Moisture-proof packaging paper and preparation method thereof

A technology of wrapping paper and paper, applied in the direction of wrapping paper, wrapping paper, packaging, etc., can solve the problems of weak barrier, easy delamination, cracking, etc.
CN112761028AActive Publication Date: 2021-05-07CHINA TOBACCO SICHUAN IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA TOBACCO SICHUAN IND CO LTD
Publication Date
2021-05-07

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Abstract

The invention discloses a preparation method of moisture-proof packaging paper, and the method comprises the following steps: adding a high-hydrophobicity natural grease material into a degradable polymer matrix solution with good film-forming property and water solubility, and adding an emulsifier to prepare a composite emulsion; employing the homogenized composite emulsion for paper coating, enabling grease to be enriched on the surface of a polymer matrix by controlling the drying temperature, and forming a similar double-layer coating structure, thereby improving the moisture resistance and physical strength of paper.
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Description

technical field

[0001] The invention relates to the technical field of wrapping paper, in particular to a moisture-proof wrapping paper and a preparation method thereof. Background technique

[0002] Due to the characteristics of abundant resources, easy recycling and easy degradation, paper packaging materials are considered to be the most promising green packaging materials. However, due to its strong hydrophilicity and its physical properties are greatly reduced after moisture absorption, it cannot meet the packaging needs of food, cigarettes, medicines, precision instruments and other fields. At present, paper often achieves moisture-proof function through high water vapor barrier materials such as composite plastics and metals. However, these methods will cause paper to lose its original degradation and recyclability, resulting in waste of resources, environmental pollution and other problems. Therefore, it is of great significance to develop paper coating materials w...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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