KR20250012808A - Medical Dressing Patch And Method For Manufacturing The Same - Google Patents

Abstract

The present invention relates to a medical dressing and a method for manufacturing the same, and more specifically, to a medical dressing including: a pad portion; a backing film positioned to overlap one surface of the pad portion; a first film layer positioned to overlap the other surface of the pad portion and having an edge region that overlaps the backing film; and a second film layer positioned on an outer surface of the first film layer and in close contact with a wound; wherein the first film layer has first ventilation holes and second ventilation holes, and the second film layer has third ventilation holes and fourth ventilation holes, and the first ventilation holes and the third ventilation holes are positioned in a region that overlaps the pad portion, and the second ventilation holes and the fourth ventilation holes are positioned in a region that does not overlap the pad portion. The present invention relates to a medical dressing and a method for manufacturing the same, characterized in that:

Description

Medical dressing material and method for manufacturing the same {Medical Dressing Patch And Method For Manufacturing The Same}

The present invention relates to a medical dressing and a method for manufacturing the same, and more specifically, to a medical dressing which is capable of simultaneously facilitating adhesion to an affected area and absorption of exudate, and minimizing irritation or damage to the skin, and a method for manufacturing the same.

In general, medical dressings are widely used to protect and treat skin wounds such as minor burns, wounds, and trauma. That is, medical dressings function to prevent further contamination by reducing heat evaporation and moisture loss from the wound surface, and provide a function to reduce bacterial growth within the wound.

In the past, disposable gauze-shaped medical bands were used as such medical dressing materials. Since the bands extend to both sides of the gauze that come into contact with the wound and adhere to the skin, the gauze can be fixed without coming off the skin while in contact with the wound.

Meanwhile, dressings that can more actively protect and treat wounds have been developed and used recently.

A medical dressing comprises a pad portion that directly contacts a wound and absorbs and retains exudate from the wound, and a first film layer that is positioned on the upper portion of the pad portion and is attached to the wound so that the pad portion can be fixed to the wound site.

However, when the affected area is large, a pad with a large area that can cover the entire affected area is required, and this causes a phenomenon in which the space between the affected area and the pad is lifted, which poses a problem in that the pad cannot perform its function sufficiently.

Korean Patent Publication No. 2011-0076205

In order to solve the above problems, the present invention aims to provide a medical dressing material that can reliably adhere to a wound even when the pad area is large, and a method for manufacturing the same.

In addition, the present invention aims to provide a medical dressing having a structure that facilitates absorption of exudate from a wound and a method for manufacturing the same.

In addition, the present invention aims to provide a medical dressing material and a method for manufacturing the same that can minimize damage or irritation to the skin.

In order to solve the above problems, a medical dressing material according to the present invention comprises: a pad portion (100); a backing film (200) positioned to overlap with one surface of the pad portion (100); a first film layer (320) positioned to overlap with the other surface of the pad portion (100) and having a portion of an edge area overlapping with the backing film (200); And a second film layer (330) positioned on the outer surface of the first film layer (320) and in close contact with the affected area; wherein the first film layer (320) is provided with a first ventilation hole (321) and a second ventilation hole (322), and the second film layer (330) is provided with a third ventilation hole (331) and a fourth ventilation hole (332), and the first ventilation hole (321) and the third ventilation hole (331) are positioned in an area overlapping the pad portion (100), and the second ventilation hole (322) and the fourth ventilation hole (332) are positioned in an area not overlapping the pad portion (100).

In addition, in the medical dressing material according to the present invention, the areas of the first ventilation hole (321) and the third ventilation hole (331) are the same, and the areas of the second ventilation hole (322) and the fourth ventilation hole (332) are the same.

In addition, in the medical dressing material according to the present invention, the area of the first ventilation hole (321) is characterized by being larger than the area of the second ventilation hole (322).

In addition, in the medical dressing material according to the present invention, the second film layer (330) is made of silicone material, and an adhesive layer of acrylic material is applied to the inner surface of the backing film (200).

