WO2014102969A1

WO2014102969A1 - Removably superposed sheets and label using same

Info

Publication number: WO2014102969A1
Application number: PCT/JP2012/083895
Authority: WO
Inventors: 重見　一臣; 信行齋藤
Original assignee: トッパン・フォームズ株式会社
Priority date: 2012-12-27
Filing date: 2012-12-27
Publication date: 2014-07-03

Abstract

On the lower base material-contacting surface of an upper base material, a UV-curable shrink layer and a release agent layer are formed sequentially. The surface of the upper base material that is opposite to the lower base material-contacting surface is the printed surface or writing surface. An adhesive layer is formed on the upper base material-adhering surface of the lower base material.

Description

Re-peelable overlay sheet and label using the same

The present invention relates to a releasable superposed sheet in which an upper base material and a lower base material are superposed and adhered so as to be removable, and a label using the same.

In recent years, when delivering a delivery product to a delivery destination, it is common to attach a delivery slip to the delivery product. The delivery slip is composed of, for example, a delivery slip and a sticker slip, and has a structure in which the delivery slip is removably bonded with a removable adhesive so that the delivery slip can be taken home after delivery. It has been.

There are those proposed in the following patent documents as such a releasable overlapping sheet having a structure to be peeled after a delivery slip or a postcard.

The one proposed in Patent Document 1 relates to a label, and a medium or ultraviolet curable varnish sealing layer is formed on an intermediate label substrate, and an ultraviolet curable pseudo adhesive layer is formed on the sealing layer. Is formed and a surface label base material is provided. In this structure, the surface label substrate is peeled off from the intermediate label and the sealing layer together with the pseudo adhesive layer.

In addition, what is proposed in Patent Document 2 relates to a reciprocating postcard, in which an adhesive layer is formed on a second layer sheet, and a first layer sheet in which a release agent layer is formed on the adhesive layer is provided. It is of the provided structure. In this structure, the first layer sheet is peeled from the second layer sheet and the adhesive layer together with the release agent layer.

JP 2009-042584 A Japanese Patent No. 4391279

In the releasable superposed sheet as described above, it is desired to improve the handleability without curling the peeled sheet.

However, the releasable layered sheets including those proposed in Patent Documents 1 and 2 have a problem that curling occurs on the peeled base material, resulting in inconvenience in subsequent handling. In particular, what has been proposed in Patent Documents 1 and 2, after being printed and printed on the printing surface formed on the surface of the surface label substrate and the printing surface formed on the first layer sheet, When these are peeled off, the occurrence of curling is remarkable, and the curling becomes more noticeable as the surface label substrate and the first layer sheet on the peeling target side become thinner.

The present invention has been made in view of the above-described problems of the technology, and provides a releasable superposed sheet that can reduce the occurrence of curling at the time of peeling of a substrate to be peeled, and a label using the same. The purpose is to do.

In order to achieve the above object, the present invention provides:
A releasable superposed sheet in which an upper base material and a lower base material are superposed and adhered so as to be removable,
The upper base material is formed with an ultraviolet curable shrink layer and a release agent layer sequentially on the adhesive surface with the lower base material, and the surface opposite to the adhesive surface is a printing surface or a writing surface,
The lower base material has an adhesive layer formed on the adhesive surface with the upper base material.

The adhesive layer is an aqueous emulsion adhesive.

Also, a label using the releasable overlay sheet,
The lower base material has a pressure-sensitive adhesive layer formed on the surface opposite to the adhesive surface with the upper base material, and the peelable base material is detachably bonded by the pressure-sensitive adhesive layer.

According to the present invention, the ultraviolet curable shrink layer and the release agent layer are sequentially formed on the adhesive surface of the upper substrate with the lower substrate, and the upper layer is formed by the adhesive layer formed on the lower substrate and the release agent layer. By configuring the base material and the lower base material so that they can be peeled off again, when the upper base material is peeled off from the adhesive layer of the lower base material together with the shrink layer and the release agent layer, the upper base material is printed. The curling force generated on the surface or writing surface is suppressed by the shrinking force generated on the side opposite to the printing surface or writing surface by the shrink layer formed directly on the adhesive surface of the upper substrate with the lower substrate, and the upper substrate Generation of curling can be reduced. Moreover, even when a part of the release agent layer remains on the adhesive layer side when the upper substrate is peeled from the lower substrate, a shrinkage layer exists between the upper substrate and the release agent layer. In addition, stable shrinkage due to the shrink layer can be ensured. As a result, after peeling the upper base material from the lower base material, information such as a barcode displayed on the printing surface or writing surface of the upper base material can be mechanically accurately read. The handling of organizing and storing can be improved.

In addition, by using an aqueous emulsion adhesive as the adhesive layer, the shrinkage layer, or the shrinkage layer and the release agent layer indicate that moisture until the adhesive layer dries infiltrates into the upper substrate and causes curling. The penetration of moisture can be prevented, and further curling reduction can be achieved in combination with curling reduction by the shrink layer.

In addition, when the lower substrate is used as a label in which an adhesive layer is formed on the surface opposite to the adhesive surface with the upper substrate, and the release substrate is removably adhered by this adhesive layer, The peeling base material is peeled off from the lower base material and attached to the delivery product or the like by the adhesive layer.

