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A recyclable pet release material

A release material and release agent technology, applied in the direction of film/sheet release liner, etc., can solve the problems of environmental pollution, release material difficult to recycle, etc., achieve high bonding strength, solve the problem of unrecyclable, The effect of not easy to separate

Active Publication Date: 2022-07-05
GUANGZHOU THE BOND CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a recyclable PET release material for the existing release material that is difficult to recycle and cause serious environmental pollution.

Method used

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  • A recyclable pet release material
  • A recyclable pet release material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A recyclable PET release material such as figure 1 As shown, from top to bottom are the release agent coating 1, the low-density material layer 2, the special adhesive coating 3, and the PET layer 4; the release agent coating uses silicone oil, and the low-density material layer uses a density of 0.95g / cm 3 , LDPE material with a thickness of 16μm, the special adhesive coating adopts the density of 0.96g / cm3 as washable glue, and the PET layer adopts the density of 1.4g / cm3 3 , PET material with a thickness of 50 μm.

[0030] The release agent coating 1 has the function of anti-stick and isolation.

[0031] The low-density material layer 2 has the effect of separating the release agent coating 1 from the PET layer;

[0032] The special adhesive coating 3 has high bonding strength, and is easy to fall off from the surface of the PET layer when washed with alkaline water or warm water, and will not remain on the surface of the PET layer;

[0033] The PET layer 4 occu...

Embodiment 2

[0037] A recyclable PET release material such as figure 1 As shown, from top to bottom are the release agent coating 1, the low-density material layer 2, the special adhesive coating 3, and the PET layer 4; the release agent coating uses silicone oil, and the low-density material layer uses a density of 0.91g / cm 3 , PE material with a thickness of 10 μm, and a special adhesive coating with a density of 0.9 g / cm 3 Heat shrinkable LDPE material, PET layer with a density of 1.2g / cm 3 , PET material with a thickness of 120 μm.

[0038] The release agent coating 1 has the function of anti-stick and isolation.

[0039] The low-density material layer 2 has the effect of separating the release agent coating 1 from the PET layer;

[0040] The special adhesive coating 3 has high bonding strength, and is easy to fall off from the surface of the PET layer when washed with alkaline water or warm water, and will not remain on the surface of the PET layer;

[0041] The PET layer 4 occu...

Embodiment 3

[0043] A recyclable PET release material such as figure 1 As shown, from top to bottom are the release agent coating 1, the low-density material layer 2, the special adhesive coating 3, and the PET layer 4; the release agent coating uses silicone oil, and the low-density material layer uses a density of 0.99g / cm 3 , LLDPE material with thickness of 12μm, special adhesive coating with density of 0.9g / cm 3 Heat shrinkable LLDPE layer, PET layer with a density of 1.1g / cm 3 , PET material with a thickness of 125 μm.

[0044] The release agent coating 1 has the function of anti-stick and isolation.

[0045] The low-density material layer 2 has the effect of separating the release agent coating 1 from the PET layer;

[0046] The special adhesive coating 3 has high bonding strength, and is easy to fall off from the surface of the PET layer when washed with alkaline water or warm water, and will not remain on the surface of the PET layer;

[0047] The PET layer 4 occupies the larg...

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Abstract

The invention discloses a recyclable PET release material, which is formed by laminating a release agent coating, a low-density material layer, a special adhesive coating and a PET layer in sequence. The recyclable PET release material has high bonding strength and is not easy to fall off during use. During the recycling process, it is easy to recycle the PET layer by stirring in warm or alkaline water, without the use of chemical reagents, special bonding coating and PET film. Separation, because the low-density material layer is made of low-density material and floats on the surface of the water, while PET has a high density and sinks to the bottom of the water, the PET film can be cleaned and completely recycled by washing and density separation. The recyclable PET release material of the invention is convenient to use, environmentally friendly and non-toxic, can be applied to the anti-stick isolation of the bottom layer of the adhesive, and has wide application prospects.

Description

technical field [0001] The invention belongs to the technical field of release materials, and more particularly, relates to a recyclable PET release material. Background technique [0002] According to Alexander Watson Association (AWA) "2015 Global Release Liner Market Latest Survey Report", Asia consumed more than 1 / 3 of the global release liner last year. In 2014, the global consumption of release paper totaled 43,984 million square meters, of which the Asian market accounted for 37%, more than the European and North American markets each accounted for 28%. Emerging economies in South America, Africa and the Middle East share the remaining 7%. The report also pointed out that pressure-sensitive adhesive label materials are still the high-quality terminal for paper and film release paper, with a growth rate of 4% in 2014, while the global pressure-sensitive tape market is showing a thriving scene, with a growth rate of about 9.7%. This means that the consumption of relea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J7/40
Inventor 叶永前吴立霞
Owner GUANGZHOU THE BOND CHEM
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