Production technology of kraft vermicelli case board paper

Abstract

The invention discloses a production technology of kraft vermicelli case board paper. The production technology comprises the steps that recycled waste paper materials are screened, the recycled waste paper with low ash content is selected for pulping with softwood pulp, preliminary pulping is conducted through the processes of repulping, purifying, screening and the like, the fiber strength is emphatically improving in the grading and beating processes, longer fibers are screened to serve as surface layer pulp, the fiber beating degree is improved on the condition that the fiber strength is not damaged, and the fiber bonding strength is improved through the fiber arrangement mode on a net portion so as to improve the surface strength, toughness and folding strength of finished paper; by means of the measures of surface sizing, after-drying moisture precise control and finished paper coating, the product has the better explosion-proof line quality advantage and is more environmentally friendly, and the market share of the product is bound to be increased.

Description

technical field [0001] The invention relates to a production process of kraft noodle linerboard, which belongs to the technical field of packaging materials. Background technique [0002] With the continuous development of the domestic economy and the rapid development and popularization of e-commerce, people's requirements for the packaging of industrial goods are increasing, especially when packaging electronic products and valuables, the quality requirements for cartons are getting higher and higher. The cracking of the crease line of the carton during processing, folding, packing and stacking is called cracking. Especially in dry weather, the cracking problem makes the quality of the carton drop sharply. In addition to the beer line process and equipment for making cartons, there are quality problems in the base paper for making cartons. [0003] In recent years, due to the increasingly prominent environmental protection issues, the paper industry generally uses recycle...

AI Technical Summary

Problems solved by technology

[0003] In recent years, due to the increasingly prominent environmental protection issues, the paper industry generally uses recycled fibers from waste paper to make pulp and paper to reduce the use of wood resources. The ash content of paper raw materials is getting higher and higher, resulting in poorer surface strength, toughness and folding endurance of the finished paper produced, making it difficult to meet the needs of downstream customers