Manufac turing method of synthetic leather include steam process using waterborne polyurethane

摘要

The present invention relates to a method of manufacturing artificial leather using a water-dispersed polyurethane including a steam process, the object of which is to optimize the composition of the inorganic salt to solve the instability of the impregnating solution and at the same time the impregnated fabric through the impregnation steam steam and steam By adding a process to pass through the box by spraying steam, even if the water-dispersed polyurethane enters the coagulation bath, the resin does not come out, thereby providing a process method in which a solid feeling of filling and softness is expressed. The configuration of the present invention comprises the steps of preparing a synthetic leather production process by using a conventional oil-based process of the water-based polyurethane wet method process, preparing a woven fabric, a high-density nonwoven fabric, a microfiber nonwoven fabric is a commercially supported substrate; An impregnation step of dipping the nonwoven fabric in the impregnation tank containing the impregnation solution added with the preparation; Passing the water-dispersible polyurethane resin through the impregnation step through a steam mangle; Undergoing a steam spraying process such as a steam box so that surface solidification occurs due to steam injection to prevent particle diffusion in the solidification tank; A solidification tank step of solidifying after passing through the steam box; An existing mangle step of adjusting the impregnation amount of the impregnation gun; Drying the impregnated fabric in a dryer; It is characterized by a method of making artificial leather by constructing a complete impregnation step.