JP2023070505A - Patch and folding patch - Google Patents

Abstract

To miniaturize a packaging material and a container of a patch, and thereby make it possible to reduce cost of a product.SOLUTION: A sheet-like peeling protective member 13 attached to an efficacy composition 12 on a support 11 in a peelable manner is composed of adjacent multiple divided peeling pieces 13a by using a bending gap part 13b extended in a groove shape as a boundary. Those multiple divided peeling pieces 13a are arranged in a separated state so as to be independently movable through the bending gap part 13b. Thereby, the patch 10 can be folded easily by using the bending gap part 13b as a fold, regardless of relatively strong elasticity of the peeling protective member 13a, and a plane projected area of the folding patch 1 being folded and stacked is reduced. Accordingly, the invention can miniaturize a packaging material and a container, etc.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to a patch and a foldable patch in which a sheet-like release protective member is releasably attached to an efficacy composition laminated on a support.

2. Description of the Related Art Conventionally, topical or systemic patches composed of various forms of tapes, poultices, etc. have been widely used in the fields of medicine, industry, decoration and cosmetics. For example, in the medical field, as shown in Patent Document 1 below, sheet-like patches of a certain size, such as poultice sheets, plaster sheets, heat relief sheets, etc., are used to treat bruises, bruises, stiff shoulders, and the like. are used by being attached to the skin, mucous membranes, or the like.

Such patches are usually sold and handled in a state sealed inside packaging materials or containers. A function to prevent deterioration and volatilization of the effective composition is required. Therefore, for example, as in Patent Documents 2 and 3 below, packaging materials and containers in which a protective layer made of a resin material or the like is coated on the inner surface are often used. is usually provided with a fastener for opening and closing such as a fastener (zipper).

Japanese Unexamined Patent Application Publication No. 2007-75601 Japanese Patent Application Laid-Open No. 2021-109320 JP 2021-011287 A

However, as described above, packaging materials and containers coated with a protective layer such as a resin material on the inside or equipped with a fastener for opening and closing are naturally simple and do not have a protective layer or a fastener for opening and closing. Inevitably, they are more expensive than the packaging materials and containers that comprise them, but in addition to that, in recent years, there has been an increase in demand for larger sized patches due to reasons such as efficacy and usability. ing. In addition, since larger and more expensive packaging materials and containers are used for such large-sized patches, there is a problem that the products become more expensive.

Accordingly, an object of the present invention is to provide a patch and a foldable patch that can be accommodated in a smaller packaging material or container.

In order to solve the above problems, the invention according to claim 1 provides a flexible support, an adhesive benefit composition laminated on the surface of the support, and an outer surface of the benefit composition. A patch comprising a sheet-like peeling protective member releasably attached, wherein the peeling protective member comprises a plurality of divided peeling pieces, and the plurality of divided peeling pieces form grooves. The separation protection member is configured to be foldable using the folding gap as a fold line.

According to the adhesive patch having such a configuration, the plurality of divided peeling pieces constituting the peeling protective member can be easily moved independently of each other through the bent gaps. Despite the relatively strong elasticity of the peel protection member, the entire patch, together with the flexible backing and the efficacy composition, can be easily folded at the folding crevices. Then, the folded patch formed in a superposed state by the folding operation has a planar projected area before being folded that is reduced in size by the area of the superimposed region, and the size of the folded patch is reduced. By similarly miniaturizing the expensive packaging materials and containers for containing the agent, the cost of the packaged product can be reduced.

At this time, as in the invention according to claim 2, the groove width W of the bent gap in the direction orthogonal to the extending direction of the bent gap is 2 times the thickness t of the peel protection member. It is desirable to be twice or more (W≧2t).

According to the adhesive patch having such a configuration, the efficacy composition and the backing present between the split peel pieces adjacent to each other with the folding gap as a boundary are stretched to a length when folded. Since it extends over the same or greater distance, stress due to folding does not occur in the efficacy composition and the backing, and the folding operation is performed smoothly. Since it is polymerized in a good flat shape, it does not have a shape that bulges outward.

At this time, in particular, as in the third aspect of the invention, the groove width W of the bending gap in the direction orthogonal to the extending direction of the bending gap is equal to or greater than the thickness dimension T of the patch. (W≧T) is desirable.

According to the patch having such a configuration, the divided peeling pieces adjacent to each other with the bending gap as a boundary are arranged in a state sufficiently separated from each other. When the member is folded, the split peel pieces adjacent to each other across the folding gap do not contact or interfere with each other. Since the folded patch is polymerized in a good flat shape, it does not have a shape that bulges outward.

Further, as in the invention according to claim 4, the bent gap has a groove width W in a direction perpendicular to the direction in which the bent gap extends, which is inversely proportional to the rigidity of the support. It is desirable to have

In the adhesive patch having such a structure, if the backing has a small rigidity, the flexible backing is folded with a small curvature when the folding operation is performed. The pieces are likely to come close to each other, and contact or interference between the split peel pieces is likely to occur. Since it is set large, the adjacent split peeling pieces are arranged in a state sufficiently separated from each other, contact or interference between the split peeling pieces is prevented, and the peel protection member is smoothly folded. After being folded, the patch is polymerized in a good flat shape, and does not have an outwardly bulging shape or the like.

