separation rod, a tromper, and a belt, and is fed to the double weave section, where it is woven with a 100% weave. The yarn was cuffed at its center to create two pile fabrics. The basis weight of this gray fabric was 864 g/m. By pulling out the drawn wefts on the back side of this gray fabric, the pile was pulled out to form a double-sided pile fabric. This fabric was dyed beige with an acid dye using a Wins dyeing machine, softened, and dried in a tumble dryer. Thereafter, both the front and back sides were thoroughly split, and the pile portion was opened to increase the surface area.

On the other hand, Mn0z 60%, Fe, 0.
A metal oxide mixture of 20% CuO, 10% CuO, and CooIO% was calcined at 1200°C, and this calcined product was blended with cordierite at 30%. 1) After firing at 50°C,
15% of this inorganic powder, 30% of urethane resin, 15% of acrylic acid ester resin, 4% of water
0% was mixed and stirred to prepare a stock solution for treatment.

Water was added to this stock solution in a ratio of 1 part water, dispersed and mixed, and sprayed on the surface of the pile fabric at an apparent amount of 200 g/M. The fabric is also treated in the same manner as above, and the front and back sides of this fabric are split with hair,
Shearing was performed to obtain a double-sided wool blanket. In addition to the heat-retaining properties of the wool-based blanket, this double-sided wool blanket was found to improve the perceived temperature due to the far-infrared radiation of the attached inorganic powder, which increased blood circulation.

Example 2 Using acrylic yarn fiber (1/14) as the pile yarn and acrylic fiber (1) 52) as the ground yarn, the pile was knitted with a 16G seal milling machine for 381 m and 13 stitches, and the pile surface was The hair was sufficiently split and opened.

On the other hand, the same inorganic powder 15 as in Example 1 that emits far infrared rays
%, 30% urethane resin, 10% toluene, 20% acrylic ester, and 25% water were mixed and stirred to prepare a stock solution.

Acrylic acid ester resin for 1 part of this stock solution! ,5. These were added in a ratio of 1 part water, mixed and stirred, and sprayed onto the pile surface of the pile knitted fabric at a rate of 300 g/m (apparent amount) with a nozzle, and then tented and dried with a tenter. The pile of this fabric was split, and the ends of the pile were sheared and finished by applying borisha four times at 140°C to 100°C. A pile knitted fabric with a basis weight of 450 g/m was produced. This fabric was used to make vests and shoe insoles. The vest was effective as a thermal vest. That is, the attached inorganic powder is warmed by body temperature, and the heat retention effect is improved by emitting far infrared rays. On the other hand, the insoles of the shoes did not make the feet damp due to the effect of far-infrared emitting inorganic powder, giving the shoes a supple and smooth feel.

Example 3 A bulky yarn of acrylic fiber (2/32) was used as the pile yarn, and a yarn made of acrylic fiber (1) 52) yarn and polyester (150d) processed yarn was used as the ground yarn, and the drawing process was carried out at 19.
A pile knitted fabric was produced by knitting using a seal milling machine under the conditions of 12 mm and 12 mm.

- 20% of the same inorganic powder as Example 1 that emits infrared rays
A stock solution was prepared by mixing and stirring 35% urethane resin, 10% toluene, 10% acrylic ester, and 35% water.

Mix and stir this stock solution in a ratio of 1 part acrylic ester and 1 part water, and apply an apparent amount of 300 g to the back side of the knitted fabric.
The mixture was sprayed at a ratio of 0.1 m/m, and then tented and dried using a tenter. Next, after the pile of this fabric was thoroughly combed with a hair splitter, water was mixed and stirred at a ratio of 2 parts water to 1 part stock solution of the above-mentioned inorganic powder, and an apparent amount of 300 g / The mixture was sprayed at a ratio of m and dried using a tenter. The pile portion of this fabric was split again and the tips of the pile threads were sheared. When this fabric was used to make a thermal vest, the attached far-infrared emissive inorganic powder was warmed by body heat and was effective. On the other hand, when the pile knitted fabric that had been turned over again was dried in a tumbler to form a sheep-like knitted fabric and used as a shoe insole, a smooth and refreshing effect was observed.

