JP3024095U - Carpet laying structure with antibacterial and antifungal and deodorant function - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] Carpet is provided with an antibacterial, antifungal, deodorant and insecticidal function, which is maintained for a long time during use. SOLUTION: A polypropylene fiber non-woven fabric 2 and a carpet 3 are laid on a floor material 1. This polypropylene fiber is kneaded with a soluble glass containing silver ions and having a particle diameter of 50 μm or less. The nonwoven fabric 2 is temporarily fixed to the carpet 3 or the floor material 1.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a carpet laying structure having an antibacterial / antifungal / deodorant and insecticidal function, and particularly to a carpet laying structure that solves the problems of the occurrence of mold, dani, discoloration, and the persistence of antibacterial / antifungal / deodorant and insecticidal effect. Regarding

[0002]

[Prior art]

In the past, desiccants and insecticides were used, ventilation was improved, and occasional cleaning was performed for the antibacterial, antifungal and deodorant control of carpets. On the other hand, in order to maintain discoloration and antibacterial / antifungal / deodorant and insecticidal effect for a long period of time, generally, as a material with antibacterial / antifungal / deodorant and insecticidal properties, a nonwoven fabric (sheets with antibacterial / antifungal / deodorant and insecticidal function containing soluble glass is used (Including) is used. As the non-woven fabric of this type, for example, powder of silver, copper, or zinc ion-containing B ₂ O ₃ —SiO ₂ —R ₂ O-based glass described in JP-A-4-24258 is mixed or added. There is something like this. In this type of non-woven fabric, the antibacterial / antifungal / deodorant / insecticide function has a wide range depending on the composition of the soluble glass and the selection of the range of its addition amount.

[0003]

[Problems to be solved by the device]

 However, since the effects of desiccants and insecticides are not long-lasting, it is desirable to use a non-woven fabric having the above-mentioned antibacterial / antifungal and deodorant insecticidal function containing soluble glass. A non-woven fabric with a fungicide / deodorant function is intended to provide a general-purpose product intended for a wide range of applications such as clothing interlining, filter sanitary materials, daily necessities, towels, and sports equipment. Therefore, there is a problem that it is not necessarily the most suitable for carpet flooring.

The present invention has been made in view of such conventional problems, and specifies the kinds of antibacterial / antifungal / deodorant / insecticide functional metal ions to be contained in the fibers of the nonwoven fabric and the powder of the soluble glass. An object of the present invention is to provide a novel carpet laying structure which has solved the above-mentioned problems as a carpet laying structure having an antibacterial / antifungal / deodorant and insecticidal function, and which has never been seen.

[0005]

[Means for Solving the Problems]

 The carpet laying structure according to the present invention includes a floor material and an upper surface of the floor material, or a cushion material laid on the upper surface of the floor material, and is laid on the floor material or the cushion material with an adhesive, a temporary fastener, or the like. The non-woven fabric of polyolefin resin (including the sheet) temporarily fixed and a carpet laid on the upper surface of the non-woven fabric, the non-woven fabric of polyolefin resin is a soluble glass containing silver ions and having a particle diameter of 50 μm or less. It is characterized by including. Further, a carpet having a nonwoven fabric of a polyolefin resin containing a soluble glass containing silver ions and having a particle diameter of 50 μm or less may be laid on the floor material.

In the present invention, the material of the non-woven fabric is limited to the polyolefin resin. If it is not made of a hydrophobic material, silver ions will elute too much due to water absorption during many years of use, resulting in deterioration of antibacterial, antifungal, deodorant and insecticidal action. As a substitute for the hydrophobic resin, a polyolefin-based resin can be cited, and polypropylene resin and polyethylene resin are representative of the polyolefin-based resin. When fine-fine fibers are used as the material for the non-woven fabric, the latter cannot be obtained with fine-fine fibers, and is therefore limited to polypropylene resin.

