KR20090078205A - A antifungal sheet and the making method blocking harmful bacterium - Google Patents

Abstract

Provided are an antibacterial sheet having a harmful bacterium-blocking function which is harmless to the human body and formed in the form of packing sheets for fruits, vegetables and grains, and which imparts an antibacterial function to articles molded using the antibacterial sheet, and a manufacturing method thereof. A method of manufacturing an antibacterial sheet having a harmful bacterium-blocking function comprises: a first step of melting salt to a high temperature of 850 to 1000 deg.C to remove impurities from the salt, and cooling and crushing the molten salt to obtain a molten salt powder; a second step of mixing and dissolving 100 parts by weight of a water-soluble binder and 25 to 100 parts by weight of the salt powder to obtain a salt adhesive solution; and a third step of impregnating or applying the salt adhesive solution onto material selected from fiber, synthetic resin, and paper.

Description

A antifungal sheet and the making method blocking harmful bacterium}

The present invention relates to an antimicrobial sheet product and a method for manufacturing the same, and relates to a sheet product incorporating salt into a fine powder shape as a harmful bacterium blocking function material.

More specifically, the present application requires hygiene and simultaneous cleanliness, and uses salt as a functional material that can sterilize harmful bacteria if there are harmful bacteria generated. However, the molten salt fine powder has high adhesive strength to fibers, synthetic resins or paper sheets. To dissolve the concealing power while dissolving salt powder, use potassium silicate as a thickener to adjust the viscosity and adjust the viscosity, and add titanium dioxide if you want to increase the whiteness. Have a technical idea

In using the salt as a harmful bacterium blocking function material as an antimicrobial sheet product in the present application, the means using the salt is based on 100 parts by weight of the water-soluble binder, mixing the salt powder in the proportion of 25 to 100% by weight of the binder used and this The present invention relates to a technique for obtaining an antimicrobial sheet having a harmful bacterium blocking function by being provided, including a process of impregnating and / or applying a fiber nonwoven fabric, a synthetic resin sheet material, or paper to be used.

Recently, with increasing environmental concern, there are many people in our daily lives who complain of skin itch due to allergic diseases.

Most allergic diseases have been reported by pollen, yellow dust or dust mite in spring, and many people have recently complained of allergic diseases as they start using beds in our daily lives. In reality, the term 'sick house syndrome' has been used to induce headaches and skin diseases by using internal chemicals or adhesives using chemicals in new buildings or furniture, but recently, skin disease is enough to come up with the word 'book syndrome'. And allergic problems are becoming social issues.

Book syndrome is the use of chemical inks when printing pictures or letters on books, especially when children's books are provided with paints, balloons, and rubber products. Refers to a phenomenon that causes skin problems in weak children.

In addition, it requires higher cleanliness for doctors' uniforms, surgical clothing, hospital bed sheets, patient's clothing and blankets, etc. Mite allergic diseases have been reported.

In addition, clean room is needed to maintain high level of cleanliness in industrial production facilities such as semiconductors, and in connection with household appliances used in general households, these products also have antibacterial effects due to dust and allergic diseases caused by ticks. There is a growing demand to satisfy both hygiene and eco-friendliness.

As in the above example, doctors' uniforms, surgical clothing, hospital bed sheets, patient's clothing and blankets, living room wallpaper, curtains, even textbooks and books are required for antimicrobial function, in addition, fruit as a food packaging material In addition, packaging materials for vegetables and grains are required to have antimicrobial function while being harmless to the human body, and there is a wide range of areas where the possibility of contact or proliferation of bacteria or viruses due to recent changes in the natural environment such as yellow dust and ozone concentration is increased. The invention was devised in view of the fact that various articles used in these facilities require antimicrobial properties having hygiene and eco-friendliness.

In order to impart antimicrobial properties to these products, oil and inorganic antimicrobial agents are generally used. However, organic antimicrobial agents have good effects at first, but it is difficult to sustain them, and stability to the human body is not guaranteed. There was a problem.

