JP3122309U - Adhesive tape with seam - Google Patents

Abstract

[PROBLEMS] To rewind an adhesive tape roll without causing problems such as the double-sided adhesive tape being peeled off and the adhesive tape at the connection portion being overlapped over one turn to be rewound. An adhesive tape that can be reliably connected and rewound.
There is a terminal 5 on one side of a substrate 1 that is folded back with an adhesive layer to which an adhesive tape 4 having an adhesive layer 2 is connected facing outward. In addition, there is a terminal 10 that is folded back with the adhesive layer 7 of the adhesive tape 8 to be connected outside. The pressure-sensitive adhesive layers of the folded ends 5 and 10 are bonded to each other to form a pressure-sensitive adhesive tape roll in which the joint portion 11 is formed by bonding them together. As a result, problems such as the above double state do not occur.
[Selection] Figure 1

Description

  The present invention relates to an adhesive tape having a seam portion.

If the adhesive tape is continuous without a seam, it can be used in the same way regardless of where it is cut.
However, in particular, in a custom-made product printed on a base material, the length of the original printed material is not always an integral multiple of the length of one roll of the adhesive tape roll as a product. When the roll is wound halfway, the supply of the tape may end.

In order to eliminate such a situation, if the tape remaining halfway is discarded, a seamless adhesive tape roll can be obtained with certainty.
However, it is not preferable to discard the tape remaining halfway, which increases costs and wastes resources.
Therefore, when the adhesive tape rolls up and ends when the adhesive tape rolls, the adhesive tape is connected.

Conventionally, as shown in FIG. 4, this connected adhesive tape has a back treatment layer 33 on the back side (opposite to the adhesive layer) 33 of the end 32 of the adhesive tape 31 on the connecting (adding) side. The double-sided pressure-sensitive adhesive tape 34 is attached by removing with the organic solvent, and the double-sided pressure-sensitive adhesive tape 34 is bonded to the adhesive layer 38 at the end 37 of the pressure-sensitive adhesive tape 36 to be connected (added), and connected. It is set as the adhesive tape roll by winding up to a roll (FIGS. 4-A and B).
However, when the adhesive tape roll connected in this way is used, when the connected adhesive tape 31 is rewound (FIG. 4-C) and reaches the connection part (seam part), it is peeled off. The double-sided adhesive tape 34 that should not be peeled off may be peeled off from the back side 33 of the connected adhesive tape 31, and the double-sided state 39 in which the connected tape 31 and the connected adhesive tape 36 are overlapped and bonded together. Although it is rewound (FIG. 4-D), the adhesive tape does not break at the connecting portion, but this overlapping and bonded double state 39 will continue for one round of the roll of adhesive tape. (FIGS. 4-D and E) There was a problem that it was extremely inconvenient in using the adhesive tape.

In addition, without using the double-sided pressure-sensitive adhesive tape 34, there is also a type in which the pressure-sensitive adhesive tape to be connected and the pressure-sensitive adhesive tape to be connected are overlapped and bonded by heat and pressure using a bonding apparatus having a heat and pressure head. It is not possible to simply perform the work in terms of installing a bonding apparatus. (Patent Document 1)
JP 2004-200126 A

  In the present invention, in the adhesive tape with a seam, when the tape is rewound, the connection part does not come off, or the adhesive tape is overlapped over the entire circumference and the double state is not caused. It is intended to obtain an adhesive tape that can be securely connected and rewinded with chitin.

In the present invention, the end of the adhesive tape having the adhesive layer on one side of the base material, folded back with the adhesive layer of the adhesive tape to be connected outside, and the adhesive tape of the adhesive tape to be connected turned up outside A pressure-sensitive adhesive tape having a joint portion is formed by pasting and joining the ends and the adhesive layers at the ends folded back to each other.
Further, when the adhesive tape bonded to the joint is folded on the back side of one adhesive tape of the seam portion, the peelable back surface treatment layers of both back portions of the adhesive tape facing each other at the folded portion Is removed, and the opposite portion of the back surface of the pressure-sensitive adhesive tape is attached with an adhesive or a double-sided pressure-sensitive adhesive tape, thereby fixing the seam portion.

