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Acrylic acid coating film and its manufacturing method

A manufacturing method and acrylic technology, applied in the field of high-transparency packaging films and coating films, can solve the problems of unsuitable high-speed packaging equipment packaging, composite materials are not easy to degrade, and the thickness of the composite layer is large, and achieve excellent packaging adaptability and excellent low temperature. Heat-sealing performance, the effect of reducing the manufacturing cost

Active Publication Date: 2005-10-26
HAINAN SHINER IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] (1) The thickness of the composite layer of the composite material used in lightweight packaging is too large, resulting in material waste;
[0004] (2) The composite process consumes high energy, and discharges organic solvents that pollute the environment, which is not environmentally friendly;
[0005] (3) This composite material is not easy to degrade, and waste packaging materials will also cause environmental pollution problems;
[0006] (4) Not suitable for packaging on high-speed packaging equipment

Method used

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  • Acrylic acid coating film and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The raw materials used are:

[0035] Substrate: Biaxially oriented polypropylene (BOPP), 18 μm thick.

[0036] Acrylic acid emulsion: 200kg of acrylic acid emulsion formed by copolymerization of 70% acrylic acid and 30% acrylic acid methyl obtained on the market, its solid content is 30%;

[0037] Demineralized water: self-made, 70kg;

[0038] Slip agent: commercially available palm wax slip agent 10kg;

[0039] Anti-blocking agent: commercially available silicon dioxide anti-blocking agent 1kg;

[0040] Primer: Commercially available solvent-based polyurethane.

[0041] Weigh 200kg of acrylic emulsion and add it into a stainless steel container, then add 10kg of palm wax slip agent, 1kg of silicon dioxide anti-adhesive agent and 70kg of soft water in turn while stirring, and stir well to form an acrylic paint, which will be used in the next process.

[0042] Unwind the biaxially oriented polypropylene (BOPP) base material as the base material and perform corona tre...

Embodiment 2

[0045] The raw materials used are:

[0046] Substrate layer: Biaxially oriented polypropylene (BOPP) with a thickness of 200 μm.

[0047] Acrylic acid emulsion: 300kg of acrylic acid emulsion formed by copolymerization of 10% acrylic acid and 90% acrylate methyl obtained on the market, its solid content is 16%;

[0048] Slip agent: commercially available palm wax slip agent 15kg;

[0049] Anti-blocking agent: 1.6kg of commercially available silicon dioxide anti-blocking agent;

[0050] Primer: Commercially available water-based acrylic adhesive.

[0051] Weigh 300kg of acrylic emulsion and add it into a stainless steel container, then add about 15kg of palm wax slip agent and 1.6kg of silicon dioxide anti-sticking agent in sequence while stirring, and wait for the next process after stirring evenly.

[0052] The biaxially oriented polypropylene (BOPP) substrate used as the substrate is unwound and then corona treated, and the primer is pre-coated, and the coating amount of ...

Embodiment 3

[0054] The raw materials used are:

[0055] Substrate layer: PET film with a thickness of 10 μm.

[0056] Acrylic emulsion: 100kg of acrylic emulsion copolymerized by 80% acrylic acid and 20% ethyl acrylate, with a solid content of 45%;

[0057] Palm wax slippery agent 40kg, commercially available;

[0058] Silica anti-sticking agent 10kg, commercially available;

[0059] Soft water 250kg.

[0060] Primer: solvent-based polyurethane, commercially available.

[0061] Weigh 100kg of acrylic emulsion and add it to a stainless steel container, then add about 40kg of slip agent, 10kg of anti-adhesive agent and 250kg of soft water while stirring, and stir well to form an acrylic paint for use in the next process.

[0062] Corona treatment is carried out after unwinding the PET film as the substrate; pre-coating solvent-based polyurethane primer on one side of the substrate, and the coating amount is 0.8g / m 2 , and then evenly transfer the acrylic paint to the substrate film coa...

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Abstract

An acrylic acid coated film is composed of a substrate layer, a coated acrylic paint layer and a sandwich layer between the first two layers. Its preparing process includes such steps as preparing acrylic paint from acrylic emulsion, softened water, smoothing agent and detackifier, coating it on the substrate and baking.

Description

technical field [0001] The invention relates to a coating film, which belongs to the field of new environment-friendly polymer materials, and is especially suitable for low-temperature heat-sealing, and improves the adhesion of printing ink, and is suitable for high-transparency packaging films printed with water-based inks, and can be applied to low-temperature heat-sealing High-speed automatic packaging (such as biscuits, cakes and other foods), as well as decorative packaging of cosmetics. Background technique [0002] At present, the packaging of small items (such as small snacks) on the market is often dominated by composite materials. This type of material is widely used, but it is obviously unreasonable, mainly reflected in: [0003] (1) The thickness of the composite layer of the composite material used in lightweight packaging is too large, resulting in material waste; [0004] (2) The composite process consumes high energy, and discharges organic solvents that pol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B7/04
Inventor 谢文波王恩飞
Owner HAINAN SHINER IND
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