JP2003034779A - Masking tape - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a masking tape that can easily be identified from a substrate, and correctly be adhered on a target place, and can give an excellent marking effect when filling a filler or applying a paint. SOLUTION: An edge line 11b for marking, which has a different color sense from the other parts, is put on at least either one side-end of a left or right side of a tape substrate 11 composed of a transparent plastic film and in the length direction along a margin of the tape substrate 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a masking tape, and more specifically, to a case where a waterproof portion of a structure is filled with a caulking agent or a sealing agent, or a portion where makeup is required is painted. In addition, the present invention relates to a masking tape used to cover up a peripheral portion of a target portion.

[0002]

2. Description of the Related Art For example, a joint between a window frame and a wall of a building,
The joint between the wall panels, the joint between the bathtub and the wall in the bathroom, and the like are waterproofed by filling a filler such as a caulking agent or a sealing agent.
A masking tape is usually used for this waterproofing treatment, and by covering the peripheral portion of the waterproof portion with this masking tape, the filler is prevented from sticking out and adhering to the portions other than the waterproof portion. That is, as shown in FIG. 7, the masking tape 3 is stuck in parallel along the joints 1 on the wall surfaces of the members 2 and 2 having the joints 1 to be waterproofed therebetween, and in that state, inside the joints 1 After the filling agent 4 is filled in, the masking tape 3 is peeled off so that the filling agent 4 can be accurately filled in the joint 1.

In this case, what is important is to adhere the masking tape 3 straight and parallel to the joint 1 with high precision so as not to cause partial wrinkling or rising. If the tape is bent and stuck, or if there are wrinkles or bulges, it is not possible to fill the filler 4 straightly only in the necessary places, or the filler may peel off at the wrinkles or bulges, or
It is easy to cause inconveniences such as the filler penetrating inside the wrinkles and the floats, the tape is easily peeled off, and the filler is largely extruded and adhered to a portion other than the joint.

However, this type of masking tape is generally transparent, and when the masking tape is attached to an object, the color of the object can be seen through, so that the masking tape attached and the base can be clearly identified. It is easy to do. For this reason, when applying the masking tape along the joints etc., it is not possible to apply it accurately while visually observing whether it is attached straight or whether there are wrinkles or rises. It was difficult and had poor workability. Moreover, even when the filler is filled along the attached masking tape, it is difficult to distinguish the masking tape from the base, so it is difficult to fill the masking tape so that it does not protrude to the left and right along the tape. .

[0005]

SUMMARY OF THE INVENTION The technical problem of the present invention is that it can be easily distinguished from the groundwork and can be accurately adhered to the target area, and that it is necessary to fill the filler and apply the paint. It is to provide a masking tape that also excels in the effect of marking.

[0006]

In order to solve the above-mentioned problems, according to the present invention, at least one of the left and right side ends of a tape substrate made of a transparent plastic film is provided with another part. The masking tape is characterized in that edge lines for markings having different colors are provided in the longitudinal direction along the edge of the tape base material.

In the masking tape having the above-mentioned structure, the side edge provided with the edge line is directed to the waterproof target portion or the coating target portion side, and the edge line is attached along the target portion. At this time, even if it becomes difficult to distinguish between the tape and the ground by seeing the ground through the tape, the edge line has a different color feeling from the other portions, and therefore the edge line is clearly defined. Can be identified. Therefore, by sticking the tape while using the edge line as a mark, the tape can be stuck straight and accurately along the target portion. In addition, when wrinkles, bulges, etc. occur, they can be immediately recognized by the bending of the edge lines. Therefore, by using this edge line as a mark, it is possible to reliably prevent wrinkles, bulges, etc. from occurring.

Further, when the filler is filled or the paint is applied along the pasted masking tape, the edge line is used as a reference to prevent the protrusion of the filler or accurately fill it. It can be applied. That is, since the edge lines are easy to identify and have a narrow width, when filling or applying a filler or a paint along the edge lines, if they are over-protruded, the edge lines are suddenly thinned or discontinuous. Will be. Therefore, by preventing such thinning of the line and discontinuity of the line, it is possible to accurately fill or apply the filler or the paint so as not to squeeze out.

In the present invention, it is preferable that the edge line has a constant width, and the width is 1/4 or less of the width of the tape base material. Specifically, 1-5m
A width of about m is desirable.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred representative embodiments of the masking tape according to the present invention will be described below in detail with reference to the drawings. The masking tape 10A of the first embodiment shown in FIGS. 1 and 2 is a tape substrate 1 having a constant width W.
The pressure-sensitive adhesive layer 12 is provided on the back surface of the sheet 1, and the release paper 13 is adhered onto the pressure-sensitive adhesive layer 12 and rolled into a roll.

The tape base material 11 is made of a plastic film such as polyester or polyolefin, and is transparent and has a wide and constant width in the main tape portion 11.
a, and a mark edge line 1 having a narrow width and a fixed width, which is attached to one of the left and right side end portions of the tape main body 11a.
1b and. The edge line 11b extends in the longitudinal direction of the tape along the edge of the tape base material 11 and has a different color impression from that of the tape main portion 11a.