Organic solvent-based adhesive components (binders) such as urethane, acrylic, synthetic rubber latex, and melamine emulsion can be used as a fiber adhesive for making a nonwoven fabric using fibers.

In addition to the method of using the above-mentioned binder, the method of making a non-woven fabric using fibers is a method of melt-bonding felt-like fiber webs, or a mechanical method of entwining fibers with each other by a needle punch method. There is also. Also, a polyolefin resin sheet can be used as the nonwoven fabric.

The soluble glass containing silver ions used in the present invention is a generic term for a glass whose composition is adjusted in consideration of the physical and chemical characteristics of glass so as to exhibit a limited melting rate. So, soluble glasses containing silver ions can elute silver ions at a defined rate over the years. The eluted silver ions are adsorbed on the cell wall of bacteria or microorganisms or condensed in the cell membrane, which inhibits the growth of bacteria and microorganisms by the so-called oligodynamic action and prevents the development of larvae, etc. It is possible to prevent discoloration of carpet and generation of offensive odor.

Generally, fungi, bacteria, sea urchins and the like propagate when the humidity is high, and when the humidity is low, the fungi and bacteria do not propagate very much. On the other hand, soluble glass elutes a large amount of its components when the temperature and humidity are high, and does not elute that component when the temperature and humidity are low, so there is a direct proportional relationship with the growth of mold and bacteria. It is in. That is, when bacteria and the like are easily propagated, a large amount of the antibacterial and antifungal and deodorant insecticidal components are eluted from the soluble glass. Conversely, when the bacteria and the like are not proliferated, the antibacterial and antifungal and deodorant insecticidal components are almost removed from the soluble glass. It is designed not to be eluted.

The amount of the soluble glass added varies depending on the particle size, but when the particle size is 50 μm or less, the range is preferably 0.1 to 30% by weight based on the weight of the nonwoven fabric. As a metal that releases ions as an antibacterial antifungal and deodorant insecticidal component contained in a soluble glass, copper, zinc, and other metal compounds having an antibacterial antifungal and deodorant insecticidal function are considered in addition to silver. Its safety and its antibacterial, antifungal, deodorant and insecticidal properties are limited to those that release silver ions.

When the elution amount of silver ions from the non-woven fabric constituting the carpet laying structure obtained by the present invention is 10 ng / cm ² / day or more in distilled water at 20 ° C., the propagation of bacteria and mold by oligodynamics, A favorable result was obtained by inhibiting the development of eels. The eluted silver ion exudes to the wool and the base cloth, exerts its antibacterial, antifungal, deodorant and insecticidal action on the entire carpet and continues.

The components of the soluble glass that can be used in the present invention include network-forming oxides such as SiO ₂ , B ₂ O ₃ and P ₂ O ₅ , or Na ₂ O, K ₂ O, CaO, MgO, BaO, It consists of a network-modifying oxide such as Al ₂ O ₃ , TiO ₂ , and ZnO. When it absorbs moisture, the water dissolves the soluble glass little by little, and the silver ions contained in the glass composition are eluted. Anything can be used without any particular limitation.

[0014]

[Embodiment of device]

 Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a sectional view showing an embodiment of the present invention, FIG. 2 is a sectional view showing a second embodiment of the present invention, and FIG. 3 is a sectional view showing a third embodiment of the present invention. . In FIG. 1, a non-woven fabric 2 of a polyolefin resin having an antibacterial / antifungal / deodorant and insecticidal function satisfying the above requirements is laid on the upper surface of a floor material 1 on which a carpet is laid, and at appropriate intervals on the periphery, At other intermediate positions, the non-woven fabric 2 is temporarily fastened to the flooring 1 by inserting a metal pin-shaped temporary fastening tool 3 from the non-woven fabric 2 to the flooring 1. Further, the carpet 4 is placed on the upper surface of the carpet, and the carpet 5 is fixed to the floor material by the joining tool 5 by a conventional method to form a carpet laying structure. In addition, 6 is a base fabric of a carpet, and 7 is a wool.

