JP4716355B2 - Adhesive patch with adhesive tape and method for producing the same - Google Patents

Description

  The present invention relates to a patch with an adhesive tape provided around a patch to be used by being attached to the skin of an affected area, and particularly, when used, the release liner covering the adhesive tape and the paste is peeled off satisfactorily. The present invention relates to a patch with an adhesive tape and a method for producing the same.

  The patch used by sticking to the skin of the affected part has been used by further sticking an adhesive tape on the patch in order to prevent the patch from slipping or falling off at the time of sticking. For this reason, there are products that sell individual adhesive tapes that match the size and shape of the patch, or sell it as an appendix to the patch.

  However, it is troublesome to further apply an adhesive tape after applying the patch, and there are many failures in which the adhesive tape is misaligned and applied to the patch. For this reason, the adhesive tape-attached patch which already hold | maintained the adhesive patch in the center of the adhesive tape at the time of the product was anxious.

  Therefore, there is no need to develop an adhesive tape with an adhesive tape that has adhesive tape around the adhesive to prevent the patch from slipping or falling off when using it, and a special machine for it. The manufacturing method which can be manufactured easily using it was proposed (for example, refer patent document 1).

  This includes a step of spreading and applying a paste on the surface of a support, and bonding a release liner to the surface of the paste, and removing a predetermined laminate of the support and the paste leaving the release liner. Punching into a shape and removing the excess support and paste other than the punched shape from the release liner; and the entire release liner leaving a laminate of the punched shape and support on the surface A step of attaching an adhesive tape to the surface, and then subdividing and cutting.

According to this proposal, since the plaster body is spread and applied to the support and the release liner is immediately bonded onto the surface of the plaster body, there is an advantage that there is little mixing of dust or the like and evaporation of the active ingredient. In addition, the laminate of the support and the paste is punched out leaving the release liner, and the excess laminate is removed from the release liner, so the punching shape is free, and the release liner remains connected, There is an advantage that continuous production becomes easy. Furthermore, when the adhesive tape is bonded to the entire surface of the release liner, the adhesive tape may be adjusted so as to cover the release liner, so that it is easy to position, continuous production is facilitated using a conventional manufacturing machine. It has the advantage that it can be manufactured.
JP-A-3-85160

  However, in the previous patch, the adhesive patch and the adhesive tape arranged so as to protrude from the periphery of the adhesive patch are coated on one release liner. Therefore, when peeling the release liner from the adhesive tape and the paste, It will be in the state which cannot be peeled easily.

  An object of this invention is to obtain the adhesive tape with adhesive tape which can peel well the peeling liner which covers an adhesive tape and a plaster body in use, and its manufacturing method.

The adhesive tape-attached patch according to the invention described in claim 1 includes an adhesive patch in which a paste is spread and applied on the upper surface of a support, and the adhesive patch so that an adhesive peripheral edge projects along the outer periphery of the adhesive paste. In a patch with a pressure-sensitive adhesive tape comprising: a pressure-sensitive adhesive tape held on the pressure-sensitive adhesive surface; and a release liner that covers the paste surface of the patch and the pressure-sensitive adhesive surface of the pressure-sensitive adhesive tape;
The release liner comprises a plurality of cuts that are cut in a wave shape leaving some joints ;
The joint is formed as an overlap gap between adjacent cut ends .

A method for producing a patch with an adhesive tape according to a second aspect of the present invention comprises: a step of spreading and applying a plaster on a support surface and adhering a release liner to the surface of the plaster; leaving the release liner Punching the laminate of the support and paste into a predetermined punched shape to remove excess support and paste other than the punched shape from the release liner; and the punched paste An adhesive tape-attached patch comprising: a step of pasting an adhesive tape so as to cover a peripheral edge of a laminate with a support, and then subdividing into a patch shape; and packaging a subdivided cut patch In the manufacturing method,
Before the step of packaging the patch, comprising a cutting step of forming a plurality of wavy cuts leaving some joints of the liner ,
The joint is formed as an overlapping gap between adjacent ends of the cut .

  INDUSTRIAL APPLICABILITY The present invention is suitable for continuous production at the time of production, and can be used to obtain a patch with a pressure-sensitive adhesive tape that can satisfactorily peel off the pressure-sensitive adhesive tape and the release liner covering the paste. There is an effect.

