TC INVESTMENT

What is unbleached pulp?

Pulp is processed from certain plants, and it is the basic raw material for papermaking. Due to the requirements of paper varieties, especially some cardboards and industrial technical papers do not require high whiteness, as long as the pulp obtained by cooking is washed, the pulp that maintains its own color tone is the natural pulp.

Including chemical pulp, semi-chemical pulp and mechanical pulp. Such as cement bag paper, cable paper, capacitor paper, etc. are all made of natural kraft wood pulp. Purity Refined Pulp. It is the main pulping method at present. The alkali recovery technology of cooking waste liquid is mature and reliable, but the equipment is more complicated and the investment is large.

Natural pulp is mainly divided into natural straw pulp, natural bamboo pulp and natural wood pulp. Among them, natural straw pulp mainly uses various annual crop straws, such as corn straw, wheat straw, etc., as the main raw materials, which are convenient, environmentally friendly, low-carbon, and have a short cycle of raw materials.

The main raw material of natural bamboo pulp is bamboo. Bamboo pulp cannot be produced on a large scale, mainly due to the influence of growth period and transportation conditions.

The main raw material of natural wood pulp is wood. In today's world, forest resources have been severely damaged and wood resources are scarce. Therefore, natural wood pulp is not environmentally friendly.

The "natural color" virgin pulp technology extracts natural plant fibers such as straw and wood, washes the pulp obtained by cooking, and maintains 100% of the natural color of the plant fibers. A pulping technology that does not use chemicals such as bleaching agents in the whole process.