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Adhesive sheet and method of edging operation

A processing method and technology of adhesive film, which are applied in chemical instruments and methods, metal processing equipment, machine tools suitable for grinding the edges of workpieces, etc. The effect of shaft deviation prevention, excellent adhesion, simplified process

Active Publication Date: 2009-05-27
HOYA LENS MFG PHILIPPINES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, when preparing two kinds of tapes, the lens locking tape and the adhesive tape with strong adhesive force, in order to prevent the axis deviation of the spectacle lens during the edging process, the work steps in the edging process of the spectacle lens are increased. , which makes the edging process performed by optical shops, etc. complicated

Method used

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  • Adhesive sheet and method of edging operation
  • Adhesive sheet and method of edging operation
  • Adhesive sheet and method of edging operation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0088] The following substances were blended at the following ratio: 100 parts by weight of acrylic adhesive SZ-2647 (Nippon Carbide Industry Co., Ltd. (Nippon Carbide Industry Co., Ltd.) Manufactured by Japan Ka-Bide Industry Co., Ltd.); as a small amount of acrylic adhesive SZ-2647 (for example, about 3 parts by weight relative to 100 parts by weight of a polymer mainly composed of (meth)acrylate) Compatible tack-imparting resin, 5 parts by weight of YS Polysta-T145 (trade name) (manufactured by Yasuhara Chemical Co., Ltd.); and 3 parts by weight of Coronet L45 as a solid content as a crosslinking agent (trade name) (manufactured by Nippon Polyurethane Industry Co., Ltd.), after mixing, it was diluted with toluene until the solid content became 20%, to prepare a first coating liquid. Apply the first coating liquid on the release surface of a 50 μm thick biaxially stretched polyester film that has been subjected to a silicone-based release treatment on one side, and dry it at...

Embodiment 2

[0093] The following substances are blended in the following proportions: 100 parts by weight of acrylic adhesive SZ-2647 as a solid content of a polymer mainly composed of (meth)acrylate; 7 parts by weight of KE311 (manufactured by Arakawa Chemical Industry Co., Ltd.) of an incompatible adhesion-imparting resin of SZ-2647; The first coating solution was prepared by diluting until the solid content became 20%. In addition, except for the first coating liquid, the double-sided adhesive sheet 2 for fixing spectacle lenses described in Example 1 has the same structure, and is obtained in the same manufacturing method as the first covering layer 2b1 and the second covering layer 2b1. Adhesive sheets 2 for fixing spectacle lenses having a structure of a release film are laminated on the layer 2b2, respectively.

Embodiment 3

[0095] The following substances were blended in the following proportions: as a polymer mainly composed of (meth)acrylate, 100 parts by weight of acrylic adhesive SZ-2647 as a solid content; Parts by weight of YS Polyster-T145; and 3 parts by weight of Coronet-L45 as a cross-linking agent, which is a solid content, after blending, diluted with toluene until the solid content becomes 20%, thereby making the first coating liquid. In addition, except for the first coating liquid, the double-sided adhesive sheet for fixing spectacle lenses described in Example 1 has the same structure, and the first coating layer 2b1 and the second coating layer 2b2 are obtained by the same manufacturing method. Adhesive sheets 2 for fixing spectacle lenses with a release film laminated on them.

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Abstract

In pressure sensitive adhesive sheet (2), first coating layer (2b1) as a pressure sensitive adhesive layer is formed at a portion opposed to a lens surface. The pressure sensitive adhesive layer consists of a pressure sensitive adhesive composition containing a polymer composed mainly of a (meth)acrylic ester, a pressure sensitive adhesiveness imparting resin and a crosslinking agent.Thus, by virtue of excellent pressure sensitive adhesiveness thereof, a high axial deviation preventing effect can be exerted even on a lens of low friction coefficient having been surface-treated with a fluorosilane compound, etc.

Description

technical field [0001] The present invention relates to an adhesive sheet disposed between at least one of a pair of chucks of an edging machine and a lens, and an edging method using the adhesive sheet. Background technique [0002] In ophthalmic lenses, an antireflection layer is often formed on the surface in order to suppress light reflection and improve light transmission. However, when using spectacle lenses, hand dirt, fingerprints, sweat, cosmetics, etc. tend to adhere to the anti-reflection layer, and dirt is easily conspicuous. In addition, the dirt is also difficult to remove. Therefore, in order to make it difficult to get dirty or to wipe off dirt easily, the surface of the anti-reflection layer is often further subjected to anti-fouling treatment and an anti-fouling layer is provided. Furthermore, since dirt is easily wiped off by this antifouling layer, it also has the effect of preventing injury (for example, patent document 1). The spectacle lens describe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B9/14B24B13/005C09J7/29
CPCC09J2400/243B24B13/005C09J7/0296B24B9/146B32B27/065B32B2405/00B32B2551/00C09J7/0217C09J2433/00B32B27/32B32B2266/0278C09J7/385C09J7/29Y10T428/2852Y10T428/2848Y10T428/24322B24B9/14
Inventor 铃木庆一小池敏浩
Owner HOYA LENS MFG PHILIPPINES INC
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