JP3578222B2 - Printing method of pressure-sensitive adhesive sheet - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to a method for printing a pressure-sensitive adhesive sheet capable of concealing print information by being adhered removably.
[0002]
[Prior art]
. FIG. 4 is a diagram showing a conventional example of a pressure-sensitive adhesive sheet.
In the conventional pressure-sensitive adhesive sheet 50, a removable adhesive layer 52 based on NR, modified NR, SBR, or the like is formed on one side of a substrate 51. Silica, clay, and the like were added to the pressure-sensitive adhesive layer 52 in order to prevent blocking, improve slippage, and improve the suitability of writing and stamping.
[0003]
The pressure-sensitive adhesive sheet 50 is formed by printing information on a surface of the base material 51 on which the adhesive layer 52 is formed by using a non-impact printer (NIP) such as a laser printer, and then, from the center perforation. By folding and pressurizing, it is tightly and removably adhered and sealed.
If this pressure-sensitive adhesive sheet 50 is used for a confidential postcard or the like, there is an advantage that it can be mailed at a postcard fee while maintaining the concealment of information. The printed information can be read by peeling off the adhesive surface of the pressure-sensitive adhesive layer 52.
[0004]
[Problems to be solved by the invention]
With the spread of the pressure-sensitive adhesive sheet 50, there has been a demand for printing by an impact-type printer such as a wire dot printer which has been widely used in place of NIP.
However, the ink ribbon used in the wire dot printer is processed so as not to dry during leaving, and since the dye is a main component, the print information 61 faces when peeled off again after sealing. There is a problem that the image is transferred to the surface and the stain 62 is generated.
Further, when the pressure-sensitive adhesive sheet 50 is used as a confidential postcard or the like, the copy to be issued is only a list created by a computer, and a copy of an actually issued one cannot be left.
[0005]
An object of the present invention is to solve the above-mentioned problems, and to provide a method for printing a pressure-sensitive adhesive sheet that does not cause stains due to transfer even when using an impact printer, and that can make a copy by copying. To provide.
[0006]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the invention according to claim 1 includes a substrate, an adhesive layer formed on a surface to be brought into close contact with the substrate, and a color forming agent formed in a printing area on the adhesive layer. react to color and consists of a developer layer, by applying pressure to return folded, a pressure-sensitive adhesive sheet of the printing method of printing a pressure sensitive adhesive sheet for adhesion re detachably, said color developing Transfer sheet on which a color former layer reacting with the developer layer is formed, and a developer layer reacting with the color former layer of the transfer sheet is formed on one surface, and reacts with the developer layer of the pressure-sensitive adhesive sheet. And a copy sheet having a color forming agent layer formed on the other surface, and the adhesive layer contains a component that reacts with the color forming agent of the copy sheet to form a color in a portion other than the printing intended area. And transfer the transfer sheet as an ink ribbon for an impact printer. The copy sheet is placed on the copy sheet, the copy sheet is placed on the pressure-sensitive adhesive sheet, and the color former layer of the transfer sheet is pressed against the developer layer of the copy sheet by the printer head of the impact printer. While applying a color, the color-forming agent layer of the copy sheet is pressed against the color-developing agent layer of the pressure-sensitive adhesive sheet to form a color, and printing is performed in the planned printing area.
This is a method for printing a pressure-sensitive adhesive sheet.
[0007]
The invention according to claim 2 , wherein the base material, the pressure-sensitive adhesive layer formed on the surface of the base material that is to be in close contact with the base material, and a developed color that is formed in a printing expected area on the pressure-sensitive adhesive layer and reacts with the color-forming agent to form a color. consists of a material layer, by applying pressure to return folded, a pressure-sensitive adhesive sheet of the printing method of printing a pressure sensitive adhesive sheet for adhesion repeelably to an ink ribbon, sensible of the pressure sensitive adhesive sheet Using a copy sheet in which a colorant layer reacting with a colorant layer is formed on the other surface, and the pressure-sensitive adhesive layer reacts with the colorant of the copy sheet to form a color in a portion other than the planned printing area. And the ink ribbon is placed on the copy sheet, and the copy sheet is placed on the pressure-sensitive adhesive sheet. Printing schedule While printing in the region, the copied color former layer of the sheet and developed against the developer layer of the pressure sensitive adhesive sheet, to be printed on the printing region where printing of pressure-sensitive adhesive sheet, wherein Is the way.
