JP5696739B2 - Pressure sensitive adhesive tape and transfer tool - Google Patents

Description

The present invention relates to a pressure-sensitive transfer pressure-sensitive adhesive tape for fixing paper such as envelopes.

  Conventionally, pressure-sensitive adhesive products in which a base material is provided with a pressure-sensitive adhesive layer are often used for office use. Such adhesive products are roughly divided into two types. One is a pressure-sensitive adhesive product in a state in which the base material and the pressure-sensitive adhesive layer are fixed in advance, and the base material is attached to paper or the like as a support. Specific examples of such a material include an adhesive tape and a seal. The other is configured such that the substrate is provided so as to be peelable from the pressure-sensitive adhesive layer, and the two adherends can be fixed via the pressure-sensitive adhesive layer. Specific examples of such a material include a pressure-sensitive transfer pressure-sensitive adhesive tape (hereinafter referred to as a pressure-sensitive transfer tape) commercially available as so-called “tape glue”. Such a pressure-sensitive transfer tape is generally mounted on a transfer tool in a state of being wound in a roll shape, and is handled in a state where only a desired length can be suitably transferred.

  In any of the above-mentioned adhesive products, the most important factor along with the fastening force is the ability to cut off the glue when handled. As an effective technique for improving the debonding performance, a technique such as so-called pattern coating, in which an adhesive layer is intermittently applied to a base material, is widely used particularly in pressure-sensitive transfer tapes. As a further advantage of pattern coating, when air is transferred from the adhesive layer, air escapes from the gap between the adhesive layers, causing air to enter between the adhesive layer and the adherend, resulting in poor appearance. The fact that it is effectively avoided is mentioned.

  However, a disadvantage of this pattern coating is that the fastening performance is lowered because the coating area ratio and the coating amount of the pressure-sensitive adhesive are reduced as compared with the case where the pressure-sensitive adhesive is applied to the entire surface of the substrate.

  Therefore, a method has been developed to improve the paste breaking performance while applying the adhesive to the entire surface of the substrate. For example, the adhesive layer coated on the entire surface of the substrate is formed into an embossed shape having irregularities so that the adhesive layer can be easily broken off at a thin part of the adhesive layer (for example, Patent Documents). 1).

  On the other hand, the performance required for an adhesive product varies greatly depending on the application of the adhesive product. Many adhesive products have been developed so far that satisfy the performance of separating the adhesive without leaving any adhesive on the adherend and without damaging the subject (see, for example, Non-Patent Document 1).

Japanese Patent Laid-Open No. 2001-271041 (see, for example, Table 1 and Table 2)

“KOKUYO 2005 Office Surprise”, KOKUYO Co., Ltd., December 2004, p. 674

  However, as a completely different concept from the case where the adherend is not damaged as described above, for example, when the adherend is made of paper, the adhesive product or the adhesive is peeled off from the paper. When the peeling operation is performed, it may be required to reliably damage the surface layer of the paper.

  Specifically, when an important document such as a document related to personal information is sent in an envelope, the envelope is sent to the recipient person from the security point of view of protecting personal information and maintaining confidentiality. It must be sealed so that it can be clearly identified whether it has been opened by a third party. Specifically, it is an absolute condition that the envelope is fastened and sealed so that the surface of the envelope is damaged if the adhesive layer is peeled off. In addition, in binding of notebooks, diaries, publications, etc., each page is bound using an adhesive product, but it is impossible to replace or insert pages after binding. It is important from the viewpoint of preventing counterfeiting and forgery. Even in such a case, forgery or forgery can be prevented by leaving a trace that the post-binding page and the page are separated on the page, that is, paper.

  Hereinafter, in this specification, a state in which the surface of the paper is damaged is referred to as paper breakage. Further, when the pressure-sensitive adhesive layer of the pressure-sensitive adhesive product is peeled off, the surface layer of the paper adheres to the pressure-sensitive adhesive and the paper breaks in the thickness direction is referred to as a paper breaking phenomenon.

  That is, the concept of paper breakage can be newly cited as a performance for clearly leaving on paper the trace that the adhesive product has been fixed to the adherend and then peeled off by the peeling operation.

  However, although the above-mentioned conventional adhesive products may break paper with poor strength, it is not assumed to break various normally used papers. In the case where the fixing force is set from the viewpoint of reliably breaking the thick paper such as the high quality paper used for storage and the white envelope whose surface strength is higher than that of the high quality paper Therefore, the present situation is that the user cannot use the above-mentioned important documents in an envelope for sealing.

  In addition, when sealing important documents, it is sufficient to cause the adhesive product to break the paper, for example, because it is finished properly without any formation of wrinkles or bubbles at the fastening / sealing location. In addition to the fastening performance and the debonding performance, performance is also required in which it is difficult to form bubbles and wrinkles at the fastening location.

  Therefore, the present invention focuses on such problems, and provides an adhesive product that can improve the adhesive cutting performance and finish of the fastening portion while maintaining security effectively.

In order to achieve such an object, the present invention takes the following measures. That is, the pressure-sensitive transfer pressure-sensitive adhesive tape according to the present invention comprises an adhesive layer having an adhesive suitable for pattern coating used for fastening papers such as envelope seals, and the adhesive. A substrate that supports the agent, and the adhesive layer is detachably provided on the substrate, and is wound and held on a delivery mechanism component that can fix at least papers through the adhesive layer. A pressure-sensitive transfer pressure-sensitive adhesive tape for a transfer tool, wherein the thickness of the pressure-sensitive adhesive layer is set to 10 to 100 μm, and the pressure-sensitive adhesive layer is formed of the pressure-sensitive adhesive and the pressure-sensitive adhesive portion. And the adhesive layer is intermittently placed on the surface of the substrate by setting the coating area ratio occupied by the adhesive portion to 18 to 94%. The adhesive part has a plurality of adhesive blocks. A shall, the area occupied by the adhesive block set to 0.05 to 75 mm 2, the adhesive blocks, the front end portion each obliquely from the release tip portion that is initially transferred to the Paper By configuring the side to extend, the fastening width dimension in the short dimension of the base material gradually increases , and the rear end portion has a shape in which the fastening width dimension gradually decreases , causing a paper break phenomenon. It is characterized by being configured to obtain.

  Here, various adhesives such as acrylic, rubber, silicon, rosin, and urethane can be used as the adhesive. Further, the other member may be any material that can be fixed to the pressure-sensitive adhesive. Of course, it may be the same type as the paper, a paper different from the paper, or other than paper. It may be. Furthermore, it does not ask | require whether the base material and the adhesive layer are fixed. Specifically, the pressure-sensitive transfer tape is configured such that the base material can be peeled from the pressure-sensitive adhesive layer, for example, and is a component different from the papers and the other members. Can be mentioned. In addition, the seal and the adhesive tape correspond to the adhesive product according to the present invention in which the tape body as a base material is configured to be non-detachable from the adhesive layer.

In accordance with this arrangement, by an adhesive layer is intermittently placed between the paper and the paper, extra air from where the adhesive is not present when you fastening the paper together It is possible to suitably perform the attachment without including any. And because the adhesive by peeling operation becomes unrecoverable state paper is broken in the thickness direction by the paper fracture phenomenon occurs when it was stripped from paper, the feeling圧転Utsushishiki adhesive tape once Can inevitably leave traces on the paper. If such a pressure-sensitive transfer adhesive tape is used for sealing an envelope, for example, the envelope can be sealed with good appearance and accuracy, and a high security can be ensured to leave a trace of the envelope being opened. Can be sealed.

