WO2023163290A1 - Door hardware having virus and bacteria killing function and method for manufacturing same - Google Patents

Door hardware having virus and bacteria killing function and method for manufacturing same Download PDF

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Publication number
WO2023163290A1
WO2023163290A1 PCT/KR2022/009879 KR2022009879W WO2023163290A1 WO 2023163290 A1 WO2023163290 A1 WO 2023163290A1 KR 2022009879 W KR2022009879 W KR 2022009879W WO 2023163290 A1 WO2023163290 A1 WO 2023163290A1
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WO
WIPO (PCT)
Prior art keywords
door
virus
door hardware
metal
coating layer
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PCT/KR2022/009879
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French (fr)
Korean (ko)
Inventor
김순태
황대진
Original Assignee
주식회사 현대정밀
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Publication of WO2023163290A1 publication Critical patent/WO2023163290A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/32—Phosphorus-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K9/00—Use of pretreated ingredients
    • C08K9/08—Ingredients agglomerated by treatment with a binding agent
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
    • C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
    • C09D127/12—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C09D127/16—Homopolymers or copolymers of vinylidene fluoride
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/65—Additives macromolecular
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B1/00—Knobs or handles for wings; Knobs, handles, or press buttons for locks or latches on wings

Definitions

  • the present invention relates to door hardware having a virus and/or bacterial killing function including a coating layer containing a fluororesin and a manufacturing method thereof.
  • Coronavirus disease (COVID-19), which emerged at the end of 2019 and is a global pandemic, is an infectious disease caused by the SARS-CoV-2 virus.
  • coronavirus can be transmitted as small particles from the mouth or nose when an infected person coughs, sneezes, talks, sings, or breathes, and the particles take various forms from large droplets to small aerosols.
  • Korean Patent Publication No. 2021-0143679 is an antiviral coating composition using an antiviral component including an antiviral fusion protein, which targets a protein that binds to a receptor of a host cell and disables, destroys, or destroys the virus membrane.
  • the technology introduced into the coating composition is disclosed.
  • the antiviral coating composition since it is coated on the surface to be coated using the electrospinning method, it is difficult to use it by coating it on parts with frequent friction such as doorknobs or elevator buttons, and even if used, the coating layer is easily damaged or Contamination may be a problem.
  • the resin coating composition is composed of a liquid or semi-solid state having viscosity in the composition state, and can be used by applying or attaching to the coated surface.
  • the coated surface is composed of a curved surface
  • the formed coating layer There may be a problem that the rigidity changes according to external temperature change or humidity change, or it can be easily detached from the coated surface by repeating expansion / contraction.
  • An object of the present invention is to provide door hardware including a coating layer having excellent long-term durability without being significantly deformed in shape and color even in external weather changes such as extreme temperature change, humidity change, and sunlight change.
  • An object of the present invention is to provide door hardware having a coating layer having low water permeability and excellent corrosion resistance and chemical resistance.
  • An object of the present invention is to provide door hardware having a coating layer that maintains excellent adhesion not only to a flat surface but also to a curved surface to be coated.
  • Another object of the present invention is to provide door hardware with excellent virus killing function and bacteria killing function.
  • Door hardware according to the present invention for solving the above problems is door hardware having a virus and / or bacterial killing function
  • HA hydroxyapatite
  • the bonding filler has a structure in which a carnauba wax coating layer having a thickness of 0.1 to 0.5 ⁇ m (micrometers) is formed on the surface of polyvinylidene fluoride spherical particles having an average diameter of 1 to 3 ⁇ m (micrometers).
  • the coating composition may include 0.1 to 3% by weight of the colored pigment and the white pigment based on the total weight of the coating composition.
  • the door hardware has a function of killing Corona-19 virus (SARS-CoV-2 virus), and the door hardware has Escherichia coli , Staphylococcus aureus , and Pseudomonas aeruginosa ) It may have a virus and bacterial killing function having a killing function for one or more selected from the group consisting of.
  • SARS-CoV-2 virus Corona-19 virus
  • Escherichia coli Staphylococcus aureus
  • It may have a virus and bacterial killing function having a killing function for one or more selected from the group consisting of.
  • the door hardware is a door knob, a door hinge, a door lock, a mortise lock, a cup handle, a tubular lever lock lock), Integral lever lock, Cylinder lock, Dead lock, Door closer, Key, Key cylinder, Panic device ), one selected from the group consisting of a recessed pull, a sliding lock, a door stop, a pull handle, an electronic lock, and a digital door lock can be
  • step (c) applying a coating composition to the surface of the molded body made of metal after step (b);
  • step (d) heating and drying the molded body made of metal after step (c) at a temperature of 210 to 230° C. for 40 to 50 minutes;
  • Polyvinylidene fluoride spherical particles having an average diameter of 1 to 3 ⁇ m (micrometers) are mixed with carnauba wax heated at a temperature of 70 to 78 ° C. for 10 to 20 minutes and mixed with a mixer at a speed of 50 to 100 rpm mixing step,
  • step b) preparing a binding filler by spreading the mixture obtained in step a) on a metal tray to a thickness of 2 to 5 mm and then drying with wind at a temperature of 5 to 10 ° C;
  • PVDF polyvinylidene fluoride
  • HA hydroxyapatite
  • the shape and color are not significantly deformed even in external weather changes such as extreme temperature change, humidity change, and sunlight change, and weather resistance, abrasion resistance, and color stability are excellently maintained for a long period of time.
  • the present invention has excellent corrosion resistance and chemical resistance.
  • Door hardware according to the present invention has an effect of maintaining excellent adhesion of the coating layer even if it has a curved shape as well as a flat shape.
  • the door hardware according to the present invention has an excellent effect of killing viruses and/or killing bacteria.
  • FIG. 1 is a photograph showing an example of a door hardware product having a function of killing viruses and bacteria according to the present invention.
  • FIG. 2 is a virus killing test report on door hardware (clear coating) according to the present invention.
  • FIG. 3 is a virus death test report on door hardware (colored paint) according to the present invention.
  • 5 is a bacterial death test report on door hardware (colored paint) according to the present invention.
  • FIG. 6 is a photograph showing a manufacturing process of door hardware according to the present invention.
  • “Preferred” or “preferably” as used herein refers to embodiments of the present invention that have particular advantages under particular conditions. However, other embodiments may also be preferred under the same or different conditions. Also, the presence of one or more preferred embodiments does not imply that other embodiments are not useful, nor does it exclude other embodiments from being within the scope of the present invention.
  • the present invention is door hardware having a virus and bacteria killing function, comprising a molded body made of metal and a coating layer formed on the surface of the molded body made of metal, wherein the coating layer is polyvinylidene fluoride (PVDF) powder of 50 to 65 weight %, 3 to 7% by weight of hydroxyapatite (HA), 1 to 5% by weight of an associative filler, and the remainder of the solvent, wherein the associative filler is 1 to 3 ⁇ m (micrometer )
  • PVDF polyvinylidene fluoride
  • HA hydroxyapatite
  • an associative filler is 1 to 3 ⁇ m (micrometer )
  • It relates to door hardware having a function of killing viruses and bacteria, in which a carnauba wax coating layer having a thickness of 0.1 to 0.5 ⁇ m (micrometers) is formed on the surface of spherical polyvinylidene fluoride particles having a diameter of .
  • Door hardware according to the present invention is a term that collectively refers to a number of items such as door handles and door hinges constituting a door (door).
  • Door hardware has a configuration including a molded body made of metal and a coating layer formed on the surface of the molded body, the coating layer comprising 50 to 65% by weight of polyvinylidenefluoride (PVDF) powder, hydroxyapatite (Hydroxyapatite, HA ) 3 to 7% by weight, 1 to 5% by weight of an associative filler, and the balance of the solvent, and the associative filler is a spherical polyvinylidene fluoride having a diameter of 1 to 3 ⁇ m (micrometers) A carnauba wax coating layer having a thickness of 0.1 to 0.5 ⁇ m (micrometer) may be formed on the surface of the particle.
  • PVDF polyvinylidenefluoride
  • HA hydroxyapatite
  • an associative filler is a spherical polyvinylidene fluoride having a diameter of 1 to 3 ⁇ m (micrometers)
  • the coating layer formed on the surface of the molded body may be formed of a coating film having a thickness of 20 to 30 ⁇ m (micrometers).
