KR100656678B1 - nano-silver photocatalyst mat - Google Patents

Abstract

The invention is coated with a silver component and a photocatalyst component on the top surface of the mat base material made of microfiber, and the nonwoven fabric is bonded to the back side of the mat base (the side without the pile), and the latex containing ocher on the back side of the nonwoven fabric. The coating provides excellent dimensional stability, light weight and no pile, excellent pile upperature, good hygroscopicity and ease of manufacture, as well as a silver component and photocatalyst on the upper surface of the mat base. Since the photocatalyst component is coated, antibacterial and bactericidal power and oxidative power by photocatalyst are generated at the same time, it shows synergistic effect against antibacterial and deodorization. It becomes longer, and even when there is no light at night, harmful organic compounds and bacteria are adsorbed, And chakdoen material is decomposed, by emitting far infrared rays and anions that the loess is contained in the latex will have its object to provide a harmless, and economical efficiency is high and the mat of value to humans.

  Matt, Latex Coating, Non-Woven Fabric, Silver Nano, Photocatalyst, Ocher

Description

 Nano-silver photocatalyst mat

1 is a perspective view showing an example of the present invention

      Figure 2 is a partially enlarged cross-sectional view showing an embodiment of the present invention

      Figure 3 is a cross-sectional view showing an example of a conventional mat

   Explanation of symbols on main parts of drawing

   A: Matt

   1: Base fabric 2: Matt file

   10: Matt Base 11: File

   12: silver component 13: photocatalyst component

   15 nonwoven fabric 16: latex coating

The present invention relates to a silver nano photocatalyst mat. More specifically, a silver component and a photocatalyst component are coated on the upper surface of the mat base fabric, and a nonwoven fabric is bonded to the back side of the mat base, and the back side is coated with artificial rubber such as latex containing ocher. The present invention relates to a silver nano photocatalyst mat that has good deodorization, antibacterial and bactericidal properties, and emits far infrared rays and anions to help human health by cutting and finishing.

The mat of the present invention blocks the inflow of dust or moisture indoors by placing the entrance and entrance of shops, hotels, hospitals, etc. and the bathroom entrance of the home, the sink or on the floor of the living room or the office, and the dust attached to the sole of the foot. It removes moisture and deodorizes, antibacterial and far-infrared rays, negative ions, etc. to maintain a healthy and pleasant indoor environment for the health of the human body, to decorate the room, to prevent the noise of the room, insulation effect.

Such mats are typically formed by inserting piles into taffeta fabrics, applying latex to the backside (the side where the piles are not planted), and then applying heat and pressure to attach the solid rubber. It has been manufactured and used.

The mat is deformed, bent and folded due to the external force exerted on the base fabric when the base fabric obtained by inserting the pile into a fabric such as a taffeta is treated with latex, cuts, or affixed solid rubber, In addition to shortening of product life due to poor dimensional stability, such as warping of the product, and the inability to insert the file densely, the file value is not easily lost, and the file thread is generally nylon, acrylic, cotton, Synthetic fiber made of rayon or vinylon is extremely poor in hygroscopicity, and in the case of natural fiber such as cotton, the price is expensive. Since the weight was heavy, there was a problem in logistics costs such as transportation.

On the other hand, as a technique for improving the dimensional stability, which is a disadvantage of the prior art, uniformly disperse staple fibers or filament short fibers in a woven or nonwoven fabric, and by forming a base fabric (base wool) by needle punching, etc. 1) After fabrication of 1), it is heated to partially melt-bond and soften the fibers in the mat pile (2) and the base fabric (1) or the base fabric (1), and then soften the elastomer on the surface of the mat pile (2). While methods of forming backings have been disclosed, this solves some of the dimensional stability problems, such as deformation, bending, folding and warping of the product, but as described above, it is difficult to compact the planting and the file is long. Since the uprights are deteriorated, it is difficult to form an elastomer backing on the pile surface and requires a large number of processes. Said, was more than anything because a person a lot of moisture and warm in the next bathroom entrance, kitchen sink at the entrance and the homes of the entrance hall and shops, hotels, hospitals and out, and the unsanitary factors in the propagation of bacteria and one koekoe smell.

In addition, in order to solve the above-mentioned drawbacks of the prior art, the applicant has bonded the nonwoven fabric to the back side of the fabric of the pile fabric using microfiber, and coated the back side with artificial rubber such as latex to cut and overlock the mat with good hygroscopicity. Although it has been previously filed, it is not only excellent in dimensional stability, but also light in weight, and does not come out of pile, and it has a high pile up property, good hygroscopicity and good manufacturing process, so that it can provide high value-added mat at low price. There was a defect that was not hygienic due to the removal of dirty odors or the absence of antibacterial and antiseptic action.