The pressure-sensitive transfer adhesive tape according to the present invention includes an adhesive layer having an adhesive suitable for pattern coating used for fixing papers such as envelope seals, and the adhesive. A substrate that supports the agent, and the adhesive layer is detachably provided on the substrate, and is wound and held on a delivery mechanism component that can fix at least papers through the adhesive layer. A pressure-sensitive transfer pressure-sensitive adhesive tape for a transfer tool, wherein the thickness of the pressure-sensitive adhesive layer is set to 10 to 100 μm, and the pressure-sensitive adhesive layer is formed of the pressure-sensitive adhesive and the pressure-sensitive adhesive portion. And the adhesive layer is intermittently placed on the surface of the substrate by setting the coating area ratio occupied by the adhesive portion to 18 to 94%. The adhesive part has a plurality of adhesive blocks Are those, first the Paper in the longitudinal direction of the area occupied by the adhesive blocks were set to 0.05 to 75 mm 2, the adhesive blocks, the base front end portion is a direction to be transferred A plurality of peeling tip portions to be transferred to the substrate, and the fastening width dimension in the short dimension of the substrate gradually increases from the peeling tip portion , and the trailing edge portion has a shape in which the fastening width dimension gradually decreases. It is characterized by being configured to cause a paper break phenomenon.

The pressure-sensitive transfer pressure-sensitive adhesive tape according to the present invention includes a pressure-sensitive adhesive layer having a pressure-sensitive adhesive suitable for pattern coating used for fixing papers such as envelope seals, and the pressure-sensitive adhesive. The adhesive layer is releasably provided on the substrate, and is wound and held on a delivery mechanism component that can fix at least papers through the adhesive layer. A pressure-sensitive transfer pressure-sensitive adhesive tape for a transfer tool, wherein the thickness of the pressure-sensitive adhesive layer is set to 10 to 100 μm, and the pressure-sensitive adhesive layer is formed between the pressure-sensitive adhesive part and the pressure-sensitive adhesive part. And the adhesive layer is intermittently placed on the surface of the substrate by setting the coating area ratio occupied by the adhesive portion to 18 to 94%. It is assumed that the adhesive part has a plurality of adhesive blocks. The area occupied by each pressure-sensitive adhesive block is set to 0.05 to 75 square millimeters, and the shape of the pressure-sensitive adhesive part is cut out along the edge in the short direction of the base material. The pressure-sensitive adhesive block formed is provided so as to be periodically arranged in the longitudinal direction of the substrate, which is the direction in which the pressure-sensitive adhesive block is transferred , and is configured to cause a paper break phenomenon. Features. Examples of the pressure-sensitive adhesive that can be applied accurately and efficiently by various methods such as screen printing and gravure printing include acrylic pressure-sensitive adhesives.

  Furthermore, it is preferable that the acrylic pressure-sensitive adhesive contains a tackifier in order to facilitate improvement and adjustment of tack, adhesive strength, holding power, and the like. The tackifier that can be blended is not particularly limited. For example, rosin derivatives such as rosin ester, gum rosin, tall oil rosin, hydrogenated rosin ester, maleated rosin, disproportionated rosin ester; terpene phenol resin, α- Terpene resins mainly composed of pinene, β-pinene, limonene, etc. (hydrogenated) petroleum resins, coumarone-indene resins, hydrogenated aromatic copolymers, styrene resins, phenol resins, xylene resins, etc. These can be used alone or in combination of two or more.

And, in the process of producing the pressure-sensitive transfer adhesive tape according to the present invention, any of the above-described various printing methods for applying the above-mentioned acrylic pressure-sensitive adhesive onto the base material, In order to more accurately and efficiently apply the pressure-sensitive adhesive to the base material while constituting the paper breakage phenomenon, the thickness dimension of the pressure-sensitive adhesive layer is set to 10 to 100 μm. Here, if the thickness dimension is 10 μm or less, it will be difficult to reliably apply to the substrate, and if the thickness dimension is 100 μm or more, the amount of adhesive applied will increase and the cost will increase. Depending on the situation, the cohesive force of the pressure-sensitive adhesive decreases, so that the pressure-sensitive adhesive causes cohesive failure during the peeling operation and the paper cannot be broken. In view of the above-described ease of application and production cost, it is desirable to set the preferred thickness dimension to 15 to 80 μm and the most preferred thickness dimension to 30 to 60 μm.

  In addition, in order to improve the debonding performance while causing the paper breaking phenomenon, the pressure-sensitive adhesive layer has a pressure-sensitive adhesive portion made of the pressure-sensitive adhesive and a gap portion interposed between the pressure-sensitive adhesive portions. And the coating area ratio occupied by the pressure-sensitive adhesive part is set to 18 to 94%. Here, when the application area ratio is 18% or less, the force for fixing the paper is weakened, and the paper breakage phenomenon cannot be caused, for example, causing interfacial peeling, and the application area ratio is 94% or more. If it exists, it will become easy to mutually contact the adhesive parts which are spaced apart through the space | gap part, and it will become what cannot obtain sufficient paste-breaking performance. And when further considering the above-mentioned fastening force and de-glue performance, it is more desirable to set the preferred application area ratio to 53 to 75%.

In order to effectively avoid the formation of wrinkles and bubbles between the paper and the pressure-sensitive adhesive layer when using the pressure-sensitive transfer type pressure-sensitive adhesive tape , the gap is formed on the substantially entire surface of the pressure-sensitive adhesive layer. It is desirable that the pressure-sensitive adhesive layer is open to the side surface over the entire area. Further, in order to make the thickness of the pressure-sensitive adhesive layer uniform and to concentrate the stress when pressing the pressure-sensitive adhesive layer against paper or other members, and to fix it appropriately, the pressure-sensitive adhesive portion is made of a plurality of pressure-sensitive adhesives. It shall have the block shall be the 0.05 to 75 mm 2 area occupied by the adhesive block. Here, when the area of the pressure-sensitive adhesive block is 0.05 square millimeters or less, it is difficult to provide the adhesive block on the substrate, and when it is 75 square millimeters or more, for example, it is used after being adjusted to a belt shape having a width dimension of 25 mm or less. For most pressure-sensitive transfer pressure-sensitive adhesive tapes , it is continuously applied in the longitudinal direction by 3 mm or more, resulting in extremely inferior adhesive performance at the time of use. As specific examples of the pressure-sensitive adhesive block that is desirably provided, various shapes such as a pressure-sensitive adhesive block having a lattice shape or a circular dot shape can be set.

  In particular, when the base material is provided so as to be peelable from the pressure-sensitive adhesive layer, the pressure-sensitive adhesive layer is firstly used in a series of operations in which the pressure-sensitive adhesive layer is interposed between paper and other members and fixed. After the first fixing operation of pressing against either the paper or the other member while being supported by the base material, the base material is peeled off from the pressure-sensitive adhesive layer and the pressure-sensitive adhesive layer The second fastening operation is performed to press against the other side, and the side that has already been fastened by the first fastening operation and the adhesive layer are pressed again by the second fastening operation. Become. Therefore, normally, the side to be fastened by the first fastening operation and the adhesive layer are strongly fastened. Therefore, if the shape of the pressure-sensitive adhesive part is a shape in which the area of the bottom surface on which the pressure-sensitive adhesive part is supported by the base material is set wider than the area of the top surface, the bottom surface that is fixed by the second fixing operation. The area is set wider, the fastening area is set wider to improve the fastening force, and consequently the fastening force of the entire pressure-sensitive adhesive layer can be improved. In addition, in order to reliably apply the adhesive layer so that the area of the bottom surface of the pressure-sensitive adhesive part is set wide, the acrylic pressure-sensitive adhesive melts easily under heating and has high fluidity. It is desirable to have characteristics as a hot-melt adhesive that can realize accurate coating with little subsequent shrinkage.