  • the door hardware according to the present invention has a virus and/or bacteria killing function, and preferably, may have both a virus killing function and a bacteria killing function.
  • the virus killing function may be a killing function for corona virus, and more specifically, it may have a killing function for corona-19 virus (SARS-CoV-2 virus).
  • FIG. 2 is a virus killing test report on door hardware (clear coating) according to the present invention
  • FIG. 3 is a virus killing test report on door hardware (colored paint) according to the present invention.
  • the door hardware according to the present invention has a corona virus killing function regardless of whether the coating layer is clear coated/colored.
  • the door hardware according to the present invention can exhibit a virus killing effect of 99.988% or more when contacted with a virus for 30 minutes or more, and preferably a virus killing effect of 99.99% or more when contacted for 60 minutes or more.
  • the bacterial killing function may have a killing function for one or more selected from the group consisting of Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa .
  • Escherichia coli Escherichia coli
  • Staphylococcus aureus Staphylococcus aureus
  • Pseudomonas aeruginosa Pseudomonas aeruginosa
  • Escherichia coli Escherichia coli
  • Staphylococcus aureus Staphylococcus aureus
  • Pseudomonas aeruginosa Pseudomonas aeruginosa
  • Pseudomonas aeruginosa may have a killing function for all.
  • FIG. 4 is a bacterial killing test report on door hardware (clear coating) according to the present invention
  • FIG. 5 is a bacterial killing test report on door hardware (colored paint) according to the present invention.
  • the door hardware according to the present invention has a function of killing bacteria against Escherichia coli , Staphylococcus aureus , and Pseudomonas aeruginosa .
  • the door hardware according to the present invention has a function of killing bacteria by showing a reduction rate of 99.9% or more with respect to the bacteria.
  • the door hardware according to the present invention may be any part applied to a door, and is not necessarily limited to indoor interiors and architectural doors, and door hardware of household appliances such as refrigerators and washing machines and doors applied to vehicles. It may include all of the items constituting various types of doors, such as hardware. Specifically, it may be an article made of a metal material.
  • the door hardware includes a coating layer on the surface of a molded body made of metal, and the molded body made of metal is manufactured in the same shape as the door hardware and formed by applying a coating composition to the surface to form a coating layer.
  • the molded body made of metal can form a coating layer without additional processing after manufacturing a shape of a metal material to suit the shape of a desired part, and if necessary, after manufacturing a shape of a metal material, plating and anodizing on the surface Further processing, such as processing, can be performed.
  • a clear coating layer or a colored coating layer may be formed on the surface of the molded body made of a metal material.
  • FIG. 1 is a photograph showing an example of a door hardware product having a virus and bacteria killing function according to the present invention, and is a photograph showing an example that can be implemented as the door hardware of the present invention.
  • FIG. 1 shows one embodiment of the present invention, and the scope of the present invention is not limited to the product of FIG. 1 or the product on the photo.
  • the door hardware includes a door knob, a door hinge, a door lock, a mortise lock, a cup handle, and a tubular lever lock. lock), Integral lever lock, Cylinder lock, Dead lock, Door closer, Key, Key cylinder, Panic device ), a recessed pull, a sliding lock, a door stop, a pull handle, an electronic lock, and a digital door lock.
  • a door knob a door knob
  • a door hinge a door lock
  • a door lock a mortise lock
  • a cup handle and a tubular lever lock. lock
  • Integral lever lock Integral lever lock
  • Cylinder lock Cylinder lock
  • Dead lock Dead lock
  • Door closer Key
  • Key cylinder Key cylinder
  • Panic device Panic device
  • a recessed pull a sliding lock
  • a door stop a pull handle
  • an electronic lock a digital door lock.
  • the integral lever lock it may be called a name such as a vestibule lock
  • a name such as an auxiliary lock
  • PVDF Polyvinylidene fluoride
  • Polyvinylidene fluoride is a fluorine-based polymeric material, which has good processability due to its crystallinity and thermoplasticity, and is known as a material with excellent physical properties showing chemical resistance, high mechanical strength, and piezoelectric properties at a temperature below 150 °C.
  • PVDF has excellent mechanical strength, has characteristics that endure well even at relatively high temperatures, and has the advantage of not being deformed, destroyed, or damaged even in external environmental changes, that is, changes in climate or weather.
  • PVDF is widely known as a polymer material with high dimensional stability and excellent weather resistance, abrasion resistance, and corrosion resistance. long-term durability that can be maintained for a long time without
  • PVDF is a hydrophobic material, it can effectively prevent water permeation from the top of the coating layer to the surface to be coated, so it has excellent corrosion resistance and chemical resistance.
  • PVDF is mixed with a solvent in the form of a powder to prepare a coating composition, applied to the coated surface to be coated, and then heated and dried to form a coating layer.
  • PVDF since it has hydrophobicity, water penetration and water retention are low, and adhesion can be maintained with almost no deformation.
  • PVDF powder may be added in an amount of 50 to 65% by weight based on the total weight of the coating composition.
  • the viscosity of the coating composition is high, resulting in reduced workability and reduced adhesion of the coating layer.
  • the wear resistance of the formed coating layer is reduced. , there is a problem that the hardness after being formed as a coating layer is greatly reduced.
  • the average diameter of the powder constituting the PVDF powder is 2 to 4 ⁇ m (micrometers). If the size is larger than the above size, a portion that is not cured during heating and drying occurs, resulting in poor hardness, wear resistance and impact resistance, and if the size is smaller than the above size, the viscosity of the coating composition increases, resulting in poor workability. .
  • hydroxyapatite is a naturally occurring mineral with the formula Ca 5 (PO 4 ) 3 (OH), but is usually used to indicate that the crystal unit cell consists of two entities. It is represented by Ca 10 (PO 4 ) 6 (OH) 2 .
  • Hydroxyapatite meets water to form OH - (hydroxide anion) radicals, causing cell membranes of bacteria or protein membranes of viruses, and genetic destruction to have a killing function.
  • Hydroxyapatite may be added in an amount of 3 to 7% by weight based on the total weight of the coating composition.
  • the toughness of the formed coating layer deteriorates and weather resistance deteriorates, and when added in a smaller amount than the above content, the function of killing viruses and bacteria deteriorates.
  • the present invention is characterized by using hydroxyapatite to form a coating layer using environmentally friendly raw materials harmless to the human body.
  • the bonding filler is a composite in which the surface of PVDF spherical particles is coated with carnauba wax. This composite is maintained without any special action in the coating composition state, but in the step of forming a coating layer by applying heat, the carnauba wax coating layer melts and the PVDF spherical particles inside are released to fill the empty space formed by curing the coating composition to make it hard. Helps form the coating layer of the structure.
  • the thickness of the coating layer formed of the coating composition becomes thick, which delays drying of the coating layer and deteriorates the quality of the coating layer.
  • the coating layer is difficult to have uniform adhesion because it is not uniformly dispersed in the coating composition.
  • the bonding filler as the PVDF spherical particles encapsulated in the bonding filler begin to melt and harden later than the PVDF dispersed and dissolved in the coating composition, the adhesion area on the surface of the material to be coated is wider, and in the curing process There is an effect of improving the adhesion by preventing the distance from the coating material from slightly widening due to the shrinkage of the coating layer and making the distance to the coating material more closely.
  • such a property of improving adhesion is conspicuous when coated on a metal surface, and has the effect of further improving the adhesion of the coating layer on the surface of a metal such as aluminum, stainless steel, or zinc alloy.
  • the binding filler may be included in an amount of 1 to 5% by weight based on the total weight of the coating composition.
  • the average diameter of the spherical particles of the PVDF is 1 to 3 ⁇ m (micrometer) for preparing the bonding filler. If the size is larger than the above size, the bonding filler cannot sufficiently penetrate into the empty space between the PVDF powders dispersed in the coating composition during the heating and drying process, resulting in a decrease in the hardness of the coating layer. In, there is a difficult problem in the manufacture of the bonding filler itself.
  • the carnauba wax coating layer formed on the surface of the polyvinylidene fluoride preferably has a thickness of 0.1 to 0.5 ⁇ m (micrometer).
