JPS6021299A - Laminating form and manufacture thereof - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] TECHNICAL FIELD The present invention relates to bonded forms, particularly to improvements in their adhesion.

For a bonded form in which paper of a certain size is removably pasted on a mount that forms the main body of the form, the adhesion conditions for r31 are as follows: (△) In normal adhesive f8, the paper is attached to the mount It must be firmly attached and not fall off.

(B) When the paper is peeled off from the mount, there should be no fuzz or damage on the back side of the paper, and no glue residue should remain.

It is.

The conventional method for satisfying these contradictory conditions is to glue the paper onto a backing board using adhesives with various adhesive strengths, and then perform a peel test to find the optimal one. I try to set suitable bonding conditions.

However, the above methods tend to satisfy only one of the conditions; for example, if the intention is to satisfy the conditions at the time of peeling off, the paper tends to fall off easily; If this happens, the back side of the paper will be easily damaged, and furthermore, even if a glue that satisfies both conditions appears, the standard is that it may not be possible to obtain the desired result depending on the application conditions, adhesion conditions, etc. .

Particularly when attempting to releasably laminate OCR paper onto a mount, it is important to satisfy the condition (B) above at the time of peeling.

In other words, when re-peeling OCR paper is transferred to an optical reader, if the condition of the back side has changed, the paper will float or cast a shadow in the changed area, reducing reading accuracy. Furthermore, there are inherent problems such as paper feeding not being carried out smoothly if glue remains on the back side.

To this end, the present inventors used a re-peelable adhesive with weak adhesive properties, and took advantage of the difference in paper quality between the OCR paper and the high-quality paper constituting the mount to form a glue layer on the mount side during re-peeling. We tried various bonding conditions that would leave a layer of glue on the high-quality paper, but we found that there was no difference in the quality of the paper to the extent that the adhesive layer remained on the high-quality paper side.Therefore, we currently use forms with OCR paper pasted onto such backing paper. has not been put into practical use and 7C0 The present inventors have conducted various studies on adhesives that satisfy the above contradictory conditions (1). It has been found that by laminating through layers, no residue of adhesive agent 1 remains on the paper adhered to the weakly adhesive layer side during re-peeling.

The present invention was made based on this knowledge, and the combination of the adhesives described above allows for reliable adhesion to the backing paper during adhesion, and also allows for fuzzing, scratches, or residual adhesive on the paper when peeled off. This provides a pasted form that does not leave any residue.

Hereinafter, one embodiment of the present invention will be described in detail using the drawings.

Figure 1 shows a pasted form to which this invention is applied.
The mount 1 is a continuous sheet of paper having a plurality of feed holes 2, 2, .

On this mount 1, OCR sheets 4.4 and 4.
. . . is releasably glued to its negative side (appearing at the upper edge in the figure).

Note that the paper constituting the mount 1 is high-quality paper, and is OCR paper.
The paper 4 is made of high-quality paper similar to this,
It is formed slightly thicker.

FIGS. 2 and 3 show the structure of the bonded portion.

On the adhesive surface of the mount 1 to the OCR paper 4, an undercoat glue layer 5 is applied in a band shape along its edge, and an O is applied to the corner opposite to the - side.
An undercoat glue layer 6 for fixing the edges of the CR paper 4 is applied in spots.

Further, peeling paste layers 7, 7, etc. are spot-coated on the paste layer 5 at appropriate intervals, and also on the paste layer 6, similar to the paste layer 7. A glue layer 8 made of a material is spot-coated in an area smaller than the glue layer 6.

Each of the adhesive layers 5° to 8 is adhered to each other on their contact surfaces, and the adhesive strength between each of the adhesive yPI layers 5 to 8 and the mount 1 and OCR paper 4 is determined according to the adhesive strength. This securely fixes the OCR paper 4 on the mount 1.

The undercoat glue layer 5.6 is an adhesive with relatively high adhesive strength, for example, a pressure-bonding type natural rubber with high film strength that does not cause layer destruction inside the glue layer]
-Mulsion type glue is used.

This type of glue is also advantageous in that it does not exhibit direct adhesion between OCR sheets due to rewetting after drying.

Also, the glue layer 7.8 dotted on the OCR paper 4 side is a weakly adhesive emulsion glue for re-peeling.

Although there are various combinations of the two, one with the optimum conditions can be easily selected through experiments or the like from combinations of adhesives with different adhesive strengths.

In addition, the undercoat glue layers 5 and 6 can be coated by the method of manufacturing NIP sticker paper, and the glue layers 7 and 8 for re-peeling can also be applied and laminated with OCR paper. Although it can be carried out using existing equipment, the coating method will be explained below with reference to FIG.