It is a perspective view showing a 1st embodiment of a releasable superposition sheet of the present invention. It is sectional drawing of the delivery slip shown in FIG. 1A. It is a production conceptual diagram of the delivery slip shown in Drawing 1A and Drawing 1B. It is a production conceptual diagram of the delivery slip shown in Drawing 1A and Drawing 1B. It is a figure which shows the state which peels the upper base material of a delivery slip from the delivery slip shown to FIG. 1A and FIG. 1B. It is a figure for demonstrating the effect | action produced in the peeled upper base material. It is a perspective view which shows the example which applied the releasable overlapping sheet which concerns on this invention to a concealment postcard. It is sectional drawing of the concealment postcard shown to FIG. 4A. It is a perspective view which shows 2nd Embodiment of the releasable superimposition sheet | seat of this invention. FIG. 5B is a cross-sectional view of the delivery slip shown in FIG. 5A. It is a figure which shows the shape of the contact bonding layer shown to FIG. 5B. FIG. 6 is a conceptual diagram of production of the delivery slip shown in FIGS. 5A to 5C. FIG. 6 is a conceptual diagram of production of the delivery slip shown in FIGS. 5A to 5C. FIG. 6 is a diagram showing a state where an upper base material of a delivery slip is peeled from the delivery slip shown in FIGS. 5A to 5C. FIG. 6 is a diagram showing a state where an upper base material of a delivery slip is peeled from the delivery slip shown in FIGS. 5A to 5C. It is a figure which shows the structural example of the other contact bonding layer of the releasable lamination sheet of this invention. It is a figure which shows the structural example of the other contact bonding layer of the releasable lamination sheet of this invention. It is a figure which shows the structural example of the other contact bonding layer of the releasable lamination sheet of this invention. It is a figure which shows the structural example of the other contact bonding layer of the releasable lamination sheet of this invention. It is a perspective view which shows 3rd Embodiment of the releasable superimposition sheet | seat of this invention. It is sectional drawing of the delivery slip shown to FIG. 10A. It is a figure which shows the shape of the releasing agent layer shown to FIG. 10B. FIG. 10 is a conceptual diagram of production of the delivery slip shown in FIGS. 10A to 10C. FIG. 10 is a conceptual diagram of production of the delivery slip shown in FIGS. 10A to 10C. FIG. 10 is a diagram showing a state where an upper base material of a delivery slip is peeled from the delivery slip shown in FIGS. 10A to 10C. FIG. 10 is a diagram showing a state where an upper base material of a delivery slip is peeled from the delivery slip shown in FIGS. 10A to 10C. It is a figure which shows the structural example of the other releasing agent layer of the releasable superposition sheet of this invention. It is a figure which shows the structural example of the other releasing agent layer of the releasable superposition sheet of this invention. It is a figure which shows the structural example of the other releasing agent layer of the releasable superposition sheet of this invention. It is a figure which shows the structural example of the other releasing agent layer of the releasable superposition sheet of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

In the following embodiments, dimensions are ignored for easy understanding of the invention. Moreover, although a delivery slip and a concealment postcard are shown as a releasable superposed sheet, the present invention is not limited to this, and the present invention is applicable to any sheet in which curling reduction of a base material to be peeled off is desired.

(First embodiment)
FIG. 1A is a perspective view showing a first embodiment of the releasable superposed sheet of the present invention, and FIG. 1B is a cross-sectional view of the delivery slip 11 shown in FIG. 1A.

As shown in FIGS. 1A and 1B, the present embodiment is composed of a sticker slip 12 and a delivery slip 13 formed on the same plane, and the delivery slip 13 is detachable by a separation line 14.

In the delivery slip 11, an adhesive layer 16 is formed on the back surface (lower surface in the figure) of the lower base material 15, for example, high-quality paper 35 Kg, which is a common base material for the sticker slip 12 and the delivery slip 13, and the adhesive layer 16 peels off. The base material 17 is adhered so as to be removable again, and is configured as a label having the adhesive layer 16 and the release base material 17. The adhesive layer 16 is for attaching the delivery slip 11 to the target article with strong adhesion, and may be either an adhesive or an adhesive. Moreover, the slit 18 is formed in the peeling base material 17 so that it can peel easily later.

A medium layer 19 is formed on the lower substrate 15, and an adhesive layer 20 is formed on the medium layer 19. Here, the adhesive layer 20 is formed of an aqueous emulsion adhesive. In addition, the adhesive layer 20 is not limited to this, and other adhesives (adhesion due to solidification) or adhesives (adhesives while maintaining viscosity) such as natural latex mixed with a fine particulate filler such as starch or silica. ). Particularly when an aqueous emulsion adhesive is used, the medium layer 19 can prevent moisture from penetrating into the lower substrate 15.

The medium layer 19 is formed of general medium containing titanium oxide or the like. Medium is available for liquid ink and paste ink, both of which are added to the ink to adjust the ink concentration and gloss, but when used alone, it has waterproof properties . In that sense, it is not limited to medium, and any material having waterproof performance such as varnish or fluorine-based coating agent may be used. Note that the medium layer 19 is not required unless a water-based adhesive is used for the adhesive layer 20.

The sticker slip 12 is, for example, on the surface (upper surface in the drawing) of the sticky slip base material 21 of high-quality paper 70Kg, the entry fields such as “sticker slip”, “sender”, “destination” and the barcode unique to each delivery slip. The first information layer 22 is formed by printing 12A, transmission contents, and the like. In this entry column, “sticker slip”, “sender”, “destination”, etc. are written by writing or printer (thermal, ink jet, non-impact printer). The sticker 12 is in a form adhered on the adhesive layer 20 in the corresponding region (half) of the lower base material 15.

The delivery slip 13 is, for example, on the surface (upper surface in the drawing) of the upper base material 31 of the high-quality paper 70Kg, as with the sticker slip 12, as a print surface or a writing surface, as “sticker slip”, “sender”, “destination” The second information layer 32 is formed by printing the entry field such as “” and the barcode 13A unique to each delivery slip. In this entry column, “sticker slip”, “sender”, “destination”, etc. are written by writing or printer (thermal, ink jet, non-impact printer). A shrink layer 33 and a release agent layer 34 are sequentially formed on the back surface (lower surface in the drawing) of the upper base material 31.

The shrinkable layer 33 is an ultraviolet curable type, and is used by paying attention to shrinkage when cured. Examples of the ultraviolet curable type include ultraviolet curable ink and ultraviolet curable medium. Here, as the shrink layer 33, an ultraviolet curable medium is formed with a thickness of 44 μm. At this time, the shrinkable layer 33 may be colored from the viewpoint of design and the position confirmation at the time of application. The shrink layer 33 is formed directly on the upper substrate 31 even when a part of the release agent layer 34 remains on the adhesive layer 20 side when the upper substrate 31 is peeled later. Therefore, stable contractility can be ensured. In addition, although what was proposed by the above-mentioned patent documents 1 and 2 is a structure which has the layer formed with the medium, it is for ensuring releasability to the last. In the present invention, the release agent layer 34 is responsible for releasability, and the shrink layer 33 is a layer for curling reduction due to shrinkage.

Further, when the aqueous layer adhesive is used for the adhesive layer 20, the shrink layer 33 can prevent moisture from penetrating into the upper substrate 31 by the shrink layer 33 or the shrink layer 33 and the release layer 34. it can.

