JPH07299974A - Foldable adhesive sheet - Google Patents

Abstract

PURPOSE:To easily adjust the adhesive strength when printing is applied to a foldable adhesive sheet like a postcard sheet coated with a pressure sensitive adhesive releasable after adhesion. CONSTITUTION:A postcard sheet 1 is formed by connecting a postcard upper paper piece 4 and a postcard lower piece 8 along a folding perforation 2 and a printable pressure-sensitive adhesive releasable after adhesion is applied to the superposed surface. Pattern printing parts 12a, 12b, 14a, 14b and solid printing parts 15a, 15b, 15c subjected to screen printing on the basis of the character data of titles 11a, 11b and information data 13a, 13b and four color inks of cyan, magenta, yellow and black are provided on the pressure-sensitive adhesive layer so that the total area of the respective printing parts becomes 30-60% of the area of the adhesive coating area. By this constitution, the correspondence to the printing of various color patterns is obtained by screen printing of three or more colors and a part where a pressure-sensitive adhesive is exposed is ensured to ensure certain adhesive strength and easy releasability.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet for making a folding adhesive sheet for postcards, various cards, etc. by folding it in three folds, two folds, etc. The present invention relates to a foldable adhesive sheet which allows easy adjustment of peelable adhesive strength of overlapping surfaces.

[0002]

2. Description of the Related Art Conventionally, printing or printing is possible,
Also, it does not adhere normally, but it can be adhered when a certain pressure is applied, and after folding it is a pressure-sensitive adhesive that can be peeled off without damaging the printing or the printing. Various sheets are known.

[0003]

However, according to the conventional folding adhesive sheet, when the printing or printing is performed on the surface of the pressure-sensitive adhesive which can be peeled off, particularly when the pattern or the like is solidly printed, the printed portion is not printed. As a result, the pressure-sensitive adhesive is coated, so the adhesive force is reduced, and the adhesive surface is easily peeled off as compared with the case where no printing is performed. On the other hand, if the adhesive strength of the pressure-sensitive adhesive that can be peeled is increased to compensate for the decrease in adhesive strength due to printing or printing, peeling becomes difficult, especially peeling of non-printed parts becomes difficult, and in some cases peeling occurs. At times, the print or the printed part is damaged and becomes invisible. As described above, conventionally, there has been a problem that it is difficult to adjust the adhesive force when printing or printing on the pressure-sensitive adhesive application surface. An object of the present invention is to provide a folding adhesive sheet that solves this inconvenience.

[0004]

In order to achieve this object, the folding adhesive sheet of the present invention has a folding portion, and it is possible to print or print on the overlapping surface folded at this folding portion, Moreover, it does not adhere normally, but it becomes possible to adhere when a certain pressure is applied, and after adhesion, a pressure-sensitive adhesive that can be peeled off is applied, and on this pressure-sensitive adhesive, use three or more colors of appropriate ink The printing and the printing portion including the screen printing described above are provided so as to cover 30 to 60% of the adhesive application portion. Then, it is preferable to provide a printed portion at the peeling start end portion on the overlapping surface side.

[0005]

[Function] On the releasable pressure-sensitive adhesive applied to the superposed surfaces to be adhered, the printing and the printing portion including the screen printing using the appropriate three or more colors of ink are 30 to 60% of the adhesive-applied portion. Since it is provided so as to extend to the overlapping surface, the adhesive surface will not be accidentally peeled during handling after adhesion of the superposed surfaces, and the peeling can be performed easily and surely at the time of peeling It does not spoil the printing. Further, when the printed portion is provided at the peeling start end portion on the overlapping surface side, the adhesive force at the peeling start end portion is weakened, so that the peeling start operation becomes easier.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention applied to a folding adhesive sheet for making a postcard for direct mail will be described in detail with reference to the accompanying drawings.
Here, FIGS. 1 to 6 show an embodiment in which the sheet is folded in two, FIG. 1 is a schematic plan view of the front side of the folding adhesive sheet, and FIG. 2 is an end view taken along the line AA of FIG. ,
3 is a schematic plan view of the back side of the folding adhesive sheet, FIG. 4 is a perspective view schematically showing the process of creating a postcard, and FIG.
Is a schematic plan view showing the front side of the created postcard, FIG. 6 is an end view taken along the line BB of FIG. 5, and FIGS. 7 to 9 show an example in which the sheet is folded in three. Is a schematic plan view of the front surface side of the folding adhesive sheet, and FIG. 8 is C of FIG.
-C line end view, FIG. 9 is a schematic end view of the created postcard.

