JP2008148838A - Dressing material and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dressing material having superior workability and sticking work efficiency, and preventing the impairment of the strength of a base material; and its manufacturing method. <P>SOLUTION: This dressing material is manufactured by a method having: a lamination process for providing a laminated body 10a constituted by laminating release paper 3 on one face of the base material 1 via an adhesive layer 2 and peelably laminating process paper 4 peelably on the other face; and a slit formation process for inserting a guide plate 12 having a blade part 13 perpendicularly between the base material 1 of the laminated body 10a and the process paper 4 with the blade part 13 positioned in the side of the process paper 4, relatively moving it along the face direction of the laminated body 10a and cutting through the process paper 4 while peeling it from the base material 1. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a dressing material such as an emergency bandage and a poultice, and a method for producing the same. In more detail, it is related with the dressing material provided with process paper, and its manufacturing method.

In general, for dressing materials (care products) such as emergency bandages, it is preferred to use a soft and thin base material because it is less uncomfortable when applied to the skin. However, when a soft and thin base material is used, handling is difficult and there is a problem in workability during production. Further, when the release paper is peeled off from the adhesive surface, the adhesive surfaces are easily bonded to each other, and a problem is likely to occur in the sticking workability at the time of use. Moreover, since elongation is large, there exists a problem that it is affixed on an affected part in the stretched state, and a feeling of pressure is felt after sticking.
Therefore, an emergency bandage in which process paper is laminated on the surface opposite to the adhesive surface of a flexible and thin base material is used (Patent Document 1).
The emergency adhesive bandage with laminated process papers can improve the overall rigidity with the process papers, so that processability and workability of pasting are improved. Moreover, since the elongation of the whole base material can be suppressed, a feeling of pressure after sticking hardly occurs.
JP-A-8-154965

However, the dressing material in which the process paper is laminated needs to peel the process paper from the base material after being attached to the affected part. At this time, the peeling allowance has to be made by the user himself / herself at the end of the dressing material, which is troublesome. Moreover, it is easy to damage a base material when making this peeling allowance. Thus, the problem remained in the sticking workability.
There is also a commercially available emergency adhesive bandage in which a slit is provided in the process paper so that the process paper can be peeled off starting from the slit. However, the situation that the user must make the peeling allowance is the same as when there is no slit. Furthermore, there is a problem that the slits are not only on the process paper but also on the upper surface of the base material, and the base material is easily cut off.
This invention is made | formed in view of the said situation, and it aims at providing the dressing material which is excellent in workability and sticking workability | operativity, and the strength of a base material is not impaired, and its manufacturing method.

The present invention includes the following configurations.
[1] A laminating step of obtaining a laminate in which release paper is laminated on one surface of a substrate via an adhesive layer and process paper is releasably laminated on the other surface, and a guide in which a blade portion is vertically provided By inserting the plate between the base material of the laminate and the process paper so that the blade portion is on the process paper side and relatively moving along the surface direction of the laminate, the process paper is slit and the The manufacturing method of the dressing material characterized by having the slit formation process which forms the peeling part from the base material in the slit vicinity.

[2] A release paper is laminated on one surface of the substrate via an adhesive layer, and a process paper is detachably laminated on the other surface. The process paper has a slit and a base formed in the vicinity of the slit. A dressing material comprising a part peeled from the material.
[3] The dressing material according to [2], wherein a pad is attached to a part of the adhesive layer on the release paper side.

Since the dressing material manufacturing method of the present invention uses process paper, it is excellent in processability and workability for attaching the resulting dressing material. Moreover, since a slit is formed by inserting a blade from the base material side of the process paper, the strength of the base material is not impaired. Furthermore, since a peeling allowance can be formed in the vicinity of the slit at the time of forming the slit, a dressing material with improved adhesion workability can be manufactured.
The dressing material of the present invention is excellent in workability and sticking workability, and the strength of the base material is not impaired.

[Dressing material]
A first embodiment of the dressing material of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view of a dressing material 10 according to this embodiment, and FIG. 2 is a cross-sectional view taken along the line II-II in FIG. FIG. 2 emphasizes the thickness direction for convenience of explanation.