A release agent layer 34 is formed on the surface of the shrink layer 33. For the release agent layer 34, for example, a general release varnish can be used as a release agent. The peeling varnish may be an ultraviolet curable type. The delivery slip 13 has a form in which the release agent layer 34 side is adhered onto the adhesive layer 20 in the corresponding region of the lower base material 15 (the remaining half of the sticking slip region).

With such a configuration, the delivery slip 13 is such that the upper base material 31 and the lower base material 15 are overlapped, and an ultraviolet curable shrinkable layer 33 is formed on the adhesive surface between the upper base material 31 and the lower base material 15. And the release agent layer 34 are sequentially formed, and the surface opposite to the adhesive surface of the upper base material 31 with the lower base material 15 becomes a printing surface or a writing surface, and adheres to the upper base material 31 of the lower base material 15. The adhesive layer 20 is formed on the surface, and the upper base material 31 and the lower base material 15 are detachably bonded by the adhesive layer 20 and the release agent layer 34.

Hereinafter, a method for producing the delivery slip 11 configured as described above will be described.

FIG. 2A and FIG. 2B are production conceptual diagrams of the delivery slip 11 shown in FIG. 1A and FIG. 1B.

First, as shown in FIG. 2A, the adhesive layer 16 is applied to the back surface of the lower base material 15, the release paper 17 is adhered, and the slit 18 is formed. Then, a medium layer 19 is formed on the surface of the lower substrate 15 by applying, for example, ultraviolet curable medium and irradiating with ultraviolet rays. At this time, a printing layer may be formed on the lower substrate 15 and the medium layer 19 may be formed thereon. Further, an adhesive layer 20 is formed on the medium layer 19 by applying, for example, an aqueous emulsion adhesive.

Next, as shown in FIG. 2B, a first information layer 22 is formed by printing on a sticker substrate 21 to be the sticker 12. Further, the second information layer 32 is formed by printing on the surface of the upper base material 31 that becomes the delivery slip 13. As a result, information necessary for delivery is printed on each of the pasting slip 12 and the delivery slip 13.

Next, ultraviolet curable medium is applied to the back surface of the upper base material 31 at a thickness of 44 μm, and the shrink layer 33 is formed by curing by irradiating with ultraviolet rays. At this time, a shrinkage layer 33 may be formed by forming a printing layer on the back surface of the upper base material 31 and applying a medium thereon. Further, a print layer may be formed on the shrink layer 33. Further, for example, an ultraviolet curable release varnish is applied on the surface of the shrink layer 33, and the release agent layer 34 is formed by irradiating and curing the ultraviolet ray. It should be noted that silicone can be contained in the release varnish, and the peel strength from the lower base material 15 of the delivery slip 13 can be adjusted by the silicone content.

Then, the release agent layer 34 formed on the upper base material 31 is brought into contact with and adhered to the adhesive layer 20 formed on the lower base material 15, and the adhesive sheet base material 21 that becomes the adhesive sheet 12 is adhered. Thus, the delivery slip 11 in which the sticker slip 12 and the delivery slip 13 shown in FIGS. 1A and 1B are on the same plane is produced.

The operation of the delivery slip 11 described above will be described below.

3A is a diagram showing a state where the upper base material 31 of the delivery slip 13 is peeled from the delivery slip 11 shown in FIGS. 1A and 1B, and FIG. It is a figure for demonstrating.

In the delivery slip 11 shown in FIGS. 1A and 1B, the peeling base material 17 is peeled off, and the adhesive layer 16 that is exposed is attached to the delivery goods. When the delivery product is delivered to the delivery destination, the delivery slip 13 is peeled from the lower base material 15 as shown in FIG. 3A. In this case, the delivery slip 13 is one in which the upper substrate 31, the shrink layer 33, and the release agent layer 34 are integrated. The delivery slip 13 has a three-layer structure in which the upper substrate 31, the shrink layer 33, and the release agent layer 34 are integrated as described above. It tries to curl to the 2nd information part 32 side by the property (paper quality and thickness) of the base material 31, and the printing or writing to the 2nd information part 32 and an entry column.

However, as shown in FIG. 3B, the delivery slip 13 has a contraction force that tends to contract toward the opposite side of the second information section 32 in the contraction layer 33 formed directly on the upper base material 31. That is, the balance between the force F0 to be curled and the contraction force F1 by the contraction layer 33 is achieved, and curling of the delivery slip 13 is reduced.

In addition, it is good also as a structure in which the shrinkage | contraction layer 33 and the releasing agent layer 34 are formed in order on the back surface of the sticking slip base material 21 used as the sticking slip 12 similarly to the delivery slip 13. This is not for the purpose of peeling the sticker 12 but for manufacturing, and the first information layer 22 and the second information layer are formed on the surface of the base material on which the sticker base material 21 and the upper base material 31 are connected. 32, the shrinkage layer 33 and the release agent layer 34 are sequentially formed on the back surface, and the separation line 14 is formed after adhering onto the adhesive layer 20 of the lower substrate 15, thereby improving the production efficiency. it can. In addition, information on a predetermined content that appears when the delivery slip 13 is peeled may be formed on the lower base material 15 in an area where the upper base 21 of the delivery slip 13 is located. .

Hereinafter, an example in which the releasable overlapping sheet according to the present invention is applied to a concealment postcard will be described.

FIG. 4A is a perspective view showing an example in which the releasable overlapping sheet according to the present invention is applied to a concealing postcard, and FIG. 4B is a cross-sectional view of the concealing postcard 41 shown in FIG. 4A.

As shown in FIG. 4A and FIG. 4B, the concealment postcard 41 of this example includes a first base material piece 42 and a second base material piece 43 that are connected by a fold line 44. In addition, concealment information 45 including barcode information is printed on the overlapping surface of the second base material piece 43, and address information 46 is formed on the opposite surface of the second base material piece 43.

An adhesive layer (for example, a pseudo adhesive layer) 20 similar to the above is formed on the overlapping surface of the first base material piece 42, and the shrink layer 33 and the release agent layer 34 are formed on the overlapping surface of the second base material piece 43. Are sequentially formed, and the first base material piece 42 and the second base material piece 43 are overlapped and bonded together by a folding line 44 to form a concealment postcard 41.

Then, when the second base material piece 43 is peeled from the first base material piece 42, a force F0 that causes the second base material piece 43 to curl toward the address information 46 is generated. The contraction force F1 acts on the opposite side to the force F0 of the formed contraction layer 33, the balance between them is achieved, and the curl of the second base material piece 43 is reduced.

