JPH09309285A - Continuous form - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a jam of paper at burr parts even in situations where burr parts exist in perforation line parts by forming a continuous form in a manner shifting positions of opposite lateral perforation lines at zigzag fold lamination in a continuous form having lateral perforation lines. SOLUTION: A continuous form 100 of a postcard paper to be folded in Z-shape has different positions of lateral perforation lines 31 in the forwarding direction relative to a conventional continuous form. In this continuous form 100, a lateral perforation line 31 in one page is provided at a position slightly dislocated from a position dividing one page into two in the forwarding direction. Namely, the size (a) in an upper unit vertical direction and the size (b) in a lower unit vertical direction are not equal in a relation of a≠b. Besides, in the case of reseparable postcard paper, a reseparable pressure sensitive adhesive layer is provided in a predetermined face. The continuous form is folded in zigzag relation to be laminated in a block shape.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuous foam having horizontal perforations, which is used for various purposes such as postcard paper, letter-sealing paper, pamphlets, slips, and the like. For example, repeeling formed for temporary adhesion. A pressure-sensitive adhesive continuous foam having a pressure-sensitive adhesive layer having a pressure-sensitive adhesive property or a non-releasing or re-peeling pressure-sensitive adhesive layer formed for permanent adhesion. In particular, it relates to a continuous foam in which blocking is unlikely to occur at the perforations when stacked at the time of stocking.

[0002]

BACKGROUND OF THE INVENTION Currently, continuous foams have pressure sensitive adhesive properties,
Various materials such as heat-sensitive adhesiveness, rewet type adhesiveness, or foams having no adhesive layer for these are used.
Under such circumstances, a so-called pressure-sensitive adhesive foam, which is a pressure-sensitive adhesive continuous foam formed by coating a pressure-sensitive adhesive layer on one or both surfaces of paper for re-peeling or permanent adhesion, is widely used. It is used. FIG. 12 is a plan view of one page of the conventional continuous pressure-sensitive adhesive foam 200 as viewed from the front side. The pressure-sensitive adhesive foam 200 illustrated in the figure is a Z-fold postcard paper consisting of a left piece 11, a middle piece 12, and a right piece 13, and the flow direction (top and bottom direction in the drawing) is included in one page when zigzag folding is performed. ) Is attached to two sheets of one unit of postcard paper, and one page is a form composed of two units for convenience. Although the number of impositions depends on the size of one unit, in the case of a postcard or the like, usually two impositions are taken into consideration in consideration of the top and bottom restrictions on the paper feed unit and the paper ejection unit of the printer. Then, horizontal perforations 31 and 32 are provided between the respective units. Of these, the horizontal perforations 31 are provided for separation between units within one page, and the horizontal perforations 32 are provided for separation and zigzag folding between pages, that is, between units across pages. Further, a vertical perforation 33 is provided for Z-folding between each piece in one unit, and a vertical perforation 34 is provided for separating the marginal portions 4 on both sides of the form. Further, as a matter of course, the horizontal perforation 31 for separating one unit of foam attached on two sides in one page is conventionally provided at a position that divides one page into two equal parts in the flow direction. . That is, the vertical size of each unit in one page in the figure is equal to c. Further, such a pressure-sensitive adhesive foam 200 is used by zigzag-folding a continuous foam in a block shape as shown in FIG. 5 in a stocked state such as during a printing process.

[0003]

