JP4859819B2 - Information recording adhesive sheet - Google Patents

Description

  The present invention relates to an information recording adhesive sheet that can be used as a delivery slip or a shipping slip.

  Conventionally, as an information recording adhesive sheet used as a delivery slip, a shipping slip, etc., a three-layer type information recording adhesive sheet composed of a release paper, a base paper, and an upper paper has been used. Among them, a so-called one-part type in which the upper paper is separable into a plurality of pieces is widely used (see, for example, Patent Document 1, Patent Document 2, and Patent Document 3). This cover sheet is an information recording sheet on which information can be recorded. For example, the cover sheet is composed of a sticker slip, a delivery slip, a store receipt, and the like. The release paper is peeled off and a delivery slip is pasted on an adherend such as a cardboard box. It is used to ship kimonos. At this time, the store opening copy is peeled off from the base paper at the time of shipment, and the delivery slip is peeled off from the base paper at the delivery destination, and is used in the form that the driver obtains a receipt and takes it home.

This delivery slip is, for example, a pressure-sensitive adhesive that is pseudo-bonded between the top paper and the base paper and bonded to the tack paper, or between the top paper and the base paper, for example. This was a form in which a pseudo-adhesion using a thermoplastic resin was bonded to a tack paper.
Japanese Unexamined Patent Publication No. 06-239058 Japanese Patent Laid-Open No. 2001-353987 JP, 2004-291292, A In order to perform pseudo-adhesion by pressure as described above, a pressurizing device is required at the time of printing and processing, which has a drawback of increasing processing costs. Further, when pseudo-bonding is performed by pressure, the curl of the upper paper at the time of peeling becomes large, and when printing is performed by a laser printer, there is also a defect that the printing is transferred (Patent Document 1). In addition, when pseudo-adhesion is performed using a thermoplastic resin, there is a defect that when the peeled upper paper and the base paper are combined and heat is applied, they are re-adhered (Patent Documents 2 and 3).

  In consideration of the above fact, the present invention not only eliminates the need for a pressurizing device, but also reduces curling of the upper paper at the time of peeling, and also prevents the re-bonding of the upper paper and the base paper by heat, It is an object to provide an information recording adhesive sheet that can be used as a shipping slip or the like.

The present invention that has solved the above problems is as follows.
<Invention of Claim 1>
An information recording sheet having a first pressure-sensitive adhesive layer on at least a part of the back surface of the base paper, the first pressure-sensitive adhesive layer being covered with a release paper, and separable into a plurality of pieces on the base paper is a second pressure-sensitive adhesive layer In the pressure-sensitive adhesive sheet for information recording bonded through
At least a portion of the information recording sheet is sequentially laminated with a release layer and a resin layer made of an ultraviolet curable resin that is peelable to the release layer and pseudo-adhered to the release layer, and a second adhesive layer. ,
The UV curable resin contains a silicone compound in a range of 0.2 to 10% by mass, and the strongly compounded region having a width of 3 to 10 mm that adheres strongly by adjusting the compounding of the silicone compound and the inside or corner thereof. A pressure-sensitive adhesive sheet for recording information, characterized in that the resin layer has a weakly bonded area where the portions are bonded weakly .
(Function and effect)
A stable pseudo-adhesive part can be obtained by forming a pseudo-adhesive layer structure in which a release layer, a resin layer that is pseudo-adhered to the release layer, and an adhesive layer that adheres to the resin layer are sequentially laminated.
Further, since the pseudo-bonded resin layer is made of an ultraviolet curable resin, the resin layer can be easily and stably formed. Moreover, the use of an ultraviolet curable resin eliminates the need for a pressurizing facility such as a pressurizing device for pseudo-adhesion. Furthermore, by using the ultraviolet curable resin, re-bonding of the upper paper and the base paper by heat becomes impossible.
In addition, when printing on the upper paper, the peeling layer has poor ink setability due to the ink of the resin material, and when using an oxidation polymerization type ink, there is a risk that the drying will be slow and transfer stains may occur. However, if an ultraviolet curable resin is used as in the present invention, the resin is cured in a short time, so that transfer stains are improved and printability is improved.
On the other hand, when the evaporative drying type is used, the moisture content of the paper increases greatly due to drying, and the curl increases, but such problems do not occur if an ultraviolet curable resin is used. Note that when printing, a hot air dryer is not usually installed in a form printer, so the moisture change of the paper is small.
This ultraviolet curable resin layer contains a silicone compound in the range of 0.2 to 10% by mass. For this reason, by mix | blending a silicone compound in ultraviolet curable resin, affinity with a delamination changes and the peeling strength at the time of peeling a resin layer from a peeling layer can be changed easily.
By adjusting the blending of the silicone compound of the UV curable resin, the ease of peeling can be controlled and the pseudo-adhesive force can be easily changed. The composition of the curable resin can be adjusted. For example, when the compounding ratio of the silicone compound is increased, the pseudo adhesive force is increased, and when the compounding ratio is decreased, the pseudo adhesive force is decreased. If the compounding ratio of the silicone compound in the UV curable resin is 0.2% by mass or less, the information recording sheet / or information recording sheet piece will be peeled off during operation or transportation when used as a delivery slip or shipping slip. If the amount exceeds 10% by mass, the resin becomes brittle and may not be able to be made into an ink. Therefore, the composition of the silicone compound in the ultraviolet curable resin is from 0.2. It is desirable to contain in the range of 10%.

