JP2009007428A - Stretchable release tape - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stretchable release tape preventing an adherend such as a hook from coming flying accompanied by the peeling. <P>SOLUTION: The stretchable release tape is obtained by forming a holding part 11 to be held when a double-sided adhesive tape 1 is peeled at either one terminal of the double-sided adhesive tape 1, and two cut lines 5a and 5b are formed at the other terminal so as to be symmetrical in the right and left direction by sandwiching a center line L in the tensile direction. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a stretch release tape that pulls and peels in parallel along a surface to be attached such as a wall surface, and more particularly relates to a stretch release tape that can safely remove an object to be attached such as a hook from a wall surface.

  One method of attaching posters or hooks to the wall without damaging the wallpaper is stretched release tape. For example, as shown in Patent Document 1, the stretch-release tape is a double-sided pressure-sensitive adhesive tape obtained by applying a pressure-sensitive adhesive to both surfaces of a base material having rubber elasticity, and by pulling the tape in parallel along the wall surface, The base material is gradually peeled off while being elastically deformed, and can be peeled off without polluting the wall surface.

  On the other hand, since the base material peels off while being elastically deformed, the double-sided adhesive tape just before peeling is stretched to the maximum extent, and the double-sided adhesive tape is attached because it tries to return to its original state by the elastic restoring force at the moment of peeling. There was a problem that the hooks etc. that were hit flew toward the hand side and hurt the fingers.

  In order to solve this problem, in Patent Document 1, when the double-sided pressure-sensitive adhesive tape is pulled by making a diagonal cut in a part of the double-sided pressure-sensitive adhesive tape, the direction of peeling is changed diagonally by the cut, It is devised not to fly toward the finger.

JP 2006-169389 A

  However, even in the above-mentioned Patent Document 1, although it is not the hand side, the double-sided adhesive tape is peeled off, and at the same time, the hook does not fly by the elastic restoring force, and the jumped hook is lost under the desk or the like. I remembered that.

  Then, in order to solve the subject mentioned above, this invention aims at providing the extending | stretching peeling tape in which to-be-attached objects, such as a hook, do not fly with peeling.

  In order to achieve the above-described object, the present invention has several features described below. The invention according to claim 1 includes a double-sided pressure-sensitive adhesive tape comprising adhesive layers on both sides of a tape base material having rubber elasticity, and attaching an object to be attached such as a hanger to a surface to be attached such as a wall surface. In the stretched release tape that is peeled off from the attached surface, the adhesive force of the adhesive layer is weakened by pulling the double-sided adhesive tape in a direction substantially parallel to the attached surface. A grip portion that is gripped when the double-sided pressure-sensitive adhesive tape is peeled off is provided on one end side, and on the other end side, the first and second cuts are left and right across the center line in the tensile direction. It is characterized by being provided symmetrically.

  According to a second aspect of the present invention, in the first aspect, the first cut is cut from one corner portion facing each other toward the center line, and the second cut is the other corner. It is characterized by being cut from the portion toward the center line.

  According to a third aspect of the present invention, in the first or second aspect, each of the cuts is inclined at a predetermined angle with respect to the center line.

  According to a fourth aspect of the present invention, in the first, second, or third aspect, the ends of the first and second cuts are not connected to each other.

  According to a fifth aspect of the invention, in any one of the first to fourth aspects, when the double-sided pressure-sensitive adhesive tape is peeled off, the gap between the attached surface and the attached object is along the cut. The remaining part of the cut adhesive tape is left behind, and the attached object is supported on the attached surface through the remaining part.

  A sixth aspect of the present invention is characterized in that, in the fifth aspect, 3 to 12% of the volume of the double-sided pressure-sensitive adhesive tape is left behind.

  A seventh aspect of the invention is characterized in that, in the fifth or sixth aspect, the remaining portion has a trapezoidal shape. Further, the invention described in claim 8 is characterized in that the remaining portion has an adhesive strength weakened by plastic deformation as compared with the adhesive strength of the double-sided adhesive tape before deformation.

  According to the present invention, when the double-sided adhesive tape is peeled off by providing two cuts obliquely from the corner of the stretch release tape toward the center, the tape breaks from the tip of each cut. Then, the trapezoidal remaining portion remains between the attached object and the wall surface, and the attached object is held by the remaining portion, so that it is possible to reliably prevent the flying.

  Next, embodiments of the present invention will be described with reference to the drawings, but the present invention is not limited thereto. FIG. 1 is an exploded perspective view of a stretched release tape according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of an essential part thereof, and FIGS. 3A and 3B are cut lines of the stretched release tape. It is an enlarged plan view.