Example 4 As in Example 1, yarn-dyed cotton yarn (30/2
), using cotton yarn (40/2) for the ground warp and 100% polyester (40/2) for the ground weft, double-sided pile with 22 feathers, 120% weave, pile length 3 m/m, and 62 threads/in. made textiles. The basis weight of this gray material was 669 g/m.

On the other hand, the same inorganic powder 15 as in Example 1 that emits far infrared rays
%, urethane resin 30%, acrylic acid ester resin 15%
% and 40% water were mixed and stirred to obtain a stock solution.

This stock solution was dispersed and mixed in a ratio of 1 part, 1 part of acrylic acid ester resin, and 1 part of water, and was sprayed on the front and back sides of the double-sided pile fabric (before pulling out the weft) at an apparent amount of 300 g/m, and was spread-dried. .

Thereafter, by pulling out 4 out of 12 weft polyester yarns (40/2) on the back side of the sprayed double-sided pile fabric, the pile on the front side was pulled out to the back side.

Inorganic powder that emits far-infrared rays remained attached to the ground yarn, and the front and back pile cotton was sandwiched together, creating a sand inch-like appearance. The front and back sides of this pile were split and sheared. This finishing cloth is cut into 200 cIll and both sides are made of 100% cotton.
I used it as a blanket. This blanket was found to be effective in improving body temperature and improving blood circulation due to far-infrared rays emitted from attached inorganic oxides.

〔Effect of the invention〕

As described above, according to the present invention, far-infrared emitting inorganic particles can be uniformly applied to the ends of piles of pile knitted fabrics made of natural fibers, recycled fibers, and synthetic fibers. Moreover, it is possible to apply it firmly.

The resulting pile is coated with far-infrared radioactive inorganic particles! , WPa products are effective for use in vests, coat liners, bed sore prevention mats, shoe insoles, hot carpet covers, etc., and are evenly and softly applied to interior bedding items such as bed sheets and double-sided blankets. Because it can be attached, it has a wide range of useful value.

In particular, knitted fabrics in which the pile yarn is made of hygroscopic fibers such as cotton or wool and a binder containing far-infrared emitting inorganic particles is added to the tips of the pile yarns are worn with the tips facing the side facing the body. Far infrared rays penetrate deep into the skin, dilate blood vessels, improve blood circulation, and warm not only the local area but also the entire body. Moisture such as sweat passes through a part of the hydrophobic binder and is absorbed by the hygroscopic fiber part deep in the pile, so the part that comes into contact with the skin has the advantage of being extremely comfortable to wear as a saran.

[Brief explanation of the drawing]

1 and 2 are enlarged cross-sectional views showing the structure of a pile knitted fabric obtained by the method of the present invention, respectively. I: warp, 2: weft, 3: pile yarn, 4;
Hair tip portion, 5: Binder 6: Binder layer on the back side of the knitted fabric. Figure 1 Patent applicant Toyo Kogyo Co., Ltd. Patent applicant Aono Pile Co., Ltd. Figure 2

Claims (2)

[Claims] (1) Excellent heat retention characterized by sufficiently splitting and opening the hair ends of the pile knitted fabric, and spraying and applying a binder containing far-infrared emitting inorganic particles to the hair ends. A method for manufacturing pile knitted fabrics. (2) Zirconium oxide, cobalt oxide, iron oxide, manganese oxide, steel oxide, titanium oxide, silicon oxide, silicon carbide,
Production of a pile knitted fabric with excellent heat retention according to claim (1), characterized in that it contains one or more far-infrared emitting inorganic powders selected from the group consisting of chromium oxide and aluminum oxide. Law.