<Invention of Claim 2>
2. The information recording pressure-sensitive adhesive sheet according to claim 1, wherein the first pressure-sensitive adhesive layer has a ridge that does not exist at the end of the release paper .

<Invention of Claim 3>
The thickness of the resin layer is 0.5 to 20 μm, the thickness of the second pressure-sensitive adhesive layer and the thickness of the first pressure-sensitive adhesive layer are each 5 to 50 μm, and the application of the release agent used for the release layer The pressure-sensitive adhesive sheet for information recording according to claim 1 , wherein the amount is 0.1 to 5 g / m ² .

<Invention of Claim 4>
The information recording pressure-sensitive adhesive sheet according to any one of claims 1 to 3, wherein the second pressure-sensitive adhesive layer contains a hot-melt pressure-sensitive adhesive as a main component.
(Function and effect)
When an emulsion-based adhesive is used as the adhesive, the problem of curling and sheet sticking is likely to occur due to the influence of moisture. When an organic solvent-based adhesive is used, the processing equipment must be explosion-proof. However, these problems can be solved by using a hot-melt adhesive. Further, by adopting a hot-melt adhesive as the adhesive, it becomes a delivery slip sheet having a good sheet shape with little curling, sag, etc., and the printer transportability and the printing quality are improved. This is because the hot melt adhesive does not contain moisture as compared with the emulsion adhesive. In other words, the use of water-based emulsion type adhesives causes the paper to expand and contract due to the influence of moisture, resulting in not only poor dimensional stability but also curling and squeezing. If it is adopted, this is not the case, and it is possible to increase the adhesive strength in a normal use environment as compared with the aqueous emulsion adhesive. And when employ | adopting a hot-melt-type adhesive for an adhesive layer, a hot-melt coating film with uniform thickness comes to be obtained by using a roll transfer type installation. In other words, hot melt adhesives have fluidity at high temperatures, but they lose their fluidity and become fixed when cooled. For example, when the thickness is about 20 μm, it immediately cools and the coating film is fixed to a uniform thickness. Therefore, the drying process can be omitted, and productivity is improved.

As described above, according to the above-described configuration of the present invention, not only the pressurizing device is not required, but also the delivery slip paper is less sticky, the curling of the upper paper at the time of peeling is less, and the upper due to heat It has an excellent effect that it is possible to provide a delivery slip sheet that cannot be re-bonded between paper and base paper and can be printed by a laser printer.
Hereinafter, an information recording adhesive sheet according to the present invention will be described in detail with reference to the drawings, taking a delivery slip sheet as an example. Note that the present invention is not necessarily limited to the following embodiments, and it goes without saying that the configuration can be appropriately changed without departing from the scope of the claims.

