JP2009142328A - Adhesive film dressing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide adhesive film dressing which makes it possible to easily peel off a support from a base material and sticking it to the skin neatly in a simple manufacturing process. <P>SOLUTION: The adhesive film dressing has: the base material 12 which is a waterproof flexible film; and the support 20 which is closely attached to the base material 12, has rigidity higher than the base material and is larger than the base material 12. An adhesive 14 is applied onto one surface of the base material 12 and release paper 16 stuck to the surface of the adhesive 14 is included. A support release piece 22 bonded on the side opposite to the base material 12 of the support 20 is included. A groove-like removal part 26 formed through the support 20 and the support release piece 22 divides the support release piece 22 and the support 20 into two, respectively. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention provides an adhesive film that covers a wound part such as burns, cuts, lacerations, suture wounds, and other inflamed areas, and pads covering the wound part, and protects against water wetting etc. Regarding dressing.

  Conventionally, an adhesive film dressing made of a film having waterproofness and high permeability to oxygen and water vapor has been used to protect the wounded part of the body from hot water during bathing and housework. Such an adhesive film dressing is made of a thin film having flexibility and stretchability, and can be deformed with the movement of the skin without disturbing the movement of the body. The pressure-sensitive adhesive has high adhesive strength, is reliably adhered to the skin, and has a high waterproof function. On the other hand, handling was troublesome, such as wrinkles when sticking to the skin, curling and adhesion of adhesives.

As an adhesive film dressing that is easy to handle, there is a roll-shaped medical bandage disclosed in Patent Document 1, a container for the same, and a method for using the same. This includes a base material made of a plastic film, a pressure-sensitive adhesive layer provided on one surface of the base material, a release paper adhered on the pressure-sensitive adhesive layer, and the other surface of the base material. A support that is thermocompression bonded and removably attached is provided. This support body is provided with two sheets attached in the middle of the width direction of the base material. The part where the support is attached is provided with a non-adhesive part so as to be easily peeled off, and is not adhered to the substrate. A support peeling piece made of a plastic adhesive tape having a desired width is provided on the abutted portion of the support. The side edge portion in the longitudinal direction of the support peeling piece is provided with a non-adhesive portion so as to be easily peeled off and is in a state of floating from the support.
JP 2000-254164 A

  In the case of the said patent document 1, since the support body peeling piece provided on the part with which the support body was attached | subjected is not divided | segmented by the line along the edge part of a support body, it peels off a support body peeling piece simultaneously. When one of the supports is peeled off after being peeled off from the support peeling piece, when the other remaining support is peeled off, the support itself is not stiff and thus is difficult to peel off. Moreover, the manufacturing process had to provide a non-adhesion part in a support body and a support body peeling piece, and there were many manufacturing processes.

  The present invention has been made in view of the above-mentioned problems of the background art, and provides an adhesive film dressing that can be easily peeled off from a substrate and adhered to the skin cleanly by a simple manufacturing process. For the purpose.

  The present invention includes a base material that is a flexible film having waterproofness, a support that is in close contact with the base material and has higher rigidity than the base material, and an adhesive applied to one surface of the base material, A release paper affixed to the surface of the pressure-sensitive adhesive; and a support peeling piece bonded to the opposite side of the support to the base, and penetrating the support and the support peeling piece. The groove-shaped removal portion formed in this manner is an adhesive film dressing provided so as to divide the support peeling piece and the support, respectively.

  Further, the base material is exposed at the bottom of the removal portion, and a portion where the base material and the support are in contact with each other adjacent to the bottom portion of the removal portion has a short width due to the manufacturing process of the removal portion. A non-contact portion where the base material and the support are not in close contact is provided. The removal part is suitably 0.1 mm to 20 mm, but if it is too wide, the base material will be wrinkled and difficult to use at the time of sticking, and if it is too narrow, it will be difficult to peel the support from the base material. Therefore, it is preferable that the removal part is formed with a width of 1 mm to 5 mm. The support is easier to handle if it is formed wider than the substrate.