  • a thickness of 0.1 to 0.5 ⁇ m (micrometer) When it is thicker than the above thickness, as the particle size in the coating composition increases, uniform application is difficult, and when it is thinner than the above thickness, it is difficult to form a coating layer having a uniform thickness.
  • the coating agent composition for forming the coating layer of door hardware according to the present invention is a solvent and a dispersion medium, and any solvent that can be used can be used without particular limitation.
  • the composition for forming the coating layer of door hardware that users frequently contact since it is included in the composition for forming the coating layer of door hardware that users frequently contact, it can be used if it is manufactured using a solvent such as water or alcohol that is not harmful to the human body, and can be used as an eco-friendly solvent in the field of paint and painting. Anything that can be used is not limited and can be used.
  • the coating composition forming the coating layer of the door hardware according to the present invention may further include a colored pigment or a white pigment.
  • PVDF Since PVDF is transparent by itself, it may be necessary to add a pigment to impart aesthetics to the coating layer or for functional reasons, so it can be appropriately added.
  • a coating layer having a color When not added, it can be used as a transparent coating agent, and when colored pigments and white pigments are added, a coating layer having a color can be formed.
  • the colored pigment and the white pigment may be added in an amount of 0.1 to 3% by weight based on the total weight of the coating composition.
  • the viscosity of the coating composition increases, making application difficult, and when the pigment is added in a smaller amount than the above content, there is a problem in that the desired color is not sufficiently developed.
  • FIG. 6 is a photograph showing a manufacturing process of the door hardware according to the present invention. With reference to this, the manufacturing process of the door hardware is briefly shown as follows.
  • step (c) applying a coating composition to the surface of the molded body made of metal after step (b);
  • step (d) heating and drying the molded body made of metal after step (c) at a temperature of 210 to 230° C. for 40 to 50 minutes;
  • Polyvinylidene fluoride spherical particles having an average diameter of 1 to 3 ⁇ m (micrometers) are mixed with carnauba wax heated at a temperature of 70 to 78 ° C for 10 to 20 minutes and mixed with a mixer at a speed of 50 to 100 rpm mixing step,
  • step b) preparing a binding filler by spreading the mixture obtained in step a) on a metal tray to a thickness of 2 to 5 mm and then drying with wind at a temperature of 5 to 10 ° C;
  • PVDF polyvinylidene fluoride
  • HA hydroxyapatite
  • the step (a) is a step of manufacturing a molded body made of a metal material, and the molded body made of a metal material is manufactured into a shape suitable for a desired door hardware product. Any method is not limited as long as it is a method of forming into a shape of a metal material, and, for example, a molded body of a metal material may be manufactured by casting (casting).
  • the surface of the molded body made of metal may further undergo a polishing process if necessary. Through the polishing process, the surface of the molded body made of metal is processed into a smooth surface by removing non-uniform irregularities, and the surface contact texture of the finally completed door hardware can be improved.
  • step (a) The surface of the molded body made of metal after step (a) is ultrasonically cleaned, then cleaned with air, and then subjected to step (b) of mounting on a painting jig.
  • the ultrasonic cleaning process may be performed by washing for 3 minutes at a temperature of 40 °C using an ultrasonic device.
  • the air cleaning step may be performed by washing the surface of the molded body made of metal with a volatile cleaning solvent and then removing dust and foreign substances with an antistatic gun.
  • the volatile cleaning solvent may be used without particular limitation as long as it can be used in the field of metal painting.
  • the molded body made of the metal is mounted on a painting jig.
  • a dedicated painting jig that is advantageous in maintaining the spray angle while being evenly and uniformly applied at a constant thickness without an area where the coating composition is not applied in a state in which the molded body made of metal is mounted on the painting jig. do.
  • step (c) of applying a coating composition to the surface of the molded body made of metal is performed.
  • step (c) is for forming a coating layer constituting the door hardware of the present invention described above, and a manufacturing method thereof will be described later.
  • the process of applying the coating composition may be preferably performed by a physical coating method.
  • a physical coating method since there is a concern that deformation of the coating composition, in particular, deterioration of the virus/bacterial killing function, it is preferable to perform the physical coating method.
  • step (c) After the step (c), a step of heating and drying the molded body made of metal at a temperature of 210 to 230 ° C. for 40 to 50 minutes is performed.
  • step (c) is prepared in the following way.
  • Polyvinylidene fluoride spherical particles having a diameter of 1 to 3 ⁇ m (micrometers) are mixed with carnauba wax heated at a temperature of 70 to 78 ° C. for 10 to 20 minutes and mixed with a mixer at a speed of 50 to 100 rpm step;
  • step b) preparing a bonding filler by spreading the mixture obtained in step a) on a metal tray to a thickness of 2 to 5 mm and then drying it with wind at a temperature of 5 to 10 ° C;
  • PVDF polyvinylidene fluoride
  • HA hydroxyapatite
  • Step a) is a step of preparing a bonding filler, and PVDF spherical particles are put into semi-molten carnauba wax and coated, and in step b), it is prepared by spreading it on a metal tray and drying it with low-temperature wind.
  • the PVDF particles dried in the step b) are dried in a state spread on a tray to become a slightly hardened block-like form, which can be lightly crushed to obtain a powder in the form of coated particles.
  • the carnauba wax In order to make the carnauba wax in a semi-molten state, it is heated for 10 to 20 minutes at a temperature of 70 to 78 ° C. When heated to a temperature higher than this, the carnauba wax turns into a liquid phase, making it difficult to form a wax coating layer on the surface of each PVDF spherical particle. It is difficult to mix uniformly enough to form.
  • the heating time is shorter than the above time, there is a problem that it is not sufficiently melted in a semi-melted state, and if it is longer than the above time, the amount of liquid carnauba wax increases and the wax coating layer is formed thickly.
  • a metal tray In the step of drying on a metal tray, a metal tray is used because heat can be easily lost in the metal tray and separation of the dried bonding filler is easy.
  • the mixture is spread to a thickness of 2-5 mm and dried with wind at a temperature of 5 to 10 ° C. If it is thicker than the above thickness, there may be a problem that the bonding filler particles are not separated individually but agglomerated, and If it is thin, there is a problem that it becomes difficult to separate from the metal tray surface.
  • the temperature is preferably a low temperature lower than room temperature as described above, in order to prevent the carnauba wax layers from sticking to each other and from being formed as one lump.
  • the bonding filler prepared in this way is 1 to 5% by weight by adding 50 to 65% by weight of polyvinylidenefluoride (PVDF) powder and 3 to 7% by weight of hydroxyapatite (HA) in the remaining solvent. By mixing, the coating composition is prepared.
  • PVDF polyvinylidenefluoride
  • HA hydroxyapatite
  • the door hardware according to the present invention may include a clear coating layer, and may include a colored coating layer by using a colored coating composition containing a colored pigment and a white pigment in a predetermined amount. .
  • the door hardware in which the coating layer is formed with the colored coating agent composition further including the colored pigment and the white pigment may first perform a step of applying a fluorine-based primer before forming the coating layer.
  • a process of applying and drying a fluorine-based primer may be additionally performed.
  • the fluorine-based primer is used by mixing the clear coating coating composition in which the color pigment and the white pigment are not mixed with an organic solvent in a weight ratio of 100: 30 to 40, and drying it at a temperature of 20 to 40 ° C. for 15 minutes. go through the process of
  • the fluorine-based primer may be applied to the surface of the molded body made of metal after step (b) to form a coating film of 10 to 15 ⁇ m (micrometers).
  • the fluorine-based primer coating film is not sufficiently dried during formation of the coating layer, and thus the quality at the time of forming the coating layer may be deteriorated. And, there is a problem of making the clear coating layer on the surface of the door hardware including the clear coating layer cloudy.
  • 200 g of polyvinylidene fluoride prepared as spherical particles having an average diameter of 2 ⁇ m was prepared, and carnauba wax was placed in a pot maintained at a temperature of 75 to 76° C. and heated for 12 minutes. While the heated carnauba wax was not completely melted but half-melted, 200 g of prepared spherical polyvinylidene fluoride particles were all added and thoroughly mixed using a mixer at a speed of 60 rpm.
