JPH0975805A - Masking material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily fit a masking material by forming the bending parts, in which flange-fitting grooves are inside formed in both end parts, of the masking material consisting of the molding of a plastic sheet and fitting the flanges of both end parts of the part to be protected into the flange-fitting grooves of the masking material and fitting it to the part to be protected. SOLUTION: In the case of fitting a masking material 2 to a door pillar 1A consisting of an outer panel 13 and an inner panel 14, the masking material 2 is reinforced with a longitudinal rib 6 and lateral ribs 7 and flange-fitting grooves 10, 11 are formed in the right and left both ends. Further, a handhold part 12 is extended in a folding part 9 on one side. The masking material 2 is fitted to the door pillar 1A by fitting flanges 15, 16 consisting of the overlapping part of the outer panel 13 and the inner panel 14 in both ends of the door pillar 1A into the flange-fitting grooves 10, 11 of the folding parts 8, 9 of the right and left both ends of the masking material 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a masking material used for painting automobiles and the like.

[0002]

2. Description of the Related Art When two-color coating is applied to an automobile or the like, first, a predetermined color is applied to a predetermined location, and after the coating is dried, a masking material is attached to the location where the coating is applied. Apply a coating of a different color from the above coating, and then remove the masking material. Conventionally, as shown in FIG. 8, when a predetermined portion of the car body (1) is painted C ₁ and the masking material (2) is attached after drying, a parting tape (24, 24) is attached and fixed, and then the coating C
It had a different coating C ₂ from ₁ .

[0003]

However, in the above-mentioned conventional configuration, it takes a lot of time to attach the parting tape (24, 24),
Moreover, since the parting tape is discarded after use, the material cost is wasteful and the disposal of the parting tape that has been discarded has been a problem.

[0004]

As a means for solving the above-mentioned conventional problems, the present invention is a bent portion (8, 9) having a flange fitting groove (10, 11) formed inside at one end or both ends. Protected part (1A)
By fitting the flanges (15, 16) present at one end or both ends of the above into the flange fitting groove (10, 11),
It provides a masking material (2) that can be attached to (1A).

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to FIGS.
Shown in As shown in FIG. 1, the door pillar (1A), the door lower part (1B), the vehicle body lower part (1C), and the bonnet rear edge (1D) of the car body (1) are painted with a predetermined color C _1. After the coating C ₁ has dried, the masking material (2,3,4,5) is attached.

As shown in FIGS. 2 and 3, the masking material (2) attached to the door pillar (1A) is a vertical rib (6).
And the lateral ribs (7), and the flange fitting grooves (10, 11) are formed inside the bent portions (8, 9) by processing the bent portions (8, 9) at both left and right edges. A claw portion (12) extends from one of the bent portions (9).
The masking material (2) is an outer panel as shown in FIG.
(13) and the inner panel (14) of the door pillar (1A) the outer panel (13) at both edges of the outer panel (13) and the inner panel (14) the flange (15, 16) consisting of the masking material (2) It is attached to the door pillar (1A) by fitting it into the flange fitting groove (10, 11) of the left and right edge bent portions (8, 9).

As shown in FIGS. 4 and 5, the masking material (3, 4) attached to the lower portion of the door (1B) and the lower portion of the vehicle body (1C) is reinforced by vertical ribs (17) and horizontal ribs (18). A flange fitting groove (20) is formed inside the lower end edge by processing the bent portion (19). As shown in FIG. 5, the masking material (3, 4) is composed of an outer panel (21) and an inner panel (22) of a door or a vehicle body, and the outer panel (21) and the inner panel (2) of the lower edge of the door or the vehicle body.
The flange (23) consisting of the overlapping portion with 2) is used as the masking material.
Fit into the flange fitting groove (20) of the bottom edge bent portion (19) of (3, 4), and the upper edge of the masking material (3, 4) is a parting tape (2
Fix with 4).

As shown in FIGS. 6 and 7, the masking material (5) attached to the rear edge portion (1D) of the bonnet is a vertical rib.
It is reinforced by (25) and lateral ribs (26), and a flange fitting groove (28) is formed inside the rear edge by processing the bent portion (27). The above masking material
(5) is the bonnet outer panel (29) as shown in Fig. 7.
Flange (31) consisting of the overlap between the inner panel (30) and the inner panel (30)
Is fitted into the flange fitting groove (28) of the trailing edge bent portion (27) of the masking material (5), and the front edge of the masking material (5) is fixed with a parting tape (32).

