Making method of high-color fastness dye-free ultrafine fiber synthetic leather base

A superfine fiber, high color fastness technology, applied in the direction of fiber type, fiber treatment, textile and papermaking, etc., can solve the problem of poor color fastness of synthetic leather bass, reduce dye dosage, reduce dye content, reduce VOC The effect of content
CN106917298AActive Publication Date: 2017-07-04山东济清科技服务有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
山东济清科技服务有限公司
Publication Date
2017-07-04

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Abstract

The invention relates to a making method of a high-color fastness dye-free ultrafine fiber synthetic leather base. The making method comprises the following steps: base cloth decrement, impregnation in colored aqueous polyurethane, polyurethane solidification and post-treatment. The ultrafine fiber synthetic leather base made in the invention has the advantages of full color, high color fastness and no dyeing. The making method of the ultrafine fiber synthetic leather base has the advantages of small dye use amount in the making process, high dye utilization rate, and no use of toluene, dimethyl formamide or other organic solvents, and is environmentally friendly.
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Description

technical field

[0001] The invention relates to a preparation method of high color fastness dyeing-free superfine fiber synthetic leather base, which belongs to the technical field of synthetic leather production. Background technique

[0002] In recent years, microfiber-polyurethane synthetic leather (MPSL) has developed rapidly and is widely used in sporting goods, household, automotive supplies and other fields. The high-density "sea-island" microfiber endows MPSL with excellent physical and mechanical strength, and the polyurethane with open microporous structure endows MPSL with a leather-like texture, making it an excellent substitute for natural leather; at the same time, MPSL is highly The quality uniformity and higher utilization rate make it a strong competitor to natural leather.

[0003] However, the structural characteristics of ultra-fine fibers have caused technical difficulties in dyeing MPSL. On the one hand, its too small fineness leads to fast dye adsorp...

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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