JPH0585825U - Patch - Google Patents

Abstract

(57) [Summary] [Purpose] To obtain a patch that is smoother than ever before and can be easily applied while peeling off the liner. [Structure] A release liner for a patch has a cut line that bisects the liner at approximately the center, and perforations that extend in the same direction as the cut line are provided on both sides of the cut line.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a transdermal patch, for example.

[0002]

[Prior Art]

 For transdermal patches using agents such as cardiotonic drugs, a thin film support made of polyvinyl chloride, polyethylene terephthalate, polypropylene or the like is usually used. This is to prevent a small amount of the drug from being absorbed by the support and being no longer absorbed from the skin, and to improve the adhesion to the skin.

Conventionally, such patches have been provided with various structures such that the liner is easily peeled off, for example, by forming a cut line in the central part of the liner and peeling the liner from there to both ends. Met.

[0004]

[Problems to be solved by the device]

 However, in the conventional patch made of a thin film-shaped support, although the liner is easily peeled off as described above, the actual ease of sticking after the liner was peeled off was not considered. Therefore, when the conventional patch is applied to the skin, if the liner is peeled off, the end portion may be broken or wrinkled, which makes it difficult to stick to it.

An object of the present invention is to solve the above-mentioned problems and to obtain a patch in which the liner can be easily peeled off and attached easily.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, in the patch according to the invention of claim 1, a patch comprising a support, a drug layer spread on the support, and a release liner covering the drug surface, The liner has a cut line that bisects the liner at approximately the center and one perforation extending on the both sides of the cut line in the same direction as the cut line.

[0007]

[Action]

 The present invention is an adhesive patch in which perforations extending in the same direction as the cut line are provided on both sides of the cut line for peeling the liner provided in the substantially central portion. Therefore, when the liner is peeled from the cut line to both perforations and the exposed drug surface is pressed against the skin during application to the affected skin surface, both end portions of the liner are broken along the perforations. Therefore, by pressing the central part against the skin surface and pulling off the broken and peeled part of the liner and peeling off the remaining part, the drug surface can be smoothly applied to the skin without wrinkles or looseness. . Therefore, according to the present invention, the drug surface can be easily attached to the skin while peeling off the liner.

[0008]

【Example】

 An embodiment of the present invention will be described below. FIG. 1 is a view of a patch according to an embodiment of the present invention viewed from the side of a liner 1. As shown in the figure, the liner 1 of this embodiment is provided with a corrugated cut line 2 for peeling at approximately the center thereof, and perforations 3 are formed on both sides thereof.

The case of actually applying the patch according to this example to the skin will be described below with reference to FIG. First, the central part of the patch (a) consisting of the thin film-shaped support 5, the drug 4 spread on the support 5 and the liner 2 covering the surface of the drug 4 is drawn from the surface of the support 1 to the liner side. When pushed, the part of the cut line 2 formed in the center of the liner 1 is lifted from the surface of the medicine 4 (b).

When the liner 2 is peeled off from here to the perforations 3 on both sides, the liner 1a portion is folded outward at the perforations 3 (c). The exposed drug 4 surface in the central part is pressed against the affected skin 6 surface, and the fold liner 1a is pulled in the direction of the arrow in the figure while being peeled off while the remaining part is attached to the skin (d). .

By performing the above-described operation, the patch can be smoothly applied to the affected skin surface without breaking the edge of the patch or causing wrinkles. In the present embodiment, the liner peeling cut line 2 has a corrugated shape, but the shape is not limited to this.

The perforations 3 may have any lengths and intervals, but when the liner is peeled off, the creases are likely to be formed along the eyes, and the fold liner 1a is separated from the perforations when peeled off. It is desirable that it is not. This is because, if the liner is cut off at the perforation, the remaining liner is difficult to peel and stick.

In addition, in the process of manufacturing the patch according to the present invention, if the blade die is set so that perforations are formed at the same time when the cut line of the liner is formed, the manufacturing process does not increase and throughput decreases. There is no problem such as.

[0014]

[Effect of the device]

 As described above, the present invention has the effect that the application of the drug surface to the skin while peeling off the liner is very smooth and easy.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a liner of a patch according to an embodiment of the present invention.

FIG. 2 is an explanatory view showing a sticking operation of a patch according to an embodiment of the present invention.

[Explanation of symbols]

 1: Release liner 2: Cut line 3: Perforation 4: Drug 5: Support 6: Skin of affected area

Claims (1)

[Scope of utility model registration request] 1. A patch comprising a support, a drug layer spread on the support, and a release liner covering the drug surface, wherein the liner is a cut line that bisects the liner at approximately the center. And a perforation extending in the same direction as the cut line, one on each side of the cut line.