JP2004181416A - Masking material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To attach a masking material simply while preventing the warping of the masking material and the lifting thereof from a masking portion. <P>SOLUTION: This masking material 1 consists of a masking material body 11 and clips 12, and the masking material body 11 has inserting grooves 11a, 11b into which prescribed masking portions 21 of an article 2 are inserted, and the clips 12 are inserted on the peripheries of the inserting grooves 11a, 11b in the state of inserting the prescribed masking portions of the article 2 into the inserting grooves 11a, 11b of the masking material body 11 to pinch and fix the article 2. The masking material body 11 and the clips 12 are easily attachable and detachable to/from a masking portion 21. Since the clips 12 pinch and fix the prescribed masking portions of the article 2 after the attaching, the warping and lifting of the masking material body 11 are prevented. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a masking material to be applied to a portion (masked portion) where surface treatment should not be performed when a surface treatment such as painting or plating is performed on an article.
[0002]
BACKGROUND OF THE INVENTION
Conventionally, as shown in FIGS. 8 to 10, when protecting a masking portion (21) of an article (2) from painting or the like, an insertion groove (21) into which a predetermined portion (21a) of the masking portion (21) is inserted. The masking material (9) having the material (91) is attached to the article (2) by inserting the fitting groove (91) into a predetermined portion (21a) of the product (2), and then coating the material from above.
At this time, if the masking material (9) is not firmly fixed, the masking material (9) shifts or comes off due to the spraying pressure at the time of spraying the paint or other external force. The masking material (9) is exposed to a high temperature at the time of baking and drying of the coating, and the coating film adhered to the surface of the masking material (9) is dried and shrunk. Incomplete coverage of location (21).
[0003]
[Prior art]
Therefore, a notch (92) is provided in the insertion groove (91) of the masking material (9), and the insertion groove (91) is inserted into a predetermined portion (21a) of the article (2). As shown in FIG. 10, it has been proposed that an adhesive tape (93) or the like be stuck to the notch (92) to prevent the masking material (9) from warping or floating.
[0004]
[Problems to be solved by the invention]
However, it is troublesome to attach the adhesive tape (93) or the like to the notch (92) of the masking material (9) or to peel off the adhesive tape (93) or the like, which makes the painting operation inefficient. There was a point. In addition, the adhesive of the adhesive tape (93) may transfer to the surface of the article.
[Means for Solving the Problems]
The present invention provides a masking material (1) comprising a masking material main body (11) and a clip (12) as a means for solving the above-mentioned conventional problems, wherein the masking material main body (11) is an article (2). There is an insertion groove (11a, 11b) into which a predetermined portion (21a, 21b) is inserted, and the predetermined portion (21a, 21b) of the article (2) is inserted into the insertion groove (11) of the masking material body (11). 11a, 11b), the clip (12) is inserted into the outer periphery of the insertion groove (11a, 11b) and clamped and fixed, so that the masking material main body (11) becomes a masking portion of the article (2). It is intended to provide a masking material (1) to be attached and fixed to (21).
Preferably, the masking material body (11) and the clip (12) are made of the same or compatible plastic.
[0006]
[Action]
The masking material (1) of the present invention comprises a masking material main body (11) and a clip (12), and the masking material main body (11) is inserted into a predetermined portion (21a, 21b) of the article (2). It has attachment grooves (11a, 11b), and a predetermined portion (21a, 21b) of the article (2) is inserted into the insertion groove (11a, 11b) of the masking material body (11) to easily attach the article (2). 2) Can be attached to and removed from. Also, the clip (12) can be easily attached by abutting against the outer periphery of the inserted groove (11a, 11b) and pushed in, and can be easily removed by pulling out the clip (12).
After the masking material (1) is attached, the predetermined position (21a, 21b) of the article (2) is inserted into the insertion groove (11a, 11b) of the masking material body (11). Since the clip (12) is inserted and fixed to the outer periphery of the attachment groove (11a, 11b), it is firmly fixed without slipping or slipping off to the article (2), and warping of the masking material body (11). And the lifting of the masking material main body (11) from the masking portion (21) is also prevented.