In general, salt promotes blood circulation by releasing far infrared rays, and it has excellent detoxification and sterilization effects. When sweating on the steam, the salt is removed toxins from the body and the growth of bacteria is suppressed. In addition, the general salt that is not processed has deliquescent at room temperature, but rock salt, bamboo salt, etc. are easily dissolved in water and have weakness in adhesion and adhesion. In order to remove the present invention, the molten salt obtained through the process of removing impurities and cooling by heating for a long time at a high temperature in the range of 850 ~ 1000 ℃ to use.

Molten salt is very different from ordinary salt, that is, it has little deliquescent property at room temperature, and it is not easily dissolved in water and hardly penetrates water. In this case, molten salt powder is used to provide an antibacterial sheet having a function of blocking harmful bacteria, but the molten salt fine powder is first applied to a water-soluble binder in order to remove hiding power while providing durability and high adhesion to fibers, resins, and papers. To dissolve salt powder and to use potassium silicate as a thickener to adjust the viscosity, the antimicrobial sheet provided by the technical idea of the present invention is secured its stability, economical, simple manufacturing process, high antibacterial activity and antibacterial Completed invention confirming that spectrum can be applied to a wide range of areas to be.

It is an object of the present invention to provide a salt having an antimicrobial and antiviral effect as an antimicrobial sheet of various articles which may be contacted or proliferated by bacteria or viruses. The applied embodiment can be applied to doctor's gowns, patient clothing, bed sheets and quilts, curtains, etc. in hospitals and homes, the synthetic resin is applied as an antimicrobial sheet is a package of food, fruit, vegetables or grain packaging It can be applied in the form of packaging material that is harmless to the human body and has antibacterial function, and the form in which the feeder is applied as an antimicrobial sheet can be applied to wallpaper, cardboard or printing paper, and also to give antimicrobial properties to home appliances factory and its products. Coating the surface of a clean room or appliance or It is an object of the present invention to provide an antimicrobial sheet in a form capable of imparting an antimicrobial function to an article to be molded and mixed with raw materials.

Still another object of the present invention is to provide a method for producing the antimicrobial sheet as described above.

In order to achieve the above object, the present invention is a method for producing an antimicrobial sheet having a harmful bacterium blocking function, the first step of melting the salt at a high temperature of 850 ~ 1000 ℃ to remove impurities and then cooled and crushed to obtain molten salt powder Based on the process and 100 parts by weight of water-soluble binder, the second step process of mixing and dissolving the salt powder in a proportion of 25 to 100 parts by weight to obtain a salt adhesive, and impregnating or applying the salt adhesive to a material selected from fibers, synthetic resins and paper By providing a third step to make it possible to obtain an antimicrobial sheet having a harmful bacterium blocking function.

5 to 20 parts by weight of potassium silicate may be added to the composition ratio to adjust the viscosity of the salt adhesive in the second step process, and 5 to 20 parts by weight of titanium dioxide is used to increase the whiteness and increase the sharpness. The invention is completed by confirming that the desired object of the desired physical properties can be obtained.

Therefore, the antimicrobial sheet provided herein uses molten salt as a harmful bacterium blocking function material, melts the salt at a high temperature of 850 to 1000 ° C. to remove impurities, and then cools and crushes the molten salt to obtain a molten salt powder. In case of standard, melted salt is mixed and dissolved in 25 to 100 parts by weight to obtain salt adhesive, and patient clothing that is used in hospital for antibacterial sheet obtained by impregnating or applying salt adhesive to material selected from fiber, synthetic resin or paper, It can be used for bed, bedding, doctor's gown, etc.The synthetic resin antimicrobial sheet is a packaging material such as plant spores and flowers, and a packaging material for foods. It can be applied in the form of packing materials that it has, and can be used as wallpaper, cardboard, or printed paper of buildings. In addition, the antimicrobial sheet of the present application, which is also provided for use in a clean room of a factory or an accessory of a home appliance, is secured in its stability, and has a simple manufacturing process and is economical. do.