A delivery slip sheet 10 according to the first embodiment of the present invention is shown in FIGS. 1 and 2, and this embodiment will be described based on these drawings.
As shown in FIGS. 1 and 2, a first adhesive layer 22 exists on the entire back surface side of the base paper 14 of the delivery slip sheet 10 according to the present embodiment, and faces the back surface of the base paper 14. A release paper 16 is disposed by being pasted by the first pressure-sensitive adhesive layer 22. A release layer 20, which is a release layer for release paper, exists on the entire surface of the release paper 16 facing the base paper 14, so that the release paper 16 can be easily peeled from the base paper 14. Along with this, the base paper 14 and the release paper 16 constitute a tack paper 18.

  Further, an upper paper 12 which is an information recording sheet capable of recording information is disposed on the front side of the base paper 14. The upper sheet 12 is composed of a sticker slip 12A, a delivery slip 12B, and a store opening card 12C, and a perforation 32 that can be slit or separated is formed between them. The vote 12B and the store opening 12C can be separated from each other.

  Further, a second adhesive layer 24 made of hot-melt adhesive or the like exists between the upper paper 12 and the base paper 14, and the back side of the sticker 12A in the upper paper 12 is the second adhesive layer. The adhesive layer 24 is directly attached to the base paper 14.

  However, since it is necessary to peel off the delivery slip 12B and the store receipt 12C from the base paper 14, a release layer 28 exists on the back surface of the delivery slip 12B and the store receipt 12C. Furthermore, in order to control the ease of peeling, the ultraviolet ray curable resin, which is a UV resin partially different in affinity with the peeling layer 28, is printed so as to face the delivery slip 12B and the store opening 12C. A resin layer 26 is provided in a portion on the second pressure-sensitive adhesive layer 24. For this reason, the delivery slip 12B and the store opening 12C are pseudo-adhered and pasted on the second pressure-sensitive adhesive layer 24 via the resin layer 26, and this portion becomes a pseudo-adhesion region.

  Although the adjustment of the pseudo adhesive force can be adjusted mainly by the blending ratio of silicone as described above, for example, a peripheral part that should not be easily peeled can be easily used by using a resin having a high blending ratio of silicone. It is conceivable to use a resin with a small silicone blending ratio for the part to be peeled.

As a result, by using the ultraviolet curable resin, the delivery slip 12B and the store opening stamp 12C are not peeled off in a normal state, and can be easily peeled off and curl can be reduced. It is conceivable that the strongly bonded portion is a strong bonding region A shown in FIG. 1 having a width of about 3 to 10 mm and a weak bonding region B in which the inside or corners are weakly bonded to facilitate peeling.

  On the other hand, when using the delivery slip sheet 10 of the present embodiment, personal information may be written on the sticker slip 12A. For example, the back surface of the sticker slip 12A is peeled off, or a pseudo-adhesion region similar to 12B and 12C. By providing this, it is possible to easily peel off the sticker slip 12A having the location where the personal information is described. That is, when the cardboard box or the like on which the sticker slip 12A is pasted is discarded, the sticker slip 12A including personal information can be easily peeled off. In this case, since the entire back surface of the upper paper 12 has a release layer, the release layer is preferably subjected to corona discharge treatment so that the upper paper 12 is firmly bonded to the base paper 14.

Next, a delivery slip sheet 10 according to the second embodiment of the present invention is shown in FIGS. 3 and 4, and this embodiment will be described based on these drawings.
The delivery slip sheet 10 according to the present embodiment is also a three-layer type consisting of a release paper 16, a base paper 14, and an upper paper 12, similar to the first embodiment, but in this embodiment, As shown in FIG. 3, the upper paper 12 is bonded to the tack paper 18 having the heel upper portion 34 as shown in FIG. 3, or an adhesive is partially applied to the back surface of the base paper 14, and the release paper 16 is attached. By sticking, it was set as the structure where the 1st adhesive layer 22 and the 2nd adhesive material layer 24 do not exist in the paper end.

