JP3967675B2 - Patch and apparatus for producing the same - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a patch.andIts manufacturing equipmentIn placeRelated.
[0002]
[Prior art]
  In the patch, a paste body having an analgesic effect and a moisturizing effect is formed in a layer shape on the upper surface of the support, and a release liner is detachably overlapped on the upper surface of the paste layer (for example, Patent Documents 1 to 3). 3). When using such a patch, the release liner may be peeled off from the paste layer, and the paste layer may be attached to a site such as a shoulder or a knee.
[0003]
  FIG. 11 is a schematic side view of a conventional patch manufacturing apparatus. As shown in the figure, both the support sheet 10S fed out from the single support roll 10R and the release sheet 31S fed out from the single release roll 31R are both plaster. It is sent to the layer forming unit 60. The paste layer forming unit 60 forms a paste layer between the support sheet 10S and the release material sheet 31S. Then, the polymer sheet 70 superimposes the support sheet 10S, the plaster layer, and the release material sheet 31S in order to form the original patch sheet 101S. Finally, the patch 101 is die-cut from the original patch sheet 101S by the die cutting unit 80.
  According to the conventional patch manufacturing apparatus, the patch 101 in which the support, the plaster layer, and the release material are sequentially stacked can be continuously manufactured.
[0004]
  Conventional patches are relatively thick with a support of about 1 mm in thickness, such as non-woven fabric. However, when the support is thick, the followability to the skin is poor when applied to the skin. Easy to peel off. Therefore, an extremely thin polyurethane film patch having a thickness of about 50 μm has been developed. When the support is a very thin polyurethane film, the followability to the skin is good and it is difficult to peel off from the skin.
[0005]
  As a patch having a relatively thick support such as a nonwoven fabric, there are types of release liners as shown in (A) or (B) below.
  (A) Slit type
  For a patch having a relatively thick support such as a nonwoven fabric, there is a patch of a type in which a release liner is slit at an intermediate portion and divided into two. According to this patch, even if one release liner is peeled off, the remaining release liner remains, so the paste layer on the side where the paste layer is exposed is applied to the skin, and then the remaining release liner And the remaining plaster layer can be attached. For this reason, it can prevent sticking layers sticking together and it is easy to stick a patch on skin.
  (B) Two-sheet type
  For a patch having a relatively thick support such as a non-woven fabric, two release sheets 131 and 132 are superimposed on each half of the surface of the plaster layer 20, as shown in FIG. 10, instead of slitting the release liner. Some types have been made. Each of the two release liners 131 and 132 is slightly larger than the half surface of the plaster layer 20, and an overlap margin is formed at the inner end edge portion. It is lying down in contact with the surface of the release liner 131. According to this patch, since the polymerized portion can be easily picked with a finger, the release liner can be peeled off more easily than the slit type (A).
[0006]
[Patent Document 1]
4-120727
[Patent Document 2]
ACT 5-054515
[Patent Document 3]
Japanese Utility Model Publication 3-59327
[0007]
[Problems to be solved by the invention]
  However, for a patch of a polyurethane film with a very thin support, there are both a slit type (A) in which a release liner is slit and a two-sheet type (B) in which two release liners are superposed for reasons described later. Did not exist. For this reason, there is a problem that when the release liner is peeled from the paste layer, the paste layers adhere to each other and the patch cannot be applied well to the skin.
[0008]
  The reason why the slit type (A) cannot be produced when the support is an extremely thin polyurethane film patch is as follows. In other words, when the support is extremely thin like a polyurethane film, the polyurethane film is too soft and the pressure applied by the cutter even if only the release liner is slit with a cutter when the release liner is superimposed on the plaster layer. This is because the release liner cannot be cut or even the polyurethane film may be cut.
[0009]
  In addition, when the support is an extremely thin polyurethane film patch, the reason why the two-sheet laminated type (B) cannot be produced is as follows. That is, as shown in FIG. 4, the overlap margins of the two release liners are overlapped with each other, and the polymerization portion is laid down, so that three release liner materials are overlapped in the polymerization portion. For this reason, the polymerization part of a release liner will become quite thick compared with the polyurethane film of a support body. As a result, when several patches are stacked and stored in a case, they are bulky and must be stored in a large case, and an extra display space is required when displaying as a product. However, in order to make the patch uniform in thickness, the plaster layer must be thinned only at the polymerized portion, and the plaster layer may not be uniform.