The salt used in the present invention is selected from the general salt, rock salt or bamboo salt and put into a heating furnace to be heated in the range of 850 to 1000 ℃ to melt in the liquid state and to cool and pulverize the melt produced in the melting process Although used in powder form, the salt powder is evenly dispersed in the water-soluble binder, and the binder used in the present invention may be silicone modified acrylic resin, urethane resin, acrylic resin, silicone resin, and the like. Binders that can disperse and impart high adhesion to fibers or synthetic resin sheets can be used without limitation.

The technical idea of the present invention is, for example, as a raw material used as an exterior material in home appliances, silicon (silicone), polyurethane (polyurethane), polystyrene (polyethylene), polypropylene (PP), polyvinyl chloride (Polyvinylchloride: By dispersing molten salt evenly in the binder in raw materials such as PVC), latex, latex, and ABS resin (Acrylonitrile Butadiene Styrene: ABS), it can be used in combination with a water support material to give antibacterial properties.

In addition to the technical idea of the present invention in order to increase the antimicrobial effect silver nanoparticles (Ag), zinc (Zn), copper (Cu), platinum (Pt), iron (Fe), cadmium (Cd), palladium (Pd) ), The metal particles selected from rhodium (Rh), chromium (Cr) alone or in combination of two or more alloys of the molten salt evenly dispersed in the binder can be used together to increase the antimicrobial activity.

This company provides sheet material with antibacterial antiviral function and antibacterial antibacterial function, so that it can be contacted or multiplied by bacteria and viruses, such as doctor's gown, patient's clothing, hospital bed sheet, and quilt sheet. It can be provided in the form of packaging material for fruits, vegetables or grains, or packaging for plant spores as a wallpaper material, a floor covering material, a curtain material, or a food packaging material of a living room. In addition, it has an effect that can be usefully used in a clean room for providing antimicrobial properties to home appliances factories and their products.

In addition, the technical idea of the present application has an effect that can be provided as an article imparted with antimicrobial function, such as coated on the surface of the home appliances or molded with the raw materials to make such products.

The present application as a specific means for achieving the above object, in the first step to obtain molten salt to prepare the raw material for obtaining the antimicrobial sheet in the first raw material pre-treatment process using the normal salt in the high temperature heating process of 850 ~ 1000 ℃ completely provided with impurities After cooling and crushing to obtain molten salt powder, in the second step, molten salt fine powder is first dissolved in a water-soluble binder and the viscosity is adjusted to give high adhesion to sheets selected from fibers or synthetic paper. In order to increase the whiteness of the final object and to increase the printing sharpness, it is necessary to use salts of potassium silicate as a thickener, and to obtain salt adhesive by adding titanium dioxide.The third step is textile nonwoven fabric material, synthetic resin sheet material or paper. Block harmful bacteria by means of impregnating and / or applying molten salt to the sheet Is a complete invention confirmed that the antibacterial sheet can be obtained having a capability.

Hereinafter, each processing process for implementing the technical idea of the present application will be described in detail.

[Example of First Step Raw Material Pretreatment Process]

It is preferable to use molten salt for the salt used in the first step process. In order to solve the problem that general salt is deliquescent at room temperature, rock salt or bamboo salt is easily dissolved in water, and adhesive strength or adhesion is weakened. Or salt salt or bamboo salt was heated to a high temperature in the range of 850 ~ 1000 ℃ for a long time to remove the impurities and then cooled molten salt was used.

The molten salt is pulverized and made into fine powder as much as 1000 mesh as fine particles as possible and mixed in a water-soluble acrylic binder to be deposited or coated on a nonwoven fabric, a synthetic resin or a paper sheet.