  As shown in FIGS. 1 and 2, in the dressing material 10 of the present embodiment, the release paper 3 is laminated on one surface of the base material 1 via the adhesive layer 2, and the process paper 4 can be peeled on the other surface. It is configured by stacking. The process paper 4 has a slit 5, and peeled portions 6 and 6 from the substrate 1 are formed in the vicinity of the slit 5. Further, the process paper 4 is printed with arrows 7, 7... For guiding a peeling direction when the process paper 4 is peeled off using the peeling portions 6 and 6 as a peeling margin.

The base material 1 is preferably flexible and thin because it is less uncomfortable when applied to the skin. Moreover, in order to prevent the affected part from stuffiness, it is preferable that it is excellent in air permeability. Furthermore, in order to protect an affected part from external water | moisture content, it is preferable that it is excellent in waterproofness.
As the material of the substrate 1, urethane resin, polyamide resin, non-woven fabric, vinyl chloride resin, and polyolefin resin are preferable because flexibility is easily satisfied. Of these, urethane resins, polyamide resins, and nonwoven fabrics are particularly preferable because of their breathability.
The base material 1 may contain various strength control agents, extenders such as inorganic powders, dyes, pigments and the like. Moreover, what was manufactured by any method of uniaxial stretching, biaxial stretching, and non-stretching may be used. Further, not only one layer but also a multilayer structure in which a plurality of different or similar layers are stacked may be used.
The thickness of the substrate 1, since the easily obtained flexibility and breathability, preferably 150 g / ^{m 2} or less, 100 g / ^{m 2} or less, more preferably, 80 g / ^{m 2} or more is more preferable. On the other hand, since the strength is easily obtained, preferably 15 g / ^{m 2} or more, 20 g / ^{m 2} or more preferably, 30 g / ^{m 2} or more is more preferable.

When the dressing material 10 of the present embodiment is a bandage, the adhesive layer 2 is composed of an adhesive for adhering the base material 1 to an affected area serving as an adherend.
Examples of the pressure sensitive adhesive include rubber pressure sensitive adhesive, acrylic pressure sensitive adhesive, and silicon pressure sensitive adhesive. In consideration of the adhesiveness and adhesive strength between the substrate 1 and the adherend and the adhesive, an isocyanate-based crosslinking agent, a metal chelate-based crosslinking agent, a tackifier, or the like may be added as appropriate. From the viewpoint of reducing skin irritation, it is preferable to set the peel strength of the pressure-sensitive adhesive low. Moreover, it is preferable to set the molecular weight of the pressure-sensitive adhesive component high to suppress the penetration into the skin.
In order to obtain moisture permeability, the thickness of the pressure-sensitive adhesive layer 2 using a pressure-sensitive adhesive is preferably 50 μm or less, and more preferably 30 μm or less. On the other hand, in order to obtain a necessary adhesive force, 10 μm or more is preferable, and 20 μm or more is more preferable.

When the dressing material 10 of the present embodiment is a poultice, the adhesive layer 2 can be composed of a poultice such as a poultice or a plaster.
The poultice may appropriately contain components having analgesic and anti-inflammatory properties such as methyl salicylate, dl-camphor, l-menthol (cold compress component), capsicum extract (hot compress component), indomethacin and the like.

As the release paper 3, known materials used for dressing materials can be used. Examples of the material of the release paper 3 include paper and film. The release paper 3 is preferably a single-sided release paper having a release layer on one side.
In addition, the release paper 3 may have a slit so that the release paper 3 can be easily peeled at the time of use. Alternatively, the two release papers 3 may be laminated on the adhesive layer 2 so that the ends overlap each other.

Examples of the process paper 4 include those having a pseudo-adhesive layer that pseudo-adheres to the substrate 1 on one side, polyester nonwoven fabric, polypropylene nonwoven fabric, polypropylene film, polyethylene terephthalate film, polyethylene film, and the like.
The thickness of the casting papers 4, considering the use adaptability, preferably 100 g / ^{m 2} or less, 50 g / ^{m 2} or less is more preferable. On the other hand, in consideration of workability, 15 g / m ² or more is preferable, and 20 g / m ² or more is more preferable.
The base material 1 and the process paper 4 are laminated so as to be peelable. The peeling force of both is preferably 20 g / 50 mm to 100 g / 50 mm at a peeling speed of 0.3 m / min.
As shown in FIGS. 1 and 2, the slit 5 in the present embodiment is formed along the length direction at the center in the width direction of the process paper 4. However, the formation position of the slit 5 is not limited, and the slit 5 may be formed along the width direction or may be formed near any side surface.

