Cold-resistant wear-resistant synthetic leather, preparation method and equipment

Abstract

The invention discloses cold-resistant wear-resistant synthetic leather, which comprises a coating liquid; the coating liquid is prepared from, by weight, 60% of waterborne polyurethane, 13% of lightcalcium, and 3-7% of a foaming agent, 7% of a foam stabilizer, 1% of graphene, 0.5-10% of aqueous color paste, 0.5-10% of a leveling agent, 0.5-10% of a thickener and 1-3 % of a cold resistant. The invention also discloses preparation equipment of the cold-resistant wear-resistant synthetic leather, which comprises a stirrer body; a stirring shaft is arranged on the stirrer body, stirring rods arefixedly arranged on the outer surface of the lower end of the stirring shaft, a filter plate is movably arranged in the stirrer body, and limiting grooves are formed in the positions, close to two sides, of the inner wall of the stirrer body. The synthetic leather disclosed by the invention has the advantages that the air permeability of the synthetic leather is very good, the synthetic leather is fuller, smoother and softer to touch, the antistatic, flame-retardant and waterproof special effects are endowed to the synthetic leather, the moisture-permeable and air-permeable performances are good, and the synthetic is soft to touch and has the style and appearance similar to those of natural leather.

Description

technical field [0001] The invention relates to the technical field of cold-resistant and wear-resistant synthetic leather, in particular to a cold-resistant and wear-resistant synthetic leather, a preparation method and equipment. Background technique [0002] Synthetic leather is a substitute material for leather. With the improvement of people's living standards, people gradually pursue high-quality daily products, and the demand for leather products is increasing. With the enhancement of animal protection awareness, animal leather can no longer meet People's needs, synthetic leather products have gradually become the future development trend. Manufacturers basically use traditional solvent-based polyurethane resins to manufacture synthetic leather. Most of the solvents used as resin dispersion media are toxic and harmful dimethylformamide, toluene, acetone, Organic solvents such as butanone, whose content in the resin is as high as 70%-80%. [0003] There are two types ...

AI Technical Summary

Problems solved by technology

[0003] There are two types of synthetic leather currently on the market: oily and water-based. Oil-based synthetic leather is being phased out due to the use of a large amount of solvents. There is also a so-called water-based synthetic leather production process that uses water-based polyurethane first on the leather base cloth. Coating, and then solidify and solidify in water containing calcium chloride, because a certain amount of gas will be generated during the solidification process, which will relatively improve the feel of bass, but the effect is not very obvious. Currently, oily The production process of water-based synthetic leather is generally post-processing after Bass film, mainly because the wear fastness of Bass is not enough, and the wear fastness of the surface can only be increased by filming, but synthetic leather will affect the feel after filming, and The cost will also increase significantly, and the water-based foam bass has poor moisture permeability and air permeability after being filmed, which will also affect its style and appearance

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