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High strength ultrafine fiber simulation composite lether and its manufacturing method

A technology of superfine fiber and composite leather, applied in textiles and papermaking, etc., can solve the problems of large difference in tensile strength and insufficient high resilience, and achieve the effects of small deformation, good elasticity and reliable manufacturing method

Inactive Publication Date: 2007-04-04
SHANDONG TONGDA ISLAND NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method that can not only maintain the existing advantages of the existing island-in-the-sea superfine fiber non-woven synthetic leather products, but also solve the problems of large difference in tensile strength in the warp and weft direction and insufficient high strength and high resilience. High-strength microfiber simulated composite leather and its manufacturing method to meet the market's demand for high-grade imitation leather products

Method used

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  • High strength ultrafine fiber simulation composite lether and its manufacturing method
  • High strength ultrafine fiber simulation composite lether and its manufacturing method
  • High strength ultrafine fiber simulation composite lether and its manufacturing method

Examples

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Effect test

Embodiment 1

[0034] Nylon-6 and polyethylene are mixed and melted in 70:30 parts by weight, and drawn by a spinning machine to make (3-7)D×(30-65)mm sea-island composite fibers; using textile technology, the The above-mentioned island-in-the-sea composite fiber is made into a woven fabric with a thickness of 0.3mm; the above-mentioned island-in-the-sea composite staple fiber is made into an average grammage of 160g / m by non-woven fabric weaving technology 2 , a non-woven fabric with a thickness of 0.5mm; then the obtained one-layer non-woven fabric and one-layer woven fabric are laminated according to the mode of accompanying drawing 1, and the needle density is 1200 needles / cm 2 Needle-punched under the same conditions to make the base fabric. Vacuum impregnation treatment with 18% polyurethane impregnating solution, passing the impregnating solution at a uniform speed, so that polyurethane is impregnated in the fiber gap, the impregnated amount of polyurethane is 25% of the weight of the...

Embodiment 2

[0037]Nylon-6 and polyethylene are mixed and melted in 65:35 parts by weight, and drawn by a spinning machine to make (3-7)D×(30-65)mm sea-island composite fibers; using weaving technology, the The above-mentioned island-in-the-sea composite fiber is made into a woven fabric with a thickness of 0.5 mm; the above-mentioned island-in-the-sea composite short fiber is made into an average grammage of 300 g / m by using non-woven fabric manufacturing technology 2 , a non-woven fabric with a thickness of 1.0mm; the above-mentioned two-layer non-woven fabric and one-layer woven fabric are laminated according to the method of accompanying drawing 3, and the needle density is 1500 needles / cm 2 Acupuncture compound under the conditions to make the base fabric; use 20% polyurethane impregnating liquid for vacuum impregnation treatment, pass the impregnating liquid at a uniform speed, so that the polyurethane is impregnated in the fiber gap, and the impregnation amount of polyurethane is 35%...

Embodiment 3

[0040] Polyester and polyvinyl alcohol are mixed and melted in 80:20 parts by weight, and drawn by a spinning machine to make (3-7) D × (30-65) mm sea-island composite fibers; using weaving technology, the The above-mentioned island-in-the-sea composite fiber is made into a woven fabric with a thickness of 0.5 mm; the above-mentioned island-in-the-sea composite short fiber is made into an average grammage of 300 g / m by non-woven fabric weaving technology 2 , a non-woven fabric with a thickness of 1.0mm; the above-mentioned one-layer non-woven fabric and two-layer woven fabric are laminated according to the mode of accompanying drawing 2 and bonded with porous polyurethane to make a composite base cloth; with 25% concentration polyurethane impregnation solution Carry out vacuum impregnation treatment, pass the impregnation solution at a uniform speed, so that the polyurethane is impregnated in the fiber gap, the impregnation amount of polyurethane is 20% of the weight of the bas...

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Abstract

The present ivnention relates to a high-strength ultrafine fibre imitation leather. It is made up by using sea-island ultrafine fibre base cloth through processes of impregnating with polyurethane, extracting treatment and after-finishing. The described base cloth is a double-layer or more than double-layer composite base cloth formed from sea-island composite fibre woven fabric and non-woven fabric which are combined together by means of needling process or cohesive process, then said invention makes the composite base cloth undergo the processes of impregnating with polyurethane, hardening, extracting 'sea' component in the solvent capable of removing 'sea' component from sea-island fibre to obtain semifinished product, widening forming, mellowing, dyeing, grinding or sticking film so as to obtain the invented product.

Description

Technical field: [0001] The invention relates to simulated composite leather and a manufacturing method thereof, in particular to a high-strength superfine fiber simulated composite leather containing a composite layer and a manufacturing method thereof. Background technique: [0002] As a substitute for natural leather—synthetic leather is gradually recognized by consumers due to its good appearance consistency, maintenance-free, and easy cutting, but its development is affected by its poor air permeability and moisture permeability. In recent years, due to the invention of sea-island superfine fibers, and the fiber fineness of sea-island superfine fibers is below 0.01 denier, the synthetic leather made of sea-island superfine fiber non-woven fabrics resembles natural leather. Soft and smooth, beautiful surface, air permeability, moisture permeability, strength, and service life are almost comparable to natural leather, especially bright colors, uniform texture, anti-moth, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06N3/14
Inventor 孙俊成姚忠山
Owner SHANDONG TONGDA ISLAND NEW MATERIALS
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