Thus, since the shrinkage layer 33 is directly formed on the upper base material 13 and the second base material piece 43 of the concealment postcard 41, which are the delivery slips 13 of the delivery slip 11 to be peeled off, these have a three-layer structure. The curling after peeling can be effectively reduced by the shrinkage property of the shrinkable layer 33 coupled with the fact that the thickness of the shrinkable layer 33 is difficult to curl.

Further, since the shrink layer 33 is formed directly on the upper base material 31 and the second base material piece 43, that is, between the release agent layer 34, the upper base material 31 and the second base material piece 43 are temporarily peeled off. Even when a part of the release agent layer 34 remains on the adhesive layer 20 side, the shrinkable layer 33 formed directly on the upper base material 31 or the second base material piece 43 provides stable shrinkability. Can be secured.

Here, in the releasable superposed sheet such as the delivery slip 11 described above, curling tends to occur at the end of peeling. Accordingly, the configuration for reducing the curl at the peeling end will be described below by taking two embodiments as examples.

(Second Embodiment)
FIG. 5A is a perspective view showing a second embodiment of the releasable superposed sheet of the present invention. 5B is a cross-sectional view of the delivery slip 11 shown in FIG. 5A, and FIG. 5C is a view showing the shape of the adhesive layer 120 shown in FIG. 5B.

As shown in FIGS. 5A to 5C, this embodiment is composed of a sticker slip 112 and a delivery slip 113 formed on the same plane, and the delivery slip 113 is provided on the separation line 114 so as to be removable.

In the delivery slip 111, for example, an adhesive layer 116 is formed on the back surface (lower surface in the drawing) of the lower base material 115 serving as a common base material for the sticker slip 112 and the delivery slip 113, and peeled off by the adhesive layer 116. A base material 117 is removably adhered, and is configured as a label having the adhesive layer 116 and the peeling base material 117. The adhesive layer 116 is for attaching the delivery slip 111 to the target article with strong adhesion, and may be either an adhesive or an adhesive. In addition, a slit 118 is formed in the peeling substrate 117 so that it can be easily peeled off later.

A medium layer 119 is formed on the lower substrate 115. The medium layer 119 is formed of general medium containing silica or the like. Medium is available for liquid ink and paste ink, both of which are added to the ink to adjust the ink concentration and gloss, but when used alone, it has waterproof properties . In that sense, it is not limited to medium, and any material having waterproof performance such as varnish or fluorine-based coating agent may be used. If a water-based adhesive is not used for the adhesive layer 120, the medium layer 119 is unnecessary.

On the lower base material 115 on which the medium layer 119 is formed, a sticker slip area 150A where the sticker slip 112 is located and a delivery slip area 150B where the delivery slip 113 is located. An adhesive layer 120 is formed on the medium layer 119 in the sticker slip area 150A, and an adhesive layer 152 is formed on the medium layer 119 in the delivery slip area 150B. As shown in FIG. 5C, the adhesive layer 152 has an area corresponding to the notation portion 113B formed on the delivery slip 113 as a desizing portion 152C, and a portion of the desizing portion 152C serves as a peeling start end of the delivery slip 113, The diagonal direction is the peeling direction Toff.

The adhesive layer 152 is formed in a band shape with an adhesive on the four sides excluding the desizing portion 152C, and the adhesive layer 152A on the two sides from the peeling start end is formed with the adhesive application width a, The adhesive layer 152B on the two sides following the peeling termination region other than the two sides is formed as an adhesive application width b smaller than the application width a of the adhesive layer 152A (a> b). For example, when the dimensions of the delivery slip 113 are 100 mm wide × 92 mm long, the application width a of the adhesive layer 152A is 5 mm, and the application width b of the adhesive layer 152B is 3 mm. That is, the adhesive layer 152 includes an adhesive layer 152A formed with a coating width a and an adhesive layer 152B formed with a coating width b. Then, due to the difference in these application areas, the adhesive force in the adhesive layer 152A on the peeling start end side becomes stronger than the adhesive force in the adhesive layer 152B in the peeling end region, and the region of the peeling end in the diagonal direction from the peeling start end The adhesive strength by the adhesive is in two stages from strong to weak.

Here, for example, a water-based emulsion adhesive is used for the

adhesive layers

120 and 152, and the

adhesive layers

120 and 152 are formed in a 50% dot pattern. A low density adhesive layer 153 is formed inside the adhesive layer 152 by, for example, forming a water-based emulsion adhesive into a 30 percent halftone dot shape. In this sense, the adhesive layer 152 is a high-density adhesive layer with respect to the low-density adhesive layer 153. As described above, by forming at least the

adhesive layers

152 and 153 with a dot-like adhesive, the adhesive force can be easily adjusted. In addition, the ratio of the said halftone dot is suitably set according to the kind of adhesive agent.

The low-density adhesive layer 153 is not a necessary requirement because the delivery slip 113 is adhered by the adhesive layer 152 at the periphery thereof, but the delivery slip 113 is adhered by weak adhesion to eliminate a step, and information can be received. It is possible to prevent the influence when printing. The

adhesive layers

120 and 152 and the low density adhesive layer 153 are not limited to water-based emulsion adhesives, and other adhesives such as natural latex mixed with fine particulate fillers such as starch and silica (adhesion by solidification). Or pressure-sensitive adhesive (adhesion while maintaining viscosity) may be used.

The sticker 112 is, for example, an entry field such as “sticker”, “sender”, “destination” on the surface (upper surface in the drawing) of the sticker base 121 of high-quality paper 70 kg and a barcode 112A unique to each delivery slip. The first information layer 122 is formed by printing the transmission contents and the like. In this entry column, “sticker slip”, “sender”, “destination”, etc. are written by writing or printer (thermal, ink jet, non-impact printer). The sticker slip 112 is in a form adhered to the adhesive layer 120 formed in the sticker slip region 150A of the lower substrate 115.

The delivery slip 113 is, for example, on the surface (upper surface in the drawing) of the upper base material 141 of the high-quality paper 70 Kg as “printing slip”, “sender”, “delivery destination” as the printing surface or writing surface in the same manner as the sticking slip 112. The second information layer 132 is formed by printing an entry field such as “”, a bar code 113A unique to each delivery slip, a notation 113B for marking the start of peeling, and the like. Note that the notation portion 113B includes a case where the portion is cut out. In this entry column, “sticker slip”, “sender”, “destination”, etc. are written by writing or printer (thermal, ink jet, non-impact printer).