[0007]
When the masking material main body (11) and the clip (12) are made of the same or compatible thermoplastics, the masking material main body (11) and the clip (12) can be mixed and reproduced without being separated. .
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
The present invention will be described by way of an example.
The masking material (1) shown in FIG. 1 is a masking material body used by being applied to the bumper grill (21) to protect the bumper grill (21) of the vehicle bumper (2) shown in FIG. 2 from painting. (11) and, for example, six clips (12). The masking material body (11) has a shape and a size compatible with the bumper grille (21) of the bumper (2) of the vehicle, and has a box shape with an opening at an upper part. As shown in FIG. On the back side of 11), two insertion grooves (21) to be inserted into the horizontal rail (21a) and the vertical rail (21b) inserted into the air outlet (22) of the bumper grill (21). 11a, 11b) are provided in a cross shape. Further, a flange (11c) is provided around the surface side peripheral edge of the masking material body (11) so as to abut on the inner peripheral wall of the bumper grill (21).
[0009]
As shown in FIG. 4, the clip (12) has a shape obtained by bending a plate-like member into a substantially U-shaped cross section in which the opening side is slightly narrowed, and both ends are slightly bent outward to form a mounting guide portion (12a). Is formed.
[0010]
The masking material main body (11) is manufactured by molding, for example, a thermoplastic plastic sheet by vacuum molding, air pressure molding, vacuum pressure molding, pressure vacuum molding, press molding, injection molding, or the like. If a sheet or film made of a thermoplastic foam is manufactured by vacuum forming or pressure forming, it can be efficiently mass-produced.
[0011]
For example, as shown in FIG. 5, the clip (12) is formed by extruding a plastic into a rod-shaped body (12 ') having a substantially U-shaped cross section, the opening side of which is slightly narrowed. If the clip (12) is cut into a length, it can be efficiently mass-produced, but may be manufactured by injection molding or the like.
[0012]
Examples of the material of the masking material body (11) and the clip (12) include polyolefins such as polyethylene, polypropylene, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer, vinyl chloride resin, styrene resin, and acrylic resin. Resin, methacrylate resin, vinylidene chloride resin, vinyl propionate resin, styrene-butadiene copolymer, thermoplastic polyester resin, thermoplastic polyamide resin, acrylonitrile-butadiene-styrene copolymer (ABS), acrylonitrile -Chlorinated polyethylene-styrene copolymer (ACS), acrylonitrile-butadiene-styrene-N-phenylmaleimide copolymer, styrene-butadiene-styrene copolymer (SBS), styrene-isoprene-styrene copolymer SIS), styrene-ethylene-butylene-styrene copolymer (SEBS), styrene-ethylene-propylene-styrene copolymer (SEPS), styrene-maleic anhydride copolymer, styrene-acrylonitrile copolymer, acrylonitrile-styrene -Acrylate copolymer, methyl methacrylate-butadiene-styrene copolymer, syndiotactic polystyrene (SPS) polymerized using a metallocene compound, polyacetal (POM), acrylic rubber-acrylonitrile-styrene copolymer ( AAS), acrylonitrile-ethylene / propylene rubber-styrene copolymer (AES), metallocene polypropylene, metallocene polyethylene, methyl methacrylate-butadiene-styrene copolymer (MBS), polyamide Polycarbonates, polyesters, polyphenylene ether (PPE), (hereinafter referred to as engineering plastics) thermoplastic or engineering plastics such as modified polyphenylene ether (modified PPE), and the like.