  Here, the lifting refers to a state in which, for example, a slit 46 is inserted around the label portion 42 that becomes the label of the tack paper 40 shown in FIG. 4A, and thereafter, the unnecessary portion 44 other than the label portion 42 is illustrated in FIG. As shown in FIG. 4 (B), it means removing from the release paper 48 by peeling off.

  As a result, the adhesive does not stick to the transport system due to the adhesive sticking out of the delivery slip sheet 10, and the printer trouble such as jam or non-feed due to the adhesive sticking to the transport system is further generated. Less.

Next, a delivery slip sheet 10 according to a third embodiment of the present invention is shown in FIGS. 5 and 6, and this embodiment will be described based on these drawings.
The delivery slip sheet 10 according to the present embodiment is also a three-layer type including a release paper 16, a base paper 14, and an upper paper 12, which is substantially the same as the first and second embodiments. As shown in FIGS. 5 and 6, the upper paper 12 is composed of a specification 12D, a sticker 12E, a delivery certificate 12F, and a communication office postcard 12G which are separated from each other. However, the curling process is performed also in the present embodiment, and the end portions of the first adhesive layer 22 and the second adhesive material layer 24 are located inside the end portions of the release paper 16 and the upper paper 12.

Next, a manufacturing method in the case where tack paper is used as the delivery slip sheet 10 according to the present embodiment will be described.
First, for example, the home delivery tack paper 18 is pulled up to a size that is about 1.5 mm smaller than all four sides of the A4 size, and then a hot melt adhesive is applied to the home delivery tack paper 18 and the upper paper 12 is pasted. Match. That is, a release layer 28 and a resin layer 26 made of an ultraviolet curable resin are provided on the back surface of the upper paper 12 and are pseudo-bonded on the base paper 14.

  However, the release layer 28, the resin layer 26, and the second pressure-sensitive adhesive layer 24 may not be formed on the portion to be written or stamped on the back side of the communication office postcard 12G. In addition, the corners and the central part at the beginning of peeling of the delivery certificate 12F in the resin layer 26 are made of UV curable resin, which is UV resin having low affinity for the peeling layer 28, so that it is easy to peel off although not shown. . That is, by making it easy to peel off the central portion of the delivery card 12F, curling when peeled off can be reduced also in this embodiment.

Next, a manufacturing method when no tack paper is used as the delivery slip sheet 10 according to the present embodiment will be described.
First, a hot melt adhesive is applied in a pattern on the back surface of the base paper 14, the cut release paper 16 is bonded, the hot melt adhesive is applied in a pattern on the surface of the bonded base paper 14, and a pseudo-adhesive process is performed. Adhesive processing is performed twice by cutting and pasting the upper paper 12 that has been applied.

  In other words, by placing the hot melt adhesive application part about 1 to 2 mm inward from the exact size of the cut paper, the adhesive does not stick out, and thus a product that does not adhere to the printer is manufactured. be able to.

Although not shown, it is also possible to manufacture the fourth embodiment in which the hoisting process is not performed as in the first embodiment, instead of the third embodiment.
In these cases, the case where almost the entire surface is composed of a three-layer sheet is shown, but a three-layer sheet structure may be partially used. It is preferable that the portion other than the three-layer structure has a two-layer or one-layer structure, and the surface in that case is not peeled off so that there is no obstacle to information recording.

The material and thickness of the upper paper 12 are not particularly limited. Examples of the material of the upper paper 12 include kraft paper, fine paper, glassine paper, parchment paper, rayon paper, coated paper, synthetic paper, and resin film. For example, a heat-sensitive color developing layer, an ink-jet ink absorbing layer, a thermal transfer layer, application of electric conductivity, and the like are performed by a printer to be used. In addition, when used as a delivery slip, the upper paper is preferably made of a material in which a wet paper strength enhancer is added or added in consideration of the possibility of being hit by rain. Various recycled papers and forest certified papers may be used from the viewpoint of environmental protection. However, it is preferable to avoid paper or the like laminated with a resin film from the viewpoint of resource reuse. The thickness of the information recording upper paper 12 is usually 50 to 300 μm.
The material, thickness, etc. of the base paper 14 are not particularly limited as with the upper paper. It is also possible to print fixed information or the like on the surface of the base paper.