[0010]
  On the other hand, the conventional apparatus for producing a patch feeds a single release material sheet 31S from a single release material roll 31R and superimposes a paste layer and a support sheet 10S on the release material sheet 31S in this order. Thus, the original patch sheet 101S is formed. For this reason, the die-cutting part 80 can die-cut the patch 101 only one by one from the original patch sheet 101S, and the patch cannot be manufactured efficiently.
[0011]
  In view of such circumstances, the present invention is easy to peel off the release liner, can prevent the paste layers from sticking to each other when affixed to the skin, is easy to affix the patch to the skin, has good followability to the skin, and the whole Patch, which can make the plaster layer uniform, can not be wrinkled even if it is affixed to a bending site, and can be manufactured efficiently.PlaceThe purpose is to provide.
[0012]
[Means for Solving the Problems]
  The patch of claim 1 is a patch in which a plaster layer is formed on the upper surface of a support, and a release material is superimposed on the upper surface of the plaster layer, wherein the support is a skin following thin film. The release material comprises a pair of release liners, one release liner is overlaid on a portion of the paste layer, and another release liner is overlaid on the remaining portion of the paste layer, An overlap margin is formed on the inner edge of the release liner, the back surface of the overlap margin is superimposed on the inner edge of the surface of the one release liner, and the support is substantially square, An intermediate portion of each side portion is partially deleted to form a concave portion that is recessed inward, and the inner edge of the one release liner is along a line connecting the opposing concave portions of the support. The overlap margin of the other release liner is Characterized in that it is arranged so as to exceed the line connecting the recesses facing each other of the support.
[0013]
  The patch manufacturing apparatus according to claim 2 is a manufacturing apparatus for continuously manufacturing a patch including a support, a plaster layer, and a release material, and a support sheet serving as the support is wound up. A support roll support portion that rotatably supports the support fabric roll, and a release material roll support portion that rotatably supports the release material roll on which the release material sheet as the release material is wound. A plaster layer forming portion for forming a plaster layer between a support sheet fed from the support roll and a release sheet fed from the release roll; and the support A release part roll support comprising a polymer part for forming an original patch sheet by superimposing a body sheet, a paste layer and a release sheet, and a die cutting part for punching the patch from the original patch sheet. A plurality of roll support shafts and each roll A plurality of release material rolls for release material that are rotatably attached to each holding shaft, and a speed adjustment unit that adjusts the rotation speed of the roll support shaft so that the feeding tension of the release material sheet is constant. And the plurality of release material rolls are attached so as to be partially overlapped with each other along the axial direction of the roll support shaft. It is characterized by that.
  The device for producing a patch according to claim 3 is a device for continuously producing a patch comprising a support, a plaster layer and a release material, and a support sheet serving as the support is wound up. A support roll support portion that rotatably supports the support fabric roll, and a release material roll support portion that rotatably supports the release material roll on which the release material sheet as the release material is wound. A plaster layer forming portion for forming a plaster layer between a support sheet fed from the support roll and a release sheet fed from the release roll; and the support A release part roll support comprising a polymer part for forming an original patch sheet by superimposing a body sheet, a paste layer and a release sheet, and a die cutting part for punching the patch from the original patch sheet. The roll support shaft and the roll support shaft A release material roll that is attached to be rollable, a cutting portion that cuts the release material sheet fed from the release material roll into a plurality of liner sheets along its running direction, and the cutting portion A plurality of liner sheets cut in step are partially overlapped with each other at the edges of adjacent liner sheets so that the edge overlapping portions constituting the release material sheet and the feeding tension of the release material sheet become constant. And a speed adjusting unit for adjusting the rotation speed of the roll support shaft.
0014]
[0015
DETAILED DESCRIPTION OF THE INVENTION
  Next, an embodiment of the present invention will be described with reference to the drawings.