  • the sufficiently mixed mixture was spread thinly on a metal tray to a thickness of about 2 mm and placed in a closed dryer, and wind was provided while maintaining an internal temperature of 5 to 10 ° C. It was lightly crushed in a dried state to prepare a binder filler in a particulate state.
  • the obtained bonding filler was randomly taken at different positions 10 times, and the thickness of the wax coating layer on the surface was measured using SEM, and it was found to have an average thickness of 0.2 to 0.4 ⁇ m.
  • KYNAR® 500 polyvinylidene fluoride
  • Example 1 Using the coating compositions of Example 1 and Comparative Examples, a doorknob including a clear coating layer was prepared as follows.
  • each coating agent composition prepared in Example 1 and Comparative Example was mixed with an organic solvent (acetone) in a weight ratio of 100:30 to prepare a fluorine-based primer composition, applied to the surface of each doorknob, and then left for 1 minute. did
  • each coating composition not mixed with an organic solvent was applied to the surface of the primer coating film, and heated and dried for 40 minutes while maintaining a temperature of 210 to 230 ° C.
  • Example 2 The coating composition of Example 2 was applied to the surface of the molded body prepared in 1) above, and heated and dried for 40 minutes while maintaining a temperature of 210 to 230 ° C.
  • the door hardware including the clear coating layer manufactured using Example 1 and Comparative Example was evaluated, and the average value of the results (the decimal point was rounded down) was described.
  • Example 2 evaluation was performed on the door hardware of Example 2, and the average value of the results (the decimal point was rounded down) was described.
  • the size of the PVDF powder is too small, it becomes difficult to utilize it as a coating agent due to an increase in the viscosity of the coating composition. That is, it is difficult to apply to a curved surface or any surface to be coated, and workability is poor. If the size of the PVDF powder is too large, it is not hardened sufficiently during the heating and drying process, and thus the hardness and impact properties of the coating layer are reduced.
  • Comparative Example 5 in which a small amount of PVDF powder was added, compared to Examples, it can be seen that hardness and impact properties are greatly reduced. In particular, since the abrasion resistance is greatly reduced, it can be seen that the long-term durability is lowered. When an excessive amount of PVDF powder is added, it can be confirmed that workability is deteriorated, adhesion is deteriorated, and hardness is also low, as the coating agent composition has a high viscosity.
  • Comparative Example 7 there is no significant difference in physical properties of the coating layer itself from those of the examples, but there is a problem in that there is no function to kill viruses and bacteria because hydroxyapatite is not added.
  • Comparative Example 8 it can be confirmed that there is a problem of poor weather resistance compared to other physical properties.
  • FIG. 2 is a virus killing test report on door hardware (clear coating) according to the present invention
  • FIG. 3 is a virus killing test report on door hardware (colored paint) according to the present invention.
  • FIG. 2 was performed after the coating agent composition of Example 1 was coated on the surface of the steel sheet
  • FIG. 3 was performed after the coating agent composition of Example 2 was coated on the surface of the steel sheet.
  • FIGS. 2 and 3 it can be confirmed that there is an effect of killing the corona-19 virus (SARS-CoV-2 virus) on the surface of the coating layer formed using the coating composition of Examples 1 and 2.
  • SARS-CoV-2 virus corona-19 virus
  • the virus reduction rate a reduction rate of 99.988% or more was confirmed after 30 minutes, and a reduction rate of 99.99% or more was confirmed after 60 minutes.
  • FIG. 4 is a bacterial killing test report on door hardware (clear coating) according to the present invention
  • FIG. 5 is a bacterial killing test report on door hardware (colored paint) according to the present invention.

Abstract

The present invention relates to door hardware having a virus and/or bacteria killing function and a method for manufacturing same, wherein the door hardware having a virus and/or bacteria killing function comprises a molded body made of metal and a coating layer formed on the surface of the molded body made of metal.

Description

바이러스 및 세균 사멸 기능을 갖는 도어하드웨어 및 이의 제조방법Door hardware with virus and bacteria killing function and its manufacturing method
본 출원은 2022년 2월 25일자 대한민국 특허출원 제2022-0025332호를 우선권 주장의 기초로 한 출원으로, 해당 출원의 내용은 본 출원의 내용으로 모두 포함한다.This application is an application based on claiming priority to Republic of Korea Patent Application No. 2022-0025332 dated February 25, 2022, and the contents of the application are all included as the contents of this application.
본 발명은 불소수지를 포함하는 코팅층을 포함하는 바이러스 및/또는 세균 사멸 기능을 갖는 도어하드웨어 및 이의 제조방법에 관한 것이다.The present invention relates to door hardware having a virus and/or bacterial killing function including a coating layer containing a fluororesin and a manufacturing method thereof.
2019년 말에 발병하여 세계적으로 대유행인 코로나바이러스감염증(코로나19)은 SARS-CoV-2 바이러스로 인해 발생하는 감염 질환이다.Coronavirus disease (COVID-19), which emerged at the end of 2019 and is a global pandemic, is an infectious disease caused by the SARS-CoV-2 virus.
코로나19에 감염되면 대부분 경증에서 중증 수준의 증상을 보이며 특별한 치료 없이도 질환으로부터 회복되나, 심각한 질환으로 진행될 수 있으며, 기저질환에 따라 사망에도 이를 수 있어, 백신만이 아니라, 바이러스의 접촉을 방지할 수 있는 생활수칙의 중요성이 크게 대두되고 있다.Most of those infected with COVID-19 show mild to severe symptoms and recover from the disease without special treatment, but it can progress to a serious disease and even death depending on the underlying disease. The importance of the rules of life that can be achieved is greatly emphasized.
특히, 코로나바이러스는 감염자가 기침, 재채기, 말, 노래, 호흡을 할 때 입이나 코에서 작은 입자로 나와 전파될 수 있으며, 입자는 크게는 비말부터 작게는 에어로졸까지 다양한 형태를 띤다. In particular, coronavirus can be transmitted as small particles from the mouth or nose when an infected person coughs, sneezes, talks, sings, or breathes, and the particles take various forms from large droplets to small aerosols.
이로 인해, 코로나19 감염자와 인접한 거리에서 호흡할 때 바이러스를 들이마시게 되거나 오염된 표면에 접촉한 손으로 눈, 코 또는 입을 만질 경우 감염될 수 있는 가능성이 있으므로, 위생적이고 안전한 생활 환경에 대한 요구는 매우 높아지고 있다. As a result, there is a possibility of inhaling the virus when breathing in close proximity to a COVID-19 infected person, or if you touch your eyes, nose, or mouth with your hands in contact with a contaminated surface, so there is a possibility of infection, so there is a need for a sanitary and safe living environment is getting very high.
상술한 바와 같이, 감염자와 직접 접촉하지 않고도 감염자가 지나간 자리, 접촉한 물건 등을 통해 감염될 가능성이 있으므로, 다수가 이용하는 공공시설에서의 바이러스 전파를 방지하기 위해서는, 바이러스가 도달한 물체의 표면에서 즉시 바이러스를 사멸시켜 2차 접촉에도 바이러스의 전파를 방지하는 방법이 고려되고 있다. As described above, since there is a possibility of infection through a place where an infected person has passed or an object that has been in contact without direct contact with the infected person, in order to prevent the spread of the virus in public facilities used by a large number of people, A method of immediately killing the virus and preventing transmission of the virus even through secondary contact is being considered.
대한민국 공개특허 제2021-0143679호는 항바이러스 융합단백질을 포함하는 항바이러스 성분을 이용한 항바이러스 코팅조성물로서, 숙주세포의 수용체와 결합하는 단백질을 타겟하여 단백질을 불능화, 파괴 또는 바이러스 막을 파괴하는 항바이러스 코팅조성물에 도입한 기술을 개시하고 있다.Korean Patent Publication No. 2021-0143679 is an antiviral coating composition using an antiviral component including an antiviral fusion protein, which targets a protein that binds to a receptor of a host cell and disables, destroys, or destroys the virus membrane. The technology introduced into the coating composition is disclosed.
