JPH079665Y2 - Concealment label sheet material - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention aims to conceal important information, such as a postcard, from being unreadable by a person other than the parties concerned.
The present invention relates to a peelable concealable label sheet material that is used by being attached to the surface of a postcard or the like.

(Problems to be solved by the conventional technology and device) Conventionally, in order to notify customers by mail of important information, for example, a deposit balance at a post office or a bank, a sealed letter is used because of its confidentiality. Was common.

However, recently, a postcard, which is cheaper than a postcard, is used, and an opaque concealment sheet material is releasably attached to the surface of the postcard so that the information written on the surface of the postcard can be read by a person other than the party concerned. There is something that makes it unreadable.

As shown in FIG. 5, the structure of the conventional concealing sheet material 1'includes a base paper 2 ', an adhesive layer 3', an aluminum foil 4 ', a transparent resin layer 6'made of polyethylene, and an adhesive. 7 ', and release paper 8'are laminated in order, and when forming the above-mentioned transparent resin layer 6', they are extruded at a temperature slightly lower than the melting temperature and temporarily attached to the aluminum foil 4 ', and the base paper 2', The concealed portion A'composed of the adhesive layer 3'and the aluminum foil 4'is configured to be integrally peelable from the transparent resin layer 6 ', and the transparent resin layer 6'remains on the adherend after peeling. There is a structure that makes it impossible to read the information via the tape and once re-attach it, it is impossible to re-attach it.
-15035).

However, the base paper 2 ', the adhesive layer 3', the perforations 9'to the aluminum foil 4 ', etc. are usually punched out depending on the application or in order to facilitate peeling after sticking. In this case, in the conventional concealing sheet material, since the base paper 2'and the adhesive layer 3'are flexible and the aluminum foil 4'has a certain hardness, it is difficult to punch, or even if punched, the Since the transparent resin layer 6'made of polyethylene under the foil 4'is flexible, it reaches the lower release paper 8 ', which makes it unusable as a product (see FIG. 6).

When such a concealing sheet material is continuously attached to a postcard or the like, a so-called high-speed labeler is used. As a method thereof, as shown in FIG.
The concealing sheet material 1'wound on the 10 'is continuously fed along a substantially triangular sticking guide piece 11' of a high-speed labeler, and when passing through the guide piece 11 ', the concealing sheet material 1' The release paper 8'is peeled from the lower surface of 1 ', and the release paper 8'is separately wound by a take-up roll 12' through the lower side of the guide piece, and at the same time, an adherend such as a postcard supplied separately. 1
The sheet material body 1 ″ with the release paper 8 ′ peeled off is attached to the surface of 3 ′, and the gap between the pressure rolls 15 ′ and 15 ′ is attached to the adherend 1
It is configured to pass 3'to complete the pasted state.

However, in the case of the conventional concealing sheet material, the base paper 2 ′, the adhesive layer 3 ′, the aluminum foil 4 ′, the transparent resin layer 6 ′ made of polyethylene, and the adhesive 7 ′ are attached to the sheet material body 1 ″ (top Although they are used as paper), they are not rigid, so when they are used for the high-speed labeler as described above, when the release paper 8'is peeled (even if the peeling force of the release paper is weakened). The adhesive guide piece 11 'may be bent toward the take-up roll 12' (indicated by numeral 14 ') and may be taken up together with the release paper 8', which hinders the function of the high-speed labeler and has a purpose. It was not preferable because continuous operation could not be performed.

In view of such a situation, the invention of the present application is easy in punching work such as perforations, and does not lead to punching to release paper, and further, does not bend even during continuous sticking work with a high-speed labeler, An object of the present invention is to provide a concealing label sheet material that can be smoothly attached.