  When using the dressing material 10 of this embodiment, the release paper 3 is peeled off, the adhesive layer 2 is exposed, and is stuck to the affected part. Thereafter, the process paper 4 is peeled off. When the process paper 4 is peeled off, the peeled portions 6 and 6 may be picked up by hand as a peeling allowance, and the process paper 4 may be drawn toward both sides of the slit 5 in accordance with the guidance of arrows 7, 7. Therefore, according to this embodiment, the process paper 4 can be peeled off very easily.

  Next, a second embodiment of the dressing material of the present invention will be described with reference to FIG. About a perspective view, since it is equivalent to 1st Embodiment, FIG. 1 is used. The same components as those of the first embodiment are denoted by the same reference numerals as those in FIGS. 3 is a cross-sectional view taken along the line II-II of FIG. 1 in the present embodiment. As in FIG. 2, FIG. 3 emphasizes the thickness direction for convenience of explanation.

As shown in FIG. 3, the dressing material 10 ′ of the present embodiment is provided with a pad 8 made of gauze, nonwoven fabric, cotton or the like on a part of the adhesive layer 2 on the release paper 3 side. The pad 8 may contain a drug such as a disinfectant. In this embodiment, the release paper 3 is divided into two release papers 3 a and 3 b, and the ends of the release papers 3 a and 3 b overlap on the pad 8.
The dressing material 10 ′ of the present embodiment is adhered so that the release papers 3a and 3b are peeled to expose the adhesive layer 2 so that the pad 8 hits the affected area. Then, the process paper 4 is peeled similarly to the dressing material 10 of FIG.

In addition, in the dressing material 10 ′ of the second embodiment, the release paper 3 may be one sheet that is not divided as in the dressing material 10 of the first embodiment. Further, the end portions of the release papers 3a and 3b may not be overlapped on the pad 8 simply by being divided into release papers 3a and 3b by slits.
Moreover, in the dressing material 10 of 1st Embodiment, the release paper 3 may be divided | segmented into 2 sheets similarly to dressing material 10 'of 2nd Embodiment. When divided, the release paper 3 may be simply divided into two sheets by slits, or the two divided ends may overlap each other.

[Method of manufacturing dressing]
The manufacturing method of the dressing material 10 of 1st Embodiment is the laminated body by which the release paper 3 was laminated | stacked through the adhesion layer 2 on one side of the base material 1, and the process paper 4 was laminated | stacked on the other side so that peeling was possible. And a slit forming step of forming, on the process paper 4, the slit 5 and the peeled portions 6 and 6 from the substrate 1 in the vicinity of the slit 5.

Although there is no limitation in particular in a lamination process, the base material with the process paper which laminated | stacked the base material 1 and the process paper 4 previously is obtained, and this base material with a process paper and release paper are stuck through the adhesion layer 2. Is preferred.
As a method of obtaining a base material with process paper, a method of sticking the melted material of the base material 1 to the process paper 4 using a thermoplastic resin such as a polyolefin film as the material of the base material 1; A method of applying a casting solution containing these materials to the process paper 4 and drying it using a material widely used in the production of cast films such as an organosol of vinyl chloride resin or a urethane resin solution; For example, a method of pseudo-adhering the pseudo-adhesive layer to the substrate 1 may be used.

  As a method of adhering the substrate with process paper and the release paper 3 through the adhesive layer 2, the adhesive or poultice is directly applied to the substrate 1 of the substrate with process paper, and then the release paper is laminated. Either a direct method or a transfer method in which an adhesive or a poultice is applied to the release paper 3 in advance and then the base material 1 is laminated is possible.

