WO2015064147A1

WO2015064147A1 - Coating film transfer tool

Info

Publication number: WO2015064147A1
Application number: PCT/JP2014/066784
Authority: WO
Inventors: 慶一郎峰岸
Original assignee: フジコピアン株式会社
Priority date: 2013-10-30
Filing date: 2014-06-25
Publication date: 2015-05-07
Also published as: JPWO2015064147A1; JP6330197B2

Abstract

Provided is a coating film transfer tool for transferring an adherence-use adhesive coating film to a transfer surface. The coating film transfer tool includes the following: a pay-out part for paying out a glue transfer tape in which the adhesive coating film is provided on a substrate tape; a rotatable transfer roller that has an outer circumferential surface for pressing the glue transfer tape onto the transfer surface in order to transfer the adhesive coating film onto the transfer surface; and a take-up part for taking up the substrate tape after transfer. At one part of the outer circumferential surface of the transfer roller, provided is a recess the width of which is greater than that of the glue transfer tape. The recess is configured so that, in a state where the recess is facing the transfer surface, if the transfer roller is pressed against the transfer surface, the glue transfer tape does not come into contact with the transfer surface.

Description

Film transfer tool

The present invention relates to a coating film transfer tool for transferring an adhesive pressure-sensitive adhesive coating film onto a transfer surface.

Conventionally, paste for transferring adhesive coating film for transfer from transfer tape along with coating film transfer tool for correction tape (hereinafter referred to as corrected coating film transfer tool) for transferring correction coating film for correcting errors from transfer tape A coating film transfer tool for transfer tape (hereinafter referred to as an adhesive film transfer tool) is used. In this specification, a transfer tape provided with an adhesive coating film for adhesion is expressed as a glue transfer tape for convenience, but the adhesive coating film of the present invention can be transferred with a coating film transfer tool. As long as it is a pressure-sensitive adhesive coating film for adhesion, it is not limited to glue.

JP 2009-297909 A

For example, Patent Document 1 discloses a glue coating film transfer tool. Since the corrected coating film transfer tool is used for correcting an error, there is a case where only one character is corrected, and the amount used per time is small. For this reason, since the consumer purchases the corrected coating film transfer tool, the corrected coating film transfer tool is generally used for a long period of time and does not end easily. On the other hand, the glue coating film transfer tool is used to stick an object to be pasted such as a photograph or a newspaper cutout to a report sheet or a notebook. For example, when pasting a photograph of L size (8.9 cm × 12.7 cm), if glue is applied to all four sides of the photograph as shown in FIG. 3, it is necessary to transfer the glue over a length of about 43 cm. is there. For this reason, for example, if an adhesive plate transfer tool having a length of 6 m applied is used to paste an L-size size photo, it is 43 cm × 14 = 602 cm, so 14 photos I just finished using the glue transfer tape. Thus, the adhesive coating film of the glue coating film transfer tool may disappear immediately after the consumer purchases the coating film transfer tool. Therefore, the glue coating film transfer tool is more expensive for consumers than the modified coating film transfer tool. Therefore, the glue coating film transfer tool is not accepted by many consumers as compared with the modified coating film transfer tool, and the market scale is small.

Incidentally, as shown in FIG. 4, by transferring the pressure-sensitive adhesive coating film in a perforated pattern, the amount of the pressure-sensitive adhesive coating film used can be reduced, and the coating film transfer tool can be made long lasting. In particular, as long as the photo is pasted on a notebook, it is not necessary to continuously transfer the adhesive coating to the entire outer periphery of the photo, and it is sufficient to bond the photo just by transferring the perforation to the entire outer periphery. Adhesive strength can be obtained. However, in order to transfer such a perforated pressure-sensitive adhesive coating film, it is necessary for the user to repeatedly perform a fine transfer operation, which takes time and is very troublesome. In addition, if the glue transfer tape is stored in a long length, more objects can be attached, but if a long glue transfer tape is stored, the film transfer tool becomes larger and difficult to hold by hand. There is also the problem of high prices.

An object of the present invention is to provide a glue coating film transfer tool that can easily transfer perforated adhesive film for adhesion and reduce the amount of the adhesive film used.

