KR0156679B1 - Bandage - Google Patents

Abstract

More particularly, the present invention relates to a disposable bandage comprising a support layer, a pressure-sensitive adhesive layer formed on the pressure-sensitive adhesive layer, and a pad portion and a release paper formed thereon, wherein the pad portion includes sodium polyacrylate and activated carbon Wherein the nonwoven fabric comprises a nonwoven fabric laminated on the surface thereof and a film for delaminating the wounds laminated on the surface thereof. The bandage according to the present invention sufficiently absorbs and adsorbs the secretion secreted from the wound, promotes the topography, and induces rapid healing of the wound.

Description

Disposable band-aid

FIG. 1 shows a top view of a highly adsorptive disposable bandage according to the present invention,

FIG. 2 is a cross-sectional view of FIG. 1,

Figure 3 is an array perspective view of the structure of Figure 1;

DESCRIPTION OF THE REFERENCE NUMERALS

1: Film for peeling the wound of the pulley ethylene type mesh structure

2: activated carbon

3: sodium pully acrylate

4: rubber-based adhesive or synthetic rubber, pulley-urethane rubber, acrylate copolymer adhesive layer

5: PVC film, pulley urethane-based film or stretchable rayon face support

6: pad portion

More particularly, the present invention relates to a disposable bandage which absorbs and absorbs secretions secreted from a wound and promotes hemostasis, thereby inducing rapid healing of wounds.

Conventionally used disposable bandages generally include an adhesive layer formed on a support layer and a support layer so as to be adhered to a wound site and a pad portion and a pad portion formed on the adhesive layer to absorb the secretion secreted from the wound And a peeling paper covering it.

However, such conventional disposable bandages have disadvantages in that the pad portion is made of only a gauze or a nonwoven fabric, so that secretion leaks or sticks to the wounds. When a drug such as acryol, benzalkonium chloride, or dodecylpyridinium chloride is added to the pad portion, sterilization may be exhibited. However, when the secretion is excessively large, the ability to inhibit the sterilization is inferior, Allergies can not be excluded.

On the other hand, Korean Patent Publication No. 95-5335 discloses a disposable bandage in which a hemostatic effect is enhanced by using pulley ethylene oxide which helps blood coagulation in the pad portion. In addition, U.S. Patent No. 3,328,259 describes a method for preparing a hemostatic-containing wound dressing using a sodium salt of carboxymethylcellulose.

However, in the above-described conventional techniques, there has been a problem that the ability to adsorb secretions or contaminants secreted from wounds is poor as a result of development of a bandage with an emphasis on hemostasis.

Accordingly, the inventors of the present invention have made intensive studies to develop a disposable bandage excellent in the ability to absorb secretions while exhibiting a hemostatic effect much faster than the conventional disposable bandages. As a result, they have found that sodium polyacrylate and natural wood The present inventors have found that disposable bandages comprising a pad layer simultaneously containing activated carbon obtained in the above-mentioned method, shell, oak, and green tea exhibit the effect corresponding thereto.

Accordingly, it is an object of the present invention to provide a method and apparatus for quickly and efficiently adsorbing and absorbing secretions and contaminants such as blood, sperm, and purulent excreted from a wound, as well as a rapid hemostatic effect and a hydration phenomenon at a wound site, Disposable bandages.

To this end, according to the present invention, there is provided a disposable bandage comprising a support layer, an adhesive layer formed thereon, a pad portion formed on the adhesive layer, and a release paper, wherein the pad portion is laminated on the surface thereof with a nonwoven fabric comprising Sodi polyacrylate and activated carbon A disposable bandage characterized in that it is made of a film for delamination.

Hereinafter, the contents of the present invention will be described in more detail.

As the material of the support layer in the present invention, it is preferable to use a porous PVC film, a polyurethane film, or a stretchable rayon, and an anti-allergic adhesive is applied to the upper surface thereof to form an adhesive layer.

Antiallergic pressure-sensitive adhesives can be used by adding anti-allergic drugs such as diphenhydramine, chlorophenylamine maleate, etc. to natural rubber and synthetic rubber resins.

Next, the pad unit, which is a feature of the present invention, is composed of a nonwoven fabric containing sodium polyacrylate and activated carbon, and a film for delaminating wounds laminated on the surface thereof.