In addition, a method for manufacturing a medical dressing according to the present invention comprises: a first step of preparing a pad portion (100), a backing film (200), a first film layer (320) having a plurality of first ventilation holes (321) and second ventilation holes (322) formed therein, a second film layer (330) having a plurality of third ventilation holes (331) and fourth ventilation holes (332) formed therein and having one surface in close contact with the first film layer (320), and a second release film (340) having a plurality of fifth ventilation holes (341) and sixth ventilation holes (342) formed therein and having the other surface of the second film layer (330); a second step of positioning a backing film (200) so as to overlap one surface of the pad portion (100); a third step of overlapping the first film layer (320) on the other surface of the pad portion (100) and a portion of an edge area of the backing film (200); and a fourth step of separating the second heteromorphic film (340) to expose the second film layer (330) to the outside.

In addition, in the method for manufacturing a medical dressing according to the present invention, in the first step, a step 1a of preparing a fabric film (300) laminated in the order of a first release film (310), a first film layer (320), a second film layer (330), and a second release film (340) from below; a step 1b of forming a first cut area (A) by punching with a first cutter (520) having the same shape as the first ventilation hole (321), the third ventilation hole (331), and the fifth ventilation hole (341), and forming a second cut area (B) by punching with a second cutter (530) having the same shape as the second ventilation hole (322), the fourth ventilation hole (332), and the sixth ventilation hole (342); And it is characterized by including a step 1c of forming the first ventilation hole (321) to the sixth ventilation hole (342) by separating the first release film (310) from the first film layer (320) and removing the first cut area (A) and the second cut area (B).

In addition, in the method for manufacturing a medical dressing according to the present invention, in the step 1b, it is characterized in that one of the first incision area (A) and the second incision area (B) is formed first or simultaneously.

In addition, in the method for manufacturing a medical dressing according to the present invention, the first film layer (320) is made of a polyurethane (PU) material, and the second film layer (330) is made of a silicone material.

In addition, in the method for manufacturing a medical dressing according to the present invention, the cross-sectional area of the first cutter (520) is characterized by being larger than the cross-sectional area of the second cutter (530).

In addition, in the method for manufacturing a medical dressing according to the present invention, the first ventilation hole (321) and the third ventilation hole (331) are positioned in an area overlapping the pad portion (100), and the second ventilation hole (322) and the fourth ventilation hole (332) are positioned in an area not overlapping the pad portion (100).

In addition, in the method for manufacturing a medical dressing according to the present invention, it is characterized in that a plurality of incision lines (110) having a predetermined shape are formed in the pad portion (100) in the first step.

In addition, in the method for manufacturing a medical dressing according to the present invention, the incision line (110) is characterized in that it is formed to a certain depth from one side of the pad portion (100) in close contact with the backing film (200) toward the other side.

In addition, in the method for manufacturing a medical dressing according to the present invention, it is characterized by further performing a sixth step of forming a memo line (210) on a certain area of the outer surface of the backing film (200).

According to the medical dressing material of the present invention and the method for manufacturing the same, a backing film is positioned on one side of the pad portion, while a first film layer and an adhesive layer made of silicone are sequentially provided on the other side, so that the pad portion can always maintain a state of close contact with the affected area, which has the advantage of allowing the pad portion to be maintained.

In addition, according to the medical dressing material of the present invention and the method for manufacturing the same, the second film layer in direct contact with the affected area is made of silicone material, so that not only is the adhesive strength with the affected area excellent, but irritation or damage to the skin can also be minimized.

In addition, according to the medical dressing material of the present invention and the manufacturing method thereof, a plurality of ventilation holes are provided in the first film layer and the second film layer located on the other side of the pad portion, so that not only can exudate generated in the affected area easily move to the pad portion, but also skin irritation can be minimized even if attached to the affected area for a long period of time, which has the advantage of being possible.

In addition, according to the medical dressing material of the present invention and the method for manufacturing the same, the pad portion has a number of incision lines, so that not only is the adhesion excellent even when the affected area is curved, but there is also an advantage in that it is easier for the patient to move around.

