JP3262545B2 - Double-sided adhesive sheet for curing materials - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to curing of inner walls and floors of elevators, curing of walls and floors in renovation work of houses, etc. The present invention relates to a double-sided adhesive sheet that is used for temporary curing protection with a curing member such as a cushion plate.

[0002]

2. Description of the Related Art Conventionally, curing of a cured surface such as a wall surface and a floor surface has been conventionally performed by attaching a double-sided adhesive sheet to a curing member such as a plywood prepared separately by a worker at a work site by peeling a release sheet on both sides. In general, a curing member is attached to the surface to be cured via the pressure-sensitive adhesive sheet for curing.

[0003]

In the conventional double-sided pressure-sensitive adhesive sheet, the release paper on the front and back sides is adhered to the sheet main body in an equal length and integral, and there is no knob. Not only is it necessary to attach a double-sided adhesive sheet each time, so much time and effort is required, and it is troublesome and workability is poor.
There is a problem that a large amount of peeled release paper comes out as garbage.

Further, when the storage member is peeled off from the cured surface and stored with the curing member attached thereto, or when transported and used again, dust adheres to the adhesive surface with the cured surface. There was a problem that the power became weak and it was difficult to use repeatedly.

SUMMARY OF THE INVENTION The present invention has been made in view of such problems, and an object of the present invention is to make the release paper on both sides extremely easy and capable of peeling off quickly, thereby improving workability. An object of the present invention is to provide a double-sided adhesive sheet for a curing material that can contribute.

Another object of the present invention is to provide a curing member, such as a plywood plate, which is adhered and placed in an attached state.
Not only can it be used repeatedly, but also when the curing members are stored and transported in layers, the curing members do not stick to the weakly adhered or adsorbed surface, improving workability and reducing costs. It is an object of the present invention to provide a double-sided adhesive sheet for a curing material which is excellent in economical efficiency.

[0007]

For this purpose, according to the present invention, one surface is a strongly adhesive surface which is adhered to a curing member such as a plywood, and the other surface is left on the cured surface. A sheet main body having a weak adhesive surface having an adhesive force capable of peeling without being adhered or an adsorbing surface capable of being adsorbed and desorbed, and one edge of the strong adhesive surface of the sheet main body being polymerized adhesive A wide release paper, the other edge of which extends slightly outward from the sheet main body so as to cover the weakly adhesive surface or the suction surface and serves as a knob, The strongly adhesive surface of the, including a non-adhesive edge as a knob portion on one of the adhered edges of the wide release paper and adhered release paper, the release paper, the release paper, High strength that has been peeled off and removed through the knob, which is the non-adhesive edge The attachment surface is adhered to the curing member, and the wide release paper is peeled off via a knob extending slightly outward from the sheet main body, and the exposed weak adhesion surface or adsorption surface is cured. It is used by being adhered or adsorbed to the cured surface such as the wall to be used, and after use,
While the adhesive member is still adhered to the curing member, and the weak release surface or the adsorption surface is covered again by the wide release paper, the adhesion surface or the adsorption surface is prevented from deteriorating, and a dustproof effect is obtained. The present invention is characterized in that the stacked curing members are prevented from adhering to the weakly-adhesive surface or the suction surface with a wide release paper in handling such as storage and transportation of the curing member.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings and the operation thereof. FIG. 1 is a plan view of an example of a double-sided adhesive sheet for a curing material according to the present invention, FIG. 2 is an enlarged cross-sectional view of a partly omitted line 2-2 in FIG.
3 is a plan view in a state where the release paper in FIG. 1 is developed, and FIG. 4 is an enlarged cross-sectional view of a partly omitted line along line 4-4 in FIG. The double-sided adhesive sheet includes a sheet main body and respective release papers having different widths covering both front and back surfaces of the sheet main body.

[0009]

EXAMPLES Specific examples will be described below. The sheet main body 10 has an appropriate width and length,
0, as shown in FIG. 2 and FIG. 4, one of the entire surfaces is a strong adhesive surface 11 having a strong adhesive force, and the other entire surface does not leave glue on the cured surface, and furthermore, the surface The adhesive layer 12 has a weak adhesive surface 12 that can be peeled off without leaving any traces on the surface, and has an adhesive force that can be reused.

Further, as shown in FIG. 5, the other entire surface of the sheet main body 10 is replaced with a weakly adherent surface 12 and an adsorbable and detachable adsorbing surface 14 to which an adsorbing sheet material 13 is adhered. Can be reused.

The adsorbing sheet material 13 adhered to the other entire surface of the sheet main body 10 via the strongly adhesive surface 11 is applied to one surface of a flexible and flexible film-like base material 15 such as polypropylene or polyethylene. Fine pores 1 by special foaming
The urethane foam adsorbing layer 17 having No. 6 is formed. More specifically, an anchor coating means (primer processing) is applied to one surface of the film-like base material 15,
Alternatively, a rough surface for enhancing adhesion is formed through a corona discharge treatment means, and then, the liquid urethane resin having extremely small particles has a roughness of about 0.3 to 2 mm on the rough surface through a urethane resin coating means. Adsorber structure having a continuous fine pore 16 which is spread and applied to a thickness and then subjected to foaming processing with an open-celled ring while applying heat, air, etc. through open-cell foaming means. The urethane foam adsorbing layer 17 is formed, and then subjected to a drying treatment through drying means (preferably at a temperature of 120 ° C.) in which any wind or hot air or the like is shut off.
It is assumed to be 3.