Furthermore, as in the invention according to claim 5, the side wall surface of the groove-shaped bent gap is the end face of the split peel piece facing in the width direction orthogonal to the direction in which the bent gap extends. and the side wall surface of the bent gap forms a flank extending at an angle with respect to the thickness direction of the split peeling piece, the flank being the surface of the support. to the outer surface of the split peel piece in a direction to increase the distance between the other flank face facing in the width direction.

In the patch having such a configuration, when the peel protection member is folded with the folding gap as a fold line, the edges of the divided peeling pieces forming the side wall surfaces of the folding gap are first folded. However, in the invention according to claim 5, the side wall surface of the bent gap forms a flank surface extending at an angle, so that split peeling occurs. A greater spacing is maintained between the flanks provided on the strips. Therefore, for example, even if an attempt is made to protect or prevent the effective composition from flowing out by narrowing the groove width of the folded gap, contact and interference between the split peel pieces can be prevented, and peel protection can be achieved. The folding operation of the member is smoothly performed, and the folded patch after being folded is brought into a good polymerization state without swelling outward.

Furthermore, as in the invention according to claim 6, the split peeling piece has a cut part that extends intermittently, and the patch is temporarily fixed at the time of use by the cut part and the bending gap part. A pre-peeled portion attached to a region where the pre-peeled portion is formed, and a connecting portion that maintains the pre-peeled portion in a continuous state is provided at a midway position where the cut portion extends, and the pre-peeled portion It is possible for the portions to be separated and arranged adjacent to each other with a bent gap portion extending in the shape of a groove as a boundary.

According to the adhesive patch having such a configuration, even when the plurality of divided peeling pieces constituting the peel protection member have the pre-peeling portion having a function of temporary fixing during use, the pre-peeling portion is Since the patch is temporarily held via the connecting portion, it is possible to provide a crevice between the pre-peeling portions, and the patch can be folded without causing the pre-peeling portion to come off. will be

Further, in order to solve the above-mentioned problems, in the invention according to claim 7, the adhesive patch is folded using the folding gap according to any one of claims 1 to 6 as a crease, thereby forming a polymerized state. wherein the surfaces of the pair of split peel strips are polymerized so as to be in contact with each other, and the outer sides of the polymerized split strips are covered with the benefit composition and the support. configuration is adopted.

In the foldable patch having such a structure, the plurality of divided peeling pieces constituting the peeling protective member are separated and movable through the bending gaps, and the flexibility is improved. Since the whole peeling protective member containing the backing material and the efficacy composition is easily folded with the folding gaps as creases to form a superimposed state, the folded and superimposed state is applied to the adhesive. The patch is miniaturized by reducing its planar projected area before folding by the amount of the overlapped area. As a result, it is possible to reduce the cost of the product after it is packaged.

As described above, the patch and foldable patch according to the present invention have a sheet-like peel protection member that is detachably attached to an active composition on a backing, and a groove-like extending folding gap as a boundary. It is composed of a plurality of divided peeling pieces adjacent to each other, and the plurality of divided peeling pieces are arranged in a separated state so that they can be moved independently through the bending gap, so that the peeling protection member can be compared In spite of its strong elasticity, the entire patch can be easily folded using the folding gaps as creases, and the planar projected area of the patch folded in a polymerized state is reduced by the area of the polymerized region to reduce its size. As a result, it is possible to reduce the size of packaging materials and containers for containing the miniaturized patches, thereby making it possible to reduce the cost of packaged products.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an external perspective explanatory view showing a folded patch formed by folding and polymerizing the patch according to the first embodiment of the present invention for packaging. FIG. 2 is an explanatory plan view of the folding patch shown in FIG. 1; FIG. 3 is an explanatory plan view showing a state in which the folded patch shown in FIGS. 1 and 2 is unfolded in a plane. 4 is a partial cross-sectional explanatory view taken along line IV-IV in FIG. 3; FIG. FIG. 5 is a partial cross-sectional explanatory view corresponding to FIG. 4 showing the process of folding the patch in the unfolded state shown in FIG. 3; FIG. 6 is a partial cross-sectional explanatory view corresponding to FIG. 4 , showing a superposed state after completing the folding operation of the patch halfway through folding shown in FIG. 5 ; FIG. 5 is a partial cross-sectional explanatory view corresponding to FIG. 4 of the patch according to the second embodiment of the present invention; FIG. 8 is a partial cross-sectional explanatory view corresponding to FIG. 5 showing the intermediate process of folding the patch shown in FIG. 7; FIG. 9 is a partial cross-sectional explanatory view corresponding to FIG. 6 showing a superposed state after completing the folding operation of the patch in the middle of folding shown in FIG. 8 ; FIG. 11 is a plane explanatory view showing a planar developed state of the patch according to the third embodiment of the present invention. FIG. 11 is a plane explanatory view showing a plane developed state of the patch according to the fourth embodiment of the present invention. FIG. 11 is a plane explanatory view showing a planar developed state of the patch according to the fifth embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION A patch and a foldable patch according to embodiments of the present invention will be described in detail below with reference to the drawings.