Figure 1 is a perspective view of a medical dressing material according to the present invention as viewed from the upper side.
Figure 2 is a perspective view of the medical dressing material illustrated in Figure 1 when turned over.
Figure 3 is a plan view of a pad portion constituting a medical dressing material according to the present invention.
Figure 4 is a cross-sectional view taken along line AA of Figure 1.
Figure 5 is a perspective view for explaining a method of using a medical dressing according to the present invention.
FIG. 6 is a perspective view of the first film layer and the second film layer constituting the medical dressing material illustrated in FIG. 1 as viewed from the upper side.
Figure 7 is a flow chart for explaining a method for manufacturing a medical dressing material of the present invention.
Figure 8 is a flow chart for explaining a method of forming ventilation holes in the first film layer and the second film layer.

It should be understood that the terms “include,” “have,” or “equip” in this application are intended to specify the presence of a feature, number, step, component, part, or combination thereof described in the specification, and do not exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

When it is said that an element is "connected" or "connected" to another element, it should be understood that it may be directly connected or connected to that other element, but that there may be other elements in between. On the other hand, when it is said that an element is "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between. Other expressions that describe the relationship between elements, such as "between" and "directly between" or "adjacent to" and "directly adjacent to", should be interpreted similarly.

In addition, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms defined in commonly used dictionaries, such as those defined in common dictionaries, should be interpreted as having a meaning consistent with the meaning they have in the context of the relevant art, and shall not be interpreted in an idealized or overly formal sense, unless explicitly defined in this application.

Hereinafter, a medical dressing material and a manufacturing method thereof according to the present invention will be described with reference to the attached drawings. The same reference numerals are used for the same components in the drawings, and duplicate descriptions of the same components are omitted.

FIG. 1 is a perspective view of a medical dressing according to the present invention as viewed from the upper side, FIG. 2 is a perspective view of the medical dressing illustrated in FIG. 1 as viewed upside down, and FIG. 3 is a plan view of a pad portion constituting the medical dressing according to the present invention. In addition, FIG. 4 is a cross-sectional view taken along line A-A of FIG. 1, and FIG. 5 is a perspective view for explaining a method of using the medical dressing according to the present invention.

As illustrated in FIGS. 1 to 4, a medical dressing material according to the present invention may be configured to include a pad portion (100), a backing film (200), a first film layer (320), a second film layer (330), and a third release film (400).

First, the pad portion (100) is intended to cover the patient's affected area to prevent infection or to help the wound heal quickly, has a predetermined thickness and area, and may be composed of known absorbent materials such as gauze, cotton, non-woven fabric, hydrocolloid, hydro gel, polyurethane foam, polyacrylate, polyvinyl alcohol, polyvinyl pyrrolidone, and expandable synthetic polymers.

Here, it is preferable that a plurality of cutting lines (110) having a certain shape are formed on the pad portion (100). Specifically, it is preferable that the cutting lines (110) are formed from one side of the pad portion (100) that comes into contact with the backing film (200) toward the other side that comes into contact with the first film layer (320), and at this time, it is more preferable that the cutting lines (110) do not completely penetrate the pad portion (100). When the cutting lines (110) as described above are provided on the pad portion (100), even if attached to a joint or a curved affected area, it is easy to bend, so excellent adhesion can be maintained, making it easy to absorb exudate and allowing freer movement of the affected area.

Although the shapes viewed from above in FIG. 3 are described as semi-elliptical and wedge-shaped as examples, the shape of the cutting line (110) is not particularly limited as long as the aforementioned function can be achieved.

The backing film (200) has a thickness of approximately 0.015 to 0.090 mm and is positioned to overlap one side of the pad portion (100) to form the opposite side of the contact surface of the affected area, and serves to protect the pad portion (100) from foreign substances including viruses or bacteria. The backing film (200) may be provided with a material that has waterproof/moisture-proof functions and flexibility and elasticity, and may be manufactured from, for example, polyurethane, polyethylene, a styrene-isoprene copolymer, a styrene-butadiene block copolymer, polyvinyl chloride, polyamide, or a mixture thereof. Although not shown in the drawing, a plurality of ventilation holes may be additionally formed to allow outside air to pass through.