The term "transparency" as used herein includes not only colorless and transparent but also translucency in a state of being colored in some color. Further, “different color feeling” means a case where one or both of the color and the color tone are different. When the color tone is different, the edge line 11b is made darker than the tape main body portion 11a so that the edge line 11b is not colored.
Of the tape main body 11a is preferably lower than that of the tape main body 11a, and more preferably, the color tone is darkened so that the edge line 11b becomes substantially opaque or close to opaque. On the other hand, when the color of the edge line 11b is different from that of the tape main body 11a, the edge line 11b may have a certain degree of transparency, but it is preferably opaque or nearly opaque. is there.

As shown in FIG. 3, the edge line 11b can be formed by coating the front surface or the back surface of the tape base material 11 with a constant width H along the edge thereof. Alternatively, as shown in FIG. 2, when the tape base material 11 is formed, the material portions corresponding to the tape main body portion 11a and the edge line 11b are adjusted to different colors or tones and integrally molded, so that at the same time as the molding, The edge line 11b can be formed.

Masking tape 10A having the above structure
4 is used to fill a waterproofing target portion such as a joint with a filler such as a caulking agent or a sealing agent.
As shown in, the side edge of the masking tape 10A provided with the edge line 11b is directed to the joint 15 side, and the edge line 11b is attached to the wall surfaces 16 on both sides of the joint 15 along the joint 15. . At this time, even if it becomes difficult to distinguish between the tape main body 11a and the base by seeing the base, that is, the wall surface, from the transparent tape main body 11a, the edge line 11b has the color appearance of the tape main body 11a. Since it is different from 11a, this edge line 11b can be clearly identified.
Therefore, by sticking the tape while using the edge line 11b as a mark, the tape can be stuck straight and accurately along the target portion. Moreover,
If wrinkles or uplifts occur, the above edge line 11b
Since it can be immediately recognized by the bending of the curve, wrinkles, rising, etc. can be surely prevented by using the edge line 11b as a mark.

Further, the masking tape 10 adhered above
When the filling agent 17 is filled along the line A, the edge line 11b is used as a reference to follow the line exactly or to fill the line 11b so as to slightly overlap the line 11b, thereby preventing a large protrusion and accurately filling the line. can do. That is, since the edge line 11b is easy to identify and has a narrow width, when the filler 17 is filled along the edge line 11b, the edge line 11b protrudes too much to the left and right,
At that portion, the edge line 11b sharply becomes thin or breaks. Therefore, by advancing the work so as not to cause such a thinning or discontinuity of the line 11b, the filler 17 can be accurately filled in the target portion without protruding. The masking tape 10A can be used in the same manner when coating is applied to a portion where makeup is required, and the effect of the masking tape 10A is the same as when the filler is filled.

According to various experiments conducted by the present inventor, when the width H of the edge line 11b is ¼ or less of the width W of the tape substrate 11, it is particularly 1 to 5 m.
When it is about m, it is not only the sharpest and easiest to see, but it is also easy to confirm whether it is straight or bent, and it is recognized when it is filled or applied with the filler or paint protruding. I found it easy to do.

In the masking tape 10A of the first embodiment, the edge line 11b is provided only on one side edge of the tape base material 11, but the masking tape 10B of the second embodiment shown in FIG. Similarly, the edge lines 11b may be provided on both side edges. In this case, it is possible to make the edge lines 11b, 11b on both side edges different in width, color sense, and the like. The other configurations of the masking tape 10B are substantially the same as the masking tape 10A of the first embodiment.

Further, in the masking tapes 10A and 10B of the above-mentioned respective embodiments, the release paper 13 is provided on the back surface of the tape base material 11.
However, the tape substrate 11 may be directly wound in a roll shape without attaching the release paper 13 as described above.

[0019]

As described above, according to the present invention, it is possible to easily distinguish the substrate from the substrate and accurately attach it to a target portion, and further, it is possible to perform a marking effect in filling a filler or applying a paint. You can get a masking tape that won.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of a masking tape according to the present invention.

FIG. 2 is an enlarged cross-sectional view of the masking tape of FIG.

FIG. 3 is an enlarged cross-sectional view showing a modified example of the masking tape.

FIG. 4 is a cross-sectional view showing an example of use of the masking tape.

FIG. 5 is a plan view of FIG.

FIG. 6 is a partial plan view showing a second embodiment of the masking tape according to the present invention.

FIG. 7 is a plan view of relevant parts showing a state of using a conventional masking tape.

[Explanation of symbols]

10A, 10B masking tape 11 Tape base material 11b Edge line H, W width

Claims (3)

[Claims] 1. A tape base material made of a transparent plastic film is provided with a mark edge line having a color difference different from that of the other portion on at least one of the left and right side ends of the tape base material. A masking tape characterized by being provided in the longitudinal direction along the edge. 2. The masking tape according to claim 1, wherein the edge line has a constant width, and the width is 1/4 or less of the width of the tape base material. 3. The masking tape according to claim 1, wherein the width of the edge line is 1 to 5 mm.