[Example of the second stage salt adhesive preparation process]

Salt particles are difficult to maintain long-term bond strength with other materials, and it is a big task to prevent the phenomenon of breaking the bonding structure and partially detaching after drying. Here, in order to solve this problem, the water-soluble acrylic resin provided by a special blending ratio and a manufacturing method is solved. It was made by making an aqueous solution and adding potassium silicate to it to make it possible to adjust the viscosity and solidify adhesion.

First, a method of preparing an embodiment of obtaining a water-soluble acrylic binder as a raw material preparation step 1 is as follows.

A water-soluble acrylic binder was prepared by synthesizing in a reaction furnace in the following composition ratio.

BAM (Buthyl Acrylate Monomer) 20 parts by weight, EAM (Ethyl Acrylate Monomer) 10 parts by weight, AAC (Acrylic Acid) acrylic acid 3 parts by weight, AN (Acrylo Nitile) 1 part by weight, N-mam (Normal Methylol Acryl Amide) 1 weight Parts, 55 parts by weight of H 2 O (water), 0.25 parts by weight of Amonium Hydroxide ammonia, 0.5 parts by weight of Silicon Antifoam, 0.25 parts by weight of Amonium persulfornate, 0.5 parts by weight of Sodium Bi Sulfide, and synthesized in a reactor for 24 hours. The reaction was carried out to prepare a water-soluble acrylic binder.

In the state in which the raw material is prepared, first to make a water-soluble solution provided, including 50 to 80 parts by weight of water-soluble acrylic resin binder, 5 to 25 parts by weight of potassium silicate, 5 to 15 parts by weight of titanium dioxide based on 100 parts by weight of water, 25 to 60 parts by weight of the salt powder is mixed with the aqueous solution and stirred to obtain a salt-coated solution in the form of dough.

In the above process, not only the water-soluble acrylic binder but also the potassium silicate maintains the proper viscosity between the salt component and the target material and maintains the bonding force so that no desorption occurs after drying, while also having the far-infrared radiation effect of the salt component to block harmful bacteria. It seems to function.

[Example of the third step antimicrobial sheet manufacturing process]

The third step process is a step of obtaining an antimicrobial sheet in which salt is applied to a certain thickness by impregnating or applying a salt adhesive obtained in the second step to a nonwoven fabric or a synthetic resin sheet, which will be described with reference to FIG. 1. I would like to.

Figure 1 shows an embodiment of the schematic flow of the salt adhesive liquid to the material and then to obtain a sheet material having a harmful bacterium blocking function, showing the process overview, the target material is a non-woven fabric or synthetic resin sheet or third Material may be used.

In FIG. 1, the nonwoven fabric 10 is wound around the soak roll 1 and the salt dough 20 is 60 parts by weight based on 100 parts by weight of water exemplified in the second step process. , 14 parts by weight of potassium silicate, 5 parts by weight of titanium dioxide, 1.5 parts by weight of a silicone-based dispersant are mixed and sufficiently stirred to form an aqueous solution first, and then 50 parts by weight of salt is mixed and stored in the salt dough furnace 20, and the nonwoven fabric (10) is introduced into the salt dough (20) via the tension roller (2) to impregnate the salt component in the nonwoven fabric fabric (10) over the support rollers 3, 4, and constant pressure roller 5, 6 for adjusting the impregnation thickness The primary processed salt-containing nonwoven fabric 30 containing the salt component in the thickness is dried by a hot rolling roller (7, 8) or a separate drying furnace 40 is sent to the next process.

The next process may be omitted or optionally additionally applied as necessary, for example, a release paper film may be simply attached to one side of the salt-containing nonwoven fabric 30 that is primarily processed or may be provided with a third flame retardant or the like. The functional solution 11 for imparting is applied to one side of the salt-containing nonwoven fabric 30 which is firstly processed in a storage tank, and the release paper film 12 is released from the dripping roll 12-1 to the outside thereof, and the bottom of the antibacterial sheet material On the other side of the primary processed salt-containing nonwoven fabric 30, an adhesive is contained in the storage tank 13, and a material 50 for adding a release paper diameter or a fourth function provided separately may be provided. The sheet is released from the pickling roll 50-1 and pressed to form the skin portion of the antimicrobial sheet, thereby obtaining a sheet having a harmful bacterium blocking function, and pressed by the pressing rollers 14 and 15 to a predetermined thickness. By applying hot press (Hot press: 60) or cold press (Cold press) press to increase the bonding density and cooling the product by blowing cool air by the cooling blower (70) and cutting process to the required standard (80 By cutting to a certain standard by an) shows an embodiment that can be provided as an antimicrobial sheet.