The coating film transfer tool according to the A1 viewpoint is a coating film transfer tool for transferring an adhesive pressure-sensitive adhesive coating film to a transfer surface, and a paste transfer tape provided with the pressure-sensitive adhesive coating film on a base tape. A rotatable transfer roller having an outer peripheral surface that presses the adhesive transfer tape against the transfer surface to transfer the adhesive coating film onto the transfer surface; and the base after transfer And a winding unit for winding the material tape. A recess having a width wider than the width of the glue transfer tape is provided in a part of the outer peripheral surface of the transfer roller. The concave portion is configured such that the glue transfer tape does not come into contact with the transferred surface when the transfer roller is pressed against the transferred surface with the concave portion facing the transferred surface.

The coating film transfer tool according to the A2 viewpoint is the coating film transfer tool according to the A1 viewpoint, and the concave portions having the same shape are provided on the outer peripheral surface of the transfer roller at equal angular intervals.

The coating film transfer tool according to the A3 viewpoint is the coating film transfer tool according to the A1 or A2 viewpoint, and a difference between the width of the concave portion and the width of the glue transfer tape is 0.3 mm or more and 1.3 mm or less.

The coating film transfer tool according to the A4 aspect is the coating film transfer tool according to any of the A1 to A3 viewpoints, and further includes a housing that at least partially houses the feeding portion, the transfer roller, and the winding portion. Prepare.

The coating film transfer tool according to the A5 viewpoint is the coating film transfer tool according to the A4 viewpoint, and the transfer roller is rotatably held by the casing.

The coating film transfer tool according to the A6 viewpoint is a coating film transfer tool according to the A4 viewpoint, and further includes a transfer head held in the housing. The transfer roller is rotatably held by the transfer head.

The coating film transfer tool according to the B1 viewpoint is a coating film transfer tool for transferring the adhesive coating film of the paste transfer tape provided with the adhesive coating film for adhesion to the base tape to the transfer surface, A feeding section for feeding out the paste transfer tape, a transfer pressing section for pressing the glue transfer tape against the surface to be transferred and transferring the adhesive coating film onto the surface to be transferred, and the base tape after transfer. A winding unit for winding is housed in a housing, and the transfer pressing unit is a transfer roller rotatably provided on the housing or a transfer head held by the housing, and is formed on an outer peripheral surface of the transfer roller. When a recess having a width wider than the width of the glue transfer tape is provided in part, and the recess of the transfer roller faces the surface to be transferred, pressing the transfer roller against the surface to be transferred causes the glue transfer tape to be covered. It is a coating film transfer tool characterized by not contacting a transfer surface.

The coating film transfer tool according to the B2 viewpoint is the coating film transfer tool according to the B1 viewpoint, wherein the concave portions having the same shape are provided at equal angular intervals on the outer peripheral surface of the transfer roller. .

The coating film transfer tool according to the B3 viewpoint is the coating film transfer tool according to the B1 viewpoint or the B2 viewpoint, and a difference between the width of the recess and the width of the glue transfer tape is 0.3 mm or more and 1.3 mm or less. It is characterized by.

According to the coating film transfer tool from the A1 viewpoint to the A6 viewpoint, the adhesive coating film for adhesion can be easily transferred in a perforated manner, and the amount of the adhesive coating film used can be reduced.

A transfer roller is used for the adhesive film transfer tool from the B1 viewpoint to the B3 viewpoint, and the adhesive roller coating film is applied to the adhesive transfer tape from the adhesive transfer tape by rotating the transfer roller as the adhesive transfer tape runs. It is transferred onto the transfer surface of the paste. If there is a recess on a part of the outer peripheral surface of such a transfer roller, and the adhesive coating film does not contact the transfer surface at the position where the recess faces the transfer surface, the adhesive coating film is transferred to the recess. It is not transferred to the surface. Further, while the adhesive coating film is not transferred, the glue transfer tape does not run even if the coating film transfer tool moves and the transfer roller rotates.

Therefore, when the transfer roller having a recess on a part of the outer peripheral surface of the present invention is used as a glue coating film transfer tool, the adhesive coating film is transferred in a perforated manner on the transfer surface and the coating film transfer tool moves. The length that the glue transfer tape travels is shorter than the length that has been achieved. As a result, the coating film transfer tool having the recesses on the outer peripheral surface of the transfer roller can apply more objects to be attached as compared with the conventional coating film transfer tool having no recess on the outer diameter of the transfer roller. .

