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Reusable polyurethane transfer film and preparation method thereof

A transfer film and polyurethane technology, applied in the field of polyurethane transfer film and its preparation, can solve the problems of polyurethane residue and other problems

Pending Publication Date: 2022-04-22
GUANGDONG DECRO PACKAGE FILMS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Based on this, the purpose of the present invention is to provide a reusable polyurethane transfer film, which improves the problem that some polyurethane remains on the surface of the film when the existing polypropylene film transfers polyurethane, and the film can be used repeatedly.

Method used

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  • Reusable polyurethane transfer film and preparation method thereof
  • Reusable polyurethane transfer film and preparation method thereof
  • Reusable polyurethane transfer film and preparation method thereof

Examples

Experimental program
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Embodiment 1

[0048] The film of this embodiment includes a layer of optical surface transfer layer 1 and a layer of support layer 2, wherein the optical surface transfer layer 1 is arranged on one side of the support layer 2, the side is the upper side or the lower side, the specific structure like figure 1 shown.

[0049] The composition of smooth transfer layer 1 is: 99.9wt% polymethylpentene copolymer (melt index is 4.6g / 10min, test conditions: melting temperature is 230°C, load weight is 2.16Kg), 0.1wt% synthetic silica , wherein the average particle size of synthetic silica is 4 μm. The polymethylpentene copolymer is the TPX produced by Mitsui Chemicals TM Polymethylpentene copolymer (the content of 4-methyl-1-pentene in the polymethylpentene copolymer is 95-100wt%, and its surface tension is 24mN / m).

[0050] Support layer 2 composition is: 97.2wt% homopolypropylene (isotacticity is 96%, melt index is 2.8g / 10min, melt index test condition: melting temperature is 230 ℃, load weight...

Embodiment 2

[0055] The film of this embodiment includes one layer of matt transfer layer 3 and one layer of support layer 2, wherein said matt transfer layer 3 is arranged on one side of support layer 2, said side is the upper side or the lower side, and the specific structure is as follows figure 2 shown.

[0056] The composition of the matting transfer layer 3 is: 95wt% polymethylpentene copolymer (melt index is 4.6g / 10min, test conditions: melting temperature is 230°C, load weight is 2.16Kg), 5wt% synthetic silica, wherein The average particle diameter of silica is 4 μm. The polymethylpentene copolymer is the TPX produced by Mitsui Chemicals TM Polymethylpentene copolymer (the content of 4-methyl-1-pentene in the polymethylpentene copolymer is 95-100wt%, and its surface tension is 24mN / m).

[0057] Supporting layer 2 composition is: 97.2wt% homopolypropylene (isotacticity is 96%, melt index is 2.8g / 10min, melt index test condition: melting temperature is 230 ℃, load weight is 2.16Kg...

Embodiment 3

[0061] The film of this embodiment includes one layer of matt transfer layer 3 and one layer of support layer 2, wherein said matt transfer layer 3 is arranged on one side of support layer 2, said side is the upper side or the lower side, and the specific structure is as follows figure 2 shown.

[0062] The composition of the matting transfer layer 3 is: 85wt% polymethylpentene copolymer (melt index is 4.6g / 10min, test conditions: melting temperature is 230°C, load weight is 2.16Kg), 15wt% synthetic silica, wherein The average particle diameter of silica is 4 μm. The polymethylpentene copolymer is the TPX produced by Mitsui Chemicals TM Polymethylpentene copolymer (the content of 4-methyl-1-pentene in the polymethylpentene copolymer is 95-100wt%, and its surface tension is 24mN / m).

[0063] Supporting layer 2 composition is: 97.2wt% homopolypropylene (isotacticity is 96%, melt index is 2.8g / 10min, melt index test condition: melting temperature is 230 ℃, load weight is 2.16K...

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Abstract

The invention relates to a reusable polyurethane transfer film and a preparation method thereof. A reusable polyurethane transfer film is characterized by comprising at least one transfer layer and a supporting layer, the transfer layer is arranged on one side of the supporting layer, the transfer layer comprises a polymethylpentene copolymer, the surface tension of the transfer layer is smaller than 29 mN / m, the supporting layer comprises a slipping agent, and the slipping agent is arranged on one side of the supporting layer. The invention also discloses a preparation method of the reusable polyurethane transfer film. The polyurethane transfer film capable of being repeatedly used can replace a traditional silicon-coated transfer film or transfer paper, firstly, a silicone oil coating procedure is omitted, VOC emission of the silicon coating procedure is reduced, material waste is reduced, and procedures are saved; then, the problem that the polypropylene film is not transferred cleanly is solved, and the situation that a polyurethane coating is left on the surface of the film, consequently, the coating is damaged and the decorative effect is affected is reduced; in addition, the thin film can be better reused, so that the thin film is easier to popularize.

Description

technical field [0001] The invention relates to a film for coating transfer, in particular to a reusable polyurethane transfer film and a preparation method thereof. Background technique [0002] Polyurethane coating is used for surface decoration of objects. It has excellent properties such as low film-forming temperature, strong adhesion, good wear resistance, high hardness and good chemical resistance. It is widely used in surface decoration of cloth, leather and plastic sheets. . In order to flexibly use polyurethane coatings and composite decorations on the surface of various objects, polyurethane coatings are generally coated on the surface of releasable films or papers by coating, and then the polyurethane coatings are combined with the decorated objects The surface of the object is compounded, and finally the plastic film is torn off from the surface of the decorated object. In this processing method, the general process in the industry is to use a release film or ...

Claims

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Application Information

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IPC IPC(8): B32B27/32B32B7/12B32B27/08B32B27/18C08L23/20C08K3/36C08L23/12C08L57/02C08K5/103C08K5/20C08J5/18B29D7/01
CPCB32B27/32B32B27/18B32B27/08B32B7/12C08J5/18B29D7/01C08J2323/20C08K3/36C08J2323/12C08J2457/02C08K5/103C08K5/20Y02W30/80
Inventor 胡卓荣潘敬洪何文俊徐文树
Owner GUANGDONG DECRO PACKAGE FILMS
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