JPH04185770A - Treatment of textile product - Google Patents

Abstract

PURPOSE:To impart a textile product with an effect for applying chilling or warming physiological action on the skin in excellent durability by impregnating an aqueous solution containing a scleroprotein and a water-soluble component of bamboo into a textile product, and immersing the textile in a tannin solution to fix the protein to the textile product. CONSTITUTION:An aqueous solution of a scleroprotein produced e.g. by dissolving silk is added with a bamboo extract component and a warm-feeling agent (e.g. capsaicin) or a cold-feeling agent (e.g. menthol). A textile product is impregnated with the obtained aqueous solution and immersed in a tannin solution to effect uniform and firm fixing of the scleroprotein, etc., to the surface of the textile product. The obtained product has good feeling, exhibits ultraviolet- absorptivity and keeps the warming or chilling feeling.

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a method for treating textiles.

[Conventional technology]

In general, it is well known that textiles are subjected to sanitary treatments to impart antiseptic properties, insect repellent properties, antibacterial properties, etc., as well as dyeing treatments. However, as the standard of living has improved in recent years, there has been a strong demand for the possibility of fundamentally reconsidering the materials and providing textiles with multiple functions. Therefore, the applicant of the present invention also aimed to provide textile products with an ultraviolet protection effect, and in Japanese Patent Application No. 2-67581, a water-soluble peptide obtained by hydrolyzing hard protein and a curing agent were used as the main ingredients. The authors proposed that textiles treated with a textiles treatment composition that exhibits the texture unique to hard protein and also exhibits ultraviolet ray protection effects.

In the above-mentioned conventional technology, a water-soluble resin such as polyester resin was used to promote the bonding of water-soluble scleroprotein with fibers, but its adhesion strength was not sufficient, and the surface of the treated single fibers was recycled. Only scattered proteins were retained. This was also clear from observation under an electron microscope (approximately 1500 times magnification).

On the other hand, in order to efficiently coat water-soluble protein on the fiber surface, glucose oxidase, which is a type of glucose oxidase, is used, and after mixing it with water-soluble protein and coating it on the fiber surface, it is reacted with methyl alcohol. A solidification method is also known.6 However, although textiles treated with this method are suitable for applications such as biosensors,
It was inferior in manufacturing cost and durability such as washing fastness, and was not fully satisfactory as a treatment method for textiles used in daily life. Furthermore, since warming agents and cooling agents usually exhibit their effectiveness in the presence of moisture, their effectiveness cannot be expected to be high even when they are held alone in fibers.

[Problem to be solved by the invention]

As mentioned above, this invention solves the problem of not being able to attach hard protein to everyday textiles by increasing their durability by using suitable means, and by applying hard protein to the surface of fibers by simple means. It is an object of the present invention to provide a method for treating textiles that can adhere to fibers with good properties, efficiently retain temperature range agents and cooling agents on the fiber surface, and fully exhibit their effects.

[Failure to solve the problem]

In order to solve the above problems, the present invention adopts a method of impregnating textiles with an aqueous hard protein solution and then immersing them in a tannin solution.

Furthermore, a water-soluble component of bamboo, a warming agent, or a cooling agent may be added to the aqueous hard protein solution.

The details will be described below.

First, hard proteins in the present invention include proteins derived from living organisms such as wool keratin (keratin), silk fibroin, and collagen. An aqueous solution of scleroprotein can be obtained by hydrolyzing the above-mentioned scleroprotein with an acid such as hydrochloric acid, or with a copper alkaline solution such as copper ammonia or copper ethylenediamine, or a neutral salt such as lithium bromide, calcium nitrate, or calcium chloride. Prepared by dissolving in aqueous solution. Fibroin, which accounts for 70-80% of string protein, is efficiently dissolved in a 50% calcium chloride solution. Further, unnecessary metal ions, bromide ions, and chloride ions in the hard protein aqueous solution can be removed by methods such as neutralization and dialysis, but the aqueous solution before these removal can also be used. In that case, after treatment with the tannin solution, these unnecessary substances may be removed from the textile by washing with water or post-treatment such as soaping. Among commercially available hard protein aqueous solutions, fibroin
The source is Silk Peptide manufactured by Daiichi Kasei Sangyo Co., Ltd.
As a water-soluble peptide derived from wool, manufactured by Sasaki Chemical Co., Ltd.;
Aminocol G 550 and the like can be mentioned.

