【Printing knowledge】 Summary of sulfate pulp

Sulfate pulp is also known as kraft pulp.


It is a pulp prepared by cooking fiber raw materials (various kinds of wood, grasses, and waste materials of poor quality) with chemical liquids containing sodium hydroxide and sodium sulfide as the main components.

Sulfate wood pulp is named for its brown color and strong paper strength like cowhide.

Due to the strength of the pulp, high yield, good heat resistance, wide range of raw materials, cooking waste liquid recovery method is mature, has now become the world's main pulp species.

Sulfate pulp is widely used. Uncolored pulp is mostly used in the production of industrial paper for packaging paper, paper bag paper, boxboard and electrical. Its bleached pulp is mostly used for making advanced cultural paper. Its refined pulp can be used as dissolving pulp.

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