A shrinkage layer 133 such as an ultraviolet curable medium is formed on the back surface (the lower surface in the figure) of the upper base 131. The shrinkable layer 133 has a property of shrinking when cured, reduces curling of the middle part of the delivery slip 113, and upper base when an aqueous emulsion adhesive is used for the adhesive layer 152 and the low density adhesive layer 153. This is to prevent moisture permeation into the material 131.

A release agent layer 134 is formed on the surface of the shrink layer 133. For the release agent layer 134, for example, a general release varnish can be used as a release agent. The peeling varnish may be an ultraviolet curable type. The delivery slip 113 has a form in which the release agent layer 134 side is adhered onto the adhesive layer 152 and the low density adhesive layer 153 in the delivery slip region 150B of the lower base material 115.

Hereinafter, a method for producing the delivery slip 111 configured as described above will be described.

FIG. 6A and FIG. 6B are schematic diagrams for producing the delivery slip 111 shown in FIGS. 5A to 5C.

First, as shown in FIG. 6A, an adhesive layer 116 is applied to the back surface of the lower substrate 115 and a release paper 117 is adhered to form a slit 118. Then, a medium layer 119 is formed on the surface of the lower substrate 115 by, for example, applying ultraviolet curable medium and irradiating with ultraviolet light. At this time, a printing layer may be formed on the lower substrate 115, and the medium layer 119 may be formed thereon. Further, on the medium layer 119, except for the desizing portion 152C on the delivery slip region 150B, for example, an aqueous emulsion adhesive is applied in the form of a 50% dot by the same method as that for screen printing, for example, to form the adhesive layer 120. Then, an adhesive layer 152 (

adhesive layers

152A and 152B) is formed, and a low-density adhesive layer 153 is coated on the inner side of the adhesive layer 152 by, for example, the same method as screen printing in the form of a 30 percent dot. Form. Note that the order of forming the adhesive layer 120 and the adhesive layer 152 (

adhesive layers

152A and 152B) and the formation of the low-density adhesive layer 153 are not limited.

Next, as shown in FIG. 6B, a first information layer 122 is formed by printing on a sticker substrate 121 to be a sticker 112. Further, the second information layer 132 is formed on the surface of the upper base material 131 to be the delivery slip 113 by printing a notation portion 113B or the like used as a mark for starting peeling. As a result, information necessary for delivery is printed on each of the pasting slip 112 and the delivery slip 113.

Next, an ultraviolet curable medium is applied to the back surface of the upper base 131, and the shrink layer 133 is formed by irradiating and curing the ultraviolet rays. At this time, a shrinkage layer 133 may be formed by forming a printing layer on the back surface of the upper base 131 and applying a medium thereon. Further, a printed layer may be formed on the shrink layer 133. Further, for example, an ultraviolet curable release varnish is applied on the surface of the shrink layer 133, and the release agent layer 134 is formed by curing by applying ultraviolet rays. Note that silicone can be contained in the release varnish, and the peel strength from the lower base material 115 of the delivery slip 113 can be adjusted by the silicone content.

Then, the

adhesive layer

152A, 152B formed on the lower base material 115 is brought into contact with and adhered to the release agent layer 134 formed on the upper base material 131. Is adhered on the adhesive layer 120, so that a delivery slip 111 in which the sticker slip 112 and the delivery slip 113 shown in FIGS. 5A to 5C are on the same plane is produced.

The operation of the delivery slip 111 described above will be described below.

7A and 7B are diagrams showing a state in which the upper base 131 of the delivery slip 113 is peeled from the delivery slip 111 shown in FIGS. 5A to 5C.

In the delivery slip 111 shown in FIGS. 5A to 5C, the peeling base material 117 is peeled off, and is stuck to the delivery goods by the exposed adhesive layer 116. When the delivery product is delivered to the delivery destination, as shown in FIG. 7A, the delivery slip 113 is lifted with the part of the desizing part 152C corresponding to the notation part 113B as the peeling start end, toward the peeling end in the diagonal direction. It peels from the lower base material 115. In this case, the delivery form 113 is one in which the upper base 131, the shrink layer 133, and the release agent layer 134 are integrated. In this state, the delivery slip 113 is mainly peeled off from the adhesive force by the adhesive layer 152A adhered at the periphery of the peeling start end side of the peeling layer 134 on the back surface.

7B, when peeling progresses from the peeling start end of the delivery form 113, the peeling from the adhesive layer 152A is changed to the peeling from the adhesive layer 152B. At this time, since the adhesive force of the adhesive layer 152B formed with the application width b smaller than the adhesive application width a of the adhesive layer 152A is weak, the delivery sheet 113 is peeled off while being bent toward the end of peeling. There is no need to continue until complete stripping at the end of stripping. As a result, peeling with less bending is possible even at the corner portion at the peeling end portion of the peeled delivery slip 113, and curling at this portion can be reduced.

In this way, the coating width of the adhesive layer 152B on the two sides following the peeling termination portion is made smaller than the coating width of the adhesive layer 152A on the two sides on both sides from the peeling start end. By making the adhesive force by the adhesive layer 152B smaller than that of the adhesive layer 152A on the peeling start end side, it is possible to reduce the occurrence of curling at the peeling end portion when peeling the delivery slip 113 to be peeled.

Hereinafter, a configuration example of another adhesive layer of the releasable superposed sheet of the present invention will be described.

FIG. 8 is a diagram showing a configuration example of another adhesive layer of the releasable superposed sheet of the present invention. In addition, this example is a structural example of the form of the adhesive layer formed in the lower base material 115, and the adhesive layer 120 formed in the sticker slip region 150A is the same as described above.

In this example, as shown in FIG. 8, the adhesive layer is formed by forming the first adhesive layer 150 </ b> A with the same application width on the side that extends from the peeling start end to the peeling termination region excluding the desizing portion 152 </ b> C. A second adhesive layer having an adhesive strength smaller than that of the first adhesive layer is formed in this area portion, and the adhesive strength is divided into two steps from strong to weak from the peeling start end to the peeling end.