In addition, it is preferable that an adhesive layer (not shown), for example, an adhesive layer made of acrylic material, be provided on the inner surface of the backing film (200) facing the pad portion (100) so that it can be firmly bonded to the pad portion (100) and the first film layer (320).

Meanwhile, a memo column (210) may be additionally provided on the outer surface of the backing film (200). The memo column (210) may be used to record the time of attachment of the medical dressing material so that the replacement time can be known. Of course, it is obvious that other necessary information, such as the size of the wound and the time when the dressing material was first attached, can be recorded.

Continuing, the first film layer (320) is positioned on the inner surface of the backing film (200), that is, on the other surface of the pad portion (100), and some of the edge area overlaps with the inner surface of the backing film (200), so that the pad portion (100) is interposed between the backing film (200) and the first film layer (320).

Here, the first film layer (320) is composed of a polyurethane (PU) material having a thickness of approximately 0.01 to 0.09 mm.

The second film layer (330) is positioned on the outer exposed surface of the first film layer (320), that is, on the opposite surface that is not in contact with the pad portion (100), and is in direct contact with the affected area.

At this time, the second film layer (330) is preferably made of silicone material with a thickness of approximately 0.04 to 0.12 mm, as this provides excellent adhesion to the affected area and is advantageous in minimizing irritation or damage to the skin.

Meanwhile, the first film layer (320) and the second film layer (330) are provided with a plurality of ventilation holes so that exudate discharged from the wound can pass through and move to the pad portion (100). Specifically, a plurality of first ventilation holes (321) are formed in the central portion of the first film layer (320), more specifically, in the region overlapping with the pad portion (100), while a plurality of third ventilation holes (331) are provided in the second film layer (330), and the first ventilation holes (321) and the third ventilation holes (331) have the same inner diameter and are in communication with each other.

Also, at the edges of the first film layer (320) and the second film layer (330), more specifically, at the portion where the first film layer (320) and the second film layer (330) directly contact each other, second ventilation holes (322) and fourth ventilation holes (332) having the same inner diameter and being in communication with each other are provided, respectively. These second ventilation holes (322) and fourth ventilation holes (332) are provided to prevent skin troubles as much as possible. Although the second film layer (330) made of skin-friendly silicone material comes into contact with the affected area, it can irritate the skin when patients with sensitive skin use the dressing for a long time.

Meanwhile, when the first to fourth ventilation holes (321) to (332) are circular, it is preferable that the first ventilation hole (321) be larger than the second ventilation hole (322) to facilitate movement of the leachate. For example, the first ventilation hole (321) has an inner diameter of 2 to 10 mm, and the second ventilation hole (322) has an inner diameter of 0.5 to 4 mm.

Although the drawings show the vent holes as being circular, this is only an example and the shape can be changed in any way.

The third release film (400) is a layer for protecting the second film layer (330), and is maintained in a fixed state on the second film layer (330) before use, and is removed before being attached to the affected area (see FIG. 5). Although the drawing shows the third release film (400) as being composed of one sheet, it may be composed of two sheets with some of the middle portions overlapping each other.

FIG. 6 is a perspective view of the first film layer and the second film layer constituting the medical dressing material illustrated in FIG. 1 as viewed from the upper side, FIG. 7 is a flow chart for explaining a method for manufacturing the medical dressing material of the present invention, and FIG. 8 is a flow chart for explaining a method for forming ventilation holes in the first film layer and the second film layer.

With reference to these drawings 6 to 8, a method for manufacturing a medical dressing according to the present invention will be described.

