A kind of pulping and papermaking method using asparagus as raw material

Abstract

The invention discloses a novel pulping and papermaking method using Chinese alpine rush as the raw material. The method includes: cooking, extracting black liquor, sieving, bleaching and making paper. The method has the advantages that the Chinese alpine rush is used as the raw material, a traditional material preparing step is omitted, dust, flying chips and the like during the material preparing are avoided, the silicon content of the Chinese alpine rush is low and is half of that of wheat straw, Chinese alpine rush fibers are long and thin, the pulp yield of the Chinese alpine rush can reach 50% and is higher than the pulp yield, which is about 40%, of the wheat straw, and high-end and high-additional-value special cultural paper can be produced; the pulp prepared by the method is good in drainability, and black liquor extraction rate can reach above 85% after two double-helix press master serial extraction and is much higher than the black liquor extraction rate, which is 75-80%, of wheat straw pulp; the method is low in chemical use amount, the alkali use amount is evidently lower than that of the wheat straw pulp, the pollutant generation amount is 30-40% lower than that of the wheat straw, production cost and waste treatment cost can be lowered evidently, and enterprise competiveness is enhanced.

Description

Technical field: [0001] The invention relates to a pulping and papermaking method, in particular to a pulping and papermaking method using asparagus as a raw material, and belongs to the technical field of papermaking industry. Background technique: [0002] Due to the needs of corporate strategic development and changes in market demand, making full use of local resources to improve product grades and corporate competitiveness is the development direction of every enterprise. The raw materials used in the traditional papermaking technology are wheat straw, which has a low pulping yield, a large amount of dust, flying debris and wheat bran are produced during the material preparation process, and the amount of pollutants is large, the black liquor contains high silicon content, and there are many miscellaneous cells , It is not easy to handle, the cultural paper produced is not easy to reach a higher grade, and the added value of the product is low. Invention content: [...

AI Technical Summary

Problems solved by technology

The raw materials used in the traditional papermaking technology are wheat straw, which has a low pulping yield, a large amount of dust, flying debris and wheat bran are produced during the material preparation process, and the amount of pollutants is large, the black liquor contains high silicon content, and there are many miscellaneous cells , is not easy to handle, the cultural paper produced is not easy to reach a higher grade, and the added value of the product is low