JPH0719341Y2 - Antibacterial resin rug - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an antibacterial resin rug that can maintain a hygienic condition without generation of mold or the like even after long-term use. .

(Prior Art) Resin rugs such as cocoons and leisure sheets processed and molded from resin fibers such as polyethylene and vinyl chloride have been widely used since they are easy to handle and relatively inexpensive.

However, such a resin rug often causes food and drink to spill on the outer surface or stains on the limbs of a person during use. There was a problem that it became hygienic and that the appearance of the germs was deteriorated due to the darkening of the breeding site of various bacteria. In addition, although stains on the outer surface of the rug have been washed off by washing, it has been difficult to completely kill germs such as mold.

(Problems to be solved by the invention) The present invention solves the above-mentioned conventional problems and can prevent the generation of bacteria such as mold even during long-term use, and adheres to the surface to prevent bacteria. It was completed for the purpose of producing a resin rug having an antibacterial property, which can also kill and keep a sanitary condition at all times.

(Means for Solving the Problems) The present invention made to solve the above problems is made of silver,
A resin fiber containing one or more metal ions selected from copper and zinc and containing a powder of B ₂ O ₃ -based soluble glass that gradually elutes the metal ions was processed and molded. It is characterized by that.

In the present invention, the resin rug means a hollow or non-circular hollow resin fiber or solid resin fiber (see FIG. 2 (a),
(See (b)) means a garment, a leisure sheet, a waterproof sheet, and the like, which are processed and formed by knitting, thermocompression bonding, or the like. As the synthetic resin constituting these fatty fibers (1), general synthetic resins such as polyethylene resin, vinyl chloride resin and polypropylene resin can be used.

In the present invention, a powder of B ₂ O ₃ -based soluble glass capable of eluting one or more metal ions of silver, copper, and zinc into the resin fiber (1) at a constant rate. (2) is added to exert an antibacterial effect.

Here, the soluble glass is a general term for glass whose composition is adjusted in consideration of physical and chemical properties of glass so as to have a controlled melting rate, and contains a silver compound, a copper compound or a zinc compound. The B ₂ O ₃ -based soluble glass is capable of eluting silver ions, copper ions, or zinc ions at a fixed constant rate over an arbitrary period of several hours to several years. The antibacterial action of the eluted silver ion, copper ion or zinc ion can prevent the growth of various germs.

In the present invention, a powder of a B ₂ O ₃ -based soluble glass (2) containing one or more of such silver ions, copper ions or zinc ions is added to a resin raw material to form a resin fiber. (1) is prepared, and then, the resin fiber (1) is subjected to knitting processing, thermocompression bonding processing, etc. to be finally processed and molded into a resin rug. In this case, the particle size of the soluble glass powder (2) is 50μ.
The following is used, more preferably 20 μm or less. This is because if the particle size is too large, it becomes difficult to uniformly disperse the resin in the resin fiber (1), and the mechanical strength and moldability of the fiber are impaired. Further, the amount of the soluble glass mixed in the resin fiber is preferably in the range of 0.1 to 15% by weight, and if it is less than 0.1%, the antibacterial action is insufficient, and conversely if it exceeds 15%, the above-mentioned fiber original This is because the characteristics are lost. When the resin rug is formed by processing and molding two or more layers of resin fibers, the B ₂ O ₃ -based soluble glass powder is contained only in the resin fibers forming the outermost surface layer. Can be

(Function) In the resin rug of the present invention configured as described above, the slight water permeability of the synthetic resin film during use,
Moisture penetrates inside due to moisture permeability, and this moisture causes
A small amount of B ₂ O ₃ -based soluble glass is dissolved to elute silver ions, copper ions, or zinc ions having antibacterial properties. The elution amount of these metal ions is almost constant during a fixed period, and although this amount cannot be detected by a usual analysis method, it can be set to a sufficient amount to exert an antibacterial action. As a result, it is possible to prevent the generation of various germs on the resin rug or kill the adhering germs by the antibacterial action of silver ions, copper ions or zinc ions.

(Example) A B ₂ O ₃ -based soluble glass containing 0.5% by weight of Ag ₂ O in a glass consisting of 45% by mole of B ₂ O ₃ , 40% by mole of SiO ₂ , and 15% by mole of Na ₂ O was prepared. To obtain a powder having a particle size of 25 μm or less. This was kneaded in polyethylene resin at a ratio of 1.0% by weight to prepare a chip, and a resin fiber (1) having a hollow portion in the center was molded from the chip.

After that, the obtained resin fiber (1) is knitted into a lattice to form a sheet, which is further thermocompression-bonded to form a length and width of 1 m each and a thickness of 20.
A 0 μm resin mat (3) was processed and molded. The appearance such as transparency of the resin mat (3) was completely the same as the conventional one.

After using this resin mat (3) for 1 week, from any place
Ten test pieces of 5 cm square were cut out, and the presence or absence of various bacteria was examined by a culture test by agar culture. As a result, the number of bacteria measured in each test piece was 50 or less. On the other hand, when the same test was carried out with a resin garment of a comparative example containing no soluble glass powder, the number of bacteria measured was 6 × 10 ³ or more, and the resin garment of the present invention has excellent antibacterial properties. It was confirmed that the product has the property.

Incidentally, CuO 5.0% by weight containing the allowed the B ₂ O ₃ based soluble glass, and Ag ₂ O dissolution of B ₂ O ₃ system 0.3 wt% and ZnO is contained 1.0 wt% in place of Ag ₂ O Even when the same test was performed using a volatile glass, excellent antibacterial properties due to copper ions or zinc ions could be confirmed.

(Effect of the Invention) As is clear from the above description, the resin rug with antibacterial properties of the present invention has excellent antibacterial properties by gradually eluting antibacterial silver, copper or zinc ions during use. Since it can be exerted over a period of time, it can not only prevent the growth of various germs but also kill the germs adhering to the surface, and it is suitable as a sanitary resin rug. Therefore, the present invention has great practical value as a resin rug having antibacterial properties that eliminates the conventional problems.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view showing an embodiment of the present invention, and FIG. 2 is an enlarged sectional view of a resin fiber. (1): Resin fiber, (2): Powder of soluble glass.

Claims (1)

[Scope of utility model registration request] 1. A B ₂ O ₃ -based soluble glass powder (2) containing one or more metal ions selected from silver, copper and zinc, and capable of gradually eluting the metal ions. A resin rug having antibacterial properties, characterized by being processed and molded using the resin fiber (1) contained therein.