FIG. 4 shows an apparatus for explaining the method of the invention, in which a mount 1 wound up on a roll stocker 10 is sent through its feed hole 2 to a processing position via a sprocket 11.11. At the processing position, there is an applicator roller 14 that contacts the surface of the mount 1 via the first glue tank 12 and the intermediate roller 12a. Electron beam dryer W115. A spot application roller 17 that contacts the surface of the mount 1 via the second glue tank 16 and the intermediate roller 16. Paper stocker 18. A pressure roller 19, a perforation roller 20, and a stock stocker 21 are arranged in sequence, and each device operates at a timing JI51 coincident with the paper feeding operation of the mount 1. In the first glue tank 12, a glue constituting the above-mentioned undercoat glue 115.6 is stored, and in the second glue tank 16, a peeling glue layer 7.8 is stored. The constituent glue is stored.

Then, the glue in the first glue tank 12 is transferred onto the mount 1 at a predetermined pitch and in a pattern according to the pattern by the coating row 514, and is transferred to the drying device W115 and dried. Next, the glue is transferred in spots from the second glue tank 16 via the spot application roller 17 onto the glue layer 5.6 of the mount 1 that has exited the dryer N15. Next, the OCR paper 4 is supplied onto the mount 1 from the paper stocker 18, and the OCR paper 4 is fixed onto the mount 1 by pressure @n-519 via the peeling paste M7, 8.

Furthermore, folding perforations 3 are formed at predetermined intervals by a perforation roller 20 on the mount 1, and the mount is stored in the one-item stocker 21 in a zigzag-folded state.

When the OCR paper 4 is not peeled off from the mount 1 on the pasted form constructed as described above, the paper edge of the paper 4 is held and the peeling operation is performed, but during this gap, it is necessary to remove the OCR paper 4 again. The mr of the glue layer 7.8 and the undercoat glue M5, 6
Since o+ is a bond between adhesives, it remains bonded with relatively strong adhesive force, and the adhesive layer 7.8 for re-peeling and the OCR paper 4 can be reliably peeled off. Fuzzing or scratches on the adhesive surface or glue Wj7.8 is OCR
To obtain a good peeling effect without transferring to the paper 4 side.

Therefore, even if the OCR paper 4 that has been torn off in this manner is directly applied to an optical reading device, it can be read satisfactorily without paper feeding problems, reading errors, etc.

In the above embodiment, a glue layer with strong adhesive strength for undercoat is formed in a band shape, and a glue layer for fixing OCR paper is spot-coated. It is possible to apply a layer dust-like layer over a wider area than the glue layer for re-peeling.
It was applied to a bonded form with paper that was removably glued, but
For example, even if a normal copy of a form is peeled off, the form may be damaged, so even if such a structure is applied to a general form, the same effect as described above will prevent damage to the form.

As explained in detail in the embodiments above, in this invention, the adhesive layer is pasted onto the mount that constitutes the form body through two layers of hard glue having different adhesive strengths. ,
In this adhesive state, the weakly adhesive glue and the paper remain reliably bonded, and when this is peeled off, the paper does not become flaky or fluffy, and the glue will not stick to the surface. Therefore, as shown in the examples, when this is applied to OCR paper, there will be no reading errors, paper feeding failures, etc., and good reading of 11 degrees can be achieved, so this type of OCR paper is put into practical use in pasted forms. In addition to being able to do this, it is also possible to peel off other sheets of this type at 1i111. II! It eliminates stickiness and fluff, making it extremely convenient for practical use.

4. Brief explanation of the drawings Fig. 1 is a partially sectional plan view showing the case where the present invention is applied to an OCR@ slip for pasting, Fig. 2 is a sectional view taken along the line 1 of Fig. 1, and Fig. 3 The figure is a sectional view taken along the line ■--■ in FIG. 1, and FIG. 4 is a schematic explanatory diagram of an apparatus showing an embodiment of the method of the present invention.

1・・・・・・・・・Mount 4・・・・・・・・・C) CR paper 5.6... Adhesive layer for undercoat 6.7... Adhesive layer for re-peeling ! patent applicant Kobayashi Recording Paper Manufacturing Co., Ltd.

Claims (3)

[Claims] (1) In a form in which at least one side of paper is removably adhered to a mount that constitutes the form main body, a glue with relatively high adhesive strength is placed on the mount at the position where the paper is attached, and the paper is A pasted form characterized in that a paste having a lower adhesive strength than the above-mentioned paste is arranged on the side, and the paper is adhered to the mount through these 8 glues R and H. (2) The pasted form according to claim 1, wherein the glue applied to the paper side is applied spot-wise to the paper. (3) Apply glue to the paper pasting position on the mount, and
This is dried, and then a glue having a lower adhesive strength than the glue is applied onto the glue layer, and paper is adhered onto the glue layer. Production method.