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Substrate for artificial leathers, artificial leathers and production method of substrate for artificial leathers

A kind of artificial leather, substrate technology, used in non-woven fabrics, textiles and papermaking and other directions

Active Publication Date: 2005-07-13
KURARAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, a substrate for artificial leather that simultaneously satisfies mechanical properties, softness and firmness, and light weight has not been conventionally manufactured.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

manufacture example 1-1

[0088] Manufacture of Composite Staple Fiber 1

[0089] While metering with a gear pump, melts of nylon 6 (average molecular weight: 18,000) used as the first component and low-density polyurethane (melt index: 65 g) used as the removable component were fed from their respective feed systems. / 10min, at 190°C and under a load of 2160gf), the melt is fed into a spinneret (orifice diameter: 0.45 mm), which has a device for defining fibers by distributing and mixing two melts The internal structure of the section. The composite melt extruded from the nozzle of the spinneret is wound on a bobbin while being exposed to cooling air to prepare a composite fiber having a cross-section in which 50 nylon 6 chains of approximately the same size The segments are distributed in a matrix component of low density polyurethane. The ratio of nylon 6 / low density polyurethane was 55 / 45 and the elongation at break was 420%. During the staple fiber spinning operation, the feed temperature of th...

manufacture example 1-2

[0091] Manufacture of composite staple fibers 2

[0092] Except that nylon 6 (average molecular weight: 13000) was used as the first component, conjugated fibers having a cross-section were prepared in the same manner as in Production Example 1-1, wherein 50 fibers of approximately the same size Nylon 6 segments are distributed in the matrix component of the low density polyurethane. The ratio of nylon 6 / low density polyurethane was 65 / 35 and the elongation at break was 410%. During the staple fiber spinning operation, the feed temperature of the melt was about 280°C for nylon 6 and about 300°C for low density polyurethane, and the temperature of the spinneret was about 285°C. By drawing the conjugated fiber in the same manner as in Production Example 1-1 except that the speed ratio was 2.8 (stretching ratio = 2.8 times), a stretched conjugated fiber with an elongation at break of 70% was obtained. The drawn composite fiber was mechanically crumpled, sprayed with oil, and th...

manufacture example 1-3

[0094] Manufacture of composite staple fibers 3

[0095] Chips of nylon 6 (average molecular weight: 18000) used as the first component and chips of low-density polyurethane (melt index: 65 g / 10 min) used as the removable component were mixed at a weight ratio of 50:50. While metering with a gear pump, the composite melt of the mixture is fed from a single feed system into a spinneret (orifice diameter: 0.30 mm) with a The internal structure of the non-specific fiber cross-section of the body. The composite melt extruded from the nozzle of the spinneret is wound on a bobbin while being exposed to cooling air to prepare a composite fiber having a cross-section in which hundreds of nylon 6 strands of different sizes The segments are distributed in a matrix component of low density polyurethane. The elongation at break was 380%. During the staple fiber spinning operation, the feed temperature of the melt was about 285°C and the temperature of the spinneret was about 285°C. Th...

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Abstract

The artificial leather base of the present invention includes an elastic polymer in the gap between the tangled non -woven fabric made of polyamine microfiber beam and a gap in a non -woven fabric.The single fiber fiber of the polyamide microfiber bundle is 0.2dtex or smaller.The polyamide micro fiber bundle has a 3.5cn / dtex or a larger average toughness and 60 % or smaller average elongation.Although its apparent proportion is as low as 0.30 or smaller, the base of the artificial revolution shows high mechanical properties, such as 50N / mm or larger tear intensity.As a result, the base of the artificial revolution has a good balance between mechanical performance, feeling, and especially in the application of sneakers, and its degree is not achieved by tradition.

Description

field of invention [0001] The present invention relates to artificial leather and substrates for the base fabric of the artificial leather, which have excellent mechanical properties, flexibility and solid feeling and are light in weight compared with known similar materials. The artificial leather of the present invention is suitable for a wide range of applications of artificial leather, for example, as a material for shoes such as men's shoes, women's shoes, children's shoes, sports shoes, outdoor shoes, and work shoes; as a material for clothing such as belts and outerwear; as a material for furniture such as As exterior finishing materials for chairs, tables and closets; as interior decoration materials for buildings such as wallpapers and showcases; and as interior decoration materials for vehicles such as cars, trains, airplanes and ships. In addition, artificial leather can also be used as industrial materials or auxiliary materials, such as abrasives, water absorbents...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N7/02D06N3/00
CPCD06N3/0004D06N7/00
Inventor 山崎豪牧山法生丹波善博
Owner KURARAY CO LTD
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