The folding patch 1 according to the first embodiment shown in FIGS. 1 and 2 has a substantially rectangular planar patch 10 shown in FIG. direction), and the two halves of the patch 10 in the longitudinal direction, which have been unfolded in a plane, are double overlapped so as to form the same outline shape. , the projected area in plan view is reduced to about half the size.

The patch 10 and the foldable patch 1 at this time are composed of a laminate of a plurality of members, and particularly as shown in FIG. On one surface (upper surface in FIG. 4) is laminated a beneficial composition 12 consisting of a drug having adhesiveness, and on the outer surface of the beneficial composition 12 is a sheet-like release protective member (release sheet ) 13 is releasably attached.

The support 11 described above is made of a material such as a film-shaped resin material, nonwoven fabric, knitted fabric, cotton fabric, Japanese paper, or a laminate thereof, and a material composed of a porous material having a fine uneven surface is adopted. In this case, part of the benefit composition 12 adheres to the support 11 in such a state that it penetrates into the unevenness of the finely uneven surface of the support 11 , thereby preventing the benefit composition 12 in a soft state from peeling off from the support 11 . spliced. As the support 11, the effective composition 12 permeates into the support 11 and retains the effective composition 12 well, for example, non-woven fabric or woven fabric using various synthetic fibers and natural fibers. A fiber aggregate, a fiber aggregate such as paper, etc. is preferably used. Further, the backing 11 is desirably a structure having stretchability. It is possible to apply the patch 10 in a stretchable manner. In addition, the patch 10 can be stably used without being peeled off from the human body.

In addition, the efficacy composition 12 contains a drug such as an analgesic anti-inflammatory agent that is effective on the skin, or a drug that can be absorbed through the skin such as a coronary vasodilator, in a base material such as a carrier or an adhesive. and a moisturizer or the like is used as necessary.

Furthermore, the peel protection member (release sheet) 13 forming the outermost layer protects the surface of the adhesive efficacy composition 12 by covering the surface of the efficacy composition 12 from the outside. It is adapted to be peeled off and removed from the surface of composition 12 . As the peel protection member 13, for example, a film made of polypropylene, a film made of polyethylene, a film made of polyester, a film made of other plastics, a film made of paper, etc., which can protect the surface of the efficacy composition 12 during storage. A material that has sufficient mechanical strength and can be easily peeled off from the surface of the benefit composition 12 during use is used.

Here, the peel protection member 13 described above is composed of a plurality of divided peel pieces 13a arranged side by side in the longitudinal direction of the patch 10 (horizontal direction in FIG. 3). The split strips 13a, 13a are arranged so as to be adjacent to each other with a bending gap 13b arranged substantially in the center in the longitudinal direction (horizontal direction in FIG. 3) as a boundary.

The above-described bending gap portion 13b is formed from an elongated groove-shaped space portion formed by two split peeling pieces 13a, 13a facing each other. direction) in a straight line. Particularly, as shown in FIG. 4, the folded gap 13b has a substantially rectangular cross-section, and forms a recessed groove with the beneficial composition 12 as the bottom wall.

The side wall surfaces of the bent gap 13b having the concave groove shape are formed by the end surfaces 13c, 13c of the two divided peeling pieces 13a, 13a. Both side wall surfaces of the folded gap 13b are formed by arranging the 13c, 13c to face each other with an appropriate distance in the longitudinal direction of the patch 10 (horizontal direction in FIG. 3). The end face 13c of the divided peeling piece 13a forming the side wall surface of the bent gap 13b in this embodiment corresponds to the surface of the beneficial composition 12 (see FIG. 4) forming the bottom wall surface of the bent gap 13b. It is made into an upright wall that rises almost vertically from the upper surface).

Folded gap 13b having such a configuration extends in a direction perpendicular to the lateral direction (vertical direction in FIG. 3) of patch 10, that is, the direction in which patch 10 extends. The groove width W of the folded gap 13b is equal to or greater than the thickness T of the patch 10, that is, the patch 10 The dimension is set to be approximately equal to or slightly larger than the thickness T of the (W≧T). In particular, in this embodiment, the groove width W of the bending gap 13 has a size inversely proportional to the rigidity of the support 11 , that is, the rigidity of the support 11 .

Here, as shown in FIGS. 5 and 6 to be described later, the divided peeling pieces 13a, 13a of the peeling protection member 13 are folded in half in the longitudinal direction (horizontal direction in FIG. 3) using the folding gap 13b as a crease. As it is folded, the beneficial composition 12 and the backing 11 covering the outer side of the peel protection member 13 are stretched to form a substantially arcuate cross-section at the folding line. do. Therefore, if the bending gap 13b having the groove width W as described above is provided as a margin for stretching at the time of bending, the portion between the adjacent split peeling pieces 13a, 13a with the bending gap 13b as a boundary can be formed. The benefit composition 12 and backing 11 present in the body extend over a distance equal to or greater than the length to be stretched during folding, so that the benefit composition 12 and backing 11 extend to the length required when folded. Since there is a margin in the thickness, the stretching action associated with bending is reduced and unnecessary stress is not generated.

