JPH0724373A - Manufacture of masking material - Google Patents

Abstract

PURPOSE:To efficiently produce a masking material for protecting temporarily the surface of an article by a method in which a number of panels piled, after being positioned by penetrating support rods through holes provided at the corners of the panel, are cut by a cutter from above. CONSTITUTION:A masking material 1 is to protect temporarily the surface of an article during transportation, etc. Through holes 6 are provided at the four corners of a panel 5; an adhesive layer is placed on the back of the panel 5; and a cut line 5A is drawn on the surface. A block enclosed by the cut line 5A is set up as the main body 2 of the masking material 1, and a projection 2A is formed on the surface of the main body 2. A number of the panels 5 are piled through a release sheet 10 on the surface of a jig 9 in which support rods 8 are stood at the four corners of a base 7 with the support rods 8 penetrating the through holes 6. Each panel is cut along the cut line 5A by heat rays to cut out a pile 1A of masking materials. Each masking material 1 is separated one by one for use.

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 for temporarily protecting the surface of an article during transportation, surface treatment and the like.

[0002]

2. Description of the Related Art For example, when painting an underfloor of an automobile, it is necessary to mask it with a masking material so that the paint does not enter into the water drain holes provided in the underfloor. Conventionally, as shown in FIG. 8, a masking material (1) provided with an adhesive layer (3) on a mounting surface of a block-shaped main body (2) made of polystyrene foam or the like has a hole ( 4) A method for applying a surface treatment such as painting after mounting it on a masking part such as (Shokai Sho 62-58)
No. 52, No. 62-48473, No. 62-56
171). Such a masking material (1) is, for example, as shown in FIG. 9, a plurality of panels (5) made of polystyrene foam or the like having an adhesive layer (3) formed on one side thereof are stacked and cut from above with a cutting tool. Manufactured by cutting along (5A).

[0003]

However, in the above-mentioned conventional method for manufacturing a masking material, it is difficult to position the panels (5) when they are stacked, and in particular, the adhesive layer (3) is formed on one surface of the panel (5). In this case, when the panels (5) are stacked, the adhesive layer (3) adheres, which makes it very difficult to correct the position.

[0004]

[Means for Solving the Problems] As means for solving the above-mentioned conventional problems, the present invention is to stack a plurality of panels (5) having through holes (6) in at least two corners and The panel (5) is fixed in position by inserting the support rod (8) into the through hole (6) of the panel (5), and then the stacked panel (5) is fixed from above by a cutting tool (11). Provide a method for manufacturing the masking material (1) that is cut into the masking material (1), and further provide a method for manufacturing the masking material (1) in which the adhesive layer (3) is formed on one surface of the panel (5). It is a thing.

[0005]

[Function] Through holes are provided in at least two corners of the panel (5).
(6) is provided, and the support rod (8) is penetrated through the through hole (6), and a plurality of the panels (5) are stacked. Then, the position of each panel (5) is fixed by the support rod (8). A plurality of panels (5) thus stacked and fixed in position are cut from above by a cutting tool (11) to obtain a masking material (1).

[0006]

EXAMPLES The present invention will be described with reference to one example shown in FIGS. 1 to 5. Through holes (6) are provided at the four corners of the panel (5), and an adhesive layer (3) is formed on the back surface. Has been done. Further, a cut line (5A) is written on the surface of the panel (5) by printing, writing or the like. In the panel (5), the block surrounded by the cut line (5A) becomes the main body (2) of the masking material (1), and the projection (2A) is formed on the surface of the main body (2).

As shown in FIG. 1, a plurality of the panels (5) are stacked on a jig (9) in which support bars (8) are erected at the four corners of a table (7). At that time, a releasable sheet (10) such as polyethylene film or release paper is laid on the upper surface of the jig (9). When stacking multiple panels (5) above, use the jig (9)
The support rod (8) is inserted into the through hole (6) of the panel (5) to fix the position. After stacking a plurality of the panels (5) on the jig (9) as described above, the heating wire (11) is cut from above along the cutting line (5A) as shown in FIG. At this time, the support rod (8) does not interfere with the heating wire (11).
In this way, as shown in FIG.
The masking material stack (1A) obtained by stacking (1) is cut out.

