JPH01132882A - Processing method for modifying vegetable fiber - Google Patents

Abstract

PURPOSE: To provide a vegetable fiber with swelling properties, elasticity and shape memory by treating the vegetable fiber or its woven and knitted fabric with an alkali, removing impurities such as lignin, etc., adsorbing an animal protein on the vegetable fiber. CONSTITUTION: A vegetable fiber and its woven and knitted fabric are treated with an alkali to remove lignin and impurities except cellulose in the fiber. The vegetable fiber is immersed in a solution comprising a mixed solution of amino acid decomposing solution of plural kinds of animal proteins such as fibroin, collagen, gelatin, etc., sulfuric acid and an alcohol, neutralized and the amino acids are bonded to the fiber to provide the fiber with excellent characteristics such as swelling properties, elasticity and shape memory which have never existed conventionally.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention uses animal protein to produce vegetable fibers, woven and knitted fabrics thereof,
By adsorbing it to spun yarn 5 cotton, it can exhibit excellent properties such as wrinkle resistance, elasticity, swelling properties, and shape memory that cannot be achieved with conventional plant fibers. The present invention relates to a method for modifying vegetable fibers.

[Prior Art] Since the present invention relates to a new fiber based on a completely new structure and has no improvement elements, there is no prior art.

To put it simply, there are two ways to impart elasticity to yarn: one is to give it elasticity by ``twisting'' through the number of ``twists,'' and the other is to use a strong alkali. This method not only differs from the present invention in terms of its basic technical structure, but also is significantly inferior in its effectiveness.

[Problems to be Solved by the Invention] The present invention has excellent wrinkle resistance, and also reduces the
It has 0% elasticity, and the specific gravity is about 50% lighter, which increases the bulkiness, and the "Shinayaga" also increases heat retention, and both water supply and moisture release properties increase by 1.0%. However, due to washing
It has permanent resistance to "sagging" and does not retain heat even when worn under underwear or sweats.
The first object of the present invention is to provide a method for modifying vegetable fibers based on the adsorption of animal proteins, which can exhibit various excellent properties that have never been seen before.

The second object of the present invention is to provide a method for modifying vegetable fibers that fully, reliably and permanently exhibits the above-mentioned excellent properties and that can be manufactured with high production efficiency. This is what I am trying to do.

[Means for solving problems] The above-mentioned problems are related to vegetable fibers and their textiles.

The knitted fabric is treated with alkali to remove impurities other than lignin and cellulose contained in the plant fibers, and then adsorbed with animal protein, thereby imparting swelling properties, elasticity, and shape memory properties. This problem can be solved by a method of modifying vegetable fibers.

[Example] Three examples of the method for modifying vegetable fibers of the present invention will be given, including cotton, hemp or a mixture thereof: "cotton", "yarn", and "knitted or woven fabric".

■ A sliver of vegetable fibers such as cotton, hemp, or a mixture thereof is run through a crimper machine (crimping means refraction) and is bent into a certain shape into bumps that are easy to process.

Next, place it in a container where the liquid can easily circulate. Dissolve more than 100% of the weight of caustic soda in 6 times the weight of water, immerse it in the solution for 20 minutes at 30°C to 60°C, dehydrate it, and mix it with sulfuric acid. Neutralize with 5% ethanol by weight of cotton and 3% animal protein amino acid decomposition solution by weight of cotton for 2 to 30 minutes at 30℃ to 40℃.
When the cellulose is soaked at a temperature of 0.degree. C. to neutralize the pH, animal protein amino acids form hydrogen bonds with the cellulose. This “cotton”
Dehydrate and dry, heat and heat at a temperature of 120°C to 130°C.
After 0 minutes, it is washed with water to remove excess adhering (other than bonded) amino acids, and then dried to complete the process.