  According to the present invention, in a pressure-sensitive adhesive tape having a pressure-sensitive adhesive layer on one side of a base material having a connection portion, when the pressure-sensitive adhesive tape is rewound, the connection portion (seam portion) is detached, or the pressure-sensitive adhesive tape extends over one round. It can be reliably rewound without causing problems such as overlapping double states, and can be used without worrying about the seam.

The terminal 5 of the pressure-sensitive adhesive tape 4 to be connected having the pressure-sensitive adhesive layer 2 on one side of the substrate 1 is folded back so that the pressure-sensitive adhesive layer 2 faces outside.
On the other hand, the terminal 10 of the adhesive tape 8 to be connected having the adhesive layer 7 on one side of the substrate 6 is also folded back so that the adhesive layer 7 is on the outside.
The adhesive layer 7 at the folded end 10 of the pressure-sensitive adhesive tape 8 to be connected and the adhesive layer 2 at the folded end 5 of the pressure-sensitive adhesive tape 4 to be connected are bonded together to form a joint portion 11 (see FIG. 1-A). Since the adhesive layers 2 and 7 are bonded to each other, the seam portion 11 is not peeled off from the bonded seam portion 11 even when the adhesive tape is pulled.

  When the connected adhesive tape 4 is wound after the seam portion 11 is formed, the seam portion 11 is naturally brought down to the back side of the adhesive tape 8 by the connected adhesive tape 4 and wound one after another. Therefore, if it continues to wind up as it is, it will wind up to predetermined length and will become an adhesive tape roll.

  When the pressure-sensitive adhesive tape roll is used, if it is rewound, the pressure-sensitive adhesive layers 4 and 8 that are connected to each other do not peel off because the pressure-sensitive adhesive layers are bonded together. Therefore, it can be rewound continuously and smoothly without problems such as a double state where the adhesive tape is overlapped over the entire circumference as in the prior art, and can be used without any trouble.

When the pressure-sensitive adhesive tape roll is rewound, the seam portion 11 has a pressure-sensitive adhesive layer 2 of the pressure-sensitive adhesive tape 4 connected to the pressure-sensitive adhesive layer 7 of the pressure-sensitive adhesive tape 8 to be connected. Since there is a peelable back surface treatment layer on the opposite back surface, it may stand up from the back surface side of the joined adhesive tape 8 and may be inconvenient.
In such a case, when the joint 11 is formed by connecting the two adhesive tapes 4 and 8, as shown in FIG. 2, either the adhesive tape 8 to which the joint 11 is connected or the adhesive tape 4 to be connected is selected. The seam portion 11 is tilted to the back side, the back side treatment layer on the back side of any pressure-sensitive adhesive tape and the back side of the seam portion 11 that is continuously opposed thereto is removed, and the seam portion 11 is bonded with an adhesive or double-sided pressure-sensitive adhesive tape 12. Is attached to the back side of the adhesive tape to form an adhesive tape roll.
In this way, when the adhesive tape roll is rewound, the seam portion 11 is bonded to the back side of the adhesive tape 8 in FIG. 2 and rises from the portion of the adhesive tape 8 to which the seam portion 11 is connected. It can be used in the same manner as an adhesive tape with almost no seams.

  Further, as shown in FIG. 3, the end 10 of the adhesive tape 8 to be connected is folded back with the adhesive layer 7 facing outward, and the end 5 of the adhesive tape 4 to be connected to the adhesive layer 7 of the end 10 is folded. The pressure-sensitive adhesive layer 2 at a position 51 slightly away from the past is pasted and joined to the palm joint. The joint part 11 of the pressure-sensitive adhesive tape 8 to be connected and the back-side peelable back surface treatment layer (opposite surface side of the pressure-sensitive adhesive layer 7) are removed, and the back side facing the seam part 11 is adhesive. Alternatively, if the adhesive tape 2 is attached to the back side of the adhesive tape 8 connected by the adhesive layer 2 at the end portion 5 of the adhesive tape 4 to be connected together with the double-sided tape 12, the adhesive tape can be more securely joined. It becomes a roll, and pattern matching when there is a display on the back side of the adhesive tape can be easily performed.