  FIG. 1 is a plan view of the patch 1 of the present embodiment. 2 is a sectional view taken along line II-II in FIG. As shown in FIGS. 1 to 2, the patch 1 of the present embodiment is composed of a support 10, a paste layer 20, and a release material 30.
[0016]
  First, the support 10 will be described.
  The support 10 is obtained by superimposing a woven fabric 12 on the surface of a skin following type thin film 11.
  The skin following type thin film 11 is a thin polyurethane film having a thickness of about 10 μm. For this reason, when pasted on the skin, the followability to the skin is good.
  The thickness of the skin follow-up type thin film 11 is preferably about 10 to 100 μm. However, the skin follow-up type thin film 11 is not limited to the above values as long as the follow-up property to the skin is good when pasted on the skin. .
  Furthermore, the skin following type thin film 11 is not only a polyurethane film, but also various films, such as a polyethylene film, a polypropylene film, a nylon film, etc., as long as they have good followability to the skin when attached to the skin. Can be used.
[0017]
  Since the woven fabric 12 is made of, for example, fibers woven into a cloth shape, it is strong and has high stretchability and high breathability. This woven fabric 12 can reinforce the skin following thin film 11 and prevent the film from being torn.
  Note that the support 10 does not necessarily include the woven fabric 12 but may be only the skin following thin film 11.
[0018]
  The support 10 has a rounded square shape, a part of the middle part of each side part is deleted, and a recessed part 13 that is recessed inward is formed. Since there is a recess 13, that is, a gap, between the left and right side portions of the support 10, the patch 1 is applied to a bent portion such as a knee, elbow, or heel, and the bent portion is formed as shown in FIG. Even if it is bent or the bent portion is extended as shown in FIG. 3B, the support 10 does not become wrinkles, the followability to the skin can be improved, and it can be prevented from peeling off from the skin.
  The shape of the support 10 is not limited to the above shape, and may be a simple square, a rectangle, a circle, a polygon, or a combination thereof, and various shapes can be adopted.
[0019]
  Next, the plaster layer 20 will be described.
  As shown in FIG. 2, a plaster layer 20 is formed on the entire surface of the support 10. The plaster layer 20 is formed by forming a gel-like plaster in a layer shape, and may be formed by sticking the plaster to the support 10 with an applicator.
[0020]
  For the plaster, various drugs such as a moisturizer, a non-steroidal anti-inflammatory agent, a steroidal anti-inflammatory agent and the like can be used.
  Examples of the humectant include polyhydric alcohols such as glycerin, propylene glycol, 1,3-butylene glycol and sorbitol; NMF components such as amino acids and sodium pyrrolidonecarboxylate; hyaluronic acid, collagen, mucopolysaccharide, chondroitin sulfate, and the like. Water-soluble polymers can be exemplified.
  Examples of the non-steroidal anti-inflammatory agent include salicylic acid and its salts, salicylic acid derivatives such as aspirin, acetaminophen indomethacin, ibuprofen, ketoprofen and the like.
  Examples of the steroidal anti-inflammatory agent include amsinoids, prednisolone valerate, diflucortron valerate, betamazone acetate, hydrocortisone, fluocinonide, clobetasol propionate, hydrocortisone acetate, and the like.
  In addition to the above, the drugs that can be used as the plaster include diphenhydramine, lidocaine, vitamin E, glycyrrhetinic acid or derivatives thereof, and these can be used alone or in combination of two or more.
[0021]
  Next, the release material 30 will be described.
  As shown in FIGS. 1 to 2, a release material 30 having the same size as the support 10 is superimposed on the entire surface of the plaster layer 20. The release material 30 is composed of a pair of release liners 31 and 32. These release liners 31 and 32 are, for example, polyester sheets. For this reason, the plaster layer 20 can be protected, and the release liners 31 and 32 can be easily peeled from the surface of the plaster layer 20.
  The color of the release liners 31 and 32 is transparent and can be seen through the color of the plaster layer 20, but may be colored, colored, opaque, translucent, etc., and is arbitrary.
  The release liners 31 and 32 may be made of various materials as long as they can protect the plaster layer 20 and can be peeled from the plaster layer 20 such as polypropylene and polyethylene as well as polyester. Can do.