  In addition, the base material, the support body, and the support peeling piece are formed in a tape shape, and the support body is formed to have a width wider than that of the base material, and laterally along the longitudinal direction of the base material. The support peeling piece is formed with a width narrower than that of the base material, and the removal portion is provided along the longitudinal direction of the support peeling piece.

  The release paper is provided with a cutting line for dividing the release paper, and the cutting line is provided at a position different from that of the removing unit.

  The pressure-sensitive adhesive film dressing of the present invention can easily peel the support from the base material with a simple manufacturing process. Thereby, a base material can be stuck on skin cleanly and a wound can be reliably protected from water, a microbe, etc.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 and 2 show an embodiment of the present invention. An adhesive film dressing 10 according to this embodiment adheres so as to cover a wound part of a body and a sterilization pad covering the wound part. Is used to protect against hot water during bathing and housework and to prevent invasion of germs.

  The adhesive film dressing 10 is provided with a base material 12 attached to the body, the base material 12 is made of a film having waterproofness and flexibility and stretchability, and the film is cut into a tape shape and provided. It has been. The film which makes the base material 12 is a translucent polyurethane film of 10 micrometers-120 micrometers, for example, and has moisture permeability. In addition, it may be made of a film of polyolefin, polyvinyl chloride, polyamide, ethylene vinyl acetate copolymer, polyester, polyvinyl alcohol, polyvinylidene chloride or the like.

  A support 20 that is thicker and more elastic and rigid than the base 12 is attached to the surface 12b of the base 12 in close contact. The support 20 is made of a material that can be adhered to such a degree that it can be peeled off from the substrate 12, and is selected depending on the combination with the material of the substrate 12. For example, when the base material 12 is made of polyurethane, polyester, polyolefin, paper, or the like is suitable. The support 20 is cut into a tape shape whose width direction is longer than that of the base 12, and the pair of side edges 20 a of the support 20 protrudes with a constant width on both sides of the side edge of the base 12. ing. The peel strength between the support 20 and the substrate 12 is strong enough not to be easily peeled off even when a transportation impact or vibration is applied, and the support 20 is peeled from the substrate 12 by hand during use. It is something that can be done.

  An adhesive 14 is provided on the back surface 12 a of the substrate 12. The pressure-sensitive adhesive 14 is a medical pressure-sensitive adhesive, and is made of a material that does not irritate the skin. The material of the adhesive 14 is mainly composed of acrylic resin, natural rubber, water-based polymer emulsion, thermoplastic rubber, polyurethane, polyacrylic ester copolymer and the like. As the solvent, both aqueous and solvent-based solvents can be used, but those having high water resistance are preferred. The adhesive strength of the adhesive 14 is so strong that it does not easily peel off due to sweating or movement of the skin, and does not damage the skin when peeling off from the skin.

  A release paper 16 is provided on the surface of the adhesive 14 opposite to the base 12. The release paper 16 is used as a release paper for a medical bandage, and is formed of craft paper treated with silicone. In addition, for example, glassine paper, kraft paper laminated with silicone-treated polyethylene, silicone-treated polyethylene terephthalate (PET) film, and the like are used as appropriate. The release paper 16 is cut into a tape shape having the same width as the substrate 12, and the release paper 16 is provided with a cutting line 18 for dividing the release paper 16. The cutting line 18 is provided at a position closer to one side edge than the tape-shaped center in the width direction, and is provided along the longitudinal direction. The release force of the release paper 16 from the pressure-sensitive adhesive 14 is strong enough to prevent the release paper 16 from being easily peeled off even when a transportation impact or vibration is applied, and can be peeled off from the pressure-sensitive adhesive 14 during use. is there.

  Note that the peel strength between the support 20 and the substrate 12 and the peel strength of the release paper 16 from the adhesive 14 are half that of the peel strength between the skin and the adhesive 14. Is preferably not exceeded. According to this, even if the adhesive force between the skin and the pressure-sensitive adhesive 14 decreases due to, for example, perspiration, the base material 12 is not peeled off from the skin when the support 20 is peeled from the base material 12. . Further, the peel strength between the support 20 and the substrate 12 is made larger than the peel strength between the release paper 16 and the adhesive 14, and the support 20 does not peel from the substrate 12 first when the release paper 16 is peeled off. It is what I did.