It is a figure which shows the coating-film transfer tool A which has the transfer roller 7 of 1st Embodiment of this invention. It is a figure which shows the coating-film transfer tool B which has the transfer roller 7B of 2nd Embodiment of this invention. It is a figure which shows the state glued on all four sides of the photograph of L plate size (8.9cm x 12.7cm). It is a figure which shows the state pasted on the four sides of the photograph of L plate size (8.9cm x 12.7cm) in the shape of a perforation. It is a figure which shows the state which transferred the adhesive coating film using the coating-film transfer tool which concerns on the Example of this invention.

FIG. 1 shows a coating film transfer tool A having a transfer roller 7 according to the first embodiment of the present invention. FIG. 1A is a front view of the coating film transfer tool A with the cover removed, and FIG. 1B is a bottom view of the coating film transfer tool A with the cover set. FIG. 1C is a view showing the transfer roller 7 alone, and FIG. 1D is a cross-sectional view taken along line MM in FIG. 1C.

As shown in FIG. 1, the coating film transfer tool A is a casing comprising a case 1 and a cover 2, a feeding core 3 in which a paste transfer tape T in which an adhesive coating film for adhesion is applied to a base tape T1 is wound, A transfer roller 7 for transferring the adhesive coating film onto a transfer surface such as paper, a transfer head 4 for rotatably holding the transfer roller 7, and a winding for winding the substrate tape T1 after transferring the adhesive coating film The take-up core 5 and the O-ring 6 that transmits the rotation of the feeding core 3 to the take-up core 5 are configured. However, the coating film transfer tool according to the present invention is not limited to this, and has a feeding portion for the glue transfer tape T and a winding portion for winding the remaining base tape to which the adhesive coating film has been transferred. Any form can be used as long as the adhesive coating film is transferred from the glue transfer tape by the transfer roller.

In the coating film transfer tool A, the transfer roller 7 is rotatably held by the transfer head 4 held by the case 1 and the cover 2, but the case 1 and the cover 2 are directly transferred without passing through the transfer head 4. It is good also as a form which hold | maintains the roller 7 rotatably.

The transfer roller 7 is a substantially cylindrical member, and the adhesive transfer tape T is pressed against the surface to be transferred by a surface (outer peripheral surface) corresponding to the side surface of the column, and the adhesive coating film is transferred to the surface to be transferred. As materials for the transfer roller 7, plastics such as polypropylene, polyethylene, polyacetal, and ABS can be used, but natural rubber, synthetic rubber, or these can be used as long as they can withstand the pressing force during coating film transfer. It is preferable to use rubber which is a mixture containing. In the transfer roller 7, it is more preferable that the central shaft portion is made of plastic and only the outer peripheral portion is made of rubber. By manufacturing the central shaft of the transfer roller 7 from a plastic material, it is possible to easily impart strength sufficient to withstand the pressing force during coating film transfer. Further, by manufacturing the outer peripheral portion of the transfer roller 7 with rubber, the coefficient of friction between the transfer roller 7 and the transfer surface increases, and when the transfer roller 7 moves while the transfer roller 7 is pressed against the transfer surface, The transfer roller 7 rotates on the transfer surface without sliding with respect to the transfer surface.

Examples of the rubber material of the transfer roller 7 include natural rubber, silicone rubber, ethylene propylene rubber, acrylonitrile butadiene rubber, styrene butadiene rubber, chloroprene rubber, acrylic rubber, fluorine rubber, polyurethane rubber, and thermoplastic elastomer.