The modified PPE refers to styrene, α-methylstyrene, α-ethylstyrene, α-methylvinyltoluene, α-methyldialkylstyrene, o, m or p-vinyltoluene, o-ethylstyrene, p-ethyl Styrene, 2,4-dimethylstyrene, o-chlorostyrene, p-chlorostyrene, o-bromostyrene, 2,4-dichlorostyrene, 2-chloro-4-methylstyrene, 2,6-dichlorostyrene, vinylnaphthalene, A polymer alloy obtained by graft-polymerizing a styrene-based monomer such as vinylanthracene or mixing a styrene-based resin such as polystyrene, styrene-acrylonitrile resin, acrylonitrile-butadiene-styrene resin (ABS), and high-impact polystyrene (HIPS). It is.
[0013]
Desirable plastic materials for the masking material (1) of the present invention include a mixture of engineering plastic and thermoplastic or a polymer alloy. In particular, a polymer alloy of engineering plastic and polyamide and / or polystyrene and / or polypropylene is desirable.
[0014]
Examples of the polyamide include polytetramethylene adipamide (nylon 46), polyhexamethylene adipamide (nylon 66), polypyrosodone (nylon 4), polycaprolactam (nylon 6), polyheptolactam (nylon 7), Polycaprylactam (nylon 8), polynonanolactam (nylon 9), polyundeca 1 lactam (nylon 11), polydodeca 1 lactam (nylon 12), polyhexamethylene azelainamide (nylon 69), polyhexamethylene sebacamide (nylon 610), polyhexamethylene phthalamide (nylon 6iP), polyhexamethylene terephthalamide, polyhexamethylene isophthalamide, polytetramethylene isophthalamide, polymetaxylene adipamide, nylon MSD Polyamide of hexamethylene diamine and n-dodecane diacid (nylon 612), polyamide of dodecamethylene diamine and n-dodecane diacid (nylon 1212), hexamethylene adipamide / caprolactam (nylon 66/6), hexamethylene adzide Pamide / hexamethylene isophthalamide (nylon 66 / 6iP), hexamethylene adipamide / hexamethylene terephthalamide (nylon 66 / 6T), trimethylhexamethylene oxamide / hexamethylene oxamide, (nylon trimethyl-62 / 62) , Hexamethylene adipamide / hexamethylene azelainamide (nylon 66/69), hexamethylene adipamide / hexamethylene azelainamide / caprolactam (nylon 66/69/6), poly (caproa) (Nylon 6/610), poly (caproamide / hexamethylene dodecamide) (nylon 6/612) nylon MXD6, poly (caproamide / hexamethylene isophthalamide) (nylon 6 / 6I), fragrance There are polyamides such as aromatic polyamides, and the polystyrene includes both general-purpose and impact-resistant polystyrenes. Impact-resistant polystyrene is desirable, and styrene-butadiene-styrene block copolymer (SBS) and styrene-isoprene A styrene block copolymer (SIS), an α-methylstyrene-butadiene-αmethylstyrene block copolymer (α-MeS-Bd-MeS), an α-methylstyrene-isoprene-α-methylstyrene block copolymer, Styrene-hydrogenated polyolefin-styrene Down block copolymer (SEBS) one or two or more of styrene-based thermoplastic elastomer or the like may be added. Further, a rubber component may be added to the polymer alloy to form a rubber-modified polymer alloy.
[0015]
When a polymer alloy is used as the plastic material of the masking material (1) of the present invention, a known compatibilizer is appropriately added to the polymer alloy for the purpose of improving the compatibility of each component. It is desirable.
The compatibilizer is made of a compound having an affinity for each component of the polymer alloy, and mediates each component to make the mixing state of each component in the polymer alloy uniform. Therefore, the properties of each component are effectively exhibited, and the material becomes extremely excellent in both heat resistance and moldability, and a masking material (1) having a complicated shape can be easily manufactured by vacuum molding or the like.