By the way, for re-peeling,
Alternatively, when the pressure-sensitive adhesive layer is provided for permanent adhesion, it is usually provided on almost one side or both sides of the sheet unless it is a sealed letter in which only the periphery is adhered. Therefore, the pressure sensitive adhesive layer is also formed at the perforations. Further, even in the case of a sealed letter, a pressure sensitive adhesive layer is provided on the periphery because of the necessity of adhering the periphery, but the pressure sensitive adhesive is also applied to the perforated portion for folding and separating provided on the periphery. There is also a form in which layers are provided. As shown in the cross-sectional view of FIG. 6, the perforations are formed after the pressure-sensitive adhesive layer 2 is formed on the base material 1 in the production of foam.
Mince processing is performed including the pressure-sensitive adhesive layer 2 and perforation 3
However, at the same time, the burr 5 is generated (on the back surface side when the sewing process is performed from the front surface side). When such pressure-sensitive adhesive foams are stacked in blocks by zigzag folding as shown in FIG. 5, as shown in FIG. 7, the pressure-sensitive adhesive foams may have a front surface side and a front surface side, and a back surface side and a back surface. Face to face. As a result, in the perforation portion, as shown in FIG. 8, when the back surfaces are opposed to each other, the burrs on the opposing back surfaces are almost in point contact with each other, so that the self-weight of the foam tends to concentrate on the perforation portion. As a result of applying a strong pressure to the pressure-sensitive adhesive layer portion formed also in the portion, blocking on the back surface side is particularly scattered. Even if the perforation processing is performed from the reverse side, burrs are generated on the front surface side, and similarly blocking occurs between the front surface sides.
Burrs on the surface side are not desirable because they may damage the print drum surface of a non-impact printer (where a soft metal film such as photosensitive selenium is formed) during printing.
Further, in the case of a foam specification in which the front surface side is the re-peeling surface and the rear surface side is the permanent adhesive surface, the adhesive force on the rear surface side is set to be high, so that blocking on the rear surface side is likely to occur.

FIG. 9 is a schematic explanatory view of a sewing machine processing apparatus. A sheet 71 on which a pressure-sensitive adhesive layer has been formed passes through a horizontal sewing machine processing section 72, a vertical shimin processing section 73, and a pressing processing section 74 in this order, and the horizontal sewing machine and A vertical sewing machine is applied to the paper 71. FIG. 10 shows a cross-sectional view for explaining the horizontal machined portion of the same drawing, and FIG. 11 shows a cross-sectional view of the vertical machined portion. In the horizontal perforation process, as shown in FIG. 10, the paper 71 is perforated by a horizontal perforation blade 76 attached to a groove formed in the width direction of the rotary cylinder 75 and a hard chrome-plated impression cylinder 77. Since a groove blade can be used as the horizontal perforation blade 76, the burr of the horizontal perforation can be made relatively small by reducing the thickness of the groove blade. On the other hand, in the vertical sewing machine processing, as shown in FIG. 11, the disk-shaped vertical sewing machine blade 78 generally has a small diameter, and if it is thin, the groove blade cannot be used due to durability problems such as the blade breaking, and it becomes a thick blade with large burrs. . However, since the vertical perforations can be pressed, in order to prevent the printer drum from being soiled, the vertical perforations are further pressed to reduce the burrs at the perforations.

As described above, since the conventional perforation in the pressure-sensitive adhesive foam is a method of pushing out the paper regardless of whether the perforation is held or not, the perforation is a method of pressing the paper. The burr of the eye is inevitable to some extent. This burr causes a problem that blocking is likely to occur when the sheets are stacked by zigzag folding. Also, since there is no pressing work especially on the horizontal perforations,
It is not possible to make the burr small, and when this burr is picked up on the unsealed surface side, or when the stacking is attempted to peel off the parts joined by blocking because of the strong pressure applied when stacking it, It has a substantial adhesive force and has a problem such as double feeding with a printer (NIP). Further, the above description has particularly described blocking is likely to occur, a continuous foam having a pressure-sensitive adhesive layer has been described, but when stacked by zigzag folding, the problem that blocking is likely to occur at the same time as overlapping horizontal perforations, It also occurs in continuous foams which are not provided with an adhesive layer at all, or continuous foams which are provided with a heat-sensitive adhesive layer or a re-wet type adhesive layer due to fibers of paper being entangled with each other due to burrs.