First, a first embodiment of the present invention will be described with reference to FIGS. As shown in FIGS. 1 to 3, the postcard sheet 1 for creating a postcard is the postcard sheet 1
A postcard paper piece 4 having address entry fields 3a and 3b on the front side, on which the address information is entered at the time of postcard preparation, and a sender on the front side, with the perforation 2 for folding, which is a folding part for connecting in a connected state, as a boundary. Information 5a, 5b, information content explanation 6a,
6b and peeling edge instruction displays 7a and 7b are composed of postcard bottom paper pieces 8 printed in advance. The postcard bottom paper pieces 8 are set to have a width slightly smaller than that of the postcard top paper pieces 4. This postcard sheet 1 is one in which two postcards are created from one sheet, and is configured as a so-called two-wide type sheet. Then, on the front surface side of the postcard sheet 1, cutting instruction marks 9a and 9b indicating cutting positions for making two postcards are printed in advance.

As shown in FIG. 2 and FIG. 3, printing or printing is possible on the back side of the postcard sheet 1 which is a superposing surface, and it is not adhered normally and a constant pressure is applied. A pressure-sensitive adhesive 10 that can be bonded and can be peeled off after bonding is applied in advance. As the pressure-sensitive adhesive 10, for example, a non-peeling adhesive base which is pressure-sensitive and is difficult to be peeled off once it is adhered is mixed with a fine particulate filler having a non-affinity to the adhesive base. What is made is suitable, and what adhere | attaches with the pressure of 50 kg or more per cm < ² >, Preferably it is 80 kg or more. The adhesive base may be a conventional pressure-sensitive adhesive that has been conventionally used, but in particular, a natural rubber latex obtained by graft-copolymerizing styrene and methyl methacrylate onto natural rubber, It is suitable in terms of blocking resistance, heat resistance, wear resistance and the like.

On the other hand, the fine particulate filler has a small affinity with the adhesive base, for example, zinc oxide, titanium oxide, calcium carbonate, kaolin, activated clay, spherical alumina, wheat starch, silica, glass powder, Shirasu balloon or the like is used. These materials may be used alone or in combination of two or more, and in particular, a combination of silica and another suitable filler is suitable. Further, when two or more kinds having different particle diameters are combined, it is easy to form the adhesive application surface in a concavo-convex shape, so that the peeling performance is improved. The addition of silica has the advantage that the coating film of the adhesive can be strengthened, and the adhesiveness easily adheres to the surface due to its porosity, so that the adhesive force and peeling force can be easily adjusted. Further, even when printing is performed by a printer using silicone oil by a non-impact printer method, since the silica absorbs the silicone oil, the adhesive does not become stuck due to the silicone oil. The average particle size of the fine particulate filler is 10 m to 30 m, preferably 1 m to 20 m, and more preferably 2 m to 15 m.
Is preferred.

As the above-mentioned pressure-sensitive adhesive 10, for example, natural rubber latex obtained by graft-copolymerizing 2 parts by weight of styrene and 10 parts by weight of methyl methacrylate with respect to 100 parts by weight of natural rubber is used. It is preferable to use as a base, to which 5 parts by weight of a terpene resin-based tackifier and 20 parts by weight of silica gel having an average particle diameter of 5 μm are added, are added a fine particulate filler. The fine particulate filler should be added in an amount of 100 to 400 parts by weight, preferably 130 to 300 parts by weight, and most preferably 150 to 250 parts by weight, based on 100 parts by weight of the adhesive base. Is desirable.

