Method for preparing natural colored mechanical pulp by utilizing laccase to treat bagasse

Abstract

The invention discloses a method for preparing natural colored mechanical pulp by utilizing laccase to treat bagasse. According to the technical scheme, the method comprises the steps that hot water pre-extraction is conducted on bagasse, laccase and an interbody are adopted to conduct first-stage laccase biotreatment on the hot water pre-extracted bagasse, the bagasse pulp obtained after first-stage laccase biotreatment is ground, then the filtrate obtained after first-stage laccase biotreatment is adopted to conduct second-stage laccase biotreatment on the ground pulp. The reaction conditions of the method are moderate, the unique product is water, no chemical agent is not used in the whole technological process, the environmental pollution problem is solved, the prepared natural coloredmechanical pulp of the bagasse has good water filtering performance, and the physical properties of prepared paper are high.

Description

technical field

[0001] The invention belongs to the technical field of pulping and papermaking in light industry technology, and in particular relates to a method for preparing natural color mechanical pulp by treating bagasse with laccase. Background technique

[0002] my country's forest resources are few, and timber resources are seriously scarce. At present, my country's pulp and paper industry is facing a shortage of resources. Therefore, making full use of non-wood fiber raw materials has become an important method to alleviate the shortage of raw materials in the pulp and paper industry. However, it is also a good fiber raw material for pulping and papermaking. In major sugar-producing provinces such as Guangxi, Yunnan, and Guangdong, because bagasse is easy to transport in a centralized manner, it reduces the cost of collection and transportation, making the use of bagasse an advantage. pulp and paper raw materials.

[0003] Traditional bagasse pulping methods mainly ...