[0006]

Therefore, in the continuous foam of the present invention, particularly for the horizontal perforations, the lateral perforations facing each other when stacked by zigzag folding are provided at positions offset from each other, and Even if there are burrs, make sure that the burrs do not completely face each other and face each other, and the paper in the burrs is entangled, or the burrs have adhesive layers such as pressure-sensitive adhesive layers, heat-sensitive adhesive layers, rewet type adhesive layers, etc. Was prevented from adhering and blocking was not caused even when stocked in a zigzag fold. In addition, the pressure-sensitive adhesive layer to be the pressure-sensitive adhesive foam may be non-peelable or re-peelable.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the continuous foam of the present invention will be described below. FIG. 1 illustrates a continuous foam 10 of the present invention.
As an example of No. 0, it is a plan view of one page of a form used for a Z-folded postcard paper as viewed from the front side. The continuous foam 100 of the present invention shown in FIG. 1 is a foam in which the position of the lateral perforations 31 in the flow direction is different from that of the conventional continuous foam 200 shown in FIG. That is,
The continuous foam 200 of the present invention illustrated in FIG.
This is a Z-fold postcard paper consisting of 1, a middle piece 12, and a right piece 13, and one unit of the postcard paper is placed on two sides in the flow direction (top and bottom direction of the drawing) on one page when zigzag folding. A page is a form composed of two units for convenience. Horizontal perforations 31 and 32 are provided between the units. Of these, the horizontal perforations 31 are provided for separation between units within one page, and the horizontal perforations 32 are provided for separation and zigzag folding between pages, that is, between units across pages. Further, a vertical perforation 33 is provided for Z-folding between each piece in one unit, and a vertical perforation 34 is provided for separating the marginal portions 4 on both sides of the form. And
In the present invention, as the horizontal perforation provided on one page, the horizontal perforation 31 is provided at a position slightly deviated from the position where one page is divided into two equal parts in the flow direction. That is, the vertical size a of the upper unit and the vertical size b of the lower unit in one page in the figure are not equal to a ≠ b. In the case of removable postcard paper, a removable pressure-sensitive adhesive layer is provided on a predetermined surface (not shown).

The continuous foam is zigzag folded as shown in the perspective view of FIG. 2 and stacked in blocks as shown in FIG. FIG. 3 shows that when the zigzag folding is performed,
It is explanatory drawing that horizontal perforations do not overlap. In the conventional continuous foam, as shown in Fig. 3 (b), the horizontal perforation 3
1 overlap each other, but in the continuous foam of the present invention, FIG.
As shown in (a), the perforations 31 do not overlap with each other (since the positions are shifted in the horizontal direction in the drawing). The amount of displacement of the horizontal perforations depends on the size of the burr, but the distance between the displaced horizontal perforations is at least about 0.5 mm, preferably 1 to
If it is set to about 2 mm, more preferably about 3 mm, the blocking prevention effect can be obtained more reliably. As shown in FIG. 8, the burr has a width depending on the perforation width and the paper thickness, and if the burr is displaced by this width, the cut paper parts at the facing burr parts do not contact each other. . Therefore, in order to shift the width of the burr at least from the width of the normally used paper and perforations, it is preferable that the distance between the horizontal perforations is at least about 0.5 mm or more. To shift the horizontal perforations means that, in the case of two-sided layout, the top and bottom unit foam top and bottom sizes are different from each other in the conventional case. Therefore, two kinds of unit foams having slightly different top and bottom sizes can be obtained from one continuous foam, but the blocking prevention effect can be obtained even if the shifting amount is not so large, so that there is no problem in practical use. For example, if the top and bottom are 6 inches (15
(2.4 mm) In the case of 2-sided postcard paper, the upper side is +
If 0.5mm is 152.9mm, the lower side is -0.5.
It becomes 151.9 mm in mm. In this case, the lateral perforations at the time of zigzag folding are displaced from each other by 0.5 mm, and as a result, the distance between the lateral perforations can be doubled to 1.0 mm. However, there are a wide range of sizes that can be recognized as postcard paper, and there is no problem with this size in this respect. Also, even when using this continuous form, such as printing and sealing to make postcards, since it is processed in the continuous form, the printing position etc. does not change, and the final In addition, since the top and bottom sizes are subtly different (1.0 mm in the above example) when separated into one unit of foam (postcard or the like), the foam can be used without any problem in terms of usage.