More specifically, when the thickness of the split peel piece 13a of the peel protection member 13 is t (see FIG. 6), the length by which the beneficial composition 12 and the backing 11 are stretched when folded is the peel thickness. Since the thickness is 2t (see FIG. 6) when the divided peeling pieces 13a, 13a of the protective member 13 are folded and superimposed, the groove width W of the bending gap 13 is at least It is necessary to set the thickness to be equal to or larger than the overlapping thickness 2t (see FIG. 6) of the peel protection member 13, that is, twice the thickness t (2t) of the peel protection member 13 (W≧2t). .

On the other hand, as will be described later, when the peel protection member 13 is folded using the folding gap 13b as a crease, contact or interference between the end faces 13c, 13c of the split peel pieces 13a, 13a can be avoided. necessary. When the adhesive patch 10 is actually folded to confirm this point, if the backing 11 has normal rigidity, the above-mentioned dimensional relationship (W≧T) is set to satisfy the stretching margin. It has been found that it is preferable to provide a margin for avoiding contact or interference between the end faces 13c, 13c of the split strips 13a, 13a.

In addition, when actually forming the above-described bending gap 13b, it is desirable to be able to arbitrarily adjust the groove width W of the bending gap 13b. When forming the gap 13b, the groove width W of the bent gap 13b can be arbitrarily and easily adjusted by making it possible to appropriately change the gap between the pair of blades used for the slitting process. can do.

Here, as described above, each peel protection member (release sheet) 13 is peeled off and removed from the surface of the beneficial composition 12 at the time of use. The peel protection member 13 is sequentially peeled off from the end face 13c of the bent gap 13b by hooking the user's fingernail on the end face 13c of the bent gap 13b. Therefore, in the present embodiment, a bending line 13d extending in the lateral direction (vertical direction in FIG. 3) along the bending gap 13b is formed near the bending gap 13b to be peeled off first. It is The bending lines 13d are composed of so-called perforations or the like, in which sets of cuts and connecting portions are alternately continued over a large number of sets.

That is, as described above, the peel protection member 13, which was first peeled off with the end face 13c of the bent gap 13b as a starting point, is partially peeled off over a certain amount, and then is bent to the bending line (perforation) 13d. is bent as a valley fold, and a belt-like portion extending from the bending line 13d to the bending gap 13b is plastically deformed so as to be kept open to the outside. Then, the effective composition 12 exposed in the band-shaped open portion of the peeling protective member 13 is temporarily attached to the skin, mucous membrane, or the like, and the entire peeling protective member 13 is peeled off from the temporarily held state. While sticking operation is stably performed.

The adhesive patch 10 according to the present embodiment having such a configuration has a groove-like folding gap 13b extending substantially in the center of the longitudinal direction of the adhesive patch 10 (horizontal direction in FIG. 3). For example, as shown in FIG. 5, the folding operation of the patch 10 is started by lifting one half of the patch 10 (the right part in FIG. 5) by an appropriate means. At this time, the lifting operation requires an extremely small operating force because the folding gap 13b, which consists of the elongated groove-like space, is used as a crease, and the support 11 and the efficacy composition 12 are made of a material having flexibility. Folding is performed at .

Then, when one half of the patch 10 (the right part in FIG. 5) of the patch 10 is folded past the vertically raised state, the one half of the patch 10 becomes its own The weight causes it to collapse onto the other half (left part in FIG. 5) and overlap it into a folded and overlapped state as shown in FIG.

In the adhesive patch 10 according to the present embodiment, the plurality (two pieces) of split peel pieces 13a and 13a constituting the peel protection member 13 can move independently through the bent gap portion 13b. Since the peeling protection member 13 is in a separated state as described above, the peeling protection member 13 can be easily folded regardless of the relatively strong elasticity of the peeling protection member 13 . On the other hand, since the backing 11 and the efficacy composition 12 are usually made of a soft material having flexibility, the entire patch 10 including the backing 11 and the efficacy composition 12 is also folded. It can be easily folded using the crevice 13 as a crease.

Then, the entire patch 10 is folded at the crease 13 so that the split peeling pieces 13a, 13a are in contact with each other as shown in FIG. 6, for example, to form the folded patch 1. In this foldable patch 1, the planar projected area of the patch 10 before being folded is reduced to about half the size of the area of the overlapping regions, and the size is reduced to about half. By similarly miniaturizing the packaging material and container for containing the folded patch 1, which has been further miniaturized, the cost of the product after being packaged has been reduced.

The folding operation of the adhesive patch 10 in the present embodiment is performed in the direction in which the split peel pieces 13a, 13a constituting the peel protection member 13 come into direct contact with each other, that is, in the direction in which the peel protection member 13 is valley-folded. The efficacy composition 12 covers the outer side of the pair of split peel pieces 13a, 13a superimposed by the folding operation, and the outer side of the efficacy composition 12 is further covered by the support 11. there is As a result, in the folded patch 1, the backing 11 forms the outermost surface.

On the other hand, contrary to the folding operation as described above, the peel protection member 13 is formed by folding in the direction in which the surfaces of the support 11 contact each other, that is, in the direction in which the peel protection member 13 is mountain-folded. It is also possible for the divided peeling pieces 13a, 13a formed on the folded patch 1 to constitute the outer surface of the folded patch 1. As shown in FIG. However, in that case, since a part of the beneficial composition 12 is exposed to the outside through the opening of the folded gap 13b, it is necessary to arrange a member to cover the exposed part from the outside.

