JP2017209403A - Adhesive film dressing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an adhesive film dressing with excellent sticking workability.SOLUTION: An adhesive film dressing includes an adhesive layer and a release liner on the adhesive layer on one surface of a film base material, and a supporting body on the other surface of the film base material. The adhesive film dressing has a plurality of through-holes that are regularly arranged. The release liner and the supporting body respectively have slits which are not overlapped with each other and are in a positional relationship of parallel displacement when being projected on the same plane. A position of the slit the release liner and the supporting body have is not overlapped with a position of the through-hole.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a pressure-sensitive adhesive film dressing excellent in application workability.

  An adhesive film dressing widely used for wound covering that protects an affected part such as a wound part of a body generally has a configuration in which an adhesive layer and a release liner are laminated on one surface of a film substrate.

  In order to eliminate the uncomfortable feeling at the time of skin application, and to improve the followability to the wound part, it is common to use a thin film substrate for the film substrate that such an adhesive film dressing has. Is. However, when a thin film substrate is used, it is difficult to handle the adhesive film dressing itself, and in particular, when the release liner is peeled off from the adhesive surface provided with the adhesive layer, the adhesive surface of the adhesive film dressing (adhesive) There is a problem that the surface having the agent layer is easy to attach, and the pasting work is complicated.

  As means for solving such a problem, there is known an adhesive film dressing in which process paper is laminated on a surface opposite to a sticking surface of a film substrate (Patent Document 1). By laminating such process papers, the overall rigidity is improved and the handling property of the adhesive film dressing is improved, but the process papers need to be peeled off from the end after being attached to the affected area. The peeling allowance at this time had to be made by the operator himself / herself at the end of the adhesive film dressing, and the work was complicated, and there was a problem that the wound was burdened.

  There is an adhesive film dressing in which a first adhesive layer and release paper and a second adhesive layer and release paper are sequentially laminated on one side of the film substrate, and a carrier film is laminated on the other side so as to be peelable from the substrate. Known (Patent Document 2). This adhesive film dressing first peels off the second release paper, exposes the second adhesive layer, temporarily adheres to the operator's gloves, etc. When the paper is peeled, the first adhesive layer is exposed and a dressing material is applied to the affected area. However, when the first second release paper is peeled off from the edge, it is different from the expected peeling site. There was a case where it peeled off from the place and the pasting work did not work.

  Adhesive film having a linear fragile portion (slit) for separating the adhesive film dressing into a pasting portion and a non-sticking portion, and having a linear fragile portion for peeling the release liner at a portion corresponding to the sticking portion of the release liner Dressing is known (Patent Document 3). This adhesive film dressing peels off the release liner from the line weakened area for peeling the release liner, holds the non-adhered part, and then sticks it to the non-adhered part. A part is cut off and used.

  On the other hand, a protective film member having adhesive layers on both surfaces of a film substrate and having a plurality of through holes penetrating these three layers, and a medical protective film material in which a release liner is attached to each adhesive layer are known. (Patent Document 4). In this document, the above-mentioned through-hole is used to allow the exudate to pass through when the absorbent absorbs the exudate, but in general, the through-opening means that the wound part is compressed by the exudate. While preventing, it is possible to maintain a moderate moist environment and it is preferably used also for the purpose of promoting healing of a wound part.

  However, since the strength of the film substrate itself is reduced by a plurality of through-holes, the adhesion between the adhesive layers is particularly remarkable when peeling the release liner, so the pasting operation is extremely complicated and improvement is required. It was done.

JP 08-154965 A JP 2014-104055 A Japanese Patent Laid-Open No. 06-202 JP, 2006-22223, A

  Provided is an adhesive film dressing having good pasting workability even if it has a plurality of through holes.