  The slit formation process which forms the slit 5 and the peeling parts 6 and 6 in the process paper 4 of the obtained laminated body is demonstrated using FIG. 4, FIG. FIG. 4 is a perspective view of the cutting tool 20 used in the slit forming process, and FIG. 5 is a perspective view in the middle of forming the slit 5 in the laminate 10a using the cutting tool 20.

  As shown in FIG. 4, the cutting tool 20 includes a shank 11, a guide plate 12 that is attached to the tip of the shank 11 at a substantially right angle, and a blade portion 13 that is suspended from the guide plate 12. The guide plate 12 has a shape in which the front (lower left direction in FIG. 4) at the time of relative movement is slightly upward. The blade portion 13 has a front end at the time of relative movement of the guide plate 12 as a front end, and a rear end attached to the shank 11. The blade portion 13 is provided with a substantially arc-shaped cutting blade 13a that gradually rises from the tip to the shank 11.

  As shown in FIG. 5, the guide plate 12 of the cutting tool 20 is inserted between the base material 1 of the laminate 10a and the process paper 4 with the blade portion 13 as the process paper side, and the laminated body 10a remains in the inserted state. The guide plate 12 is moved relative to the stacked body 10a along the surface direction. Thereby, the process paper 4 of the part which the blade part 13 passed is cut open, and the slit 5 is formed. At this time, since the blade portion 13 exists on the opposite side of the guide plate 12 from the base material 1, the blade does not enter the base material 1. Further, since the process paper 4 is peeled from the base material 1 in the portion through which the guide plate 12 has passed, peeled portions 6 and 6 are formed in the vicinity of both sides of the slit 5.

In addition, after a slit formation process, in order to set it as a desired shape and magnitude | size, a cutting | disconnection, punching, etc. can be performed suitably.
In addition, in order to have a configuration in which two release papers 3 are laminated on the adhesive layer 2 so that the end portions overlap each other, the release paper 3 is once peeled, and then the release paper 3 once peeled is cut. What is necessary is just to cover the adhesive layer 2 so that the edges of the two release papers 3 overlap each other, or two release papers 3 prepared separately.
Moreover, in FIG. 5, although the laminated body 10a was shown as a sheet-like thing, the direction which makes the laminated body 10a continuous web form is easy to handle on a manufacturing process.

  The dressing material 10 ′ according to the second embodiment is manufactured in the same manner as the dressing material 10 according to the first embodiment until the slit forming step, and then the release paper 3 is peeled off once, and the pad 8 of the required size is removed. Mount on the adhesive layer 2. After that, the release paper 3 once peeled is cut into two sheets, or two separate release papers 3 are used as the release papers 3a and 3b. Cover the adhesive layer 2 so as to overlap. Thereafter, in order to obtain a desired shape and size, cutting, punching, or the like is appropriately performed.

It is a perspective view of the dressing material which concerns on 1st Embodiment of this invention. It is II-II sectional drawing of FIG. It is sectional drawing of the dressing material which concerns on 2nd Embodiment of this invention. It is a perspective view of the bite used for a slit formation process. It is a perspective view in the middle of forming the slit.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Base material, 2 ... Adhesive layer, 3 ... Release paper, 4 ... Process paper, 5 ... Slit, 6 ... Release part,
7 ... arrow, 8 ... pad, 10, 10 '... dressing material, 10a ... laminated body,
11 ... Shank, 12 ... Guide plate, 13 ... Blade, 13a ... Cutting blade, 20 ... Bite

Claims (3)

A lamination step of obtaining a laminate in which release paper is laminated on one side of the base material via an adhesive layer and process paper is laminated on the other side in a peelable manner;
Inserting the guide plate with the blade portion suspended between the base material of the laminate and the process paper so that the blade portion is on the process paper side, and relatively moving along the surface direction of the laminate A process for producing a dressing material, comprising a slit forming step of forming a slit on a process paper and a separation portion from the base material in the vicinity of the slit. Release paper is laminated on one side of the substrate via an adhesive layer, and process paper is laminated on the other side in a peelable manner,
The said process paper has a slit and the peeling part from the base material formed in the vicinity of this slit, The dressing material characterized by the above-mentioned.   The dressing material according to claim 2, wherein a pad is attached to a part of the adhesive layer on the release paper side.

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