Acrylonitrile-containing fiber dyeable with disperse dyes, method for producing same, and fiber product containing same

Patent metadata

Field	Value
Publication number	US-10760185-B2
Application number	US-201715729059-A
Country	US
Kind code	B2
Filing date	Oct 10, 2017
Priority date	Apr 10, 2015
Publication date	Sep 1, 2020
Grant date	Sep 1, 2020

Abstract

An acrylonitrile-containing fiber includes 100 parts by mass of a polymer including at least 15 parts by mass of acrylonitrile; and 1.0 to 50 parts by mass of a water absorbent resin having a pure water absorption capacity (g/g) with respect to its own weight of at least 10 but less than 100, wherein the fiber is dyeable with a disperse dye.

First claim

What is claimed is:

1. An acrylonitrile-containing fiber, comprising:
100 parts by mass of a polymer comprising at least 15 parts by mass of acrylonitrile; and
1.0 to 50 parts by mass of a water absorbent resin having a pure water absorption capacity (g/g) with respect to its own weight of at least 10 but less than 100,
wherein the polymer comprises, with respect to 100 parts by mass of the polymer:
30 to 70 parts by mass of the acrylonitrile;
30 to 70 parts by mass of halogen-containing vinylidene monomer and/or halogen-containing vinyl monomer; and
0 to 10 parts by mass of vinyl monomer copolymerizable therewith,

wherein the fiber is dyeable with a disperse dye, and
wherein the water absorbent resin comprises a modified polyalkylene oxide.

2. The acrylonitrile-containing fiber according to claim 1 , wherein the water absorbent resin comprises crosslinked polyethylene oxide composed of polyethylene oxide and polyisocyanate.

3. A method for producing an acrylonitrile-containing fiber, the method comprising:
preparing a spinning solution by dissolving, in an organic solvent, 100 parts by mass of a polymer comprising at least 15 parts by mass of acrylonitrile and 1.0 to 50 parts by mass of a water absorbent resin having a pure water absorption capacity (g/g) with respect to its own weight of at least 10 but less than 100; and
spinning the spinning solution to obtain an acrylonitrile-containing fiber, wherein the acrylonitrile-containing fiber is dyeable with a disperse dye,
wherein the polymer comprises, with respect to 100 parts by mass of the polymer:
30 to 70 parts by mass of the acrylonitrile;
30 to 70 parts by mass of halogen-containing vinylidene monomer and/or halogen-containing vinyl monomer; and
0 to 10 parts by mass of vinyl monomer copolymerizable therewith, and

wherein the water absorbent resin comprises a modified polyalkylene oxide.

4. The method for producing an acrylonitrile-containing fiber according to claim 3 , wherein the water absorbent resin comprises crosslinked polyethylene oxide composed of polyethylene oxide and polyisocyanate.

5. The method for producing an acrylonitrile-containing fiber according to claim 3 , wherein the organic solvent is one selected from the group consisting of N,N-dimethylformamide, N,N-dimethylacetamide, N,N-dimethylsulfoxide, and acetone.

6. The method for producing an acrylonitrile-containing fiber according to claim 5 , wherein the organic solvent is one selected from the group consisting of N,N-dimethylformamide, N,N-dimethylacetamide, and N,N-dimethylsulfoxide.

7. A fiber product comprising an acrylonitrile-containing fiber, wherein the acrylonitrile-containing fiber comprises:
100 parts by mass of a polymer comprising at least 15 parts by mass of acrylonitrile; and
1.0 to 50 parts by mass of a water absorbent resin having a pure water absorption capacity (g/g) with respect to its own weight of at least 10 but less than 100,
wherein the acrylonitrile-containing fiber is dyeable with a disperse dye,
wherein the polymer comprises, with respect to 100 parts by mass of the polymer:
30 to 70 parts by mass of the acrylonitrile;
30 to 70 parts by mass of halogen-containing vinylidene monomer and/or halogen-containing vinyl monomer; and
0 to 10 parts by mass of vinyl monomer copolymerizable therewith, and

wherein the water absorbent resin comprises a modified polyalkylene oxide.

8. The fiber product according to claim 7 , wherein the water absorbent resin comprises crosslinked polyethylene oxide composed of polyethylene oxide and polyisocyanate.

9. The fiber product according to claim 7 , wherein the fiber product comprises:
at least 10% by mass of the acrylonitrile-containing fiber; and
90% by mass or less of one or more fibers selected from the group consisting of a natural fiber, a regenerated fiber, a semisynthetic fiber, and a synthetic fiber other than the acrylonitrile-containing fiber.

10. The fiber product according to claim 9 , wherein the fiber product comprises 30 to 70% by mass of the at least one type of fiber.

11. The fiber product according to claim 7 , wherein the fiber product further comprises a cellulosic fiber.

12. The fiber product according to claim 11 , wherein the cellulosic fiber is one or more fibers selected from the group consisting of cotton, linen, rayon, polynosic, cupra, and cellulose acetate fibers.

13. The fiber product according to claim 7 , wherein the fiber product further comprises a polyester-based fiber.

14. The fiber product according to claim 7 , wherein the acrylonitrile-containing fiber is dyed with a disperse dye.

Assignees

• Kaneka Corp

Inventors

• Tanaka Takeshi
• Hashimoto Tomomichi

Classifications

• D06P3/72 Primary

  using dispersed dyestuffs · CPC title

• D01F6/38

  comprising unsaturated nitriles as the major constituent · CPC title

• D02G3/04

  Blended or other yarns or threads containing components made from different materials · CPC title

• D01F6/18 Primary

  from polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide · CPC title

• D01F6/54

  of polymers of unsaturated nitriles · CPC title