[0008]
[Action]
In the first solution of the method for using the pressure-sensitive adhesive sheet of the present invention, the transfer sheet 20 and the copy sheet 30 are placed on the pressure-sensitive adhesive sheet 10 so as to overlap with each other, and the color forming layers 22 and 32 are changed to the color developing layer 33. , 13 are pressed against each other to form a color, and printing is performed in the print-scheduled area of the copy sheet 30 and the pressure-sensitive adhesive sheet 10, so that dirt due to transfer during sealing can be eliminated and the copy sheet 30 can be kept as a copy.
[0009]
In the second solution, the ink ribbon 40 prints on the print-scheduled area of the copy sheet 20 ′ and pushes the color-forming agent layer 22 of the copy sheet 20 ′ against the developer layer 13 of the pressure-sensitive adhesive sheet 10. Since the color is applied and printed in the print-scheduled area of the pressure-sensitive adhesive sheet 10, dirt due to transfer during sealing can be eliminated, and the copy sheet 20 'can be left as a copy.
[0010]
【Example】
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a schematic diagram illustrating a first embodiment of a method for using a pressure-sensitive adhesive sheet according to the present invention.
In the pressure-sensitive adhesive sheet 10 of this embodiment, a releasable pressure-sensitive adhesive layer 12 based on NR or modified NR or SBR is formed on a substrate 11, and printing of the pressure-sensitive adhesive layer 12 is planned. In the region, a color developer layer 13 coated with a color developer that reacts with the color developer to form a color is formed. As the color developer, a dye such as leuco or fluoran is used, and as the color developer, a solid acid such as activated clay is used.
[0011]
The pressure-sensitive adhesive layer 12 contains an alkaline substance such as calcium carbonate instead of a conventional acidic substance such as silica or clay. The reason for this is to prevent the coloring agent from being transferred in the presence of an acidic substance such as silica or clay and causing stain when the coloring agent is transferred to the non-printing scheduled area.
[0012]
Further, in the color developer layer 13, an area to be colored (scheduled area) is almost equal to an area to be concealed. Therefore, by applying an ink to which an acidic substance such as activated clay is applied only to the area to be printed. A low-cost pressure-sensitive adhesive sheet having excellent adhesive strength can be produced.
In addition, by applying a pressure-sensitive adhesive to which an acidic substance such as silica or clay is added to only the print-scheduled area, forming the color developer layer 13 is preferable because a decrease in the pressure-sensitive adhesive force can be completely prevented. In particular, it is more preferable when the printing area is wide.
In addition, since the conventional pressure-sensitive adhesive to which an acidic substance such as silica or clay is added has both the function of the pressure-sensitive adhesive layer and the function of the color developer layer, it is conceivable that the pressure-sensitive adhesive is composed of only this pressure-sensitive adhesive. However, as described above, even when the color former is transferred to the non-printing scheduled area, the color is always formed and stains occur because the acidic substance is present.
Therefore, it is conceivable to apply ink or the like so that the transfer is not conspicuous in the non-printing scheduled area.However, since it is necessary to apply the ink widely to the non-printing scheduled area, not only does the cost increase, Adhesive strength is reduced and its control becomes extremely difficult.
[0013]
Next, a method of using the pressure-sensitive adhesive sheet 10 will be described.
In this embodiment, printing is performed by a printer head PH of a wire dot printer using a transfer sheet 20 in which a base material 21 and a coloring agent layer 22 encapsulated in microcapsules are applied as an ink ribbon of the printer.
That is, since the microcapsules of the color former layer 22 of the ink ribbon 20 are destroyed by the printer head PH, the color developer layer 12 of the pressure-sensitive adhesive sheet 10 reacts with the color former and develops a color, thereby displaying information.
[0014]
After printing, the pressure-sensitive adhesive layers 12 are folded back from the perforation and pressed to seal the pressure-sensitive adhesive layers 12 in close contact with each other. At this time, even if the color former on the color developer layer 13 is transferred to the opposite surface side, since the pressure-sensitive adhesive layer 12 does not contain an acidic substance that reacts with the color former, the color is not formed. No contamination.
[0015]
FIG. 2 is a schematic diagram illustrating a second embodiment of the method for using the pressure-sensitive adhesive sheet according to the present invention. In each of the embodiments described below, the portions that perform the same functions as those in the first embodiment are denoted by the same reference numerals, and redundant description will be omitted.
In the second embodiment, a copy sheet 30 is inserted between the pressure-sensitive adhesive sheet 10 and the transfer sheet 20. The relationship between the three corresponds to the relationship between so-called carbonless paper upper paper (transfer sheet 20), middle paper (copy sheet 30), and lower paper (pressure-sensitive adhesive sheet 10).
