JPH0526161U - Masking material - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a masking material for covering a strip-shaped coating portion in order to make a strip-shaped coating portion having a different color. [Structure] An adhesive layer is provided on one surface of a tape-shaped substrate. A cover material is attached along the central portion of the base material to cover the adhesive layer. The adhesive layer along both edges of the substrate is left exposed. Stick the adhesive layer on one edge of the base material along one of the cut parts of the strip-shaped coating part, and the adhesive layer of the other edge part along the other cut part, and Cover with masking material. [Effect] Since the adhesive is not exposed in the central portion of the masking material, the attaching work is easy. Since the cover material is used, the edge portion of the base material can be thinned and the step portion of the coating surface of the cut portion can be lowered.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a masking material used for painting or the like.

[0002]

[Prior Art]

 Conventionally, when coating a strip of different colors on the coated surface of vehicles such as automobiles, vehicles, and various structures, this strip is first coated, and then this strip is covered with a masking tape. Paint the surroundings in a different color. At this time, since it is necessary to make chitin-like cuts on both edges of the strip-shaped portion with the masking tape, use a masking tape having a width wider than that of the strip-shaped painted portion, and Attach one side edge of the tape along one of the slits on the strip, and then attach the other edge of the tape along the other slit of the strip. I'm trying to cover it.

However, since an adhesive layer is provided on the entire one surface of this masking tape, it may be attached to a hand during work, or may be attached to a strip-shaped painted surface when it is not necessary, which makes the work extremely difficult. It was difficult to do, I couldn't do clean masking, and I couldn't work efficiently.

In addition, since it is better that there are fewer steps between the differently colored coatings at the cuts, which are the boundaries between the differently coated coatings, the thickness of the masking tape can be reduced to reduce this step. Although it is possible to use a thin one, if the thickness is too thin, the tape will stretch easily and the dimensional stability will be poor, and it will be rather difficult to use, and good color-coding will not be possible.

[0005]

[Problems to be solved by the device]

 Therefore, it can be easily applied to the band-shaped part in a neat state and can be painted separately and reliably, and the stepped part due to the thickness of the paint at the cut part can be reduced. The aim is to obtain a masking material with excellent dimensional stability.

[0006]

[Means for Solving the Problems]

 According to the present invention, a pressure-sensitive adhesive layer is provided on one surface of a tape-shaped base material, and another cover material is applied to the center of the tape-shaped base material to cover it, or both edges of the base material are thinned to form a pressure-sensitive adhesive layer. By providing such a structure, the edges of both edges are thin and the adhesive layer is provided on the edges, and effective masking of the strip-shaped coating part etc. is performed so that good color-coding can be performed. is there.

[0007]

【Example】

 Examples of the base material 1 include polyester, polyolefin, vinyl chloride and other plastic films, crepe paper, Japanese paper, polyethylene processed paper, vinylidene chloride processed paper and other sheet materials. However, it is usually about 20 to 100 mm, and often about 30 to 60 mm. In general, the thickness of paper-based materials such as Japanese paper and crepe paper is relatively thick, and that of polyethylene and other plastic materials is thin, and the difference in level between the cuts is not very noticeable. It is better to use thick ones for painting and thinner ones to reduce the step, but in this case, in any case, make it about 20 to 40% thinner than the conventional one. ing.

A pressure-sensitive adhesive layer 2 is formed on one surface of the base material 1, a pressure-sensitive adhesive layer is left along both edges 3 of the base material, and a cover material 4 for covering the pressure-sensitive adhesive layer is provided in the central portion thereof. Stick it. This cover material 4 is preferably thinner than the above-mentioned base material, and is made of the same material as the base material, or a different material such as a base material of Japanese paper combined with a cover material of plastic film. May be a combination of. The masking tape 5 is usually peeled off by applying a suitable peeling agent to the surface of the base material opposite to the pressure-sensitive adhesive layer and wound. Further, if a sewing line and other cutting lines 6 are provided at appropriate intervals in the longitudinal direction, it becomes easier to cut this during masking work.

When this masking material is used, a belt-shaped coating 11 is usually applied to the article 10 to which the undercoating has been completed, and the thickness gradually decreases from the cut portions 12 at both edges of the coating portion (shading portion). ) 13 is provided first, the adhesive layer 2 on one edge 3 of the masking material is pasted along the one of the above-mentioned slits 12, and then the tape is attached along the other of the slits 12. The adhesive layer 2 on the other edge 3 is attached to cover the strip-shaped coating portion 11. In this case, since the adhesive layer in the central portion of the masking material is covered with the cover material, it is easy to attach the masking material by aligning the edges of the masking material with the above-mentioned cut portions, and when this is pulled, the base material is pulled. Since the cover material has a small thickness, it has little dimensional expansion and contraction and high dimensional stability, and can be easily and reliably applied. In addition, since the cover material is used, the central portion of the masking material will not be accidentally stuck to the strip-shaped painted surface, and the sticking work will be easy and clean masking can be performed.

