Nano antibacterial preservative film for fruits/vegetables and preparation method thereof

A kind of preservative film and nanotechnology, which is applied in the field of fruit and vegetable nano antibacterial preservative film and its preparation, can solve the problems of improvement and safety impact, and achieve the effects of good toughness, low environmental pollution, and increased lifespan

Inactive Publication Date: 2017-10-13
HEFEI ZHENXUN LOW TEMPERATURE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention provides a fresh-keeping film for agricultural products, which has a wide range of raw materials, low cost, broad market prospects, and improves the air permeability of traditional fresh-keeping; but the raw materials used in the invention contain polyvinyl chloride and phthalates. Dibutyl formate, which has a certain impact on the safety of the human body, and the mechanical strength, air permeability and moisture permeability are further improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A kind of fruit and vegetable nano antibacterial fresh-keeping film of the present embodiment comprises the raw material of following weight portion:

[0028] 20 parts of linear low density polyethylene, 6 parts of low density polyethylene, 8 parts of polyvinylidene chloride, 3 parts of acetic acid, 5 parts of gelatin, 3 parts of nano silicon dioxide, 6 parts of nano molecular sieve, 1 part of silver powder, 1 part of titanium dioxide 1 part, 2 parts of zinc oxide, 0.5 part of carboxymethyl cellulose, 0.5 part of paraffin, 1 part of antifogging agent, 0.1 part of antibacterial agent, 3 parts of plasticizer, and 1 part of coupling agent.

[0029] In this embodiment, the particle size of nano-silica and nano-molecular sieve is 40nm; the mesh number of silver powder, titanium dioxide and zinc oxide is 800 mesh.

[0030] In this embodiment, the antifogging agent is a mixture of xylitol ester, sorbitol monopalmitate, and stearic acid monoglyceride, and the ratio of the three...

Embodiment 2

[0042] A kind of fruit and vegetable nano antibacterial fresh-keeping film of the present embodiment comprises the raw material of following weight portion:

[0043] 23 parts of linear low density polyethylene, 8 parts of low density polyethylene, 10 parts of polyvinylidene chloride, 4 parts of acetic acid, 6 parts of gelatin, 4 parts of nano silicon dioxide, 7 parts of nano molecular sieve, 1.5 parts of silver powder, 1.5 parts of titanium dioxide 1 part, 3 parts of zinc oxide, 0.7 parts of carboxymethyl cellulose, 1 part of paraffin, 1.5 parts of antifogging agent, 0.4 parts of antibacterial agent, 3.5 parts of plasticizer, and 2 parts of coupling agent.

[0044] In this embodiment, the particle size of nano-silica and nano-molecular sieve is 40nm; the mesh number of silver powder, titanium dioxide and zinc oxide is 800 mesh.

[0045] In this embodiment, the antifogging agent is a mixture of xylitol ester, sorbitol monopalmitate, and stearic acid monoglyceride, and the ratio...

Embodiment 3

[0057] A kind of fruit and vegetable nano antibacterial fresh-keeping film of the present embodiment comprises the raw material of following weight portion:

[0058] 25 parts of linear low density polyethylene, 10 parts of low density polyethylene, 11 parts of polyvinylidene chloride, 5 parts of acetic acid, 7 parts of gelatin, 5 parts of nano silicon dioxide, 8 parts of nano molecular sieve, 2 parts of silver powder, 2 parts of titanium dioxide , 4 parts of zinc oxide, 0.8 parts of carboxymethyl cellulose, 1.5 parts of paraffin, 2 parts of antifogging agent, 0.7 parts of antibacterial agent, 4 parts of plasticizer, and 3 parts of coupling agent.

[0059] In this embodiment, the particle size of nano-silica and nano-molecular sieve is 40nm; the mesh number of silver powder, titanium dioxide and zinc oxide is 800 mesh.

[0060] In this embodiment, the antifogging agent is a mixture of xylitol ester, sorbitol monopalmitate, and stearic acid monoglyceride, and the ratio of the th...

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Abstract

The invention discloses a nano antibacterial preservative film for fruits / vegetables, and belongs to the technical field of preservative films. The nano antibacterial preservative film comprises the following raw materials in parts by weight: 20-25 parts of linear low-density polyethylene, 6-10 parts of low-density polyethylene, 8-11 parts of polyvinylidene chloride, 3-5 parts of acetic acid, 5-7 parts of gelatin, 3-5 parts of nano silicon dioxide, 6-8 parts of nano molecular sieve, 1-2 parts of silver powder, 1-2 parts of titanium white powder, 2-4 parts of zinc oxide, 0.5-0.8 part of carboxymethyl cellulose, 0.5-1.5 parts of paraffin, 1-2 parts of antifogging agent, 0.1-0.7 part of antimicrobial agent, 3-4 parts of plasticizer and 1-3 parts of coupling agent. The invention also discloses a preparation method of the nano antibacterial preservative film for fruits / vegetables. The nano antibacterial preservative film is environmentally friendly, excellent in mechanical property and favorable in air and moisture permeability, causes less pollution, and has excellent antibacterial and preservative capabilities.

Description

technical field [0001] The invention relates to the technical field of fresh-keeping film, in particular to a nano-antibacterial fresh-keeping film for fruits and vegetables and a preparation method thereof. Background technique [0002] Plastic wrap is a kind of plastic packaging product, usually made of ethylene as the masterbatch through polymerization reaction, mainly used in microwave oven food heating, refrigerator food preservation, fresh and cooked food packaging and other occasions, in family life, supermarkets, hotels and restaurants It is widely used in the field of industrial food packaging. According to the different materials used and the addition of plasticizers, plastic wrap is divided into various types, which can be applied to different occasions. Preservative film has been favored by people for its convenience, economy and attractive appearance. However, due to the general addition of plasticizers in the production process, the impact of plastic wrap on ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/06C08L27/08C08L89/00C08L1/28C08L91/06C08K13/04C08K3/36C08K3/08C08K3/22C08K5/11C08K7/26
CPCC08L23/0815C08J5/18C08J2323/08C08J2423/06C08K2003/0806C08K2003/2241C08K2003/2296C08K2201/003C08K2201/011C08K2201/014C08L2201/02C08L2201/08C08L2203/16C08L2205/035C08L2207/066C08L23/06C08L27/08C08L89/00C08L1/286C08L91/06C08K13/04C08K3/36C08K3/08C08K3/22C08K5/11C08K7/26
Inventor 周青松
Owner HEFEI ZHENXUN LOW TEMPERATURE TECH CO LTD
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