Preferably, the nonwoven fabric is a nonwoven fabric of 60 to 100% viscose rayon, and a porous low density polyethylene film is preferably used as the film for delamination.

The sodium acrylate to be dispersed and dispersed in the nonwoven fabric is not crosslinked and has an absorption capacity of 80 to 100 ml / g. It is preferably in a state of not being in a gel state at ordinary times and having a water absorption amount of 10 wt% Do. The content of the sodium polyacrylate is preferably 0.01 to 15% (w / w) based on the weight of the entire nonwoven fabric.

The sodium polyacrylate, which is carried on the nonwoven fabric, absorbs a large amount of blood or contaminants rapidly. The pH at the time of absorbing moisture into the gel state is neutralized to 7.5 ± 0.3 so as not to irritate the wound area Should be maintained.

The activated carbon which is another component dispersed in the nonwoven fabric is preferably one prepared from natural wood such as coconut shell, oak, and oak, and particularly preferably has a particle size of 0.05 ± 0.007 mm and a surface area of 1,000 ± 100 m2 / mm. In this case, the adsorption surface area is wider than that of any particle, and the adsorption force is greatly increased. The content of activated carbon is preferably 0.01 to 15% (w / w) based on the weight of the entire nonwoven fabric.

When spraying nonwoven fabric with sodium polyacrylate and activated carbon, water or. Water-ethanol mixture, carbon tetrachloride, benzene, hexane or the like.

In the present invention, The film for peeling the wound covering the pad part prevents the nonwoven fabric from pressing on the wound area.

Finally, a release paper is laminated on the pad portion and the pressure-sensitive adhesive layer to protect the pad portion and the pressure-sensitive adhesive layer from contamination and the like. Silicone or polypropylene can be used as the release paper, and it is used after removing the release paper when using a bandage.

The highly absorbable disposable band-aid according to the present invention absorbs and absorbs large quantities of secretions and contaminants such as blood, sperm, and pus from the injured area, thereby exhibiting a hemostatic effect and an increase in hydration as compared with the disposable band- It keeps clean and leads to prompt treatment.

The present invention will be described in more detail with reference to the following examples. These examples are provided to illustrate the present invention, and the scope of the present invention is not limited thereto in any form.

[Example 1]

1 kg of sodium lauryl acrylate and 1,000 kg of isopropyl alcohol were added to the dissolution tank, and the dispersion was confirmed with gentle stirring. Then, 0.2 kg of activated carbon was gradually added in small amounts. The mixture was made into a homogeneous solution, sprayed together when the rayon nonwoven fabric was produced, and the mixture was allowed to stand at the top. The solvent was evaporated in an oven tunnel to form between sodium acrylate and activated carbon nonwoven fabric in the nonwoven fabric, and then the nonwoven fabric was wound up.

The nonwoven fabric having the sodium polyacrylate and activated carbon components preliminarily laminated was laminated to a porous low density polyethylene film and then cut and adhered to the porous support coated with the adhesive according to the size.

All processes are carried out using a conventional band-aid manufacturing machine, a disposable band-aid making machine and a wrapping machine, and detailed implementation processes not specifically mentioned are followed by known methods. Particular attention was paid to external contamination and conventions during the entire process.

[Comparative Example 1]

29.28 kg of isopropyl alcohol was added to the mixing vessel, and 0.9 kg of polyethylene oxide (Polyox resin WSR-301, manufactured by Union Carbide Corp., molecular weight 4,000,000) was added while stirring rapidly. The polymer was dispersed in alcohol but not dissolved. 5.82 kg of distilled water was added and the mixture was slowly stirred for 15 minutes. Water was added to rapidly dissolve the polyethylene oxide.

During this process, the viscosity was measured and the solution was coated on a perforated mesh polyethylene film (Delnet P-53 produced by Huckles, Inc.) using a reverse coater.

After coating the delette with a thin film of polyoxal solution, the solvent was evaporated by passing it over a warm oven to leave a very thin film of polyethylene oxide on the deleted film, which was then rolled up.

[Comparative Example 2]

Disposable plasters were prepared using the gauze from Korean Pharmacopoeia.

[Comparative Example 3]

A disposable band-aid was prepared by laminating a nonwoven fabric immersed with acrylin in a polyethylene net.

