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Oil-proof food packaging paper and preparation method thereof

A technology for food wrapping paper and oil repellency, applied in the directions of wrapping paper, wrapping paper, packaging, etc., can solve the problems of limited improvement of paper oil repellency, reduced surface energy of fiber surface, and inability to wet oil and grease, etc., and is conducive to adhesion , High firmness, and the effect of improving adhesion

Inactive Publication Date: 2018-01-12
安徽蓝韵包装有限公司
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AI Technical Summary

Problems solved by technology

The former has limited improvement in the oil-proof performance of paper, while the latter uses refractory materials, which can cause environmental problems
In recent years, some researchers have begun to use fluorocarbon surfactants to reduce the surface energy of the fiber surface, so that the oil cannot wet the fiber and achieve the oil-proof effect, but fluorocarbons may contain PFOA perfluorooctanoic acid ammonium, PFOS perfluorooctane sulfonate Hazardous substances such as acid salts, there are potential safety hazards

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] An oil-proof food wrapping paper, comprising base paper and an oil-proof layer, the base paper comprising the following components by weight: microfibrillated cellulose 10, bleached wood pulp 40, bamboo pulp 20; the oil-proof layer comprising the following weight Parts of raw materials: chitosan 1, acetic acid 1, silk fibroin liquid 1, graphene oxide 0.01, polyethylene glycol glycidyl ether 0.1, water 80.

[0018] The microfibrillated cellulose has a diameter of 50 nm and a length of 10 μm.

[0019] The silk fibroin liquid is prepared by mixing silk fibroin, calcium chloride, ethanol, and water in a molar ratio of 0.1:1:2:5, stirring and dissolving at 60°C.

[0020] The preparation method of the oil-proof food wrapping paper of this embodiment, comprises the following steps:

[0021] Preparation of oil-proof layer materials: Put acetic acid and chitosan into water in turn, stir until they are completely dissolved, then add graphene oxide and silk fibroin solution, cont...

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Abstract

The invention discloses an oil-proof food packaging paper and a preparation method thereof. The packaging paper consists of a raw paper and an oil-proof layer; the raw paper is prepared from the following components in parts by weight: 10 to 20 parts of microfibrillated cellulose or modified microfibrillated cellulose, 40 to 50 parts of bleached wood pulp and 20 to 30 parts of bamboo pulp; and theoil-proof layer is prepared from the following materials in parts by weight: 1 to 10 parts of chitosan, 1 to 10 parts of acetic acid, 1 to 5 parts of silk fibroin solution, 0.01 to 0.1 parts of graphene oxide, 0.1 to 2 parts of crosslinking agent and 80 to 150 parts of water.

Description

technical field [0001] The invention relates to the technical field of oil-proof food wrapping paper, in particular to an oil-proof food wrapping paper and a preparation method thereof. Background technique [0002] In the field of packaging industry, food packaging accounts for nearly 70% of the proportion, and the selection of packaging materials is also very strict, which is directly related to the health of consumers and the effective storage of food. Plastic packaging materials are widely used as a cheap, light and good barrier food packaging material, but the biggest defect of plastic packaging materials is that it is difficult to degrade and migrate chemical components. A defect restricts its development. With the improvement of government and consumers' awareness of environmental protection, the development and use of paper food packaging materials has become a key development direction in this field. However, paper packaging materials have disadvantages such as po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/10D21H15/10D21H11/02D21H11/12D21H17/25D21H19/16D21H23/30D21H25/06D21H21/14D21H21/36
Inventor 薛鹏飞
Owner 安徽蓝韵包装有限公司
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