Here, in the folded gap portion 13b in the present embodiment, the groove width W of the groove forming the folded gap portion 13b is substantially equal to or slightly larger than the thickness dimension T of the patch 10. Since (W≧T), a pair of split peeling pieces 13a, 13a adjacent to each other with the bent gap 13b as a boundary are arranged in a state sufficiently separated from each other. Therefore, when the peel protection member 13 is folded with the folding gap 13b as a fold line, the active composition 12 and the support 11 at the fold line are not stretched, and the folding gap 13b is used as a boundary. Therefore, the peeling protective member 13 can be smoothly folded because the adjacent split peeling pieces 13a, 13a do not contact or interfere with each other. In addition, since the folded patch 1 after being folded is polymerized in a good flat shape, it does not bulge outward.

In this way, when the peeling protective member 13 is folded using the folding gap 13b of the peeling protective member 13 as a fold line, the adhesive patch 10 is folded when the backing 11 has low rigidity and is flexible. At this time, since the crease portion of the flexible support 11 is bent with a relatively small curvature, the adjacent split strips 13a, 13a tend to come close to each other, and the split strips 13a, 13a adjacent to each other tend to come close to each other. Easy to contact or interfere. However, in the present embodiment, since the groove width W of the bent gap portion 13b is set to be large in inverse proportion to the rigidity of the support 11, the adjacent split peel pieces 13a, 13a are sufficiently separated from each other. As a result, the split peel pieces 13a, 13a are prevented from contacting or interfering with each other, the peel protective member 13 is smoothly folded, and the folded patch 1 after being folded expands outward. A good state of polymerization is achieved without

Next, in the peel protection member 23 of the patch 20 according to the second embodiment of the present invention shown in FIG. A pair of split peeling pieces 23a, 23a are arranged adjacent to each other with a groove-like bent gap portion 23b interposed therebetween. They respectively constitute the side wall surfaces of the gap 23b.

Both side wall surfaces of the bent gap portion 23b, that is, opposite end surfaces 23c, 23c of the divided peeling pieces 23a, 23a are arranged in a direction inclined with respect to the thickness direction (the vertical direction in FIG. 7) of the divided peeling pieces 23a. It forms an extended "flank". More specifically, the cross-sectional shape of the bent gap portion 23b is such that the groove width of the bent gap portion 23b extends in the outward direction from the surface of the support 21 toward the outer surface of the split peeling piece 23c (Fig. The end face 23c of each split strip 23a forming the above-mentioned "flank" extends in the groove width direction (right and left in FIG. 7). direction), i.e., the distance between the end face 23c of the other adjacent split peel piece 23a, is continuously increased along the outward direction (upward direction in FIG. 7). It extends to the state of letting

Therefore, in the bent gap 23b in this embodiment, the groove width W1 of the opening in the lower part of FIG. The opening directed upward in FIG. 7, ie, outward, has a wider groove width W2. The "flank" that constitutes such an opening shape effectively prevents contact and interference between the split peeling pieces 23a and 23a when the peeling protection member 23 is folded with the folding gap 23b as a crease. designed to avoid.

That is, as shown in FIG. 8, when the entire patch 20 including the peel protection member 23 is folded inward using the folding gap 23b as a fold line of the valley fold, the folding gap 23 The edges 23c, 23c of the split strips 23a, 23a constituting the side wall surfaces of the upper part of the drawing first approach each other, and contact and interference between these edges becomes a problem. In response to such a situation, in the present embodiment, as described above, the end faces 23c, 23c of the split peeling pieces 23a, 23a forming the side wall faces of the bent gap portion 23b extend obliquely. A sufficient space is maintained between the "flanks" provided on the split peel pieces 23a, 23a. As a result, the split peel pieces 23a, 23a are prevented from contacting or interfering with each other, so that the peel protection member 23 can be smoothly folded, and as shown in FIG. is brought into a good state of polymerization without swelling outwards.

In particular, by narrowing the groove width W1 at the opening in the lower part of FIG. Since the opening directed outward in FIG. Since contact and interference are avoided, the peeling protection member 23 can be folded smoothly.

On the other hand, each of the peel protection members 33, 43 and 53 in the patches according to the third, fourth and fifth embodiments shown in FIGS. , 33a), (43a, 43a) and (53a, 53a), respectively. They are separated and arranged adjacent to each other in the longitudinal direction (horizontal direction in the drawing) with the bending gaps 33b, 43b, and 53b arranged at substantially central positions in the longitudinal direction (horizontal direction in the drawing) as boundaries.

The split peel pieces 33a, 43a, and 53a constituting the peel protection members 33, 43, and 53 are intermittently linear and curved along the lateral direction (the vertical direction in the drawing) of the patch. Each of the cut portions 33d, 43d and 53d and the bending gap portions 33b, 43b and 53b are used as boundaries of the patch. Pre-peeling portions 33e, 43e, and 53e are respectively formed to extend in a strip shape along the width direction (vertical direction in the drawing).

As is well known, the pre-peeling portions 33e, 43e, and 53e described above are partially peeled off at the beginning of use of the patch and temporarily attached to the skin, and the entire patch is temporarily attached. It has a function that facilitates use by The cut portions 33d, 43d, and 53d forming the pre-peeled portions 33e, 43e, and 53e in the present embodiment are provided at intermediate positions along which the cut portions 33d, 43d, and 53d extend. 53f, respectively.