The present invention for solving the above problems is coated with a coating agent having a silver component and a photocatalyst component on the upper surface of the mat base material using the microfiber on the top surface of the mat base material and on the back surface of the mat base (fileless side) By adhering the nonwoven fabric and applying the latex coating containing ocher on the back side of the nonwoven fabric, it is not only excellent in dimensional stability but also light and pile-free, and the pile is dense, so it has excellent upright characteristics, good hygroscopicity and simple manufacturing process. In addition to providing a high value-added mat at a price, it is excellent in antibacterial and bactericidal action and emits far-infrared rays and anions, which is to provide a mat that is beneficial to human health.

In the present invention, in the mat (A), using a microfiber of 0.1-1.0 denier (denier), a 150-3,000 denier multifilament yarns are manufactured to produce a mat base material 10 having a length of 3 to 20mm pile 11 On the upper surface of the mat base 10, an inorganic colloid type in which a silver component 12, a photo-catalyst component 13, and an inorganic binder are dispersed in pure distilled water in ultrafine form. ) Is coated on the back side (without pile) and 30 ~ 500g / m² nonwoven fabric 15 is bonded with adhesive 14, and latex is made by using latex mixed with 3 ~ 10wt% ocher on the back side of nonwoven fabric. It is characterized by embossing after the coating (16).

In the above, the mat base 10 may be manufactured by a single-sided pile knitted fabric or tufting method, and the microfiber uses a multifilament yarn, which is difficult to use because the microfiber of less than 0.1 denier is difficult to manufacture. If the thickness is greater than 1.0 denier, the uprightness is good but the hygroscopicity is deteriorated. If the plywood is less than 150 denier, the pile 11 looks sluggish and the uprightness is poor. If the thickness is over 3,000 denier, knitting or tufting work It is difficult and the product is too thick, the problem of only increasing the weight, the hygroscopicity is extremely reduced when the length of the pile (11,) is less than 3mm, the file may be tangled or deteriorated upright characteristics over 20mm.

In addition, in order to coat the silver component 12 and the photocatalyst component 13, an inorganic colloid type of an inorganic colloid type in which the silver component 12, the photocatalyst component 13, and the inorganic binder are dispersed in pure distilled water in ultrafine form. The nanocoating agent is coated by a spray method or the like and heat-treated. The silver component uses nano-silver, the photocatalyst component uses titanium dioxide (TiO ₂ ), and the nano coating agent refers to a colloidal nano-size silver solution. It refers to a coating agent in which the particles are dispersed in a dispersion medium, which is a natural antibiotic that easily penetrates into cells such as viruses, fungi, bacteria, etc., and breaks down and dies.

As a coating agent, inorganic silver binders such as 50 to 500 ppm of nanosilver, 0.1 to 10 wt% of titanium dioxide (TiO ₂ ), aluminum oxide (Al ₂ O ₃ ), silica (SiO ₂ ), or zirconium oxide (ZrO ₂ ) may be used. What is dispersed in ultrafine particles in 70 to 80 wt% of distilled water and 10 to 20 wt% of ethanol can be easily used by a spray method or the like.

When the content of nano silver and titanium dioxide is less than 50 ppm and 0.1 wt%, the silver nano photocatalytic effect, that is, antibacterial deodorization, etc., is reduced, and when the content exceeds 500 ppm and 10 wt%, the price of the product increases and the adhesive strength is weakened easily. Since it desorbs, it shortens the lifespan. If the content of the inorganic binder is less than 0.1wt%, the adhesion decreases. If the content of the inorganic binder exceeds 3wt%, the work of spraying is affected. If the content of ethanol is less than 10wt%, the coating activity is also decreased. It is weak and adversely affects the work of spray, etc. If it exceeds 20wt%, it is not good because the coating agent flows down during the coating work because the activity is strong, and the distilled water is in the range of 70 ~ 80wt% except the content of other mixtures. It is to be done.

Silver (silver) is excellent in bactericidal, antibacterial and immune function, the photocatalyst component is to decompose various bacteria and contaminants by promoting the catalytic reaction as a light energy source, titanium dioxide is a photocatalyst as acid resistance, alkali resistance, etc. It is most desirable because it is good and harmless to the human body. In particular, titanium dioxide generates active oxygen and hydroxyl radicals when exposed to light, which decomposes organic compounds harmful to the human body, converts them into water and carbon dioxide, and destroys the cell membranes of bacteria. It is known to completely decompose even a strong toxin called endotoxin.

Therefore, when silver nano photocatalyst coating agent is used, antimicrobial and bactericidal power by silver nano and oxidative power by photocatalyst are generated at the same time, thus showing synergistic effect against antibacterial and deodorization, and yellowing (discoloration) does not occur and oxidative decomposition does not occur. Its long lifespan, harmful organic compounds, bacteria, etc. are adsorbed even in the absence of light at night, and when the light is received again, the adsorbed substances are decomposed by the photocatalyst, harmless to the human body and have high economical effect.