■In the case of yarn, the chemicals and protein and amino acids are exactly the same as above, but the yarn is immersed in alkaline without tension, and then immersed in sulfuric acid, ethanol, and animal protein amino acid solution without tension. This is important, and after processing this "thread",
Has shape memory.

(2) In the case of woven and knitted fabrics, the amounts of each drug and amino acid protein are the same, but it is important to process the fabrics and knitted fabrics in an apparatus that circulates them. Furthermore, woven or knitted fabrics that have been immersed in an alkali can be dehydrated under pressure using rollers and then processed in the next bath, so they can be processed continuously. The subsequent processing is also the same as the pre-processing method.

The three examples mentioned above all have shape memory properties, and if the above-mentioned processing is performed by adding a crimp (refraction) to the "cotton", this crimp will be memorized and if this is spun, Creates stretchable spun yarn.

In addition, in the case of yarn, after the above processing is completed, twisting is performed at a temperature of 1
By performing moist heat setting at 20° C. to 130° C. for 10 minutes and untwisting, a yarn that remembers the shape of expansion and contraction can be obtained.

In the three examples above, the amount of caustic soda is required to be 100% or more of the weight of the processed material, the amount of sulfuric acid is 10% of the weight of the processed material, the amount of ethanol is 5% of the weight of the processed material, and the amount of ethanol is 5% of the weight of the processed material. Although the amount of proteinaceous amino acids is within 30% of the weight of the processed product, the amount of sulfuric acid may need to be increased or decreased to some extent during the neutralization step.

[Operations and effects of the invention] As stated above, the vegetable fiber cotton, yarn,
In order to adsorb the above-mentioned animal proteolytic amino acids to ``liquid fibers'' and ``knitted fabrics'', it is important that impurities other than ``lignin'' and ``cellulose'' contained in vegetable fibers are removed. , which promotes neutralization (PH) and adsorption of animal protein amino acids.

This increases swelling property (lighter specific gravity) by 50%, elasticity by 30%, and moisture absorption and release by 100%.For example, in the case of underwear, it absorbs and releases sweat, making it comfortable without clinging to the skin. Not only that, but it's also very good for your health.

In addition, since it has elasticity, it is easy to move and move, and because the specific gravity is light, there is less burden on the body and it has excellent heat retention. Therefore, it exhibits an extremely useful effect especially when used in bed sheets and bedclothes for sick people. or,
These physical properties remain permanently intact even after repeated washing.

Claims (8)

[Claims] (1) Plant fibers and their woven and knitted fabrics are treated with alkali to remove impurities other than lignin and cellulose contained in the plant fibers, and then animal proteins are adsorbed to improve swelling, elasticity and shape. A method for modifying vegetable fibers characterized by imparting memory properties. (2) As a means for neutralizing the alkalinity of vegetable fibers and fabrics and knits thereof which have been subjected to alkali treatment as described in claim 1, animal protein is made into an amino acid protein alone, and sulfuric acid or acetic acid is added to the amino acid protein. A method for modifying vegetable fibers, characterized in that the swelling and elasticity of vegetable fibers are increased by adding alcohol to the neutralization process and promoting the neutralization process. (3) A method for modifying vegetable fibers, characterized in that the vegetable fibers according to claims 1 and 2 are cotton, hemp, spun yarns thereof, and blended yarns thereof. (4) A method for modifying vegetable fibers, characterized in that the animal protein according to claims 1 and 2 is a hebroin protein derivative. (5) A method for modifying vegetable fibers, characterized in that the animal protein according to claims 1 and 2 is a collagen protein derivative. (6) A method for modifying vegetable fibers, characterized in that the animal protein according to claims 1 and 2 is a keratin protein derivative. (7) Modification of vegetable fibers, characterized in that the animal protein according to claims 1 and 2 is a mixture of multiple types of hebroin protein derivatives, collagen protein derivatives, and keratin protein derivatives. Processing method. (8) A method for modifying vegetable fibers, characterized in that the alcohol according to claim 2 is ethanol.