These continuous portions 33f, 43f and 53f connect the above-described pre-peeling portions 33e, 43e and 53e to the peeling protection members 33, 43 and 53 so as not to fall off. For example, the length of the joints is adjusted appropriately so as to provide a joint force that does not hinder the operation of peeling off the pre-peeled portions 33e, 43e, and 53e when the patch is used.

Each of the pair of pre-peeling portions 33e, 33e, 43e, 43e and 53e, 53e having such a configuration extends in the longitudinal direction of the adhesive patch (Fig. left-to-right direction). The bending gaps 33b, 43b, and 53b at this time have the same configuration as the bending gaps 13b, 23b in the above-described embodiment, so detailed description thereof will be omitted.

Thus, in the third, fourth, and fifth embodiments, the split peel pieces 33a, 43a, and 53a constituting the peel protection members 33, 43, and 53 are pre-peeled portions that are temporarily fixed during use. 33e, 43e and 53e, and the pre-peeled portions 33e, 43e and 53e are temporarily held by an appropriate connecting force via continuous portions 33f, 43f and 53f. Therefore, even if the pre-peeled portions 33e, 43e, and 53e are provided with the bent gap portions 33b, 43b, and 53b as the cutting portions extending in the shape of grooves, the pre-peeled portions 33e, 43e, and 53e do not come off and are temporarily removed. Since the holding state is maintained, the operation of folding the patch can be performed well through the folding gaps 33b, 43b, and 53b, as in each of the above-described embodiments.

Although the invention made by the present inventor has been specifically described based on the embodiments, the present embodiments are not limited to the above-described embodiments, and can be variously modified without departing from the gist thereof. It goes without saying.

For example, in each of the above-described embodiments, the pair of separated peeling pieces that constitute the peeling protective member are configured to completely overlap each other in the folded state. It is also possible to

In addition, the peel protection member in each of the above-described embodiments is composed of a pair of split peel pieces obtained by dividing the peel protection member into two pieces. It is also possible to

Furthermore, in each of the above-described embodiments, a drug is employed as an efficacy composition. It should be appreciated that any benefit composition that functions usefully in the application of

As described above, the present invention can be widely applied to various patches.

1 Foldable patches 10, 20 Patches 11, 21 Backings 12, 22 Effective compositions 13, 23 Peel protection members 13a, 23a Divided peel pieces 13b, 23b Folding gaps 13c, 23c End faces 13d Fold lines (perforations)
W Groove width of bending gap T Thickness dimension of patch 30, 40, 50 Patch 33, 43, 53 Peel protection member 33a, 43a, 53a Divided peeling piece 33b, 43b, 53b Folding gap 33c, 43c , 53c end face 33d, 43d, 53d cut portion 33e, 43e, 53e pre-separation portion 33f, 43f, 53f continuous portion

In order to solve the above problems, the invention according to claim 1 provides a flexible support, an adhesive benefit composition laminated on the surface of the support, and an outer surface of the benefit composition. A patch that is housed in a packaging material or a container, comprising a sheet-like peeling protective member that is releasably attached, wherein the peeling protective member is composed of a plurality of divided peeling strips, The peeling pieces are separated and arranged adjacent to each other with a groove-like bent gap as a boundary . The patch, which is in a superimposed state in which adjacent split peel pieces are in contact with each other, is configured to be accommodated in the packaging material or container.

According to the adhesive patch having such a configuration, the plurality of divided peeling pieces constituting the peeling protective member can be easily moved independently of each other through the bent gaps. Despite the relatively strong elasticity of the peel protection member, the entire patch, together with the flexible backing and the efficacy composition, can be easily folded at the folding crevices. Then, the folded patch formed in a superposed state by the folding operation has a planar projected area before being folded that is reduced in size by the area of the superimposed region, and the size of the folded patch is reduced. By similarly miniaturizing expensive packaging materials and containers for containing agents, it is possible to reduce the cost of products after they are contained in the packaging materials and containers .

At this time, as in the invention according to claim 2, the patch is accommodated in the packaging material or container that is reduced in size by the planar projected area of the patch that is reduced by being folded into a superposed state. It is desirable to configure

According to the adhesive patch having such a configuration, the cost of the product can be reduced by the reduction in size of the packaging material and container.

Further, as in the invention according to claim 4 , the side wall surface of the groove-shaped bent gap is the end face of the split peel piece facing in the width direction orthogonal to the direction in which the bent gap extends. and the side wall surface of the bent gap forms a flank extending at an angle with respect to the thickness direction of the split peeling piece, the flank being the surface of the support. to the outer surface of the split peel piece in a direction to increase the distance between the other flank face facing in the width direction.

Furthermore, as in the invention according to claim 5 , the split peeling piece has a cut portion extending intermittently, and the patch is temporarily fixed during use by the cut portion and the folded gap. A pre-peeled portion attached to a region where the pre-peeled portion is formed, and a connecting portion that maintains the pre-peeled portion in a continuous state is provided at a midway position where the cut portion extends, and the pre-peeled portion It is possible for the portions to be separated and arranged adjacent to each other with a bent gap portion extending in the shape of a groove as a boundary.

