Preparation method for hemp full-stem paper straw

Abstract

The invention discloses a preparation method for a hemp stem-based paper straw, and belongs to the technical field of straw production. The raw paper of the paper straw provided by the invention is made of a hemp full-stem pulp obtained by pulping through a solid oxygen-alkali method, wherein the quantification of inner-layer raw paper is 80 to 120 g / m2; and the quantification of outer-layer raw paper is 50 to 70 g / m2. According to the invention, the raw paper is cut after single-face sizing treatment; straw rolling is then performed on a straw mold, wherein oblique-angle wrapping is adopted for rolling, and the angle is in a range of 30 to 50 degrees; two layers of straw paper are bonded through a synthetic casein environmentally-friendly degradable paper straw hot-water-resistant adhesive; drying treatment is then performed at 110 DEG C for 5 min; and cutting is performed according to set parameters. The hemp stem pulp used for straw paper making is obtained by adopting a solid oxygen-alkali pulping technology which is mild in conditions and friendly to the environment, so natural antibacterial components of hemp stems are greatly retained; the load of environmental pollution isreduced; the paper straw is endowed with a natural antibacterial effect and caters to a sustainable development strategy advocated by the nation; and the paper straw has good economic effect and social effect.

Description

technical field [0001] The invention relates to a method for preparing hemp whole-rod paper straws, which belongs to the technical field of straw production. Background technique [0002] With the continuous improvement of human living standards, people's awareness of environmental protection has gradually strengthened. However, in the food industry, the straws commonly used by the public are mostly plastic straws. Plastic straws will add a variety of additives during the manufacturing process, which have certain toxic and side effects on the human body. At the same time, if you drink hot drinks with plastic straws, the plastic straws will also release toxic and harmful or carcinogenic substances, which will cause great harm to the human body. In addition, plastic straws cannot be decomposed after use, which is a major source of white pollution, and burning treatment will produce a large amount of toxic and harmful gases, polluting the atmosphere; based on this, North Amer...

AI Technical Summary

Problems solved by technology

Plastic straws will add a variety of additives during the manufacturing process, which has certain toxic and side effects on the human body

At the same time, if you drink hot drinks with plastic straws, the plastic straws will also release toxic, harmful or carcinogenic substances, which will cause great harm to the human body.

In addition, plastic straws cannot be decomposed after use, which is a major source of white pollution, and burning treatment will produce a large amount of toxic and harmful gases, polluting the atmosphere; based on this, North America and Hong Kong, China and other places have issued relevant documents to ban plastic straws use; therefore, the development of paper-based straws based on plant fiber raw materials has become an important option

[0003] As an important planting base of industrial hemp in my country, Yunnan has a large number of industrial hemp stalks abandoned in the field or directly burned every year, resulting in a huge waste of resources

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