그러나, 항바이러스 모티프와 같은 단백질 계열의 항바이러스 성분을 사용하는 경우, 고온의 온도나 반복적인 큰 온도 차의 외부변화 또는 과다한 수분이나 반복적인 수분공급과 건조과정을 통해 항바이러스 성능을 갖는 물질 자체의 손상이 발생될 수 있다는 점에서, 항바이러스 성능이 장기간 유지되기 어려운 문제가 있다.However, in the case of using a protein-based antiviral component such as an antiviral motif, the substance itself having antiviral performance through external changes at high temperatures or repetitive large temperature differences, or excessive moisture or repeated moisture supply and drying processes. In that damage may occur, there is a problem in that antiviral performance is difficult to maintain for a long period of time.
더욱이, 상기 항바이러스 코팅조성물의 경우, 전기방사법을 이용하여 피코팅면에 코팅하기 때문에, 문손잡이나, 승강기 버튼 등의 잦은 마찰이 있는 부분에 코팅하여 사용하기 어렵고, 사용하더라도 쉽게 코팅층이 손상되거나 오염되는 문제가 있을 수 있다.Moreover, in the case of the antiviral coating composition, since it is coated on the surface to be coated using the electrospinning method, it is difficult to use it by coating it on parts with frequent friction such as doorknobs or elevator buttons, and even if used, the coating layer is easily damaged or Contamination may be a problem.
한편, 수지 코팅 조성물은 조성물 상태에서는 점도를 갖는 액체, 또는 반고체 상태로 구성되어, 피코팅면에 도포하거나 부착하는 방법으로 사용할 수 있는데, 피코팅면이 굴곡진 면으로 구성되는 경우, 형성된 코팅층이 외부의 온도 변화나, 습도 변화에 따라 강성이 변화하거나, 팽창/수축을 반복하여 피코팅면으로부터 쉽게 탈락할 수 있는 문제가 있을 수 있다.On the other hand, the resin coating composition is composed of a liquid or semi-solid state having viscosity in the composition state, and can be used by applying or attaching to the coated surface. When the coated surface is composed of a curved surface, the formed coating layer There may be a problem that the rigidity changes according to external temperature change or humidity change, or it can be easily detached from the coated surface by repeating expansion / contraction.
따라서, 상술한 바와 같이, 바이러스 사멸 성능이 장기간 유지되면서도, 굴곡진 면에 코팅층을 형성하더라도 변형이나 손상없이 유지될 수 있는 물품에 대한 개발이 필요한 실정이다.Therefore, as described above, there is a need to develop an article capable of maintaining virus killing performance for a long period of time and without deformation or damage even when a coating layer is formed on a curved surface.
본 발명은 극심한 온도 변화, 습도 변화, 일조 변화 등의 외부 기상 변화에도 형태와 색상 등이 크게 변형되지 않고 장기 내구력이 우수한 코팅층을 포함하는 도어하드웨어를 제공하는 것을 목적으로 한다.An object of the present invention is to provide door hardware including a coating layer having excellent long-term durability without being significantly deformed in shape and color even in external weather changes such as extreme temperature change, humidity change, and sunlight change.
본 발명은 낮은 수분 침투력을 가져, 내식성과 내화학성이 우수한 코팅층을 구비한 도어하드웨어를 제공하는 것을 목적으로 한다.An object of the present invention is to provide door hardware having a coating layer having low water permeability and excellent corrosion resistance and chemical resistance.
본 발명은 평평한 형태만이 아니라 굴곡진 형태의 피코팅면에도 우수한 부착력을 유지하는 코팅층을 구비한 도어하드웨어를 제공하는 것을 목적으로 한다.An object of the present invention is to provide door hardware having a coating layer that maintains excellent adhesion not only to a flat surface but also to a curved surface to be coated.
본 발명은 또한, 바이러스 사멸 기능과 세균 사멸 기능이 우수한 도어하드웨어를 제공하는 것을 목적으로 한다.Another object of the present invention is to provide door hardware with excellent virus killing function and bacteria killing function.
상술한 과제를 해결하기 위한 본 발명에 따른 도어하드웨어는 바이러스 및/또는 세균 사멸 기능을 갖는 도어하드웨어로서, Door hardware according to the present invention for solving the above problems is door hardware having a virus and / or bacterial killing function,
금속 재질의 성형체; 및A molded body made of metal; and
상기 금속 재질의 성형체의 표면에 형성된 코팅층;a coating layer formed on the surface of the molded body made of metal;
을 포함하고,including,
상기 코팅층은 불화 폴리비닐리덴(PVDF, Polyvinylidenefluoride) 분말 50 내지 65 중량%, 하이드록시아파타이트(Hydroxyapatite, HA) 3 내지 7 중량%, 결합성 충진재 1 내지 5 중량% 및 잔부의 용매를 포함하는 코팅제 조성물로 형성되며, The coating layer is a coating composition comprising 50 to 65% by weight of polyvinylidenefluoride (PVDF) powder, 3 to 7% by weight of hydroxyapatite (HA), 1 to 5% by weight of a binding filler and the remainder solvent is formed by
상기 결합성 충진재는, 1 내지 3 ㎛(마이크로미터)의 평균 직경을 갖는 불화 폴리비닐리덴 구형 입자 표면에 0.1 내지 0.5 ㎛(마이크로미터) 두께의 카나우바 왁스 코팅층이 형성된 구성을 갖는다.The bonding filler has a structure in which a carnauba wax coating layer having a thickness of 0.1 to 0.5 μm (micrometers) is formed on the surface of polyvinylidene fluoride spherical particles having an average diameter of 1 to 3 μm (micrometers).
본 발명에 있어서, 상기 코팅제 조성물은 상기 코팅제 조성물의 전체 중량을 기준으로 상기 유색안료 및 백색안료를 0.1 내지 3 중량%로 포함할 수 있다.In the present invention, the coating composition may include 0.1 to 3% by weight of the colored pigment and the white pigment based on the total weight of the coating composition.
본 발명에 있어서, 상기 도어하드웨어는 코로나-19 바이러스(SARS-CoV-2 바이러스)에 대한 사멸 기능을 가지며, 상기 도어하드웨어는 대장균(Escherichia coli), 황색포도상구균(Staphylococcus aureus) 및 녹농균(Pseudomonas aeruginosa)으로 이루어진 군에서 선택된 하나 이상에 대한 사멸 기능을 갖는 바이러스 및 세균 사멸 기능을 가질 수 있다.In the present invention, the door hardware has a function of killing Corona-19 virus (SARS-CoV-2 virus), and the door hardware has Escherichia coli , Staphylococcus aureus , and Pseudomonas aeruginosa ) It may have a virus and bacterial killing function having a killing function for one or more selected from the group consisting of.