(Means for Solving the Problem) The concealing label sheet material of the present invention has been devised in view of the above-mentioned problems and objects, and can be used even when affixing an object to be adhered with a high-speed labeler. , The upper surface of the transparent resin film, which is rigid enough to prevent the sheet material body from bending, was mixed with a metal powder in a resin that was flexible enough to be easily punched during perforations such as perforations. The concealing layer is formed in a temporarily attached state, the base paper is attached to the upper surface of the transparent resin film via the adhesive layer, and the release paper is detachably attached to the lower surface of the transparent resin film via the transparent adhesive. It is characterized by having done.

The concealing label sheet material of the present invention is characterized in that the transparent resin film is a biaxially oriented polypropylene (OPP) or polyester (PET) film.

Further, the concealing label sheet material of the present invention is characterized in that the concealing layer is a urethane resin mixed with aluminum powder.

(Example) Below, the label sheet material for concealment of this invention is demonstrated in detail based on an accompanying drawing.

FIG. 1 is a partially enlarged cross-sectional view of the concealing label sheet material of the present invention, in which 1 indicates the concealing label sheet material of the present invention as a whole.

This concealment label sheet material 1 basically has a concealment layer 4 on the upper surface of a transparent resin film 6 having appropriate rigidity in which a resin having appropriate flexibility is mixed with metal powder. The base paper 2 made of high-quality paper or coated paper is attached to the upper surface of the transparent resin film 6 via the adhesive layer 3, and the transparent adhesive 7 is applied to the lower surface of the transparent resin film 6.
The release paper 8 is releasably attached via the.

Here, the above-mentioned transparent resin film 6 having an appropriate rigidity means that the above-mentioned transparent resin film 6 can be adhered to by the above-mentioned high-speed labeler.
Any sheet can be used as long as the sheet material has rigidity that does not bend, and specifically, biaxially oriented polypropylene (OPP) and polyester (PET) films can be used.

Further, the hiding layer 4 in which the metal powder is mixed with the resin having the appropriate flexibility described above may be one that can be easily punched during punching work such as perforations, and specifically, for example, It is possible to use a mixture of urethane resin with aluminum powder such as "Resamine" manufactured by Dainippon Seika Kogyo Co., Ltd.

Then, as a method for forming the above-mentioned temporary adhesion state, aluminum powder is mixed in advance with an organic solvent such as toluene and urethane resin is dissolved, and the transparent resin film 6 is appropriately coated. Alternatively, it is temporarily attached by extrusion lamination. Here, the mixing ratio of the urethane resin and the aluminum powder is appropriately selected depending on the intended hiding degree, but from the viewpoint of temporary adhesion, about 1: 1 to 3: 1 is preferable. That is, if the aluminum powder is less than this range, the hiding property cannot be expected, and if too much,
This is because the temporary adhesion property is not good, and further, aluminum powder is leached out, which is not preferable.

The types of the adhesive layer 3 and the pressure-sensitive adhesive 7 are not particularly limited as long as they have good adhesiveness to the resin film 6 and the hiding layer 4, respectively.

(Operation / Effect) Concealment label sheet material 1 of the present application configured as described above
According to the application or in order to facilitate the peeling after sticking, as shown in FIG. 2, the base paper 2, the adhesive layer 3, and the perforations 9 reaching the concealing layer 4 are punched out. However, even in this case, the base paper 2, the adhesive layer 3, the hiding layer 4
Is flexible, and the transparent resin layer 6 present therebelow has a certain degree of rigidity (hardness), so that it is easy to punch, and even if punched, even the release paper 8 present below the transparent resin layer 6 There is no danger of reaching.

Further, as shown in FIG. 3, the concealing label sheet material 1 of the present application is preliminarily wound around the supply roll 10 even when a high-speed labeler is used when continuously sticking to a postcard or the like. The concealment sheet material 1 is continuously supplied along a substantially triangular sticking guide piece 11 of a high-speed labeler, and when passing through the guide piece 11, the release paper 8 is peeled off from the lower surface of the concealment sheet material 1. A sheet material in which the release paper 8 is separately wound on the take-up roll 12 through the lower side of the guide piece, and at the same time, the release paper 8 is peeled off on the surface of the adherend 13 such as a postcard supplied separately. The main body 1a can be adhered and the adherend 13 can be passed through the gap between the pressing rolls 15 and 15 to easily complete the adhered state.

