Chinese yew pulp and preparation method thereof

Abstract

The invention discloses Chinese yew pulp and a preparation method thereof. Chinese yew stalks are used as raw materials, shredded by a rolling and grinding shredding machine and then added into the potassium hydroxide solution for pre-impregnation, water is squeezed out after pre-impregnation, complex enzyme comprising lignin peroxidase and manganese peroxidase according to the mass ratio of 5:1-4 is added into the solution, the Chinese yew stalks are soaked for 30-40h at the temperature of 35-50 DEG C, alkali cooking is performed after defibrination, total chlorine free bleaching is performed after shoving, cleaning, screening and impurity removal, and then paper is manufactured with pulp after acid treatment, washing and desanding, so that the Chinese yew pulp is prepared. A using approach with a high added value is provided for the Chinese yew stalks, the application field of the Chinese yew stalks is widened, a low-pollution mature production process is provided for preparing dissolving pulp and regenerated cellulose fibers with the Chinese yew stalks, and shortage of regenerated cellulose fiber raw materials at present is relieved.

Description

technical field

[0001] The invention relates to the technical field of viscose fiber, in particular to a pulp prepared from yew as a raw material and a preparation method thereof. Background technique

[0002] As a textile raw material, regenerated cellulose fiber is deeply loved by consumers due to its light texture, smoothness, softness and comfort. The raw materials of regenerated cellulose fiber are mainly cotton linters, wood, bamboo and hemp. Due to the high price of cotton linters in the past two years, the profit margin of regenerated cellulose fibers has been reduced. Due to the limited forest area in our country, a large amount of wood is also required for papermaking, and the wood production cycle is long, resulting in less and less wood resources; and some hemp and bamboo can be directly spun after degumming and delignification, but with The production of regenerated cellulose fibers from hemp and bamboo after pulping is relatively polluting to the environment. ...