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Transferring films, multilayered sheets and manufacturing methods thereof

A transfer film and laminate technology, applied in the field of transfer film, can solve the problems of increasing hardness, deterioration of molding performance, and reducing the scratch resistance of the finished film surface, so as to prevent appearance damage, excellent elongation rate, excellent resistance Effect of scratch and moldability

Inactive Publication Date: 2009-07-08
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the sheet produced by the above method, there is a limit to increasing the hardness of polyvinylidene fluoride resin and methyl methacrylate resin contained
Therefore, there is a problem that the scratch resistance of the finished film surface will be reduced
However, in these conventional laminates, while hardness properties such as scratch resistance are improved, moldability is generally deteriorated

Method used

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  • Transferring films, multilayered sheets and manufacturing methods thereof
  • Transferring films, multilayered sheets and manufacturing methods thereof
  • Transferring films, multilayered sheets and manufacturing methods thereof

Examples

Experimental program
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preparation example Construction

[0047] The production method of the present invention may further include a step of laminating a protective film on the transferred surface treatment layer. If a carrier layer is formed on the transfer film, the protective film is laminated after removing the layer. Since a release layer is formed under the carrier layer, the carrier layer can be easily removed. Examples of the method of forming the protective layer after removing the carrier layer include a method of laminating a protective film such as a polyethylene film or a polypropylene film in which a pressure-sensitive adhesive is applied to one side with a lamination roll.

[0048] The invention also relates to injection molded articles comprising a laminate according to the invention.

[0049] As described above, the transfer film of the present invention and a laminate composed of the transfer film are excellent in weather resistance, moldability and scratch resistance. Therefore, the laminated sheet of the presen...

Embodiment 1

[0053] Embodiment 1: the preparation of transfer film (1)

[0054] A silicone resin release agent was applied to a thickness of 0.1 μm on a 50 μm thick polyethylene terephthalate film as a base layer to form a release layer. Then, using a wire bar coater, coating a composition with a thickness of 10 μm for forming a surface treatment layer with a viscosity of 50 cps on the release layer, the composition includes 20 parts by weight of modified acrylic resin, 10 parts by weight of vinyl acetate resin, 0.5 parts by weight of wax, 0.3 parts by weight of silicone resin, 25 parts by weight of toluene, 17 parts by weight of methyl ethyl ketone and 13 parts by weight of ethyl acetate, and then it was heated at 120 ° C Dry at a certain temperature to form a surface treatment layer. On the surface treatment layer thus formed, an acrylamide copolymer resin adhesive was applied to a thickness of 2 μm using a wire bar coater, and dried at 120° C. to prepare a transfer film.

Embodiment 2

[0055] Embodiment 2: the preparation of transfer film (2)

[0056] Except that the viscosity is 50cps, it contains 20 parts by weight of modified acrylic resin, 10 parts by weight of vinyl acetate resin, 5 parts by weight of methyl diisocyanate, 0.5 parts by weight of wax, 0.3 parts by weight of silicone resin, A transfer film was prepared in the same manner as in Example 1 above, except that a composition of 25 parts by weight of toluene, 17 parts by weight of methyl ethyl ketone, and 13 parts by weight of ethyl acetate was used as the composition for forming the surface treatment layer.

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Abstract

The present invention relates to a transferring film for manufacturing a decorative laminate sheet having an excellent weatherability, scratch resistance and moldability, a laminate sheet manufactured therefrom and a method for manufacturing thereof. The transferring film and the laminate sheet of the present invention combine an excellent scratch resistance and thermo- formability, since a surface treatment layer comprising a modified acrylic resin and vinyl acetate is formed thereon, and thus may be effectively applied to protect and decorate plastic molded articles such as household appliances, furniture and automobile parts, especially, molded articles having a three-dimensional complicated shape.

Description

technical field [0001] The present invention relates to a transferring film for producing a decorative multilayer sheet (laminated sheet) having excellent weather resistance, scratch resistance and moldability, a laminated sheet produced from the transfer film and its preparation method. Background technique [0002] The surfaces of plastic parts used in home appliances, furniture, and automotive interior and exterior materials require physical properties such as chemical resistance, abrasion resistance, gloss, image clarity, weather resistance, and advanced appearance patterns. Usually, a method such as spraying is used as a method of protecting and decorating the surface of such plastic moldings. [0003] However, the coating method usually repeats spraying and drying more than 3 times, so there is a problem in implementing this method that it takes a long time. For example, in the automobile manufacturing process, the importance of time, equipment and cost of the sprayi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29D7/01
CPCB29C45/1418B32B27/08B29C2045/14237B32B27/36B29C45/14811B29K2033/08B32B37/025B44C1/165B32B27/30B29K2031/04B29K2715/006B29C33/68B29K2995/002B29K2995/0087B32B27/32B32B2307/584B32B27/28Y10T156/10Y10T428/3154Y10T428/31855Y10T428/31928B29D7/01B32B7/12B32B33/00
Inventor 李康烨金晋佑
Owner LG CHEM LTD
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