The masking material stack (1A) is, for example, carried into the coating site as it is, and as shown in FIG. 4, the masking material (1) is sequentially removed from above by a hand H or a robot, for example, the floor of an automobile. Adhere to the drain hole on the back. At this time, masking material in the masking material stack (1A)
Since the adhesive layer (3) on the back side of (1) adheres to the protrusions (2A) on the surface of the masking material (1) above it, the masking material (1)
You can easily remove the from above. Also in FIG.
As shown in (1), the masking material stack (1A) may be held in a hand H or a robot, and the masking material (1) may be attached to the hole (4) from below to be removed from the stack (1A).

6 and 7 show another embodiment of the present invention. In FIG. 6, the panel (25) is stacked by inserting the supporting rod (8) of the jig (9) through the through hole (26) without forming an adhesive layer on one surface, and stacking them by the heating wire (11). Cutting line
The masking material (21) is cut along the line (25A). The masking material (21) is fitted into the hole (24) so that the hole (2)
Protect 4) from surface treatment.

The panel (5,25) of the present invention is made of a thermoplastic such as polystyrene, polyethylene, polypropylene, ethylene-propylene copolymer, polyvinyl chloride, vinylidene chloride copolymer, ethylene-vinyl acetate copolymer. A sheet or a sheet of the thermoplastic foam, a sheet of a thermosetting plastic such as polyurethane, melamine resin, urea resin, phenol resin, epoxy resin or a sheet of the foam of the thermosetting plastic, or styrene-butadiene Sheets of synthetic rubber and natural rubber such as rubber, acrylonitrile-styrene-butadiene rubber, acrylonitrile-butadiene rubber or foams of the rubbers, or methylpentene copolymer, polyethylene terephthalate, polyamide, poly Carbonate, cellulose acetate, polysulfone, polyether sulfone, polyphenylene sulfide, polyphenylene oxide, polyamideimide, polyetherimide, polyetheretherketone, polyimide, polyallyl ether, amorphous polymer, aminobimaleimide, bimaleimidoazine-based thermosetting aroma Sheets of engineering plastics such as group polyimides or sheets of foams, synthetic fibers such as polyamide fibers, polyester fibers, acrylic fibers, acetate fibers, wood fibers, natural fibers, inorganic fibers and their non-woven fabrics, knitted fabrics, paper, cardboard ,
The material is an impregnated sheet obtained by impregnating wood, plywood, hardboard or the like with a binder such as polyurethane, melamine resin, urea resin or phenol resin, or a metal sheet, or a laminate of two or more of the above materials.

The panel (5,25) further includes calcium carbonate, magnesium carbonate, barium sulfate, calcium sulfate, calcium sulfite, calcium phosphate, calcium hydroxide, magnesium hydroxide, aluminum hydroxide, magnesium oxide, titanium oxide, and oxide. Iron, 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 One or two of inorganic fillers such as fly ashes, wood flour, coconut powder, walnut flour, starch, cotton fiber powder, fillers such as wheat flour, colorants such as dyes and pigments, and plasticizers such as DOP and DBP. One or more species may be mixed.

When the panel (5, 25) is made of thermoplastic foam such as polystyrene foam,
A hot wire can be used for cutting, but if a water jet, a knife cutter, or the like is used in addition to the hot wire, it is possible to cut any panel material. The position of the panel can be fixed if there are two or more through holes in the panel.

[0013]

Therefore, in the present invention, the masking material can be easily mass-produced.

[Brief description of drawings]

 1 to 5 show an embodiment of the present invention.

[Figure 1] Panel stacking diagram

FIG. 2 is a perspective view after panel stacking is completed.

FIG. 3 Perspective view of masking material stack

[Fig. 4] Masking explanatory diagram

FIG. 5 is another masking explanatory view. FIGS. 6 and 7 show another embodiment of the present invention.

FIG. 6 is a perspective view after panel stacking is completed.

FIG. 7: Masking explanatory diagram

FIG. 8 is an explanatory diagram of masking.

FIG. 9 is a conventional explanatory diagram.

[Explanation of symbols]

 1,21 Masking material 3 Adhesive layer 5,25 Panel 6,26 Through hole 8 Support rod 11 Cutting tool

Claims (2)

[Claims] 1. A stack of a plurality of panels having through holes formed in at least two corners, and a panel is inserted into the through holes of the panels to fix the positions of the panels, and then the stacked panels. A method for manufacturing a masking material, characterized in that the mask is cut from above into a predetermined masking material with a cutting tool. 2. The method for producing a masking material according to claim 1, wherein an adhesive layer is formed on one surface of the panel.