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A kind of high-performance tpu superfine fiber synthetic leather and its clean production method

A superfine fiber, clean production technology, applied in the direction of fiber type, fiber treatment, textile and papermaking, etc., can solve the problems of poor surface feel and simulation, insufficient product softness, and poor feel plumpness, etc., to achieve mechanical properties and use. Good performance, good pattern simulation, soft feel

Active Publication Date: 2019-10-29
JIANGSU KEMEI NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, compared with natural leather, suede microfiber synthetic leather products still have the following disadvantages: (1) The surface making process usually uses solvent-based polyurethane release paper transfer coating method, which will use a large amount of solvents and cause environmental pollution (2) The softness of the product is insufficient, and the fullness of the handle is poor; (3) The water and gas permeability of the product is small, resulting in poor hygienic performance; (4) The feel and simulation of the product surface are poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030](1) Shrinkage of the base cloth: impregnate the superfine fiber synthetic leather base cloth through an impregnation tank equipped with a 30°C shrinkage liquid, and control the impregnation amount of the shrinkage liquid by rollers to be 80% of the quality of the ultrafine fiber synthetic leather base cloth , and then enter the continuous kneading machine, under the condition of 55 ℃, the superfine fiber synthetic leather base cloth is completely dried, and the shrinking kneading process is completed to obtain the shrinking kneading base cloth.

[0031] Wherein, the superfine fiber synthetic leather base cloth is island-fixed superfine fiber synthetic leather base cloth.

[0032] The shrinkage liquid is prepared by the following method: in parts by mass, 5 parts of bayberry extract, 1 part of rubber extract, 0.3 part of sodium citrate, 2 parts of sulfated castor oil, 0.5 part of sulfated fish oil and water Mix 70 parts and stir until all the materials are dissolved to ob...

Embodiment 2

[0037] (1) Shrinkage of the base cloth: impregnate the superfine fiber synthetic leather base cloth through an impregnation tank equipped with a 30°C shrinkage liquid, and control the impregnation amount of the shrinkage liquid by rollers to be 90% of the quality of the ultrafine fiber synthetic leather base cloth , and then enter the continuous kneading machine, under the condition of 60 ℃, the superfine fiber synthetic leather base cloth is completely dried, and the shrinking kneading process is completed, and the shrinking kneading base cloth is obtained.

[0038] Wherein, the ultrafine fiber synthetic leather base cloth is non-fixed island type ultrafine fiber synthetic leather base cloth.

[0039] The shrinkage solution is prepared by the following method: in parts by mass, 6 parts of bayberry extract, 2 parts of rubber extract, 0.2 part of sodium citrate, 3 parts of sulfated castor oil, 1 part of sulfated fish oil and water Mix 100 parts and stir until all the materials ...

Embodiment 3

[0044] (1) Shrinkage of the base cloth: impregnate the superfine fiber synthetic leather base cloth through an impregnation tank equipped with a 32°C shrinkage liquid, and control the impregnation amount of the shrinkage liquid by rollers to be 85% of the quality of the ultrafine fiber synthetic leather base cloth , and then enter the continuous kneading machine, under the condition of 65 ℃, make the superfine fiber synthetic leather base cloth dry thoroughly, complete the shrinking kneading process, and obtain the shrinking kneading base cloth.

[0045] Wherein, the superfine fiber synthetic leather base cloth is a pie-shaped superfine fiber synthetic leather base cloth.

[0046] The shrinkage solution is prepared by the following method: in parts by mass, 8 parts of bayberry extract, 1.5 parts of rubber bowl extract, 0.1 part of sodium citrate, 2.5 parts of sulfated castor oil, 0.7 part of sulfated fish oil and water Mix 80 parts and stir until all the materials are dissolve...

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Abstract

The invention provides high performance TPU superfine fiber synthetic leather and a cleaner production method thereof. The method comprises the following steps: a piece of superfine fiber synthetic leather base cloth is dipped by a dipping tank which contains shrinking and boarding liquid, the synthetic leather base cloth enters a continuous type boarding machine, and a piece of boarding base cloth is obtained; a calendering production line is used, calendering materials are thrown into a high speed kneader for mixing, after mixing, plastication and calendering of the materials, the materials and a piece of release paper are laminated, in order to obtain a release paper laminated TPU film; a synthetic leather dry method production line with a piece of PUR scraping equipment is used, PUR is scraped on the release paper laminated TPU film, the boarding base cloth is attached, the release paper is peeled, and the product is obtained. Shrinking and boarding technology is used, in order to greatly improve flexibility, permeability and moisture permeability of the superfine fiber synthetic leather base cloth; the scraping and lamination technology of release paper transferred coating and reaction type polyurethane hot melt adhesive is used, the thermoplastic polyurethane calendering film is laminated on the superfine fiber synthetic leather base material in order to obtain the TPU superfine fiber synthetic leather with soft hand feeling, mechanical properties and good usage performance.

Description

technical field [0001] The invention relates to the technical field of ultrafine fiber synthetic leather, in particular to a high-performance TPU ultrafine fiber synthetic leather and a clean production method thereof. Background technique [0002] Due to the limited resources of raw leather used to produce natural leather, and the production of natural leather is a process of high energy consumption and high pollution, it will bring a huge pollution load to the environment. In recent years, developed countries such as the European Union have also proposed new standards for the safety of natural leather itself, strictly restricting the presence of toxic chemicals such as Cr(VI), azo dyes, pentachlorophenol (PCP) and free formaldehyde in natural leather. . From the perspective of raw leather resources, environmental protection, product safety and market, the production and use of natural leather are facing great challenges. [0003] For the above reasons, countries all over...

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 Patents(China)
IPC IPC(8): D06N3/00D06M15/01D06M13/207D06M13/262D06M101/38
CPCD06M13/207D06M13/262D06M15/01D06M2101/38D06N3/0004D06N3/0077D06N3/0097
Inventor 陆毅马兴元严荣华
Owner JIANGSU KEMEI NEW MATERIALS
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