That is, since the resin film 6 forming a part of the sheet material main body 1a has rigidity, when used for a high-speed labeler as in the case of the conventional concealing sheet material, the sticking guide piece is used.
At 11 there is no bending on the take-up roll 12 side, and smooth sticking work can be performed without bending even during continuous sticking work with a high-speed labeler.

Furthermore, since the perforations and the like are good as described above, as shown in FIG. 4, the sheet material body 1a is attached to the surface of the adherend 13 such as a postcard as described above. After that, when reading the described information, the concealing portion A composed of the base paper 2, the adhesive layer 3, and the concealing layer 4 can be easily and integrally peeled from the transparent resin layer 6. Of course, like the conventional concealing sheet material, it is impossible to read information through the transparent resin layer 6 remaining on the adherend after peeling, and once peeled, it is not possible to attach again.

Furthermore, in the case of the present application, since the transparent resin layer 6 remaining on the adherend after peeling has a certain degree of rigidity, the written information does not become unreadable due to abrasion damage as in the conventional case.

As described above, the concealment label sheet material of the present invention is an extremely excellent idea that exhibits a number of remarkable effects as compared with the conventional concealment sheet material.

[Brief description of drawings]

FIG. 1 is a partially enlarged sectional view of a concealing label sheet material of the present invention, and FIG. 2 is a partially enlarged sectional view showing a state in which punching holes are formed in the concealing label sheet material.
FIG. 4 is a schematic view illustrating a state in which the concealment label sheet material of the present invention is continuously adhered to an adherend such as a postcard by a high-speed labeler, and FIG. 4 is a schematic diagram illustrating the concealment label sheet material of the present invention such as a postcard. FIG. 5 is a partially enlarged cross-sectional view showing a state of being peeled off after being adhered to the adherend of FIG. 5, FIG. 5 is a partially enlarged cross-sectional view of a conventional concealing sheet material, and FIG. FIG. 7 is a partially enlarged sectional view showing a state in which punching is formed, and FIG. 7 is a schematic view illustrating a state in which a conventional concealing sheet material is continuously attached to an adherend such as a postcard by a high-speed labeler. 1 …… Concealment label sheet material, 2 …… Base paper, 3 ……
Adhesive layer, 4 ... Hiding layer, 6 ... Resin film, 7 ...
Adhesive, 8 ... Release paper, 9 ... Perforation, 10 ... Supply roll, 11 ... Sticking guide piece, 12 ... Take-up roll, 13
…… Attached body, 1a …… Sheet material body, A …… Concealed part.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-62-227182 (JP, A) Actually open 1-165283 (JP, U) Actually open 62-9571 (JP, U) Actually open 63- 11863 (JP, U) Actually open 63-51772 (JP, U) Actually public 61-2075 (JP, Y2) Actually public 57-60036 (JP, Y2)

Claims (3)

[Scope of utility model registration request] 1. A punching operation, such as a perforation, is formed on the upper surface of a transparent resin film having rigidity such that the sheet material body is not bent even when the work is attached to an adherend with a high-speed labeler. When forming a concealing layer in which metal powder is mixed with a resin that is flexible enough to allow easy punching in a temporarily attached state, and a base paper is attached to the upper surface thereof via an adhesive layer, the transparent A label sheet material for concealment, which comprises a release paper releasably attached to the lower surface of a transparent resin film via a transparent adhesive. 2. The concealment label sheet material according to claim 1, wherein the transparent resin film is a biaxially oriented polypropylene (OPP) or polyester (PET) film. 3. The hiding layer is a urethane resin mixed with aluminum powder.
Or the label sheet material for concealment according to any one of 2).