In particular, the pressure-sensitive transfer pressure-sensitive adhesive tape according to the present invention can be suitably used as a pressure-sensitive transfer pressure-sensitive adhesive tape or the like by providing the pressure-sensitive adhesive layer so as to be peelable from the substrate. Here, in order to provide the pressure-sensitive adhesive layer so as to be peelable, as a substrate, for example, a plastic film such as polyethylene (PE), polyethylene terephthalate (PET), polypropylene (PP), polyvinyl chloride (PVC), glassine paper, etc. The thing which employ | adopted paper, metal foil, etc. can be mentioned. Moreover, you may employ | adopt the base material which provided the peeling layer which consists of a silicon resin, a fluororesin, etc. in order to provide the peeling effect on the surface of what has no peeling effect. And the above- mentioned pressure-sensitive transfer type adhesive tape can be used suitably for a user by employ | adopting as a transfer tool.

According to the present invention, by disposing the pressure-sensitive adhesive layer intermittently on the base material, only the adhesive breakage performance when fixing the pressure-sensitive adhesive layer to paper or other members only at a desired location is improved. In addition, the adhesive layer is intermittently disposed between the paper and the other member, so that excess air is removed from the place where the adhesive does not exist when the paper and the other member are fixed. Fastening can be suitably performed without inclusion. And because the adhesive by peeling operation becomes unrecoverable state paper is broken in the thickness direction by the paper fracture phenomenon occurs when it was stripped from paper, the feeling圧転Utsushishiki adhesive tape stop The worn traces can inevitably be left on paper. If such a pressure-sensitive transfer adhesive tape is used for sealing an envelope, the envelope can be sealed with good appearance and accuracy, and a highly secure sealing that can reliably leave a trace of the envelope being opened. It can be performed.

And if it is a transfer tool which comprises the said pressure-sensitive transfer type adhesive tape , it can be made highly reliable for a user.

1 is an external view of a transfer tool according to an embodiment of the present invention. The top view which shows the structure of the transfer tool which concerns on the same embodiment. The figure which shows typically the structure of the pressure-sensitive transfer tape which concerns on the same embodiment. Same as above. Operation | movement explanatory drawing which concerns on the same embodiment. The top view which shows the coating pattern of the adhesive which concerns on the same embodiment. Same as above. Same as above. Same as above. The figure which shows typically the structure of the adhesive which concerns on the same embodiment. The external view which shows the adhesive product which concerns on the reference example of the embodiment. The figure which shows typically the evaluation criteria of the real peeling test which concerns on one Example of this invention.

Hereinafter, a transfer tool A including a pressure -sensitive transfer tape 1 which is a pressure- sensitive transfer adhesive tape according to an embodiment of the present invention will be described with reference to the drawings.

  As shown in FIGS. 1 and 2, the transfer tool A includes a cartridge C that houses the pressure-sensitive transfer tape 1, and a transfer tool main body A 1 that can be suitably fed out of the pressure-sensitive transfer tape 1 by mounting the cartridge C. An arm A2 capable of gripping the white envelope F is provided between the transfer tool main body A1 and the adhesive 100 to be described later when transferred to the white envelope. FIG. 1 shows a dot shape on the surface of a film 12 as a base material to be described later, for example, by sliding the white envelope F while holding the folded piece F1 of the white envelope F by the transfer tool main body A1 and the arm A2. The situation is shown in which the adhesive 100 (described later) applied to is transferred along the edge of the folded piece F1. In addition, after the adhesive 100 is pressure-transferred to the folded piece F1, the folded piece F1 is folded back through the opening end of the white envelope F, and the adhesive 100 is between the folded piece F1 and the vicinity of the opening end F2 indicated by a broken line. By further pressing in the state of being interposed between the folded piece F1 and the vicinity of the open end F2, the white envelope F is surely sealed.

Here, the pressure -sensitive transfer tape 1 which is a pressure- sensitive transfer type adhesive tape according to this embodiment attached to the transfer tool A is made of paper and other members via an adhesive layer 10 having an adhesive 100 which will be described later. When the peeling operation for peeling the folded piece F1 and the vicinity of the open end F2 from the state where the folded piece F1 and the vicinity of the open end F2 are fixed, any of the folded piece F1 that is paper or the vicinity of the open end F2 is performed. One of the surface layer portions is attached to the surface of the pressure-sensitive adhesive layer, and is configured to cause a paper breaking phenomenon in which the one is broken in the thickness direction. The white envelope F has a surface strength superior to that of the high-quality paper P (not shown) usually used for office use, so that the pressure-sensitive transfer tape 1 is of course the high-quality paper P (not shown). The paper breakage phenomenon can surely occur.

  Hereinafter, the specific structure and configuration of the pressure-sensitive transfer tape 1 will be described in detail based on the structure of the transfer tool A.

  As shown in FIG. 2, in the transfer tool A, the transfer tool main body A1 and the cartridge C have a substantially halved structure, and a part of the cartridge C is exposed so that only the cartridge C can be suitably replaced. ing. That is, the cartridge C is attached to the refill cartridge C by using the pressure-sensitive transfer tape 1 that is a consumable part and the unwinding spool SP1, the take-up spool SP2, and the transfer head H that are a part of the delivery mechanism parts as replacement parts. In such a state, it is exchanged for a new one. The transfer tool main body A1 holds non-replaceable parts that are part of the delivery mechanism parts.

  As shown in FIGS. 3 and 4, the pressure-sensitive transfer tape 1 includes a pressure-sensitive adhesive layer 10 having a pressure-sensitive adhesive 100 as an acrylic pressure-sensitive adhesive, which will be described in detail later, and a base material that supports the pressure-sensitive adhesive 10. The pressure-sensitive adhesive layer 10 is formed by intermittently disposing the pressure-sensitive adhesive 100 on the surface of the film 12. FIG. 3 shows a mode in which a “dot” pattern is formed on the surface of the film 12, which corresponds to FIGS. 1 and 6. FIG. 4 schematically shows a mode of application to a “lattice” pattern constituted by a later-described lattice block 111 corresponding to FIG. Yes. Other patterns that can be coated on the film 12 will be described later in detail (FIGS. 6, 7, 8, and 9).

  The film 12 is made of, for example, a polyethylene terephthalate (PET) film that can be peeled off from the adhesive 100 in the present embodiment. However, the film 12 is not limited to the polyethylene terephthalate, and the adhesive 100 is an acrylic adhesive. Any material that can be peeled off may be used. In addition, what has releasability with respect to acrylic adhesives includes plastic films such as polyethylene (PE), polypropylene (PP), and polyvinyl chloride (PVC), paper such as glassine paper, and metal foil. Can do. Moreover, in order to give the peeling effect to the surface of what does not have a peeling effect, what provided the peeling layer which consists of a silicon resin, a fluororesin, etc. can be mentioned.

  The pressure-sensitive adhesive layer 10 has a fastening force sufficient to cause a paper breakage phenomenon, and the paper and other members according to the present invention, that is, folds and bubbles between the folded piece F1 according to the present embodiment and the vicinity F2 of the opening. In order to effectively avoid the formation of the adhesive, the adhesive 100 is intermittently disposed on the surface of the film 12. Specifically, the pressure-sensitive adhesive 100 is pattern-coated on the surface of the film 12 so as to constitute a pressure-sensitive adhesive portion 11 made of the pressure-sensitive adhesive 100 and a gap portion 13 interposed between the pressure-sensitive adhesive portions 11. It will be. In the present embodiment, the thickness of the pressure-sensitive adhesive layer 10 applied on the surface of the film 12 is set to 30 μm. Moreover, in the said thickness dimension, the application area rate which the adhesive part 11 occupies is set to 53 to 75%. And even if the thickness dimension of an adhesive layer is set to 60 micrometers, for example, the same characteristic can be shown. In addition, as a method of performing pattern coating as shown in FIGS. 3 and 4 on the surface of the film 12, existing printing methods such as screen printing, gravure printing, offset printing, flexographic printing, and gravure printing can be used. .

