JP2000220073A - Finishing agent for clothing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a finishing agent for clothing capable of treating a silky finish at a necessary part of the clothing simply by a housewife, etc., at home, etc., as necessary. SOLUTION: This finishing agent for clothing is characterized by finely pulverizing a silk produced by a domestic or a wild silk worm in 1-100 μm particle diameter and dispersing 0.1-50 wt.% finely pulverized silk with a mixed solvent of ethanol with water.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a finishing agent for clothing, which enables silk processing to be carried out simply and effectively.

[0002]

2. Description of the Related Art In recent years, silk has been adsorbed on various synthetic fibers or natural fibers to provide not only the appearance and softness of silk but also health and hygiene such as breathability, moisture retention and moisture release. Attention has been paid to a technique for imparting a preferable function to the fiber, and various techniques for silk-processing various fibers have been proposed. These proposals include, for example, Japanese Patent No.
No. 45, JP-A-3-269172, JP-A-7
And the methods described in JP-A-229064, JP-A-7-279053 and the like.

However, any of the above methods is a method of directly adsorbing a silk component to a fiber, and is suitable for simply applying silk to clothing when necessary, or applying silk only to a specific portion of clothing. Not a way.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide a housewife or the like in a home or the like that can easily and easily use a necessary part of clothing when necessary. It is an object of the present invention to provide a garment finish which can be provided only with a silk finish.

[0005]

According to the present invention, there is provided a finishing agent for clothing comprising a fine silk protein obtained by atomizing silk produced by a silkworm or a wild silkworm to a particle size of 1 to 100 µm;
It is characterized by being dispersed in a mixed solvent of ethanol and water at a ratio of 1 to 50% by weight.

[0006] The silk used in the present invention may be any of silk fibers produced by domestic silkworms or wild silkworms. In the case of silk fibers produced by wild silkworms, natural silkworms, sacsan, erysan, mugasan, tasarsan, cricula and the like are bred on an industrial scale, and thus silk fibers such as cocoons and raw silk produced by these are used.

[0007] The silk fiber is composed of two types of proteins, namely, two fibroins and sericin that binds the fibroin. Most of the sericin is removed in the silk fiber refining process. After the refining step, the silk protein is pulverized by physical crushing or chemical treatment.

[0008] The particle size of the finely divided silk protein (hereinafter referred to as silk powder) used in the present invention is 10
When the thickness exceeds 0 μm, when the powder is dispersed in a mixed solvent of ethanol and water, agglomeration of the silk powder occurs or it is easy to separate from other components, and it is difficult to atomize the silk powder to less than 1 μm. .

The mixing ratio of ethanol and water in the mixed solvent of ethanol and water used as a dispersing agent in the present invention is such that if the amount of ethanol exceeds 70% by weight, the silk powder is likely to be denatured or agglomerated. It is preferable that ethanol in the mixed solvent is 70 to 1% by weight. If a mixed solvent of ethanol and water in the above mixing ratio range is used,
It does not damage or discolor clothing made from various finishing fibers, and there is no problem in hygiene during use.

If the dispersion concentration of the above-mentioned silk powder in the above-mentioned dispersant is less than 0.1% by weight, the application of silk to clothing becomes insufficient, and the appearance, touch, moisture retention and other functions of the clothing are reduced. The finishing effect of improvement does not appear,
If the content exceeds 50% by weight, the dispersion becomes viscous and the applicability to clothing deteriorates, or the agglomeration of the silk powder occurs and the finishing effect is hardly exhibited, so that the content is limited to 0.1 to 50% by weight. You.

The fibers constituting the garment to be finished using the garment finishing agent of the present invention may be any of natural fibers, regenerated fibers, synthetic fibers, etc., for example, cotton, hemp, wool, rayon , Polyester, nylon, acrylic and the like. Clothing made from these fibers, such as underwear, diapers, shirts, blouses,
If the clothing finish of the present invention is applied to socks, tablecloths, curtains, white coats, work clothes, sportswear, etc.,
Not only is the beauty of the appearance and the softness of silk,
Good health and hygiene functions such as breathability, moisture retention, and moisture release are imparted to the treated garment and the finishing effect is exhibited.
In the above-mentioned clothing, for example, when it is desired to apply silk only to a site having a high contact frequency with the skin such as a cuff or a neck of a shirt, the finishing agent for the clothing of the present invention is locally sprayed or applied to the site. In addition, the above-mentioned finishing effect can be exhibited.