The copy sheet 30 has a color former layer 32 formed on the lower surface and a developer layer 33 formed on the upper surface. As the color former layer 32 and the color developer layer 33, the same layers as the above-described color former layer 22 and color developer layer 13 can be used.
In the second embodiment, similarly to the first embodiment, there is an advantage that the printed information does not stain the opposing surface after the sealing, and the copy sheet 30 allows the copy to be reliably and inexpensively made.
[0016]
FIG. 3 is a schematic diagram illustrating a third embodiment of the method for using the pressure-sensitive adhesive sheet according to the present invention.
In the third embodiment, a copy sheet 20 ′ having the same layer structure as the transfer sheet 20 of the first embodiment is stacked on the pressure-sensitive adhesive sheet 10 as copy paper, and the printer head PH normally uses the copy sheet 20 ′. Is printed via the ink ribbon 40 of FIG.
In this case, the copy sheet 20 'is printed with normal ink, and the pressure-sensitive adhesive sheet 10 performs the same color development as in the first embodiment, so that it can be operated using the current printer as it is. There are advantages.
[0017]
【The invention's effect】
As described in detail above, according to the present invention, even when printing is performed using an impact printer, a copy copy can be left without causing stains due to transfer during sealing. The issuing system can be introduced at low cost and can be operated reliably.
[Brief description of the drawings]
FIG. 1 is a schematic diagram illustrating a first embodiment of a method for using a pressure-sensitive adhesive sheet according to the present invention.
FIG. 2 is a schematic diagram illustrating a second embodiment of the method for using the pressure-sensitive adhesive sheet according to the present invention.
FIG. 3 is a schematic diagram illustrating a third embodiment of the method for using the pressure-sensitive adhesive sheet according to the present invention.
FIG. 4 is a view showing a conventional example of a pressure-sensitive adhesive sheet.
[Explanation of symbols]
REFERENCE SIGNS LIST 10 pressure-sensitive adhesive sheet 11 substrate 12 adhesive layer 13 developer layer 20 transfer sheet 20 ′ copy sheet 21 substrate 22 color former layer 30 copy sheet 31 substrate 32 color former layer 33 developer layer 40 ink ribbon PH Printer head

Claims (2)

A substrate,
An adhesive layer formed on the surface of the base material that is to be in close contact,
It is formed in the printing scheduled area on the pressure-sensitive adhesive layer, and comprises a color developing agent layer that reacts with the color forming agent to form a color,
By pressurizing returns fold, a pressure-sensitive adhesive sheet of the printing method of printing a pressure sensitive adhesive sheet for adhesion re releasably,
A transfer sheet formed with a color former layer that reacts with the developer layer,
A color developing agent layer that reacts with the color developing agent layer of the transfer sheet is formed on one surface; and a copy sheet that has a color developing agent layer that reacts with the color developing agent layer of the pressure-sensitive adhesive sheet formed on the other surface. Use
The pressure-sensitive adhesive layer, the portion other than the planned printing area, so as not to contain a component that reacts with the color forming agent of the copy sheet to form a color,
The transfer sheet is placed on the copy sheet as an ink ribbon of an impact printer, the copy sheet is placed on the pressure-sensitive adhesive sheet, and the color former layer of the transfer sheet is placed on the printer head of the impact printer. Pressing against the color developer layer of the copy sheet to form a color, and pressing the color former layer of the copy sheet against the color developer layer of the pressure-sensitive adhesive sheet to form a color, and printing in the print scheduled area,
A printing method for a pressure-sensitive adhesive sheet, comprising: A substrate,
An adhesive layer formed on the surface of the base material that is to be in close contact,
It is formed in the printing scheduled area on the pressure-sensitive adhesive layer, and comprises a color developing agent layer that reacts with the color forming agent to form a color,
By pressurizing returns fold, a pressure-sensitive adhesive sheet of the printing method of printing a pressure sensitive adhesive sheet for adhesion re releasably,
With an ink ribbon,
Using a copy sheet in which a color former layer reacting with the color developer layer of the pressure-sensitive adhesive sheet is formed on the other surface,
The pressure-sensitive adhesive layer, the portion other than the planned printing area, so as not to contain a component that reacts with the color forming agent of the copy sheet to form a color,
The ink ribbon is placed on the copy sheet, the copy sheet is placed on the pressure-sensitive adhesive sheet, and the printer head of an impact printer prints on the print area of the copy sheet by the ink ribbon with the ink ribbon. Pressing the color-developing agent layer of the copy sheet against the developer layer of the pressure-sensitive adhesive sheet to form a color, and printing in the print-scheduled area;
A printing method for a pressure-sensitive adhesive sheet, comprising:

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