  As a material for the release liner, polyethylene, polypropylene, polyester, polystyrene and the like are preferably used. Moreover, the thing which performed the silicon process on the surface by the side of an adhesive, the thing which embossed, or the thing which colored and / or printed is used suitably. The thickness of the release liner is not particularly limited, but a range of 20 to 100 μm is preferable because both protection of the pressure-sensitive adhesive layer and usability are satisfied.
[0022]
  The release liner 31 has the same shape as the right half of the support 10, and is superimposed on the right half of the plaster layer 20.
  The shape of the release liner 31 is not limited to the same shape as the right half of the support 10, but may be any shape that can be superimposed on a part of the plaster layer 20. Further, the place where the release liner 31 is attached may be not only the right half of the plaster layer 20, but also the left half, the upper half, and the lower half of the plaster layer 20.
[0023]
  The release liner 32 is slightly larger than the left half surface of the support 10, and an overlap margin 34 is formed on the inner edge portion. The release liner 32 is superimposed on the left half of the plaster layer 20. For this reason, the back surface of the overlap margin 34 of the release liner 32 is overlapped along the inner edge of the surface of the release liner 31.
  Therefore, the part where the release liner 32 overlaps the upper surface of the release liner 31, that is, the overlap margin 34 can be easily picked with a finger. Therefore, the release liner 32 can be easily and cleanly peeled off. And since the superposition | polymerization part is thin, the paste layer 20 can be formed uniformly and easily.
[0024]
  The release liner 31 is disposed such that the inner edge thereof is along a line connecting the opposing recesses 13 and 13 of the support 10. On the other hand, the overlap margin 34 of the release liner 32 is disposed so as to exceed the line connecting the opposing recesses 13 and 13 of the support 10.
  For this reason, since the overlap margin 34 of the release liner 32 can be formed at a location exceeding the line connecting the opposing recesses 13 and 13 in the support 10, both side end portions 33 and 33 of the overlap margin 34 are formed in the recesses. 13 and can be formed so as to extend outward than 13, so that both end portions 33, 33 of the overlap allowance 34 can be easily grasped. For this reason, the release liner 32 can be peeled cleanly from the plaster layer 20.
[0025]
  According to the patch 1 of the present embodiment configured as described above, the following effects (1) to (4) are exhibited.
(1) Since the back surface of the overlap margin 34 of the release liner 32 is overlapped with the upper surface of the release liner 31, the overlap margin 34 of the release liner 32 can be easily picked with a finger. For this reason, the release liner 32 can be easily and cleanly peeled off. Further, even if the release liner 32 is peeled off from the plaster layer 20, the release liner 31 remains on the plaster layer 20, and after the exposed portion of the plaster layer 20 is applied to the skin, the release liner 31 is peeled off. Since the remaining plaster layer 20 can be pasted, the plaster layers 20, 20 can be prevented from sticking to each other, and the patch 1 can be easily pasted on the skin. Furthermore, since the support body 10 is a skin following type | mold thin layer film, when the skin following type | mold thin layer film is affixed on skin, the followability to skin is good. Moreover, since the two overlapping portions of the release liners 31 and 32 are combined, the overall thickness of the release liners 31 and 32 can be made uniform.
(2) Since the skin follow-up type thin layer film is a polyurethane film, the followability to the skin is good and the plaster layer 20 can be adhered to the skin.
(3) Since the support body 10 is substantially square, a part of the middle part of each side part is deleted, and the recessed part 13 that is recessed inside is formed, so that there is a gap between the left and right side parts of the recessed part 13 it can. For this reason, even if the patch 1 is applied to the bent part and the bent part is stretched and bent, the support 10 does not become wrinkles, the followability to the skin can be improved, and the peeling from the skin can be prevented. .
(4) Since the overlap margin 34 of the release liner 32 can be formed at a location exceeding the line connecting the opposing recesses 13, 13 in the support 10, the both end portions 33, 33 of the overlap margin 34 are 13 and can be formed so as to extend outward than 13, so that both end portions 33, 33 of the overlap allowance 34 can be easily grasped. For this reason, the release liner 32 can be peeled cleanly from the plaster layer 20.
[0026]
  Next, an embodiment of a manufacturing apparatus for manufacturing a patch will be described.
