A kind of PVC calendered foam artificial leather and preparation method thereof

Abstract

The invention discloses a PVC calendered foamed artificial leather, which comprises a cloth base material, a bubble layer and a surface layer from the inside to the outside, the cloth base material, the bubble layer and the surface layer are bonded together, and kneaded after foaming The PVC calendered foamed artificial leather is obtained by grain processing; the kneading process adopts hot oil heat exchange method to generate hot air to make the temperature in the drum reach 60-85°C, and at the same time, the kneading drum rotates forward and backward to make the semi-finished product flip up and down irregularly ; After high-temperature kneading, the cooling air is blown through the active air exhaust method to cool and shape. Correspondingly, the invention also discloses a preparation method of PVC calendered foamed artificial leather. By adopting the invention, the product has the characteristics of good hand feeling softness and strong three-dimensional texture, and high simulation degree.

Description

technical field [0001] The invention relates to the field of leather manufacturing, in particular to a PVC calendered foamed artificial leather. Background technique [0002] With the rapid development of the automobile industry and the furniture industry, the demand for artificial leather and synthetic leather is increasing rapidly. Due to the softness of the handle and the strong three-dimensional texture of the PU synthetic leather, it is widely used in sofa furniture and automobiles. on the interior. In the synthetic leather industry, a large part of PU synthetic leather is processed by wet kneading process, but with the hydrolysis of PU synthetic leather, the product price is relatively expensive and technical problems such as the inability to produce coarse grain products have appeared. Since 2005 The production of domestic PU synthetic leather has a certain degree of decline every year. [0003] On the contrary, due to the characteristics of the base material and th...

AI Technical Summary

Problems solved by technology

In the synthetic leather industry, a large part of PU synthetic leather is processed by wet kneading process, but with the hydrolysis of PU synthetic leather, the product price is relatively expensive and technical problems such as the inability to produce coarse grain products have appeared. Since 2005 The production of domestic PU synthetic leather has a certain decline every year

[0003] On the contrary, due to the characteristics of the base material and the limitation of the preparation method, compared with the PU synthetic leather, the PVC artificial leather produced by it lacks the fineness and three-dimensionality of the texture, and the softness of the hand is not enough to achieve simulation. The effect of genuine leather hinders the entry of PVC artificial leather into sofa furniture, car interiors and other markets that require high imitation artificial leather

Those skilled in the art know that high-oil PVC calendered foamed artificial leather has better softness than products with lower oils, but there are the following technical problems that need to be solved: (1) even high-oil PVC calendered foamed artificial leather products and Compared with PU synthetic leather, the softness is not enough; (2) Compared with PU synthetic leather, PVC calendered foamed artificial leather products with high oil content are not fine enough in surface texture and the three-dimensional effect of pattern is not strong