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Preparation method of high-cotton-feeling micro-fiber sofa leather base

A technology of sofa leather bass and microfiber, which is applied in the direction of fiber type, fiber treatment, and conjugated synthetic polymer artificial filament, etc., which can solve the problems of reducing the use time of recycling equipment, easy collapse of cells, and high cost, so as to improve recycling Value, improve product quality, improve the effect of grade

Active Publication Date: 2019-03-29
重庆双象超纤材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the past, in order to achieve this purpose, low-modulus polyurethane resins were generally used. Because the superfiber in the present invention adopts the toluene fiber opening process, the low-modulus polyurethane resin has a large corrosion rate and the cells are easy to collapse during the process of toluene fiber opening. etc., the softness of the prepared microfiber synthetic leather is relatively good, but it has the disadvantages of poor myogenesis, weak fleshy feeling, thick creases, etc., which reduces the economic benefits and makes its cost high. The corrosion rate is high, and a large amount of polyurethane components enter the crude toluene, which leads to easy blockage of pipes and evaporators during the toluene recovery process. At the same time, the purity of waste polyethylene particles is greatly reduced, which reduces the recovery value of waste polyethylene and reduces the cost of recycling equipment. usage time

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Preparation method of high-cotton-feeling micro-fiber sofa leather base
  • Preparation method of high-cotton-feeling micro-fiber sofa leather base

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A preparation method of high-cotton feeling microfiber sofa leather bass, comprising the following steps:

[0024] (1) Preparation of "sea-island" type composite fiber: Nylon 6 (PA6) and linear low-density polyethylene (LDPE), according to the ratio of PA6: LDPE = 50: 50, obtained through the mixed melt extrusion method The linear density is 6dtex, "island in the sea" type composite staple fiber with a length of 51mm, in which PA6 is the "island" and LDPE is the "sea";

[0025] (2) The preparation of microfiber nonwoven fabric: adopt the composite staple fiber in the step (1), through operations such as opening, carding, laying a net, acupuncture, obtain the grammage and be 450g / m 2 of non-woven fabrics;

[0026] (3) Ironing and setting: heat the non-woven fabric in step (2) at 155°C for 3 minutes, the LDPE will be softened, and then passed through a pressing roller to make a density of 0.28g / cm 3 of non-woven fabrics;

[0027] (4) Impregnation: prepare an impregnati...

Embodiment 2

[0035] A preparation method of high-cotton feeling microfiber sofa leather bass, comprising the following steps:

[0036] (1) Preparation of "sea-island" type composite fiber: Nylon 6 (PA6) and linear low-density polyethylene (LDPE), according to the ratio of PA6: LDPE = 53: 47, obtained through the mixed melt extrusion method The linear density is 6.0dtex, "sea island" type composite staple fiber with a length of 51mm, in which PA6 is used as the "island" and LDPE is used as the "sea";

[0037] (2) The preparation of microfiber nonwoven fabric: adopt the composite staple fiber in the step (1), through operations such as opening, carding, laying a net, acupuncture, obtain the grammage and be 450g / m 2 of non-woven fabrics;

[0038] (3) Ironing and setting: heat the non-woven fabric in step (2) at 155°C for 3 minutes, the LDPE will be softened, and then passed through a pressing roller to make a density of 0.28g / cm 3 of non-woven fabrics;

[0039] (4) Impregnation: prepare an...

Embodiment 3

[0047] A preparation method of high-cotton feeling microfiber sofa leather bass, comprising the following steps:

[0048](1) Preparation of "sea-island" type composite fiber: Nylon 6 (PA6) and linear low-density polyethylene (LDPE), according to the ratio of PA6: LDPE = 50: 50, obtained through the mixed melt extrusion method The linear density is 5.5dtex, "sea island" type composite staple fiber with a length of 51mm, in which PA6 is used as the "island" and LDPE is used as the "sea";

[0049] (2) The preparation of microfiber nonwoven fabric: adopt the composite staple fiber in the step (1), through operations such as opening, carding, laying a net, acupuncture, obtain the grammage and be 450g / m 2 of non-woven fabrics;

[0050] (3) Ironing and setting: heat the non-woven fabric in step (2) at 155°C for 3 minutes, the LDPE will be softened, and then passed through a pressing roller to make a density of 0.28g / cm 3 of non-woven fabrics;

[0051] (4) Impregnation: prepare an ...

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Abstract

The invention belongs to the technical field of preparation of superfine fiber synthetic leather, and particularly relates to a preparation method of a micro-fiber sofa leather base. The preparation method of the micro-fiber sofa leather base comprises the following treatment steps: spinning, making of a non-woven fabric, shaping of the non-woven fabric, wet-process impregnation, extraction, drying and oiling, leather rubbing and aftertreatment. In the preparation method of the invention, novel polyurethane is used for carrying out wet-process impregnation on a micro-fiber nonwoven fabric, incooperation with a reasonable micro-fiber production process, the prepared micro-fiber base has the characteristics of plumpness, fine and smooth folding marks and the like, the grade of the micro-fiber sofa leather can be improved, the micro-fiber sofa leather can rival buttermilk skin and goat skin, consumption of raw materials is greatly reduced, the recycling value of waste polyethylene is increased, the quality of the product is increased, and the economy is high.

Description

technical field [0001] The invention belongs to the technical field of preparation of bundled superfine fiber synthetic leather, and in particular relates to a preparation method of a high-cotton feeling superfiber sofa leather bass. Background technique [0002] Microfiber synthetic leather (microfiber leather for short) is a high-grade artificial leather developed on the basis of fully analyzing natural leather. It is made of bundled microfiber and polyurethane through special processing, with nylon 6 microfiber as the three-dimensional "skeleton", polyurethane as the "meat", tightly wrapped in the "skeleton" structure, showing an irregular sponge structure . The microstructure of Bass is similar to the collagen fibers of natural leather, and it also has similar organizational structure and physical and chemical properties to natural leather. Microfiber leather has almost all the characteristics and advantages of natural leather, and is superior to natural leather in ter...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/564D06M11/76D01F8/12D01F8/06D04H1/4382D06M101/34D06M101/20
CPCD01F8/06D01F8/12D04H1/4382D06M11/76D06M15/564D06M2101/20D06M2101/34
Inventor 邬花元刘安秦尉雷邹杰
Owner 重庆双象超纤材料有限公司
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