Novel cigarette packet paperboard

Abstract

The invention relates to a cigarette packet paperboard, which comprises a core layer, a surface layer and a back layer. The surface layer and the back layer of the paperboard are mixed fiber pulp paper containing tobacco fibers and hemp fibers. The mixed fiber pulp comprises the following components in percentage by weight: 6 to 30 percent of tobacco fiber pulp, 5 to 25 percent of hemp pulp, 0 to 25 percent of bleached softwood pulp and 40 to 70 percent of bleached hardwood pulp. The tobacco fiber pulp is prepared by washing the tobacco raw material, preparing into fragments not more than 2cm, adding water after screening and removing dust and cooking. The pulp preparation condition is that the cooking temperature is 80-145 DEG C, the pressure is an ordinary pressure-0.3MPa, the alkali amount is 0-12%, the cooking time is 30-90min, and the solid-liquid ratio is 1:3-6. The tobacco fiber pulp is obtained by filtering, extruding, washing the cooking liquid, and removing impurity. A part of bleached softwood pulp or bleached hardwood pulp used by the surface layer and the back layer of the cigarette packet paperboard is replaced by the tobacco fibers and the hemp fibers, so that cost can be reduced, quality can be ensured, and strength is qualified.

Description

technical field [0001] The invention belongs to the technical field of cigarette packaging material production, and in particular relates to a cigarette pack paper added with natural tobacco fibers and hemp fibers. Background technique [0002] Cigarette cases are mainly used to protect cigarettes and facilitate storage and transportation of cigarettes. The paper currently used to make cigarette boxes is mainly hard-packed white cardboard and soft-packed coated paper, both of which are high-grade packaging papers. The main fiber raw materials are imported bleached softwood pulp and bleached hardwood pulp, and the cost is relatively high. . Commonly used cigarette pack paper is generally divided into surface layer, core layer and back layer. Generally, the surface layer and the back layer are produced with bleached coniferous pulp and bleached broadleaf pulp in different proportions to meet the requirements of high whiteness, high stiffness, and high folding resistance; th...

AI Technical Summary

Problems solved by technology

[0003] The purpose of this patent is to solve the problems existing in cigarette pack paper at present, and to provide a kind of tobacco fiber and hemp fiber to replace part of the bleached coniferous pulp or hardwood pulp fibers used in the top layer and back layer of cigarette pack paper, which can reduce the A new type of cigarette pack paper that can reduce costs while ensuring quality and strength

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