Rayon fiber

A rayon fiber and rayon technology, applied in the field of rayon fiber, can solve the problems of being unsuitable for underwear, and the coloring of moisturizing rayon fiber becomes darker, and achieve excellent water absorption and quick-drying effects

Active Publication Date: 2019-01-15
OMIKENSHI +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, since binchotan is used in the above-mentioned moisture-retaining rayon fiber, when the amount of the binchotan is increased in order to improve moisture retention, the coloring of the moisture-retaining rayon fiber caused by the binchotan becomes darker, so it is not necessary Suitable for underwear and other purposes

Method used

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  • Rayon fiber
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Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0067] Alkali cellulose was obtained by immersing the raw material pulp in an aqueous solution of about 18% by mass of sodium hydroxide, pressing, and pulverizing. The alkali cellulose obtained above was left to stand at a temperature of 40 to 60° C. for about 6 hours, and then carbon disulfide was blown over the alkali cellulose to react the alkali cellulose with carbon disulfide to obtain xanthate. Viscose fibers were prepared by dissolving the xanthate obtained above in dilute aqueous sodium hydroxide solution.

[0068] The cellulose content in the viscose fiber obtained above was 9% by mass, the alkali content in the viscose fiber was 5% by mass, and the falling ball viscosity at 25° C. of the viscose fiber was 50 seconds. In addition, the falling ball viscosity is the value when it measured by the method described in JISZ8803.

preparation example 2

[0070] Wash with water after dissolving 1 kg of frozen Mizuzenji Spirulina. The above-mentioned Spirulina was added to 5 L of hydrochloric acid with a pH of 3.0, and heated at 60° C. for 1 hour with stirring. After taking it out from the hydrochloric acid, it was added to an aqueous solution of isopropanol containing 30% by volume of water, and heated at 60° C. Heating was carried out for about 12 hours while stirring at room temperature. Next, Spirulina Suizenji was separated from the aqueous solution of isopropanol, and dried by standing in the air at room temperature for about 12 hours to obtain about 12 g of dried Spirulina Suizenji.

[0071] About 12 g of the dried Spirulina Suizenji obtained above was added to 4 L (liters) of a 0.1N aqueous sodium hydroxide solution (the same applies hereinafter), and heated at 70° C. for 3 hours while stirring, thereby dissolving the dried Spirulina Suizenji in sodium hydroxide aqueous solution. The resulting solution was neutralized ...

Embodiment 1

[0074] The viscose fiber obtained above was mixed with the polysaccharide derived from Cyanobacteria Suizenji obtained above, and the polysaccharide derived from Cyanobacteria Suizenji was dissolved to have a uniform composition, thereby preparing a spinning dope, wherein, relative to The amount of the polysaccharide derived from Suizenji algae was 0.01 parts by mass per 100 parts by mass of the rayon contained in the viscose fiber.

[0075] For the spinning dope obtained above, the spinning nozzle with 13000 nozzles with a diameter of 0.06mm was immersed in a coagulation bath at 47°C (containing 95g / L of sulfuric acid, 350g / L of sodium sulfate and 12.5g / L of zinc sulfate). Sulfuric acid aqueous solution), extrude the spinning dope from the nozzle of the spinning nozzle with a spinning speed of 60m / min and make it coagulate, thereby perform spinning, and cut it after stretching, thus obtaining a fineness of 1.4dtex, Rayon fibers with a fiber length of 38 mm.

[0076] Next, ac...

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Abstract

The present invention provides a rayon fiber having excellent moisture absorption, water absorption, and quick-drying properties and being used for clothes such as gloves, clothes, socks, shirts and suits, materials of masks, diapers and the like, makeup wipes, and the like. The invention also provides a woven fabric containing the rayon fiber, and a nonwoven fabric containing the rayon fiber. Therayon fiber has a moisturizing property, and the polysaccharide derived from Suizenji cyanobacteria is contained in a ratio of 0.01 to 0.5 parts by mass per 100 parts by mass of the rayon fiber.

Description

technical field [0001] This invention relates to rayon fibers. More specifically, the present invention relates to rayon fibers, woven fabrics containing the rayon fibers, and nonwoven fabrics containing the rayon fibers, which are excellent in hygroscopicity, water absorption and quick-drying properties, and are expected to be used for gloves, Underwear, socks, shirts, suits, and other clothing, as well as face masks, materials for diapers, cosmetic sheets such as lotion wipes, etc. Background technique [0002] As a rayon fiber excellent in moisture retention, a moisture-retaining rayon fiber obtained by embedding a large amount of binchotan fine particles obtained by pulverizing binchotan (white charcoal) into a rayon fiber matrix has been proposed (for example, see Patent Document 1) . The above rayon fibers are excellent in moisture retention and can keep the skin moisture even after the rayon fibers are removed from the skin, so the above rayon fibers can be used for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F2/10D03D15/00D04B1/14D04H3/013
CPCD01F2/10D03D15/00D04B1/14D04H3/013D10B2201/24
Inventor 德田宏金子慎一郎植村卓司
Owner OMIKENSHI
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