As shown in FIGS. 1C and 1D, a recess 71 having a width slightly wider than the width of the glue transfer tape T is provided in the center portion in the width direction of the outer peripheral surface of the transfer roller 7. . The width of the recess 71 is preferably larger than the width of the glue transfer tape T in the range of 0.3 mm to 1.3 mm, and more preferably larger in the range of 0.3 mm to 0.8 mm. Since the width of the recess 71 is larger than the width of the glue transfer tape T, the glue transfer tape T passes through the recess 71 at a location where the recess 71 is present on the outer peripheral surface of the transfer roller 7. As a result, the movement of the glue transfer tape T in the width direction is restricted by the width dimension of the recess 71, and the glue transfer tape T becomes difficult to meander on the transfer roller 7. When the difference between the width of the recess 71 and the width of the glue transfer tape T is smaller than 0.3 mm, it is difficult to attach the glue transfer tape T to the recess 71. When the difference between the width of the recess 71 and the width of the glue transfer tape T exceeds 1.3 mm, the effect of preventing the meandering of the glue transfer tape T is reduced. The recess 71 is provided not on the entire circumference of the outer peripheral surface but on a part of the outer peripheral surface. One or a plurality of the recesses 71 may be provided, but when a plurality of recesses 71 are provided, it is preferable to provide the same size with equal angular intervals along the rotation direction. When recesses of the same size are provided at equiangular intervals, if the adhesive coating film is transferred using a coating film transfer tool, the same length of the adhesive coating film is transferred in a perforated manner at regular intervals. Become so. The shape of the recess 71 is such that even if the transfer roller 7 is pressed against the transfer surface in a state where the recess 71 faces the transfer surface, the adhesive coating film on the glue transfer tape T in the recess 71 is in contact with the transfer surface. It is not touching. In the coating film transfer tool A, as shown in FIG.1 (d), the cross-sectional shape of the recessed part 71 is the circular arc shape which protrudes to an outer peripheral side.

The recess 71 does not reach both side portions 72 of the transfer roller 7. In other words, the both side portions 72 define the boundary in the width direction of the recess 71, and the both side portions 72 are flush with the other surfaces of the outer peripheral surface of the transfer roller 7. As a result, when the coating film transfer tool A is moved in a state where the transfer roller 7 of the coating film transfer tool A is pressed against the transfer target surface, the transfer roller 7 is always in contact with the transfer target surface at both side portions 72. For this reason, when the coating film transfer tool A moves on the transfer surface while the transfer roller 7 is pressed against the transfer surface, the transfer roller 7 rotates almost without sliding with respect to the transfer surface over the entire circumference. . When the transfer roller 7 is pressed against the transfer surface at a position where the recess 71 is not provided along the circumferential direction of the transfer roller 7, the glue transfer tape T comes into contact with the transfer surface. When the coating film transfer tool A moves on the transfer surface in this state, the adhesive coating film is transferred from the glue transfer tape T to the transfer surface, and the glue transfer tape T is fed out as the transfer roller 7 rotates. It is paid out from the core 3. On the other hand, at the position where the concave portion 71 of the transfer roller 7 faces the transfer surface, the glue transfer tape T does not contact the transfer surface even if the transfer roller 7 is pressed against the transfer surface. Even if the coating film transfer tool A moves on the transfer surface in this state, the adhesive coating film is not transferred from the glue transfer tape T to the transfer surface, and the glue transfer tape T is rotated even if the transfer roller 7 rotates. The sliding roller 7 does not slide out from the feeding core 3.

As described above, when the coating film transfer tool A moves on the transfer surface while the transfer roller 7 of the coating film transfer tool A is pressed against the transfer surface, the transfer roller 7 moves along with the movement of the coating film transfer tool A. In contrast to the continuous rotation, the glue transfer tape is intermittently fed from the feeding core 3 and the adhesive coating film on the glue transfer tape is intermittently transferred to the transfer surface. As a result, when the coating film transfer tool A moves on the transfer surface in a state where the transfer roller 7 of the coating film transfer tool A is pressed against the transfer surface, the adhesive coating film discontinuously onto the transfer surface ( It is transferred (in a so-called perforated pattern). Further, since the glue transfer tape T sometimes slides intermittently with respect to the transfer roller 7, the glue transfer tape can be moved with respect to the distance traveled by the coating film transfer tool A to transfer the adhesive coating film. The length by which T is fed from the feeding core 3 is shortened. For this reason, compared with the conventional coating film transfer tool that performs continuous coating film transfer, the coating film transfer tool A that transfers the coating film in a perforated pattern transfers from the same length of glue transfer tape to the transfer surface. The length of the pressure-sensitive adhesive coating film can be increased. As a result, in the coating film transfer tool A, the length of the paste transfer tape to be accommodated is not increased (therefore, the coating film transfer tool A is not enlarged) and the user does not have to perform any special work. The amount of the pressure-sensitive adhesive coating film used can be reduced as compared with the coating film transfer tool. Therefore, it is possible to easily paste a number of objects to be pasted such as a photograph or a newspaper clipping on a report sheet or a notebook.

