JP2018140047A - Adhesive film dressing roll body - Google Patents

Abstract

The present invention provides an adhesive film dressing roll body which has good pasting workability even if it has a plurality of through-holes and does not allow a user to visually recognize the deviation of the release liner when wound into a roll. The pressure-sensitive adhesive film dressing of the roll body has through holes arranged in a plurality of rows in parallel with the length direction, and the support of the pressure-sensitive adhesive film dressing has a length direction. It has a parallel slit and a peeling direction display portion indicating a direction in which the support is peeled from the slit, and the peeling direction display portion is a temporary auxiliary that connects through holes arranged in parallel to the length direction. Arranged between adjacent auxiliary lines without overlapping with the line. [Selection] Figure 1

Description

  The present invention relates to a pressure-sensitive adhesive film dressing roll body that has good pasting workability and does not allow the user to visually recognize the deviation of the release liner when wound into a roll.

  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 the above-mentioned problem, there is known an adhesive film dressing in which a process paper is laminated on a surface opposite to a sticking surface of a film substrate as a support (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 user 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.

  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 2). In this document, the above-described through-hole is used to allow the exudate to pass through when the absorbent absorbs the exudate. In general, the through-hole is used to indicate that the wound portion 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 decreases due to the plurality of through holes, when the release liner is peeled off, the adhesion between the adhesive layers is particularly likely to occur, the pasting operation is extremely complicated, and improvement has been demanded. .

  As a result of intensive studies on the above problems, the present inventors have a pressure-sensitive adhesive layer on one side of the film substrate and a release liner on the pressure-sensitive adhesive layer, and on the other side of the film substrate. Is a pressure-sensitive adhesive film dressing having a support, the pressure-sensitive adhesive film dressing having a plurality of through-holes arranged regularly from the release liner to the support, and the release liner and the support are the same Adhesive film dressing that has parallel slits that do not overlap each other when projected onto a plane, and is arranged so that the positions of the slits of the release liner and the support and the positions of the through holes do not overlap. (Patent Document 3).

  In general, when the pressure-sensitive adhesive film dressing is long, the pressure-sensitive adhesive film dressing is wound up into a roll, but when the pressure-sensitive adhesive film dressing roll body is stored for a long time (for example, when stored for more than one month) In some cases, a deviation occurs between the through-holes of the release liner and the through-holes of the support, the film substrate, and the pressure-sensitive adhesive layer at the beginning and end of winding of the roll body. In order to improve the handleability of the adhesive film dressing, it is preferable that the support of the adhesive film dressing has a peeling direction display portion indicating a direction in which the support is peeled off, but the above-described deviation is included in the support. Since the peeling direction display part and the through-hole of the release liner are visually recognized and this deviation is partial, there is a problem that the user often feels uncomfortable and the merchantability is lowered.

JP 08-154965 A JP, 2006-22223, A Japanese Patent Application No. 2006-105881

  Provided is an adhesive film dressing roll body which has good pasting workability even if it has a plurality of through holes, and does not allow the user to visually recognize the deviation of the release liner when wound into a roll.

  (1) An adhesive film dressing having a pressure-sensitive adhesive layer on one side of the film base and a release liner on the pressure-sensitive adhesive layer, and having a support on the other side of the film base An adhesive film dressing roll body wound up, wherein the adhesive film dressing has through holes arranged in a plurality of rows in parallel to the length direction, and the support body is in the length direction. Temporary auxiliary that has a parallel slit and a peeling direction display portion indicating a direction in which the support is peeled from the slit, and the peeling direction display portion connects through holes arranged in parallel to the length direction. An adhesive film dressing roll body, which is disposed between adjacent auxiliary lines without overlapping with a line.

  Even if it has a plurality of through-holes, it is possible to provide a pressure-sensitive adhesive film dressing roll body that has good pasting workability and does not allow the user to visually recognize the deviation of the release liner when wound into a roll.