In FIG. 2 showing a second embodiment, a cushion material 8 made of felt or the like is laid on the upper surface of the floor material 1, and a non-woven fabric of a polyolefin resin having an antibacterial / antifungal / deodorant and insecticidal function is laid on the cushion material 8. 2 are overlapped with each other, at appropriate intervals on the periphery, or at other intermediate positions, from the nonwoven fabric 2 to the cushion material 8 or further to the floor material 1 and the metal pin-shaped temporary fasteners 3 are inserted to penetrate the nonwoven fabric. 2 is temporarily fixed to the cushion material 8. The mounting of the carpet 4 thereon is similar to that of the first embodiment described above.

FIG. 3 shows a third embodiment suitable for indoor floor covering, and in this embodiment, the back surface of the base cloth 6 of the carpet 4 is made of a polyolefin resin having an antibacterial / antifungal / deodorant insecticidal function. The bonded non-woven fabric 2 is laid on the floor material 1.

As the polyolefin-based resin nonwoven fabric 2 used in these embodiments, the following two types of nonwoven fabrics using polypropylene fibers containing silver ion-containing molten glass powder were used. [Example 1] When melt-spinning polypropylene, P was crushed to have a particle size of 25 µm or less. ₂ O_Five 50 mol%, MgO 44 mol%, Al₂O₃ 6 mol%, Ag₂Antibacterial, antifungal, deodorant and mosquito soluble glass powder having a composition of 0.5% by weight of O was uniformly mixed with 1.5% by weight based on the weight of the polymer and melt-spun to obtain a fiber length of 30 mm and a fineness. Short fibers of 3 denier were obtained.

The short fibers were dispersed in water using a paper making machine to make paper. Further, it was heat-pressed (at about 130 ° C.) with a calender roll machine and then heat-treated at 150 ° C. for 1 minute to finish a nonwoven fabric having a basis weight of 30 to 35 g / m ² . 25 cm ^{2 of} this non-woven fabric was cut out, immersed in 50 cc of water at a temperature of 20 ° C. for 24 hours, and the elution amount of silver ions was measured. The result was 40 ng / cm ² / day.

Further, this non-woven fabric was cut into a size of 9 cm ² (3 cm × 3 cm), and the spore suspension of green mold was applied on a normal broth agar medium and placed on the medium, followed by culturing at 24 ° C. for 4 weeks. Then, the length of the mold growth inhibition zone was measured, and the result was that no blue mold was found around 2 to 3 mm around the nonwoven fabric according to the present invention. The non-woven fabric did not yellow at all during these 4 weeks. By laying this non-woven fabric under the carpet, silver ions are also eluted in the carpet, and the same effect is exerted on the carpet.

Example 2 A commercially available non-woven fabric obtained by heat-sealing polypropylene (basis weight: 300 g / m ² ) was obtained. Soluble glass (P ₂ O ₅ 65 mol%, CaO 15 mol%, Na ₂ O 14 mol%, Al ₂ O ₃ 6 mol% to the basic glass composition, glass with Ag ₂ O 1.0 wt% added Was pulverized to 20 μm or less) was added to the acrylic aqueous emulsion so as to be 5% by weight / volume to prepare a suspension. After putting the above-mentioned non-woven fabric into the bath of this liquid, squeeze the liquid with a nip roller, remove excess water, and heat-bond at 140 ° C for 30 minutes to form a non-woven fabric with antibacterial / antifungal / deodorant / insect-proof function Finished

25 cm of this non-woven fabric²The amount of silver elution after immersion in 20 ° C. water for 24 hours was measured. Soluble glass deposition amount 8.0g / m², Silver ion elution rate 700 ng / cm ² The result was / day. Next, with respect to the inhibition of growth of green mold, after culturing on potato dextrose agar medium at 25 ° C. for 1 week, the inhibition zone of growth was observed. No blue mold was found around 5 mm around the nonwoven fabric. Furthermore, after this, after dipping this test subject in water for 1 day, we also observed that the deterioration of the blue mold growth inhibitory function due to the elution of silver ions was observed. As a result, a sufficient effect can be expected.