The method for manufacturing a medical dressing according to the present invention comprises: a first step of preparing a pad portion (100), a backing film (200), a first film layer (320) having a plurality of first ventilation holes (321) and second ventilation holes (322) formed therein, a second film layer (330) having a plurality of third ventilation holes (331) and fourth ventilation holes (332) formed therein and having one surface in close contact with the first film layer (320), and a second release film (340) having a plurality of fifth ventilation holes (341) and sixth ventilation holes (342) formed therein and having the other surface of the second film layer (330); a second step of positioning the backing film (200) so as to overlap one surface of the pad portion (100); a third step of overlapping the first film layer (320) on the other surface of the pad portion (100) and a portion of an edge area of the backing film (200); It can be configured to include a fourth step of separating the second release film (340) to expose the second film layer (330) to the outside; and a fifth step of positioning the third release film (400) on the exposed surface of the second film layer (330).

First, to describe the first step in detail, the pad part (100) is composed of known absorbent materials such as gauze, cotton, non-woven fabric, hydrocolloid, hydro gel, polyurethane foam, polyacrylate, polyvinyl alcohol, polyvinyl pyrrolidone, expandable synthetic polymer, etc. as described above, and is prepared to have a certain thickness, area, and shape. Of course, when forming an incision line, a forming blade (not shown) can be used, but it is not necessarily limited thereto as long as an incision line can be formed.

The backing film (200) prepared from polyurethane, polyethylene, styrene-isoprene copolymer, styrene-butadiene block copolymer, polyvinyl chloride, polyamide or a mixture thereof has a larger area than the pad portion (100) so that an area to be fixed to the affected area can be provided.

In addition, an adhesive layer made of acrylic material is applied to the inner surface of the backing film (200), that is, the surface in contact with the pad portion (100), so that it can be closely fixed to the pad portion (100) and the first film layer (320). Of course, any adhesive used for medical purposes, such as a hydrocolloid adhesive or a hydrogel adhesive, may also be used.

In addition, a memo line may be attached to a predetermined portion of the outer surface of the backing film (200), that is, the surface on which the adhesive layer is not applied. Of course, the memo line may be formed after the fifth step of positioning the third release film (400) on the exposed surface of the second film layer (330), or the memo line may be laminated on the backing film (200) fabric, and then the memo line may be cut together when the backing film is cut. In addition, it is preferable that a separate adhesive is applied to the inner surface of the memo line so that it can be fixed to the backing film (200).

Meanwhile, a first film layer (320) having a plurality of first ventilation holes (321) and second ventilation holes (322) formed therein, a second film layer (330) having a plurality of third ventilation holes (331) and fourth ventilation holes (332) formed therein and provided on one surface of the first film layer (320), and a second release film (340) having a plurality of fifth ventilation holes (341) and sixth ventilation holes (342) formed therein and in close contact with the other surface of the second film layer (330) are formed by punching the raw film (300).

Specifically, referring to Fig. 8, a fabric film (300) is prepared in which a first release film (310), a first film layer (320), a second film layer (330), and a second release film (340) are sequentially laminated from below (step 1a).

Here, the first release film (310) and the second release film (340) may be made of polyethylene terephthalate (PET), polyethylene (PE), or paper material having a thickness of approximately 0.01 to 0.15 mm.

And the first film layer (320) is made of polyurethane (PU) material with a thickness of approximately 0.015 to 0.090 mm, and the second film layer (330) is made of silicone material with a thickness of approximately 0.04 to 0.12 mm.

After preparing a fabric film (300) having the above configuration, a permeable hole is formed by punching (step 1b). That is, the fabric film (300) on which the first release film (310), the first film layer (320), the second film layer (330), and the second release film (340) are sequentially laminated is punched from above with a mold (500).

Here, the mold (500) is provided with a first cutter (520) and a second cutter (530) on the lower surface of the support member (510), and the first cutter (520) has the same shape as the first ventilation hole (321), the third ventilation hole (331), and the fifth ventilation hole (341) so as to be able to form these ventilation holes, and the second cutter (530) has the same shape as the second ventilation hole (322), the fourth ventilation hole (332), and the sixth ventilation hole (342) so as to be able to form these ventilation holes.

