Preparation method of silk leather
A production method and leather technology, applied in the field of leather application, can solve the problems of poor tear strength and fastness, not as safe and hygienic as cotton, and comfortable and healthy feeling, etc., and achieve the effect of a simple production method.
Inactive Publication Date: 2015-09-30
刘从荡
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Problems solved by technology
Although the current leather products are various and have their own advantages, they also have disadvantages. For example, the thickness of ultra-thin leather is below 0.2-0.3mm, and its physical tear strength and fastness are also due to its thickness. Thinner and worse, like making leather into underwear, it is not as safe, hygienic, comfortable and healthy as cotton and silk when worn on the body
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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Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0011] Coat the polyamide hot melt adhesive with gravure screen printing, and print it on the silk surface in dot distribution, the dot diameter is 0.3mm, and the dot spacing is 0.5mm, and the silk surface with glue dots is covered on the sheepskin , at a temperature of 80°C and a pressure of 0.2kg / cm 2 , time 0.5 seconds overpressure on the roller press, the polyamide hot melt adhesive is assimilated after overpressure.
[0012] If the inhomogeneous dot gravure of polyurethane viscose resin is used to coat cowhide and cotton cloth, the overpressure temperature can reach 100°C and the pressure is 0.5kg / cm 2 , the time can reach 2 seconds, the point diameter of the bonding point can reach 0.5 mm, and the distance between points can reach 0.8 mm.
[0013] If it is a copolymer of 70% methacrylamide and 30% ammonium methacrylate, it is formulated into a glue solution containing 20% water, and the pigskin and synthetic fiber fabrics are coated and compounded with uniform dot gra...
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Abstract
The invention discloses a preparation method of silk leather. The preparation method is characterized in that the silk leather is subjected to physical compound treatment by adopting a silk fabric and genuine leather. The compound treatment is characterized in that the silk fabric is flatly arranged on the leather surface in a mode of dot type adhesion; the dot type is characterized in that adhesion dots which are distributed on the whole compound surface in a dot-shaped mode for adhesion; the physical compound treatment refers to screen printing coating by a concave plate; adhesive resin or hot melt resin is printed on the fabric, and is then flatly arranged on the leather surface; hot roll compression or panel pressing is adopted; then excessive-pressure treatment is carried out at the temperature of 70-100 DEG C with the pressure not less than 0.2kg / cm<2> for 0.5-2 seconds. The preparation method of silk leather according to claim 1 has the characteristic that dot type adhesion points are uniformly distributed dots, or non-uniformly distributed dots.
Description
technical field [0001] The invention relates to the aspect of leather application technology. Background technique [0002] The use of leather has a long history. From the early human animal skins to keep out the cold, the research on leather has been step by step to meet the needs of society, and the manufacturing process has become more and more refined. For example, goat, sheep, cowhide, and pigskin are split into several layers after dry splitting, which not only improves the utilization rate of the leather, but also provides a basic material guarantee for the light, thin, and soft leather body. In the process of leather processing, low alkali expansion, low-concentration enzyme softening at room temperature, treatment with non-polluting stabilizers, washing with detergents, leather fatliquoring and padding, and processes such as set grinding, breaking softening, and stretching boards have been adopted. The product reaches ultra-thin, light and soft, high-grade leather ...
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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IPC IPC(8): B32B9/02B32B7/12
Inventor 刘从荡
Owner 刘从荡