WO1998036719A1

WO1998036719A1 - First-aid adhesive bandage

Info

Publication number: WO1998036719A1
Application number: PCT/JP1998/000311
Authority: WO
Inventors: Minoru Ito
Original assignee: Minoru Ito
Priority date: 1997-02-24
Filing date: 1998-01-27
Publication date: 1998-08-27

Abstract

Purpose: to provide a skin protecting agent which can be used easily and more conveniently than existing products when the surface of a wound is curing and which is excellent in the feeling of use. Constitution: The bandage is characterized in that the bandage is a film for skin protection coated with a skin adhesive, and the adhesive is not provided on the surface coming into contact with a wounded part, or a film or fine powder of a material having poor water absorbing properties is stuck thereon.

Description

Description Emergency bandage technology

The present invention relates to an improved first aid bandage, and more particularly to a convenient and hygienic underwear bandage when the wound has healed considerably. Background art

Emergency bandages appeared in Japan around 1948, when cloth was used at the time, but the current product using a polymer material such as vinyl chloride as a sheet was developed. Since around 1959, many products such as Band-Aid (J & J) and Kattoban (Yutoku Yakuhin) have been sold. Commercially available emergency plasters usually use vinyl chloride or the like widely as a support, an adhesive is applied on one side, and the purpose of disinfecting the wound is near the center of the tape. Gauze impregnated with a disinfectant, a non-woven fabric, etc. are attached, making it possible to easily and quickly protect and disinfect the wound surface in case of an emergency fold.

Such first-aid bandages usually have a release paper coated with silicone or the like for the purpose of protecting the adhesive surface, which is adhered to the surface coated with the adhesive, so that the release paper can be removed before use and applied to the wound surface. It has become. In addition, this bandage is commercially available, packaged entirely in a paper bag coated to prevent bacteria, water and stains. Problems to be solved by the invention

If you have a relatively small wound on your skin, cover the wound with an emergency bandage, The wound heals over time. Although not completely cured, when the risk of new infection is low, the gauze adhered to the bandage is no longer needed for the purpose of protecting the wound. At the beginning of the outbreak, they avoid getting wet, but if the wound is a hand, especially a finger, the wound gradually becomes more and more wet as the healing progresses, and the gauze gets wet. If the gauze is immersed in water forever, the surface of the skin will be swollen with water, which is not desirable in terms of hygiene management. When treating with ointment containing a bactericide for the purpose of disinfecting the wound or preventing the skin from drying out, if there is an adhesive substance on the bandage surface, the bandage will not be sufficiently adhered to the skin and will slip off. Sometimes. Means to solve the problem

According to the present invention, there is provided a bandage in which an adhesive is not applied to a portion corresponding to a wound surface of the bandage, a film or a fine powder of a poorly water-absorbing substance which does not adversely affect the wound on the portion, The other part relates to an adhesive-coated bandage.

This bandage is suitable for use after the wound has healed considerably, and even if an ointment or the like is treated, the wound can be protected by the emergency bandage.

As a support for the wound site, a polymer material such as vinyl chloride, polyethylene, urethane film or the like, a fiber woven fabric such as a plain woven cloth, an elastic cloth, or a non-woven fabric which can be processed into a film shape which does not adversely affect the skin wound. Any can be used. In particular, a material that is permeable to water but impermeable to water is preferable, and examples thereof include a porous film of polyester elastomer. The film can be used for the purpose of the present invention as long as it is in the range of about 5 to 2000 am, and the support has a small size of about 0.5 mm in consideration of skin permeability. Holes can be appropriately arranged. As the adhesive, rubber polymers such as styrene-butadiene rubber, polybutene, polyisoprene, butyl rubber, and natural rubber, acrylate polymers, silicone polymers, and gen polymers are suitable. Stimulation to is small.

As the film or the fine powder to be provided in the portion corresponding to the wound portion, any material can be used as long as the material has extremely poor water absorption. As the film, a polymer substance such as vinyl chloride, polyethylene terephthalate, polyethylene, polypropylene, polyurethane, cellulose acetate, regenerated cellulose, or the like having a thickness of 5 to 2000 zm is used. It is required. Fine powders include high-molecular substances such as vinyl chloride, polyethylene terephthalate, polyethylene, polypropylene, polyurethane, cell mouths—sulfate, regenerated cellulose, etc., fine powders of mineral substances such as talc, calcium phosphate and calcium carbonate. Examples of fine powders of organic substances include various water-insoluble salts such as calcium citrate and calcium glutamate, and fine powders of stone cells contained in pear fruits and fertilizers such as scabies. 0〃m that does not adversely affect the skin is used

BEST MODE FOR CARRYING OUT THE INVENTION

Example 1

An acryl-based emulsion adhesive (copolymer of 3 parts of methacrylic acid and 97 parts of 2-ethylhexyl acrylate: 50% solids) was uniformly dispersed. This solution was applied to polyethylene coated glassine paper, dried at 60 ° C., and then transferred to a 70 m-thick soft polyvinyl chloride film to obtain a base material for an adhesive plaster. To protect the bonding surface, a silicone-coated high-quality paper coated with 150-mm polyethylene paste was applied, and these were weighed 19 mm x 76 m. It was cut into m to obtain an emergency bandage.

Example 2

Place a 30 m polyethylene film 14 mm x 24 mm in the center of the bandage as shown in Figure 1 on the bandage base material created in Example 1, and attach release paper with the same specifications as in Example 1. Then, it was cut to 19 mm x 76 mm to obtain an emergency bandage having a polyethylene film attached to the wound site shown in Fig. 1.

Example 3

10 / zm fine talc was placed in the center of the bandage as shown in Fig. 11 on the bandage base material created in Example 1, and a release paper of the same specification as in Example 1 was attached. It was cut to a size of 76 mm x 76 mm to obtain an emergency bandage with fine powder talc applied to the wound area shown in Fig. 1.

Example 4

The same adhesive as in Example 1 was applied to polyethylene coated glassine paper, dried at 60 ° C., and a portion (14 mm × 24 mm) applied to the wound was protected with masking tape in advance. The film was transferred to a soft polyvinyl chloride film of 0 tz m, and the masking tape was removed to obtain a base material for the bandage. A release paper having the same specifications as in Example 1 was attached to this substrate. These were cut into 19 mm x 76 mm to obtain an emergency bandage to which the adhesive was not applied at the location where the wound shown in Fig. 12 hit. Actual use of the invention

In a case where a housewife cuts the ventral side of the middle finger of the left hand, water work continues every day. I was familiar. On the third day, the wound began to close, so a small amount of ointment was applied and the bandage was switched to the bandage of Example 2 of the present invention. At this time, she did not get wet, and she also had the protection effect of polyethylene film, which made her housework much easier.

The cracks formed at the border between the right thumb and the nails were treated with a normal first-aid bandage with gauze treated with ointment. When the medicine and the first-aid bandage were changed every day, the healing was considerably healed on the third day, so the bandage of Example 3 was used. The wound is easy to get wet with water, so the gauze is always wet and uncomfortable and unsanitary. It was also economical.

In the case of a razor wound on the right jaw, treatment was carried out in Example 4 of the present invention after applying a very small amount of wound medicine from the second day, but other people noticed because there was no swelling due to gauze. No, it was very convenient. BRIEF DESCRIPTION OF THE FIGURES

Fig. 1 and Fig. 1 are the top views of the bandage.

Claims

The scope of the claims

1. Adhesive is not applied to the wound surface of the sheet-like support of the adhesive plaster, or a film or fine powder of a substance with poor water absorption is applied, and the adhesive is applied to other parts. Emergency bandage