In the coating film transfer tool A, since the adhesive coating film is transferred in a perforated form, when the same adhesive coating film is used, a conventional coating film transfer tool for transferring the adhesive coating film in a continuous state; In comparison, the adhesive force per unit area may be reduced. However, depending on the application of adhesion, the adhesive force is sufficient even for perforated transfer, and the coating film transfer tool A can be used for a wide range of applications. In addition, when a paste transfer tape using a so-called strong adhesive pressure-sensitive adhesive coating film having a strong adhesive force is used, even a pressure-sensitive adhesive coating film transferred in a perforated form can exert a strong adhesive force. As described above, the coating film transfer tool A can also provide a sufficient adhesive force for attaching an object to be attached such as a photograph or a newspaper cut-out to a report sheet or notebook.

In the paste transfer tape of the present invention, an organic polymer film support and a paper support are preferably used as the support. As the organic polymer film support, various film supports such as a polyester film, a polycarbonate film, a polymethyl methacrylate film, a polypropylene film, and a polyimide film can be used, but a polyester film is particularly preferable from the viewpoint of cost and performance. Further, the film thickness of the film support is preferably in the range of 6 to 50 μm, more preferably 12 to 25 μm from the viewpoint of transferability and cost. In addition, as the paper support, high-density paper such as glassine paper, laminated paper in which a resin film such as polyethylene is laminated on clay-coated paper, kraft paper, or high-quality paper can be used. From the viewpoint of performance, glassine paper is preferred. The thickness of the paper support is preferably in the range of 20-50 μm.

In addition, these support bodies apply | coated the mold release agent, such as a silicone compound, a fluororesin, and a fluoro silicone resin, on the surface of both surfaces of a support body, and a sheet | seat (hereinafter, it may be called a release sheet) that both surfaces have peelability. It is preferable to use as

The pressure-sensitive adhesive composition used for forming the pressure-sensitive adhesive layer in the adhesive transfer tape of the present invention is not particularly limited, and a general pressure-sensitive adhesive composition can be used, but an acrylic copolymer and a crosslinking agent are used. A component containing a tackifier resin can be suitably used if necessary.

Examples of the acrylic copolymer have one or more (meth) acrylic acid alkyl esters having 4 to 18 carbon atoms in the alkyl group and other copolymerizable ethylenically unsaturated bonds. Examples thereof include copolymers with one or more monomers.

Examples of the (meth) acrylic acid alkyl ester include, for example, n-butyl (meth) acrylate, isobutyl (meth) acrylate, hexyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, and n-octyl (meth) acrylate. , Isooctyl (meth) acrylate, isononyl (meth) acrylate, lauryl (meth) acrylate, stearyl (meth) acrylate, and the like.

Examples of the monomer having a copolymerizable ethylenically unsaturated bond include, for example, acrylonitrile, methyl (meth) acrylate, ethyl (meth) acrylate, propyl (meth) acrylate, isopropyl (meth) acrylate, and cyclohexyl (meth). Acrylate, styrene, α-methylstyrene, vinyl acetate, N-vinyl-2-pyrrolidone, benzyl (meth) acrylate, 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, acrylic acid, methacrylic acid , Itaconic acid, fumaric acid and the like. In the production of the acrylic copolymer, a monomer having a functional group capable of reacting with a crosslinking agent described later (for example, a monomer having a carboxyl group) is used as an essential component as a monomer having a copolymerizable ethylenically unsaturated bond. Can do.

Examples of tackifying resins include rosin, rosin phenol resins, and rosin resins such as ester compounds and metal salts thereof, terpene polymers, terpene phenol resins, terpene resins such as aromatic modified terpene resins, and styrene resins. Resins, coumarone / indene resins, alkylphenol resins, xylene resins, C5 petroleum resins, C9 petroleum resins, alicyclic hydrogenated resins, etc., but excellent compatibility with acrylic copolymers and acrylic When blended with a copolymer, a natural resin-based rosin resin or terpene resin exhibiting good adhesion and initial tackiness to an adherend such as paper or various films is preferably used.