  Although a known resin can be used for the resin layer 26, it is preferable to use an ultraviolet curable resin in the present invention. Examples of the ultraviolet curable resin include unsaturated polyester resins, acrylate resins, and methacrylate resins. Epoxy acrylates, urethane acrylates, polyester acrylates, and the like are particularly preferable. In addition, known initiators such as benzophenone-based, acetophenone-based, and thioxanthone-based initiators that are contained in the ultraviolet curable resin and initiate photopolymerization can be used. The thickness of the resin layer using the ultraviolet curable resin is not particularly limited, but is usually 0.5 to 20 μm, preferably 1 to 10 μm. If the thickness is less than 0.5 μm, the paste killing effect is reduced, and if it exceeds 20 μm, curing becomes difficult. As a method for applying the ultraviolet curable resin, known methods such as bar coating, knife coating, roll coating, blade coating, die coating, gravure coating, offset printing, letterpress printing, gravure printing, stencil printing Various printing methods such as printing can be used.

  As the second pressure-sensitive adhesive layer 24, various known pressure-sensitive adhesives can be used, but in the present invention, it is preferable to use a hot-melt pressure-sensitive adhesive. A hot-melt adhesive is used, and can be appropriately selected from known materials such as rubber, EVA, olefin, polyester, polyamide, and urethane. According to the hot-melt component, the drying process can be omitted, and the productivity is improved. Although the thickness of the 2nd adhesive layer 24 is not specifically limited, Usually, 5-50 micrometers, Preferably it is 10-30 micrometers. If it is less than 5 μm, the adhesive strength is small, and there is a high possibility that it will not adhere with sufficient strength. If it exceeds 50 μm, the adhesive strength will not increase, and the adhesive will not stick out due to a large amount of application or uniform transfer, etc. This is because a problem occurs. As a method for applying this pressure-sensitive adhesive, various known printing methods such as a bar coating method, knife coating method, roll coating method, blade coating method, die coating method, gravure coating method, relief printing, gravure printing, stencil printing, etc. Etc. can be used.

  The first pressure-sensitive adhesive layer 22 may be a natural rubber-based, acrylic-based, silicone-based, polyurethane-based, polyester-based, or hot-melt pressure-sensitive adhesive used for known label applications. The agent layer 22 is a layer that enables the delivery slip 10 to be affixed to a package, and the adhesive force of the first adhesive layer 22 to an adherend such as a package needs to be greater than that of the resin layer 26 and the release layer 28. Although the thickness of the 1st adhesive layer 22 is also not specifically limited, Usually, 5-50 micrometers, Preferably it is 10-30 micrometers. If it is less than 5 μm, the adhesive strength is small, and there is a high possibility that it will not adhere with sufficient strength. If it exceeds 50 μm, the adhesive strength will not increase, and the adhesive will not stick out due to a large amount of application or uniform transfer will not be possible. This is because a problem occurs. As a method for applying this pressure-sensitive adhesive, various known printing methods such as a bar coating method, knife coating method, roll coating method, blade coating method, die coating method, gravure coating method, relief printing, gravure printing, stencil printing, etc. Etc. can be used.

  When using a hot-melt adhesive, it may be possible to add tackifier (tackifier), oil, etc. in addition to the base polymer.