A support peeling piece 22 is attached to the surface 20 b of the support 20 on the side opposite to the substrate 12 with an adhesive 24. The support release piece 22 may be an adhesive tape made of polypropylene or the like and having an adhesive 24 formed on one side in advance. The support peeling piece 22 is provided shorter in the width direction than the base 12 and is provided along the center of the support 20. At the center of the support peeling piece 22 in the width direction, a support peeling piece 22, an adhesive 24, and a groove-shaped removal portion 26 that penetrates the support 20 are formed. The width of the removing portion 26 is between 0.1 mm and 20 mm, preferably about 1 mm to 5 mm. The surface 12 b of the base material 12 is exposed at the bottom of the removal portion 26. A non-contact portion 27 in which the close contact portion 25 is peeled along the removal portion 26 with a narrow width is provided at the boundary portion between the base material 12 adjacent to the bottom portion of the removal portion 26 and the support 20 by the manufacturing process of the removal portion 26. As shown in FIG. 1, the pressure-sensitive adhesive film dressing 10 is wound around a roll core 28 made of paper or the like so that the support peeling piece 22 comes outside, and is stored and stored.

  Next, an example of the manufacturing process of the adhesive film dressing 10 will be described. First, the tape-shaped support 20 is brought into close contact with the surface 12b of the tape-shaped substrate 12 having a predetermined shape. Next, the adhesive 14 is applied to the back surface 12 a of the base material 12 that is in close contact with the support 20, and the release paper 16 on which the cutting line 18 is formed is further attached to the adhesive 14. In addition, a support peeling piece 22 is bonded to the surface 20 b of the support 20 via an adhesive 24.

  Then, from the support peeling piece 22 side, a pair of parallel cutting lines penetrating the support peeling piece 22, the adhesive 24, and the support 20 are formed, and the inner portions of the pair of cutting lines are removed so as to tear off. The removal part 26 is formed. The contact portion 25 at the boundary between the base material 12 and the support 20 at the bottom of the removal portion 26 is subjected to a force in the peeling direction when the inner portions of the pair of cutting lines are torn, and the contact portion 25 is partially peeled off. Therefore, the non-contact portion 27 is formed with a narrow width. Thereby, when peeling the support body 20 from the base material 12, it is easy to start peeling, and it peels smoothly with little resistance.

  Next, the usage method of the adhesive film dressing 10 of this embodiment is demonstrated. First, the pressure-sensitive adhesive film dressing 10 wound in a roll shape is pulled out and cut with scissors or the like into a size that covers a wound part or pads. Then, one side separated by the cutting line 18 of the release paper 16 is peeled off from the back surface 12a side of the base material 12 to expose the adhesive 14, and the exposed base material 14 is pasted on the portion of the base material 12 to the skin. To wear. Next, the remaining part of the release paper 16 is peeled to expose the adhesive 14, and the remaining part of the base material 12 is stuck to the skin with the exposed adhesive 14, and the wound part and pads are used as the base material. 12 to cover. In addition, you may peel both before dividing the both sides divided | segmented by the cutting line 18 of the release paper 16 to skin. In this case, since the side edge 20a of the support 20 protrudes to the outside of the adhesive 14, the side edge 20a can be held avoiding the adhesive 14 and easily attached to a desired position on the skin. be able to.

  Furthermore, after sticking the base material 12 to the skin with the adhesive 14, the one divided by the removing portion 26 of the support peeling piece 22 is peeled off from the base material 12 by using the end portion of the removing portion 26 as a trigger, The support 20 is also peeled off from the substrate 12 and peeled off. Furthermore, the support body 20 left on the base material 12 is peeled off from the base material 12 together with the support body peeling piece 22, and the sticking of the adhesive film dressing 10 is completed.