[0016]
For example, as a compatibilizer between an aromatic engineering plastic such as PPE, modified PPE and PPS, and a polymer alloy (including a polymer alloy containing a rubber-like substance) composed of a polyolefin such as polypropylene, for example, PPE and polypropylene are used. Block or graft copolymers bonded by chemical bonds, block or graft copolymers of polypropylene and polystyrene, block or graft copolymers of PPE and ethylene-butene copolymer, alkenyl aromatic compounds (eg, styrene) A polymer obtained by hydrogenating a diblock copolymer or a triblock copolymer of styrene and a conjugated diene (for example, butadiene or isoprene) is used.
[0017]
Examples of the compatibilizing agent for the above-mentioned aromatic engineering plastic and a polymer alloy containing a polymer alloy rubber-like substance composed of a polyamide resin include (a) (i) an ethylenic carbon-carbon double bond or a carbon alloy. A compound containing both a carbon triple bond and (ii) a carboxylic acid, acid anhydride, acid amide, imide, carboxylic ester, amine or hydroxyl group; (b) a liquid diene polymer; (c) an epoxy compound; (D) a polycarboxylic acid or a derivative thereof; (e) an oxidized polyolefin wax; (f) a compound containing an acyl functional group; (g) a chloroepoxytriazine compound; and (h) a trialkylamine salt of maleic acid or fumaric acid. Is exemplified.
Details of the above-mentioned compatibilizers (a) to (h) are disclosed in JP-A-9-12497, and each of the compatibilizers (a) to (h) is described in U.S. Pat. No. 4,315,086. (A), (b) and (c), U.S. Pat. No. 4,873,286 (a (d)), U.S. Pat. No. 4,659,760 ((e)) U.S. Pat. No. 4,642,358 and U.S. Pat. No. 4,600,741 (ref. (F)), U.S. Pat. No. 4,895,945, U.S. Pat. 5,096,979, U.S. Pat. Nos. 5,089,566 and 5,041,504 (references relating to (g)), and U.S. Pat. No. 4,755,566 (( h)).
[0018]
The compatibilizer is usually added in an amount of 0.01 to 60% by mass based on the polymer alloy.
[0019]
The above plastics include 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, and the like. , Diatomite, dolomite, gypsum, talc, clay, asbestos, mica, glass fiber, carbon fiber, calcium silicate, calcium carbonate, benite, white carbon, carbon black, iron powder, aluminum powder, stone powder, blast furnace slag, fry Inorganic filler such as ash, cement, zirconia powder, natural fiber such as cotton, hemp, bamboo fiber, coconut fiber, wool, polyamide fiber, polyester fiber, acrylic fiber, viscose fiber, acetate fiber, vinyl chloride fiber, vinylidene chloride Organic synthetic fiber such as fiber, asbestos fiber, glass fiber, carbon fiber, ceramic fiber, inorganic fiber such as metal fiber, whisker, etc., organic filling such as linter, linen, sisal, wood powder, coconut powder, walnut powder, starch, flour etc. Reinforcing materials such as materials may be added to improve shape retention, dimensional stability, compression and tensile strength, etc. Further, plasticizers such as DOP and DBP, antioxidants, antistatic agents, crystallization Accelerators, flame retardants, flame retardants, insect repellents, preservatives, waxes, lubricants, antioxidants, ultraviolet absorbers, chemical foaming agents, or foaming agents such as capsule foaming agents may be added. These components may be added alone or in combination of two or more.
[0020]
The masking material main body (11) and the clip (12) of the masking material (1) are manufactured by molding the above-mentioned thermoplastic material, but are manufactured using materials having the same or compatible with each other. It is desirable.
If the thermoplastic materials of the masking material body (11) and the clip (12) are made of the same or compatible materials, the clip (12) and the masking material body ( 11) and the clip (12) and the masking material body (11) can be mixed and melted at the same time for recycling.