(1) An adhesive film dressing having a pressure-sensitive adhesive layer on one side of a film base and a release liner on the pressure-sensitive adhesive layer, and having a support on the other side of the film base, The pressure-sensitive adhesive film dressing has a plurality of through holes that are regularly arranged to penetrate from the release liner to the support, and the release liner and the support do not overlap each other when projected on the same plane, and A pressure-sensitive adhesive film dressing having slits in a positional relationship of parallel movement, wherein the positions of the slits of the release liner and the support do not overlap with the positions of the through holes.

  By this invention, the adhesive film dressing which has favorable sticking workability | operativity can be obtained.

Schematic when the adhesive film dressing of the present invention is viewed from the support side Schematic cross-sectional view along the line AB of the adhesive film dressing of FIG. Schematic when the arrangement pattern of the through holes is seen from the support side Slit layout when slits on support and release liner are projected on the same plane Arrangement of different slits when the slits on the support and release liner are projected on the same plane Arrangement of another slit when the slit provided on the support and release liner is projected on the same plane

  Hereinafter, the present invention will be described in detail.

  The pressure-sensitive adhesive film dressing of the present invention has a pressure-sensitive adhesive layer on one surface of a film substrate and a release liner on the pressure-sensitive adhesive layer, and a support on the other surface of the film substrate.

  The film substrate of the adhesive film dressing of the present invention preferably has a thickness of 5 to 150 μm, from the viewpoint of eliminating the uncomfortable feeling at the time of skin application, and from the viewpoint of followability to the wound part, and is 7 to 75 μm. More preferably. In addition, it is preferable that the film substrate has transparency because the operation can be performed while confirming the attachment location. As a material constituting such a film substrate, polyurethane, polyolefin, polyvinyl chloride, polyvinylidene chloride, polyvinyl alcohol, polyacrylate, polysulfone, polystyrene, polyethylene, polypropylene, polyamide, ethylene vinyl acetate copolymer, polyester, polycarbonate, Polyvinyl fluoride or other fluorine-containing polymer may be mentioned. Among these, in addition to the above-described transparency, polyurethane is particularly preferable because of its high flexibility and high followability to a wound part.

  Since the pressure-sensitive adhesive layer on one surface of the film substrate is affixed to the skin, it is preferable that there is little irritation to the skin. Moreover, it is preferable that an adhesive layer has water resistance, and it is preferable to have transparency from a viewpoint of ensuring the visibility of a sticking location further. As an adhesive forming such an adhesive layer, for example, an acrylic resin, natural rubber, water-based polymer emulsion, thermoplastic rubber, polyurethane, polyacrylic ester copolymer, silicone resin or the like is used as a main component. Is done. Moreover, it is preferable to adjust so as not to easily peel off due to sweating or movement of the skin, and to have an adhesive force that does not damage the skin when peeling from the skin. Preferable usage examples include a pressure-sensitive adhesive layer formed of an acrylic resin. The thickness of the pressure-sensitive adhesive layer is preferably 10 to 60 μm.

  As the release liner disposed on the above-mentioned pressure-sensitive adhesive layer, kraft paper or glassine paper treated with silicone resin or fluorine resin, kraft paper laminated with polyethylene treated with silicone resin, or silicone resin A plastic film that can be used for medical purposes such as a treated plastic film (eg, polyethylene terephthalate film, polyethylene film) can be used as appropriate. The release liner is peeled off when a dressing material formed of the film base material and the pressure-sensitive adhesive layer is applied to the skin.

  In the present invention, the support on the other surface of the film base material supports the above dressing material, increases the rigidity of the pressure-sensitive adhesive film dressing of the present invention, and attaches the pressure-sensitive adhesive layer at the time of application. Can be prevented. Examples of such a support include process paper, polyester nonwoven fabric, polypropylene nonwoven fabric, polypropylene film, polyethylene terephthalate film, and polyethylene film. The support is peeled off from the film substrate after the dressing material is applied to the wound or the like. For this reason, it is preferable that the support is pseudo-bonded to the above-described film base material. For example, the substrate and the support can be pseudo-bonded by co-extrusion of polyurethane as the film substrate and polyethylene as the support. Moreover, when using polyurethane for a film base material, polyester is preferably used as the support in addition to the polyolefin represented by the polyethylene described above. For pseudo-adhesion between the film substrate and the support, various methods such as laminating, coating, vapor deposition, and pressure bonding are used in addition to the coextrusion described above.