A masking material is applied to the door pillar (1A), the door lower portion (1B), the vehicle body lower portion (1C) and the bonnet rear edge portion (1D).
After installing (2,3,4,5), paint C ₂ of a different color from the previous paint C ₁ is applied to the door pillar (1A), the door lower part (1B), the vehicle body lower part (1
C) and the bonnet trailing edge (1D), and then apply the masking material (2,3,4,5) to the door pillar (1A), the door lower part (1B), the vehicle body lower part (1C) and the bonnet trailing edge. The masking material (2) is removed from the part (1D), but when removing the masking material (2) from the pillar (1A), if the grip part (10) is grasped by hand and pulled, the workability of removing the masking material (2) is improved. It will be easier. Removal of the masking material (2,3,4,5) immediately after applying the coating C ₂ ,
Alternatively, it may be performed at any time after the coating C ₂ is applied and the masking material (2, 3, 4, 5) is attached and heat-dried in a drying oven.

Preferred materials for the masking material (2,3,4,5) of the present invention include engineering plastics and polymer alloys of the engineering plastics such as polyamide (PA) and polyester (P).
E), polyacetal (POM), polycarbonate (PC), polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polysulfone (PSF), polyethersulfone (PES), polyphenylene oxide (PPO), polyphenylene sulfide (PPS), Polyarylate (PAR), polyetheretherketone (PEEK), polyamideimide (P
AI), polyimide (PI), polyetherimide (P
EI), polyamino bismaleimide, methylpentene copolymer (TPX), thermoplastic type such as cellulose acetate (CA), liquid crystal type such as polyallyl ether,
There are compression molding types such as fluororesins such as polytetrafluoroethylene (PTFE), amorphous polymers, polyamino bismaleimide, bismaleimide-triazine type thermosetting aromatic polyimide, and the like, but the above engineering plastics and other thermoplastics The polymer alloy of is a more preferable material for the present invention.
Such polymer alloys include PPO-high impact polystyrene polymer alloy, PPO-polyamide polymer alloy, PE-high impact polystyrene polymer alloy, PE-polyamide polymer alloy, nylon-modified polyolefin polymer alloy, nylon-
Acrylonitrile / styrene / butadiene copolymer (A
BS) polymer alloy, nylon-PPO polymer alloy, POM-thermoplastic polyurethane polymer alloy, P
BT-acrylic rubber polymer alloy, PBT-ABS polymer alloy, PBT-polyester ether elastomer polymer alloy, PBT-PET polymer alloy,
PBT-PC polymer alloy, PPO-PTFE polymer alloy, PBT-PTFE polymer alloy, PET-
PTFE polymer alloy, PET-PAR polymer alloy, PC-PTFE polymer alloy, PAR-PTFE
Polymer alloys, nylon-PTFE polymer alloys and the like, and the above polymer alloys may be used alone or in combination of two or more, or may be a foam. Besides the above-mentioned engineering plastics or polymer alloys of the above-mentioned engineering plastics, as the material of the masking material (2,3,4,5) of the present invention, for example, polyethylene, polypropylene, ethylene-propylene copolymer,
Ethylene-vinyl acetate copolymer, polyvinyl chloride, polyvinylidene chloride, polystyrene, polyvinyl acetate, fluororesin, thermoplastic acrylic resin, thermoplastic polyester, thermoplastic polyamide, thermoplastic urethane resin, acrylonitrile-butadiene copolymer, A styrene-butadiene copolymer, an acrylonitrile-butadiene-styrene copolymer, or a copolymer obtained by copolymerizing the above thermoplastics with a monovalent and / or polyunsaturated carboxylic acid and / or its anhydride is also used. It