  In the present invention, a patch in which a plaster is spread and applied on the upper surface of a support, an adhesive tape that holds the patch on an adhesive surface so that an adhesive peripheral edge projects along the outer periphery of the plaster, In a patch with a pressure-sensitive adhesive tape comprising a patch body surface of the patch and a release liner covering the pressure-sensitive adhesive surface of the pressure-sensitive adhesive tape, the release liner was cut into a wave shape leaving some joints Provide multiple cuts. Thereby, in the case of manufacture, it is suitable for manufacturing continuously, and in the case of use, the release liner which covers an adhesive tape and a paste can be peeled off favorably.

  That is, without completely separating the release liner, it is cut into a wave shape leaving some joints so as to have a plurality of cuts. Thereby, in use, when the cut portion of the release liner is folded outward, the wavy cut portion is detached from the paste. It becomes easy to pinch the detached part and peel the release liner from the plaster.

  In addition, since the release liner is not completely separated during production, the step of spreading and applying the paste on the support surface and bonding the release liner to the surface of the paste surface, and leaving the release liner to support A step of punching a laminate of the body and the paste into a predetermined punched shape to remove an extra support and paste other than the punched shape from the release liner, and a punched paste and a support. In the method for producing a patch with an adhesive tape comprising the steps of subdividing the adhesive tape so as to cover the periphery of the laminate and then subdividing it into a patch shape, and packaging the subdivided cut patch, Even if a cutting process is performed to form a plurality of wavy cuts leaving some joints before the step of packaging the patch, the subsequent process can be performed with the release liner connected. Become.

  The joint of the present invention may be formed between the cuts that are cut in a wave shape, but more preferably is formed as an overlapping gap between the ends of adjacent cuts. By doing this, fold the cut part of the release liner to the outside at the time of sticking, remove the wavy cutting part from the paste, even if peeled from the paste so as to tear the release liner by pinching this removed part, Even if the overlapping seam is torn, the release liners are satisfactorily separated from each other, so that the release liner does not remain peeled off.

  Since the release liner is in a connected state before the step of packaging the patch, the cutting step of the present invention can be performed in any of the steps described above after the cutting step.

  The number and length of the joints of the present invention may be determined according to the type and thickness of the release liner used. That is, in the subsequent process of the cutting process, the joint of the release liner is broken and the cuts are not connected to each other, and in use, the cut part of the release liner is folded outward so that the wavy cutting site is plastered. It is sufficient that the length is such that it can be easily broken when it is peeled off from the plaster so as to tear the release liners by pinching the removed part.

  In addition, with respect to the plurality of cuts that were cut in a wavy shape of the present invention, the shape was removed when the cut portion of the release liner was folded outward at the time of sticking, and the wavy cut site was removed from the plaster. Any shape may be used as long as the part is pinched with a finger. In addition to a wave without a corner such as a sine wave as in an embodiment described later, a wavy shape such as a blade having a corner such as a saw blade or a combination of irregularities such as a flat tooth can be selected.

  As a material for the release liner of the present invention, for example, polyethylene, polypropylene, polyester, polystyrene and the like are preferably used. Moreover, the thing which gave the silicon | silicone process to the surface at the side of a paste body, the thing which embossed, or the thing which gave coloring and / or printing can also be used. The thickness of the release liner is not particularly limited, but it is set to such a thickness that the wavy cutting site is removed from the plaster when the cut portion of the release liner is folded outward. For example, it is 5 to 200 μm, more preferably 20 to 100 μm. Further, when the release liner is torn, the liner is provided with an easy tear property so that the overlap gap is torn well in the adjacent cut. For example, a resin in which a liner is elongated in the longitudinal direction to easily tear in the longitudinal direction may be used, or a resin in which a large number of fine grooves are formed in the longitudinal direction may be used.

  Moreover, 5-10 mm is good for the width | variety of the adhesion periphery provided so that it may protrude along the outer periphery of a patch. In other words, if it is 5 mm or less, it becomes impossible to oppose the decrease in adhesive force accompanying expansion and contraction of the affected area, and if it is 10 mm or more, there is no decrease in adhesive force, but it is necessary to take a large area of the adhesive tape, This is to increase the cost.

  The plaster of the adhesive tape-attached patch according to the present invention contains a drug effective directly on the skin and a drug effective locally or on the whole body through percutaneous absorption in a base such as a shape-retaining agent / adhesive. Is.