Next, the tannin solution used in this invention is made from plant roots,
It is a tanning solution that exists in branches, leaves, skin, fruits, etc. and is extracted with water, and is generally referred to as a mixture that produces polyhydric phenolic acids when hydrolyzed. Among commercially available tannins, Niastrin manufactured by Mimasu Kashichi Shoten can be applied to the present invention as a liquid or powdered tannin purified from persimmons.

The water-soluble component of bamboo in this invention is a liquid agent with absorbing and releasing properties proposed by the applicant of this invention in Japanese Patent Application No. 1-180875, which is raw bamboo or activated by superheated steam. After that, the water-soluble components are extracted.

The warming agent or cooling agent used in this invention is a chemical substance that provides stimulation substantially similar to the stimulation that sensory cells in the skin receive from changes in air temperature or water temperature. Among these, temperature range agents include kabsaicin, which is known as a pungent component of plants, as well as vanillyl alcohol and its derivatives. Examples of the cooling agent include menthol, which is a component of peppermint oil, and various compounds that have a menthane skeleton similar to menthol and have a structure-activity relationship.

In this invention, the hard protein aqueous solution as described above,
In addition to treatments with tannins, warming agents, and cooling agents, surfactants, water-soluble resins, and dispersants may be used to increase the permeability of these textiles, and deodorizing and For the purpose of imparting various aromatic properties, it may be impregnated with sustained-release porous fine powder or other biologically active substances such as vitamins derived from living organisms, seaweed components, and hormones. Furthermore, the textile products after being immersed in the tannin solution described above are stable, and can then be subjected to a dyeing process, a post-treatment process using softeners (resins such as polyurethane, surfactants, etc.), and a drying process by heating. You can also do it.

The blending ratio of the water-soluble components of bamboo and water to the aqueous scleroprotein solution is 50 to 60% by weight of the scleroprotein solution and 1 part of the water-soluble bamboo component.
The amount may be increased or decreased as appropriate, with the amount being approximately 0 to 20% by weight and water being approximately 20 to 30% by weight. In addition, the impregnation of textiles in an aqueous hard protein solution and the immersion in a tannin solution are carried out at room temperature (15 to
25° C.), or may be heated as appropriate depending on the coagulation temperature of the predetermined protein.

[Effect]

According to the method for treating textiles of the present invention, after water-soluble scleroprotein is impregnated into textiles, it reacts with tannins in the presence of moisture and undergoes a structural transition (beta conversion). At this time, the protein is insolubilized, and combined with the astringency of tannin, it is thought that the fiber surface is firmly adhered to the fiber surface evenly.

In addition, when water-soluble components of bamboo are added to the hard protein aqueous solution,
The wettability between the hard protein and the fibers is improved, and the peptides are well adhered to the fiber surface. On the other hand, when a warming agent or a cooling agent is added, they are retained so as to be wrapped in protein and efficiently adhere to the fiber surface, thereby exerting their respective effects.

[Example] Experimental Example 1 Aqueous extract of carbonized bamboo (manufactured by Shinki Sangyo Co., Ltd.) was added to 60% by weight of a fibroin aqueous solution (Silk Peptide, manufactured by Daiichi Kasei Sangyo Co., Ltd.) obtained by dissolving the hard protein silk. 10! t%
A treatment solution was prepared by mixing 30% by weight of water and 30% by weight of water, and a fixing solution was prepared by mixing 1000 parts by weight of water with 3 parts by weight of powdered tannin (Niastrin, manufactured by Kashichi Mitsumata Shoten Co., Ltd.). Nylon stockings were immersed in the treatment liquid, drained, immersed in the fixative prepared above, dehydrated, and dried in a dryer at 1°C for 130 minutes.

As a result of observing the single fiber surface of the stocking fabric after the above treatment under an electron microscope (1500x magnification), a coating of uniform thickness was observed uniformly on the fiber surface.