As is apparent from FIGS. 2 and 3, titles 11a and 11b, which are character information, are printed on the postcard paper piece 4 on the pressure sensitive adhesive 10 application surface on the back side of the postcard sheet 1. In addition, pattern printing portions 12a and 12b by screen printing using four color inks of cyan, magenta, yellow, and black are provided.
The notice information 13a, 13b which is the character information is printed, and the pattern printing portion 14a displaying prizes of 1 to 4 etc. by screen printing using inks of four colors of cyan, magenta, yellow and black. 14b is provided.

Further, the postcard bottom paper piece 8 has band-shaped solid printing portions 15a, 15b, 15c printed at the central portion which is the boundary between the upper and lower ends and the two postcards, and the solid printing of the central portion is performed. The portion 15b includes solid printing portions 15a at the upper and lower ends,
It has twice the width of 15c. The solid printing section 15b
The upper and lower center positions of the postcards are cutting positions when creating postcards, and the solid printing portions 15b and 15c located at the lower ends of the postcards are weakening portions for facilitating the peeling operation. In order to maintain the reliable adhesive force of the pressure-sensitive adhesive 10, each printing portion 11a, 11 by screen printing and solid printing is used.
b, 12a, 12b, 13a, 13b, 14a, 14
The collective area of b, 15a, 15b, and 15c may be set to 30 to 60% of the area of the adhesive application portion, preferably 35 to 55%, and more preferably 40 to 50%.

Next, from the above-mentioned postcard sheet 1 to FIG.
A method of creating the postcard 18 shown in FIG. 6 will be described with reference to FIG. First, the address information 16a, 16b is printed in the address entry fields 3a, 3b by a printer (not shown) and stacked in the predetermined state shown in FIG. Next, the stacked postcard sheets 1 are pulled out through rollers or the like (not shown), and are transferred in a predetermined direction by a plurality of pairs of upper and lower transfer rollers (not shown). At this time, the folding perforations are located so as to extend in a direction perpendicular to the transport direction.

Then, by a folding device (not shown), the postcard sheets 1 are folded by the perforations 2 for folding the postcard sheets 1 in a connected state so that the back side of the pressure sensitive adhesive 10 is overlapped with the address information 16a. , 16b are exposed, while the printed portions 11a, 11b, 12a, 12b, 13 are printed.
a, 13b, 14a, 14b, 15a, 15b, 15c
Is invisible from the outside. Furthermore, slitter 2
0 indicates that the postcard sheet 1 has a cutting instruction mark 9
The sheet is cut at the central position corresponding to a and 9b, and the two-wide postcard sheet 1 is unitized into one sheet.

Subsequently, after the transfer direction is changed by 90 degrees, a predetermined pressure, which is the bonding condition of the pressure-sensitive adhesive 10, is applied by a pressure bonding device having two pairs of upper and lower pressure bonding rollers 21a and 21b to fold it. The postcard 18 in which the overlapped overlapping surfaces are releasably adhered, and the anti-binding edge of the postcard upper paper piece 4 slightly protrudes from the postcard lower paper piece 8 to form the finger hook portion 17 as shown in FIGS. 5 and 6. And Then, the created postcards 18 are sequentially stacked on a stacker device (not shown). As described above, if the transfer direction of the postcard sheet 1 is changed by 90 degrees in the pre-stage of the crimping device after the folding operation, the crimping devices 21a and 21b can be shortened in length, so that the crimping device can be downsized. There is an advantage.