  This stretch release tape 1 is composed of a double-sided pressure-sensitive adhesive tape in which a pressure-sensitive adhesive layer 3 is formed on both surfaces of a tape base material 2 having high elasticity, such as rubber, and an unused pressure-sensitive adhesive surface is formed on each pressure-sensitive adhesive layer. Protective sheets 4 and 4 are provided for protection. In the present invention, the protective sheets 4 and 4 are optional items.

  In this example, the tape base material 2 is formed by forming a polyethylene foam sheet having a thickness of 600 μm into a strip shape having a length of 62 mm and a width of 18.5 mm. In this example, the tape base material 2 is made of a polyethylene resin foam sheet, but any other material may be used as long as it is a base material that has rubber elasticity and stretch releasability. is there. Also, the size may be arbitrary depending on the specifications.

  The pressure-sensitive adhesive layers 3 and 3 have the same configuration, and in this example, an acrylic pressure-sensitive adhesive is uniformly applied with a predetermined thickness. In this invention, the adhesive layer 3 should just be 1.5 mm or less in thickness of the extending | stretching peeling tape 1 containing the adhesive layer 3, and the adhesive which comprises the adhesive layer 3 is to the specification of a to-be-attached object or a wall surface. Depending on the case, it may be arbitrarily selected.

  At one end (the left end in FIG. 1) of the stretch release tape 1, grips 11 and 11 are provided for gripping the stretch release tape 1 by hand when the stretch release tape 1 is peeled off. The gripping portions 11 and 11 are made of a synthetic resin film, and one surface is adhered along each pressure-sensitive adhesive layer 3 and 3. The specific configuration of the grips 11 and 11 is arbitrary. In addition, it is good also as the holding parts 11 and 11 weakening a part of adhesive layers 3 and 3 of the extending | stretching peeling tape 1 corresponding to the holding parts 11 and 11, without providing the holding parts 11 and 11. FIG.

  At the other end of the stretch release tape 1 (the right end in FIG. 1), when the stretch release tape 1 is peeled off, a part of the stretch release tape 1 is attached to the attachment surface (W in FIG. 4) and the attachment portion (FIG. 4). A cut 5 is provided for leaving a gap with F).

  As shown in FIG. 3 (a), the cut 5 includes a first cut 5a cut obliquely toward the center line L from one opposite corner 12a of the stretched release tape 1, and the other corner. And a second cut 5b cut obliquely from 12b toward the center line L, and they are provided symmetrically with respect to the center line L in the tensile direction.

  The first cut 5a and the second cut 5b are cut slits cut along the thickness direction of the stretched release tape 1, and the tips of the cuts 5a and 5b are not connected. In this example, each cut 5a, 5b is a cut slit, but as shown in FIG. 3 (b), perforations 5c may be provided in which the ends of each cut 5a, 5b are not connected.

  According to this, when the stretch release tape 1 is used, that is, when being attached to the wall surface W, the ends of the cuts 5a and 5b are not connected to each other, thereby extending the suspension force related to the hook F. It can be received on the entire surface of the release tape 1.

  In this example, each of the cuts 5a and 5b is punched in the thickness direction of the stretched release tape 1, but may be a perforation or a half-cut groove, and the tensile stress along the cuts 5a and 5b during stretching. The shape is arbitrary as long as it can be concentrated and separated.

  Each of the cuts 5a and 5b may be provided such that when the stretch release tape 1 is peeled off, the remaining 3 to 12% of the volume of the stretch release tape 1 is left between the wall surface W and the hook F. preferable.

  That is, as shown in FIG. 3A, each of the cuts 5a and 5b has a length A in the tensile direction from the base end to the tip of 3 to 6 mm, and the distance between the tips of the cuts 5a and 5b. By being provided so that B is 0.3 to 4 mm or less, the trapezoidal remaining portion 2a as shown in FIG. 6A remains between the wall surface W and the hook F when peeled off. It is.

  In addition, after the stretch release tape 1 is cut off, the hook F is held on the wall surface W by the remaining portion 2a, so that the hook F does not fly to the hand at the time of peeling, and the hook F can be removed with a small force. Easy to do. The remaining portion 2a has a weakened elastic force due to plastic deformation when the stretched release tape 1 is stretched, and can be peeled off more easily than usual.

  Next, an example of a procedure for using the stretched release tape 1 of the present invention will be described with reference to the drawings. First, as shown in FIG. 1, after peeling off one of the protective sheets 4, 4 provided on both surfaces of the stretch-release tape 1, the adhesive surface 3 is adhered along the surface to be bonded of the hook F.

  Next, as shown in FIG. 4, the remaining protective sheet 4 is peeled off, and the exposed adhesive surface 3 is attached to the wall surface W. Thereby, the hook F is hold | maintained along the wall surface W via the extending | stretching peeling tape 1. FIG. At this time, it is preferable to attach so that the holding | grip part 11 of the extending | stretching peeling tape 1 may be exposed to the lower end of the hook F. FIG.