Further, in order to provide such slightly deviated lateral perforations, the device can be used as it is, if some modifications are made to the existing sewing machine processing device.
An example is shown in FIG. FIG. 4 is an explanatory view for fixing the horizontal sewing machine blade 76 by shifting it to the rotary cylinder 75 used for the horizontal sewing machine processing described in FIGS. 9 and 10. In the same drawing, the respective fixing positions of the horizontal sewing machine blades 76 fixed to the circumference of the rotary cylinder 75 will be described. One rotation of the rotary cylinder 75 corresponds to one page of the foam. The rotating cylinder 75 is provided with two grooves 79a and 79b of the same size,
Conventionally, the horizontal sewing machine blades 76 are fixed to the central positions of the grooves. However, in the case of the continuous foam of the present invention, as shown in the figure, in the groove 79a on the upper side of the drawing, the horizontal sewing machine blade 76a is biasedly fixed on the left side of the drawing by the pressing metal fitting 8a. On the other hand, in the groove 79b on the lower side of the drawing, the horizontal sewing machine blade 76b
Similarly, on the left side of the drawing, the metal plate 8b is biased and fixed. As a result, the size between the horizontal perforations, which is determined by the distance between the horizontal shimin blades 76a and 76b, is b on the left side of the drawing, where a is on the right side of the drawing, and a ≠ b, and a> b. When the zigzag is folded, the horizontal perforations are 0.3 each other.
If the distance is shifted by mm and the distance is set to 0.6 mm,
The amount of displacement of the horizontal sewing machine blade in the groove is 0.3 mm, and the amount of displacement of the horizontal sewing machine blade in the groove is only 0.5 if the distance between the opposing horizontal perforations is 1.0 mm.
mm is sufficient.

FIG. 4 illustrates that the mechanical method of shifting the horizontal perforations in the sewing machine processing can be applied to the conventional processing apparatus. The pressing metal fitting shown in FIG.
Only one method is shown in principle, and other methods may of course be used. For example, in practice,
When fixing the horizontal shimin blade in the groove, there is a form in which the horizontal sewing blade is set in the groove of the holder having a U-shaped long groove and then the holder is fixed in the groove, not directly. In that case, between the holder and the horizontal sewing machine blade, or between the rotary cylinder and the holder, one holding metal fitting may be inserted, or both holding metal fittings may be made to have different thicknesses so as to be fixed. . Further, by using the pressing metal fittings, it is possible to easily perform the processing of the sewing machine in the conventional position without adjusting the horizontal perforations and the adjustment thereof. Further, as a method not using such a pressing metal fitting, it is also possible to control the rotation of the rotary drum by a servomotor or the like to shift the timing at which the horizontal perforation blade inserts a perforation. In this case, it is not necessary to fix the horizontal sewing machine blade to the rotary cylinder and disengage it.

As described above, the continuous foam of the present invention is particularly characterized by the position of the horizontal perforations. Therefore, other parts, for example, pressure-sensitive adhesive layer, heat-sensitive adhesive layer, if the adhesive layer such as rewet type adhesive layer is provided, the pattern shape of the adhesive layer, its material etc., Any conventionally known one may be used. For example, in the case of a pressure-sensitive adhesive continuous foam, in FIG.
A pressure-sensitive adhesive layer is provided on the entire back surface of each piece of the right piece. On the front side, the left piece 11 serves as an address field on Z-fold postcard paper and is not used even if the pressure-sensitive adhesive layer is formed. Piece 13
Only formed. Alternatively, in the case of removability, the pattern shape of the pressure-sensitive adhesive layer is the surface to be bonded (see FIG.
In general, the front surface side of the middle piece 12 and the right piece 13 and the rear surface side of the left piece 11 and the middle piece 12 are formed to be almost the entire surface, but a pattern shape that is not almost the entire surface, for example, a rectangular shape. A circular unformed portion is provided inside the pressure-sensitive adhesive layer, and a "partial" or a "partial" shape such as a "hit" or "off" and a line with concealing information is optional. Or, in the case where the inside of a sealed letter etc. is not adhered and only the periphery is adhered,
The pattern shape of the pressure-sensitive adhesive layer is formed only on the periphery.

