Nano coating preservation packaging material special for traditional red egg, preparation method and coating method

A technology for coating fresh-keeping and packaging materials, which is applied in the direction of livestock slaughtering table/slaughtering support, etc., can solve the problems of high packaging cost, low efficiency, complex production process, etc., to reduce labor costs, improve production efficiency, and simple production process. Effect

Inactive Publication Date: 2014-03-05
CHANGSHU YIHAO FOOD PACKAGING MATERIAL TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an environment-friendly composite nano-coated fresh-keeping packaging material specially used for traditional red eggs and its preparation and coating method, so as to solve the complicated and inefficient production process of traditional red eggs using red plastic film vacuum packaging. , high packaging costs and other issues, so that traditional red eggs can achieve high efficiency, energy saving and emission reduction, green and low-carbon large-scale automated production methods on the basis of maintaining traditional characteristics

Method used

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  • Nano coating preservation packaging material special for traditional red egg, preparation method and coating method
  • Nano coating preservation packaging material special for traditional red egg, preparation method and coating method
  • Nano coating preservation packaging material special for traditional red egg, preparation method and coating method

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Effect test

Embodiment 1

[0033] According to the special nano-coated film fresh-keeping packaging material for traditional red eggs of the present invention, its preparation method is: a certain amount of nano-TiO 2 , nano-SiO 2 Add it to 50g / L PVA aqueous solution according to the proportion, place it in an ultrasonic water bath, and ultrasonicate it for 15-20 minutes under the condition of power density 70-80W / L to make nano-TiO 2 and SiO 2 Uniformly disperse in polyvinyl alcohol aqueous solution, heat and stir the mixed solution until the temperature reaches 85-95°C, add a certain amount of glutaraldehyde into the above-mentioned nanomaterial-polyvinyl alcohol mixed solution, keep stirring for 40-50 minutes; mix 1.2g / L acid red (azorubin) is added to the above-mentioned glutaraldehyde-nanomaterial-polyvinyl alcohol solution, and stirred at constant temperature for 10-20 minutes to prepare a composite nano-coating material.

[0034] Among them, nano-TiO 2 , nano-SiO 2 The addition amount of glu...

Embodiment 2

[0043] Nano TiO 2 , nano-SiO 2 Add the ratio of 0.1g / L and 0.2g / L to 40g / L PVA aqueous solution, put it in an ultrasonic water bath, and ultrasonicate for 15 minutes at a power density of 80W / L to make nano-TiO 2 and nano-SiO 2 Uniformly disperse in polyvinyl alcohol aqueous solution; heat and stir the mixed solution until the temperature reaches 88°C, add glutaraldehyde in the ratio of 3g / L to the above-mentioned nanomaterial-polyvinyl alcohol mixed solution, keep stirring for 45 minutes; mix 1.2g / L Add L acid red (azorubin) into the above-mentioned glutaraldehyde-nano material-polyvinyl alcohol solution, and stir at constant temperature for 15 minutes to prepare a composite nano-coating material. The film-forming performance of the composite coating fresh-keeping packaging material was tested, and the moisture permeability was found to be 6.077 g*m -2 *h -1 , The diameter of the inhibition zone is 20.14mm.

Embodiment 3

[0045] Nano TiO 2 , nano-SiO 2 Do not add 0.4g / L, 0.6g / L to 70g / L PVA aqueous solution, put it in an ultrasonic water bath, and ultrasonicate for 15 minutes under the condition of power density 80W / L to make nano-TiO 2 and nano-SiO 2 Uniformly disperse in polyvinyl alcohol aqueous solution; heat and stir the mixed solution until the temperature reaches 88°C, add glutaraldehyde into the above-mentioned nanomaterial-polyvinyl alcohol mixed solution at a ratio of 5g / L, keep stirring for 45 minutes; mix 1.2g / L Add L acid red (azorubin) into the above-mentioned glutaraldehyde-nano material-polyvinyl alcohol solution, and stir at constant temperature for 15 minutes to prepare a composite nano-coating material. The film-forming performance of the composite coating fresh-keeping packaging material was tested, and the moisture permeability was found to be 4.775 g*m -2 *h -1 , The diameter of the inhibition zone is 21.43mm.

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Abstract

The invention discloses a nano coating preservation packaging material special for traditional red eggs, a preparation method and a coating method thereof, belonging to the field of egg product preservation packaging. The nano coating preservation packaging material is formed through reactiing and compounding of the following components: 40-70 g / L of polyvinyl alcohol, 3-5 g / L of glutaraldehyde, 1.0-1.5 g / L of acid red, 0.1-0.4 g / L of nano TiO2 and 0.2-0.6 g / L of nano SiO2, in an aqueous solution. The preparation method for the nano coating preservation packaging material comprises the following steps of: adding the nano TiO2 and the SiO2 into a PVA (polyvinyl alcohol) aqueous solution to mix ultrasonically, and adding the glutaraldehyde to carry out constant-temperature cross-linking reaction; and adding the acid red to stir at a constant temperature, thereby obtaining the composite nano coating material. The composite nano coating preservation packaging material is thermally coated on the surfaces of boiled eggs, so that the traditional red eggs are obtained after coating formation. According to the nano coating preservation packaging material, the preparation method and the coating method, disclosed by the invention, the traditional production technology of the red eggs can be simplified, the use amount of the packaging material is obviously reduced, mechanized operations are realized, and the safety quality of the red egg products can be improved.

Description

technical field [0001] The invention belongs to the field of fresh-keeping packaging for food, and relates to a film-coated fresh-keeping packaging material for egg products and a preparation method and application thereof, in particular to a special nano-coated fresh-keeping packaging material for traditional red eggs, and a preparation and coating method thereof. Background technique [0002] China is rich in poultry egg resources and diverse in variety, and is the largest producer and consumer of poultry eggs in the world. Red eggs with traditional festive symbolic meaning have a long history and are often used in various festive occasions such as marriage and childbirth. Traditional red eggs are prepared by manually applying red dye to the surface of the eggshell. The production efficiency is low, and the red dye used has certain safety hazards, which affects the edible and commodity value of the product. At present, commercially available Red Happiness Eggs are general...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A22B5/06
Inventor 章建浩刘桂超王佳媚姚毅
Owner CHANGSHU YIHAO FOOD PACKAGING MATERIAL TECH
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