Abstract: Four kinds of acrylic resin retanning agents, which have about 105 molecular weight, of which there are 1604>1683>1600>CLE, were applied to comparison of basic properties and performence retanning cattle wet blue. The results show that in the chromium salt solution the stability of acrylic resins is 1683>CLE>1604>1600, and four acrylic resin retanning agents all increase the absorption of chrome salt when they were used in chrome retanning. It was found that the disadvantage is that they all will affect the absorption of dyes on the surface of the crust leather, especially 1604 and 1683.As far as fineness of grain surface, retanning of CLE and 1604 is better than that of 1683 and 1600.

Key words: leather, acrylic resin, retanning, application