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 Another schematic view when the adhesive film dressing of the present invention is viewed from the support side Another schematic view of the adhesive film dressing of the present invention as seen from the support side Schematic view when the adhesive film dressing of FIG. Schematic when the adhesive film dressing of the comparative example is viewed from the support side Another schematic diagram when viewing the adhesive film dressing of the comparative example from the support side Schematic view when the adhesive film dressing of FIG. Example of peel direction display

  Hereinafter, the present invention will be described in detail.

  The pressure-sensitive adhesive film dressing of the pressure-sensitive adhesive film dressing roll body of the present invention (hereinafter also referred to as the pressure-sensitive adhesive film dressing of the present invention) has a pressure-sensitive adhesive layer on one surface of the film substrate and a release liner on the pressure-sensitive adhesive layer. The other side of the film substrate has a support.

<Film base>
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. Therefore, a film substrate having a total light transmittance of 60% or more and a haze of 0 to 30% is preferable. 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.

<Adhesive layer>
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 also it is preferable to have transparency from a viewpoint of ensuring the visibility of an attachment location. As the pressure-sensitive adhesive contained in such a pressure-sensitive adhesive layer, for example, those mainly composed of acrylic resin, natural rubber, water-based polymer emulsion, thermoplastic rubber, polyurethane, polyacrylic ester copolymer, silicone resin, etc. are used. Is done. Here, the main component means that the ratio of the pressure-sensitive adhesive layer to the solid content of the pressure-sensitive adhesive layer is 50% by mass or more. 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 pressure-sensitive adhesives containing acrylic resins. In addition, the thickness of the pressure-sensitive adhesive layer takes into consideration the adhesiveness to the skin of the pressure-sensitive adhesive film dressing, the through-holes of the release liner, and the difficulty of causing the displacement of the through-holes of the support, the film substrate, and the pressure-sensitive adhesive layer. 5 to 50 μm is preferable, and 10 to 40 μm is more preferable.

<Release liner>
As the release liner disposed on the above-mentioned pressure-sensitive adhesive layer, paper or plastic film surface-treated with a silicone resin or fluorine resin is suitable, for example, a craft surface-treated with a silicone resin or fluorine resin. Paper or glassine paper, kraft paper laminated with polyethylene surface-treated with silicone resin, polyethylene terephthalate film or polyethylene film surface-treated with silicone resin, and the like that can be used for medical purposes can be used as appropriate. The release liner is peeled off when a film dressing formed of a film substrate and an adhesive layer is applied to the skin.

<Support>
In the present invention, the support on the other surface of the film base material supports the above-mentioned film dressing, 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 film dressing 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 film substrate and the support can be pseudo-adhered 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 co-extrusion described above.

  The pressure-sensitive adhesive film dressing roll body of the present invention is a pressure-sensitive adhesive film dressing roll body wound up in a roll shape with the side having the support side outward, or wound in a roll shape with the side having the support side inward. Any of the taken adhesive film dressing roll bodies may be used, but the adhesive film dressing roll body wound in a roll shape with the surface having the support on the outside is an adhesive film from the top of the horizontal roll. When the dressing is unwound, the pressure-sensitive adhesive layer will be downward with respect to the film base, making it easy for the user to use intuitively when attaching to the affected area, and easily cutting out to the required size depending on the size of the affected area. It is preferable because it can be used. In addition, it is preferable that the adhesive film dressing roll body of this invention is a roll body wound up by the winding core. Such a winding core is preferably a hollow winding core, such as a paper tube. The outer diameter of the winding core is preferably 10 to 130 mm from the viewpoint of handleability of the adhesive film dressing roll body. Moreover, it is preferable from a viewpoint of the handleability of this adhesive film dressing that the width | variety of the adhesive film dressing wound up by the above-mentioned winding core is 50-300 mm and length is 2-50 m.