  When removing the hook F from the wall surface W, first, as shown in FIG. 4 and FIG. 5A, the gripping portion 11 of the stretch release tape 1 is gripped from the lower end of the hook F with one hand and the other hand is used. Press the hook F lightly.

  Next, the grip portion 11 is pulled downward along the wall surface W. Thereby, as shown in FIG.5 (b), the extending | stretching peeling tape 1 is extended while elastically deforming downward so that it may be constricted, and it propagates to each cut | interruption 3a, 3b, and each cut | interruption 3a, 3b Will be cut off.

  Furthermore, when it is peeled off, as shown in FIG. 5 (c), the upper end of the stretch release tape 1 is concentrated at the tip side of each cut 5a, 5b, and the tip part is extremely constricted, As shown in FIG. 5 (d) and FIG. 6, the stress is concentrated on the tips of the cut lines 5a and 5b, and the stretch-release tape 1 is divided.

  Accordingly, as shown in FIGS. 6A and 6B, the main body of the stretch release tape 1 falls out between the hook F and the wall surface W, and the hook F is held by the remaining portion 2a. The hook F can be prevented from flying by the elastic restoring force of the tape 1.

  By hooking the hook F left on the wall surface W lightly in the left-right arrow direction of FIG. 6A or the front arrow direction of FIG. 6B, the hook F can be removed with a small force. Finally, the stretched release tape 1 is completely removed by peeling off the remaining portion 2a remaining on the attached surface by hand.

  In this example, each of the cuts 5a and 5b is cut from the corners 12a and 12b of the stretched release tape 1 toward the center, but it is sufficient if the remaining part 2a can be formed. It is optional according to the specifications. That is, as shown in FIG. 7A, the cut lines 5a and 5b may be cut from the part of the opposite sides of the stretched release tape 1 toward the center line L.

  Moreover, each cut | interruption 5a, 5b should just be provided in the right and left mutually on both sides of the centerline L. That is, it may be composed of straight lines as in this example, or may be an arcuate curve as shown in FIG. 7B, and the shape is arbitrary. In this example, the cut lines 5a and 5b are symmetric with respect to the center line L, but may be asymmetric.

The disassembled perspective view of the extending | stretching peeling tape which concerns on one Embodiment of this invention. Sectional drawing of the principal part of the said extending | stretching peeling tape. (A) The enlarged front view of the cut | interruption of an extending | stretching peeling tape, (b) The expansion front view which shows the modification of the said cut | interruption. The schematic diagram of the state which attached the hook to the wall surface through the extending | stretching peeling tape. (A)-(d): The schematic diagram which shows the flow of the peeling procedure of an extending | stretching peeling tape. (A), (b) The front view and side view of the state in which the remainder remained in the hook part. (A), (b) The front view which shows the modification of a cut | interruption.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Stretching peeling tape 2 Tape base material 2a Remaining part 3 Adhesive layer 4 Protective sheet 5 Cut 5a 1st cut 5b 2nd cut 11 Holding part 12a, 12b Corner | angular part F Hook W Wall surface

Claims (8)

A double-sided pressure-sensitive adhesive tape that includes a pressure-sensitive adhesive layer on both surfaces of a tape base material having rubber elasticity, and that attaches an object to be attached such as a hanging tool to a surface to be attached such as a wall surface, By stretching in a direction substantially parallel to the surface, the adhesive force of the pressure-sensitive adhesive layer is weakened, and in the stretch release tape that is peeled off from the attached surface,
One end of the double-sided pressure-sensitive adhesive tape is provided with a gripping part that is gripped when the double-sided pressure-sensitive adhesive tape is peeled off, and the first and second cuts are at the center in the tensile direction on the other side. A stretch release tape characterized by being provided on the left and right sides of a wire.   The first cut is cut from one opposite corner to the center line, and the second cut is cut from the other corner to the center line. The stretched release tape according to claim 1, wherein   The stretch release tape according to claim 1 or 2, wherein each of the cuts is inclined at a predetermined angle with respect to the center line.   The stretch release tape according to claim 1, 2 or 3, wherein ends of the first and second cuts are not connected to each other.   When the double-sided adhesive tape is peeled off, the remaining part of the adhesive tape cut along the cut is left between the attached surface and the attached object, and the attached object is left through the remaining part. The stretch-release tape according to any one of claims 1 to 4, wherein the stretch-release tape is supported by the attached surface.   The stretched release tape according to claim 5, wherein 3 to 12% of the volume of the double-sided pressure-sensitive adhesive tape is left behind.   The stretched release tape according to claim 5 or 6, wherein the remaining portion has a trapezoidal shape.   8. The stretched release tape according to claim 5, wherein the remaining portion has an adhesive strength weakened by a plastic deformation as compared with the adhesive strength of the double-sided adhesive tape before the deformation.

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