JP2588236Y2 - Drug sticking sheet - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drug application sheet which is used for treatment by applying a transdermal preparation or a cataplasm to the skin.

[0002]

2. Description of the Related Art When a drug or a cataplasm is applied to the skin as an external preparation, it is necessary to stabilize the skin by attaching a base cloth on which the drug or the cataplasm is laminated. For this reason, the base cloth coated with the medicine is pressed down and adhered to the skin with a bandage or the like from the top surface, but it is inconvenient because it is necessary to easily make a bandage or the like for pressing down on the skin.

When the drug layer and the pressure-sensitive adhesive layer are integrally formed to facilitate the use, as shown in FIG. 3, the pressure-sensitive adhesive base cloth 2 on which the pressure-sensitive adhesive layer 1 is formed is used. Then, a drug base cloth 4 coated with the drug 3 and having a size enough to leave the peripheral portion of the pressure-sensitive adhesive base cloth is placed and fixed thereon, and the entire surface thereof is covered with a release paper 5 to form a sticking sheet 6. At the time of use, the release paper 5 is peeled off, and the drug-adhering sheet is attached to the skin and fixed by the adhesive portion remaining around the drug 3.

[0004] Further, as shown in FIG. 4, on the base cloth 4, a missing portion 7 is formed at the center and an adhesive layer 6 is applied on the surface.
The base layer 8 formed by the transfer is adhered, the medicine 3 is accommodated in the lacking portion 7, and the adhesive layer 6 and the surface of the medicine layer 3 are covered with the peelable protective paper 9 to form the medicine sticking sheet 10. At the time of use, the peelable protective paper 9 is peeled off and adhered to the skin with the adhesive layer 6 to be fixed.

[0005]

As described above, when the drug layer portion and the pressure-sensitive adhesive layer portion are integrally formed to facilitate the use, a drug-coated base cloth and a pressure-sensitive adhesive are coated. Although the base fabric and the base fabric are separately formed, they are integrated, and the base fabric is covered with a release paper. However, such a configuration has a drawback in that the manufacturing is troublesome and costly.

Further, as shown in FIG. 4, peelable pressure-sensitive adhesive layer of the base layer surface obtained by containing medicament to the lack portion of the central portion
In the case of a drug-adhered sheet to which protective paper is attached , since a base layer having a thickness exists, the drug layer 3 and the pressure-sensitive adhesive layer
There is no difference in height, so the drug layer is simply attached to the skin
And there is a disadvantage that the pressing force of the drug layer against the skin is inevitably reduced.

[0007]

Agents attached by the present invention SUMMARY OF THE INVENTION The sheet <br/> over DOO, in order to solve the above problems is configured as follows. Base cloth made of such nonwoven fabric, an agent which is superimposed on the base fabric, the superimposed drug layer enclosing the pressure-sensitive adhesive layer formed on its periphery, provided surrounding the drug layer to the adhesive layer Release paper having substantially the same thickness as the drug layer ,
Said agent and said release paper and bonded protective film, the more configured drug adhered sheet covering the over the entire release paper.

[0008]

In the medicine sticking sheet according to the present invention, a plaster (drug part) is arranged at the center on a single base cloth so that an adhesive part is not overlapped on a peripheral part thereof, and the part is omitted. A release paper having substantially the same thickness as the medicine to be contained is superimposed, and the entire surface is composed of a protective film bonded to the release paper covering the entire surface, so that the protective film can be peeled off at the time of use. if, release paper leaving the drug and the adhesive layer which are superimposed on the base fabric around the central portion also will be removed. Therefore, in use, if the adhesive portion of the periphery of the drug-adhering sheet is pressed against the skin , the thick drug in the center portion is also pressed against the skin.
Will be, in the drug layer that you pressed securely to the skin,
Good penetration of the drug into the skin.

[0009]

1 is a cross-sectional view showing the structure of a medicine sticking sheet according to the present invention, FIG. 2 is an exploded plan view of FIG. 1, (a) shows the shape of a release paper 12, and (b) shows the base cloth 4 . Shows a state in which a release paper 12 is bonded with an adhesive layer 6 and the medicine 3 is accommodated in a missing portion 7 in the middle of the release paper, and (c) shows a protective film 9 covering the whole.

As shown in FIGS. 1 and 2, in the medicine sticking sheet 11 according to the present invention, the pressure-sensitive adhesive layer 6 is accommodated on the periphery of the base cloth 4, and the medical drug 3 is accommodated on the pressure-sensitive adhesive layer 6. A release paper 12 (having a thickness substantially equal to the thickness of the drug layer 3) having the central missing portion 7 is superimposed, and the drug 3 is accommodated in the central missing portion 7. Note that an adhesive layer 13 is applied on the upper surface of the release paper 12, and the entire surface is covered with the protective film 9 using the adhesive layer 13, thereby forming the drug application sheet 11.

In use of such a drug-adhering sheet 11, when the protective film 9 is peeled off from the drug-adhering sheet 11 shown in a plan view in FIG. Since the adhesive sheet 6 is peeled off from the adhesive layer 6, the drug-adhered sheet 11 has only the drug layer 6 at the center and the adhesive layer 6 at the periphery thereof. Can be securely joined by pressure welding.

The release paper 12 may have a similar thickness as appropriate according to the thickness of the drug layer to be used.
Thick paper or embossed thickened paper may be used. As the release paper, use is made of a material whose lower surface has releasability and whose upper surface can be bonded to the protective film. Of course, it is necessary to have a chemical-permeable property.

[0013] As a method of manufacturing the drug-adhering sheet, for example, a release paper is adhered to a protective paper in a frame shape, a drug is accommodated in a central portion of the release paper, and the frame-shaped release paper is placed on a base cloth. An adhesive similar to the edge frame portion may be printed, and the two may be overlapped and joined. Although it may be manufactured one by one, a large number may be manufactured by arranging them continuously in the left, right, front and rear directions, and then cut and separated individually, or another manufacturing means may be used as appropriate.

[0014]

According to the present invention, a medical agent and a pressure-sensitive adhesive layer are arranged on one base cloth so as not to be mixed with each other on the periphery thereof. The release paper is superimposed, and the surface of the drug-adhered sheet is covered with the protective sheet with the adhesive applied to the upper surface of the release paper. The contained release paper can also be peeled off from the base cloth, and immediately a thick drug layer is formed around the periphery.
The wear agent layer can push only on skin, it ensures the drug may be further easily absorbed into the skin.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a configuration of a medicine sticking sheet according to the present invention.

FIG. 2 is an exploded plan view of FIG.

FIG. 3 is a cross-sectional view showing a conventional drug application sheet.

FIG. 4 is a cross-sectional view showing a conventional drug-adhering sheet.

[Explanation of symbols]

 Reference Signs List 3 Drug layer 4 Base cloth 6 Adhesive layer 7 Center missing part 9 Protective film 11 Drug sticking sheet 12 Release paper 13 Adhesive layer.

Claims (1)

(57) [Scope of request for utility model registration] 1. A base cloth made of such nonwoven fabric, an agent said superimposed on the base fabric, the superimposed drug layer enclosing around the formed pressure-sensitive adhesive layer thereof, the drug layer to the adhesive layer substantially the same thickness of the release paper and the drug layer provided to surround the <br/>, the release paper and bonded protective film in which the drug and covers the entire release paper, a more structured drug adhered sheet .