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High-shrinkage polyacrylonitrile fibers, yarns containing the fibers, and pile fabrics using the yarns with different pile heights

A technology of polyacrylonitrile fibers and plush fabrics, which is applied in the field of plush fabrics, can solve the problems of not mentioning shrinkage fibers, etc., and achieve the effect of excellent compression recovery

Active Publication Date: 2018-01-12
MITSUBISHI CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, shrinkage fibers of other cross-sectional shapes are not mentioned

Method used

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  • High-shrinkage polyacrylonitrile fibers, yarns containing the fibers, and pile fabrics using the yarns with different pile heights
  • High-shrinkage polyacrylonitrile fibers, yarns containing the fibers, and pile fabrics using the yarns with different pile heights
  • High-shrinkage polyacrylonitrile fibers, yarns containing the fibers, and pile fabrics using the yarns with different pile heights

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0170] "Example 1"

[0171] A copolymer composed of 90% by mass of acrylonitrile and 10% by mass of vinyl acetate was obtained by aqueous suspension polymerization. The polymer had a reduced viscosity of 2.0 in a 0.5% by mass dimethylformamide solution at 25°C. This polymer was dissolved in dimethylacetamide to prepare a spinning dope having a polymer concentration of 24% by mass. The above-mentioned spinning dope was discharged from a discharge hole of a spinning nozzle having a cross-sectional shape described in Table 1 in an aqueous solution of dimethylacetamide having a solvent concentration of 40% at a temperature of 40° C. to obtain coagulated fibers. Further, the above-mentioned coagulated fiber was stretched at a draw ratio of 5 times in hot water, washed, dried by a drying roll, and subjected to thermal relaxation treatment in a pressurized steam atmosphere, and then, in the steam stretching process Stretching was carried out to 2 times, and further mechanical crimp...

Embodiment 2～5

[0175] "Examples 2-5, Comparative Examples 1 and 2"

[0176] The polyacrylonitrile described in Table 1 and Table 2 was obtained in the same manner as in Example 1, except that the cross-sectional shape of the discharge hole of the spinning nozzle was changed so that the cross-sectional shape of the shrunk polyacrylonitrile fiber was as shown in Table 1. fiber.

[0177] In addition, with regard to the pile fabric having different pile heights, a pile fabric having different pile heights was obtained in the same manner as in Example 1 except that the fibers of the short pile portion were changed to the fibers described above.

[0178] The evaluation results of plush fabrics with different pile heights are shown in Table 3.

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Abstract

The present application provides polyacrylonitrile fibers suitable for pile fabrics with different pile heights such as high pile cloth, yarns containing the fibers, and pile fabrics using the yarns. The polyacrylonitrile fiber is a highly shrinkable polyacrylonitrile fiber with a single fiber fineness of 1-7dtex, a shrinkage rate of 20-40%, and a shrinkage bulk of 0.19-0.30mm3 / g, or a single fiber fineness of 2- 7dtex, polyacrylonitrile fiber with elongation of 50-70% and bulkiness of 0.19-0.30mm3 / g.

Description

technical field [0001] The present invention relates to polyacrylonitrile fibers suitable for pile fabrics with different pile heights, yarns containing the fibers, and pile fabrics with different pile heights obtained by using the yarns. Background technique [0002] In general, natural fur is composed of raised fibers whose tip is thinner than the root, so it is resilient, but has a unique texture that is soft to the touch. In recent years, from the viewpoint of protecting the natural environment, the use of natural fur tends to be restricted, and the development of raised products having a texture similar to natural fur using synthetic fibers is strongly expected. [0003] Synthetic fibers, especially polyacrylonitrile fibers, have the texture and gloss of animal hair, and are widely used as fleece materials for animal hair-based raising products. [0004] In the past, a large number of raised products similar to natural fur using polyacrylonitrile fibers have been marke...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/18D02G3/04D03D15/00D03D27/00
CPCD01D5/253D01F6/18D02G3/04D05C17/026D05D2209/10D10B2321/10D01D1/02D01D10/06D01F1/09D01F1/103D10B2401/061D10B2401/062D10B2401/063D10B2401/13D10B2401/16
Inventor 稻垣达彦小野原透雄
Owner MITSUBISHI CHEM CORP
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