  The pressure-sensitive adhesive part 11 is composed of a dot block 110, which is a circular pressure-sensitive adhesive block in FIG. 3, and a lattice block 111, which is a lattice-shaped pressure-sensitive adhesive block in FIG. Moreover, in the adhesive part 11, the surface in contact with the film 12 is set as the bottom surface 11a, and the surface in contact with the folded piece F1 of the white envelope F is set as the top surface 11b. Then, by setting the areas of the bottom surfaces 110a and 111a of the individual dot blocks 110 and the lattice block 111 to be larger than the areas of the top surfaces 110b and 111b, the area of the bottom surface 11a of the adhesive part 11 is made larger than the area of the top surface 11b. Is also widely set.

  The dot block 110 and the lattice block 111 will be described in detail. The dot block 110 shown in FIG. 3 has unevenness at the fastening portion by setting the area of the bottom surface 110a to a planar view shape of 0.05 to 9 square millimeters. The pressure-sensitive adhesive layer 10 can be pressed evenly by effectively concentrating stress during pressing while effectively avoiding the formation. Also, the lattice block 111 shown in FIG. 4 has each side constituting the bottom surface 111a and the top surface 111b in the direction in which the pressure-sensitive transfer tape 1 is actually transferred, that is, in the direction inclined with respect to the longitudinal direction of the film 12. In this configuration, the individual lattice blocks 111 are peeled off from the oblique direction and can be suitably transferred.

  As shown in FIG. 3 and FIG. 4, the gap 13 indicates a space interposed between the dot block 110 and the lattice block 111 that are each adhesive block, and as shown in FIG. The gap portion 13 is configured to open to the side surface of the pressure-sensitive adhesive layer 10 over substantially the entire surface. In other words, the substantially entire surface of the pressure-sensitive adhesive layer 10 is configured to communicate with the side surface.

  Here, in the pressure-sensitive transfer tape 1 according to the present embodiment, the fixing force of the pressure-sensitive adhesive layer 10 is improved by setting the area of the bottom surface 11a of the pressure-sensitive adhesive portion 11 to be larger than the area of the top surface 11b as described above. It is assumed that Hereinafter, the process of transferring the pressure-sensitive transfer tape 1 will be described in detail with reference to FIG. 5 (a), 5 (b) and 5 (c), the adhesive 100 is transferred along the edge of the folded piece F1 of the white envelope F using the transfer tool A, and the white envelope F is sealed. It shows a series of processes. More specifically, when the adhesive 100 is transferred by the transfer tool A, the adhesive 100 is transferred to the folded piece F1, and the top surface 110b of the dot block 110 is pressed by the transfer head H in a state of being attached to the folded piece F1. The first pressing operation is performed (FIG. 5A). The top surface 110b is folded with the folded piece F1 attached (FIG. 5 (b)), and the opening vicinity F2 located on the lower side of the drawing and the bottom surface 110a are in contact with each other. For example, the second pressing operation from the upper side of the drawing is performed. This is done (FIG. 5C). At this time, the top surface 110b that has already adhered to the folded piece F1 is more reliably adhered to the folded piece F1 by being pressed again, and the volume of the gap 13 is reduced by compressing each dot block 110. However, since the gap 13 is configured to be open to the side surface of the pressure-sensitive adhesive layer 10, the air present in the compressed gap 13 flows out from the side of the pressure-sensitive adhesive layer 10, so that the air is It is effectively avoided that bubbles or wrinkles are left between the pressure-sensitive adhesive layer 10 and the folded piece F1 or the vicinity of the opening F2. The bottom surface 110a of the dot block 110 is pressed only once by this series of operations. By setting the area of the bottom surface 110a to be larger than the area of the top surface 110b as described above, the bottom surface 110a, that is, adhesive Since the fixing force on the bottom surface 11a side of the agent part 11 is set to be large, the bottom surface 11a side and the top surface 11b side of the adhesive part 11 are fixed to the folded piece F1 and the vicinity of the opening F2 in a balanced manner. The folded piece F1 and the vicinity of the opening F2 can be securely attached. In addition, although the dot block 110 was illustrated and demonstrated in FIG. 5, of course, the lattice block 111 can also have the same effect.

  And the coating pattern which coats on the surface of the film 12 the adhesive 100 which is an acrylic adhesive which can fix the folding piece F1 and the opening vicinity F2 reliably in this way is FIG. 6, FIG. 7, FIG. 8 and FIG. In addition, about each pattern given to the same figure, the part shown in black except the frame line is made into the adhesive part 11, and the location which is white is made into the space | gap part 13. FIG. The vertical direction from the vertical direction in the figure is the longitudinal direction of the pressure-sensitive transfer tape 1, that is, the direction in which the transfer tool A transfers. In addition, the application area rate in the coating pattern shown below is 18 to 94%.

  FIG. 6 shows a “dot” pattern composed of circular dots having a diameter of 1.5 mm shown in FIGS. 1 and 3 and a circular dot having a diameter of 1 mm showing the same action as the “dot” pattern. “Dot fine”, “dot φ2” composed of circular dots having a diameter of 2 mm, and “dot φ2 + mesh” patterns covering the periphery of the circular dots having a diameter of 2 mm with fine dots having an area of 0.017 square millimeters, for example. . These patterns can realize high debonding property despite the high application area ratio.

  FIG. 7 shows a “lattice” pattern in which rhombus dots each having a different side of 1.3 mm are arranged at intervals of 0.3 mm in addition to the “lattice” pattern shown in FIG. Yes. These patterns have characteristics that each pressure-sensitive adhesive part 11 can be satisfactorily peeled from the film 12.

FIG. 8 shows a deformation pattern of a lattice pattern, “Ginkgo” made of 2 mm wide ginkgo-shaped dots, “Brick” in which rectangles having dimensions of 1 × 1.7 mm are aligned at intervals of 0.3 mm, and the dimensions of opposite sides are 1 mm. A “thin hexagon” pattern consisting of regular hexagons is shown. In this way, it is also possible to configure a pattern having high designability by modifying the lattice pattern. Note that the “brick” and “thin hexagon” patterns achieve high paste-breaking performance like the “dot” pattern described above by setting the lattice block 111 small. The “brick” and “thin hexagon” patterns are reference examples.

In FIG. 9, the area per main pressure-sensitive adhesive block constituting the pressure-sensitive adhesive portion 11 is set to 0.05 square millimeters which is the minimum in the present embodiment so as to have the characteristics of the “dot” pattern and the “lattice” pattern. The “tire” pattern in which the adhesive blocks are arranged in a shape close to a lattice, and the “large wave” pattern and the “horizontal streak” in which the area per adhesive block constituting the adhesive portion 11 is set to the maximum. The pattern is shown. Here, the dimension of the adhesive block in the direction of transfer by the transfer tool A in the “large wave” pattern and the “horizontal streak” pattern, that is, the dimension of the adhesive block in the illustrated vertical direction is set to 2 mm, and each is set at an interval of 1 mm. Ultimately, the same dimension is set to 3 mm, and the interval is set to 0.2 mm. Therefore, for example, when the width dimension of the pressure-sensitive transfer tape 1 is set to, for example, 25 mm, the area of the bottom surface of each adhesive block is 75 square millimeters (Table 4 (described later)). The width dimension of the transfer tape 1 is not limited. The “horizontal streak” pattern is a reference example.

  Subsequently, the composition of the acrylic pressure-sensitive adhesive employed as the pressure-sensitive adhesive 100 in the present embodiment will be schematically illustrated and described in FIGS. 10 (a), 10 (b), and 10 (c).

