Suede like artificial leather with excellent strength and elongation properties

A technology of artificial leather and elongation, applied in the direction of textiles and papermaking, household utensils, non-woven fabrics, etc., to achieve the effect of excellent strength and elongation properties, easy sewing and assembly processability

Active Publication Date: 2008-12-24
KOLON IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, they are not suitable as artificial leather for furniture and vehicles requiring high durability as well as good appearance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Sea-island type composite continuous fibers were prepared from 70% by weight of polyethylene terephthalate as a fiber-forming component and 30% by weight of copolymer polyester as an extraction component by spinning and drawing treatments , the composite continuous fibers have an overall thickness of 75 denier and can be converted into fine fiber bundles. At this time, the monofilament of the continuous fiber had a denier of 3.1 and had 16 ultrafine fibers (fiber-forming component) therein. The continuous fiber was creped and set at 170°C to give it a suitable constant load elongation.

[0056] The composite fibers thus obtained were used as warp yarns and weft yarns in the process of producing a woven fabric by twisting at 650 twists / minute in a twisting machine. The warp and weft yarns were fabricated into a woven fabric having a warp density of 70 yarns / inch and a weft density of 70 yarns / inch. The constant load elongation in the length (machine direction) directio...

Embodiment 2 to 3 and comparative example 1 and 2

[0059] A composite sheet for artificial leather was prepared in the same manner as in Example 1, except that the kinds and fineness of warp and weft yarns used in the production of the woven fabric were changed as in Table 1. Physical properties were evaluated and are shown in Table 2.

[0060] Preparation conditions

[0061] Classification

[0062] Evaluation results of physical properties of the composite sheet of suede-like artificial leather

[0063] Classification

[0064] *The machine direction is the warp direction of the woven or knitted fabric constituting the composite sheet for suede-like artificial leather, and the transverse direction is the weft direction of the woven or knitted fabric.

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Abstract

The present invention relates to a suede-like artificial leather with excellent strength and elongation properties. The suede-like artificial leather comprises a composite sheet having polyurethane filled therein, the composite sheet comprising: a non-woven fabric of ultrafine short fibers entangled with each other and having a thickness less than 0.3 denier; and a woven or knitted fabric placed in the non-woven fabric, entangled with the ultrafine short fibers of the non-woven fabric, and having an constant load elongation of 10 to 30 percent at a load of 8kgf, wherein the tensile strength in longitudinal and lateral directions is 35 to 60kgf / 50mm and the constant load elongation in longitudinal and lateral directions is 8 to 25 percent. The suede-like artificial leather is useful as materials for vehicles and furniture requiring durability because of its excellent tensile strength and constant load elongation.

Description

technical field [0001] The present invention relates to a suede-like artificial leather having excellent strength and elongation properties, and more particularly, to a high-durability material useful for vehicles, furniture and the like because of its excellent tensile strength and Constant load elongation. [0002] Now, artificial leather made of non-woven fabrics with three-dimensionally cross-linked microfibers and polyurethane resin (polyurethane elastomer) impregnated in non-woven fabrics is widely used as a material to rapidly replace natural leather for furniture or vehicles, The reason is that it has a soft touch similar to natural leather as well as a unique appearance. [0003] In recent years, artificial leathers having high functionality and conventional features that imitate natural leather's soft touch and unique appearance are being actively researched. In particular, there is a need for an artificial leather which requires dimensional stability to have durab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/14B32B5/26D03D1/00D04H1/488D04H1/498D06M15/564D06M101/18D06M101/32D06M101/34D06M101/38
CPCB32B5/06B32B5/26D06N3/0004D06N3/0013B32B5/022B32B5/024B32B5/026B32B5/10B32B27/40B32B2260/021B32B2260/046B32B2262/0253B32B2262/0261B32B2262/0284B32B2262/0292B32B2262/14B32B2274/00B32B2307/54B32B2307/718B32B2601/00B32B2605/003Y10T442/2008D06N3/14D06N3/00
Inventor 黄永男金元俊姜盛元
Owner KOLON IND INC
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