  The pressure-sensitive adhesive film dressing of the present invention has a plurality of through-holes that are regularly arranged from the release liner to the support, and the release liner and the support overlap each other when projected on the same plane. In addition, the slits are arranged in parallel with each other, and are arranged so that the positions of the slits of the release liner and the support do not overlap with the positions of the through holes.

  FIG. 1 is a schematic view of the pressure-sensitive adhesive film dressing of the present invention as viewed from the support side. In FIG. 1, the support 3 and a release liner 6 (not shown) are projected on the same plane. Moreover, FIG. 2 is sectional drawing which follows the AB line | wire of the adhesive film dressing of FIG.

  As shown in FIG. 1, the adhesive film dressing 1 of this invention has the several through-hole 9 arrange | positioned regularly. Such a through-hole 9 penetrates from the support 3 to the release liner 6 as shown in FIG. FIG. 1 shows an example in which the through-hole 9 is circular, but the shape of the through-hole is not limited to this in the present invention, and other than the above-described circle, an ellipse, a triangle, a quadrangle, a trapezoid, a rhombus, Various polygons such as a parallelogram, and other indefinite shapes can be used. Moreover, it is preferable that the through-hole 9 is the same shape and the same magnitude | size from the surface by the side of the support body 3 to the surface by the side of the peeling liner 6, Thereby, exudate, sweat, etc. of a wound part can be discharged | emitted rapidly. It becomes possible. Further, the through-hole 9 having such a shape can be easily formed by providing the through-hole 9 after laminating all of the support 3, the film base 4, the pressure-sensitive adhesive layer 5, and the release liner 6. Therefore, it is preferable because the manufacturing process can be simplified. In addition, as a method of forming the through-hole 9, for example, a method of punching using a punch blade such as a spring blade or Thomson blade having a desired size and shape, a method using a die cut roll, laser processing or a heated metal rod The method of forming by burning out is mentioned.

FIG. 3 is a schematic view when the arrangement pattern of the through holes is viewed from the support side. In the present invention, the through holes 9 are regularly arranged. As a preferable arrangement pattern of the through-holes 9, as shown in FIG. 3A, an arrangement pattern in which the through-holes 9 are arranged at the apexes of the net pattern 2 having a regular triangle indicated by a broken line as a minimum structural unit, or FIG. As shown in (b), there is an arrangement pattern in which the through holes 9 are arranged at the vertices of the mesh pattern 2 having a square indicated by a broken line as a minimum structural unit. When the through-holes 9 are arranged in a random pattern, the amount of exudate discharged from the wound may be partially different, which is not desirable. Further, in the portion where the through holes 9 are concentrated, it is difficult to dispose the slits of the release liner 6 and the support 3 described later and the positions of the through holes 9 so as not to overlap, which is not desirable. In addition, as a magnitude | size per through-hole 9, it is preferable that it is 1-15 mm < ² > from a viewpoint of discharge | emission of exudate, and maintaining the moderate moist environment of a wound part, and the through-hole with respect to the whole adhesive film dressing The area ratio of 9 is preferably 1 to 12%.

  In the present invention, when the release liner 6 and the support 3 are projected on the same plane, they have slits that do not overlap each other and are in a translational positional relationship. The position of the slit having and the position of the above-mentioned through-hole do not overlap. That the slits are in a translational positional relationship means that when the position of one slit is translated on the same plane on which the release liner 6 and the support 3 are projected, the entire slit is the other slit. Means exactly overlapping. FIG. 1 described above is also a schematic diagram showing this state. In FIG. 1, a plurality of through holes 9 are provided at the apex of a mesh pattern having a square (not shown) as a minimum structural unit, and the slit 7 included in the support 3 and not shown (located below the support 3). The slit 8 included in the release liner 6 does not overlap the position of the above-described through-hole, and the slit 8 included in the release liner 6 is disposed at a position translated from the slit 7 included in the support 3 in the horizontal direction in the figure. These are not crossed. In FIG. 1 and the drawings to be described later (FIGS. 2, 4, 5, 6, etc.), the slit 7 included in the support 3 is indicated by a solid line, and the slit 8 included in the release liner 6 is indicated by a broken line. For the sake of explanation, these are distinguished, and the broken lines do not indicate perforations.