In the pressure-sensitive adhesive composition of the present invention, examples of the crosslinking agent used for crosslinking the acrylic copolymer include hexamethylene diisocyanate, xylylene diisocyanate, tolylene diisocyanate, 2-chloro-1,4- Diisocyanate compounds such as phenyl diisocyanate, trimethylhexamethylene diisocyanate, 1,5-naphthalene diisocyanate, isophorone diisocyanate, biuret-type trimers, isocyanurate-type trimers of these diisocyanate compounds, isocyanate-based crosslinking agents such as triisocyanate, epoxy-based Examples thereof include a cross-linking agent, a melamine-based cross-linking agent, a metal chelate-based cross-linking agent, and an adduct of a polyol such as trimethylol propane, which can be appropriately selected and used.

In the pressure-sensitive adhesive composition, an inorganic or organic colorant may be added within a range that does not impair adhesiveness, tackiness, film breakage, etc., and the adhesive layer may be colored.

The thickness of the pressure-sensitive adhesive layer is preferably in the range of 5 to 35 μm, more preferably in the range of 10 to 25 μm, in consideration of the adhesive force to the paper surface, the holding power and the film breakability. The pressure-sensitive adhesive layer can be formed by applying the pressure-sensitive adhesive composition using, for example, a bar coater, roll coater, gravure coater, knife coater, die coater, comma coater, lip coater or the like.

FIG. 2 shows a coating film transfer tool B having a transfer roller 7B according to the second embodiment of the present invention. 2A is a front view of the coating film transfer tool B with the cover removed, and FIG. 2B is a bottom view of the coating film transfer tool B with the cover set. FIG. 2 (c) is a diagram showing the transfer roller 7B alone, and FIG. 2 (d) is a cross-sectional view taken along the line MM of FIG. 2 (c).

The coating film transfer tool B is the same as the coating film transfer tool A except that the cross-sectional shape of the transfer roller 7B is different from the shape of the transfer roller 7 of the coating film transfer tool A.

Whereas the cross-sectional shape of the recess 71 of the transfer roller 7 of the coating film transfer tool A is an arc shape protruding outward, the cross-sectional shape of the recess 71B of the transfer roller 7B is an arc shape recessed in the inner peripheral direction. It has become.

When the transfer roller 7B of the coating film transfer tool B is used, the back surface of the glue transfer tape T does not contact the transfer roller 7B in the recess 71B because the cross-sectional shape of the recess 71B is an arc shape recessed in the inner circumferential direction. Therefore, the frictional force between the surface defining the bottom surface of the recess 71B (hereinafter simply referred to as the bottom surface of the recess 71B) and the glue transfer tape T in the transfer roller 7B is smaller than that of the transfer roller 7, and the glue transfer tape T It becomes easy to slip with respect to the transfer roller 7B.

In the recess 71 of the coating film transfer tool A, the back surface of the glue transfer tape T and the surface defining the bottom surface of the recess 71 in the transfer roller 7 (hereinafter simply referred to as the bottom surface of the recess 71) are in contact. Therefore, if the friction coefficient between the bottom surface of the recess 71 and the back surface of the glue transfer tape T is large, an adhesive film that is not transferred tends to remain on the surface of the base tape after the adhesive film is transferred. Specifically, as described above, in the coating film transfer tool A, even if the transfer roller 7 rotates at a position where the concave portion 71 faces the transfer surface, the glue transfer tape T is in principle against the transfer roller 7. As a result, the glue transfer tape T is not fed out from the feeding core 3. However, if the friction coefficient between the recess 71 and the back surface of the glue transfer tape is large, the glue transfer tape T may be slightly fed out from the feeding core 3.

When the glue transfer tape T is fed out from the feeding core 3 in a state where the concave portion 71 of the transfer roller 7 faces the transfer surface, the following problems occur. That is, after that, when the transfer roller 7 is further rotated and the portion without the recess 71 is located at the position facing the transfer surface, the tip of the adhesive coating film on the glue transfer tape T advances before the transfer position. Thus, the portion of the pressure-sensitive adhesive coating film that has advanced to the front cannot be transferred to the transfer surface by the transfer roller 7. For this reason, the adhesive coating film which is not transferred easily remains on the surface of the base tape. (Hereinafter, this adhesive film remaining without being transferred is referred to as adhesive residue.)