After such masking, if the remaining portion is painted with a paint of a different color from that of the strip-shaped coating portion, the strip-shaped coating portion is sufficiently protected. Since there is 13, the paint is smoothly applied in different colors, and since the thickness of the base material of this masking material is thin, there is little step difference in the cut part when the masking material is peeled off after coating. , It is possible to apply color coding in a smooth and smooth condition.

In addition, when it is desired to mask a wide width or a wide portion, one side edge of the above masking material is attached along the cut portion, and one side edge of another masking material is attached along the other cut portion. It is advisable that a separately prepared masking sheet is interposed between the two masking materials, and the masking sheet is adhered and fixed to the remaining pressure-sensitive adhesive layer on the other side edge.

As shown in FIG. 3, the adhesive layer 21 is provided on both edges of the base material 1, and the edges of the cover material 4 are attached to the adhesive layer so as to extend between the adhesive layers. It is a thing. In this case, the cover material may be attached to the central portion of the substrate by using another adhesive without using the pressure-sensitive adhesive layer.

In FIG. 4, the central portion of the base material 1 is a thick portion 22, both edge portions are thin portions 23, and an adhesive layer 24 is provided on the thin portions. It plays the role of cover material. This is often convenient when using a plastic material for the substrate, but other materials can also be used.

In FIG. 5, an absorbent layer 25 for adsorbing and holding a solvent, a gas, and other volatile substances vaporized from the coating portion is formed on the surface of the cover material. Polyurethanes, acrylic acid ester copolymers, low-polymerization polyesters, and other elastomers that have compatibility with the above-mentioned vaporizing solvent and other volatiles can be used as appropriate, and the above-mentioned elastomers or the like can be made into a solution or a molten state. Can be formed by coating.

[0015] For example, when the paint is baked on the polyurethane bumper of an automobile and then the paint is baked by heating with an infrared ray, the solvent and the like remaining from the painted portion covered with the masking material are vaporized. Since it is adsorbed and fixed to this absorption layer, volatile matter does not condense on the coated surface after heating and no stain such as spots occurs on the coated surface. This can be similarly applied to other types of cover materials as described above. Further, instead of providing this absorbing layer, calcium carbonate or other absorbing substance may be kneaded into the cover material.

In the example shown in FIG. 6, an auxiliary sheet 26 protruding outward is provided on the edge of the surface of the base material 1 opposite to the adhesive layer 2 by adhesion 27. In this product, when the edge portion 3 of the base material is attached so as to be aligned with the cut portion of the coating portion, a part of the auxiliary sheet covers the uncoated portion with a gap 28 therebetween. When the paint is sprayed in this manner, the paint is applied to the unpainted portion, and the paint is excessively applied to the cut portion while the auxiliary sheet 26 restricts the paint into the gap 28. Although it goes in and is applied, it does not become thicker than the thickness of the above-mentioned gap, so that the thickness of the paint at the cut portion can be more reliably regulated.

[0017]

[Effect of the device]

 As described above, according to the present invention, the masking process in the band-shaped different color coating can be performed easily and reliably, and the stepped part in the part where the color changes can be made small. Can be finished on a smooth and uniform beautiful painted surface, and it can be used in various ways, not limited to strips.

[Brief description of drawings]

FIG. 1 is a partially omitted perspective view showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a usage state.

FIG. 3 is a cross-sectional view of another example.

FIG. 4 is a sectional view of still another example.

FIG. 5 is a cross-sectional view of another embodiment.

FIG. 6 is a sectional view of still another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base material 2 Adhesive layer 4 Cover material 12 Cut part 22 Thick part 23 Thin part 25 Absorption layer 26 Auxiliary sheet

Claims (4)

[Scope of utility model registration request] 1. A tape-shaped base material, wherein a pressure-sensitive adhesive layer is formed on one surface of the base material, and the pressure-sensitive adhesive layer is left along both edges of the base material. Cover that covers the adhesive layer along the section
Masking material to which materials are attached. 2. A tape-shaped base material, wherein a pressure-sensitive adhesive layer is formed on one surface of the base material along both edges thereof, and the pressure-sensitive adhesive layers at both edges are connected to each other. Masking material with cover material. 3. A tape-shaped base material, wherein the base material is thin along both edges thereof, the central portion of the base material is formed thick, and the base material is formed on one surface of the base material. A masking material with adhesive layers on both edges. 4. The masking material according to any one of claims 1 to 3, wherein the thick portion of the cover material or the base material is provided with an absorber of a solvent or other volatile matter generated from the paint on the coated surface.