<Through hole, peeling direction indicator, temporary auxiliary line>
The pressure-sensitive adhesive film dressing of the present invention has through-holes arranged in a plurality of rows parallel to the length direction, and the support is a slit parallel to the length direction and a peeling direction indicating the peeling direction of the support. It has a display part, and the peeling direction display part is arranged between adjacent auxiliary lines without overlapping with a temporary auxiliary line connecting through holes arranged in parallel to the length direction. As a result, even if there is a deviation in the through-holes of the release liner and the through-holes of the support, the film base material, and the adhesive layer at the beginning and end of winding, the peeling direction display portion is caused by the deviation. Since the through-holes of the release liner do not overlap with each other, the deviation of the release liner is not visually recognized by the user, and the merchantability does not deteriorate.

  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 a schematic sectional drawing in alignment with the AB line | wire of the adhesive film dressing of FIG.

  In FIG. 1, the adhesive film dressing 1 of the present invention has a plurality of through holes 7 for the purpose of discharging exudate, preventing compression of the wound part, and maintaining the wound part in an appropriate moist environment. The through holes 7 are arranged in parallel and in a plurality of rows with respect to the length direction of the adhesive film dressing indicated by an arrow in the drawing. The support 3 has a slit 8 parallel to the length direction of the adhesive film dressing and a peel direction display portion 9 indicating the peel direction of the support, and the peel direction display portion 9 penetrates in the length direction. It is provided between the adjacent auxiliary line 11 without overlapping with the temporary auxiliary line 10 connecting the hole 7. FIG. 2 is a schematic sectional view taken along line AB of the adhesive film dressing of FIG. As shown in FIG. 2, the through hole 7 penetrates from the support 3 to the release liner 6.

  As described above, the support 3 includes the through-holes 7 arranged in a plurality of rows in parallel with the length direction of the adhesive film dressing indicated by the arrows, the slits 8 parallel to the length direction, and the support 3. The peeling direction display part 9 which shows the peeling direction of this is provided, and this peeling direction display part 9 is provided between the same auxiliary line 11 and the temporary auxiliary line 10 which connected the through-hole 7 with respect to the length direction. ing. In such a case, even if the release liner is displaced by winding the adhesive film dressing, the probability that the positions of the through hole 7 and the release direction display unit 9 overlap with each other is reduced, and the user visually recognizes the displacement of the release liner. Probability decreases. Although not shown, in the present invention, the temporary auxiliary line 10 and the auxiliary line 11 are more preferably tangents that connect the outer edge portions of the through holes 7 closer to the peeling direction display portion 9. Thereby, there is no possibility that the positions of the peeling direction display part 9 and the through-hole 7 overlap each other, and the visibility of the release liner with respect to displacement is significantly reduced.

  In FIG. 1, the through-hole 7 is circular, but in the present invention, the shape of the through-hole 7 is not limited to this, and besides the circular shape described above, an ellipse, triangle, quadrangle, trapezoid, rhombus, parallel Various polygons such as a quadrilateral and other indefinite shapes can be used. Moreover, it is preferable that the through-hole 7 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. The through hole 7 having such a shape can be easily formed by providing the through hole 7 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 7, for example, a method of punching using a punch blade such as a mainspring blade or a 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.

  In FIG. 1, an example in which a white arrow is used as the peeling direction display unit 9 is shown, but the present invention is not limited to this, and other specific examples of the peeling direction display unit 9 are shown in FIG. 10. . FIG. 10 shows an example of the peeling direction display part. As shown in FIG. 10, in the present invention, the peeling direction display unit 9 is not particularly limited as long as the user can visually understand the peeling direction of the support, and the color is not limited to this. As a method of forming the peeling direction display part 9 of the present invention on the support 3, a method of forming by a printing method using printing ink such as UV ink, or an adhesive substrate on which the peeling direction display part 9 is formed. Although the method etc. which affix on the support body 3 are mentioned, this invention is not limited to this. The size of the peeling direction display portion 9 of the present invention is not particularly limited as long as it falls within the range between the temporary auxiliary line 10 having a through hole in the length direction and the adjacent auxiliary line 11. However, from the viewpoint of visibility, the length of the adhesive film dressing in the width direction is preferably 3 to 20 mm.

