Recently, many customers have asked Xiaowei about how to choose the coloring materials for leather clothing during the leather care process. Today, we will introduce the types of materials commonly used in the leather clothing coloring process, hoping to be helpful to everyone. There are many types of leather clothing coloring materials with different properties, mainly including fillers, sealants, colorants, and additives (patching agent, matting agent, penetrant, softener, etc.), film-forming agent, brightener and feel agent (smoothing agent and wax lotion, etc.). 1. Filler is a kind of ultra-fine lotion, which is mainly used to overcome the problems of loose surface and peeling of leather coat, improve its fullness and softness, and form a slight cross link with leather fiber when forming film on leather surface, thus increasing the adhesion between film and leather. 2. The sealing agent is generally made of polyurethane materials, especially cationic materials, which have the best effect. The main solution is to solve the problems of excessive penetration and strong particle absorption, resulting in a harder feel and peeling after coating. It can also improve the adhesion of the non stick coating agent on leather clothes after being sealed. After being sealed with cationic primer, it can be ironed to strengthen the film formation of cationic resin on the leather surface. 3. Leather coating color paste is a leather coating material composed of a combination of colorants, film-forming agents, and additives. The coloring agent is a high fineness pigment paste, such as Haowei water-based nano pigment paste; The film-forming agent is mainly composed of acrylic acid or polyurethane tree in a certain proportion according to the actual situation; Additives are selected based on the actual needs of leather clothing, and there are many types, mainly including repair agents, matting agents, penetrating agents, softeners, etc. 4. The brighteners used for leather clothing renovation mainly include the following types: acrylic acid and polyurethane brighteners, and nitrocellulose brighteners. Haowei leather brightener is generally called a fixative or film-forming agent. When used, it can be sprayed directly without adding any additives or dilutions.