Regenerated cowhide fiber synthetic leather and preparation method thereof
A technology of cowhide fiber and synthetic leather, applied in the field of synthetic leather, can solve the problems of inferior leather shoes and the inability to effectively use genuine leather scraps, etc., and achieve the effect of simple operation
Inactive Publication Date: 2018-07-24
浙江思凯域新材料有限公司
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Problems solved by technology
[0003] At the same time, in the leather industry, the inability to effectively use genuine leather scraps has always been a pain point in the industry. At present, genuine leather scraps can only be used as industrial gelatin or very little edible gelatin, and low-quality leather shoes, etc.
Method used
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[0013] The technical solution of the present invention is described in detail below. The embodiment of the present invention is only for illustrating a specific structure, and the scale of the structure is not limited by the embodiment.
[0014] Such as figure 1 As shown, the present invention provides a method for preparing regenerated kraft fiber synthetic leather, select leather scraps and non-woven fabrics as raw materials, firstly, the leather scraps are broken into small pieces 1, screened 2, cleaned 3, block 4, physical and chemical treatment 5, combing 6. Fiber drawing 7, bagging 8, opening 9, metering 10, web forming 11, while the leather leftovers are forming a web, non-woven fabric forming 12 is also carried out at the same time, and then high-pressure spunlace interweaving 13, drying 14, Winding 15, slitting 16, packaging 17; leather leftovers into a net, 200-300 g / m2; non-woven fabric into a net, 50-100 g / m2; high-pressure spunlace interweaving, followed by the f...
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Abstract
The invention discloses regenerated cowhide fiber synthetic leather and a preparation method thereof. The preparation method includes: selecting and using leather leftovers and nonwoven cloth as raw materials; subjecting the leather leftovers sequentially to smashing into pieces, screening, cleaning, beating the pieces, physiochemically treating, carding, pulling fiber, bagging, opening, metering,and netting; netting the nonwoven cloth while the leather leftovers are netted; performing high-pressure spunlace interweaving, drying, winding, slitting, and packaging. Full-automatic production isrealized, so that labor cost is reduced, production efficiency is improved, and energy-saving and efficiency-improving effects are realized; performance indexes of produced regenerated cowhide fiber include that thickness is 0.4-1.0mm, longitudinal breaking strength is greater than or equal to 600-650N, transverse breaking strength is greater than or equal to 600-670N, longitudinal tearing strength is greater than or equal to 55-85N, transverse tearing strength is 50-70N, transverse elongation at break is 55-75%, and longitudinal elongation at break is 30-70%.
Description
technical field [0001] The invention relates to synthetic leather, in particular to regenerated kraft fiber synthetic leather and a preparation method thereof. Background technique [0002] my country is a big country of tanning industry, and the leather industry is also facing severe constraints of resources and ecological environment. The solid waste generated by my country's traditional tanning industry accounts for about 30%, resulting in a large loss of animal resources. The loss of resources has also caused environmental damage, which has become one of the problems that must be solved for the sustainable development of the leather industry. If you want to make real leather, you must kill animals. [0003] At the same time, in the leather industry, the inability to effectively use genuine leather scraps has always been a pain point in the industry. At present, genuine leather scraps can only be used as industrial gelatin or very little edible gelatin, and low-quality l...
Claims
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IPC IPC(8): D04H1/4374D04H1/492D04H1/4266
CPCD04H1/4266D04H1/4374D04H1/492
Inventor 周天宇杨中频周王松
Owner 浙江思凯域新材料有限公司