FIG. 3 is a schematic diagram when the arrangement pattern of the through holes is viewed from the support side. In both (a) and (b) of FIG. 3, the through holes 7 are arranged in parallel in the length direction and in a plurality of rows. As a preferable arrangement pattern of the through holes 7, as shown in FIG. 3A, an arrangement pattern in which the through holes 7 are arranged at the apexes of the net pattern 2 having the equilateral triangle indicated by the broken line as the minimum structural unit, or FIG. Although the arrangement pattern which arrange | positions the through-hole 7 in the vertex of the net-like pattern 2 which makes the square shown with the broken line the minimum structural unit as shown in (b) is mentioned, this invention is not limited to this. In addition, as a size per through-hole 7, 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 7 is preferably 1 to 12% with respect to the area of the adhesive film dressing including the area of the through holes.

  In the present invention, the support has a slit parallel to the length direction and a peeling direction display portion indicating the peeling direction of the support. Thereby, good pasting workability can be obtained. FIG. 4 is another schematic view when the pressure-sensitive adhesive film dressing of the present invention is viewed from the support side. In FIG. 4, the slit 8 is not a straight line but a wavy line, and the wavy line is not strictly parallel to the length direction of the adhesive film dressing 1, but connects the tops of the wavy lines (not shown). Since the line and the line connecting the lowest part of the wavy line are parallel to the length direction of the adhesive film dressing 1, the slit 8 having such a curve is also the “slit parallel to the length direction” of the present invention. To include.

  FIG. 5 is another schematic view when the adhesive film dressing of the present invention is viewed from the support side. FIG. 1 described above shows an example in which the through-hole 7 is arranged at the apex of the mesh pattern 2 having a square as the minimum structural unit as shown in FIG. 3B. In FIG. As shown in FIG. 3A, an example is shown in which a through-hole 7 is arranged at the apex of a mesh pattern 2 having a regular triangle as a minimum structural unit.

1, 4, and 5 described above, the size of each through hole 7 is 3.1 mm ^{2. In} FIGS. 1 and 4, the area ratio of the through hole 7 is the through hole. The area ratio of the through-hole 7 in FIG. 7 is 1.6% with respect to the area of the pressure-sensitive adhesive film dressing including the area of the through-hole. It is.

  FIG. 6 is a schematic view when the adhesive film dressing of FIG. 1 in which the deviation has occurred is viewed from the support side. In FIG. 6, the through-holes of the release liner in which the deviation has occurred are projected onto the adhesive film dressing viewed from the support side. In FIG. 6, the through-holes of the release liner before the deviation occurs are shown as broken-line circles as through-holes 7. In addition, the through hole of the release liner after the occurrence of the deviation is indicated by a solid circle as a through hole 7 ′. As is apparent from FIG. 6, the adhesive film dressing of FIG. 1 has the same auxiliary that the peeling direction display part is adjacent to the temporary auxiliary line connecting through holes arranged in parallel to the length direction. Since it is arranged between the lines, even if there is a gap between the through hole of the release liner and the through hole of the support, film base, and adhesive layer, the peel direction of the support is displayed. Since the position of the through hole of the release liner and the release liner does not overlap, it is difficult for the user to recognize the deviation of the release liner.

