Preparation method of composite kraft paper

Abstract

The invention discloses a composite brown paper. The composite brown paper is prepared from a bottom layer, a core layer, a surface layer and a decorative layer through compounding on an order. The bottom layer is prepared from waste paper pulp, bamboo-wood pulp and needlebush pulp. The core layer is prepared from a first sizing agent and essence. The surface layer is prepared from waste paper pulp, needlebush pulp and hardwood pulp. The decorative layer is prepared from a second sizing agent and dry flowers. A preparation method of the composite brown paper comprises bottom layer preparation, surface layer preparation, core layer preparation, bottom, surface and core layer compounding, drying, decorative layer compounding and drying. The outer surface of the composite brown paper is decorated through dry flowers so that the composite brown paper has unique and beautiful appearance, has a dry flower fragrance, provides natural and healthy experience for a user and is suitable for preparation of various high-grade gift bags and packaging bags. The preparation method has simple processes, utilizes a traditional brown paper production line for production, has a large waste paper pulp use amount and is environmentally friendly.

Description

technical field [0001] The invention relates to the field of kraft paper preparation. More specifically, the present invention relates to a preparation method of composite kraft paper. Background technique [0002] Kraft paper is used as packaging material. It has high strength and is usually yellowish brown. Semi-bleached or fully bleached kraft pulp is light brown, cream or white, with a basis weight of 80-120g / m 2 , high tear strength, breaking work and dynamic strength, mostly roll paper, and flat paper, generally using kraft coniferous wood pulp as raw material, after beating, it is made on a fourdrinier paper machine, and can be used as cement Bag paper, envelope paper, plastic seal paper, asphalt paper, cable protection paper, insulating paper, etc. [0003] With the introduction of the plastic restriction order and the strengthening of people's awareness of environmental protection, natural kraft paper is often used to make kraft paper bags due to its environmental...

AI Technical Summary

Problems solved by technology

[0003] With the introduction of the plastic restriction order and the strengthening of people's awareness of environmental protection, natural kraft paper is often used to make kraft paper bags due to its environmental protection and strong pressure, and the consumption is increasing year by year. However, the decoration of existing kraft paper bags is all on its surface Ink printing patterns or logos are not novel and chic enough, and during use, the ink is likely to fall off or permeate, polluting the contents of the package. In addition, ink printing will also cause the smell of residual ink on the kraft paper bag, giving people an unpleasant sensory experience