JPS63207636A - Manufacture of protective material for small object surface - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Application of Scratching The present invention relates to a method for manufacturing a small article surface protection material suitable for preserving the surface of electronic components such as integrated image pickup devices.

Prior art and its problems> i,! Adhesive film pieces are used to prevent foreign matter from adhering to or damaging the glass surface, color filter surface, element surface, etc. of electronic components such as IT body image sensors.

However, because the conventional adhesive film pieces (1) are made by cutting an adhesive film in which adhesive is provided on the entire surface of a plastic film (2), the adhesive layer at the edge of the piece is deformed. This has the disadvantage that when it is peeled off from the surface of the electronic component, adhesive remains at the edges, contaminating the electronic component list.

Means for Solving the Problems> The present invention provides a novel method for manufacturing a surface protection material for small articles that solves the drawbacks of the prior art. The above-mentioned film of the non-adhesive layer portion of the protective material original fabric is adhered to the film-like material with the adhesive J- regularly and discontinuously interposed to form the non-adhesive layer portion on the film-like material. The method consists in making a cut in the film-like material along the vicinity of the adhesive layer to form a protective material for the surface of the small article, and then removing the film-like material from other parts.

<Example> The manufacturing method of the present invention will be specifically explained below using the drawings.

Figures 1A and 1B show the original fabric of the protective material for the surface of small articles used in the present invention.
A plastic laminate is applied to the surface of a self-supporting base material such as a releasable resin such as a silicone-based material, a fluorine-based material, a fluorine-based material, etc. A release paper coated with I-Flykyl or similar articles, such as a release material whose base material is a plastic film or sheet, metal foil, etc.

2#: Film-like material, 3-150μ thick plastic such as polyethylene, polypropylene.

Polyolefins such as ethylene copolymers,
Other materials that can be used include polyester, polyimide, polyamide, and polyvinyl chloride.

3 is an adhesive layer interposed between the materials 1 and 2;
A known pressure sensitive adhesive material such as acrylic or rubber is formed regularly and discontinuously as shown in the figure, and a non-adhesive layer portion 4 is formed on the film material 2.

The above-mentioned original fabric is prepared by applying a pressure-sensitive adhesive substance in regular and discontinuous manner on the surface of a releasable material 1, using a pattern-based method, to form an adhesive no. Although it can be made by bonding the material 1, it is also possible to provide the adhesive layer 3 on the material 1 and bond the material 2 thereto.

Using an RI, Thomson-type blade, etc., on the original fabric thus formed, cuts are made along the vicinity of the adhesive layer 3 only in the non-adhesive portion 4 of the flat, film-like material 2 shown in FIG. 5 to form a small article surface retentive material 6 having a surface area of approximately 0.5 to 9 cm4. Note that the gap between the end of the adhesive layer 3 and the cut must be at least 0.3 mm, preferably 0.5 war or more, and if it is less than 0.3 mm, the adhesive J 3 This is undesirable because the edges of the material may become deformed or dented.

From the original fabric cut in this way, a protective material 6 is temporarily attached to the surface of the releasable material l! By removing other parts of the film-like material 2, a small article surface preservation material having the shape shown in FIGS. 3 and 3B can be obtained.

Although not shown, a metallic conductive metal such as aluminum, steel, iron, gold, silver, etc. can be provided on one or both surfaces of the film material 2 by means of 1XfJ, thermal spraying, lamination, etc. Further, the adhesive 113 can also be provided partially in the form of spots or stripes.

<Effects of the Invention> According to the manufacturing method of the present invention, the protective material obtained does not deform or wobble due to the shoulder edge of the adhesive f, so even if it is peeled off by a pasting machine to electronic parts, etc., no adhesive remains. It has the characteristic of not causing any contamination.

[Brief explanation of the drawing]

1st LiAA is a partial perspective view of the original fabric used in the present invention, FIG. 1B is a sectional view taken along line At-f-I' in FIG. 1, and FIG. 2 is a partial perspective view showing an example of the present invention. figure. FIG. 3A is a partial perspective view of a small article surface protection material obtained by the manufacturing method of the present invention, and FIG. 3B is a round sectional view of FIG. 3A taken along the line ■-n'. l...Releasable material 2...Film-like material 3...
・Adhesive 1-4...Non-adhesive part 5...Cut

Claims (1)

[Claims] The non-adhesive layer portion of the protective material original fabric is formed by bonding a removable material and a film-like material with an adhesive layer interposed regularly and discontinuously to form a non-adhesive layer portion on the film-like material. A method for manufacturing a surface protection material for small articles, comprising making a cut in the film material along the vicinity of the adhesive layer to form a surface protection material for small articles, and removing the film material in other parts. .