Further, in order to solve the above-mentioned problems, in the invention according to claim 6 , the adhesive patch is folded using the folding gaps according to any one of claims 1 to 5 as creases to form a polymerized state. wherein the surfaces of the pair of split peel strips are polymerized so as to be in contact with each other, and the outer sides of the polymerized split strips are covered with the benefit composition and the support. configuration is adopted.

In the foldable patch having such a structure, the plurality of divided peeling pieces constituting the peeling protective member are separated and movable through the bending gaps, and the flexibility is improved. Since the whole peeling protective member containing the backing material and the efficacy composition is easily folded with the folding gaps as creases to form a superimposed state, the folded and superimposed state is applied to the adhesive. The patch is miniaturized by reducing its planar projected area before folding by the amount of the overlapped area. As a result, it is possible to reduce the cost of the product after being housed in the packaging material or container .
Furthermore, in the invention according to claim 7, a configuration is adopted in which the patch according to any one of claims 1 to 5 or the foldable patch according to claim 6 is contained in the packaging material or container. It is
According to the patch or the foldable patch having such a configuration, the packaging material or container containing the patch folded in a polymerized state is made smaller by the size of the folded patch, thereby reducing the cost of the product. is planned.

As described above, the patch and the foldable patch to be housed in the packaging material or container according to the present invention are a sheet-shaped release protective member that is detachably attached to the efficacy composition on the backing, and which is formed into grooves. It is composed of a plurality of divided peeling pieces adjacent to each other with an extending bent gap as a boundary, and the plurality of divided peeled pieces are arranged in a separated state so as to be independently movable through the bent gap. As a result, despite the relatively strong elasticity of the peel protection member, the entire patch can be easily folded using the folding gaps as creases and accommodated in a packaging material or container , and the folded patch can be folded into a superposed state. By reducing the planar projected area by the area of the superimposed area to reduce the size, it is possible to similarly reduce the size of the packaging material and container for containing the reduced-sized patch. Later products can be made cheaper.

Accordingly, an object of the present invention is to provide a patch and a foldable patch that can be accommodated in a smaller packaging material .

In order to solve the above problems, the invention according to claim 1 provides an efficacy composition comprising a support comprising a flexible stretchable structure and an adhesive drug laminated on the surface of the support. and a sheet -like peeling protection member made of a plastic film having a mechanical strength capable of protecting the efficacy composition, which is detachably adhered to the outer surface of the efficacy composition, and housed in a packaging material. In the single patch, the peel protection member is composed of a plurality of divided peeling pieces, and the plurality of divided peeling pieces are adjacent to each other with a groove-shaped extending bent gap as a boundary. The folded gap has a groove width W in a direction perpendicular to the extending direction of the folded gap that is equal to or greater than the thickness T of the patch (W≧T). , the single adhesive patch in which the peel protection member is folded with the folding gap as a valley fold so that the adjacent split peel pieces are in direct contact with each other to form a flat superimposed state. is configured to be accommodated in the packaging material .

According to the adhesive patch having such a configuration, the plurality of divided peeling pieces constituting the peel protection member made of the plastic film in the single patch can be easily separated from each other through the folded gap. Therefore, regardless of the relatively strong elasticity of the peel protection member made of a plastic film , the effective composition consisting of a support made of a flexible and stretchable structure and a drug The patch as a whole together with the object is easily folded flat with the crevices between folds as valley -fold folds and in a valley-fold state in which the efficacy composition as a drug is not exposed to the outside .
In particular, according to the patch having such a configuration, the split peel pieces adjacent to each other with the bending gap as a boundary are arranged in a state sufficiently separated from each other, so that the bending gap can be valley-folded. When the peel protection member is folded at the crease, the split peel pieces adjacent to each other on the boundary of the folding gap do not contact or interfere with each other, and the folding operation of the peel protection member is performed more smoothly. Since the folded patch after being folded is polymerized in a good flat shape, it does not bulge outward.
Then, the unitary folded patch formed by the folding operation into a flat superimposed state is miniaturized by reducing the planar projected area before folding by the area of the superimposed region. By similarly miniaturizing an expensive packaging material for containing a miniaturized single patch, the cost of the product after the single patch is stored in the packaging material can be reduced.

At this time, as in the invention according to claim 2, the single patch is attached to the packaging material that is reduced in size by the planar projected area of the single patch that is reduced by being folded into a flat superimposed state. It is desirable to have a configuration in which the agent is accommodated.

According to the patch having such a configuration, the cost of the product in which a single patch is housed in the packaging material can be reduced by the amount of reduction in size of the packaging material .

Furthermore, as in the invention according to claim 3 , the side wall surface of the groove-shaped bent gap is the end face of the split peel piece facing in the width direction orthogonal to the direction in which the bent gap extends. and the side wall surface of the bent gap forms a flank extending at an angle with respect to the thickness direction of the split peeling piece, the flank being the surface of the support. to the outer surface of the split peel piece in a direction to increase the distance between the other flank face facing in the width direction.