  As schematically shown in FIG. 10A, the pressure-sensitive adhesive 100 includes a diblock copolymer 101: 100 parts by weight, a triblock copolymer 102: 100 parts by weight, and a first tackifier 103: 40. It is a hot-melt pressure-sensitive adhesive in which ˜60 parts by weight and the second tackifier 104: 200 parts by weight are mixed.

  As shown in FIG. 10B, the diblock copolymer 101 includes, for example, a hard block 101a obtained by polymerizing a methacrylic acid ester having an alkyl group having 1 to 5 carbon atoms or an alkyl group having a ring structure, and carbon. Acrylic diblock copolymer prepared by polymerizing a soft block 101b obtained by polymerizing an alkyl acrylate ester having an alkyl group having 1 to 20 carbon atoms or a methacrylic acid alkyl ester having an alkyl group having 5 to 20 carbon atoms In this embodiment, LA polymer # 1114 manufactured by Kuraray Co., Ltd. is used.

  As shown in FIG. 10C, the triblock copolymer 102 is obtained by polymerizing hard blocks 102a on both ends of a soft block 102b. The hard block 102a is obtained by polymerizing an alkyl methacrylate and the soft block 102b is obtained by polymerizing an alkyl acrylate. In this embodiment, LA polymer # 2140 manufactured by Kuraray Co., Ltd. is employed.

  Examples of the first tackifier 103 and the second tackifier 104 include rosin derivatives such as rosin ester, gum rosin, tall oil rosin, hydrogenated rosin ester, maleated rosin, disproportionated rosin ester; terpene phenol resin, α -Terpene resins mainly composed of pinene, β-pinene, limonene; (hydrogenated) petroleum resins, coumarone-indene resins, hydrogenated aromatic copolymers, styrene resins, phenol resins, xylene resins, etc. These can be used alone or in combination of two or more. In the present embodiment, Alfon UP-1000 manufactured by Toa Gosei Co., Ltd., which is an acrylic tackifier, is employed as the first tackifier 103. Moreover, Arakawa Chemical Co., Ltd. superester A115 which is a rosin ester system tackifier is employ | adopted as a 2nd tackifier.

As described above, the pressure -sensitive transfer tape 1 which is a pressure- sensitive transfer adhesive tape according to this embodiment is subjected to a so-called pattern coating in which the adhesive 100 is intermittently disposed on the surface of the film 12 which is a base material. Since the pressure-sensitive adhesive layer 10 is constituted by the above, not only the adhesive cutting performance is improved when the pressure-sensitive adhesive layer 10 is transferred to the folded piece F1, but also no wrinkles or bubbles are formed on the white envelope F. Fastening and sealing can be suitably performed. And, when performing the peeling operation, the surface layer portion of the white envelope F is attached to the surface of the pressure-sensitive adhesive layer 10 so that the paper break phenomenon that breaks the white envelope F in the thickness direction can be caused. When the pressure-sensitive adhesive 100 is peeled from the paper, a paper breakage phenomenon occurs, and the white envelope F is broken in the thickness direction so that it cannot be repaired. Inevitably leaves a trace in the white envelope F that it has been fastened. That is, it is possible to seal the white envelope F with good appearance and accurately so as to perform sealing with high security. Of course, the white envelope F used in the present embodiment has a higher surface strength than the high-quality paper generally used widely for office use, and therefore is suitable for the high-quality paper P (not shown). The phenomenon can be performed.

Of course, various adhesives can be used as the pressure-sensitive adhesive 100, but as a method of coating the pressure-sensitive adhesive layer 10 on the film 12 in the production process of the pressure-sensitive transfer tape 1 which is the pressure- sensitive transfer adhesive tape , Considering the adoption of general printing methods such as printing and gravure printing, not only can the paper break phenomenon occur reliably, but also the adhesive 100 is made of acrylic to enable accurate and efficient coating. Adhesives are used.

  The specific composition of the acrylic pressure-sensitive adhesive is as follows: Kuraray LA polymer # 1114: 100 parts by weight, Kuraray LA polymer # 2140: 100 parts by weight, Toa Gosei Alfon UP-1000: 40-60 weights Part and Arakawa Chemical Co., Ltd. Superester A115: 200 parts by weight of acrylic adhesive is used, and the adhesive 100 is suitably applied onto the film 12 by the general printing method described above in the manufacturing process. It also has characteristics as a hot-melt adhesive that can be worked.

  And the thickness dimension of the adhesive layer 10 by applying the adhesive 100 by adopting the acrylic adhesive as described above is 30-60 μm, but if it is 15-80 μm, it is preferably applied The thickness dimension for breaking the white envelope F may be 10 to 100 μm.

  And the adhesive part 11 and the space | gap part 13 are formed by apply | coating the adhesive 100 intermittently, but the application area ratio which the adhesive part 11 occupies with respect to the surface area of the film 12 is set to 53 to 75%. In this case, the pressure-sensitive transfer tape 1 achieves a high paper breaking performance while realizing a paper breaking phenomenon. However, the application area ratio for securing the adhesive strength and the paper breaking performance capable of breaking the paper is 18 to 94%. Can be set to

  Further, the gap 13 is configured to open to the side surface of the pressure-sensitive adhesive layer 10 over substantially the entire surface of the pressure-sensitive adhesive layer 10, in other words, the gap 13 communicates with the side of the pressure-sensitive adhesive layer 10. Therefore, it is possible to more effectively avoid the formation of bubbles and wrinkles between the pressure-sensitive adhesive layer 10 and the white envelope F.

  As a specific configuration of the pressure-sensitive adhesive portion 11, the pressure-sensitive transfer tape 1 has a dot block 110 and a lattice block 111 as a plurality of pressure-sensitive adhesive blocks, and the occupied area on the surface of the film 12 is 25 mm. , By adopting a coating pattern set to 0.05 to 75 square millimeters, respectively, by effectively avoiding the formation of irregularities due to the pressure-sensitive adhesive layer 10 at the fastening location, the stress is suitably concentrated. The white envelope F can be securely attached.

Further, in the pressure-sensitive transfer tape 1 according to the present embodiment, the shape of the dot block 110 and the lattice block 111 which are the pressure-sensitive adhesive blocks constituting the pressure-sensitive adhesive portion 11, the area of the bottom surfaces 110 a and 111 a is the area of the top surfaces 110 b and 111 b. In the series of operations for fixing the white envelope F with the pressure-sensitive adhesive layer 10, the side that is normally fixed by the first fixing operation, that is, the folded piece F1 and the pressure-sensitive adhesive layer 10 is used. However, if the areas of the bottom surfaces 110a and 111a that are fixed by the second fixing operation are set wider, the bottom surfaces 110a and 111a and the vicinity of the opening F2 are fixed. The adhesion force can be improved, and as a result, the fixing force of the pressure -sensitive transfer tape 1 which is a pressure- sensitive transfer adhesive tape can be improved.

  The embodiment of the present invention has been described above.

Here, for example, in the above embodiment, the pressure-sensitive transfer tape 1 is used for the transfer tool A by configuring the film 12 as the base material so as to be peelable from the pressure-sensitive adhesive layer 10. On the other hand, an adhesive product in which the base material is provided so as not to be peeled off can be cited as a reference example not included in the present invention .

That is, when the base material also serves as another member, the adhesive product as a reference example can be used as, for example, the seal 2 shown in FIG. 11 (a) or the adhesive tape 3 shown in FIG. 11 (c).

  More specifically, FIG. 11A shows the seal 2 in which the adhesive layer 20 is provided on the back surface of the seal body 22 as a base material so as not to be peeled off. And the seal | sticker 2 is normally supported by the seal | sticker mount D comprised so that peeling with respect to the adhesive layer 20 is used, and when using it, the seal | sticker 2 is peeled from the seal | sticker mount D and used. And since the adhesive layer 20 is comprised by the adhesive part 21 and the space | gap part 23 which consist of several dot block 210, it becomes a thing which is hard to form a bubble and a wrinkle in a fastening location like the said embodiment. Yes. Then, when the seal 2 is peeled off from the mount D, the adhesive layer 21 disposed on the back surface of the peripheral portion 22a and the adhesive layer disposed on the back surface of the seal body 22 can be suitably separated from each other. A high-performance seal 2 can be obtained.

