Bookbinding hot melt adhesive

species

1 gelatin

It is made from skin and scales that are left without viscera, blood, and meat. The raw materials are washed, soaked in lime water, acidified and dephosphorized calcium phosphate in the scales, rinsed, neutralized, gelled, filtered, frozen, sliced and dried. Gelatin has high purity, high transparency and viscosity, and strong freezing power. It is mainly used for the production of culture media, enamel plates, photographic films, etc. It can also be used in the food industry.

2 crude rubber

After cleaning raw materials such as head, tail, and bone mixed with blood, meat, and viscera, steam is heated in an autoclave and then filtered through a filter press or high-speed centrifugation to remove impurities and fish oil, and then evaporated. 50% concentration, then add preservatives and spices Serve. Do not freeze at room temperature, easy to use. It is an adhesive for wood, leather, etc. It is also a powder binder in the manufacture of matches and grinding wheels.

3 Fish Glue

After removing the mucus and blood stains from the fish gills, the inner and outer membranes are stripped, and the larger and thicker pieces are individually dried to form a piece of plastic. The smaller and thinner pieces are stacked together and rolled into a round or ribbon shape. Round glue or glue. The color is slightly yellow, translucent, strong tough, slightly fishy smell, used as a clarifying agent for beer and other beverages and a thickener for fruit juice jam. In addition, the quality of large yellow croaker film, also known as fish maw, is a traditional seafood. Yellow lip fish glue is a valuable supplement. Fish gelatin is used as a clarifying agent for alcohol and has long been used for the clarification of beer, improving the degree of cooling, and correspondingly improving the freezing stability, and has a certain effect on shortening the ripening period.