In this case, the first adhesive layer 152A is formed with, for example, a 50-percent halftone dot by an aqueous emulsion adhesive, and the second adhesive layer 153A is formed, for example, with a 30-percent halftone dot by using an aqueous emulsion adhesive. In this example, since the low-density adhesive layer 153 is also formed as described above, the low-density adhesive layer 153 and the second adhesive layer 153A can be formed at the same time.

In the case shown in FIG. 8 as well, at least the adhesive force of the adhesive layer 153A at the peeling end portion is made smaller than the adhesive force of the adhesive layer 152A, so Curling can be reduced.

FIGS. 9A to 9C are diagrams showing a configuration example of another adhesive layer of the releasable superposed sheet of the present invention.

In this example, the adhesive layer is formed in an arbitrary number of islands, but the shape is not questioned.

For example, as shown in FIG. 9A, the adhesive layer 154A is formed into a predetermined large island shape, and a dense pattern is formed from the peeling start end to the peeling end region in the peeling direction Toff excluding the desizing portion 152C. It is conceivable that the adhesive strength is made to be two steps from strong to weak from the peeling start end to the peeling end by forming them in the same large sparse pattern. The adhesive layer 154A is formed in a 50 percent dot pattern with, for example, an aqueous emulsion adhesive.

Further, as shown in FIG. 9B, the adhesive layer 154A is formed into a predetermined large island shape, and a dense pattern is formed from the peeling start end to the peeling end region in the peeling direction Toff excluding the desizing portion 152C. Is formed by an adhesive layer 154B having an arbitrary number of small sparse patterns, so that the adhesive force can be divided into two steps from strong to weak from the peeling start end to the peeling end. The

adhesive layers

154A and 154B are formed, for example, by a water-based emulsion adhesive in a 50% dot pattern.

Further, as shown in FIG. 9C, the adhesive layer is formed in the same pattern as the same island shape, and the first adhesive layer 154A is formed from the peeling start end to the peeling end region in the peeling direction Toff excluding the desizing portion 22C. By forming the region part of the peeling end with the second adhesive layer 154C having an adhesive strength smaller than that of the first adhesive layer 154A, the adhesive force can be made to have two steps from strong to weak from the peeling start end to the peeling end. Conceivable. The first adhesive layer 154A is formed with a 50 percent halftone dot, for example, with an aqueous emulsion adhesive, and the second adhesive layer 154C is formed, for example, with a 30 percent halftone dot with an aqueous emulsion adhesive.

In this way, even when the adhesive layer is formed in a predetermined number of island shapes, as shown in FIGS. 9A and 9B, at least the adhesive force by the adhesive layer at the peeling termination portion is applied to the adhesive layer of other portions. By making the total difference in the application area of the adhesive smaller than the adhesive force due to the occurrence of curling, it is possible to reduce the occurrence of curling at the peeling end portion when peeling the delivery slip 113 to be peeled. Further, as shown in FIG. 9C, at least when the delivery sheet 113 to be peeled off is peeled off by making the adhesive force of the adhesive layer 154C at least the peeling termination part smaller than the adhesive force of the adhesive layer 154A of other parts. Curling at the terminal portion can be reduced.

In this embodiment, the adhesive force is described in two steps from the peeling start end to the peeling end. However, the adhesive strength may be adjusted in more stages.

Moreover, although the case where the paste removal part 152C corresponding to the description part 113B was provided as a peeling guide of a peeling start end was shown, as long as the peeling start end is intended, not only the paste removing part 152C but also a weak adhesion part Good. Moreover, it is good also as a structure which does not use the paste removal part 152C or a weak adhesion part by making the corner | angular part front end of a peeling start end into a notch as mentioned above.

(Third embodiment)
FIG. 10A is a perspective view showing a third embodiment of the releasable superposed sheet of the present invention. 10B is a cross-sectional view of the delivery slip 211 shown in FIG. 10A, and FIG. 10C is a diagram showing the shape of the release agent layer 234 shown in FIG. 10B.

As shown in FIGS. 10A to 10C, the present embodiment is composed of a sticker slip 212 and a delivery slip 213 formed on the same plane, and the delivery slip 213 is detachable by a separation line 214.

In the delivery slip 211, an adhesive layer 216 is formed on the back surface (lower surface in the figure) of the lower base material 215 that is a common base material for the sticker slip 212 and the delivery slip 213, for example, 35Kg, and is peeled off by the adhesive layer 216. A base material 217 is removably bonded, and is configured as a label having the adhesive layer 216 and the release base material 217. The adhesive layer 216 is for attaching the delivery slip 211 to the target article with strong adhesion, and may be either an adhesive or an adhesive. In addition, a slit 218 is formed in the peeling substrate 217 so that it can be easily peeled off later.

A medium layer 219 is formed on the lower substrate 215, and a desizing portion corresponding to a notation portion that serves as a mark for starting peeling when the upper substrate 231 is peeled from the lower substrate 215 on the medium layer 219. Except for 220A, an adhesive layer 220 is formed. Here, the adhesive layer 220 is formed of an aqueous emulsion adhesive. In addition, the adhesive layer 220 is not limited to this, and other adhesives (adhesion due to solidification) or pressure-sensitive adhesives (adhesion while maintaining viscosity), such as natural latex mixed with a fine particulate filler such as starch or silica. ). In particular, when an aqueous emulsion adhesive is used, the medium layer 219 can prevent moisture from penetrating into the lower substrate 215.

The medium layer 219 is formed of general medium containing titanium oxide or the like. Medium is available for liquid ink and paste ink, both of which are added to the ink to adjust the ink concentration and gloss, but when used alone, it has waterproof properties . In that sense, the medium is not limited to medium, and any material may be used as long as it has waterproof performance such as varnish and fluorine-based coating agent. If a water-based adhesive is not used for the adhesive layer 220, the medium layer 219 is unnecessary.

The sticker slip 212 includes, for example, an entry field such as “sticker slip”, “sender”, “destination” on the surface (upper surface of the sticker substrate) 221 of high-quality paper 70 kg and a barcode 212A unique to each delivery slip. The first information layer 222 is formed by printing the transmission contents and the like. In the entry column, “sticker slip”, “sender”, “destination” and the like are written by writing or a printer (thermal, inkjet, non-impact printer). The sticker 212 is bonded to the corresponding layer (half) of the lower base material 215 on the adhesive layer 220.

