Patent ID: 8821660
Filing Date: 2014-09-02
Classification: B05C,D06N

Abstract:
1. A method for manufacturing artificial leather comprising the steps of: utilizing a conveyor to convey a release paper having predesigned grains along a predesigned direction, utilizing a spray coating device to spray coat the release paper with a water based finishing material, drying the spray coated release paper in a drying device to form an incompletely solidified surface layer on the release paper, spray coating the incompletely solidified surface layer with reactive solvent-free multicomponent polymers to form a foaming layer on the surface layer using a multicomponent spray reaction injection molding (RIM) device and special spray guns which perform mixing, spraying and cleaning at the same time in a closed spray chamber system, delivering a substrate layer by a conveyor, pressing the substrate layer, the foaming layer in which foaming and coagulating of the multicomponent polymers are still occurring, and the incompletely solidified surface layer to bond them together as a laminate by using a roller, heating the laminate to completely solidify the substrate, foaming layer and surface layer together as an integral laminate, cooling the laminate after heating, and stripping the release paper from the surface layer to form the artificial leather.