[Hemostasis test]

The hemostatic effect of the disposable bandages according to Example 1 and Comparative Examples 1 to 3 was evaluated by a rabbit ear hemostasis test simulating a mild repertoire in which band-aid is often used in the laboratory.

1. In each rabbit, 1 mL of anesthetic (Rabbit Magic) was injected in a 1 mL dose of 1 milliliter per 10 kg of body weight. Anesthesia with rabbit magic proceeded smoothly every day.

2. The medial magic of the inner margin of both ears was incised. The ear was raised above the flat testbed and the whole bow of the vein was incised, so that the vein was not completely incised. The selected portion of the vein should be consistent and large in diameter.

3. A small amount of initial blood flowing from the incision site is wiped clean with a gauze and a cotton pad, and a small amount of blood flows when the wound area is fully observed. The incision was again wiped off with a gauze or cotton pad, and a stop watch was pressed at the same time as applying a bandage sample (the backing is transparent or non-transparent) perpendicularly to the vein, immediately at the incision site. Samples that were applied to the wound area were gently applied with pressure with a thumb for 5 seconds to ensure proper contact between the sample and the wound.

4. When visual bleeding ceased completely, the hemostasis time was recorded in seconds and then steps 2 and 3 were repeated with the new sample.

5. The first selected area of the same ear was secondly incised and tested as described above. The ear was incised two to three times and the sample was replaced in an unsteady manner.

[Absorption and Adsorption Test]

The absorption and adsorption effects of the disposable bandages according to Example 1 and Comparative Examples 1 to 3 were evaluated in the following manner by preparing 0.9% physiological saline in a laboratory.

1. Sample numbers were recorded using 10 disposable bandages prepared according to Example 1 and Comparative Examples 1 to 3, respectively, and the release film of the pad portion was incised.

2. The sample was dried in a drying oven at 110 DEG C for 10 minutes, cooled to room temperature in a desiccator (silica gel), and weighed and recorded on a sample-by-sample basis in a constant temperature and humidity chamber.

3. Immersed in 0.9% physiological saline solution prepared for 1 hour.

4. Each sample was taken out from the saline solution at the same time, and the lengthwise direction was set vertically on the paper surface, and the residual liquid was allowed to flow down by itself. Then, the remnant remaining on the film was removed with cotton wool or nephews.

5. The manipulated samples were weighed precisely by number as quickly as possible.

6. The measured value of 5 was subtracted from the measured value of 2, and the mean value and the standard deviation of each value were obtained.

The results obtained using the above method, that is, the hemostatic effect of each disposable bandage [the time (seconds) until the hemorrhage ceases and the absorption and absorption effect (the absorption rate of physiological saline absorbed in the pad portion (%)] .

For the samples where the support was opaque and the test was difficult to observe, the sample conditions were the same using a transparent film-type band-aid to each pad.

The absorbance (㎎) in terms of absorbance and adsorption was converted to the absorbance (%) in accordance with the difference in the specifications for each sample, and the value was obtained by the following formula.

[Test of person test]

A disposable bandage sample of Example 1 and Comparative Examples 1 to 3 was stuck to the fourteen samples uniformly on the anus of the arms of 50 healthy and 20 female adults and the allergic condition such as feeling of use and skin rash after 24- Observation was made. The criterion was 0 for no response, 1 for slight erythema, 2 for obvious erythema, 3 for oscillation anomaly, and determined as the sum of the judgment points, and the results are shown in Table 2 .

Claims (4)

A disposable bandage comprising a support layer, an adhesive layer formed thereon, a pad portion formed on the adhesive layer, and a release paper, wherein the pad portion comprises a nonwoven fabric comprising sodium polyacrylate and activated carbon and a film for delaminating the wounds laminated on the surface thereof Wherein the disposable band-aid is a disposable band-aid. The absorbent article as claimed in claim 1, wherein the sodium polyacrylate has a water absorption of 80 to 100 ml / g, a water content of 10 weight% or less, and a concentration of 0.01 to 15% (w / w) Disposable bandages, The disposable band-aid as claimed in claim 1, wherein the activated carbon has a particle size of 0.05 ± 0.007 mm, a surface area of 1,000 ± 100 m2 / mm and a concentration of 0.01 to 15% (w / w) to the nonwoven fabric. The disposable band-aid as claimed in any one of claims 1 to 3, wherein the material of the nonwoven fabric is viscose rayon 60 to 100%.