Natural rubber is a commonly used material for the manufacture of rubber grommets and has excellent tear resistance.

1.Natural rubber plants

Natural rubber is obtained from plants. There are many kinds of plants that can synthesize rubber on the earth. The main one is Heiyawei trefoil tree (Brassica rubber tree). In recent years, the improved silver chrysanthemum has entered the practical stage. There are also Eucommia ulmoides, Eucommia ulmoides and foreign Guttabo gums are the same. The trefoil tree is a tall tree with three leaves. It is named after it. The whole tree has latex tubes and the most dry skin. So the rubber is cut from the trunk, the milk tube is broken, and the latex is collected. Raw material for solid NR.

Second, the production of raw materials for natural rubber
Fresh latex is a good raw material; miscellaneous rubber is a lower grade raw material. The miscellaneous rubber includes rubber cup gel, self gel, glue line, dander glue, mud glue, dross, and pieces for making tobacco sheets.

2.Manufacturing process

Fresh latex is a raw material for the manufacture of high-grade standard glues, tobacco sheets, white wrinkles, and the like. Their manufacturing steps are: dilution, filtration, impurities removal, solidification, water removal, drying, grading, packaging and other processes. But different varieties and processes are different. For example, the tobacco sheet is dried by the fumigation method, and the standard glue is dried by the granulation method. The miscellaneous rubber is used to manufacture standard glues, wrinkles, etc. with relatively low quality.