본 발명에 있어서, 상기 도어하드웨어는 손잡이(Door knob), 도어 힌지(Door hinge), 도어 록(Door lock), 모티스 록(Mortise lock), 컵핸들(Cup handle), 튜블러 레버 록(Tublar lever lock), 인테그랄 레버 록(Integral lever lock), 실린더 록(Cylinder lock), 데드 록(Dead lock), 도어 클로저(Door closer), 키(Key), 키 실린더(Key cylinder), 패닉 디바이스(Panic device), 오목 손잡이(Recessed pull), 슬라이딩 록(Sliding lock), 도어 스토퍼(Door stop), 풀 핸들 (Pull handle), 전자 도어록 (Electronic lock), 디지털 도어록(Digital door lock)으로 이루어진 군에서 선택된 하나일 수 있다.In the present invention, the door hardware is a door knob, a door hinge, a door lock, a mortise lock, a cup handle, a tubular lever lock lock), Integral lever lock, Cylinder lock, Dead lock, Door closer, Key, Key cylinder, Panic device ), one selected from the group consisting of a recessed pull, a sliding lock, a door stop, a pull handle, an electronic lock, and a digital door lock can be
본 발명에 따른 도어하드웨어의 제조방법은,The manufacturing method of the door hardware according to the present invention,
(a) 금속 재질의 성형체를 제조하는 단계;(a) manufacturing a molded body made of metal;
(b) 상기 금속 재질의 성형체 표면을 초음파 세척한 후, 에어(Air) 세척한 다음 도장용 지그에 장착하는 단계;(b) cleaning the surface of the molded body made of metal with ultrasonic waves, then cleaning it with air, and then mounting it on a painting jig;
(c) 상기 (b) 단계를 거친 금속 재질의 성형체 표면에 코팅제 조성물을 도포하는 단계; (c) applying a coating composition to the surface of the molded body made of metal after step (b);
(d) 상기 (c) 단계를 거친 금속 재질의 성형체를 210 내지 230℃의 온도에서 40 내지 50분간 가열건조하는 단계;(d) heating and drying the molded body made of metal after step (c) at a temperature of 210 to 230° C. for 40 to 50 minutes;
를 포함하고,including,
상기 (c) 단계의 상기 코팅제 조성물은,The coating composition of step (c),
ㄱ) 1 내지 3㎛(마이크로미터)의 평균 직경을 갖는 불화 폴리비닐리덴 구형 입자를 70 내지 78℃의 온도로 10 내지 20분간 가열한 카나우바 왁스와 혼합하여 50 내지 100 rpm의 속도의 믹서로 섞는 단계,a) Polyvinylidene fluoride spherical particles having an average diameter of 1 to 3 μm (micrometers) are mixed with carnauba wax heated at a temperature of 70 to 78 ° C. for 10 to 20 minutes and mixed with a mixer at a speed of 50 to 100 rpm mixing step,
ㄴ) 상기 ㄱ) 단계에서 얻어진 혼합물을 금속 트레이에 2 내지 5 mm의 두께로 펼친 후, 5 내지 10℃의 온도의 바람으로 건조시켜 결합성 충진재를 제조하는 단계 및b) preparing a binding filler by spreading the mixture obtained in step a) on a metal tray to a thickness of 2 to 5 mm and then drying with wind at a temperature of 5 to 10 ° C; and
ㄷ) 불화 폴리비닐리덴(PVDF, Polyvinylidenefluoride) 분말 50 내지 65 중량%, 하이드록시아파타이트(Hydroxyapatite, HA) 3 내지 7 중량% 및 상기 결합성 충진재 1 내지 5 중량%를 잔부의 용매에 넣어 혼합하여 코팅제 조성물을 제조하는 단계를 거쳐 제조한다.c) 50 to 65% by weight of polyvinylidene fluoride (PVDF) powder, 3 to 7% by weight of hydroxyapatite (HA), and 1 to 5% by weight of the bonding filler are mixed in the remaining solvent to form a coating agent It is prepared through the steps of preparing the composition.
본 발명에 따르면, 극심한 온도 변화, 습도 변화, 일조 변화 등의 외부 기상 변화에도 형태와 색상 등이 크게 변형되지 않고 내후성, 내마모성, 색안정성이 장기간 우수하게 유지되는 효과를 갖는다.According to the present invention, the shape and color are not significantly deformed even in external weather changes such as extreme temperature change, humidity change, and sunlight change, and weather resistance, abrasion resistance, and color stability are excellently maintained for a long period of time.
본 발명은 기존의 도어하드웨어와 대비하여, 내식성과 내화학성이 우수한 효과를 가진다.Compared to conventional door hardware, the present invention has excellent corrosion resistance and chemical resistance.
본 발명에 따른 도어하드웨어는 평평한 형태만이 아니라 굴곡진 형태를 가져도 코팅층이 우수한 부착력을 유지하는 효과를 가진다.Door hardware according to the present invention has an effect of maintaining excellent adhesion of the coating layer even if it has a curved shape as well as a flat shape.
본 발명에 따른 도어하드웨어는 바이러스 사멸 기능 및/또는 세균 사멸 기능이 우수한 효과를 가진다.The door hardware according to the present invention has an excellent effect of killing viruses and/or killing bacteria.
도 1은 본 발명에 따른 바이러스 및 세균 사멸 기능을 갖는 도어하드웨어 제품의 예시를 나타낸 사진이다.1 is a photograph showing an example of a door hardware product having a function of killing viruses and bacteria according to the present invention.
도 2는 본 발명에 따른 도어하드웨어(클리어코팅)에 관한 바이러스 사멸 시험성적서이다.2 is a virus killing test report on door hardware (clear coating) according to the present invention.
도 3은 본 발명에 따른 도어하드웨어(유색 도장)에 관한 바이러스 사멸 시험성적서이다.3 is a virus death test report on door hardware (colored paint) according to the present invention.
도 4는 본 발명에 따른 도어하드웨어(클리어코팅)에 관한 세균 사멸 시험성적서이다.4 is a bacterial death test report for door hardware (clear coating) according to the present invention.
도 5는 본 발명에 따른 도어하드웨어(유색 도장)에 관한 세균 사멸 시험성적서이다.5 is a bacterial death test report on door hardware (colored paint) according to the present invention.
도 6은 본 발명에 따른 도어하드웨어의 제조 공정을 나타낸 사진이다.6 is a photograph showing a manufacturing process of door hardware according to the present invention.
이하, 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자가 용이하게 실시할 수 있도록 본 발명의 각 구성을 보다 상세히 설명하나, 이는 하나의 예시에 불과할 뿐, 본 발명의 권리범위가 다음 내용에 의해 제한되지 아니한다.Hereinafter, each configuration of the present invention will be described in more detail so that those skilled in the art can easily practice it, but this is only one example, and the scope of the present invention is Not limited.
본 발명에 사용된 "바람직한" 또는 "바람직하게는"은 특정 조건에서 특정 장점을 갖는 본 발명의 실시예를 나타낸다. 그러나, 다른 실시예 또한 동일 조건 또는 다른 조건에서 바람직할 수 있다. 또한, 하나 이상의 바람직한 실시예는 다른 실시예가 유용하지 않다는 것을 의미하는 것은 아니며, 본 발명의 범위 내에 있는 다른 실시예를 배제하는 것도 아니다.“Preferred” or “preferably” as used herein refers to embodiments of the present invention that have particular advantages under particular conditions. However, other embodiments may also be preferred under the same or different conditions. Also, the presence of one or more preferred embodiments does not imply that other embodiments are not useful, nor does it exclude other embodiments from being within the scope of the present invention.
본 명세서에 사용된 "포함한다"는 용어는 본 발명에 유용한 재료, 조성물, 장치, 및 방법들을 나열할 때 사용되며 그 나열된 예에 제한되는 것은 아니다.As used herein, the term "comprising" is used when listing materials, compositions, devices, and methods useful in the present invention and is not limited to the examples listed.
본 발명은 바이러스 및 세균 사멸 기능을 갖는 도어하드웨어로서, 금속 재질의 성형체 및 상기 금속 재질의 성형체의 표면에 형성된 코팅층을 포함하고, 상기 코팅층은 불화 폴리비닐리덴(PVDF, Polyvinylidenefluoride) 분말 50 내지 65 중량%, 하이드록시아파타이트(Hydroxyapatite, HA) 3 내지 7 중량%, 결합성 충진재 1 내지 5 중량% 및 잔부의 용매를 포함하는 코팅제 조성물로 형성되며, 상기 결합성 충진재는, 1 내지 3㎛(마이크로미터)의 직경을 갖는 불화 폴리비닐리덴 구형 입자 표면에 0.1 내지 0.5㎛(마이크로미터) 두께의 카나우바 왁스 코팅층이 형성된, 바이러스 및 세균 사멸 기능을 갖는 도어하드웨어에 관한 것이다.The present invention is door hardware having a virus and bacteria killing function, comprising a molded body made of metal and a coating layer formed on the surface of the molded body made of metal, wherein the coating layer is polyvinylidene fluoride (PVDF) powder of 50 to 65 weight %, 3 to 7% by weight of hydroxyapatite (HA), 1 to 5% by weight of an associative filler, and the remainder of the solvent, wherein the associative filler is 1 to 3 μm (micrometer ) It relates to door hardware having a function of killing viruses and bacteria, in which a carnauba wax coating layer having a thickness of 0.1 to 0.5 μm (micrometers) is formed on the surface of spherical polyvinylidene fluoride particles having a diameter of .
이하에서는, 본 발명의 구성을 자세히 설명한다.Hereinafter, the configuration of the present invention will be described in detail.
1) 도어하드웨어(Door Hardware)1) Door Hardware
본 발명에 따른 도어하드웨어는, 도어(문)을 구성하는 문 손잡이, 문 경첩(힌지) 등과 같은 다수의 물품을 통칭하는 용어이다.Door hardware according to the present invention is a term that collectively refers to a number of items such as door handles and door hinges constituting a door (door).
