JP3417656B2 - Mats used in hospitals - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mat, and more particularly to a methicillin-resistant Staphylococcus aureus (hereinafter referred to as MRSA).
The present invention relates to a mat which is sterilizing against and is suitable for use in a hospital.

[0002]

2. Description of the Related Art In recent years, nosocomial infections due to MRSA have become a serious problem as the treatment period in hospitals has become longer or the number of treatment opportunities in hospitals for patients with reduced resistance to bacteria has increased. . Therefore, recently, various MR
SA sterilizing materials have been developed and applied to disposable applications such as gloves, but mats having sterilizing properties against MRSA have not yet been known.

While the inventors of the present invention diligently studied a film containing an MRSA bactericidal substance, a mat used for sterilizing bacteria in a hospital may contaminate an operating room or the like and cause infection. Therefore, it was found that imparting MRSA bactericidal properties to the mat is extremely effective in preventing nosocomial infection, and arrived at the present invention.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a mat suitable for preventing MRSA infection in a hospital.

[0004]

The above objects of the present invention are as follows.
A mat formed by laminating at least one mat layer having a pressure-sensitive adhesive layer on the upper surface of a base material whose lower surface is release-treated,
At least the adhesive layer has been achieved by a mat used in a hospital, characterized in that it contains a bactericidal substance against methicillin-resistant Staphylococcus aureus. In the present invention, the bactericidal substance against mesitillin-resistant Staphylococcus aureus (MRSA) contained in at least the adhesive layer is MR
The substance is not particularly limited as long as it has a sterilizing property against SA.

Examples of MRSA bactericidal substances include benzalkonium chloride, alkyldiaminoethylglycine hydrochloride, chlorhexidine gluconate, pompidone iodine, glutaraldehyde, chitosan which is a natural polysaccharide, and ultrafine zinc oxide (Z coating solution). (Commercially available from Sumitomo Cement Co., Ltd.), aluminosilicate solid particles retaining metal ions having a bactericidal action (JP-A-1-263175), and colloidal silver (JP-A-3-122162). Gazette), Rivals (trade name of Towa Chemical Co., Ltd.) and the like.

In the present invention, among these, chitosan, ultrafine zinc oxide, aluminosilicate solid particles (JP-A-1-263175), colloidal silver (JP-A-3-122162) or rivals (Owawa). It is preferable to use a trade name manufactured by Kagaku Co., Ltd., especially M
From the viewpoint of improving the RSA bactericidal property, it is preferable to use rivals.

In the present invention, the MRSA bactericidal substance can also be contained in the substrate. The resin used as the base material can be appropriately selected and used from the known resins used for ordinary mats. Examples of such resins include polyolefin resins such as polyethylene and polypropylene, acrylic resins, vinyl acetate resins, vinyl chloride resins, urethane resins, ABS resins, polyamide resins, polyester resins and the like.
In particular, it is preferable to use a polyolefin resin such as polyethylene or polypropylene, an acrylic resin, an ABS resin, or a polyester resin, and it is most preferable to use a polyethylene resin.

The pressure-sensitive adhesive used in the pressure-sensitive adhesive layer containing the MRSA bactericidal substance in the present invention is not particularly limited, and a known synthetic rubber such as natural rubber, isoprene rubber or SBR is used as a main component, and polyterpene or rosin is used. Such as a tackifying resin, a mineral-based oil, a rubber-based adhesive mixed with a plasticizer such as lanolin, and an acrylic-based adhesive such as acrylic-based alkyl ester and methacrylic acid alkyl ester as a main component and a copolymerized adhesive. Can be used.

The MRSA bactericidal substance may be contained in a solid dispersion state, an emulsion dispersion state, or a solution state together with a plasticizer of a resin. The content of the MRSA bactericidal substance in the adhesive layer is preferably in the range of 0.1 to 5% by weight from the viewpoint of bactericidal property and economy. MR is less than 0.1% by weight
The bactericidal property against SA is poor, and even if it exceeds 5% by weight, not only the effect is saturated but also the cost becomes high.

In the present invention, from the viewpoint of preventing MRSA infection during the work of disposing of used mats,
It is preferable to add an appropriate amount of the MRSA bactericidal substance to the base material. The base material used in the mat of the present invention can be molded into an appropriate shape by mixing a sterilizing substance with the above-mentioned resin, if necessary, and using a known molding means such as melt extrusion or injection molding.

