JP3889561B2 - Release paper structure of adhesive sheet - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a structure of a release paper attached to an adhesive sheet such as an emergency bandage or an external patch.
[0002]
[Prior art]
The structure of the release paper that can be attached to the first-aid adhesive plaster and external patch as described above is one with a simple release paper attached to the entire adhesive surface, and the ease of peeling and the convenience of application are improved. There are known two papers with two release papers attached. In particular, in the case where two release papers are attached, as shown in FIG. 1, the end of one release paper 10 is folded back, and the end of the other release paper 11 is overlaid on each of them. The end portions of the release papers 10 and 11 are not attached to the adhesive surface. As described above, the strip-like portions 12 and 13 not attached to the adhesive surface are formed on the portions that can be picked by the fingertips of both hands when the user peels off the release paper, that is, the pick pieces.
[0003]
By the way, in the conventional two-sheet type release paper structure, with the release papers 10 and 11 attached, both ends of the adhesive sheet 14 are gripped with both hands, the sheet is bent, and the upper tab 13 is lifted to rise. The release piece 11 is partially peeled off with one hand and the release paper 11 is peeled off halfway. Next, the folded piece 12 that appears from the lower side is picked with the other hand, and the two hands are respectively picked. Both release papers 10 and 11 can be peeled from the adhesive sheet 14 by opening the pieces 12 and 13 to the left and right. In this way, the upper and lower tabs 12 and 13 can be gripped in order from the top, that is, the upper and lower tabs 12 and 13 are not picked at once by one hand. It is necessary to make the upper side piece 13 sufficiently longer than the lower folded piece 12 so that only the first piece 13 can be reliably picked with one hand. With this configuration, when the user hits the belly of the finger with the edge 16 of the upper knob 13 and hits it, the finger of the finger is placed on the edge 15 of the lower folded knob 12. Only the upper knob 13 can be reliably beaten without hitting at the same time.
[0004]
[Problems to be solved by the invention]
However, in the configuration as described above, the upper knob 13 must be sufficiently longer than the lower folded knob 12. Regarding release paper material, we want to save as much waste as possible. However, the part where the upper tab 13 is longer than the lower folded tab 12 is rejected. Absent. In addition, an image in which both knobs are not aligned is not wiped out. However, if the upper tab 13 is made the same length as the lower folded tab 12 and both edges are aligned, even if only the upper tab 13 is rubbed, the edges of both tabs are easily It does not separate and becomes very difficult to beat.
[0005]
Accordingly, the present invention provides a release paper structure that can easily roll only the upper tab while eliminating wasteful use of the release paper material for the two-sheet type release paper structure of an adhesive sheet.
[0006]
[Means for Solving the Problems]
The release paper structure of the pressure-sensitive adhesive sheet according to the present invention has the following configuration in order to solve the above-described problems. That is, in the structure of the release paper attached to the adhesive surface of the adhesive sheet, the first release paper and the second release paper attached to the adhesive surface so as to cover the adhesive surface in half. The first release paper has a first tab that is folded back at the end, the second release paper has a second tab that is stacked on the first tab, and the first tab is The edge shape is given in the form of an uneven line consisting of alternating convex portions and concave portions, and the edge shape of the second knob is relative to the edge shape of the first knob. The first knob piece and the second knob piece are arranged so as to be shifted from each other at the end edges of the first knob piece and the second knob piece.
[0007]
Moreover, the edge shape of the said 2nd knob piece may be given by the same shape as the edge shape of the said 1st knob piece.
[0008]
In particular, it is preferable that the second knob is overlapped on the first knob with a length equal to the folded length of the first knob.
[0009]
By being configured in this way, the lower first knob and the upper second knob have almost the same length (the upper second knob is lower than the lower first knob). The projection of the upper tab and the projection of the lower tab are shifted from each other, that is, the upper tab of the finger When touching the edge of the convex part of the upper knob, the belly of the finger does not hit the edge of the convex part of the lower knob, so the upper knob and the lower knob naturally Separated, only the upper tab can be picked.