본 발명에 따른 도어하드웨어는 금속 재질의 성형체와 상기 성형체 표면에 형성된 코팅층을 포함한 구성을 가지며, 상기 코팅층은 불화 폴리비닐리덴(PVDF, Polyvinylidenefluoride) 분말 50 내지 65 중량%, 하이드록시아파타이트(Hydroxyapatite, HA) 3 내지 7 중량%, 결합성 충진재 1 내지 5 중량% 및 잔부의 용매를 포함하는 코팅제 조성물로 형성된 것이고, 상기 결합성 충진재는 1 내지 3㎛(마이크로미터)의 직경을 갖는 불화 폴리비닐리덴 구형 입자 표면에 0.1 내지 0.5 ㎛(마이크로미터) 두께의 카나우바 왁스 코팅층이 형성된 것일 수 있다.Door hardware according to the present invention has a configuration including a molded body made of metal and a coating layer formed on the surface of the molded body, the coating layer comprising 50 to 65% by weight of polyvinylidenefluoride (PVDF) powder, hydroxyapatite (Hydroxyapatite, HA ) 3 to 7% by weight, 1 to 5% by weight of an associative filler, and the balance of the solvent, and the associative filler is a spherical polyvinylidene fluoride having a diameter of 1 to 3 μm (micrometers) A carnauba wax coating layer having a thickness of 0.1 to 0.5 μm (micrometer) may be formed on the surface of the particle.
상기 성형체 표면에 형성된 코팅층은 20 내지 30㎛(마이크로미터) 두께의 도막으로 형성될 수 있다.The coating layer formed on the surface of the molded body may be formed of a coating film having a thickness of 20 to 30 μm (micrometers).
상기 두께보다 두꺼운 경우에는, 건조 시간이 과다하게 소요되어, 제조 효율이 저하되는 문제가 있고, 상기 두께보다 얇은 경우에는, 표면에 균일하게 도포되지 못하고, 일부 미도포 영역이 형성될 수 있는 문제가 있다.If it is thicker than the above thickness, an excessive drying time is required, resulting in a decrease in manufacturing efficiency, and if it is thinner than the above thickness, there is a problem that it is not uniformly applied to the surface and some uncoated areas may be formed. there is.
본 발명에 따른 도어하드웨어는 바이러스 및/또는 세균 사멸 기능을 갖는 것으로서, 바람직하게는, 바이러스 사멸 기능과 세균 사멸 기능을 모두 갖는 것일 수 있다.The door hardware according to the present invention has a virus and/or bacteria killing function, and preferably, may have both a virus killing function and a bacteria killing function.
보다 상세하게는, 상기 바이러스 사멸 기능은 코로나 바이러스에 대한 사멸 기능일 수 있고, 더욱 상세하게는, 코로나-19 바이러스(SARS-CoV-2 바이러스)에 대한 사멸 기능을 갖는 것일 수 있다.More specifically, the virus killing function may be a killing function for corona virus, and more specifically, it may have a killing function for corona-19 virus (SARS-CoV-2 virus).
도 2는 본 발명에 따른 도어하드웨어(클리어코팅)에 관한 바이러스 사멸 시험성적서이고, 도 3은 본 발명에 따른 도어하드웨어(유색 도장)에 관한 바이러스 사멸 시험성적서이다.2 is a virus killing test report on door hardware (clear coating) according to the present invention, and FIG. 3 is a virus killing test report on door hardware (colored paint) according to the present invention.
도 2와 도 3을 참고하면, 본 발명에 따른 도어하드웨어는 코팅층의 클리어코팅/유색 여부를 불문하고, 코로나 바이러스에 대한 사멸 기능을 갖는 것을 확인할 수 있다.Referring to FIGS. 2 and 3 , it can be confirmed that the door hardware according to the present invention has a corona virus killing function regardless of whether the coating layer is clear coated/colored.
본 발명에 따른 도어하드웨어는 바이러스와 30분 이상 접촉시킨 경우에 99.988% 이상의 바이러스 사멸 효과를 나타낼 수 있고, 바람직하게는 60분 이상 접촉시킨 경우에 99.99% 이상의 바이러스 사멸 효과를 나타낼 수 있다.The door hardware according to the present invention can exhibit a virus killing effect of 99.988% or more when contacted with a virus for 30 minutes or more, and preferably a virus killing effect of 99.99% or more when contacted for 60 minutes or more.
상기 세균 사멸 기능은 대장균(Escherichia coli), 황색포도상구균(Staphylococcus aureus) 및 녹농균(Pseudomonas aeruginosa)으로 이루어진 군에서 선택된 하나 이상에 대한 사멸 기능을 갖는 것일 수 있다.The bacterial killing function may have a killing function for one or more selected from the group consisting of Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa .
바람직하게는, 대장균(Escherichia coli), 황색포도상구균(Staphylococcus aureus) 및 녹농균(Pseudomonas aeruginosa) 모두에 대한 사멸 기능을 갖는 것일 수 있다.Preferably, Escherichia coli ( Escherichia coli ), Staphylococcus aureus ( Staphylococcus aureus ) and Pseudomonas aeruginosa ( Pseudomonas aeruginosa ) may have a killing function for all.
도 4는 본 발명에 따른 도어하드웨어(클리어코팅)에 관한 세균 사멸 시험성적서이고, 도 5는 본 발명에 따른 도어하드웨어(유색 도장)에 관한 세균 사멸 시험성적서이다.4 is a bacterial killing test report on door hardware (clear coating) according to the present invention, and FIG. 5 is a bacterial killing test report on door hardware (colored paint) according to the present invention.
도 4 및 도 5를 참고하면, 본 발명에 따른 도어하드웨어는 대장균(Escherichia coli), 황색포도상구균(Staphylococcus aureus) 및 녹농균(Pseudomonas aeruginosa)에 대한 세균 사멸 기능을 갖는다.4 and 5, the door hardware according to the present invention has a function of killing bacteria against Escherichia coli , Staphylococcus aureus , and Pseudomonas aeruginosa .
구체적으로, 본 발명에 따른 도어하드웨어는 상기 균에 대하여 99.9% 이상의 감소율을 나타내어 세균 사멸 기능을 가짐을 확인할 수 있다.Specifically, it can be confirmed that the door hardware according to the present invention has a function of killing bacteria by showing a reduction rate of 99.9% or more with respect to the bacteria.
한편, 본 발명에 따른 도어하드웨어는, 문에 적용되는 부품이면 모두 해당될 수 있으며, 반드시, 실내 인테리어, 건축용 문 등에 한정되지 않고, 냉장고, 세탁기 등의 생활가전의 도어하드웨어, 차량에 적용되는 도어하드웨어와 같이 다양한 종류의 도어를 구성하는 물품의 일체를 포함할 수 있다. 구체적으로는, 금속 재질의 물품일 수 있다.On the other hand, the door hardware according to the present invention may be any part applied to a door, and is not necessarily limited to indoor interiors and architectural doors, and door hardware of household appliances such as refrigerators and washing machines and doors applied to vehicles. It may include all of the items constituting various types of doors, such as hardware. Specifically, it may be an article made of a metal material.
상기 도어하드웨어는 금속 재질의 성형체의 표면에 코팅층을 포함하는 것이고, 상기 금속 재질의 성형체는 도어하드웨어의 형상과 동일한 형태로 제조되어, 그 표면에 코팅제 조성물을 도포하여 형성된 코팅층을 형성하여 제조된다.The door hardware includes a coating layer on the surface of a molded body made of metal, and the molded body made of metal is manufactured in the same shape as the door hardware and formed by applying a coating composition to the surface to form a coating layer.
상기 금속 재질의 성형체는 목적하는 부품의 형상에 맞게 금속 재질의 형상을 제조한 후에 추가 처리없이 코팅층을 형성할 수 있고, 필요에 따라 금속 재질의 형상을 제조한 후 표면에 도금, 아노다이징(Anodizing) 처리 등의 추가 처리를 수행할 수 있다.The molded body made of metal can form a coating layer without additional processing after manufacturing a shape of a metal material to suit the shape of a desired part, and if necessary, after manufacturing a shape of a metal material, plating and anodizing on the surface Further processing, such as processing, can be performed.
상기 금속 재질의 성형체 표면에는, 클리어코팅층이나 유색의 도색 코팅층을 형성할 수 있다. A clear coating layer or a colored coating layer may be formed on the surface of the molded body made of a metal material.