The finishing agent for clothing of the present invention may optionally contain an antistatic agent, a softening agent, a water-absorbing improver, and the like, if necessary. Is even better.

Examples of the antistatic agent include ionic antistatic agents such as aliphatic sulfonates, higher alcohol sulfates, quaternary ammonium salt type cationic surfactants and betaine type amphoteric surfactants, and polyethylene. Examples include nonionic antistatic agents such as glycol fatty acid esters, polyhydric alcohols and fatty acid esters, and polyether polyurethanes.

Examples of the softener include polyhydric alcohols such as polyethylene glycol stearic acid monoester, glycerin ester and pentaerythritol ester, and nonionic surfactants.

Various water-absorbing polymers can be used as the water-absorbing agent, and examples thereof include polyacrylates and starch-grafted polyacrylates.

Further, in order to suppress aggregation and sedimentation of the silk powder in the finishing agent for clothing of the present invention, conventionally known sedimentation inhibitors and dispersants may be added. Examples of the precipitation inhibitor include fatty acids and higher alcohol-based nonionic surfactants, and examples of the dispersant include sodium polystyrene sulfonate and ammonium salts of sulfonic acid copolymers.

[0017]

According to the finishing agent for clothing of the present invention, a finely divided silk protein obtained by atomizing silk produced by silkworm or wild silkworm to a particle size of 1 to 100 μm is mixed with ethanol at a ratio of 0.1 to 50% by weight. Since the present invention is dispersed in a mixed solvent of water, when the present invention is applied to clothing, the luster resembling that of silk is imparted to improve the beauty of the appearance, and further, the moisture absorption of the stratum corneum of human skin is improved It helps prevent skin dryness and helps prevent rough skin and aging of the skin. In addition, silk can also be expected to have the effect of suppressing stuffiness and itching of the skin of infants and the elderly.

[0018]

EXAMPLES (Preparation of silkworm silk powder) A silk product obtained from silkworm was refined and pulverized to obtain a silk powder. The molecular weight measured by the gel filtration method is 10,000 or more, the average particle diameter measured by a Coulter counter is 20 to 80 μm, and the maximum is 10 μm.
0 μm, minimum 1 μm.

(Preparation of Finishing Agent for Clothing) 50 g of the above-mentioned silk powder was dispersed in 1 liter of a 30% aqueous ethanol solution to prepare a silk powder dispersion (A). Also, 5
% Polyethylene glycol fatty acid ester aqueous solution and 5%
An aqueous solution (B) mixed with an equivalent amount of an aqueous solution of a polyether-based polyurethane was prepared. Then, (A) and (B) were mixed at a ratio of 1: 2 to prepare a finishing agent (C) for clothing.

(Application to clothing and evaluation)
The mixture was placed in a spray container, and about 10 ml was sprayed on a neck portion of a nylon shirt. After spraying, 10 test subjects were allowed to wear the treated shirt and the untreated shirt which were naturally dried for 8 hours each, and the feeling of use was evaluated according to the following evaluation criteria.

(Evaluation Criteria) 5 points with very smooth neck and very good usability.・ Smooth collar and good usability 4 points.・ Normal 3 points.・ The feeling of use is bad because the neck is sticky. -The neck is very sticky and the usability is very bad.

(Evaluation Results) Processed shirts (average value of 10 subjects) 4.2 points.・ Untreated shirts (same as above) 2.8 points.

In this example, silkworms were used, but instead of silkworms, natural silkworms, saksan, erysan, tasarsang, mugasan, and cricula were used. A finishing agent for clothing was prepared in the same manner as in this example, and the same evaluation was performed. As a result, almost the same evaluation results were obtained.

[0024]

According to the present invention, the finishing agent for clothing of the present invention has the above-mentioned constitution. According to the present invention, a gloss very similar to silk is imparted to improve the beauty of the external appearance. Improves the hygroscopicity of the skin and suppresses the drying of the skin to help prevent rough skin and aging of the skin. In addition, silk can also be expected to have the effect of suppressing stuffiness and itching of the skin of infants and the elderly.

Claims (1)

[Claims] Claims: 1. A silkworm produced by a domestic or wild silkworm,
A finishing agent for clothing, wherein finely divided silk protein obtained by finely dividing the particle size to 00 μm is dispersed in a mixed solvent of ethanol and water at a ratio of 0.1 to 50% by weight.