  Next, the usage method of the adhesive film dressing of this invention is demonstrated using FIG.

1. In FIG. 2, one release liner 6 having one end of the release liner 6 (for example, holding the right end of the release liner 6 in the drawing) and separated by a slit (a release liner positioned on the left side in the drawing with respect to the slit 8). Remove 6).
2. Next, one end on the side where the release liner 6 remains is gripped, and the exposed surface of the pressure-sensitive adhesive layer 5 is attached to the wound part.
3. Next, the release liner 6 (the release liner on the right side of the slit 8 in the figure) remaining on the pressure-sensitive adhesive layer 5 is peeled off to completely cover the wound part.
4). Lightly press the vicinity of the slit 7 (for example, the right side of the slit 7) of the support 3 and hold one end of the support 3 (the support 3 positioned on the left side of the slit 7) located on the opposite side through the slit 7. Gently lift up and hold one end of the surface of the support 3 that is lifted off.
5. Next, the remaining other support 3 (support 3 located on the right side of the slit 7) is peeled off.

  By the above-described procedure, the dressing material having the film base material 4 and the pressure-sensitive adhesive layer 5 is put on the wound part. Further, as will be described later, an absorbent material (for example, a medical gauze or an absorbent pad) can be fixed on the film base 4 of the dressing material after application to remove exudate and the like.

  In the present invention, as described above, when the support 3 or the release liner 6 is peeled off, the first support 3 or the release liner 6 that is divided into two surfaces along the slit is first peeled, and then the remaining one is left. One support 3 or release paper 6 is peeled off. As described above, the slit 7 included in the support 3 and the slit 8 included in the release liner 6 are parallel to each other. Starting from 8, the support 3 and the release liner 6 can be easily peeled off.

  Further, the above-described slit 7 and slit 8 are arranged so as not to overlap with the through hole 9. For example, when the slit 7 of the support 3 does not overlap with the through hole 9, the support 3 is easy to peel off, but when the slit 7 overlaps with the through hole 9, the shape of the slit 7 and the shape of the through hole 9 are different. Since it becomes a composite peeling end portion, when peeling off the support body 3, it is difficult to peel off cleanly, causing a problem. Similarly, when the slit 8 included in the release liner 6 overlaps with the through-hole 9, the slit 8 and the shape of the through-hole 9 are combined to form a release end portion. Difficult to work with sticking workability.

  In addition, regarding the slit 8 included in the release liner 6 and the slit 7 included in the support 3, if the distance between the release liner 6 and the support 3 projected onto the same plane is short, the dressing is performed when the release liner 6 is peeled off. The material is easily bent in the vicinity of one of the slits, the surface having the pressure-sensitive adhesive layer 5 is easily attached, and handling is difficult. For this reason, when the support body 3 and the release liner 6 are projected on the same plane, the distance between the slit 8 included in the release liner 6 and the slit 7 included in the support body 3 is preferably 2 mm or more. More preferably, it is 5 mm or more. When the slit 8 of the release liner 6 and the slit 7 of the support 3 intersect when the release liner 6 and the support 3 are projected on the same plane, the slit 8 of the release liner 6 is divided. When one release liner 6 on the surface is peeled off, bending occurs in the vicinity of the slit 7 of the support 3, and the exposed pressure-sensitive adhesive layer 5 is easily attached to the other release liner 6 in the unpeeled portion. Become.

