Thin coated PU leather products are mainly used for PU coating of outdoor clothing and packaging fabrics, and there are also, for example; Imitation leather (artificial leather), sanded suede and other products are also PU coated products. Polyurethane PU coating can form a variety of multifunctional and high value-added textile products, which are widely used in clothing, decoration, military industry and other industries.
PU coatings can be divided into waterborne polyurethane and solvent-based polyurethane according to their coating forms. Solvent-based coatings have good film-forming performance, strong adhesion to fabrics and high water pressure resistance, and are more suitable for waterproof and moisture permeable coatings.
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Product characteristics
Coating processing technology includes dry method, wet method, hot melt method, transfer method, adhesion method and so on. Among them, dry method is the most widely used. Dry method is to evenly coat the coating slurry on the base fabric with a coating machine. After heating, the solvent or water volatilizes and the coating forms a film on the fabric surface. PU thin coating is a high-grade product in dry direct coating, which is mainly used for clothing fabrics.
Its advantages are waterproof, dustproof and low adsorption. The disadvantage is that it is airtight and its effective service life is short (this is also the reason why many general waterproof clothes have reduced or even no waterproof effect after a period of time).