The delivery slip 213 is, for example, on the surface (upper surface in the drawing) of the upper base material 231 of the high-quality paper 70Kg, as with the sticker slip 212, as a print surface or a writing surface, “sticker slip”, “sender”, “destination” The second information layer 232 is formed by printing an entry field such as “”, a barcode 213A unique to each delivery slip, a notation portion 213B that marks the start of peeling, and the like. In addition, when forming the adhesive layer 220, the case where the paste removing part 220A corresponding to the notation part 213B is provided as a peeling guide for the peeling start end is shown. It is good also as a weak adhesion part not only 220A. Moreover, it is good also as a structure which does not use the paste removal part 220A or a weak adhesive part by making the corner | angular part front end of a peeling start end into a notch. In the entry column, “sticker slip”, “sender”, “destination”, etc. are written by writing or printer (thermal, ink jet, non-impact printer).

A shrinkage layer 233 is formed on the back surface (the lower surface in the figure) of the upper substrate 231. The shrinkable layer 233 has a property of shrinking when cured to reduce curling of the middle portion of the delivery slip 213, and an upper base when an aqueous emulsion adhesive is used for the adhesive layer 222 and the low density adhesive layer 223. This is to prevent moisture permeation into the material 231.

Further, a release agent layer 234 is formed on the surface of the shrink layer 233. For the release agent layer 234, for example, a general release varnish (which may be an ultraviolet curable type) can be used as the release agent. Further, the release agent layer 234 is a pattern arrangement of a plurality of island-like release agent layers. In the arrangement, the release agent layer 234 per unit area from the release start end corresponding to the notation portion 213B to the diagonal release end region. It is formed of a single layer in which the peeling force due to the difference in the formation area is set to at least two stages from large to small.

Specifically, as shown in FIG. 10C, the notation portion 213B becomes the peeling start end, and the diagonal direction from the peeling start end becomes the peeling direction Toff. An arbitrary number of large island-shaped release agent layers 264B are formed in the region of the peeling termination, and a small island-like release agent layer 264A is patterned in the other regions from the peeling start end. The agent layer 264A and the large island release agent layer 264B have a difference in formation area per unit area. As a result, in the large island release agent layer 264B having a large area per unit area, the peel force is small and the small island release agent layer having a small area per unit area. In the case of H.264A, a larger force is required as a peeling force than the peeling in the region of the large island release agent layer 264B when peeling. The individual shapes of the small island release agent layer 264A and the large island release agent layer 264B are not questioned.

And the delivery slip 213 has a form in which the release agent layer 234 side is adhered onto the adhesive layer 220 in the corresponding region of the lower base material 215 (the remaining half of the pasting slip region).

Hereinafter, a method for producing the delivery slip 211 configured as described above will be described.

FIG. 11A and FIG. 11B are schematic diagrams for producing the delivery slip 211 shown in FIGS. 10A to 10C.

First, as shown in FIG. 11A, an adhesive layer 216 is applied to the back surface of the lower substrate 215, and a release paper 217 is adhered to form a slit 218. Then, a medium layer 219 is formed on the surface of the lower substrate 215 by applying, for example, ultraviolet curable medium and irradiating with ultraviolet rays. At this time, a printing layer may be formed on the lower substrate 215 and the medium layer 219 may be formed thereon. Further, an adhesive layer 220 is formed on the medium layer 219 by applying, for example, an aqueous emulsion adhesive.

Next, as shown in FIG. 11B, a first information layer 222 is formed by printing on a sticker slip base material 221 to be a sticker slip 212. Further, the second information layer 232 is formed by printing on the surface of the upper base material 231 that becomes the delivery slip 213. As a result, information necessary for delivery is printed on each of the pasting slip 212 and the delivery slip 213.

Next, ultraviolet curable medium is applied to the back surface of the upper substrate 231 with a thickness of 44 μm, and the shrink layer 233 is formed by irradiating with ultraviolet rays and curing. At this time, the shrinkage layer 233 may be formed by forming a printing layer on the back surface of the upper base member 231 and applying medium thereon. Further, a printed layer may be formed on the shrink layer 233. Further, for example, an ultraviolet curable release varnish is formed on the surface of the shrinkable layer 233, and the small island release agent layer 264A and the large island release agent layer 264B as shown in FIG. The release agent layer 234 is formed by coating with a pattern and curing by irradiation with ultraviolet rays. It should be noted that silicone can be included in the release varnish, and the peel strength from the lower base material 215 of the delivery slip 213 can be adjusted by the silicone content.

Then, the release agent layer 234 formed on the upper base member 231 is brought into contact with and adhered to the adhesive layer 220 formed on the lower base member 215, and the sticker base material 221 that becomes the sticker 212 is adhered. Thus, a delivery slip 211 in which the sticker slip 212 and the delivery slip 213 shown in FIGS. 10A to 10C are on the same plane is produced.

Hereinafter, the operation of the delivery slip 211 will be described.

12A and 12B are views showing a state where the upper base material 231 of the delivery slip 213 is peeled from the delivery slip 211 shown in FIGS. 10A to 10C.

In the delivery slip 211 shown in FIGS. 10A to 10C, the peeling base material 217 is peeled off, and the adhesive layer 216 that is exposed is attached to the delivery goods. When the delivery product is delivered to the delivery destination, as shown in FIG. 12A, the delivery slip 213 is lifted with the part of the desizing part 220A corresponding to the notation part 213B as the peeling start end, toward the peeling end in the diagonal direction. It peels from the lower base material 215. In this case, the delivery slip 213 is one in which the upper substrate 231, the shrink layer 233 and the release agent layer 234 are integrated. In this state, the delivery slip 213 is peeled off due to a large peeling force in relation to the small island release agent layer 264A with respect to the adhesive layer 220 on the lower substrate 215.

Then, as shown in FIG. 12B, when peeling progresses from the peeling start end of the delivery slip 213, the small island-like release agent layer 264B has a small peeling force from the peeling due to the large peeling force of the small island-like release agent layer 264A. It becomes peeling by. That is, since the peeling force by the large island-shaped release agent layer 264B is smaller than the peeling force by the small island-shaped release agent layer 264A, it is not necessary to peel the delivery slip 213 while bending it to the end of the peeling, Continue until complete stripping at the end of stripping. As a result, it is possible to perform peeling with less bending even at the corner portion at the peeling end portion of the peeled delivery slip 213, and curling at this portion can be reduced.

