Degradable food packaging paper and preparation method thereof

A food packaging paper, food-grade technology, applied in packaging paper, sustainable packaging industry, packaging, etc., can solve the problems of contaminated food, weak mechanical strength, etc., and achieve the effect of improving mechanical strength, air permeability and strength

Active Publication Date: 2012-06-20
福州素天下食品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the polyvinyl alcohol added to the film will infiltrate and contaminate food in the presence of water. The

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1: A kind of preparation method of degradable food wrapping paper

[0016] A preparation method of degradable food packaging paper, comprising the following steps:

[0017] (1) Preparation of konjac sol: Weigh 5g, 9g, and 9g of konjac glucomannan, carrageenan, and soybean protein isolate, respectively, and dissolve them in 1L of water, stir well and let stand for swelling for 2 hours to obtain konjac sol;

[0018] (2) Preparation of slurry: Take food-grade raw wood pulp with a moisture content of 15%-20%, dissolve the pulp according to the weight ratio of raw wood pulp and water at 1:9, and use 0.1mol / L sodium hydroxide to adjust the pH 8.0, formulated into food-grade wood pulp;

[0019] (3) Filler: Add glycerin accounting for 0.4% of the konjac sol weight in the konjac sol in step (1) as a plasticizer, and add the food-grade wood pulp prepared in step (2) by 3 times the weight of the konjac sol. Stir the mixer at 12r / s in a water bath at 75°C for 1 hour to...

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PUM

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Abstract

The invention relates to a piece of degradable food packaging paper and a preparation method of the degradable food packaging paper; the preparation method of the degradable food packaging paper comprises the following steps of preparing konjak sol, preparing slurry, padding, degassing membrane-making and drying, waxing and airing. The preparation method provided in the invention takes konjac glucomannan as main raw material; soy isolate protein and carrageenan are added as accessories; glycerol is used as a plasticizer; without being bleached, the added slurry does not contain carcinogens, such as dioxin, organohalogen compounds and the like; the fiber slurry is porous and has a thick wall, so as to improve air permeability and strength of products effectively; the degradable food packaging paper prepared by the processes, such as sol dissolving, mixing, swelling and smearing edible paraffin wax and the like has the characteristics of safety, no toxicity, environment-friendliness, etc., simultaneously, the mechanical strength is distinctly improved; various added raw materials are in food grade, so that osmosis phenomenon which may happen cannot pollute food; and the degradable food packaging paper can be used as internal package paper for food, such as ice cream, cake, fry, etc.

Description

technical field [0001] The invention relates to a food wrapping paper and a preparation method thereof, in particular to a degradable food wrapping paper and a preparation method thereof. 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 plasticizer are...

Claims

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Application Information

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IPC IPC(8): C08L5/02C08L89/00C08L5/00C08L97/02C08K5/053B65D65/46B29C43/22B29L7/00
CPCY02A40/90Y02W90/10
Inventor 庞杰唐伟敏吴春华范琳琳温成荣
Owner 福州素天下食品有限公司
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