Of course, it is self-evident that the ventilation holes can be formed using two types of molds, each equipped with a first cutter and a second cutter.

Also, in FIG. 8, punching is illustrated using one first cutter (520) and two second cutters (530), but this is only an example, and a plurality of first cutters (520) are formed in parallel at the center of the bottom surface of the support member (510) to correspond to the pad member (100), and a plurality of second cutters (530) are formed outside the first cutter (520).

Meanwhile, when punching with a mold (500), the blade tips of the first cutter (520) and the second cutter (530) are moved only to the extent that they can sequentially penetrate the remaining films, namely the second release film (340), the second film layer (330), and the first film layer (320), without penetrating the first release film (310). Of course, if the blade tips of the first cutter (520) and the second cutter (530) do not completely penetrate the first release film (310), a portion may be cut.

It is common to form air holes by punching so that the cutter completely penetrates the film. However, in this case, if the film is an adhesive material, the cut pieces stick to the inside of the cutter, which causes problems such as an unsmooth cut surface or frequent cutter replacement. However, in the present invention, when the first release film (310) is separated, the cut pieces are separated together, so that processing efficiency can be increased.

By going through the above process, a cut region is formed in which a first ventilation hole (321) and a second ventilation hole (322) can be formed in the first film layer (320), a third ventilation hole (331) and a fourth ventilation hole (332) can be formed in the second film layer (330), and a fifth ventilation hole (341) and a sixth ventilation hole (342) can be formed in the second release film (340).

Next, the first release film (310) is separated from the first film layer (320) to remove the first cut area (A) and the second cut area (B) (step 1c). The first film layer (320) is made of polyurethane (PU) material having flexibility and a little adhesiveness, while the first release film (310) is made of polyethylene terephthalate (PET) or paper material. Accordingly, the first release film (310) is relatively easily separated from the first film layer (320), and at this time, the cut regions are separated together while remaining attached to the first release film (310), so that the first cut region (A) forms the first ventilation hole (321), the third ventilation hole (331), and the fifth ventilation hole (341), and the second cut region (B) forms the second ventilation hole (322), the fourth ventilation hole (332), and the sixth ventilation hole (342).

Subsequently, in the second step, the backing film (200) is positioned so as to overlap with one side of the pad portion (100), and in the third step, the film layers in which the aforementioned multiple ventilation holes are formed and in which the first film layer (320), the second film layer (330), and the second release film (340) are sequentially laminated from below are overlapped with the other side of the pad portion (100) and a portion of the edge of the backing film (200).

In addition, in the fourth step, the second release film (340) is separated to expose the second film layer (330) that is in close contact with the affected area, and finally, the third release film (400) to prevent contamination of the second film layer (330) is positioned on the exposed surface of the second film layer (330).

Here, the third release film (400) may be made of the same material as the second release film (340), and it is preferable that a fluorine coating layer be provided on the bonding surface with the second film layer (330) to facilitate separation.

While specific portions of the present invention have been described in detail above, it will be apparent to those skilled in the art that these specific descriptions are merely preferred embodiments and that the scope of the present invention is not limited thereby, and that various changes and modifications are possible within the scope and technical idea of the present invention, and it is natural that such changes and modifications fall within the scope of the appended patent claims.

100: Pad part
110: Incision line
200: Backing Film
210: Memo
300: Fabric Film
310: 1st heteromorphic film
320: 1st film layer
321: 1st vent 322: 2nd vent
330: Second film layer
331: 3rd vent 332: 4th vent
340: 2nd heteromorphic film
341: 5th vent 342: 6th vent
400: Third heteromorphic film
500: Mold
510: Support 520: First cutter
530: 2nd cutter
A: 1st incision area
B: Second incision area

Claims (13)