As described above, the transfer roller 7B of the coating film transfer tool B has a shape in which the recess 71B and the back surface of the glue transfer tape T are not in contact with each other. Therefore, when the recess 71B is opposed to the transfer surface, the glue transfer tape is used. T is difficult to be fed out from the feeding core 3. For this reason, in the coating film transfer tool B, an adhesive residue hardly occurs on the surface of the base tape.

Note that the cross-sectional shape of the recess is not limited to those described in the first embodiment and the second embodiment, and may be any shape as long as the same function is achieved, for example, a rectangular shape. . Further, the concave portion may not have a bottom surface. That is, the concave portion may penetrate the transfer roller in the radial direction.

Next, the present invention will be described in more detail based on examples, but the present invention is not limited thereto. In the following, “parts” means parts by weight, and the coating amount, the number of parts, the mixing ratio, etc. are all expressed in terms of solid content.

(Manufacture of release sheet)
A silicone release agent (“KS-3601” manufactured by Shin-Etsu Chemical Co., Ltd.) 93 parts and a cross-linking agent (“cat.PL-50T” manufactured by Shin-Etsu Chemical Co., Ltd.) 5 parts on one side of a 12 μm thick polyethylene film And a mixture of 2 parts of silica powder (“Nippal E220A” manufactured by Nippon Silica Kogyo Co., Ltd.) are coated with a gravure coater so that the dry weight is 0.4 g / m ² and dried with hot air to form a heavy release surface. did. Next, 95 parts of a silicone release agent (“KS-3650” manufactured by Shin-Etsu Chemical Co., Ltd.) and a crosslinking agent (“cat.PL-50T” manufactured by Shin-Etsu Chemical Co., Ltd.) 5 are provided on the other surface of the polyethylene film. Part of the mixture was coated with a gravure coater so that the dry weight was 0.4 g / m ² , dried with hot air to form a light release surface, and a release sheet was obtained.

(Manufacture of adhesive composition)
First, 98 parts of acrylic pressure-sensitive adhesive (“SK Dyne 801B” manufactured by Soken Chemical Co., Ltd., containing acrylic copolymer and tackifying resin) and cross-linking agent (“Curing Agent L-” manufactured by Soken Chemical Co., Ltd.) 45 ") 2 parts were mixed to obtain a base acrylic pressure-sensitive adhesive composition.

(Manufacture of glue transfer tape)
The pressure-sensitive adhesive composition was applied on the light release surface of the release sheet with a comma coater to a thickness of 20 μm (when dried), and dried at 100 ° C. for 3 minutes. Thereafter, the light release surface was bonded to the heavy release surface side and wound into a roll. Further, the roll was cut into a width of 6 mm in order to be accommodated in a coating film transfer tool, thereby obtaining a paste transfer tape.

A transfer roller X and a transfer roller Y having the shapes shown in FIG. 1 and FIG. The same components were used except for the transfer roller, and the coating film transfer tool of Example 1 with the transfer roller X attached and the coating film transfer tool of Example 2 with the transfer roller Y attached were prepared. A transfer test was performed using a glue transfer tape in which a pressure-sensitive adhesive coating film was applied over 6.0 m on a base tape for each coating film transfer tool. For both the transfer rollers X and Y, a polyacetal shaft having an outer diameter of 3 mm was used as the central shaft. The outer peripheral part was manufactured using a thermoplastic elastomer having a hardness of 75 degrees, in which 5 parts of polypropylene resin was blended with 95 parts of styrene-based thermoplastic elastomer. The width dimensions of the glue transfer tape used for each coating film transfer tool and the width dimensions of the

recesses

71 and 71B of each roller were measured using a measuring microscope MM-800 manufactured by Nikon Corporation. It was a result. The width of the glue transfer tape used for the coating film transfer tool of Example 1 was 6.01 mm. The width of the glue transfer tape used for the coating film transfer tool of Example 2 was 5.99 mm. The

recesses

71 and 71 of the transfer roller X of Example 1 were 6.51 mm and 6.42 mm. The

recesses

71B and 71B of the transfer roller Y of Example 2 were 6.63 mm and 6.48 mm.