Next, the constituent materials of the continuous foam of the present invention will be described. In the continuous foam of the present invention, as described above, the adhesive mechanism of the substrate, the adhesive layer such as the pressure-sensitive adhesive layer is not particularly limited, and the pressure-sensitive adhesive layer that is particularly easy to block is a re-peelable pressure-sensitive adhesive, or Conventionally known ones such as a permanent adhesive can be used.

For example, the base material 1 may be N, which is conventionally known.
Paper such as IP (non-impact printer) paper, synthetic paper, polypropylene resin, cellulose resin,
Examples thereof include resin films such as polyester resins and vinyl chloride resins, non-woven fabrics, and composites thereof.

When the pressure-sensitive adhesive layer 2 is provided, a conventionally known re-peelable pressure-sensitive adhesive may be used if it has removability. For example, there is a re-peelable pressure-sensitive adhesive comprising a conventionally known NR (natural rubber) -based pressure-sensitive adhesive as a main adhesive agent and a filler such as silica or starch. Further, even in the case of non-peelability, a conventionally known non-peelable pressure-sensitive adhesive or adhesive may be used. For example, when a pressure-sensitive adhesive layer having removability is used, as an adhesive main agent, in addition to natural rubber (NR), acrylic modified natural rubber (P
MMA-NR), styrene-butadiene rubber (SBR)
And rubber latex of carboxy-modified SBR (XSBR), acrylonitrile-butadiene rubber (NBR), acrylic resin latex such as polyacrylic acid ester, and the like. As the filler, other than the above,
Examples include inorganic fillers such as silica and talc, and organic fillers such as resin particles such as polystyrene and acrylic resin. The pressure-sensitive adhesive layer is formed on the whole surface or a part of the pressure-sensitive adhesive composition by a printing means such as gravure printing or flexographic printing using a composition of a releasable or non-peeling pressure-sensitive adhesive as an ink, or the composition is coated with the composition. It is provided as a liquid by gravure coating or the like, which is entirely or partially coated.

In the continuous foam of the present invention, when the adhesive layer is provided, it may be a heat-sensitive adhesive layer or a rewet type adhesive layer. As the heat-sensitive adhesive layer and the re-wetting type adhesive layer, any conventionally known one may be used. For example, as the heat-sensitive adhesive layer, a vinyl acetate resin such as ethylene-vinyl acetate copolymer, a polyester resin, an acrylic resin, polyethylene, polypropylene, a heat-sensitive adhesive such as wax is used, and as the rewet type adhesive layer, , Polyvinyl alcohol, gelatin,
Water-soluble adhesives such as glue, gum arabic, dextrin and modified starch are used. Further, various additives such as titanium oxide, silica, calcium carbonate, kaolin, clay, starch fillers, tackifiers and the like are appropriately added to these components in order to adjust the adhesiveness and the like. Note that each of these adhesive layers may or may not be removable.

Alternatively, the continuous foam of the present invention is adhered between an adhesive layer such as a pressure-sensitive adhesive layer, a heat-sensitive adhesive layer and a rewet type adhesive layer and a substrate, that is, on a substrate below the adhesive layer. A form in which printing is performed before forming the layer may be used. Further, the continuous form of the present invention has been described using Z-fold postcard paper as an example, but the continuous form is not limited to postcard paper as long as it has a horizontal perforation at a position facing when zigzag-folding, and is used as a pamphlet or the like. The use is arbitrary. Also, the folding form is Z
In addition to fold type, three-fold type, four-fold type,
It is possible to take various conventionally known forms such as a half-fold type, or a half-fold type in which one of the facing paper pieces has the other half, that is, a size such as 1/3. In addition, in the continuous foam of the present invention, these adhesive layers may be omitted. Even if there is no adhesive layer, it is possible to effectively prevent the occurrence of blocking due to the entanglement of paper fibers at the burr portion.

