Refers to the thickness of the caliber of the enteric coating.

Enteric coats are livestock products made from the large and small intestines of domestic animals by scraping. Mainly used as filler sausage and enema coat; sheep enteric coats can also be made into intestinal thread, for the production of tennis racket line, bowstring and surgical sutures and so on.

Enema according to the animal points of pig enteric coating, sheep enteric coating and cattle enteric coating. According to the parts of the large intestine, small intestine. Intestine from the inside out into mucosa, submucosa, muscle layer and plasma membrane 4 layers. According to the different requirements of livestock and processing of finished products, the treatment of the above four layers is not the same. The good quality of enteric coating should be tough and translucent. Now emerging for collagen edible enteric coating.

Definition and use

The large and small intestines of domestic animals are scraped into a tough translucent film. According to the animal is divided into pig enteric coating, sheep enteric coating and cattle enteric coating 3 categories, and can be divided into small enteric coating and large enteric coating. Mainly used as filling sausage and enema coat; sheep enteric coating can also be made into intestinal line, for the production of tennis racket line, bowstring, musical instrument strings and surgical sutures and so on.

China's processing of sausage casings has a history of more than a hundred years, pig sausage casings are mostly produced in East China and Central China; sheep sausage casings are mostly produced in North China, Northeast China and Inner Mongolia. Initially, it was only used for bowstrings and cotton strings, with limited production, and it began to be processed and produced by factories in Tianjin and Beijing in the early 20th century, and soon became an important export material for China.