  FIG. 4 is a schematic side view of the patch manufacturing apparatus of the present embodiment. As shown in the same figure, the patch manufacturing apparatus of the present embodiment processed the patch by processing the support roll 10R, the plaster, and the plurality of release rolls 31R, 32R. 1 is a manufacturing apparatus for manufacturing 1 continuously.
  The support roll 10R for support is a roll obtained by winding a support sheet 10S to be the support 10 of the patch 1.
  The release material rolls 31R and 32R for release material are obtained by winding release material sheets 31S and 32S to be release liners 31 and 32 of the patch 1, respectively.
  The plaster is a constituent material in the plaster layer 20 of the patch 1.
[0027]
  The patch manufacturing apparatus of the present embodiment is composed of a support roll support part 40, a release material roll support part 50, a plaster layer forming part 60, a polymerization part 70, and a die cutting part 80.
[0028]
  The support sheet 10S fed from the support roll 10R is disposed so as to be processed in the order of the paste layer forming part 60, the superposition part 70, and the die cutting part 80.
  On the other hand, the release material sheets 31S and 32S fed from the release material rolls 31R and 32R are disposed so as to be processed in the order of the paste layer forming part 60, the superposition part 70, and the die cutting part 80. .
  A driving source for feeding the support sheet 10S and the release material rolls 31R and 32R is a pair of rolls 71 and 72 in the superposition unit 70, which will be described in detail later.
[0029]
  First, the support roll support part 40 will be described.
  The support roll support part 40 is provided with a support shaft 41 horizontally. By this support shaft 41, the support roll 10R can be rotatably supported. Reference numeral 42 denotes a dancer roll.
[0030]
  Next, the release material roll support 50 will be described.
  FIG. 5 is a schematic perspective view of the release material roll support 50. FIG. 6 is a plan view of the release material roll support 50. As shown in FIGS. 5 to 6, the release material roll support portion 50 is provided with a plurality of roll support shafts 51. In the figure, four roll support shafts 51 are provided. Each roll support shaft 51 is provided with a release material roll 31R for rotation. The plurality of release material rolls 31R and 32R for the release material are attached to be shifted on the axis of the roll support shaft 51.
[0031]
  7A is a sectional view taken along the line VIIA-VIIA in FIG. 4, and FIG. 7B is a cross-sectional view of FIG. As shown in the figure, since the plurality of release material rolls 31R, 32R are attached on the axis of the roll support shaft 51, the plurality of release material rolls 31R, 32R are separated from each other. By feeding out the plurality of release material sheets 31S and 32S, the edges of the plurality of release material sheets 31S and 32S can be partially polymerized.
[0032]
  According to the release material roll support section 50, the plurality of release material sheets 31S and 32S are fed out from the plurality of release material rolls 31R and 32R, thereby aligning the edges of the plurality of release material sheets 31S and 32S. Partial polymerization can be performed.
[0033]
  The number of roll support shafts 51 is not limited to four, but may be two, three, five, or more.
  Furthermore, the number of roll support shafts 51 may be one. In this case, the roll support shaft 51 supports the wide release material roll 31R for release material, and the release material sheet 31S fed from the single release material roll 31R for release is separated into a plurality of strips along the running direction. A slit may be made in the material sheet 31S, and the edges of the adjacent release material sheets 31S may be partially overlapped.
[0034]
  As shown in FIG. 6, the release material roll support portion 50 is provided with a speed adjustment portion 52. The speed adjustment unit 52 is, for example, a powder brake, and can brake the rotation of the roll support shaft 51.
  The rotation speed of the roll support shaft 51 can be adjusted by the speed adjusting unit 52 so that the tension of the release material sheets 31S and 32S becomes a constant tension. For this reason, it is possible to prevent the release material sheets 31S and 32S from meandering, and it is possible to keep the overlapping portion between the release material sheets 31S and 32S at a constant width.
[0035]
  Next, the plaster layer forming unit 60 will be described.
  The paste layer forming unit 60 includes a tank for storing the paste and a nozzle for injecting the paste, and the gel-like paste can be injected by the nozzle.