  Further, when the slit 8 of the release liner 6 and the slit 7 of the support 3 are not in a translational positional relationship, the slit 8 and the slit are dependent on the size of the adhesive film dressing and the interval between the slit 8 and the slit 7 described above. It becomes difficult to bend in the place where 7 approaches, and to arrange | position so that the through-hole 9 arrange | positioned regularly and this slit may not overlap. The shape of the slit 8 and the slit 7 is not particularly limited, and can be freely formed, such as a discontinuous slit such as a broken line or a dotted line, or a continuous slit without a break, but the release liner 6 and the support 3 can be peeled off. From the viewpoint of ease, it is preferable that the slit is a continuous slit.

  The slit 8 included in the release liner 6 and the slit 7 included in the support 3 are linear, curved, bent, or the like unless they are in parallel positional relationship and do not overlap with the through-hole 9. However, when it is not linear, when one release liner 6 divided by the slit 8 of the release liner 6 is peeled off, a portion having weak rigidity may be partially generated, and the exposed adhesive layer There is a case where a problem arises in the workability of sticking, for example, 5 is easily attached to the other release liner 6 that is not peeled. Therefore, it is preferable that the slit 8 included in the release liner 6 and the slit 7 included in the support 3 are linear. Moreover, it is also preferable that it is linear as a whole, and is formed with fine wavy lines or zigzag lines.

  The number of slits 8 included in the release liner 6 and the slits 7 included in the support 3 are the same if the support 3 and the release liner 6 are formed on the same plane in a positional relationship of parallel movement at different positions. Can be provided without limitation. However, it can be easily imagined that as the number of slits increases, the number of steps of the peeling work increases, and the peeling work takes time and is complicated. Moreover, the rigidity of the adhesive film dressing may decrease as the number of slits increases. For this reason, the number of slits 8 included in the release liner 6 and the number of slits 7 included in the support 3 is preferably small, preferably 2 or less, and most preferably 1 each.

  Next, a specific arrangement example of the slits in the present invention will be described with reference to the drawings. FIG. 4 is an arrangement diagram of the slits when the slits provided in the support 3 and the release liner 6 are projected on the same plane, and FIGS. 5 and 6 are the same slits provided in the support 3 and the release liner 6. It is an arrangement view of another slit when projected on a plane.

  FIG. 4A is an example in which one slit 8 included in the release liner 6 and one slit 7 included in the support 3 are arranged so as to be a straight line parallel to one side in the longitudinal direction of the adhesive film dressing. The slits are in a positional relationship where they are translated by 10 mm in the horizontal direction in the figure. The size of the adhesive film dressing is length: 5 cm × width: 7 cm (all sizes described below are also this size). Both ends of the slit are located on opposite sides of the rectangular adhesive film dressing.

  In FIG. 4B, one slit 8 included in the release liner 6 and one slit 7 included in the support 3 are arranged one by one, and the slit 7 and the slit 8 are arranged with respect to one side in the longitudinal direction of the adhesive film dressing. In this example, the slits are in a positional relationship in which the slits are translated by 10 mm in the horizontal direction in the figure. Both ends of the slit are located on opposite sides of the rectangular adhesive film dressing.

  In FIG. 4C, one slit 8 included in the release liner 6 and one slit 7 included in the support 3 are arranged, and the slit 7 and the slit 8 are arranged on one side in the longitudinal direction of the adhesive film dressing. In this example, the slits are in a positional relationship in which the slits are translated by 10 mm in the diagonally upper right direction in the figure. One end of the slit and the other end are located on adjacent sides of the rectangular adhesive film dressing.

  In FIG. 4D, one slit 8 included in the release liner 6 and one slit 7 included in the support 3 are disposed, and the slit 7 and the slit 8 are arranged on one side in the longitudinal direction of the adhesive film dressing. This is an example in which the slits are arranged obliquely, and the slits are in a positional relationship where they are translated by 55 mm in the diagonally upper right direction in the figure. Note that one end of the slit and the other end are located on adjacent sides of the rectangular adhesive film dressing, as in FIG.

