JPH05337408A - Masking material and production thereof - Google Patents

Abstract

PURPOSE:To enable the easy production of masking materials having various shapes by simply blanking or cutting off planar base materials by constituting the masking materials of the planar base materials blanked or cut off in conformity with the shapes of masking points and tacky adhesive layers formed on one surface of the planar base materials. CONSTITUTION:The masking materials 1A, 1B are supported in the state of original bodies 1 by a release sheet 6 via the tacky adhesive layer 5. The masking by using the masking materials 1A, 1B is executed by peeling the masking materials 1A, 1B from the release sheet 6, folding off the masking materials to blocks of prescribed sizes and shapes in compliance with the points to be masked via folding grooves 3 and mounting the materials via the adhesive layers to the masking points of a member. The masking points are not coated if the member is coated by, for example, a spray gun after the member is masked in such a manner and thereafter the blocks are removed from the masking points.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a masking material used for the purpose of protecting the surface of a member from surface treatment such as painting and plating.

[0002]

2. Description of the Prior Art Conventionally, as shown in FIG. 1, a plate-like base material (2) made of polystyrene foam is divided into a large number of units (4) by forming crease-like fold grooves (3) on both sides. Then, an adhesive layer (5) is formed on one side, and the adhesive layer (5) is attached to the release sheet (6).
There is provided a masking material (1) protected by (Japanese Utility Model Publication No. 62-5852, Japanese Utility Model Publication No. 62-48473).
issue).

[0003]

[Problems to be Solved by the Invention] The above masking material (1)
Remove the release sheet (6) and fold the groove as shown in Fig. 8.
Depending on the size of the masking location (8) of the member (9) from (3), a block (7) consisting of, for example, a 2 × 2 unit (4) is broken off, and the adhesive layer (5) is attached to the masking location (8). ) Is attached to the block (7) and then, for example, a spray gun (10)
When the coating is performed by the method, as shown in FIG. 9, the masking portion (8) is not coated with the coating (11).

However, in the above masking material (1), the block (7) consisting of a predetermined number of units (4) can be broken according to the size of the masking location (8), but the shape of the masking location (8) However, as shown in FIG. 9, it is limited to a rectangle or a square having vertical and horizontal unit units, and there is a problem that it cannot be applied to a masking portion having an arbitrary shape.

[0005]

As a means for solving the above-mentioned conventional problems, the present invention provides masking points (8A, 8B).
Plate-shaped substrate punched or cut according to the shape of (2)
And a masking material (1A, 1B) comprising an adhesive layer (5) formed on one surface of the plate-shaped substrate (2) and a fold groove at a predetermined position on both sides or one side of the plate-shaped substrate (2). To provide a masking material (1A, 1B) in which the plate-shaped base material (1A, 1B) is punched or cut into the plate-shaped base material (2). ) The adhesive layer (5) is provided on one surface of the plate-shaped substrate (2) or the adhesive layer (5) is provided on one surface of the plate-shaped substrate (2),
It is manufactured by punching or cutting (2) into a predetermined shape.

In the present invention, the plate-shaped substrate (2) is masked at a location.
Punching or cutting according to the shape of (8A, 8B), the masking material (1A, 1B) manufactured in this way is used as an adhesive layer.
Attach to the masking points (8A, 8B) via (5). When the plate-like base material (2) is formed with the folding groove (3), the masking material (1A, 1B) is further adjusted according to the shape of the masking location (8A, 8B). ) To a predetermined block (7A, 7
Fold it down to B).

[0007]

EXAMPLES The present invention will be described with reference to one example shown in FIGS. 1 to 7. A masking material base (1) is a plate-like base material (2) on both sides of which fold grooves (3) are formed on the both sides. The adhesive layer (5) is formed by coating an adhesive on one surface, and the adhesive layer (5) is protected by the release sheet (6).

The drug substance (1) has dotted lines A and B as shown in FIG.
The masking materials (1A) and (1B) are punched along. At this time, as shown in FIG. 3, the raw material (1) is punched by a punching die (15) from the side opposite to the release sheet (6), and the release sheet (6)
It is desirable not to disconnect. The punching die (1
5) has a structure in which a cutting blade (12) for punching along a dotted line A and a cutting blade (13) for punching along a dotted line B are supported by a jig (14).

In this way, the original body (1) is punched into the masking materials (1A) and (1B) as shown in FIG. 4, and the masking materials (1A, 1B) are laid through the adhesive layer (5). Release sheet (6)
It is supported by the original (1) state by To perform masking using the masking materials (1A) and (1B), the masking materials (1A, 1B) are peeled off from the release sheet (6) as shown in FIG. The masking material
Align (1A, 1B) with the masking points (8A, 8B) and fold it into blocks (7A, 7B) of the specified size and shape.
The block (7A, 7B) is attached to the masking location (8A, 8B) of (9) via the adhesive layer (5).