  According to the paste layer forming section 60, the paste layer 20 can be formed between the support sheet 10R and the release material sheet 31S.
[0036]
  Next, the overlapping portion 70 will be described.
  The superposition part 70 is composed of a pair of rolls 71 and 72. The pair of rolls 71 and 72 are rotatably provided, and the support sheet 10R, the paste layer 20 and the release material sheet are sandwiched between roll surfaces, and are sent according to the rotation. ing.
  According to the superposition | polymerization part 70, the said base material sheet 10R, the paste layer 20, and the peeling material sheets 31S and 32S can be piled up in that order, and the original patch sheet | seat 1S can be formed.
[0037]
  Next, the die cutting part 80 will be described.
  The original patch sheet 1S sent out from the superposition part 70 is sent to the die cutting part 80. The die cutting part 80 is a member for punching the patch 1 from the original patch sheet 1S, and includes, for example, a pair of cutter rolls. On the roll peripheral surface of the cutter roll, die cutting blades having the same shape as the outer edge of the patch 1 to be punched are formed in multiple rows.
  As shown in FIG. 8, according to the die-cutting part 80, the patch 1 can be continuously die-released from the said original patch sheet | seat 1S with multiple rows by the multi-row die-cutting blade in a cutter roll.
  Note that the number of rows of die cutting blades in the cutter roll of the die cutting portion 80 may be determined according to the number of release material sheets 31S and 32S.
  Furthermore, the die cutting unit 80 may be die cut not only by a cutter roll but also by die cutting.
[0038]
  In addition, it is good to provide the die pressing part 79 which presses a cutting die in the same shape as the outer edge of the patch 1 in the original patch sheet | seat 1S before the die cutting part 80. FIG. The die pressing portion 79 includes, for example, a pair of cutter rolls, and a punching die having the same shape as the outer edge of the patch 1 to be punched is formed on the roll peripheral surface of the cutter roll. According to the die pressing part 79, when the punching die is pressed against the original patch sheet 1S, the portion of the plaster can be moved from the place to the outside or inside. For this reason, in the patch 1 die-cut from the original patch sheet 1S, it is possible to prevent the plaster from protruding from the outer edge of the patch 1.
[0039]
  According to the patch manufacturing apparatus of the present embodiment, the patch 1 can be continuously manufactured as follows.
  FIG. 9 is a flowchart showing a manufacturing process by the patch manufacturing apparatus of the present embodiment. As shown in the figure, the support sheet 10S fed from the support roll 10R and the release sheets 31S and 32S fed from the release rolls 31R and 32R are formed into a plaster layer. Part 60 is sent. The paste layer forming unit 60 forms the paste layer 20 between the support sheet 10S and the release material sheets 31S and 32S.
  Then, the base sheet 10S, the plaster layer 20, and the release material sheets 31S and 32S are superposed in that order by the polymerization unit 70 to form the original patch sheet 1S.
  Finally, the patch 1 is punched out in multiple rows from the original patch sheet 1S by the die cutting part 80.
  Therefore, according to the patch manufacturing apparatus of this embodiment, the patch 1 can be continuously manufactured in multiple rows.
[0040]
  Below, the effect in the manufacturing apparatus of the patch of this embodiment is demonstrated.
  In the release material roll support section 50, the plurality of release material rolls 31R, 32R partially overlap each other along the axial direction of the roll support shaft. So that it is slipped and attached. For this reason, the plurality of release material sheets 31S and 32S respectively fed from the plurality of release material rolls 31R and 32R can be partially overlapped with the edges of the adjacent release material sheets 31S and 32S. Therefore, the patch 1 provided with the release material 30 in which a part of the pair of release liners 31 and 32 is overlapped by punching out a part where the edges of the adjacent release material sheets 31S and 32S are partially overlapped. Can be manufactured continuously.
[0041]
【Example】
  Next, examples of the patch will be described.
  Examples 1-3: Each composition was kneaded with a super mixer (manufactured by Kawata), and spread with a coating machine using a laminated liner and a polyurethane film knit laminated support. Thereafter, it was punched into the shape shown in FIG. 1 to obtain a patch.
