Preparing method of chemical leather for lining of superfine fiber water absorption breathable shoes

Abstract

The invention relates to a preparing method of chemical leather for linings of a pair of superfine fiber water absorption breathable shoes; the method is realized by the following steps: 1. superfine fiber is adopted to make chemical leather; 2. the prepared treatment fluid is poured into a square groove provided with a sink roll; wherein, the mixture ratio (Kg) of the treatment fluid is 100Kg of demineralized water and 2-15Kg of aqueous solution of water modified silicon polymer; 3. liquid carrying rate is controlled to be 50-120% of the weight of base cloth; and the drying temperature is 60-150 DEG C; 4. dry process surface manufacturing treatment is carried out; wet end furnish (Kg) is 100 Kg of solvent type urethane resin, 2-10 Kg of hollow wood fiber, 2-20 Kg of colored powder and 5-40 Kg of ethyl methyl ketone; 5. release paper B-100 is adopted; 6. a first impasto palette knife distance is 120-300mum, and the drying temperature is 60-150 DEG C; 7. a second impasto palette knife distance is 80-250mum, and the drying temperature is 60-150 DEG C; 8. the gluing way is wet combining, the gluing pressure is 3-6 Kg, and the vehicle speed is 2-10m / min; a sample is obtained by directly and quickly stripping after drying; the obtained products have good simulation property, hand feeling and breathability.

Description

technical field [0001] The invention relates to a preparation method of synthetic leather, in particular to a preparation method of superfine fiber water-absorbing, moisture-permeable and breathable shoe lining synthetic leather. Background technique [0002] Ordinary leather shoe lining leather is produced by using knitted fabric to prepare ordinary leather base fabric by wet method, and then carry out surface finishing. There are mainly methods such as dry surface or embossing and dry surface embossing. Ordinary leather shoe linings use knitted fabric as the base fabric, which cannot be compared with microfiber synthetic leather in terms of natural imitation. At the same time, it has disadvantages such as low physical properties, poor hand feeling, uncomfortable wearing, poor water absorption and air permeability, and belongs to low-grade. The second shoe is lined with leather. [0003] The most widely used and highest-grade leather in the market is the natural shoe linin...

AI Technical Summary

Problems solved by technology

Natural shoe lining leather is prone to mildew, rot and even odor during wearing and use. At the same time, after wearing for a period of time, its physical and mechanical properties will drop sharply, such as easy wear, perforation, shedding, deformation, low tear strength, etc.

The shape of natural leather is different, there are many defects, it is very inconvenient to cut, and the yield rate is small, which makes the unit cost high during use

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