On the other hand, when using the latex coated on the back side of the nonwoven fabric 15 alone, since the latex is close to white, there is a closed end that is easily contaminated due to dust or dirt, which is mixed with loess in the latex to improve this and make the room comfortable. If the content is less than 3wt%, the change of color is small and the effect of the infrared rays or anion is less emitted.The effect is lowered.When the content of ocher is more than 10wt%, the color becomes more pronounced, but the adhesion of latex decreases and the life of the product is shortened. Problem occurs.

In addition, if the weight of the nonwoven fabric 15 is less than 30g / ㎡ the weight of the mat is lighter, but when the finishing processing, due to the excessive elasticity of the mat base 10, the mat phenomenon of the mat base 10 occurs, the edge of the mat If the weight of the mat becomes heavier than 500g / m2, the weight of the mat becomes heavy, and the nonwoven fabric 15 is made of viscose rayon or polypropylene (PP) short fibers in terms of workability or mat weight reduction. Good, it is possible to use a sponge having a thickness of 1 to 3mm instead of the nonwoven fabric 15, in the case of using a sponge if the thickness of the sponge is less than 1mm, the cushioning of the mat is reduced, if the thickness exceeds 5mm Too thick, making it difficult to work such as overlocking in finishing, which can lead to a decrease in workability and a price increase.

By embossing the entire surface of the coating after the latex coating 16, it is a matter of course that the slip phenomenon of the mat A can be prevented.

As a result of requesting the mat of the present invention to the Korea Consumption Science Research Center (see test report), after 18 hours of incubation of Staphylococcus aureus and pneumococcus pneumoniae, the number of viable cells was less than 10, resulting in a 99.9% bacteriostatic rate. It shows that the formaldehyde gas deodorization rate of 46% at 30 minutes, 73.6% at 60 minutes, it can be seen that the mat of the present invention has excellent antibacterial activity (sterilization power) and deodorizing effect.

On the other hand, the present invention has been described in detail with respect to a mat using a microfiber, the present invention is a natural to show the same effect using any other yarn other than microfiber, it is applied to the mat as well as rug (rug), carpet (carpet), etc. Of course, it is possible to change the material or use of the material without departing from the technical scope of the present invention, of course.

As described above, the mat of the present invention is coated with microfiber upper and lower surfaces of the mat base so that there is little hair loss or dust, hygroscopicity is good, and the edge of the mat is caused by the sliding of the mat base during finishing. It is not only excellent in dimensional stability, such as no crushing or twisting, but also light and compact, so it has excellent upright characteristics, easy to manufacture, and also has a silver component and a photo-catalyst on the top of the mat. Because the components are coated, antibacterial and bactericidal power and oxidative power by photocatalyst are generated at the same time, which shows synergistic effect against antibacterial and deodorization. Even at night when there is no light, harmful organic compounds and bacteria are adsorbed. It is, also useful inventions which generates far infrared rays and anions that can negatively loess is contained in the latex is provided a mat of beneficial and high economic value-added to the human body.

Claims (4)

In the mat (A), a mat base material 10 having a length of 3 to 20 mm is produced by plywood with 150 to 3,000 denier multifilament yarns using a 0.1 to 1.0 denier microfiber to manufacture a mat base material. (10) The inorganic colloid type (inorganic colloid) in which silver (12), photo-catalyst (13), and inorganic binders are dispersed in pure distilled water in ultrafine form on the top surface of the fabric pile (11). type nano-coating agent, and 30 to 500 g / m 2 nonwoven fabric 15 is bonded to the back side with adhesive 14, and 3 to 10 wt% of loess is mixed on the back side of the nonwoven fabric. Silver nano photocatalyst mat, characterized in that the embossed after the latex coating (16) by using. The method of claim 1, wherein the inorganic colloid type nano coating agent is a nano-size silver (colloid nano-size silver) solution of 0.0015 ~ 0.015 ㎛ silver particles are dispersed in a dispersion medium in a state in which the photocatalyst component is titanium dioxide (TiO ₂ ) Silver nano photocatalyst mat characterized by using. The inorganic coating agent according to claim 1, wherein the nano coating agent is 50 to 500 ppm of nanosilver, 0.1 to 10 wt% of titanium dioxide (TiO ₂ ), aluminum oxide (Al ₂ O ₃ ), silica (SiO ₂ ), or zirconium oxide (ZrO ₂ ) A silver nano photocatalyst mat comprising 0.1 to 3 wt% dispersed in 70 to 80 wt% of distilled water and 10 to 20 wt% of ethanol in ultrafine form. The silver nano photocatalyst mat according to claim 1, wherein a sponge having a thickness of 1 to 3 mm is used instead of the nonwoven fabric (15).

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