Further, in order to prevent the generation of dullness, the carpet in which the nonwoven fabric of Example 1 or Example 2 was laid down was compared with the ordinary carpet in which the underlay of the nonwoven fabric was not used. After 6 months of use in a hot and humid environment where dust easily occurs, 1500 to 2000 animals / 100 cm ² of dulls were generated in a normal carpet, while 10 in the carpet of Example 2. Only 20 animals / 100 cm ² . No particular difference was observed between the carpets woven with the nonwoven fabrics of Example 1 and Example 2.

[0023]

[Effect of device]

 According to the present invention, a hydrophobic polyolefin resin kneaded with molten glass powder containing silver ions is used as the material of the nonwoven fabric constituting the carpet laying structure, so that an appropriate amount of silver ions can be obtained over many years. The elution can be continued. In addition, since the composition of the soluble glass having antibacterial and antifungal and deodorant insecticidal functions and the addition amount thereof can be selected in a considerably wide range, the antibacterial and antifungal and deodorant insecticidal functions can be broadened. Since the ingredient having the fungicide / deodorant and insecticidal function is limited to the silver compound which is safe for human body, it can be used for the carpet laying structure without any problem from the viewpoint of safety and hygiene.

In the case of indoor lining, the non-woven fabric is temporarily fixed to a floor material or the like for easy construction, and is fixed to the floor material together with the carpet after completion, so that it will not easily be frayed and worn even if used for many years. In the case of indoor floor coverings, a non-woven fabric is adhered to the back of the carpet, so it will exhibit antibacterial, antifungal, deodorant and insect repellent for a long period of time without slipping or fraying during use.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of a carpet laying structure having an antibacterial / antifungal / deodorant insecticidal function according to the present invention.

FIG. 2 is a sectional view showing a second embodiment of the present invention.

FIG. 3 is a sectional view showing a third embodiment of the present invention.

[Explanation of symbols]

 1 Floor material 2 Non-woven fabric 3 Temporary fastener 4 Carpet 5 Joiner 6 Base cloth 8 Cushion material

Claims (5)

[Scope of utility model registration request] 1. A floor material, a nonwoven fabric of a polyolefin resin laid on the upper surface of the floor material and temporarily fixed to the floor material, and a carpet laid on the upper surface of the nonwoven fabric, wherein the nonwoven fabric of the polyolefin resin is , Particle size containing silver ion 50μ
A carpet laying structure having an antibacterial, antifungal, deodorant and insecticidal function, characterized in that it contains a soluble glass of m or less. 2. A floor material, a cushion material laid on the upper surface of the floor material, a non-woven fabric of polyolefin resin temporarily fixed to the upper surface of the cushion material, and a carpet laid on the upper surface of the non-woven fabric, A carpet laying structure having an antibacterial / antifungal / deodorant and insecticidal function, wherein the polyolefin-based resin non-woven fabric contains a soluble glass containing silver ions and having a particle diameter of 50 μm or less. 3. The carpet laying structure according to claim 1, wherein the temporary fixing is made by an adhesive. 4. The carpet laying structure according to claim 1, wherein the temporary fastening is performed by at least a temporary fastening tool that is inserted between the non-woven fabric and a floor material or a cushioning material that is in contact therewith. 5. A carpet laying structure in which a carpet having a non-woven fabric of a polyolefin resin adhered to the back surface is laid on a floor material, wherein the non-woven fabric of the polyolefin resin has a solubility of silver ions and a particle diameter of 50 μm or less. A carpet laying structure having an antibacterial, antifungal, deodorant and insecticidal function, characterized by containing glass.