[0021]
In order to protect the bumper grill (21) with the masking material (1) and paint the bumper, as shown in FIG. 6, the bumper grill (21) is inserted into the insertion grooves (11a, 11b) of the masking material body (11). The horizontal bar (21a) and the vertical bar (21b) are inserted and the masking material body (11) is attached to the bumper grill (21) which is a masking portion. Then, as shown in FIG. 6, the horizontal rails (21a) and the vertical rails (21b) are inserted into the insertion grooves (11a, 11b) of the masking material main body (11). Clips (12) are inserted into the outer periphery of 11b), preferably at six positions near the end as much as possible, and the horizontal rail (21a) and the vertical rail (21b) are integrally clamped and fixed to the insertion grooves (11a, 11b). I do.
[0022]
At this time, since the mounting guides (12a) are formed at both ends of the clip (12), if the mounting guides (12a) are pressed against the insertion grooves (11a, 11b), the elasticity of the plastic is increased. As a result, the opening of the clip (12) is opened and the clip (12) can be easily mounted, and after mounting, both ends of the clip (12) are connected to the insertion grooves (11a, 11b) and the crossbar (21a) by the restoring force of plastic. And the vertical rail (21b).
[0023]
After attaching the masking material (1) in this way, the bumper (2) is coated with a spray (3) or the like as shown in FIG.
Since the masking material body (11) is firmly fixed to the bumper grille (21) by the clip (12), even if a spraying pressure at the time of spraying the paint or other external force is applied, the slipping or the slipping is prevented, and the high temperature is maintained. Also, the occurrence of warpage due to shrinkage of the coating film is prevented, and the masking material body (11) is prevented from floating from the surface of the bumper grill (21). Therefore, the masking material body (11) surely covers and protects the surface of the article to be protected.
Further, the masking material (1) is firmly fixed by the clip (12) sandwiching the insertion grooves (11a, 11b) of the masking material body (11) between the horizontal rail (21a) and the vertical rail (21b). So that it does not fall off, for example, due to the pressure of spraying the paint.
[0024]
When the coating is dried, the clip (12) is removed from the insertion grooves (11a, 11b) of the masking material main body (11), and the insertion grooves (11a, 11b) of the masking material main body (11) are connected to the bumper grill (21). ), The masking material main body (11) is removed from the bumper grill (21) by pulling out from the horizontal rail (21a) and the vertical rail (21b). Since the clip (12) only clamps the horizontal rail (21a) and the vertical rail (21b) of the bumper grill (21), it can be easily pulled out and removed.
At this time, since the masking material body (11) of the masking material (1) does not warp, it can be used repeatedly a plurality of times.
[0025]
【The invention's effect】
The masking material of the present invention prevents the occurrence of warpage and floating from the masking portion, and can be easily attached, so that the painting operation can be performed efficiently. The masking material can be reused.
[Brief description of the drawings]
1 and 7 show one embodiment of the present invention.
FIG. 1 is a perspective view of a masking material. FIG. 2 is a partially omitted perspective view of a bumper. FIG. 3 is a cross-sectional view of the masking material body taken along line AA in FIG. 1. FIG. 4 is a perspective view of a clip. FIG. 6 is a perspective view showing a state in which a masking material is attached. FIG. 7 is a side sectional view showing a state in which a masking material is attached and painted. FIGS. 8 to 10 show a conventional example.
8 is a perspective view of a masking material. FIG. 9 is a perspective view of an attached state of a masking material. FIG. 10 is a side sectional view of an attached state of a masking material.
DESCRIPTION OF SYMBOLS 1 Masking material 11 Masking material main body 11a, 11b Insertion groove 2 Bumper (article)
21 Bumper grill (masking area)
21a Crossbar (specified location)
21b Vertical bar (specified location)

Claims (2)

A masking material comprising a masking material main body and a clip, wherein the masking material main body has an insertion groove into which a predetermined portion of an article is inserted, and a predetermined portion of the article is inserted into an insertion groove of the masking material main body. A masking material wherein the masking material main body is attached and fixed to a masking portion of an article by inserting and holding and fixing a clip to an outer periphery of the insertion groove in a state of being attached. The masking material according to claim 1, wherein the masking material main body and the clip are made of the same or compatible thermoplastic plastic.

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