In the process shown in FIG. 1, the target material having a harmful bacterium blocking function has been described as an example of a nonwoven fabric 10, but this is a synthetic object film sheet or a third textile paper or paper, which is deformed and processed to have a harmful bacterium blocking function. It can be applied to the material will be a means that can be applied to any number of changes so that a separate description is not necessary for those skilled in the art will be omitted further detailed description.

1: Schematic process diagram that can be applied to the production of antimicrobial sheet of the present application

** Description of the symbols for the main parts of the drawings **

1 nonwoven fabric loading roll 2 tension roller

3, 4: nonwoven fabric support roll 5, 6: press roller

7, 8: hot rolling roller 9: salt adhesive liquid storage tank

10 nonwoven fabric 11 adhesive

12: release film 12-1: release film deposition roll

13: adhesive 14, 15: pressure roller

20: salt paste liquid dough 30: salt non-woven fabric 40: drying furnace 50: functional sheet material

60: hot press 70: cooling blower

80: cutting process 100: sheet with antibacterial function

Claims (8)

In the manufacturing method of the antimicrobial sheet having a harmful bacteria blocking function, A first step of melting the salt to a high temperature of 850 to 1000 ° C. to remove impurities and then cooling and crushing the salt to obtain molten salt powder; A second step of mixing and dissolving 25 to 100 parts by weight of the salt powder to 100 parts by weight of the aqueous binder to obtain a salt adhesive; A third step of impregnating or applying a salt adhesive to a material selected from fibers, synthetic resin, and paper; Antimicrobial sheet manufacturing method characterized in that to obtain an antimicrobial sheet having a harmful bacteria blocking function provided by including. The method of claim 1, Antimicrobial sheet production method characterized in that to use 5 to 20 parts by weight of potassium silicate to the composition ratio to adjust the viscosity of the salt adhesive in the second step process. The method according to claim 1 or 2, Antimicrobial sheet manufacturing method characterized in that to use 5 to 15 parts by weight of titanium dioxide in the composition ratio to increase the white sharpness in the second step process. In the antibacterial sheet having a harmful bacteria blocking function, Antimicrobial sheet product is obtained by using molten salt as a harmful substance blocking function material, melting salt at high temperature of 850 ~ 1000 ℃ to remove impurities, cooling and crushing to obtain molten salt powder, and molten salt in 100 parts by weight of water-soluble binder. The mixture is dissolved in a proportion of 25 to 100 parts by weight to obtain a salt adhesive, and the antimicrobial sheet having a harmful wave blocking function, characterized in that it is provided by impregnating or applying the salt adhesive to a material selected from fibers, synthetic resin or paper. In the method using the antimicrobial sheet of claim 4, The method of using the antimicrobial sheet of claim 4 using the antimicrobial sheet selected from patient clothing, doctor's clothing, bed sheets, duvets, and curtains. In the method using the antimicrobial sheet of claim 4, A method of using the antimicrobial sheet according to claim 4, wherein the antimicrobial sheet is selected from among wallpaper, sheet paper, and printed paper. In the method using the antimicrobial sheet of claim 4, The antimicrobial sheet of claim 4, wherein the antimicrobial sheet is used as a food packaging material selected from among fruits, vegetables, grain packaging materials, and plant spore packaging materials. In the method using the antimicrobial sheet of claim 4, A method of using an antibacterial sheet, wherein the antimicrobial sheet of claim 4 is used for accessories of a clean room or home appliance.

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