  Moreover, the adhesive tape 3 can be used suitably for an office use or a bookbinding use, for example. As for the adhesive tape 3, the adhesive layer 30 makes it difficult to form wrinkles and air bubbles at the fastening portion as described above, and has the ability to cut off the adhesive tape when cutting the adhesive tape main body 32 only to a desired length. It will be expensive. If this is the case, when the adhesive tape 3 is used for bookbinding, if a forgery or forgery such as replacement of pages after bookbinding is performed, the traces are reliably left by breaking the pages. Therefore, it is possible to effectively detect or prevent forgery or forgery.

  In addition, the specific configuration of each part can be variously modified without departing from the spirit of the present invention.

Subsequently, the present invention will be described more specifically with reference to examples and reference examples , but the present invention is not limited to these examples.

1: Pattern coating suitability test First, pattern coating suitability by gravure printing or screen printing was investigated using the adhesives according to Examples and Comparative Examples of the present invention. Hereinafter, examples and comparative examples will be described.
Examples 1 and 2
Among the acrylic pressure-sensitive adhesives shown in the above embodiment, LA polymer # 2140: 100 parts by weight manufactured by Kuraray Co., Ltd., Alfon UP-1000: 50 parts by weight manufactured by Toa Gosei Co., Ltd., and LA polymer # 1114: 100 parts by weight manufactured by Kuraray Co., Ltd. Part and Arakawa Chemical Co., Ltd. superester A115: 200 parts by weight of acrylic adhesive was used. And the pressure sensitive transfer tape manufactured by the pattern coating by screen printing and gravure printing was made into Example 1 and Example 2, respectively.
Comparative Example 1
A pressure-sensitive transfer tape manufactured by pattern coating by gravure printing using SIS (Nitta Gelatin Co., Ltd. H2155-01) as an adhesive was used as Comparative Example 1.
Comparative Examples 2-5
As an adhesive, an acrylic emulsion-type adhesive (Saiden Chemical Co., Ltd., Cybinol AT-21), an acrylic solvent-based adhesive (manufactured by Soken Chemical Co., Ltd., SK Dyne 701), an SIS adhesive (an SIS adhesive similar to Comparative Example 1) 35 parts by weight of an agent dissolved in 65 parts by weight of toluene, dried and formed after coating) and UV syrup (manufactured by Teikoku Mfg. Co., Ltd.)
TAC-00326) was used as Comparative Example 2, Comparative Example 3, Comparative Example 4 and Comparative Example 5, respectively.

<Test method>
Using the adhesive and printing method shown above, the coating was applied to a “dot” pattern (FIG. 6) having a coating thickness of 30 μm and 60 μm and a coating area ratio of about 63%, and the finish after coating was visually observed. It was judged. The details of gravure printing and screen printing are omitted because they use existing methods.

<Test results>
The results of the pattern coating suitability test are shown in Table 1. As shown in the table, pattern coating suitability was confirmed for Examples 1 and 2 regardless of screen printing and gravure printing in Examples using acrylic adhesives. Moreover, the pattern coating aptitude was recognized about the comparative example 1, the comparative example 2, and the comparative example 5 also about the comparative example. And about each said Example and a comparative example, even if what said test was done with the application | coating thickness of the adhesive 30 micrometer, and the thing which performed the said test by setting application | coating thickness to 60 micrometers, a difference appears in a result. The same results as in Table 1 were shown.

２：実物剥離試験
次に、上述のパターン塗工適性試験によってパターン塗工適性が認められた実施例及び比較例に係る感圧転写テープに加え、現在市販されている転写具に採用されている感圧転写テープを用いて比較例６〜１２とし、紙類に対する剥離試験、すなわち紙類に対する紙破現象の有無を調査した。以下、比較例６〜１２について説明する。
比較例６
ヘルマ社製転写具（商品名：ＨＥＲＭＡ Transfer Permanent Glue Dispenser）に装着されている感圧転写テープを用いた。なお、当該感圧転写テープは基材に対してパターン塗工がされているものである。
比較例７、８
トンボ社製転写具（商品名：テープのり ピットテープＭＳ１２）に装着されている感圧転写テープを用いた。ここで、当該感圧転写テープは基材に対して粘着剤が粘面塗布されているものであり、全面塗布された状態で供試したものを比較例７とした。また、上記パターン塗工適性試験に採用された塗工パターンにおける粘着剤の配置と略同様の部位に位置する粘着剤のみが粘着力を示すように粘着剤層を部分的に不活性化させた（以下、部分不活化と記す）ものを比較例８とした。
比較例９、１０
プラス社製転写具（商品名：テープのり テープグルーＲ 強粘着タイプ ＴＧ−２１０）に装着されている感圧転写テープを用いた。ここで、当該感圧転写テープは基材に対して粘着剤が粘面塗布されているものであり、全面塗布された状態で供試したものを比較例９とした。また、当該比較例９に部分不活化処理を施したものを比較例１０とした。
比較例１１、１２
コクヨ株式会社製転写具（商品名：プリットローラー タ−Ｍ４６０）に装着されている感圧転写テープを用いた。ここで、当該感圧転写テープは基材に対して粘着剤が粘面塗布されているものであり、全面塗布された状態で供試したものを比較例１１とした。また、当該比較例１１に部分不活化処理を施したものを比較例１２とした。

2: Actual peel test Next, in addition to the pressure-sensitive transfer tapes according to Examples and Comparative Examples in which pattern coating suitability was recognized by the above-described pattern coating suitability test, it is employed in a transfer tool currently on the market. Using pressure-sensitive transfer tapes, Comparative Examples 6 to 12 were made, and a peel test on papers, that is, the presence or absence of paper breakage on papers was investigated. Hereinafter, Comparative Examples 6 to 12 will be described.
Comparative Example 6
A pressure-sensitive transfer tape mounted on a transfer device (trade name: HERMA Transfer Permanent Glue Dispenser) manufactured by Herma was used. The pressure-sensitive transfer tape has a pattern applied to the substrate.
Comparative Examples 7 and 8
A pressure-sensitive transfer tape mounted on a transfer tool (trade name: tape glue pit tape MS12) manufactured by Dragonfly was used. Here, the pressure-sensitive transfer tape has a pressure-sensitive adhesive applied to the base material, and a test sample prepared in a state where the pressure-sensitive transfer tape was applied to the entire surface was designated as Comparative Example 7. In addition, the pressure-sensitive adhesive layer was partially inactivated so that only the pressure-sensitive adhesive located at a site substantially similar to the arrangement of the pressure-sensitive adhesive in the coating pattern adopted in the pattern coating suitability test showed adhesive force. This was referred to as Comparative Example 8 (hereinafter referred to as partial inactivation).
Comparative Examples 9 and 10
A pressure-sensitive transfer tape mounted on a transfer device (trade name: tape glue tape glue R strong adhesion type TG-210) manufactured by Plus Co. was used. Here, the pressure-sensitive transfer tape was obtained by applying a sticky adhesive to the base material, and a sample which was tested in a state where the pressure-sensitive transfer tape was applied to the entire surface was designated as Comparative Example 9. Further, Comparative Example 10 was obtained by subjecting Comparative Example 9 to partial inactivation treatment.
Comparative Examples 11 and 12
A pressure-sensitive transfer tape mounted on a transfer tool (trade name: Pret Roller-M460) manufactured by KOKUYO Co., Ltd. was used. Here, the pressure-sensitive transfer tape was obtained by applying a sticky adhesive to the base material, and a sample tested in a state where the pressure-sensitive transfer tape was applied to the entire surface was designated as Comparative Example 11. Further, Comparative Example 12 was obtained by subjecting Comparative Example 11 to partial inactivation treatment.