  (E) of FIG. 5 is an example in which one curved slit is disposed as each of the slit 8 included in the release liner 6 and the slit 7 included in the support 3, and the slits are parallel to each other by 15 mm in the horizontal direction in the figure. It is in a positional relationship that has moved. Both ends of the slit are located on opposite sides of the rectangular adhesive film dressing.

  (F) of FIG. 5 is an example in which one bent linear slit is arranged as the slit 8 included in the release liner 6 and the slit 7 included in the support 3, and the slits are arranged in the horizontal direction in the figure. The positional relationship is 10 mm in parallel translation. Both ends of the slit are located on opposite sides of the rectangular adhesive film dressing.

  (G) of FIG. 5 is an example in which one slit is formed on each of the slits 8 formed in the release liner 6 and the slits 7 included in the support 3 that are linear and formed with fine wavy lines. The slits are in a positional relationship where they are translated by 10 mm in the horizontal direction in the figure. Both ends of the slit are located on opposite sides of the rectangular adhesive film dressing.

  In FIG. 6 (h), two slits 8 included in the release liner 6 and two slits 7 included in the support 3 are alternately arranged so as to be a straight line parallel to one side in the longitudinal direction of the adhesive film dressing. This is an example, and the slits are in a positional relationship in which they are translated by 10 mm in the horizontal direction in the figure. Both ends of the slit are located on opposite sides of the rectangular adhesive film dressing.

  (I) of FIG. 6 is an example in which two slits 8 of the release liner 6 and two slits 7 of the support 3 are alternately arranged, and the slits 7 and 8 are arranged in the longitudinal direction of the adhesive film dressing. The slits are arranged obliquely with respect to one side, and the slits are in a positional relationship in which they are translated by 15 mm in the horizontal direction in the figure. The slit 7 and the slit 8 have one end and the other end positioned on adjacent sides of the rectangular adhesive film dressing and both ends positioned on opposite sides of the rectangular adhesive film dressing. There is a slit.

  4 (a) to (d), FIG. 5 (e) to (g), and FIG. 6 (h) and (i), an adhesive film dressing excellent in application workability is obtained. However, in (h) and (i) of FIG. 6, since the number of slits 7 and slits 8 is two, the rigidity of the adhesive film dressing is slightly reduced, and the adhesive film dressing is never bent. However, the affixing work must be done carefully.

  In using the pressure-sensitive adhesive film dressing of the present invention, the dressing material is applied to the wound part for the purpose of expelling exudate or sweat from the wound part, and then, if necessary, Pad material such as gauze, non-woven fabric, cotton, sponge, etc. and self-adhesive pad material (eg polyurethane foam, hydrocolloid, hydrogel, hydropolymer, silicone gel, aqueous gel, etc.) It can arrange | position suitably. After the exudate and sweat are sufficiently absorbed, the absorbent material can be replaced with the dressing material intact. As a result, the burden on the affected area can be minimized.

  The pressure-sensitive adhesive film dressing of the present invention is formed such that the slit of the support and the slit of the release liner do not overlap each other and are in a translational positional relationship when the support and the release liner are projected on the same plane. In addition, since the slits do not overlap with the through-holes, the adhesive film dressing is sufficiently rigid, especially when the release liner is peeled off. It turns out that it is the outstanding adhesive film dressing.

DESCRIPTION OF SYMBOLS 1 Adhesive film dressing 2 Reticulated pattern 3 Support body 4 Film base material 5 Adhesive layer 6 Release liner 7, 8 Slit 9 Through-hole

Claims (1)

  An adhesive film dressing having an adhesive layer on one side of a film substrate and a release liner on the adhesive layer, and having a support on the other side of the film substrate, the adhesive film dressing Has a plurality of through holes that are regularly arranged from the release liner to the support, and when the release liner and the support are projected on the same plane, they do not overlap with each other and do not move in parallel. A pressure-sensitive adhesive film dressing having a slit in a positional relationship, wherein the position of the slit of the release liner and the support does not overlap with the position of the through-hole.