Biodegradable cellulose cotton compressed dish sponge

The raw materials for manufacturing are different, one is natural, and the other is chemical. Kapok: Mechanical wood-pulp Mechanical Wood Pulp, also known as ground wood pulp, is the use of mechanical methods of grinding fiber raw materials made of pulp. It occupies an important position in the paper industry. It has the advantages of low production cost, simple production process, strong ink absorption, high opacity, and soft and smooth paper. Suitable for printing requirements. However because of the short fiber and high content of non-cellulose components, the strength of paper is low. In addition, as the majority of Wood Lignin and other non-cellulose has not been removed, with its production of paper Yellow Brittle, can not be long-term preservation. Mechanical Wood pulp usually refers to white mechanical wood pulp and Brown mechanical wood pulp two kinds. White Mechanical Wood pulp is mainly used in the production of newsprint, but can also be mixed with other pulps to make writing and printing paper; Brown Mechanical Wood pulp is ly used in the production of packaging paper and paperboard, especially for industrial use.

Kraft wood pulp uses a mixture of sodium hydroxide and sodium sulfide as a cooking agent. In the cooking process, because the effect of liquid medicine is relatively gentle, the fiber does not have strong erosion, so strong and strong, made of paper, its folding, rupture, and tear strength is. It is generally divided into bleaching and non-bleaching two kinds. Unbleached kraft wood pulp can be used for kraft paper, sack paper, Kraft Carton Board, and general packaging paper and paperboard. Bleached kraft wood pulp can be used for the manufacture of high-grade Printing paper, newspaper, offset paper, and writing paper. Wood sulfite wood sulfite wood pulp is a mixture of sulfite and acid sulfite. The fiber of the pulp is long, soft, tough, strong, easy to bleach, and has interweaving ability. According to the degree of refining, it can be divided into three types: unbleached, semi-bleached, and bleached. Unbleached pulp contains a small amount of Lignin and colored impurities, so it is yellow, fiber is also harder, ly used to make medium printing paper, thin packaging paper and translucent paper, and oil-proof paper. The semi-bleached pulp contains a large number of Pentosyl, so make transparent tracing paper and parchment-like paper, etc.