In this manner, the formation area per unit area of the release agent layer 264B in other regions is made small relative to at least the release agent layer 264A in the release end portion, and the release agent layer 264A in the release end portion is determined by the difference in the formation area. By reducing the peeling force due to the release agent layer 264B in the other region with respect to the peeling force due to, the occurrence of curling at the peeling end portion when peeling the delivery slip 213 to be peeled can be reduced. Moreover, by using the same release agent as the entire release agent layer 234 as a single layer, the release agent layer 234 can be formed in one step, and compared with the invention described in Patent Document 1, the production efficiency is improved in production. Can be made. Furthermore, while the invention described in Patent Document 1 uses two types of release agents, a light release portion and a heavy release portion, as the release layer, in this embodiment, only one type of release agent may be used. Therefore, the production efficiency can be improved without requiring at least two application steps of the release agent in producing the delivery slip.

Hereinafter, a configuration example of another release agent layer of the releasable superposed sheet of the present invention will be described.

FIGS. 13A, 13B, 14A, and 14B are diagrams showing a configuration example of another release agent layer of the releasable overlapping sheet of the present invention.

For example, as shown in FIG. 13A, the above-described release agent layer has the same size as each island-like release agent layer 264C, and a sparse pattern 271 is formed from the peeling start end to the peeling end region in the peeling direction Toff. It is also possible to form an area portion of the peeling end with a dense pattern 272 and make the peeling force in two steps from large to small from the peeling start end to the peeling end.

Further, as shown in FIG. 13B, the area portion of the peeling termination shown in FIG. 13A is a solid island-like release agent layer 264D, and the other island-like areas shown in FIG. 13A are used in other areas. It is also conceivable that the release agent layer 264C is made to have a peeling force in two stages from large to small from the peeling start end to the peeling end.

In this way, the difference in the formation area per unit area of the release agent layer from the peeling start end to the peeling end is set by the pattern density of the same size as shown in FIG. 13A or peeling as shown in FIG. 13B. Also by setting the end region portion to a solid shape, it is possible to reduce the occurrence of curling at the peeling end portion when peeling the delivery slip 213 to be peeled off.

Further, as shown in FIG. 14A, it is also conceivable that the release agent layer 261 is formed in a strip shape with a release agent on four sides. The release agent layer 261A that is two sides on both sides from the peeling start end is formed with the release agent application width a, and the release agent layer 261B that is two sides following the release termination region other than the two sides is the release agent application width b. And larger than the application width a of the release agent layer 261A (a <b). For example, when the size of the delivery slip 213 is 100 mm wide × 92 mm long, the application width a of the release agent layer 261A is 3 mm, and the application width b of the release agent layer 261B is 5 mm. Then, a release agent layer 262 having a release force smaller than the release force of the release agent layer 261 (261A, 261B) is formed in a region including the release termination region portion inside the release agent layer 261, thereby starting peeling. The peeling force is divided into two stages from large to small from the end to the peeling end.

In this case, as the formation of the release agent layers 261 and 262, the same release agent is used to vary the application area from the release start end to the release end region, thereby increasing the release force per formation area from 2 to 2. It can be a stage. Further, using the same release agent, the release agent layer 261 is formed in the form of 30 percent halftone dots, for example, by the same method as screen printing, and the release agent layer 262 is formed in the form of 50 percent halftone dots, for example, similar to screen printing. It is also conceivable that the peeling force in the region from the peeling start end to the peeling end is made to be two steps from large to small by changing the coating density together with the coating area. Forming the release agent layers 261 and 262 in a dot pattern can easily adjust the peeling force. In addition, the ratio of the said halftone dot is suitably set according to the kind of release agent. Further, the same can be said by forming the release agent layer 261 with a release agent having a high release force and forming the release agent layer 262 with a release agent having a low release force.

Further, as shown in FIG. 14B, it is conceivable that the release agent layer is formed in a strip shape with the same width on the four sides excluding the region at the end of the release with the release agent. A first release agent layer 261A is formed on the side extending from the peeling start end to the peeling termination region, and the peeling force is smaller than that of the first peeling agent layer 261A on the inner side of the first peeling agent layer 261A and the peeling termination region. The second release agent layer 262A is formed, and thereby, the peeling force is made at least two steps from large to small from the peeling start end to the peeling end.

In this case, the same release agent is used to form the release agent layers 261A, 262, and 262A, and the release agent layer 261A is formed in the form of a 30 percent dot by a method similar to screen printing, for example. , 262A is formed in the form of a 50% halftone dot, for example, by the same method as that for screen printing, so that the coating density is varied, and the peeling force is set in two steps from large to small. The same applies to the case where the release agent layer 261A is formed of a release agent having a high release force and the release agent layers 262 and 262A are formed of a release agent having a low release force.

14A and 14B, in the release agent layer 261 on the peeling start end side, the peeling force is larger than the peeling termination region, and the peeling force is small in the peeling termination region. For this reason, when peeling, it becomes possible to easily peel at the end, and curling at the peeling end portion when peeling the delivery slip 213 can be reduced. When the same release agent is used with the release agent layers 261 and 262 as a single layer, the release agent layers 261 and 262 can be formed in one step, and only one type of release agent may be used. In comparison, manufacturing efficiency can be improved in manufacturing.

In this embodiment, the peeling force of the release agent layer is described as an example of two steps from the peeling start end to the peeling end, but the peeling force may be adjusted in more stages.

The releasable superposed sheet of the present invention can be used for a multilayer sheet in which a plurality of base materials including an upper base material and a lower base material are bonded so as to be removable.

Claims

A releasable superposed sheet in which an upper base material and a lower base material are superposed and adhered so as to be removable,
The upper base material is formed with an ultraviolet curable shrink layer and a release agent layer sequentially on the adhesive surface with the lower base material, and the surface opposite to the adhesive surface is a printing surface or a writing surface,
The lower substrate is a releasable overlay sheet in which an adhesive layer is formed on an adhesive surface with the upper substrate.
In the releasable overlay sheet according to claim 1,
The adhesive layer is a releasable overlay sheet that is an aqueous emulsion adhesive.
A label using the releasable superposed sheet according to claim 1 or 2,
The lower base material is a label in which a pressure-sensitive adhesive layer is formed on a surface opposite to the surface to be bonded to the upper base material, and the peelable base material is removably bonded by the pressure-sensitive adhesive layer.