[0017]

[Example] As a base material of a continuous foam which is a Z-fold postcard paper, a high quality paper for NIP (Excellent foam <90> manufactured by Nippon Paper Industries Co., Ltd.) is used, and a right piece and a re-peeling surface of this base material After offset printing the concealment information on the surface side of the middle piece, by gravure printing of a re-peelable pressure-sensitive adhesive having the following composition, a pressure-sensitive adhesive layer is formed on both entire surfaces of the base material including the part to be perforated, and then 1, horizontal perforations and vertical perforations are provided, and the horizontal perforations in the page are arranged so that their mutual distances are displaced by 1 mm in the flow direction during zigzag folding.
The continuous foam of the present invention was obtained as a re-peelable pressure-sensitive adhesive foam. This continuous foam did not cause blocking at the perforations when stacked in a zigzag fold.

Removable adhesive Adhesive base agent: Soap-free emulsion polymerized NBR latex 20 parts by weight (Nippon Zeon Co., Ltd., SX1503, solid content 43%) Filler: Crosslinked polystyrene resin particles (average particle size 6 μm) 3 Parts by weight (PB30006E, solid content 82%, manufactured by Sumitomo Chemical Co., Ltd.) Diluting solvent: Isopropyl alcohol Appropriate amount

[0019]

According to the continuous foam of the present invention, since the horizontal perforations facing each other when stacking in a zigzag folded state at the time of stock are provided so as to be offset from each other, the foams are entangled or bonded to each other at the horizontal perforations. Therefore, blocking can be prevented. Therefore, it is excellent in processability such as print process. In particular, it is effective when the pressure-sensitive adhesive foam is provided with a re-peelable or non-peelable pressure-sensitive adhesive layer.

[Brief description of drawings]

FIG. 1 is a plan view of one page of a Z-fold postcard paper viewed from the front side as an example of a continuous form of the present invention.

FIG. 2 is a perspective view showing a state in which the continuous foam of FIG. 1 is folded in zigzag.

FIG. 3 is an explanatory diagram of zigzag folding in which horizontal perforations do not overlap each other. (A) is the present invention, (b) is a conventional form.

FIG. 4 is an explanatory view of fixing the horizontal sewing machine blade by shifting it with a pressing metal fitting and fixing it to the rotating drum.

FIG. 5: A state in which foams are stacked by zigzag folding at the time of stocking.

FIG. 6 is a cross-sectional view illustrating burrs generated at perforations.

FIG. 7 is a diagram illustrating the details of stacking by zigzag folding and stocking as in FIG.

FIG. 8 is a cross-sectional view illustrating a folded state of perforated portions in FIGS. 3 and 5.

FIG. 9 is a schematic explanatory view of a sewing machine processing device.

10 is an explanatory diagram of a horizontal sewing machine processing portion in the apparatus of FIG. 7. FIG.

FIG. 11 is an explanatory diagram of a vertical sewing machine processing portion in the apparatus of FIG. 7.

FIG. 12 is a plan view of a Z-fold postcard paper as an example of a conventional continuous form as viewed from the front side.

[Explanation of symbols]

1 Base Material 11 Left Piece 12 Middle Piece 13 Right Piece 2 Pressure Sensitive Adhesive Layer 3 Perforations 31 Horizontal Perforations (within page) 32 Horizontal Perforations (between pages) 33 Vertical Perforations 4 Marginal part 5 Burr 6 Perforations 71 Paper 72 horizontal sewing machine processing section 73 vertical sewing machine processing section 74 pressing processing section 75 rotary cylinder 76, 76a, 76b horizontal sewing machine blade 77 impression cylinder 78 vertical sewing machine blade 79a, 79b groove 8 pressing metal fitting 100 continuous form of the present invention (Z postcard paper) 200) Conventional continuous form (for Z postcards) a, b, c Vertical unit size for 1 unit in 1 page

Claims (5)

[Claims] 1. A continuous foam having horizontal perforations, wherein when stacked in a zigzag fold, the positions of the opposing horizontal perforations are shifted in the flow direction. 2. The continuous foam according to claim 1, which has a pressure-sensitive adhesive layer and is pressure-sensitive adhesive. 3. The pressure sensitive adhesive layer is removable.
Described continuous form. 4. The pressure-sensitive adhesive layer is non-peelable.
Described continuous form. 5. The continuous foam according to claim 1, which is a postcard paper.