As technology advances, PU synthetic leather has a natural leather more than excellent performance, wider range of applications in aerospace and other high-tech fields has also been applied. Currently, the market size of the global PU synthetic leather 500 to $ 70 billion, mainly in China, Korea, Japan, South America, South Asia, Europe and other regions. China has a large and small, nearly two thousand PU synthetic leather production enterprises (included in the statistics in the 500 or so) the first of the world. It is foreseeable, PU synthetic leather research and development, the result of human progress demands more updates, PU synthetic leather in the future, will the colorful, brilliant. Well, PU synthetic leather is how the development and progress of it? In addition to production technology, equipment, base and other innovation, but perhaps more importantly aids the development and innovation.
Generally, PU synthetic leather innovative procedures to achieve the following: Innovative PU additives added during synthesis, PU resin + additives + innovation innovative fabric and other substrates + filler + Toner → through a variety of innovative = PU synthetic leather manufacturing process. Thus, development aid plays a crucial role in the development of PU synthetic leather.
 
Additives generally divided into the following five categories:
First, solve the problem category. Eg: defoamers, wetting agents, anti-pinhole agents, leveling aids, wet with a fixing agent, from DMF aids, Foam aids, anti-blocking agent, interface integration, tackifier, dispersant and many more. These materials play a crucial role in PU resin and PU synthetic leather manufacturing process, without them, PU resin and PU synthetic leather can not be normal production;
Second, improve the processing performance class. Such as: high peeling aids, tear aid, Yin (Yang) ion penetrant, cell adjusting agent, resin modifiers, fillers add accelerators, help liniment, increase modulus agents, lowering modulus agents, Special embossing aid, gilding auxiliaries, graining additives. These materials are an important part of PU resin and PU synthetic leather, it was sex and feel a significant change to meet the requirements of the people;
Third, the increase in functional class PU material itself does not have. Such as: splashing water, antibacterial antifungal agents, flame retardants, scratch resistant, a waterproofing agent, high temperature anti-aging agent, leather flavor additives, anti-yellowing additives, cold agent, hydrolysis agent, breathable absorbent materials, shielding materials, insulation materials, anti-far infrared materials, aromatic materials, luminescent materials and so on. Adding such materials, synthetic leather PU itself does not have a function, which appeared functional PU resin and functional PU synthetic leather to meet human needs more areas;
Fourth, adjust PU synthetic leather surface effects and feel class. Such as: slip agents, slip wax feeling agent, special exhibition color feeling agent, powder material sense, fog black material, coke material sense, drape materials, soft materials, leather with special shrinkable material, fog wax material, color material, wet waxy materials, velvety material is to provide such materials to PU synthetic leather surface special effects, in order to meet the needs of individual people and with on fashion, the pursuit of beauty.
Fifth, the table at the agent, special resin. Traditionally, these materials would have been not in the aid category, they are made with ordinary PU resin through additive compound or synthesis process, to create a new material. PU synthetic leather generally used for the surface layer or coating layer, the synthetic leather has a special surface effects and feel. According to the China Plastics Processing Association latest statistics standard current, in order to unify standards, we surfacing agents, special resin additives included in the range. Such as various matte, glossy, velvety, wax feeling, a sense of powder, astringent flu surfacing agents, all kinds of discoloration, cracking, Crazy Horse breathable, absorbent, polishing, wiping color, hot coke and other special resin. With PU synthetic leather like middle-grade, personalized, functional development, surfacing agent, using a special resin increases, more and more varieties. It PU synthetic leather manufacturing costs in the proportion is growing.