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Preparation method of degradable anticorrosive food packaging paper

A food wrapping paper and easily degradable technology, applied in the directions of wrapping paper, wrapping paper, packaging, etc., can solve the problems of toxic gas harming the ecological environment, food wrapping paper is not easy to degrade, and cannot take into account the anti-corrosion effect, etc., and achieves good preservation and anti-corrosion effect. Unbreakable, Versatile Effects

Active Publication Date: 2017-02-01
LONG LI DE LD INTELLIGENT TECH CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main technical problem to be solved by the present invention is to solve the defects that the existing food packaging paper is not easy to degrade, difficult to recycle, and the toxic gas generated after incineration will harm the ecological environment, and its function is single. A method for preparing easily degradable and anti-corrosion food wrapping paper. The invention uses palm leaves as raw materials, bleaches them to obtain bleached mixed fibers after alkali washing and acid soaking, and then mixes montmorillonite and silicon dioxide with castor oil in the microbes The ultraviolet absorber is compounded and modified under the action of UV absorbent, and finally the two are mixed and supplemented with other raw materials to be beaten and made into paper to obtain easily degradable and anti-corrosion food packaging paper. Cranberry juice is modified to increase the anti-oxidation effect of the fiber, and then the characteristics of montmorillonite to shield ultraviolet rays and silica to absorb ultraviolet rays are used. The two are mixed and modified with castor oil rich in hydrophobic ester groups to increase the hydrophobicity of the mixture. Finally, the hydrophobic mixture and anti-oxidation fiber are compounded into wrapping paper, which can be hydrophobic, moisture-proof, UV-resistant and anti-oxidant, and achieve anti-corrosion and fresh-keeping effects. ,with broadly application foreground

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0019] First take by weighing 1kg of palm fronds and rinse with deionized water for 20min and then put them into a jet mill to pulverize for 1h, and the obtained pulverized matter is soaked in 0.5mol / L sodium hydroxide solution and 0.5mol / L hydrochloric acid for 40min successively, and the Take out the pulverized material after soaking and rinse it with distilled water until the eluent is neutral; then transfer the washed pulverized material into a fermenter immediately, and add cranberry juice and pulverized material with 30% of the total mass of the pulverized material into the tank Grape skins of equal quality are placed in a 35°C incubator after sealing the fermenter for 9 days of heat preservation and fermentation. After the fermentation is complete, filter and separate to obtain the filter residue. Mix the filter residue and 30% hydrogen peroxide at a volume ratio of 2:1 before loading Put it into a transparent plastic bag, put it in the sun for 6 hours, and obtain the bl...

example 2

[0022] First take by weighing 1kg of palm fronds and rinse with deionized water for 20min and then put them into a jet mill to pulverize for 1h. The obtained pulverized matter is soaked in 0.5mol / L sodium hydroxide solution and 0.5mol / L hydrochloric acid for 50min successively. Take out the pulverized material after soaking and rinse it with distilled water until the eluent is neutral; then transfer the washed pulverized material into a fermenter immediately, and add cranberry juice and pulverized material with 30% of the total mass of the pulverized material into the tank Grape skins of the same quality are placed in a 38°C incubator after sealing the fermenter for 10 days of heat preservation and fermentation. After the fermentation is complete, filter and separate to obtain the filter residue. Mix the filter residue and 30% hydrogen peroxide at a volume ratio of 2:1 before loading Put it into a transparent plastic bag, put it in the sun for 7 hours, and obtain the bleached m...

example 3

[0025] First take by weighing 2kg of palm fronds and rinse with deionized water for 30min and then put them into a jet mill to pulverize for 2h. The obtained pulverized matter is soaked in 0.5mol / L sodium hydroxide solution and 0.5mol / L hydrochloric acid for 60min successively. Take out the pulverized material after soaking and rinse it with distilled water until the eluent is neutral; then transfer the washed pulverized material into a fermenter immediately, and add cranberry juice and pulverized material with 30% of the total mass of the pulverized material into the tank Grape skins of the same quality are placed in a 40°C incubator after sealing the fermentation tank for 11 days of heat preservation and fermentation. After the fermentation is completed, filter and separate to obtain the filter residue. Mix the filter residue and 30% hydrogen peroxide at a volume ratio of 2:1 before loading Put it into a transparent plastic bag, expose it to the sun for 8 hours, and obtain th...

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Abstract

The invention discloses a preparation method of degradable anticorrosive food packaging paper, belonging to the technical field of food packaging preparation. The preparation method comprises the following steps: carrying out alkali washing and acid soaking on the raw material palm leaves, and bleaching to obtain bleached mixed fibers; mixing montmorillonite and silicon dioxide, and carrying out composite modification on the mixture and castor oil under the action of microbes to obtain an ultraviolet absorbent; and finally, mixing the bleached mixed fibers and ultraviolet absorbent with other raw materials, pulping, and making paper, thereby obtaining the degradable anticorrosive food packaging paper. The palm fibers used as the paper making matrix are modified by the oxidation-resistant-component-rich cranberry juice to enhance the oxidation-resistant effect of the fibers; by utilizing the characteristics of ultraviolet shielding in the montmorillonite and ultraviolet absorption in the silicon dioxide, the montmorillonite and silicon dioxide are mixed and modified by the hydrophobic-ester-group-containing castor oil to increase the hydrophobicity of the mixture; and finally, the hydrophobic mixture and oxidation-resistant fibers are compounded into the packaging paper. The degradable anticorrosive food packaging paper has the preservation effects of water and moisture resistance, ultraviolet oxidation resistance and corrosion resistance, is made from the natural and degradable materials, is harmless to the human body and environment, and thus, has wide application prospects.

Description

technical field [0001] The invention discloses a preparation method of easily degradable and anti-corrosion food packaging paper, which belongs to the technical field of food packaging preparation. Background technique [0002] Paper is a traditional packaging material that can provide good protection for the packaged goods; and is especially suitable for those products that want to get a natural look; it is very useful for those unattractive products such as brown products; Good printability makes it have a unique and beautiful appearance, which is one of the most eye-catching highlights; similarly, the high quality, light weight and variety of paper packaging products make it possible to reduce postal and transportation costs as much as possible. [0003] Food packaging is a large player in the packaging industry, accounting for about 70% of the entire packaging industry. In recent years, the development of food packaging paper has become the consensus of the food and pac...

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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IPC IPC(8): D21H27/10D21H21/14D21H15/10D21H11/12D21H17/68D21H17/28
CPCD21H11/12D21H15/10D21H17/28D21H17/68D21H21/14D21H27/10
Inventor 袁春华张晶薛蕾
Owner LONG LI DE LD INTELLIGENT TECH CORP LTD
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