[0010]
In particular, when the edge shape of the second knob piece is given in a complementary shape to the edge shape of the first knob piece, it is 1 with a cutter having the same irregular line-shaped blade as the edge of the edge shape. The first and second release papers can be obtained by cutting the release paper.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 2 is an enlarged plan view showing a main part of the release paper structure of the pressure-sensitive adhesive sheet according to the present invention. The side that has been smudged is the upper release paper 21, and the side that has not been smudged is the lower release paper 20. FIG. 3 is an exploded perspective view showing the release paper structure of the adhesive sheet of FIG. In the figure, 24 is an adhesive sheet. One end of the release paper 20 on the lower side is folded back to form a knob piece 22, and a leading edge 25 thereof is formed into a concavo-convex line in which a circular arc meanders smoothly. On the other hand, the leading edge 26 of the upper release paper 21 is also formed into a concavo-convex line in which a circular arc smoothly snakes. In this way, two release papers having complementary concavo-convex linear edges 25 and 26 are obtained by cutting one release paper with a cutter having the same concavo-convex linear blade as the edges 2 A sheet of release paper can be applied. That is, it is not necessary to provide two lines for supplying two release papers on the production line, and a single line for supplying one release paper is cut with a blade having the same shape as the edge. Can be supplied as two release papers.
[0012]
The line connecting the leading ends of the convex portions of the upper release paper 21 and the line connecting the leading ends of the convex portions of the lower release paper 20 coincide with each other, and the knobs 22 and 23 have the same length. The leading edge 26 of the upper release paper 21 and the leading edge 25 of the lower release paper 20 are arranged so as to be shifted from each other so that the convex portions do not overlap with each other. As shown in FIG. 2, the most aesthetic arrangement is that the convex part of the upper release paper 21 and the concave part of the lower release paper 20 overlap at the same position, and the convex part of the upper release paper 21 and the convex part of the lower release paper 20. It may be preferred that the parts overlap each other at the same position.
[0013]
In the release paper structure configured in this way, the upper and lower knobs 22 and 23 have the same length, but the leading edges 25 and 26 are arranged so that the convex part and the concave part are shifted from each other. When the user tries to hit the tip edges 25 and 26 with the belly of his / her finger, the upper and lower knobs 22 and 23 can be easily separated, and only the knob 23 of the upper release paper 21 can be lifted.
[0014]
4 and 5 are enlarged plan views showing main portions of different embodiments in the release paper structure of the pressure-sensitive adhesive sheet according to the present invention. In the embodiment of FIG. 4, one end of the lower release paper 30 is folded back to form a knob piece 32, and the leading edge 35 is formed into a concavo-convex line that bends a straight line and zigzags. On the other hand, the leading edge 36 of the upper release paper 31 is also formed into a concavo-convex line that bends in a straight line and zigzags. In the embodiment of FIG. 5, one end of the lower release paper 40 is folded back to form a knob piece 42, and the leading edge 45 is formed into an uneven line with a continuous concave semicircular arc. On the other hand, the upper release paper 41 has a leading edge 46 formed into a concavo-convex line having a continuous convex semicircular arc. In either case, the leading edges of the upper and lower knobs are formed in a concavo-convex line shape complementary to each other, and two release papers having such an edge have the same concavo-convex line shape as the edges. Two release papers obtained by cutting one release paper with a cutter having a blade can be applied.
[0015]
Further, for example, the leading edge 45 of the knob 42 in the lower release paper 40 in the example of FIG. 5 is formed in a concavo-convex line shape in which the same convex semicircular arc as the leading edge of the knob in the upper release paper continues as shown in FIG. It is also possible. Of course, as shown in FIG. 7, it is also possible to make the front-end edges of the upper and lower knob pieces into an uneven line shape in which concave semicircular arcs are continuous. In these cases, both the leading edges are not complementary to each other but simply have the same irregular line shape. However, as in the examples of FIGS. The arrangement of the irregularities is shifted.