  According to the pressure-sensitive adhesive film dressing 10 of this embodiment, after the base material 12 is attached to the skin, the support strips 22 and the support body 20 can be easily peeled off from the base material 12 and are easily and cleanly applied to the body. Can do. Since the support peeling piece 22 is made of a firm film, it is easy to hold and the support 20 can be easily peeled off from the substrate 12. Since the removal part 26 of the support peeling piece 22 is formed in a groove shape and has a small space, it is easy for a finger to be caught and the support peeling piece 22 to be easily caused. In addition, since the non-contact portion 27 is provided at the boundary between the base material 12 and the support 20 at the bottom of the removal portion 26, the support 20 can be easily peeled from this point.

  The support body 20 is provided longer in the width direction than the base material 12, and the pair of side edge portions 20 a of the support body 20 protrudes with a constant width to the sides on both sides of the side edge portion of the base material 12. By holding this, even when the release paper 16 is peeled off and the adhesive 14 is exposed, the finger is not adhered to the adhesive 14 and can be freely attached to the body by changing the position it has. . The base material 12 does not wrinkle or the adhesives 14 stick to each other and do not curl, and can be applied smoothly.

  Moreover, the manufacturing process of the adhesive film dressing 10 is a simple process without a process of providing a non-adhesive part as a clue to peeling on the support 20 or the support peeling piece 22. The non-contact part 27, which is a clue to peeling the support 20, is formed by peeling the contact part 25 in the process of forming the removal part 26. Therefore, the removal part 26 and the non-contact part 27 are provided in one manufacturing process. And the manufacturing process is reduced.

  In addition, the adhesive film dressing of this invention is not limited to the said embodiment, It can change suitably. The side edge portion of the support may not protrude from both side edge portions of the base material, and may protrude from one side edge portion. The material, thickness, and presence / absence of coloring of the base material, support, and support peeling piece can be changed as appropriate, and the base material and support are preferably transparent films when sticking while looking at the skin condition. . The material and shape of the roll core are not particularly limited as long as the adhesive film dressing can be smoothly wound, and the roll core material or shape may be individually packaged. The position where the removal part is provided on the support peeling piece and the width of the removal part can be changed as appropriate.

It is a perspective view which shows the state by which the adhesive film dressing of one Embodiment of this invention was wound around the roll core. It is a longitudinal cross-sectional view of the width direction of the adhesive film dressing of this embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Adhesive film dressing 12 Base material 14,24 Adhesive 16 Release paper 18 Cutting line 20 Support body 22 Support peeling piece 24 Adhesive 25 Adhesion part 26 Removal part 27 Non-adhesion part

Claims (6)

  A base material that is a flexible film having waterproof properties, a support that is in close contact with the base material and has higher rigidity than the base material, an adhesive applied to one surface of the base material, and the adhesive A release paper affixed to the surface; and a support release piece bonded to the opposite side of the support to the base, and formed through the support and the support release piece. A pressure-sensitive adhesive film dressing characterized in that a groove-shaped removal portion is provided so as to divide the support peeling piece and the support, respectively.   The base is exposed at the bottom of the removal portion, and the base and the support are in contact with the base adjacent to the bottom of the removal portion with a short width due to the manufacturing process of the removal portion. The pressure-sensitive adhesive film dressing according to claim 1, further comprising a non-contact portion where the material and the support are not in close contact.   The pressure-sensitive adhesive film dressing according to claim 1 or 2, wherein the removal portion is formed with a width of 0.1 mm to 20 mm.   The pressure-sensitive adhesive film dressing according to claim 1 or 2, wherein the support is formed wider than the substrate.   The substrate and the support, and the support peeling piece are formed in a tape shape, the support is formed wider than the substrate and protrudes sideways along the longitudinal direction of the substrate, The pressure-sensitive adhesive according to claim 1 or 2, wherein the support peeling piece is formed with a width narrower than that of the substrate, and the removal portion is provided along a longitudinal direction of the support peeling piece. Film dressing. The pressure-sensitive adhesive film dressing according to claim 1, wherein the release paper is provided with a cutting line for dividing the release paper, and the cutting line is provided at a position different from the removing portion.

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