After masking is performed in this way, and after painting is applied by, for example, a spray gun (10), the blocks (7A, 7B) are removed from the masking points (8A, 8B), the result is shown in FIG. As shown, the masking portions (8A, 8B) are not coated (11).

Further, as shown in FIG. 7, the masking material (1A, 1B) may be folded into the block (7C, 7D) through the folding groove (3) according to the shape of the masking portion.

In addition to this embodiment, the plate-shaped substrate may be punched or cut according to the shape of the masking portion, and then an adhesive layer may be formed on one surface thereof. For punching or cutting the plate-shaped substrate, a knife, scissors, a cutter such as an ultrasonic cutter, a water jet, a laser beam, or the like may be used other than the punching die, and the plate-shaped substrate may be shaped according to the shape of the masking portion. May be punched into any shape, and the release sheet and the folding groove are not always necessary.

As the masking material of the present invention, a sheet of thermoplastic resin such as polystyrene, polyethylene, polypropylene, ethylene-propylene copolymer, polyvinyl chloride, vinylidene chloride copolymer, ethylene-vinyl acetate copolymer or the like is used. Foam sheet of plastic plastic, thermosetting plastic sheet of polyurethane, melamine resin, urea resin, phenol resin, epoxy resin or the like, or foam sheet of thermosetting plastic thereof, or styrene-butadiene rubber, acrylonitrile- Sheets of synthetic rubbers and natural rubbers such as styrene-butadiene rubber and acrylonitrile-butadiene rubber or sheets of foams of the rubbers, or polyamide fibers, polyester fibers, acrylic fibers, acetate fibers, etc. Fibers, wood fibers, natural fibers, mineral fibers and those of the nonwoven fabric and knitted textiles, paper, cardboard,
An impregnated sheet obtained by impregnating wood, plywood, hardboard, etc. with a binder such as polyurethane, melamine resin, urea resin, and phenol resin, or a metal sheet, or a molded body made of a mixture or laminate of two or more of the above materials. is there.

The masking material of the present invention includes calcium carbonate, magnesium carbonate, barium sulfate, calcium sulfate, calcium sulfite, calcium phosphate, calcium hydroxide, magnesium hydroxide, aluminum hydroxide, magnesium oxide, titanium oxide, iron oxide, Zinc oxide, alumina, silica, diatomaceous earth, dolomite, gypsum, talc, clay, asbestos, mica, glass fiber, calcium silicate, bentonite, white carbon, carbon black, iron powder, aluminum powder, stone powder, blast furnace slag, fry One or more of inorganic fillers such as ash, wood powder, coconut powder, walnut powder, starch, cotton fiber powder, fillers such as wheat flour, colorants such as dyes and pigments, plasticizers such as DOP and DBP May be mixed.

Among the above materials, the density is 10 to 500 g / l
The polystyrene foam is most desirable in terms of easiness of punching and light weight.

As the release sheet of the present invention, a polyolefin sheet such as polyethylene or polypropylene, release paper or the like is used.

[0017]

Therefore, according to the present invention, the masking material having various shapes applicable to the masking portions having various shapes can be easily manufactured only by punching the plate-shaped substrate.

[Brief description of drawings]

 1 to 7 show an embodiment of the present invention.

FIG. 1 is a partial perspective view of a bulk material.

FIG. 2 is a plan view of an original body showing punching points.

[Fig. 3] Side view of punching state

[Figure 4] Plan view of masking material (1A, 1B)

FIG. 5 is a perspective view of a masking state.

[Fig. 6] Plan view after painting

FIG. 7 is a perspective view when it is broken into another block.

FIG. 8 is a perspective view of a conventional masking state.

FIG. 9 is a plan view of a conventional state after painting.

[Explanation of symbols]

 1 Material 1A, 1B Masking material 2 Plate-shaped substrate 3 Fold groove 5 Adhesive layer 15 Punching die

Claims (4)

[Claims] 1. A masking material comprising a plate-shaped substrate punched or cut according to the shape of a masking portion and an adhesive layer formed on one surface of the plate-shaped substrate. 2. The masking material according to claim 1, wherein a folding groove is formed at a predetermined position on both surfaces or one surface of the plate-shaped substrate. 3. The masking according to claim 1, wherein an adhesive layer is provided on one surface of the plate-shaped substrate after punching or cutting the plate-shaped substrate into a predetermined shape. Material manufacturing method 4. The masking material according to claim 1, wherein an adhesive layer is provided on one surface of the plate-shaped substrate, and then the plate-shaped substrate is punched or cut into a predetermined shape. Production method