Artificial leather suitable for low-pressure injection molding and preparation method thereof

Abstract

The invention discloses an artificial leather suitable for low-pressure injection molding and a preparation method thereof, which belong to the technical field of leathers. The artificial leather comprises a base fabric layer, a bonding layer, a foaming layer, a compact layer and a surface treatment layer, wherein the base fabric layer is prepared by adopting weft knitting double jersey; the thickness of the compact layer is larger than the thickness of the surface treatment layer, and accounts for 41 percent to 50 percent of the thickness of the whole artificial leather; in raw materials of the compact layer, the dosage of a plasticizer accounts for 35.7 percent to 40.2 percent of the sum of the raw materials; in raw materials of the foaming layer, the dosage of the plasticizer accounts for 35.9 percent to 42.7 percent of the sum of the raw materials. The artificial leather provided by the invention solves the problems of folds, short mold, reduction printing, shiny sharp corners andsharp corner bursting of an existing artificial leather occurred during a low-pressure injection molding process of high-complexity workpieces.

Description

technical field [0001] The invention relates to the technical field of leather, in particular to leather suitable for low-pressure injection molding and a preparation method thereof. Background technique [0002] Artificial leather is a plastic product that looks and feels like leather and can be used instead of it. It is usually made of fabric as a base, coated with synthetic resin and various plastics. It mainly includes PVC artificial leather, polyurethane artificial leather and polyurethane synthetic leather. Three categories. At present, the most commonly used artificial leather in the market is polyvinyl chloride artificial leather. However, with the continuous progress of the automobile industry, its requirements for the required polyvinyl chloride artificial leather are also getting higher and higher, and the polyvinyl chloride artificial leather sold on the market can no longer meet the needs of the development of the automobile industry. For example, the existing...