  FIG. 7 is a schematic view of an adhesive film dressing as a comparative example with respect to the present invention when viewed from the support side. In FIG. 7, the peeling direction display part 9 which shows the direction which peels a support body is arrange | positioned on the temporary auxiliary line 11 which tied the through-hole 7 arrange | positioned in parallel with the length direction. In such a case, if there is a deviation between the through hole of the release liner and the through hole of the support, the film base material, and the pressure-sensitive adhesive layer, the release direction display portion 9 and the through hole 7 of the release liner overlap with each other. The deviation of the liner is visually recognized by the user and gives the user a sense of incongruity, so that the merchantability is significantly lowered. FIG. 9 shows this state. FIG. 9 is a schematic view when the adhesive film dressing of FIG. 7 in which the deviation occurs is viewed from the support side.

  In FIG. 9, as in the previous FIG. 6, the through-holes of the release liner in which a shift has occurred are projected onto the adhesive film dressing viewed from the support side. In FIG. 9, the through-holes of the release liner before the deviation is generated are indicated by broken-line circles as through-holes 7. In addition, the through hole of the release liner after the occurrence of the deviation is indicated by a solid circle as a through hole 7 ′. As is apparent from FIG. 9, the adhesive film dressing of FIG. 7 is arranged so that the peeling direction display portion 9 overlaps with the temporary auxiliary line 11 connecting through holes arranged in parallel to the length direction. Therefore, the peeling direction display portion 9 and the through hole 7 ′ of the release liner overlap. In such a case, the deviation of the release liner is visually recognized by the user, and the merchantability is reduced.

  In addition, in FIG. 8, another schematic when the adhesive film dressing of a comparative example was seen from the support body side was shown. Also in this case, since the peeling direction display portion 9 is arranged so as to overlap with the temporary auxiliary line 11 connecting the through holes arranged in parallel to the length direction, the case of FIG. Similarly, the deviation of the release liner is visually recognized by the user.

  In the present invention, the release liner can be provided with slits as in the support, but when projected on the same plane, the release liner slit and the support slit may have parallel slits so that they do not overlap each other. It is preferable in the pasting workability. Moreover, it is preferable that the position of the slit which a release liner and a support body do not overlap with the position of a through-hole. As a result, an adhesive film dressing particularly excellent for the pasting operation can be obtained.

  As the slit of the release liner and the support, it can be freely formed, such as a discontinuous slit such as a broken line or a dotted line, or a continuous slit without a cut, but from the viewpoint of easy peeling, it is continuous without a cut. A slit is preferred. Further, the number of slits described above can be provided without limitation if the support and the release liner are formed in parallel at different positions when projected onto the same plane. 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 these slits is preferably as small as possible, preferably 2 or less, and most preferably 1 each.

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

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

  By the above-described procedure, the pressure-sensitive adhesive film dressing having the film base material 4 and the pressure-sensitive adhesive layer 5 is put on the wound part.

  In using the adhesive film dressing of the present invention, the film dressing 4 is attached 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 film dressing intact. As a result, the burden on the affected area can be minimized.

  As is clear from the above description, according to the present invention, even if it has a plurality of through-holes, the sticking workability is good, and the deviation of the release liner when wound into a roll shape is given to the user. It can be seen that an adhesive film dressing roll body that is not visually recognized is obtained.

DESCRIPTION OF SYMBOLS 1 Adhesive film dressing 2 Reticulated pattern 3 Support body 4 Film base material 5 Adhesive layer 6 Release liner 7, 7 'through-hole 8 Slit 9 Peeling direction display part 10 Temporary auxiliary line 11 Adjacent temporary auxiliary line

Claims (1)

  An adhesive film dressing having a pressure-sensitive adhesive layer on one side of the film base material and a release liner on the pressure-sensitive adhesive layer and having a support on the other side of the film base material is wound into a roll. An adhesive film dressing roll body, wherein the adhesive film dressing has through holes arranged in a plurality of rows parallel to the length direction, and the support is a slit parallel to the length direction. And a peeling direction display portion indicating a direction in which the support is peeled from the slit, and the peeling direction display portion overlaps with a temporary auxiliary line connecting through holes arranged in parallel to the length direction. An adhesive film dressing roll body, which is disposed between adjacent auxiliary lines without any problem.

Images