  Comparative Example: Kneading was carried out in the same manner as in the Examples, and the mixture was spread using a single liner and a polyurethane knit laminated support with a coating machine, and then punched into a shape to obtain a patch.
Composition table
: Example 1: Example 2: Example 3
Polyacrylic acid: 1: 1: 1
Sodium polyacrylate: 3.6: 3.6: 3.6
Sodium carboxymethyl cellulose: 3.4: 3.4: 3.4
Kaolin: 8: 8: 8
Glycerin: 13: 13: 13
Sorbitol (70%): 24: 24: 24
Polysorbate 80: 1: 1: 1
Synthetic hydrotalcite: 0.1: 0.1: 0.1
Glycosalicylate: −: −: 1
Vitamin E: −: 0.01: 0.3
dl-camphor:-:-: 0.3
Purified water: Balance: Balance: Balance
[0042]
  Usability evaluation results
  The ease of application of the patches of Examples 1 to 3 and the patches of Comparative Examples was evaluated by the following three-stage evaluation by 20 healthy adults.
1: The example is easier to apply,
2: I can't say either
3: The comparative example is easier to apply
Evaluation results
: Example 1: Example 2: Example 3
The example is easier to apply: 19: 19: 20
I can say neither: 1: 1: 0
The comparative example is easier to apply: 0: 0: 0
  From the above evaluation results, it can be seen that the number of people who evaluated that the patch of the example was easier to apply than the patch of the comparative example was overwhelmingly large.
[0043]
【The invention's effect】
  According to invention of Claim 1, there exists the following effect.
a) Since the back surface of the overlap margin of the other release liner is superimposed on the top surface of the one release liner, the overlap margin of the other release liner can be easily picked with a finger. For this reason, other release liners can be easily and cleanly peeled off.
b) Even if another release liner is peeled off from the plaster layer, one release liner remains in the paste layer, and after the exposed portion of the paste layer is applied to the skin, the one release liner is peeled off. Since the remaining plaster layer can be pasted, the paste layers can be prevented from sticking to each other, and the patch can be easily stuck on the skin.
c) Since a support body is a skin following type | mold thin layer film, when a skin following type | mold thin layer film is affixed on skin, the followability to skin is good. Moreover, since the two overlapping portions of the release liner are combined, the overall thickness is thin and the plaster layer can be made uniform.
d) Since the support has a substantially square shape, a part of the middle part of each side part is deleted, and a recessed part recessed inside is formed, so that a gap is formed between the left and right side parts of the recessed part. For this reason, even if a patch is affixed to a bending part and this bending part is extended and bent, the support body does not become wrinkles, the followability to the skin can be improved, and peeling from the skin can be prevented.
e) Since the overlap margin of the other release liner can be formed at a place beyond the line connecting the concave portions facing each other in the support body, both end portions of the overlap margin are extended outward from the concave portion. It can be formed, and it is easy to grasp the both ends of the stacking allowance. For this reason, other release liners can be peeled cleanly from the plaster layer.
  According to the invention of claim 2, in the release material roll support portion, the plurality of release material rolls are partially separated from each other along the axial direction of the roll support shaft. It is attached so as to be polymerized. For this reason, it is possible to partially overlap the plurality of release material sheets respectively fed from the plurality of release material rolls with the edges of the adjacent release material sheets. Therefore, it is possible to continuously produce a patch including a release material in which a part of a pair of release liners is overlapped by punching out a part in which edges of adjacent release material sheets are partially overlapped. it can.
  According to the invention of claim 3, the release material liner fed from the release material roll can be cut into a plurality of liner sheets by the cutting portion. By the edge overlapping portion, a plurality of liner sheets can be partially overlapped with the edges of adjacent liner sheets to form a release material sheet. Therefore, it is possible to continuously produce a patch including a release material in which a part of a pair of release liners is overlapped by punching out a part in which edges of adjacent release material sheets are partially overlapped. it can. Further, the rotation speed of the roll support shaft can be adjusted by the speed adjusting unit so that the tension of the release material sheet becomes a constant tension. For this reason, it can prevent that a release material sheet meanders, and can keep the polymerization part between release material sheets to a fixed width..
[Brief description of the drawings]
FIG. 1 is a plan view of a patch 1 of the present embodiment.