<Test method>
First, after transferring the examples and comparative examples described above to the stainless steel plate, the substrate was peeled off, and in this state, the comparative examples 8, 10 and 12 were subjected to partial inactivation treatment.
After partial inactivation treatment, a commercially available white envelope (trade name: White Envelope WP2270 (square No. 2 A4 size) manufactured by Okinawa Co., Ltd.) was attached to each example and comparative example, and a piece of paper cut into a strip shape was pasted. The 1 Kg roller was reciprocated once at a speed of / s, and a peeling operation was performed by pulling a piece of paper in the direction of 180 ° at a speed of 0.8 mm / s after 40 minutes. And the evaluation of the result is “paper break”: the surface layer portion of the paper piece is attached to the surface of the pressure-sensitive adhesive layer and peeled off (FIG. 12A), “interface peeling”: peeling at the interface between the pressure-sensitive adhesive layer and the paper piece ( (B)), “cohesive peeling”: Peeling in a state where the adhesive is attached to both the paper and the stainless steel plate ((c) in the same figure), “Nakiwakare” adhesive layer is attached to the paper and the stainless steel plate. It was classified into any one of peeling (Fig. (D)) in a state of adhering to both.

  <Test results>

実物剥離試験の結果を表２に示す。同表に示すように、実施例１及び実施例２並びに比較例８のみが白封筒からなる紙片を紙破し得るものであった。しかし、比較例８に部分不活化処理を施した比較例９については紙破を示さなかったため、パターン塗工を施したものの中で紙破し得る特性を示したものは実施例１及び実施例２のみであった。なお、紙破を示さなかったものについては何れも界面剥離を示した。そして、実施例１、実施例２及び比較例１、比較例２、比較例５について、粘着剤の塗布厚を３０μｍで上記試験を行ったものについても、塗布厚を６０μｍに設定して上記試験を行ったものについても、結果に差異が表れることなく表２と同じ結果を示した。

The results of the actual peel test are shown in Table 2. As shown in the table, only Example 1, Example 2, and Comparative Example 8 were capable of breaking a piece of paper consisting of a white envelope. However, since Comparative Example 9 in which Comparative Example 8 was partially inactivated did not show paper breakage, those subjected to pattern coating showed characteristics that could break paper in Examples 1 and Examples. Only 2. In all cases where no paper breakage was observed, interfacial peeling was observed. And about Example 1, Example 2, and Comparative example 1, Comparative example 2, and Comparative example 5, what applied the adhesive thickness to 30 micrometers, also set the application thickness to 60 micrometers, and said test The same results as those shown in Table 2 were also obtained without any difference in results.

3: Paper breakable coating thickness measurement test The range of the coating thickness at which the pressure-sensitive adhesive used in Examples 1 and 2 described above could cause a paper breaking phenomenon in each coating pattern shown in the above embodiment was investigated.

<Test method>
The adhesive used in Example 1 and Example 2 described above is “dots”, “dots φ2”, “dots φ2 + mesh”, “coating patterns” shown in FIGS. 6, 7, 8, and 9. Test methods similar to the above-mentioned actual peel test for coatings of various thicknesses in the "lattice", "flat lattice", "ginkgo", "brick", "thin hexagon", "tire" and "large wave" patterns A peel test was performed, and for each coating pattern, the upper limit and the lower limit of the thickness dimension indicating paper breakage (FIG. 12A) are shown in FIG. The “brick” and “thin hexagon” patterns are reference examples.

  <Test results>

表３に示すように、「タイヤ」パターンで１４．８μｍの厚み寸法で粘着剤を塗布したものにおいて紙破現象を示した一方で、「レンガ」パターンでは７９．９μｍの厚み寸法においても紙破を示した。よって、本実施例において、粘着剤層が１５〜８０μｍの範囲で塗布されたものについては白封筒を紙破し得るということが表３から示すことができる。加えて、表３に示した以外の塗工パターンについては、実施例１及び実施例２に示した粘着剤を用いれば、他の塗工パターンについて、１０〜１００μｍ程度の厚み寸法の範囲において白封筒を紙破し得る感圧転写式粘着テープを構成し得るものと考えられる。そして、白封筒を紙破するための最適な厚み寸法は、例えば表３において大部分の塗工パターンにおいて紙破を示している３０〜６０μｍの範囲であると考えることができる。

As shown in Table 3, while the “tire” pattern was coated with adhesive with a thickness of 14.8 μm, the paper breaking phenomenon was shown, while the “brick” pattern showed paper breaking even at a thickness of 79.9 μm. showed that. Therefore, it can be shown from Table 3 that the white envelope can be broken in the case where the adhesive layer is applied in the range of 15 to 80 μm in this example. In addition, for coating patterns other than those shown in Table 3, if the adhesives shown in Example 1 and Example 2 are used, other coating patterns are white in the range of thickness dimensions of about 10 to 100 μm. It is considered that a pressure-sensitive transfer type adhesive tape capable of breaking the envelope can be constituted. The optimum thickness dimension for breaking the paper in the white envelope can be considered to be, for example, in the range of 30 to 60 μm indicating the paper break in most coating patterns in Table 3.

4: Measurement of area ratio and occupied area of each coating pattern Next, “dot”, “dot thin”, “dot φ2”, “dot thin”, which are the coating patterns shown in FIG. 6, FIG. 7, FIG. 8 and FIG. One side as a deformation pattern of “Lattice” pattern to “Dot φ2 + mesh”, “Lattice”, “Flat lattice”, “Ginkgo”, “Brick”, “Fine hexagon”, “Tire”, “Large wave” and “Horizontal stripe” pattern Add a “Lattice Large” pattern (not shown) with 3 mm squares arranged at 0.1 mm intervals to determine the area ratio (%) per unit area occupied by the adhesive and the width dimension of the pressure-sensitive transfer tape. The area occupied by the main pressure-sensitive adhesive block constituting the pressure-sensitive adhesive part on the base material, that is, the occupied area when 25 mm was set, was shown in Table 4. The “brick”, “fine hexagon” and “horizontal stripe” patterns are reference examples.

表４に示した各塗工パターンは実施例１及び実施例２に係る粘着剤を用いて塗布することが可能なパターンであるが、「タイヤ」パターンの面積率から、塗布面積率が１８％以上の塗工パターンであれば、紙破し得る感圧転写式粘着テープを構成し得るということが分かった。また同じく「タイヤ」パターンから、主たる粘着剤ブロックの占有面積が０．０５平方ミリ以上で有れば確実に塗工でき且つ紙破し得るということも分かった。さらに、実施例に示した粘着剤は「格子大」（９３．７％）や「横スジ」（９３．８％）といった高い面積率を有する塗工パターンであっても隣接する粘着剤ブロック同士を独立させて塗工し得るということが分かった。そして、占有面積についてはフィルム巾を２５ｍｍに設定した場合、７５平方ミリまで面積の広い粘着剤ブロックに関しても塗布しうるということが分かった。なお、具体的なデータは示していないが「ドット細」、「格子大」、「横スジ」といった塗工パターンにおいても、表３に示した結果から十分に白封筒を紙破し得る塗工パターンであると考えることができる。

Each coating pattern shown in Table 4 is a pattern that can be applied using the adhesives according to Example 1 and Example 2. From the area ratio of the “tire” pattern, the application area ratio is 18%. It was found that a pressure-sensitive transfer pressure-sensitive adhesive tape that can break the paper can be formed with the above coating pattern. Similarly, from the “tire” pattern, it was also found that if the area occupied by the main pressure-sensitive adhesive block is 0.05 square millimeters or more, it can be reliably applied and paper can be broken. Furthermore, even if the adhesive shown in the Example is a coating pattern having a high area ratio such as “Lattice Large” (93.7%) and “Horizontal Stripe” (93.8%), adjacent adhesive blocks are adjacent to each other. It was found that it can be applied independently. And about the occupation area, when the film width was set to 25 mm, it turned out that it can apply | coat also about an adhesive block with a wide area to 75 square millimeters. Although specific data is not shown, even for coating patterns such as “dot fine”, “large lattice”, and “horizontal stripes”, a coating that can sufficiently break the white envelope from the results shown in Table 3 Think of it as a pattern.