Further, as the material of the masking material (2,3,4,5), for example, polyethylene, polypropylene, ethylene-
Propylene copolymer, ethylene-vinyl acetate copolymer,
Polyolefin resin such as ethylene-vinyl chloride copolymer, or vinyl chloride resin, vinylidene chloride resin, styrene resin, acrylic resin, methacrylate resin, vinyl propionate resin, vinyl acetate-maleic acid resin, chloride Thermoplastics such as vinyl-vinyl acetate-based resin, polyvinyl ether-based resin, polyester-based resin, polyamide-based resin or the like, or foams or polyurethane foams of the above-mentioned thermoplastics, acrylic rubber, butyl rubber, silicon rubber, urethane rubber, fluoride Rubber, polysulfide rubber, graft rubber, butadiene rubber, isoprene rubber, chloroprene rubber, polyisobutylene rubber, polybutene rubber, isobutene-isoprene rubber, acrylate-butadiene rubber, styrene-butadiene rubber, acrylo Tolyl - butadiene rubber, pyridine - butadiene rubbers, styrene - isoprene rubber, acrylonitrile - chloroprene rubber, styrene - chloroprene rubber, styrene - butadiene - styrene (SB
S) copolymer, styrene-isoprene-styrene (SI
S) copolymers, styrene-based thermoplastic elastomers such as styrene-hydrogenated polyolefin-styrene (SEBS) copolymers and butadiene-styrene block copolymers,
Styrene-rubber intermediate block-synthetic rubber or natural rubber such as block copolymers such as styrene copolymer, rosin, petroleum resin, coumarone resin, phenol resin, alkylphenol resin, terpene resin or other natural or synthetic resin, One kind or two or more kinds of non-woven fabric, fiber knitted fabric, felt and the like may be mixed or laminated.

Further, as the material of the masking material (2,3,4,5), for example, 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, carbon fiber, calcium silicate, bentonite, white carbon, carbon black, iron powder, aluminum powder, stone powder, blast furnace slag, fly ash, cement, inorganic filler such as zirconia powder, cotton, hemp, wool, etc. Organic synthetic fibers such as fibers, polyamide fibers, polyester fibers, acrylic fibers, viscose fibers, acetate fibers, vinyl chloride fibers, vinylidene chloride fibers, asbestos fibers, glass fibers, carbon fibers, ceramic fibers,
Metal fiber, inorganic fibers such as whiskers, linters, linen, sisal, wood flour, coconut flour, walnut flour, starch, wheat flour, and other organic fillers and other reinforcing materials are added to maintain shape retention, dimensional stability, compression and compression. You may improve tensile strength etc. The filler is usually added in an amount of about 0.5 to 200% by weight based on the plastic material of the masking material. Further, it may be colored with a pigment or a dye for the purpose of identifying the masking portion, and may be colored by DOP, DBP.
Plasticizer such as, antioxidant, antistatic agent, crystallization accelerator,
Flame retardant, flame retardant, insect repellent, antiseptic, wax, lubricant,
An antiaging agent, an ultraviolet absorber, a foaming agent such as a chemical foaming agent or a capsule-type foaming agent may be added. These components may be added alone or in combination of two or more.

In order to produce a masking material from the above-mentioned plastics or a mixture of plastics and fillers, it is usually vacuum-formed into a film or a sheet.
It is manufactured by press molding, blow molding, injection molding, or the like.

[0014]

The present invention eliminates or halves the use of a parting tape when attaching a masking material.
Eliminates the need to install the parting tape and eliminates waste of parting tape.

[Brief description of drawings]

 1 to 7 show an embodiment of the present invention.

FIG. 1 is a perspective view of a vehicle body

[Figure 2] Side view of the door pillar

FIG. 3 is a sectional view taken along line AA in FIG. 2;

FIG. 4 is a side view of the door and the lower part of the vehicle body.

FIG. 5 is a sectional view taken along line BB in FIG. 4;

FIG. 6 is a partial perspective view of the bonnet.

7 is a sectional view taken along line CC of FIG.

FIG. 8 is a partial sectional view of a conventional masking material attached state.

[Explanation of symbols]

 1 Body 1A Door pillar (protected part) 1B Lower part of door (protected part) 1C Lower part of vehicle (protected part) 1D Rear edge of bonnet (protected part) 2,3,4,5 Masking material 8,9,19, 27 Bent section 10,11,20,28 Flange mating groove 15,16,23,31 Flange

Claims (1)

[Claims] 1. A plastic sheet molding having a bent portion with a flange fitting groove formed inside at one or both ends, and a flange existing at one or both ends of a protected portion is fitted into the flange fitting groove. The masking material is attached to the protected portion by