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Non-woven fabric used for synthetic leather and artificial leather and production method thereof

A non-woven, artificial leather technology, applied in the direction of conjugated synthetic polymer rayon, non-woven fabrics, textiles and papermaking, etc. Material feel, soft feel, superior elasticity effect

Inactive Publication Date: 2010-03-17
浙江航天无纺布有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although conventional non-woven synthetic and artificial leathers exhibit rigidity and ductility similar to natural grain leather, the non-woven fabrics used in the preparation of such synthetic and artificial leathers have materials and structures that still reach the Less than ideal effect

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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  • Non-woven fabric used for synthetic leather and artificial leather and production method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The production process of non-woven fabrics generally includes three processes: needle punching, impregnation and shaping.

[0024] 1. Acupuncture

[0025] The specific process is: feeding-opening-mixing-carding-laying-needling

[0026] Feeding: According to the ratio shown in Table 1, accurately weigh, so that the ratio of each raw material is strictly in accordance with the process requirements, feed at a fixed weight, and transport forward longitudinally at the same time. In this embodiment, the weight percentage of polyamide fiber (PA) is 50%, the weight percentage of bicomponent elastic fiber (ISCRA-S) is 30%, and the weight percentage of high shrinkage polyester fiber (HS) is 20%. The two-component elastic fiber is obtained by mixing polyethylene terephthalate (PET) and polytrimethylene terephthalate (PTT) after spinning and cutting, wherein the mass fraction of PTT is 40%. The fineness of PA is 2.5 denier, the fineness of ISCRA-S is 2.5 denier, and the fineness...

Embodiment 2

[0036] In this embodiment, as shown in Table 1, the percentage by weight of polyamide fiber (PA) is 50%, the percentage by weight of bicomponent elastic fiber (ISCRA-S) is 30%, and the percentage by weight of high shrinkage polyester fiber (HS) is The weight percentage is 20%. The mass fraction of PTT in ISCRA-S is 50%. The fineness of PA is 3.0 denier, the fineness of ISCRA-S is 2.2 denier, and the fineness of HS is 2.0 denier. The semi-finished product after needling is impregnated with polyvinyl alcohol (PVA) solution at 50°C. Other technological process is the same as embodiment 1, repeats no more.

Embodiment 3

[0038] In this embodiment, as shown in Table 1, the weight percentage of polyamide fiber (PA) is 60%, the weight percentage of polyester fiber (PET) is 10%, and the weight percentage of two-component elastic fiber (ISCRA-S) is The percentage is 10%, and the weight percentage of high shrinkage polyester fiber (HS) is 20%. The mass fraction of PTT in ISCRA-S is 60%. The fineness of PA is 2.0 denier, the fineness of ISCRA-S is 2.8 denier, the fineness of HS is 1.4 denier, and the fineness of PET is 2.5 denier. The semi-finished product after needling is impregnated with polyvinyl alcohol (PVA) solution at 70°C. Other technological process is the same as embodiment 1, repeats no more.

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Abstract

The invention relates to a non-woven fabric used for synthetic leather and artificial leather, and a production method thereof. The method comprises the following steps of mixing dual-component elastic fiber (ISCAR-S) and synthetic fiber to produce a non-woven fabric semi-finished product; dipping the non-woven fabric semi-finished product in a polyvinyl alcohol solution at the temperature of 50-80 DEG C; the dual-component elastic fiber (ISCRA-S) is formed by mixing, silking and cutting off polyethylene terephthalate (PET) and Poly(trimethylene terephthalate) (PTT); the dual-component elasticfiber (ISCRA-S) accounts for 5-70% of the total weight of the non-woven fabric semi-finished product; the fineness of the synthetic fiber is 3 Deniers or smaller; and the fineness of the dual-component elastic fiber is 2.0-3.0 Deniers. In the invention, the prepared non-woven fabric is taken as basic fabric so as to obtain the non-woven synthetic leather and artificial leather that have excellentelasticity and soft hand-feeling.

Description

technical field [0001] The invention relates to a non-woven fabric and a production method thereof, in particular to a non-woven fabric for synthetic leather and artificial leather and a production method thereof. Background technique [0002] In general, synthetic and artificial leather have properties similar to natural grain leather. Because synthetic leather and artificial leather have superior properties and characteristics that natural leather cannot match, they are often used as substitute materials for natural grain leather. At present, synthetic leather and artificial leather are produced by impregnating or coating with polyurethane (PU), generally using fabrics, non-woven fabrics, etc. characteristics. Although conventional non-woven synthetic and artificial leathers exhibit rigidity and ductility similar to natural grain leather, the non-woven fabrics used in the preparation of such synthetic and artificial leathers have materials and structures that still reach...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/46D01F8/14D06M15/333D06C7/02D04H1/4382
Inventor 皇甫明灿
Owner 浙江航天无纺布有限公司