  As the above-mentioned pressure-sensitive adhesive tape, various types of pressure-sensitive adhesive tapes can be used for joining, particularly in pressure-sensitive adhesive tapes in which the self-adhesive action between the pressure-sensitive adhesive layers is larger than the pressure-sensitive adhesive action on the adherend. It is effective.

  Adhesive tape connected as shown in FIG. 1 as described above using vegetable binding tape [Tabanara (registered trademark) tape: manufactured by Nichiban Co., Ltd.] for binding spinach, spring chrysanthemum and other vegetables The end of the adhesive tape is folded back with the pressure-sensitive adhesive layer outside, the end of the pressure-sensitive adhesive tape to be connected is folded back with the pressure-sensitive adhesive layer outside, and the pressure-sensitive adhesive layers at the ends of both pressure-sensitive adhesive tapes are bonded to each other and connected. It was set as the adhesive tape roll wound so that it might become.

(Comparative example)
As shown in FIG. 4, a double-sided pressure-sensitive adhesive tape 34 is attached to the back side 33 (opposite side of the pressure-sensitive adhesive layer) 33 of the terminal 32 of the adhesive tape 31 to be connected (added), and this double-sided pressure-sensitive adhesive tape 34 is connected. A pressure-sensitive adhesive tape roll was formed by connecting and bonding to the pressure-sensitive adhesive layer 38 at the end 37 of the pressure-sensitive adhesive tape 36 on the side to be joined. Others were the same as in the example.

(Test / Test results)
The thing of the said Example and the comparative example was prepared for every 1000 volume, and the rewinding test was done.
Number of defects:
Example: No breakage or other problems occurred at the seam.
Comparative example: The tape 31 connected at the joint and the adhesive tape 36 connected overlap.
2 inconveniences of being rewound in the double state 39 where one round is pasted together
occured.
As can be seen from the results of this test, it can be seen that the example is an adhesive tape roll that is securely connected.

Explanatory drawing of the Example of this invention Expansion explanatory drawing which shows the modification of the seam part of FIG. Expansion explanatory drawing which shows the other modification of the seam part of FIG. Explanatory drawing of the conventional connection part

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Base material of adhesive tape to be connected 2 Adhesive layer of adhesive tape to be connected 4 Adhesive tape to be connected 5 End of adhesive tape to be connected 6 Base material of adhesive tape to be connected 7 Adhesive layer of adhesive tape to be connected 8 Connection Adhesive tape 10 End of adhesive tape 11 to be connected 11 Seam
12 Double-sided adhesive tape

Claims (4)

Provided with two adhesive tapes having an adhesive layer on one side of the base material connected to each other, the end of the adhesive tape of the connected adhesive tape turned outward, and the adhesive layer of the adhesive tape to be connected outside The adhesive tape which has the joint part which bonded and joined the adhesive layer of the terminal folded back | folded and the both ends folded back to the palm. The pressure-sensitive adhesive tape has a peelable back surface treatment layer on the back side opposite to the pressure-sensitive adhesive layer. The seam portion according to claim 1, wherein the folded back portion and the back treatment layer of both back portions of the opposing adhesive tape are removed, and the opposing portions of the adhesive tape are attached with an adhesive or a double-sided adhesive tape. Having adhesive tape. Adhere the end of the adhesive tape connected to the outside with the adhesive layer folded outward and the adhesive layer slightly away from the end of the adhesive tape connected to the adhesive layer at the folded end The back surface side facing the seam portion is pasted with an adhesive or a double-sided adhesive tape. The adhesive tape having a joint portion according to claim 2, wherein an end portion of the adhesive tape to be connected is attached to the back side of the adhesive tape to be connected. The said adhesive tape is an adhesive tape which has a seam part in any one of Claims 1-3 currently formed so that the self-adhesion effect | action of adhesive layers may be larger than an adhesive effect.

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