Plastic-emulated printing paper and its manufacturing technique

Abstract

An analogical printing paper belongs to the technology field of papermaking, and is made through the following steps: adding 1.0-1.5 weight parts of barrier used for improving the smoothness and the permeability resistance of the paper, 2.0-2.5 weight parts of water resisting agent used for improving the water resistance of the paper and a proper amount of auxiliary agent to 100 weight parts of the paper pulp; papermaking; wetting and calendaring. By adopting the material of bleached plant fiber, the inventive method includes pulping, sizing, adding the chemical auxiliary agent and papermaking on the multi-cylinder line mesh paper machine to obtain the base paper, then wetting and supercalendering. The printing paper has the advantages that the paper has the appearance the feature of a polypropylene film-brightness and transparence, which, as packaging material instead of Bopp, is capable of fully degrading and protecting the ecological environment; in addition to the refined paper quality and high oil absorbency, the analogical printing paper has fine printing quality and high water resistance, in case of raining and drenching, the paper is capable of water resisting, keeping the paper surface smooth and being free from deformation, breakage and decoloring. The paper is applicable to the packaging material and plays a role in the moisture-proof preservation of the food and is capable of extending 30% of the preservation period.

Description

technical field [0001] The invention belongs to the technical field of papermaking, in particular to the papermaking for packaging purposes. Background technique [0002] At present, in the packaging of food, especially instant noodles, polypropylene film (BOPP) is generally used as packaging bags. Its appearance is bright and transparent, and its printing effect is good, so it is favored by various manufacturers. However, as the price of petroleum products continues to rise, the price of polypropylene is getting higher and higher, which makes the prices of many commodities that use polypropylene film as packaging bags increase. Not only that, polypropylene film is non-degradable, will produce white pollution, destroy the ecological environment, people have been looking for alternatives. [0003] Paper has long been used as a packaging material. Although it is degradable, paper has the following problems as a packaging material: it lacks the bright and transparent appeara...

AI Technical Summary

Problems solved by technology

Although it is degradable, paper has the following problems as a packaging material: it lacks the bright and transparent appearance characteristics of polypropylene film, cannot be made very thin, has poor smoothness, reduces the aesthetics of printing, is easy to decolorize, and has no waterproof performance , if it gets wet in rainy days, the paper surface cannot be kept flat, it is easy to deform, easy to be damaged, and the barrier performance is poor, so it cannot block the penetration of air. If it is used in food packaging materials, the shelf life of food will be reduced

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