The release agent used for the release layers 20 and 28 is not particularly limited as long as it exhibits release properties. As the release agent, known release agents such as silicone, long-chain alkyl polymer, polyolefin, alkyd resin, fluorine compound and the like can be used. In particular, a release agent mainly composed of cationic polymerization ultraviolet curable silicone is preferable. Such a release agent is desirable in that it does not suffer from curing inhibition by oxygen in the atmosphere and does not need to be cured in a nitrogen-substituted atmosphere. The cationic polymerization ultraviolet curable silicone is a mixture containing a known polyorganosiloxane having an epoxy functional group in the molecule and a known onium salt polymerization initiator.
The coating amount of the release agent, is about 0.1-5 g / m ^2. If it is less than 0.1 g / m ² , peeling of the resin layer is insufficient, and if it exceeds 5 g / m ² , the improvement of the peeling effect is not observed and only the cost is increased. The release agent can be applied by coating with various conventional coating machines such as an air knife coater, a blade coater, a rod metering coater, a curtain coater, and a roll coater. In particular, printing coating by various printing such as offset printing, gravure printing, letterpress printing, stencil printing, etc., in which it is easy to appropriately adjust the coating amount and coating distribution of the release agent by pattern printing or solid printing, is suitable.

  Prior to the application of the release agent, it is preferable to apply a sealing agent. If the sealing agent is applied, it is possible to prevent the release agent from penetrating into the upper paper, thereby improving the peelability. Examples of the sealing agent include inorganic pigments and organic pigments used for coated paper such as coated paper, water-soluble polymers and latex for bonding them, and auxiliary agents such as a lubricant added as necessary. , An oxidation polymerization type offset printing ink with various oils and fats, a heat drying type printing ink with various oils and fats, a UV curable ink, and the like can be used.

It is a top view of the delivery slip paper which concerns on the 1st Embodiment of this invention. FIG. 2 is a sectional view taken along line 2-2 in FIG. 1. It is sectional drawing corresponding to sectional drawing of FIG. 2 of the delivery slip paper based on the 2nd Embodiment of this invention. FIG. 4A is a plan view of the tack paper, and FIG. 4B is a plan view of the tack paper in a state where unnecessary portions are peeled off. It is a top view of the delivery slip paper which concerns on the 3rd Embodiment of this invention. FIG. 6 is a cross-sectional view taken along line 6-6 in FIG.

DESCRIPTION OF SYMBOLS 10 Delivery slip paper 12 Upper paper 12A Sticking slip 12B Delivery slip 12C Store opening 14 Base paper 16 Release paper 22 1st adhesive layer 24 2nd adhesive layer 26 Resin layer 28 Release layer

Claims (4)

An information recording sheet having a first pressure-sensitive adhesive layer on at least a part of the back surface of the base paper, the first pressure-sensitive adhesive layer being covered with a release paper, and separable into a plurality of pieces on the base paper is a second pressure-sensitive adhesive layer In the pressure-sensitive adhesive sheet for information recording bonded through
At least a portion of the information recording sheet is sequentially laminated with a release layer and a resin layer made of an ultraviolet curable resin that is peelable to the release layer and pseudo-adhered to the release layer, and a second adhesive layer. ,
The UV curable resin contains a silicone compound in a range of 0.2 to 10% by mass, and the strongly compounded region having a width of 3 to 10 mm that adheres strongly by adjusting the compounding of the silicone compound and the inside or corner thereof. A pressure-sensitive adhesive sheet for recording information, characterized in that the resin layer has a weakly bonded area where the portions are bonded weakly . 2. The information recording pressure-sensitive adhesive sheet according to claim 1, wherein the first pressure-sensitive adhesive layer has a ridge that does not exist at the end of the release paper . The thickness of the resin layer is 0.5 to 20 μm, the thickness of the second pressure-sensitive adhesive layer and the thickness of the first pressure-sensitive adhesive layer are each 5 to 50 μm, and the application of the release agent used for the release layer The pressure-sensitive adhesive sheet for information recording according to claim 1 , wherein the amount is 0.1 to 5 g / m ² . The information recording pressure-sensitive adhesive sheet according to any one of claims 1 to 3, wherein the second pressure-sensitive adhesive layer contains a hot-melt pressure-sensitive adhesive as a main component.

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