The postcard 18 thus created can be posted in the same manner as a normal postcard. On the other hand, the addressee who has received the postcard picks up the finger-holding portion 17 according to the peeling edge instruction indications 7a and 7b, and postcard top paper piece 5 and postcard bottom paper piece 7
By applying a certain amount of force and peeling and to make the spread state,
Each printed portion 11a, 11b, 12a on the overlapping surface side,
12b, 13a, 13b, 14a, 14b, 15a, 1
5b and 15c can be visually recognized. At the time of peeling, the printed portions 11a, 11b, 12a, 12
b, 13a, 13b, 14a, 14b, 15a, 15
The b and 15c are not damaged, and the finger-holding portion 17 is provided, and the solid printing portions 15b and 15c are provided along the peeling edge, so that the peeling operation is performed easily and surely. Then, the overlapping surface of the postcard 18 is peeled off, and the information content is viewed on the spread surface, so that the recipient can be interested and the advertising effect as a direct mail can be further improved.

Next, a second embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 7 and FIG. 8, the postcard sheet 31 has an address entry field 32 on the front side of which address information is entered when a postcard is created, and a pressure-sensitive adhesive 33 on the back side.
The postcard paper piece 34 coated with the postcard paper piece 34 is connected to the postcard paper piece 34 of the same size as the postcard paper piece 34 through folding perforations 35, and pressure-sensitive adhesives 36 and 33 are applied to both front and back surfaces. The postcard paper piece 37 and the postcard paper piece 37, which is slightly wider than the postcard paper piece 37 and the postcard paper piece 34.
And a postcard paper piece 39 having a pressure-sensitive adhesive 36 applied to the surface thereof.

The surface side of the postcard paper piece 37 and the postcard bottom paper piece 39 to which the pressure-sensitive adhesive 36 is applied serves as the first superposing surface to be adhered, and the pressure sensitivity of the postcard paper piece 34 and the postcard paper sheet piece 37. The back surface side to which the adhesive 33 is applied serves as the second adhering overlapping surface. Then, these overlapping surfaces are folded and overlapped by the folding perforations 35 and 38. The pattern-printed portions 40a, 40 by screen printing using four color inks of cyan, magenta, yellow, and black on the first superposed surfaces to be bonded.
b and 40c are provided, and the postcard paper piece 39 is printed with notification information 41 which is character information. In order to maintain the reliable adhesive force of the pressure sensitive adhesive 36, each printing portion 40a, 40b, 40 including screen printing is used.
The aggregate area of c and 41 is 30 to 6 of the area of the adhesive application portion.
It may be set to 0%, preferably 35 to 55%, and more preferably 40 to 50%.

The pressure-sensitive adhesives 33 and 36 described above are the same as the pressure-sensitive adhesive 10 of the first embodiment. Since the pressure-sensitive adhesive 33 is provided on the overlapping surface where no information is printed and is not peeled off after bonding, a pressure-sensitive adhesive which is difficult to peel off after normal bonding may be used.

Next, a postcard sheet 31 shown in FIG. 7 and FIG.
A method of creating the postcard 42 shown in FIG. 9 will be described. First, in the postcard sheet 31, after the address information 43 is printed by the printer (not shown) in the address entry field 32 of the postcard paper piece 34, the postcard middle paper piece 37 and the postcard bottom paper piece 3 are printed.
The first overlapping surface, which is the front surface side of 9, is folded and folded at the folding perforations 38, and the second overlapping surface, which is the rear surface side of the postcard paper piece 34 and the postcard medium paper piece 37, is the folding perforation. It is folded at 35 and folded in three in a Z shape.
Next, pressure is applied to the adhesives 36 and 33 so that the adhesives 36 and 33 are peelably adhered and the end of the post-folding paper piece 39 as shown in FIG.
The postcard 42 becomes a finger hook portion 44 which slightly protrudes from the ends of the folded portions 4, 37.

In this embodiment, as in the first embodiment, the postcard 42 can be mailed in the same manner as a normal postcard, while the addressee who has received the postcard 42 puts his finger on the finger-holding portion 44 to postcard postcard piece 37. The printed sheets 40a, 40b, 4 which were hidden when the postcard paper piece 39 and the postcard paper piece 39 were separated and opened in a spread state.
0c and 41 can be visually recognized. The rest of the configuration and operation of this embodiment are the same as those of the first embodiment, so a description thereof will be omitted.