The suction sheet material 13 has a film base material 15 side through the strong adhesive surface 11 and a sheet main body 10.
The adsorbing surface 14 is adhered to and can be adsorbed and desorbed.

As shown in FIG. 1 to FIG. 5, one edge 21 of a release paper 20 which is wide across its width is superposed on the edge of the strongly adhesive surface 11 of the sheet main body 10. At the same time, the other edge portion is adhered by covering the weakly adhesive surface 12 or the suction surface 14, extending slightly outward from the sheet main body 10, and the edge portion is formed as a knob 22, By picking the knob 22, the weak adhesive surface 12 or the suction surface 1
4 allows the release paper 20 to be easily released.

The remaining strong adhesive surface 11 of the sheet main body 10 to which the edge 21 of the release paper 20 is adhered is
The non-adhesive edge as the knob 31 is separated from the release paper edge 2
The release paper 30 is adhered in a state where the release paper 3
Numeral 0 indicates that the knob 31 can be easily peeled off from the strongly adhesive surface 11 by pinching the knob 31.

As shown in FIG. 6, in the double-sided adhesive sheet thus constructed, the release paper 30 is peeled off by removing the knob 31 which is a non-adhesive portion, and is exposed. The adhesive surface 11 is adhesively fixed to the curing member 40, and the release paper 20 is picked up by the non-adhesive portion of the knob portion 22 and peeled off and developed. The cured surface 50 is protected by the curing member 40.

After use, as shown in FIG. 7, if the adhesive is peeled off from the cured surface 50 while being adhered or adsorbed to the curing member 40, the lightly adherent surface 12 or the adsorbed surface 14 is removed. It is easily peeled off because of its presence. Then
The release paper 20 is again returned to its original state by covering the weak adhesive surface 12 or the suction surface 14, and in this state, the curing members 40 are stacked and stored and transported for reuse. When stored and transported in this manner, the weakly adhesive surface 12 or the suction surface 1
4 is prevented, the adhesion of dust and the like are prevented, and the curing members 40 are overlapped with each other via the release paper 20 in a non-adhesive state.
0 may be peeled and developed in the same manner as described above, and handling becomes easy.

[0017]

As described above, according to the present invention, the release papers on the front and back sides of the double-sided adhesive sheet can be extremely easily and quickly peeled off, which can contribute to improvement of workability.

The curing member can be easily removed from the cured surface by simply peeling off the weakly adhered surface or the adsorbed surface from the cured surface. The same curing member can be repeatedly removed by peeling off the release paper on the front and back surfaces each time it is used. Since the waste paper can be reused, the work efficiency and the economic efficiency are excellent, and the amount of release paper as waste can be reduced.

[Brief description of the drawings]

FIG. 1 is a plan view of an example of a double-sided adhesive sheet for a curing material according to the present invention.

FIG. 2 is an enlarged cross-sectional view of a part omitted along the line 2-2 in FIG. 1;

FIG. 3 is a plan view in a state where a release paper in FIG. 1 is developed.

FIG. 4 is an enlarged cross-sectional view of a partly omitted view along a line 4-4 in FIG. 3;

FIG. 5 is an enlarged cross-sectional view of a partially omitted main part showing another example of the present invention.

FIG. 6 is an enlarged cross-sectional view showing a use state, partially omitted.

FIG. 7 is an enlarged partial cross-sectional view showing a state in which curing members are stacked.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 Sheet main body 11 Weak adhesive surface 12 Strong adhesive surface 14 Adsorbing surface 20 Wide release paper 21 Adhesive edge 22 Knob 40 Curing member 50 Cured surface

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E04G 21/24 C09J 7/02

Claims (1)

(57) [Claims] 1. A curing member such as a veneer plate having one surface.
The main body of the sheet is a strong adhesive surface 11 that is adhered to the surface, and the other surface is a weak adhesive surface 12 having an adhesive force that can be peeled off without leaving a paste on the cured surface 50 or an adsorption surface 14 that can be adsorbed and removed. 10, one edge 21 of the sheet main body 10 is polymerized and adhered to the entire edge of the strong adhesive surface 12;
A wide release paper 20 whose other edge extends slightly outward from the sheet main body 10 so as to cover the weakly adhesive surface 12 or the suction surface 14 and serves as a knob 22; And a release paper 30 adhered by overlapping a non-adhesive edge 31 as a knob portion on one adhered edge 21 of the wide release paper 20 on the remaining strong adhesive surface 12. The release paper 30 has a knob 31 which is a non-adhesive edge.
The strong adhesive surface 11 which has been peeled off and exposed through the adhesive is adhered to the curing member 40 and the wide release paper 20
However, the weak adhesive surface 12 or the adsorbing surface 14 which is peeled off and exposed through the knob 22 extending slightly outward from the sheet main body 10 adheres or adheres to the cured surface 50 such as a wall surface to be cured. After use, the adhesive sheet 12 or the suction surface 14 is again adhered to the curing member 40 by the wide release paper 20 while being adhered to the curing member 40.
Is covered to prevent the adhesion surface or the adsorption surface from being deteriorated and to obtain a dustproof effect.
In the case of handling such as transportation, the curing member 4 stacked
A double-sided adhesive sheet for a curing material, characterized in that 0 is not adhered to the weak adhesive surface 12 or the adsorption surface 14 by a wide release paper 20.