2 is a cross-sectional view taken along line II-II in FIG.
FIGS. 3A and 3B are explanatory diagrams of use when the patch 1 of the present embodiment is attached to a bent portion, wherein FIG. 3A is an illustration when bent, and FIG.
FIG. 4 is a schematic side view of the patch production apparatus of the present embodiment.
5 is a schematic perspective view of a release material roll support portion 50. FIG.
6 is a plan view of a release material roll support 50. FIG.
7A is a sectional view taken along line VIIA-VIIA in FIG. 4, and FIG. 7B is a sectional view of FIG.
FIG. 8 is an explanatory diagram of a die cutting process.
FIG. 9 is a flowchart showing a manufacturing process by the patch manufacturing apparatus of the present embodiment.
FIG. 10 is a diagram illustrating the structure of a conventional patch.
FIG. 11 is a schematic side view of a conventional patch production apparatus.
[Explanation of symbols]
      1 Patch
    10 Support
    13 recess
    20 Plaster layer
    30 Release material
    31 Release liner
    32 Release liner
    33 edge
    34 Stacking allowance
    40 Support roll support part
    50 Release material roll support
    60 Plaster layer forming part
    70 Superposition part
    80 Die-cut part

Claims (3)

A patch in which a paste layer is formed on the upper surface of the support, and a release material is superimposed on the upper surface of the paste layer,
The support is a skin following thin layer film,
The release material comprises a pair of release liners,
A release liner is superimposed on a portion of the plaster layer;
Another release liner is superimposed on the rest of the plaster layer,
An overlap margin is formed at an inner edge of the other release liner, and a back surface of the overlap margin is overlapped with an inner edge of the surface of the one release liner,
The support is substantially square;
A part of the middle part of each side part is deleted, and a recessed part recessed inside is formed.
The one release liner is disposed such that an inner edge thereof is along a line connecting the opposing concave portions of the support,
The patch according to claim 1, wherein the overlap margin of the other release liner is disposed so as to exceed a line connecting the opposing concave portions of the support. A production apparatus for continuously producing a patch comprising a support, a paste layer and a release material,
A support roll support portion that rotatably supports a support roll for a support on which a support sheet serving as the support is wound;
A release material roll support portion that rotatably supports a release material roll for release material on which a release material sheet as the release material is wound up,
Between the support sheet fed from the support roll for the support and the release sheet fed from the release roll for the release material, a paste layer forming part for forming a paste layer,
A polymerization part that forms an original patch sheet by superimposing the support sheet, the paste layer and the release material sheet in this order;
It consists of a die cutting part for punching the patch from the original patch sheet,
The release material roll support is
A plurality of roll support shafts;
Each of the roll support shafts, a plurality of release material rolls for release material attached rotatably,
It consists of a speed adjustment unit that adjusts the rotation speed of the roll support shaft so that the feeding tension of the release material sheet is constant,
The plurality of release material rolls are attached so that the edges of the release material rolls overlap each other along the axial direction of the roll support shaft. An apparatus for producing a patch, which is characterized. A production apparatus for continuously producing a patch comprising a support, a paste layer and a release material,
A support roll support portion that rotatably supports a support roll for a support on which a support sheet serving as the support is wound;
A release material roll support portion that rotatably supports a release material roll for release material on which a release material sheet as the release material is wound up,
Between the support sheet fed from the support roll for the support and the release sheet fed from the release roll for the release material, a paste layer forming part for forming a paste layer,
A polymerization part that forms an original patch sheet by superimposing the support sheet, the paste layer and the release material sheet in this order;
It consists of a die cutting part for punching the patch from the original patch sheet,
The release material roll support is
A roll support shaft;
An exfoliating material roll which is rotatably attached to the roll support shaft;
A cutting part for cutting the release material sheet fed from the original roll for release material into a plurality of liner sheets along the traveling direction;
A plurality of liner sheets cut by the cutting part are partially overlapped with edges of adjacent liner sheets, and an edge overlapping part constituting a release material sheet,
A patch manufacturing apparatus comprising: a speed adjusting unit that adjusts a rotation speed of the roll support shaft so that a feeding tension of the release material sheet is constant .

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