  Specific examples of active agents contained in the plaster of the present invention include indomethacin, ketoprofen, flurbiprofen, ibuprofen, piroxicam, methyl salicylate, glycol salicylate, l-menthol, dl-camphor as analgesic / antiinflammatory agents. , Valinyl acid nonylate, capsaicin and various herbal medicines. Examples of coronary vasodilators include nitroglycerin, nifedipine, and isosorbide nitrate. Other drugs include clonidine and kallikrein (antihypertensive). There are corticosteroids and antibacterial agents.

  Examples of the shape-retaining and pressure-sensitive adhesive contained in the plaster include thickeners such as sodium carboxymethylcellulose, sodium methylcellulose, polyvinyl alcohol, sodium alginate, sodium polyacrylate, polyvinylpyrrolidone, gelatin, carbopol, natural There are adhesives of rubber, synthetic rubber, styrene-isoprene-styrene block copolymer, silicone resin, and polyvinyl ether.

  Further, humectants used as needed include glycerin, propylene glycol, sorbitol and the like.

  In addition, the support of the present invention serves to apply and hold the plaster, and is in contact with the drug, prevents the back of the drug from being stretched, and is stretchable and ventilated to improve the fit to the skin. Good quality and texture are used. Specific examples include flannel, woven fabric, knitted fabric, non-woven fabric, and plastic film. In addition, since there is a punching process in the process of the manufacturing method according to the present invention, the shape can be freely formed as rounded corners, slits, and the like.

  Moreover, as an adhesive tape of this invention, in order to make a plaster body and a support body fit a skin more, it is provided so that it may protrude over the perimeter at least. This has the following characteristics. That is, (1) the plaster adheres to the skin and does not peel off. (2) Prevent the drug from protruding from the surroundings. For this reason, a patch is obtained in which there is no problem such that the plaster protrudes and sticks out of place other than the place where it is stuck, or is inadvertently peeled off.

  As a specific material of the pressure-sensitive adhesive tape, a highly air-permeable material such as a nonwoven fabric or a plastic film is used, and a structure having a fine air hole or a large air hole in the central portion can be taken.

  Moreover, as an adhesive of the adhesive tape of this invention, as a specific example, it is a thing of a polyacrylate ester type | system | group, a natural and synthetic rubber type | system | group, and a styrene-isoprene-styrene block polymer type, and there is little blurring on skin. Things are used.

  FIG. 1 is an explanatory view showing the structure of an adhesive tape-attached patch obtained by the production method of the present invention, wherein a is a bottom view and b is a cross-sectional view along AA. FIG. 2 is an explanatory view showing the usage state of the patch of FIG. In the figure, the patch 10 of the present invention is a patch formed by laminating and applying a paste 12 on the bottom surface of a support 11, and the adhesive peripheral edge protrudes along the outer periphery of the patch 10. Thus, the adhesive tape 13 which hold | maintained the patch 10 on the adhesive surface 14 of the bottom face side, and the peeling liner 15 which coat | covered the plaster body 12 of the adhesive patch 10 and the adhesive surface 14 of the said adhesion periphery of the adhesive tape 13 are provided. .

  The release liner 15 is provided with a wave-like cut 16 at substantially the center in the longitudinal direction. Two cuts 17 are formed in the cut 16, and the cut liner 16 completely separates the release liner 15 into two. is not. In the present embodiment, two cuts 17 are left and the cut 16 is formed in the release liner 15, but the number and width may be increased or decreased.

  As shown in FIG. 2, when the patch 10 is used, the cut 16 portion of the release liner 15 is folded outward. As a result, a part of the wavy cuts comes off the plaster 12 and jumps out. The protruding portion 18 is pinched with a finger and peeled off from the paste so as to tear the release liners 15 apart. As a result, there is no remaining peeling of the release liner 15.

  FIGS. 3a to 3c are process diagrams showing an embodiment of a process for producing a patch with an adhesive tape. As shown in FIG. 3 a, the plaster body 32 is spread and applied to the belt-like support 31, and the belt-like patch 30 is obtained by laminating the belt-like release liner 35 on the surface of the plaster body 32. As described above, since the release liner 35 is bonded onto the layer surface of the plaster 32 immediately after the plaster 32 is spread and applied to the support 31, there is little mixing of dust or the like and evaporation of the active ingredient.

  As shown in FIG. 3 b, the strip-shaped patch 30 is made the release liner 35, the paste 32, and the support 31 in order from the bottom with the front and back reversed. The belt-like patch 30 is punched out at a fixed interval by the planographic punching machine 22 having a rectangular punching die upward, leaving the release liner 35, and the patch 20 and its outer periphery are removed. The part 21 is separated. Further, the excess portion 21 of the outer peripheral portion of the punched patch 20 and the plaster is removed from the release liner 35.