Pad part (100);
A backing film (200) positioned to overlap one side of the above pad portion (100);
A first film layer (320) positioned to overlap with the surface of the pad portion (100) and having a portion of the edge area overlapping with the backing film (200); and
A second film layer (330) positioned on the outer surface of the first film layer (320) and in close contact with the affected area; including:
The first film layer (320) is provided with a first ventilation hole (321) and a second ventilation hole (322), and the second film layer (330) is provided with a third ventilation hole (331) and a fourth ventilation hole (332).
A medical dressing material, characterized in that the first ventilation hole (321) and the third ventilation hole (331) are located in an area overlapping the pad portion (100), and the second ventilation hole (322) and the fourth ventilation hole (332) are located in an area not overlapping the pad portion (100).
In the first paragraph,
A medical dressing material, characterized in that the areas of the first ventilation hole (321) and the third ventilation hole (331) are the same, and the areas of the second ventilation hole (322) and the fourth ventilation hole (332) are the same.
In the second paragraph,
A medical dressing material, characterized in that the area of the first ventilation hole (321) is larger than the area of the second ventilation hole (322).
In the third paragraph,
A medical dressing material characterized in that the second film layer (330) is made of silicone material and an adhesive layer of acrylic material is applied to the inner surface of the backing film (200).
A method for manufacturing a medical dressing material as described in any one of claims 1 to 4,
A first step of preparing a pad portion (100), a backing film (200), a first film layer (320) having a plurality of first ventilation holes (321) and second ventilation holes (322) formed therein, a second film layer (330) having a plurality of third ventilation holes (331) and fourth ventilation holes (332) formed therein and one surface of which is in close contact with the first film layer (320), and a second release film (340) having a plurality of fifth ventilation holes (341) and sixth ventilation holes (342) formed therein and the other surface of the second film layer (330) formed therein;
A second step of positioning the backing film (200) so as to overlap one side of the above pad portion (100);
A third step of overlapping the first film layer (320) on the surface of the pad portion (100) and a portion of the edge of the backing film (200); and
A method for manufacturing a medical dressing, characterized by including a fourth step of separating the second heteromorphic film (340) to expose the second film layer (330) to the outside.
In paragraph 5,
In the first step above, a step 1a is provided to prepare a fabric film (300) laminated in the order of a first release film (310), a first film layer (320), a second film layer (330), and a second release film (340) from below;
Step 1b of forming a first cutting area (A) by punching with a first cutter (520) having the same shape as the first ventilation hole (321), the third ventilation hole (331), and the fifth ventilation hole (341), and forming a second cutting area (B) by punching with a second cutter (530) having the same shape as the second ventilation hole (322), the fourth ventilation hole (332), and the sixth ventilation hole (342); and
A method for manufacturing a medical dressing, characterized by including a step 1c of forming first ventilation holes (321) to sixth ventilation holes (342) by separating the first release film (310) from the first film layer (320) and removing the first cut area (A) and the second cut area (B).
In Article 6,
A method for manufacturing a medical dressing, characterized in that in the above step 1b, one of the first incision area (A) and the second incision area (B) is formed first or simultaneously.
In Article 6,
A method for manufacturing a medical dressing, characterized in that the first film layer (320) is made of a polyurethane (PU) material and the second film layer (330) is made of a silicone material.
In Article 6,
A method for manufacturing a medical dressing, characterized in that the cross-sectional area of the first cutter (520) is larger than the cross-sectional area of the second cutter (530).
In Article 9,
A medical dressing material, characterized in that the first ventilation hole (321) and the third ventilation hole (331) are located in an area overlapping the pad portion (100), and the second ventilation hole (322) and the fourth ventilation hole (332) are located in an area not overlapping the pad portion (100).
In Article 10,
A method for manufacturing a medical dressing, characterized in that a plurality of incision lines (110) having a predetermined shape are formed in the pad portion (100) in the first step.
In Article 11,
A method for manufacturing a medical dressing, characterized in that the above-mentioned incision line (110) is formed to a certain depth from one side of the pad portion (100) in close contact with the above-mentioned backing film (200) toward the other side.
In Article 12,
A method for manufacturing a medical dressing, characterized by further performing a sixth step of forming a memo line (210) on a certain area of the outer surface of the backing film (200).

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