Natural moistureproof degradable food packaging paper and preparation method thereof

A food wrapping paper, a natural technology, applied in wrapping paper, wrapping paper, packaging, etc., can solve the problems of limited moisture resistance, poor mechanical properties, and insufficient application of edible packaging, and achieve long antibacterial time, excellent antibacterial effect, unbreakable effect

Active Publication Date: 2015-10-21
HUBEI HENGDA PACKING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are degradable food packaging films made of natural biological materials such as soybean protein for oily food packaging, but edible packaging is not widely used commercially. It cannot replace the synthetic polymer plastic film. The main reason is that the mechanical properties of the film are poor. The natural edible polymer material itself is hydrophilic, and its moisture resistance is limited. waiting for solution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The preparation method of natural moisture-proof degradable food packaging paper comprises the following steps:

[0021] (1) Preparation of the fiber layer: take vegetables or fruits as raw materials, wash them and put them in a boiling water bath containing baking soda for blanching treatment. The mass concentration of baking soda in the boiling water is 0.15%; Put the cooled vegetable or fruit raw materials in a beater for beating, and separate the vegetable juice or fruit juice; crush the vegetable pomace and pomace for 25 minutes, and pass through a 120-mesh sieve; place the filtrate under 50MPa and homogenize it for 4 times to obtain a uniform fiber mixture; Boil for 2.5 minutes to make the fiber mixture swell; continue to boil for 2.5 minutes, cool to 65°C, add hydroxymethyl cellulose and sodium alginate in a weight ratio, stir until completely dissolved, then add beeswax, stir evenly, cool, at room temperature, Preserve at 0.15Mpa for 1.5h to degas to obtain a fi...

Embodiment 2

[0026] The preparation method of natural moisture-proof degradable food packaging paper comprises the following steps:

[0027] (1) Preparation of the fiber layer: take vegetables or fruits as raw materials, wash them and put them in a boiling water bath containing baking soda for blanching treatment. The mass concentration of baking soda in the boiling water is 0.1%; Put the cooled vegetable or fruit raw materials in a beater for beating, and separate the vegetable juice or fruit juice; crush the vegetable pomace and pomace for 20 minutes, and pass through a 150-mesh sieve; place the filtrate under 40MPa and homogenize for 5 times to obtain a uniform fiber mixture; Boil for 2 minutes to make the fiber mixture swell; continue to boil for 3 minutes, cool to 60°C, add hydroxymethyl cellulose and sodium alginate in a weight ratio, stir until completely dissolved, then add beeswax, stir evenly, cool, at room temperature, 0.20Mpa Preserve under low temperature for 2 hours to degas ...

Embodiment 3

[0032] The preparation method of natural moisture-proof degradable food packaging paper comprises the following steps:

[0033](1) Preparation of the fiber layer: take vegetables or fruits as raw materials, wash them and put them in a boiling water bath containing baking soda for blanching treatment. The mass concentration of baking soda in the boiling water is 0.2%; Put the cooled vegetable or fruit raw materials in a beater for beating, and separate the vegetable juice or fruit juice; crush the vegetable residue and fruit residue for 30 minutes, and pass through a 100-mesh sieve; place the filtrate under 60MPa and homogenize for 3 times to obtain a uniform fiber mixture; Boil for 3 minutes to make the fiber mixture swell; continue to boil for 2 minutes, cool to 70°C, add hydroxymethyl cellulose and sodium alginate in a weight ratio, stir until completely dissolved, then add beeswax, stir evenly, cool, at room temperature, 0.10Mpa Preserve for 1 hour at low temperature to deg...

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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PUM

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Abstract

The invention provides a natural moistureproof degradable food packaging paper, which includes a fiber layer, a protein film layer, and a moistureproof liquid layer arranged between the fiber layer and the protein film layer. The invention also provides a preparation method of the natural moistureproof degradable food packaging paper. The natural moistureproof degradable food packaging paper is completely a green and safe food packaging supply, and has the characteristics of easily available raw materials, simple operation, low cost, economical efficiency and environmental protection, fully solves the contradiction between food packaging wastes and environmental protection and other problems, and has the advantages of high paper strength, good flexibility, difficult breaking and wide range of application.

Description

technical field [0001] The invention relates to a natural moisture-proof degradable food wrapping paper and a preparation method thereof, belonging to the technical field of the food industry. Background technique [0002] With the development of the food industry, there are more and more types of food packaging paper. The more common ones are cake paper, candy paper, vermicelli paper box, bread paper, biscuit paper box, ice cream outer packaging paper, among which waterproof and oil-proof food packaging Paper is very popular, but most of them use polymer compounds such as polystyrene, polyvinyl chloride, and polypropylene as coating materials. At the same time, these materials are not easy to degrade, difficult to recycle, produce toxic gases when burned, and endanger the ecological environment. features. In addition, in the production process, chemicals such as anti-seepage agent, sizing agent, bleaching agent, dyeing agent, stabilizer, ultraviolet absorber and plastici...

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/10D21H11/12D21H17/22D21H19/82D21H17/02D21H21/14D21F13/00
Inventor 史高峰
Owner HUBEI HENGDA PACKING CO LTD
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