Bright yellow antibacterial natural color bamboo paper pulp and paper product thereof

Abstract

The invention relates to bright yellow antibacterial natural-color bamboo paper pulp and a paper product thereof. The ratio of the mass sum of pentosan and acid-insoluble lignin in the bamboo paper pulp to the mass of cellulose is 1:(0.3-8.0), wherein after the bright yellow natural color bamboo paper pulp is made into 80g/m2 round paper, the yellow chromaticity b* is 23-33, the L* is 63-72, and the a* is 2-5. According to the bamboo paper pulp, natural components of bamboos are fully reserved, hemicelluloses with relatively strong hydrophilic performance and capable of increasing fiber elasticity are fully reserved, lignin with relatively strong oil absorption performance is preserved as a component of a paper pulp product, and naturally existing substance components beneficial to sterilization and disinfection in the bamboos are reserved in the bamboo paper pulp; therefore, the ratio of pentosan, acid-insoluble lignin and cellulose in the bamboo paper pulp product has excellent antibacterial performance, so that the bamboo paper pulp product has good antibacterial activity, water absorption, oil absorption and writing performance. The product has better advantages when being used as a raw material for developing household paper, food packaging paper and writing paper.

Description

technical field [0001] The invention belongs to the field of industrial papermaking, specifically relates to a bright yellow antibacterial natural color bamboo pulp and its paper product, and provides a pulping method applied to the production of the bamboo pulp. Background technique [0002] As the concept of environmental protection is deeply rooted in the hearts of the people, natural color paper is very popular in the trillion-level paper product market. In recent years, natural color paper products such as packaging paper, kraft paper, household paper, and writing paper have expanded rapidly and have huge market potential. At present, the production methods of uncolored paper products are made by biological fermentation or traditional chemical process to reduce the bleaching process. The method of biological fermentation is more used for straw pulp for pulping and papermaking. Bamboo with a relatively dense structure is difficult to use as a method for biological ferme...

AI Technical Summary

Problems solved by technology

The method of biological fermentation is more used for straw pulp for pulping and papermaking, and bamboo with a relatively dense structure is difficult to use as a method of biological fermentation to make pulp, so the scope of use of this method has certain limitations

The traditional chemical process reduces the bleaching process. Although it reduces the harm of some chemical raw materials such as chlorine, benzene, and phosphor to the body, the process uses excessive alkali, sulfurized alkali, anthraquinone and other additives, as well as higher temperature and pressure. It destroys the energy combined between cells, destroys cellulose, hemicellulose, lignin and natural components in plants to produce some toxic and harmful substances, and causes foul smell and a large amount of black liquor pollution. The natural color pulp obtained from the production process is mainly The cellulose extraction rate of the ingredients is low, the hemicellulose with strong hydrophilic properties and increased fiber elasticity is severely damaged, the lignin with strong oil absorption properties is seriously lost, and the natural substances in bamboo are beneficial to sterilization and disinfection. Destroyed by high temperature and strong alkali environment

The traditional chemical pulping process makes the paper tone unsatisfactory, the color is gray and dark, and the visual pleasure for consumers is not strong

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