The pressure-sensitive adhesive coating film was transferred at a transfer speed of 5 cm / sec using a PPC paper as a transfer surface, a pressing force for pressing the transfer roller against the PPC paper at 5.0 N, and a coating film transfer tool moving.

A coating film transfer test was carried out using the coating film transfer tool of Example 1 and Example 2 with the adhesive coating film still remaining on the pancake of the feeding core 3 and the transferred perforation. The length of each of the film-like coating films and the interval between the perforated-transferred coating films were measured. Specifically, the transfer length (transfer length of FIG. 5) of nine continuous perforated adhesive coating films and the interval between the nine perforated adhesive coating films 8 (interval length in FIG. 5) was measured. The base tape of the part used for the nine perforated transfers was confirmed, and the presence or absence of an adhesive coating film (adhesive residue) remaining without being transferred to the base tape was visually confirmed. Also, continuous transfer is performed from the start of transfer until the adhesive coating film on the glue transfer tape has been transferred, during which the transfer roller has moved to transfer the adhesive coating film, that is, the transferred perforated coating. The total length of the membrane was measured. The results are shown in Table 2.

A, B: Coating film transfer tool T: Glue transfer tape T1: Base tape 1: Case 2: Cover 3: Feed core 4: Transfer head 5: Winding core 6: O-

ring

7, 7B:

Transfer roller

71, 71B :

Recess

72, 72B: Both sides

Claims

A coating film transfer tool for transferring an adhesive pressure-sensitive adhesive coating film to a transfer surface,
A pay-out portion for feeding out the paste transfer tape provided with the adhesive coating film on the base tape;
A rotatable transfer roller having an outer peripheral surface for pressing the adhesive transfer tape against the transfer surface in order to transfer the adhesive coating film onto the transfer surface;
A winding part for winding the base tape after transfer;
With
A recess having a width wider than the width of the glue transfer tape is provided on a part of the outer peripheral surface of the transfer roller,
The concave portion is configured such that the glue transfer tape does not contact the transferred surface when the transfer roller is pressed against the transferred surface with the concave portion facing the transferred surface.
Film transfer tool.
The concave portions having the same shape are provided at equiangular intervals on the outer peripheral surface of the transfer roller.
The coating film transfer tool according to claim 1.
The difference between the width of the recess and the width of the glue transfer tape is 0.3 mm or more and 1.3 mm or less.
The coating film transfer tool according to claim 1.
The difference between the width of the recess and the width of the glue transfer tape is 0.3 mm or more and 1.3 mm or less.
The coating film transfer tool according to claim 2.
A housing that at least partially houses the feeding portion, the transfer roller, and the winding portion;
Further comprising
The coating film transfer tool according to claim 1.
The transfer roller is rotatably held in the housing;
The coating film transfer tool according to claim 5.
A transfer head held in the housing;
Further comprising
The transfer roller is rotatably held by the transfer head;
The coating film transfer tool according to claim 5.
A housing that at least partially houses the feeding portion, the transfer roller, and the winding portion;
Further comprising
The coating film transfer tool according to claim 2.
The transfer roller is rotatably held in the housing;
The coating film transfer tool according to claim 8.
A transfer head held in the housing;
Further comprising
The transfer roller is rotatably held by the transfer head;
The coating film transfer tool according to claim 8.
A housing that at least partially houses the feeding portion, the transfer roller, and the winding portion;
Further comprising
The coating film transfer tool according to claim 3.
The transfer roller is rotatably held in the housing;
The coating film transfer tool according to claim 11.
A transfer head held in the housing;
Further comprising
The transfer roller is rotatably held by the transfer head;
The coating film transfer tool according to claim 11.
A housing that at least partially houses the feeding portion, the transfer roller, and the winding portion;
Further comprising
The coating film transfer tool according to claim 4.
The transfer roller is rotatably held in the housing;
The coating film transfer tool according to claim 14.
A transfer head held in the housing;
Further comprising
The transfer roller is rotatably held by the transfer head;
The coating film transfer tool according to claim 14.