The present invention is not limited to the above-mentioned embodiment, and for example, the pattern printing portions 12a, 12b, 14a, 14b, 40a, 40 by screen printing.
The printing of b, 40c is not limited to four colors of cyan, magenta, yellow, and black, and any combination of three or more colors may be used. The three colors are not only a single color but also a mixture of a plurality of colors. It is also possible to use three kinds of the above colors or to combine a single color and a mixed color. Further, the half-folded state may be a half-folded state in which the finger-folded portions 17 are completely overlapped as in the first embodiment, or a partially-folded half-folded state. Further, in addition to the above-described structure, the finger hooks 17 and 44 are provided by breaking apart from the perforation and removing a part of other corresponding postcards, particularly corners, or providing notches. Exposing some of the other postcard pieces, especially the corners,
Alternatively, it may be configured by providing a tab,
The finger hooks 17 and 44 may not be provided. Since the pressure-sensitive adhesives 10, 33, 36 do not adhere unless certain conditions are applied, they are convenient and do not hinder handling even if they are applied to the entire front and back surfaces of the sheet, but these pressure-sensitive adhesives are convenient. Nos. 10, 33 and 36 may be partially applied to the overlapping surface. Furthermore, it goes without saying that the present invention can be applied to various cards and various forms in addition to postcards 18 and 42.

[0023]

As is apparent from the above description,
According to the present invention, on the peelable pressure-sensitive adhesive applied to the superposed surfaces to be adhered, printing and printing portions including screen printing using appropriate three or more color inks are provided on the peelable pressure-sensitive adhesive. Since it is provided so as to cover up to 60%, it is possible to print various color patterns and patterns without inadvertently peeling off the adhesive surface at the time of handling after adhering the overlapping surfaces, and it is pressure sensitive because it is screen printing. While there is a portion where the adhesive is exposed, the adhesive force can be surely secured, while the peeling operation after the adhesion is facilitated and the applied printing or the printing is not damaged. Further, when the printed portion is provided at the peeling start end portion on the overlapping surface side, the adhesive force at the peeling start end portion is weakened, so that the peeling start operation becomes easy.

[Brief description of drawings]

FIG. 1 is a schematic plan view of a front surface side of a folding adhesive sheet that is folded in two.

FIG. 2 is an end view taken along the line AA of FIG.

FIG. 3 is a schematic plan view of the back surface side of a folding adhesive sheet that is folded in two.

FIG. 4 is a perspective view schematically showing a postcard creation process.

FIG. 5 is a schematic plan view showing the front side of a created postcard.

6 is an end view taken along line BB of FIG.

FIG. 7 is a schematic plan view of the front surface side of a folding adhesive sheet that is folded in three.

FIG. 8 is an end view taken along line CC of FIG.

FIG. 9 is a schematic end view of a created postcard.

[Explanation of symbols]

1,31 Postcard sheet 2,35,38 Folding perforations 3a, 3b, 32 Address entry field 4,34 Postcard paper piece 5a, 5b From information 8,39 Postcard paper piece 10, 33,36 Pressure-sensitive adhesive 12a , 12b, 14a, 14b, 40a, 40b, 4
0c Design printing part 13a, 13b, 41 Notification information indication 15a, 15b, 15c Solid printing part 16a, 43 Address information 17,44 Finger rest part 18,42 Postcard 37 Postcard medium paper piece

Claims (2)

[Claims] Claims: 1. A fold portion is provided, and an overlapping surface that is folded at this fold portion can be printed or printed, and is not normally bonded, but can be bonded when a certain pressure is applied, After adhesion, a pressure-sensitive adhesive which can be peeled off is applied, and printing and printing portions including screen printing using appropriate three or more color inks are applied to the pressure-sensitive adhesive at 30 to 60 times the adhesive-applied portion. A folding adhesive sheet characterized by being provided so as to reach up to 100%. 2. The folding adhesive sheet according to claim 1, wherein a printed portion is provided at a peeling start end portion on the overlapping surface side.