[0016]
In the above examples, both the upper and lower knobs have the same length and are arranged so that the irregularities of both are shifted. However, it is from an aesthetic point of view that both knobs have the same length. Of course, as would be most preferred, the upper tab may be slightly longer than the lower tab.
[0017]
【The invention's effect】
By being configured as described above, even if the lower knob piece and the upper knob piece have almost the same length, the convex portion of the upper knob piece and the convex portion of the lower knob piece are shifted. That is, when the upper part of the finger is placed on the edge of the convex part of the upper part of the finger, the upper part of the finger is the edge of the convex part of the lower part of the finger. Since it does not hit the part, the upper tab and the lower tab are naturally separated, and only the upper tab can be hit.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a release paper structure of a conventional pressure-sensitive adhesive sheet.
FIG. 2 is an enlarged plan view showing a main part of a release paper structure of an adhesive sheet according to the present invention.
3 is a perspective view showing a release paper structure of the pressure-sensitive adhesive sheet of FIG. 2. FIG.
FIG. 4 is an enlarged plan view showing the main part of another embodiment of the release sheet structure of the pressure-sensitive adhesive sheet according to the present invention.
FIG. 5 is an enlarged plan view showing a main part of another embodiment of the release sheet structure of the pressure-sensitive adhesive sheet according to the present invention.
FIG. 6 is an enlarged plan view showing a main part of another embodiment of the release paper structure of the pressure-sensitive adhesive sheet according to the present invention.
FIG. 7 is an enlarged plan view showing a main part of another embodiment of the release paper structure of the pressure-sensitive adhesive sheet according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Lower release paper 11 Upper release paper 12 Lower knob 13 Upper knob 14 Adhesive sheet 15 Front edge 16 of lower knob Upper edge 20 of upper knob 20 Lower release paper 21 Upper Release tab 22 Lower tab 23 Upper tab 24 Adhesive sheet 25 Tip edge 26 of the lower tab Tip edge 30 of the upper tab Lower release paper 31 Upper release paper 32 Lower tab Piece 33 Upper pick piece 35 Lower pick piece tip edge 36 Upper pick piece tip edge 40 Lower release paper 41 Upper release paper 42 Lower pick piece 43 Upper pick piece 45 Lower pick The tip edge 46 of the piece The tip edge of the upper pick piece

Claims (3)

In the structure of release paper affixed to the adhesive surface of the adhesive sheet,
A first release paper and a second release paper that are attached to the adhesive surface so as to cover the adhesive surface in half.
The first release paper has a first tab that is folded at an end,
The second release paper has a second knob that is stacked on the first knob;
The edge of the first knob is given in the form of concavo-convex lines consisting of convex portions and concave portions that are alternately continuous,
The edge of the second knob is given as a complementary shape to the edge of the first knob,
The release sheet structure of the pressure-sensitive adhesive sheet, wherein the first knob piece and the second knob piece are arranged such that the convex portions and the concave portions at the edge of each other are shifted from each other. In the structure of release paper affixed to the adhesive surface of the adhesive sheet,
A first release paper and a second release paper that are attached to the adhesive surface so as to cover the adhesive surface in half.
The first release paper has a first tab that is folded at an end,
The second release paper has a second knob that is stacked on the first knob;
The edge of the first knob is given in the form of concavo-convex lines consisting of convex portions and concave portions that are alternately continuous,
The edge of the second knob is given the same shape as the edge of the first knob,
The release sheet structure of the pressure-sensitive adhesive sheet, wherein the first knob piece and the second knob piece are arranged such that the convex portions and the concave portions at the edge of each other are shifted from each other. The release sheet structure of the pressure-sensitive adhesive sheet according to claim 1 or 2, wherein the second tab is overlaid on the first tab with a length equal to the folded length of the first tab.

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