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Transfer mold releasing film and method for manufacturing mat-shaped molded body

A technology of release film and formed body, which is applied in chemical instruments and methods, photoplate making process of patterned surface, optics, etc., can solve problems such as insufficient, low gloss, unimagined use of anti-glare film, etc., and achieve operation Excellent performance and high productivity

Pending Publication Date: 2019-12-27
DAICEL CHEM IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, in this document, the use of an antiglare film in transfer printing is not envisaged
Furthermore, even if it is assumed to be used as a release film for transfer, the low gloss is not sufficient, and a gloss of less than 5% cannot be achieved.

Method used

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  • Transfer mold releasing film and method for manufacturing mat-shaped molded body

Examples

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Effect test

Embodiment 1

[0112] The liquid compositions shown in Table 1 were prepared, casted onto a PET film using a wire bar #18, and then left in an oven at 80° C. for 1 minute to evaporate the solvent, thereby forming an uneven layer with a thickness of about 8 μm. Then, the uneven layer was irradiated with ultraviolet rays from a high-pressure mercury lamp for about 5 seconds to perform a UV curing treatment to obtain a release film for transfer.

Embodiment 2

[0114] The liquid compositions shown in Table 1 were prepared, casted onto a PET film using a wire rod #20, and then left in an oven at 80° C. for 1 minute to evaporate the solvent and form a concave-convex layer with a thickness of about 9 μm. Then, the uneven layer was irradiated with ultraviolet rays from a high-pressure mercury lamp for about 5 seconds to perform a UV curing treatment to obtain a release film for transfer.

[0115] [Table 1]

[0116]

[0117] After measuring the 60° glossiness and the arithmetic average surface roughness (Ra) of the transfer surface of the obtained transfer release film, it was subjected to a transfer test, and after evaluating the peelability, the 60° glossiness of the transferred surface was measured. . The results are shown in Table 2.

[0118] [Table 2]

[0119] Example 1 Example 2 60° Gloss of Release Film for Transfer 3.0 3.0 60° Gloss of Transferred Body 3.0 3.0 Ra of release film for transfer ...

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Abstract

The present invention addresses the problem of manufacturing a mat-shaped molded body by forming a concavo-convex shape that is an inverted shape of a transfer surface on a surface to be transferred of a molded body using a transfer mold releasing film in which a concavo-convex layer that does not contain fine particles of 1 [mu]m or more and includes the transfer surface having an arithmetic average roughness Ra of 0.1 to 2 [mu]m and 60-degree gloss of less than 5% is formed on at least one surface of a base material layer. The concavo-convex layer may be a cured product of a curable composition containing one or more types of polymer components and one or more types of curable resin precursor components. At least two components selected from the polymer components and the curable resin precursor components may be phase-separated from each other by wet spinodal decomposition. The transfer mold releasing film may have a haze of 50% or more. The mat-shaped molded body may be an electromagnetic wave shield film. When a concavo-convex shape is transferred using the transfer mold releasing film, a mat-shaped molded body having a low gloss can be manufactured.

Description

technical field [0001] The present invention relates to a release film for transfer used for producing a matte molded article such as an electromagnetic shielding film, and a method for producing a matte molded article using the release film. Background technique [0002] An electromagnetic wave shielding film is known as a low-gloss molded article (matte molded article) that is adjusted to a matte (matte) finish by forming unevenness on the surface to lower the glossiness. For example, in mobile electronic devices such as smartphones and tablet PCs, electromagnetic wave shielding films are also widely used as films for shielding electromagnetic waves, and generally have an electromagnetic wave shielding layer formed of metal, etc., and a protective layer (hard coat layer) formed of cured resin, etc. layer). In addition, in the above applications, designability is often required for electromagnetic wave shielding films, and electromagnetic wave shielding films with reduced ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B3/30B32B7/025H05K9/00
CPCB29C45/14827B29K2995/0011B29C45/14811B32B3/30B32B7/02C08J5/18G03F7/0002C08L33/00C08L1/08H05K9/00B32B23/20B32B27/283B32B27/308B32B27/40B32B2250/02B32B2250/03B32B2250/24B32B2307/538B32B2307/748
Inventor 菅原庆峰宇佐大辅
Owner DAICEL CHEM IND LTD
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