  The obtained patch 20 is placed evenly on the strip-shaped release liner 35 at a position having an edge having an equal length in both width directions at intervals of a distance that is twice the edge. In order to remove the excess portion 21 from the release liner 35, the punching shape can be freely selected when punching with the release liner 35 left. As described above, the punching shape is provided along the outer periphery of the patch 20. Since the width of the adhesive peripheral edge is preferably 5 to 10 mm, it is preferably substantially square and leaves an edge of 5 to 10 mm.

  As shown in FIG. 3c, the punching machine is provided with a punching die for punching the release liner 35 of the patch 20 from which the extra portion 21 on the outer periphery has been separated from above to form a wavy cut as shown in FIG. Punch with 24. As described above, since the seam 17 is formed in the wavy break, it can be transferred to the subsequent process without any problem.

  In a subsequent process, the belt-like adhesive tape 25 from which the release paper 26 is removed is bonded to the entire surface of the release liner 35 that leaves the punched plaster 32 and the patch 20 of the support 31 on the surface. After the pasting, the product 20 was obtained by subdividing the patch 20 with a cutting machine 27. Since the pressure-sensitive adhesive tape 25 is bonded to the entire surface of the release liner 35 as described above, the pressure-sensitive adhesive tape 25 may be prepared so as to cover the release liner 35. Therefore, positioning is easy and continuous production is facilitated.

  The cleaving of the release liner in FIG. c may not be performed after the excess portion 21 on the outer periphery is separated. For example, it may be arranged in a punching die that is pressed from the lower side of the planographic punching machine 22 in FIG. B, and a cut line may be formed at the same time when a laminate of a support and a plaster is punched into a square, Before and after.

  In FIG. 3A and FIG. 3B, the terminal end may be continued to the next step, or may be temporarily wound around a drum or the like. Further, the punching machine 22 and the cutting machine 27 are not limited to those of the embodiments, and for example, a die roll cut-like punching machine may be used instead of the lithographic punching machine, and the cutting machine is also a die roll. A cut-like cutting machine may be used.

  As described above, this manufacturing method increases the cost because it is unavoidable to discard the excess punched parts, but it is sufficiently profitable because there are extremely few manufacturing errors compared to the conventional continuous manufacturing. It is a manufacturing method.

It is explanatory drawing which shows the structure of the adhesive tape with an adhesive tape obtained by the manufacturing method of this invention, a figure is a bottom view, b figure is AA sectional drawing. It is explanatory drawing which shows the use condition of the patch of FIG. FIGS. a to c are process diagrams showing an embodiment of a process for producing a patch with an adhesive tape.

Explanation of symbols

10 ... patch,
11 ... support,
12 ... plaster,
13 ... Adhesive tape,
14 ... Adhesive surface,
15 ... release liner,
16 ...
17 ... Seam,
18 ... The part that jumped out,
20 ... patch,
21 ... the extra part,
22 ... A lithographic punching machine,
24 ... Punching machine,
25 ... Adhesive tape,
26 ... release paper,
27 ... Cutting machine,
30 ... strip patch,
31 ... support,
32 ... plaster,
35 ... release liner,

Claims (2)

A patch in which a plaster is spread-applied on the upper surface of the support, an adhesive tape that holds the patch on the adhesive surface so that an adhesive peripheral edge projects along the outer periphery of the plaster, and a plaster of the patch In a patch with an adhesive tape comprising a release liner covering the surface and the adhesive surface of the adhesive peripheral edge of the adhesive tape,
The release liner comprises a plurality of cuts that are cut in a wave shape leaving some joints ;
The patch with adhesive tape , wherein the joint is formed as an overlap gap between adjacent cut ends . A step of spreading and applying the plaster on the surface of the support and bonding a release liner to the surface of the plaster; and punching out a laminate of the support and the paste in a predetermined punching shape while leaving the release liner A step of removing excess support and paste other than the punched shape from the release liner; and affixing an adhesive tape so as to cover the periphery of the laminate of the punched paste and support In a method for producing a patch with an adhesive tape, comprising: a step of subdividing and cutting into a patch shape;
Before the step of packaging the patch, comprising a cutting step of forming a plurality of wavy cuts leaving some joints of the liner ,
A method for producing a patch with an adhesive tape, characterized in that the joint is formed as an overlapping gap between the ends of adjacent cuts .

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