Further, the UV protection effect of the stocking fabric after the above treatment was evaluated by the following test. In addition, untreated stockings were used as a control product.

Ultraviolet diffuse transmittance (wavelength range 200-400 nm) Test: Collect the toe part of the stocking, and use a spectrophotometer (Shimadzu: ?IPS-2000) to test the sample holder just in front of the end-on photomultiplier tube receiver. The control side was measured as air.

As a result of the above measurements, the ultraviolet diffuse transmittance of the S)7 King fabric treated in Experimental Example 1 was 8 to 18%, while that of the control product was 13 to 31%, and the transmittance was 5 to 20%. A decrease was observed. In addition, the stocking fabric of Experimental Example 1 was washed 5 to 10 times in a normal washing machine, and the fabric and the unwashed fabric were exposed to the transmitted light of an ultraviolet light bulb (Niblack Light Blue 20- manufactured by Toshiba Corporation). Comparative observations were made.

As a result, it was difficult to distinguish between the two, and it was estimated that the amount of protein removed by washing was extremely low.

Experimental Example 2 A warming agent (manufactured by Takasago International Co., Ltd.: VANILLYL BUT) was added to 100 parts by weight of the same treatment solution as that used in Experimental Example 1.
21!1 parts of YLETI (ER) and 10 parts by weight of isopropyl alcohol were added and mixed, and nylon stockings were impregnated with the mixture. Thereafter, stockings were obtained in exactly the same manner as in Experimental Example.

A thermal sensation comparison test was conducted between the treated stonking and the untreated stonking. That is, thermopure analysis was performed on adult women wearing treated or untreated stockings on one leg at 22°C.
The distribution of the red part (high temperature part) was observed. As a result, the red area that is distributed over most of the foot when wearing treated products is hardly visible on the circumferential surface when wearing untreated products, and from the thermal sensation and actual skin surface temperature, The effect of promoting blood circulation was clear.

Experimental Example 3 A cooling agent (manufactured by Takasago International Co., Ltd.: C00LrNG AGEN) was added to 100 parts by weight of the same treatment solution as that used in Experimental Example 1.
T-10) 2 parts by weight and 10 parts by weight of isopropyl alcohol
Parts by weight were added and mixed, and nylon S7 King was impregnated into the mixture. Thereafter, treated stockings were obtained in exactly the same manner as in Experimental Example 1.

Thermopure analysis was performed on the stockings treated with this treatment agent as well as untreated stockings and kings in exactly the same manner as in Experimental Example 2, and the results showed that almost no red areas were visible on the surface of the feet wearing the treated stockings. Ta.

Experimental Example 4 0.5 parts by weight of vitamin E stock solution (manufactured by Nisshin Seifun Co., Ltd.: tocopherol acetate) was added to 100 parts by weight of the same treatment solution used in Experimental Example 1, and nylon stockings were impregnated with this. . Thereafter, stockings were impregnated in exactly the same manner as in Experimental Example 1.

When the ultraviolet light diffused transmittance of the stockings was measured in Experimental Example 1, the same results as in Experimental Example 1 were obtained, and the stockings were also very comfortable to the skin.

〔effect〕

As explained above, in this invention, the natural peptide derived from scleroprotein can be evenly and firmly coated on the fiber surface, and the texture and ultraviolet absorbability of the scleroprotein itself can be fully exhibited.

In addition, we have made it possible to retain warming and cooling agents, which were previously difficult to retain in fibers in a state where they can fully exert their effects, together with protein, so these effects are sustained and blend well with the skin. This makes it possible to produce functional textile products, and it can be said that the industrial utility value of this invention is extremely high.

Patent applicant: Shinki Sangyo Co., Ltd. Same agent Kama 1) Bunji and 2 others

Claims (4)

[Claims] (1) A method for treating textiles in which the textiles are impregnated with an aqueous hard protein solution and then immersed in a tannin solution. (2) The method for treating textiles according to claim 1, wherein a water-soluble component of bamboo is added to the aqueous hard protein solution. (3) The method for treating textiles according to claim 1 or 2, wherein a warming agent is added to the aqueous hard protein solution. (4) The method for treating textiles according to claim 1 or 2, wherein a cooling agent is added to the aqueous hard protein solution.