Furthermore, as in the invention according to claim 4 , the split peeling piece has a cut part that extends intermittently, and the patch is temporarily fixed at the time of use by the cut part and the bending gap part. A pre-peeled portion attached to a region where the pre-peeled portion is formed, and a connecting portion that maintains the pre-peeled portion in a continuous state is provided at a midway position where the cut portion extends, and the pre-peeled portion It is possible for the portions to be separated and arranged adjacent to each other with a bent gap portion extending in the shape of a groove as a boundary.

Further, in order to solve the above-mentioned problems, in the invention according to claim 5 , the single patch is folded using the folding gap according to any one of claims 1 to 4 as a crease line for valley folds. , wherein the surfaces of the pair of split strips are in direct contact with each other and are superimposed into a flat state, and the split strips are superimposed into a flat shape. is covered with the beneficial composition and the support.

In the foldable patch having such a configuration, the plurality of divided peeling pieces constituting the peel protection member of the single patch are separated and movable through the folding gap. The entire peeling protective member containing the support consisting of a flexible and stretchable structure and the efficacy composition consisting of the drug can be easily folded at the crevice and the efficacy composition as the drug can be easily removed. Since it is folded in a valley- folded state that does not expose to the side and is in a flat superimposed state, a single patch that is folded into a flat superimposed state has a planar projected area before folding. , is reduced in size by the area of the superimposed one, and the packaging material for containing such a miniaturized single patch can also be downsized in the same way. It is possible to reduce the cost of the product after the patch is contained in the packaging material.
Further, in the invention according to claim 6 , the single patch according to any one of claims 1 to 4 or the single foldable patch according to claim 5 is contained in the packaging material. is adopted.
According to a single patch or a single folded patch having such a configuration, the packaging material containing the single patch folded into a flat polymerized state is reduced in size by the amount of the folded patch. By doing so , it is possible to reduce the cost of products in which a single patch is contained in a packaging material .

As described above, the single patch and the single foldable patch contained in the packaging material according to the present invention are releasably attached to the efficacy composition comprising the drug on the support made of the stretchable structure. A sheet -like peeling protective member made of a plastic film is composed of a plurality of divided peeling pieces that are adjacent to each other with a bent gap extending in a groove as a boundary, and the plurality of divided peeling pieces are connected to the bent gap. By arranging it in a separated state so that it can be moved independently via the, despite the relatively strong elasticity of the peeling protection member, the folding gap can be used as a valley fold from the elastic structure The entire patch including the support can be easily folded into a flat shape in a valley-folded state that does not expose the efficacy composition comprising the drug to the outside, and can be accommodated in the packaging material, and folded into a flat superimposed state. However, by reducing the planar projected area of the patch by the area of the overlapping area, it is possible to similarly reduce the size of the packaging material for containing the miniaturized single patch. , it is possible to reduce the cost of the product after the single patch is packaged.

On the other hand, contrary to the folding operation as described above, the peel protection member 13 is formed by folding in the direction in which the surfaces of the support 11 contact each other, that is, in the direction in which the peel protection member 13 is mountain-folded. When the divided peeling pieces 13a, 13a forming the outer surface of the folded patch 1, part of the active composition 12 is exposed to the outside through the opening of the folded gap 13b. Therefore, it is necessary to dispose a member that covers the exposed portion from the outside.

Claims (7)

It comprises a flexible support, an adhesive benefit composition laminated on the surface of the support, and a sheet-like peeling protective member releasably adhered to the outer surface of the benefit composition. In the adhesive patch,
The peel protection member is composed of a plurality of divided peel pieces,
The plurality of divided peeling pieces are separated and arranged in a state of being adjacent to each other with a groove-shaped extending bending gap as a boundary,
The adhesive patch, wherein the peel protection member is configured to be foldable using the folding gap as a fold line. The bent gap has a groove width W in a direction perpendicular to the direction in which the bent gap extends, which is at least twice the thickness t of the peel protection member (W≧2t). The patch according to claim 1. 2. The bending gap has a groove width W in a direction perpendicular to the direction in which the bending gap extends, which is equal to or greater than the thickness T of the adhesive patch (W≧T). The described patch. 2. A groove width W of said bending gap in a direction perpendicular to the extending direction of said bending gap has a size inversely proportional to the rigidity of said support. patch. The side wall surface of the groove-shaped bent gap is constituted by the end face of the split peel piece facing the width direction orthogonal to the direction in which the bent gap extends,
A side wall surface of the bent gap forms a flank surface that extends obliquely with respect to the thickness direction of the split peel piece,
The flank extends in a direction that increases the distance between the flank and the other flank facing in the width direction in a direction from the surface of the support toward the outer surface of the split peel piece. The patch according to claim 1, characterized by the above. The split peel piece has a cut part extending intermittently, and the cut part and the bending gap part form a pre-peeling part attached to a region where the patch is temporarily fixed during use. is a thing,
A connecting portion that maintains the pre-peeling portion in a continuous state is provided at a midway position where the cut portion extends,
2. The adhesive patch according to claim 1, wherein the pre-peeling portions are arranged so as to be adjacent to each other with a groove-like extending bent gap as a boundary. The adhesive patch is folded using the folding gap according to any one of claims 1 to 6 as a crease, and the patch is folded to form a polymerized state,
The surfaces of the pair of split peel strips are polymerized so as to be in contact with each other, and the outer sides of the polymerized split strips are covered with the efficacy composition and the support. A folding patch.

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