Cooking-resistant polyvinylidene chloride coating film and preparation method thereof

A technology of polyvinylidene chloride and its manufacturing method, which is applied in the direction of chemical instruments and methods, devices for coating liquid on the surface, coatings, etc., and can solve the problems of opaque packaging, short shelf life, and no high-temperature disinfection and sterilization

Active Publication Date: 2012-03-21
HAINAN SHINER IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 2. The food provided has not been sterilized by high temperature, and the shelf life is not long
[0005] 3. The packaging is opaque, and the packaged objects cannot be seen

Method used

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  • Cooking-resistant polyvinylidene chloride coating film and preparation method thereof
  • Cooking-resistant polyvinylidene chloride coating film and preparation method thereof
  • Cooking-resistant polyvinylidene chloride coating film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Substrate: Biaxially oriented polypropylene (BOPP), 19 μm thick.

[0032] Primer: commercially available polyurethane adhesive

[0033] Polyvinylidene chloride emulsion: commercially available polyvinylidene chloride emulsion

[0034] Demineralized water: homemade 30kg

[0035] Slip agent: commercially available palm wax slip agent 10kg

[0036] Anti-blocking agent: commercially available silica anti-blocking agent 1kg

[0037] Add 50 kg of 50% polyvinylidene chloride emulsion into a 100L reactor, start the reactor and stir at a stirring speed of 120 rpm, slowly raise the temperature, and control the temperature at 50°C. Accurately weigh 250 grams of tetraethylenepentamine, dissolve it in 200ml of deionized water, place it in a 500ml dropper, wait for the temperature of the reaction kettle to become constant, start to add dropwise, the drop rate is 8.6g / min, and keep a constant temperature during the dropwise addition process . After the dropwise addition, the stir...

Embodiment 2

[0044] Substrate: biaxially oriented polyester (BOPET), thickness 12 μm.

[0045] Primer: commercially available polyurethane adhesive

[0046] Polyvinylidene Chloride Emulsion:: Commercially Available Polyvinylidene Chloride Emulsion

[0047] Demineralized water: homemade 25kg

[0048] Slip agent: commercially available palm wax slip agent 9kg

[0049] Anti-blocking agent: commercially available silica anti-blocking agent 1kg

[0050] Add 40 kg of 50% polyvinylidene chloride emulsion into a 100L reactor, start the reactor and stir at a stirring speed of 100 rpm, slowly raise the temperature, and control the temperature at 45°C. Accurately weigh 200 grams of tetraethylenepentamine, dissolve it in 300ml of deionized water, place it in a 1000ml dropper, wait until the temperature of the reaction kettle tends to be constant, start to add dropwise, the drop rate is 9.5g / min, and keep a constant temperature during the dropwise addition process . After the dropwise addition, th...

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Abstract

The invention relates to a cooking-resistant polyvinylidene chloride coating film and a preparation method thereof. The cooking-resistant polyvinylidene chloride coating film comprises a substrate and a coating layer on the surface of the substrate, wherein a primer layer is formed between the coating layer and the substrate; the coating layer is a modified polyvinylidene chloride coating which is formed by coating a cooking-resistant polyvinylidene chloride emulsion on the surface of the primer layer and drying; the cooking-resistant polyvinylidene chloride coating film is prepared from the following raw materials in parts by weight: 25-95 parts of polyvinylidene chloride blending emulsion, 0-70 parts of softened water, 0-15 parts of slip agent and 0.1-5 parts of adhesive; and the polyvinylidene chloride blending emulsion is prepared form the following raw materials in parts by weight: 88-98.5 parts of polyvinylidene chloride emulsion and 1.5-12 parts of tetraethylenepentamine. The coating film has the advantages of cooking resistance, transparency, environment friendliness, safety, innocuity and low cost and can be used for packaging foods directly through compounding; the foods and a packaging bag are cooked together and subjected to high-temperature disinfection, and a customer can directly eat after opening the packaging bag.

Description

Technical field [0001] The invention relates to a retort-resistant polyvinylidene chloride coating film and a manufacturing method thereof, belonging to the field of new polymer materials. Background technique [0002] In today's meat processing, it is the mainstream to provide consumers with fresh or frozen meat. The following shortcomings are common in this food packaging application: [0003] 1. The food provided must be cooked by the consumer before use, which is a waste of time. [0004] 2. The food provided has not been sterilized by high temperature, and the shelf life is not long. [0005] 3. The packaging is opaque, and the packaged objects cannot be seen. [0006] With the improvement of people's quality of life, consumers pay more attention to food safety and life rhythm, and the development of environmentally friendly packaging materials is the mainstream trend today. Contents of the invention [0007] In view of the above-mentioned problems existing in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B33/00B32B27/30C09D127/08C09D7/12B05D7/04B05D3/02
Inventor 王恩飞
Owner HAINAN SHINER IND
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