1 ... Pressure-sensitive transfer adhesive tape (pressure-sensitive transfer tape)
10 ... Adhesive layer 100 ... Adhesive, acrylic adhesive (adhesive)
101 ... Acrylic diblock copolymer (diblock copolymer)
102 ... Acrylic triblock copolymer (triblock copolymer)
103 ... Tackifier (first tackifier)
104: Tackifier (second tackifier)
DESCRIPTION OF SYMBOLS 11 ... Adhesive part 11a ... Bottom 11b ... Top surface 110 ... Adhesive block (dot block)
111 ... Adhesive block (lattice block)
12 ... Base material (film)
13 ... Gap 2 ... Seal, Adhesive Products (Seal)
20 ... Adhesive layer 200 ... Adhesive, acrylic adhesive (adhesive)
210 ... Adhesive block (dot block)
22 ... Base material, other member (seal body)
23 ... gap 3 ... adhesive tape, adhesive product (adhesive tape)
30 ... Adhesive layer 32 ... Base material, other member (adhesive tape body)
A ... Transfer tool F ... Paper, the other member (white envelope)
P: Paper (quality paper)

Claims (11)

Having a pressure-sensitive adhesive layer having a pressure-sensitive adhesive suitable for pattern coating used for fixing papers such as envelope seals, and a base material supporting the pressure-sensitive adhesive, A pressure-sensitive transfer adhesive tape for a transfer tool, which is provided on a substrate so that the adhesive layer can be peeled off, and is wound around a delivery mechanism component capable of fixing at least papers through the adhesive layer. And
The thickness dimension of the pressure-sensitive adhesive layer is set to 10 to 100 μm,
The pressure-sensitive adhesive layer has a pressure-sensitive adhesive portion made of the pressure-sensitive adhesive and a gap portion interposed between the pressure-sensitive adhesive portions, and the coating area ratio occupied by the pressure-sensitive adhesive portion is set to 18 to 94%. The adhesive layer is formed by intermittently arranging the adhesive on the surface of the base material,
The pressure-sensitive adhesive part has a plurality of pressure-sensitive adhesive blocks, and the occupation area of each pressure-sensitive adhesive block is set to 0.05 to 75 square millimeters,
The pressure-sensitive adhesive block is arranged without contacting the pressure-sensitive adhesive blocks that are closest to each other in the longitudinal direction of the base material, which is the direction to be transferred,
The adhesive block is constructed so that each side extends in an oblique direction from the leading end portion of the front end portion which is transferred to the paper first, thereby gradually increasing the fastening width dimension in the short dimension direction of the base material. The rear end portion has a shape in which the fastening width dimension gradually decreases ,
A pressure-sensitive transfer pressure-sensitive adhesive tape characterized by being capable of causing a paper breaking phenomenon. Having a pressure-sensitive adhesive layer having a pressure-sensitive adhesive suitable for pattern coating used for fixing papers such as envelope seals, and a base material supporting the pressure-sensitive adhesive, A pressure-sensitive transfer adhesive tape for a transfer tool, which is provided on a substrate so that the adhesive layer can be peeled off, and is wound around a delivery mechanism component capable of fixing at least papers through the adhesive layer. And
The thickness dimension of the pressure-sensitive adhesive layer is set to 10 to 100 μm,
The pressure-sensitive adhesive layer has a pressure-sensitive adhesive portion made of the pressure-sensitive adhesive and a gap portion interposed between the pressure-sensitive adhesive portions, and the coating area ratio occupied by the pressure-sensitive adhesive portion is set to 18 to 94%. The adhesive layer is formed by intermittently arranging the adhesive on the surface of the base material,
The pressure-sensitive adhesive part has a plurality of pressure-sensitive adhesive blocks, and the occupation area of each pressure-sensitive adhesive block is set to 0.05 to 75 square millimeters,
The pressure-sensitive adhesive block has a plurality of peeling tip portions that are first transferred to the paper in the longitudinal direction of the base material, the front end portion being a transfer direction, and the short direction of the base material from the peeling tip portion. The fastening width dimension in steadily increases, and the rear end portion has a shape in which the fastening width dimension gradually decreases ,
A pressure-sensitive transfer pressure-sensitive adhesive tape characterized by being capable of causing a paper breaking phenomenon. Having a pressure-sensitive adhesive layer having a pressure-sensitive adhesive suitable for pattern coating used for fixing papers such as envelope seals, and a base material supporting the pressure-sensitive adhesive, A pressure-sensitive transfer adhesive tape for a transfer tool, which is provided on a substrate so that the adhesive layer can be peeled off, and is wound around a delivery mechanism component capable of fixing at least papers through the adhesive layer. And
The thickness dimension of the pressure-sensitive adhesive layer is set to 10 to 100 μm,
The pressure-sensitive adhesive layer has a pressure-sensitive adhesive portion made of the pressure-sensitive adhesive and a gap portion interposed between the pressure-sensitive adhesive portions, and the coating area ratio occupied by the pressure-sensitive adhesive portion is set to 18 to 94%. The adhesive layer is formed by intermittently arranging the adhesive on the surface of the base material,
The pressure-sensitive adhesive part has a plurality of pressure-sensitive adhesive blocks, and the occupation area of each pressure-sensitive adhesive block is set to 0.05 to 75 square millimeters,
The length of the base material in which the pressure- sensitive adhesive block is a direction in which the pressure-sensitive adhesive block is transferred to the pressure-sensitive adhesive block that is partially cut out along the edge in the short direction of the base material Are arranged periodically in the direction,
A pressure-sensitive transfer pressure-sensitive adhesive tape characterized by being capable of causing a paper breaking phenomenon. The pressure-sensitive transfer adhesive tape according to claim 1, 2, or 3, wherein the adhesive is an acrylic adhesive. The pressure-sensitive transfer pressure-sensitive adhesive tape according to claim 4, wherein the acrylic pressure-sensitive adhesive contains a tackifier. The pressure-sensitive transfer type pressure-sensitive adhesive tape according to claim 4 or 5, wherein a thickness dimension of the pressure-sensitive adhesive layer is set to 15 to 80 µm. The pressure-sensitive transfer type pressure-sensitive adhesive tape according to claim 4, 5 or 6, wherein a thickness dimension of the pressure-sensitive adhesive layer is set to 30 to 60 µm. The pressure-sensitive transfer adhesive tape according to claim 1, wherein the coating area ratio is set to 53 to 75%. The pressure-sensitive structure according to claim 1, 2, 3, 4, 5, 6, 7 or 8, wherein the gap is configured to open to a side surface of the pressure-sensitive adhesive layer over substantially the entire surface of the pressure-sensitive adhesive layer. Transfer adhesive tape. The shape of the pressure-sensitive adhesive portion is a shape in which the area of the bottom surface on which the pressure-sensitive adhesive portion is supported by the base material is set wider than the area of the top surface. , 8 or 9 pressure-sensitive transfer adhesive tape. A transfer tool comprising the pressure-sensitive transfer adhesive tape according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10.

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