The adhesive layer on the upper surface of the substrate can be easily provided by applying and drying an adhesive coating solution containing the bactericidal substance. In the present invention, it is preferable that the back surface of the base material (the surface opposite to the surface on which the adhesive layer is provided) is treated with a release agent from the viewpoint of facilitating replacement and the like by sequentially peeling the laminated mat layers. .

The release agent treatment is carried out on the back surface of the substrate by using a mineral oil such as liquid paraffin, a fatty acid such as stearic acid, a fatty acid ester such as ethylene glycol fatty acid ester, an alcohol such as polyoxyalkylene glycol and a polyoxyalkylene. A coating liquid containing at least one mold release agent selected from phosphate ester-based compounds such as calcium stearate, metal soaps such as calcium stearate, silicone-based compounds such as dimethyl silicone oil, and fluorine-based compounds such as polytetrafluoroethylene. Can be applied and dried to form a release layer on the back surface of the substrate.

It is not necessary to include MRSA bactericidal substances in these release layers as well, so that the MRSA bactericidal properties of the new mat surface are not reduced, and infection during the disposal processing of used mats is prevented. From the viewpoint of The mat of the present invention can be obtained by laminating an appropriate number of the mat layers thus formed.

In the present invention, it is preferable to provide a release paper or a release film on the uppermost adhesive layer from the viewpoint of facilitating transportation and handling. Examples of such a release paper or release film include known release paper or release film having the surface of a film of paper or polyolefin treated with the release agent as described above. The mat of the present invention is used in an M
From the viewpoint of preventing RSA infection, it can be used at any place in the hospital, but it is preferably placed in front of the entrance of an operating room or a clean room where infection prevention is most needed.

Next, the mat of the present invention will be described based on Examples, but the present invention is not limited thereto. FIG. 1 is a schematic sectional view of a mat of the present invention. In the figure, reference numeral 1 is an MR attached to shoes of a patient or a doctor.
Adhesive layer containing MRSA bactericidal substance for removing SA contaminants and adhering and sterilizing MRSA to prevent MRSA infection, 2 is a base material for supporting the adhesive layer, 3 is a used mat layer A peeling layer for peeling 4 is a mat layer.

In the mat of the present invention, MRSA contaminants adhering to shoes of a doctor or the like are adhered and removed by the adhesive layer 1,
When sterilized and the action of removing contaminants on the adhesive layer side of the mat is reduced, the mat layer 4 is peeled off by the release layer 3 side,
Since the adhesive layer is renewed and used, recontamination from the mat can be effectively prevented. In addition, since MRSA attached to the surface of the adhesive layer of the mat layer to be discarded is sterilized, there is no secondary infection when peeled and discarded. In particular, when the substrate also contains the MRSA bactericidal substance, the secondary infection is effectively prevented even if the adhesive layer is peeled off and the substrate is exposed. Further, if the stripped mat layer is incinerated, MRSA contamination can be completely prevented.

[0017]

EFFECT OF THE INVENTION Since the mat of the present invention contains at least the MRSA bactericidal substance in the adhesive layer, MRSA attached to the adhesive layer is immediately sterilized and conversely MRSA is removed from the mat.
Does not reversely adhere to the shoes or the like of another person who comes into contact therewith to contaminate them. Therefore, the mat of the present invention is
It is extremely effective in preventing nosocomial infection of A.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view of a mat of the present invention.

[Explanation of symbols]

1 Adhesive layer containing MRSA bactericidal substance 2 base materials 3 Release layer 4 mat layers

Claims (3)

(57) [Claims] 1. A mat formed by laminating at least one mat layer having a pressure-sensitive adhesive layer on the upper surface of a substrate whose lower surface has been subjected to a peeling treatment, wherein at least the pressure-sensitive adhesive layer is sterilized against mesicillin-resistant Staphylococcus aureus. A mat used in a hospital, characterized by containing a sexual substance. 2. The mat used in a hospital according to claim 1, wherein a release paper or a release film is provided on the uppermost adhesive layer. 3. A mat for use in a hospital as claimed in claim 1 or 2, wherein the bactericidal substance is rivals.