도 1은 본 발명에 따른 바이러스 및 세균 사멸 기능을 갖는 도어하드웨어 제품의 예시를 나타낸 사진으로서, 본 발명의 도어하드웨어로 구현될 수 있는 예시를 나타낸 사진이다.1 is a photograph showing an example of a door hardware product having a virus and bacteria killing function according to the present invention, and is a photograph showing an example that can be implemented as the door hardware of the present invention.
다만, 도 1에 도시된 사진은 본 발명의 일 실시예를 나타낸 것으로, 본 발명의 권리범위가 도 1의 물품이나 사진 상의 물품으로 제한되지 않는다.However, the photo shown in FIG. 1 shows one embodiment of the present invention, and the scope of the present invention is not limited to the product of FIG. 1 or the product on the photo.
보다 상세하게는, 상기 도어하드웨어는 손잡이(Door knob), 도어 힌지(Door hinge), 도어 록(Door lock), 모티스 록(Mortise lock), 컵핸들(Cup handle), 튜블러 레버 록(Tublar lever lock), 인테그랄 레버 록(Integral lever lock), 실린더 록(Cylinder lock), 데드 록(Dead lock), 도어 클로저(Door closer), 키(Key), 키 실린더(Key cylinder), 패닉 디바이스(Panic device), 오목 손잡이(Recessed pull), 슬라이딩 록(Sliding lock), 도어 스토퍼(Door stop), 풀핸들 (Pull handle), 전자도어록 (Electronic lock), 디지털 도어록(Digital door lock)으로 이루어진 군에서 선택된 하나일 수 있다.More specifically, the door hardware includes a door knob, a door hinge, a door lock, a mortise lock, a cup handle, and a tubular lever lock. lock), Integral lever lock, Cylinder lock, Dead lock, Door closer, Key, Key cylinder, Panic device ), a recessed pull, a sliding lock, a door stop, a pull handle, an electronic lock, and a digital door lock. can be
상기 물품에 대해서는 해당 기술분야에서 일반적으로 알려진 기술 상식에 기초하여 이해할 수 있다.The above articles can be understood based on common technical knowledge generally known in the art.
예를 들어, 상기 인테그랄 레버 록의 경우, 현관정 록과 같은 명칭으로 불리울 수 있으며, 상기 데드 록의 경우, 보조정과 같은 명칭으로 불리울 수 있다. 이는 해당 기술 분야에서는 일반적으로 동일한 부품을 지칭하는 것으로 널리 알려진 것이므로, 특별한 사정이 없는 한 본 발명의 도어하드웨어에 속하는 것으로 볼 수 있다.For example, in the case of the integral lever lock, it may be called a name such as a vestibule lock, and in the case of the dead lock, it may be called a name such as an auxiliary lock. Since this is widely known in the art to generally refer to the same part, it can be regarded as belonging to the door hardware of the present invention unless there are special circumstances.
다만, 상술한 도어하드웨어의 예시는, 본 발명을 보다 명확하게 이해하기 위한 것일 뿐, 상기 기재에 의하여 본 발명의 기술범위가 축소, 제한 해석되지 않는다.However, the above-described example of door hardware is only for understanding the present invention more clearly, and the technical scope of the present invention is not reduced or limited by the above description.
이하에서는, 본 발명의 도어하드웨어에 포함되는 상기 코팅층을 형성하기 위한 코팅제 조성물의 각 구성성분을 상세히 설명한다.Hereinafter, each component of the coating composition for forming the coating layer included in the door hardware of the present invention will be described in detail.
2) 불화 폴리비닐리덴(PVDF, Polyvinylidenefluoride) 분말2) Polyvinylidene fluoride (PVDF) powder
불화 폴리비닐리덴은 불소계 고분자 물질로서, 결정성과 열가소성을 가져 가공성이 좋으며 150찪 아래의 온도에서 내화학성, 높은 기계적 강도 및 압전특성도 보여주는 우수한 물성의 재료로 알려져 있다.Polyvinylidene fluoride is a fluorine-based polymeric material, which has good processability due to its crystallinity and thermoplasticity, and is known as a material with excellent physical properties showing chemical resistance, high mechanical strength, and piezoelectric properties at a temperature below 150 °C.
PVDF는 특히, 기계적 강도가 우수하고, 비교적 높은 온도에서도 잘 견디는 특성을 가져, 외부의 환경 변화, 즉, 기후나 기상의 변화에도 변형되거나 파괴, 손상되지 않는 장점을 가진다.In particular, PVDF has excellent mechanical strength, has characteristics that endure well even at relatively high temperatures, and has the advantage of not being deformed, destroyed, or damaged even in external environmental changes, that is, changes in climate or weather.
더욱이, PVDF는 높은 치수 안정성을 가지고, 내후성과 내마모성 및 내식성이 우수한 고분자 소재로 널리 알려져 있는 바, 본 발명에서는 잦은 마찰이 발생되고, 외부 환경 변화가 극심한 환경에서 사용되더라도 코팅층이 크게 손상되거나 박리되지 않고 장기간 유지될 수 있는 장기 내구성을 갖게 한다.Moreover, PVDF is widely known as a polymer material with high dimensional stability and excellent weather resistance, abrasion resistance, and corrosion resistance. long-term durability that can be maintained for a long time without
또한, PVDF는 소수성 재료로서, 코팅층의 상부로부터 피코팅면으로의 수분침투를 효율적으로 막을 수 있으므로, 내식성과 내화학성이 특히 우수한 특성을 갖는다.In addition, since PVDF is a hydrophobic material, it can effectively prevent water permeation from the top of the coating layer to the surface to be coated, so it has excellent corrosion resistance and chemical resistance.
본 발명에서는 PVDF를 분말 형태로 용매에 혼합하여 코팅제 조성물로 제조하여 코팅하고자 하는 피코팅면에 도포한 후 가열 건조하여 코팅층을 형성한다.In the present invention, PVDF is mixed with a solvent in the form of a powder to prepare a coating composition, applied to the coated surface to be coated, and then heated and dried to form a coating layer.
기존의 코팅제는 수분침투력, 즉, 수분보유력에 의해 코팅층의 경도나, 유연성, 수축, 팽창 특성이 다르게 나타날 수 있어, 굴곡진 피코팅면에 코팅층을 형성하면 시간이 경과함에 따라 피코팅면에 대한 부착력이 점차 떨어지게 되고, 심각하게는 코팅층이 저절로 피코팅면으로부터 박리되는 문제가 발생될 수 있다.Existing coating agents can show different hardness, flexibility, shrinkage, and expansion characteristics of the coating layer due to water penetration, that is, water retention. Adhesion is gradually reduced, and seriously, a problem in that the coating layer is spontaneously peeled off from the surface to be coated may occur.
반면에, PVDF의 경우에는, 소수성을 가지므로 수분침투력과 수분보유력이 낮아 거의 변형이 없이 부착력이 유지될 수 있다.On the other hand, in the case of PVDF, since it has hydrophobicity, water penetration and water retention are low, and adhesion can be maintained with almost no deformation.
PVDF 분말은 상기 코팅제 조성물 전체 중량을 기준으로, 50 내지 65 중량%로 첨가될 수 있다.PVDF powder may be added in an amount of 50 to 65% by weight based on the total weight of the coating composition.
이보다 과량으로 첨가되는 경우에는, 코팅제 조성물의 점도가 높아, 작업성이 저하되고, 코팅층의 부착력이 저하되는 문제가 있을 수 있고, 상기 함량보다 소량으로 첨가되는 경우에는, 형성된 코팅층의 내마모성이 저하되며, 코팅층으로 형성된 후의 경도가 크게 떨어지는 문제가 있다.When added in an excess amount, the viscosity of the coating composition is high, resulting in reduced workability and reduced adhesion of the coating layer. When added in a smaller amount than the above content, the wear resistance of the formed coating layer is reduced. , there is a problem that the hardness after being formed as a coating layer is greatly reduced.
PVDF 분말을 구성하는 분체의 평균 직경은 2 내지 4 ㎛(마이크로미터)인 것이 바람직하다. 상기 크기보다 큰 경우에는, 가열건조시 경화되지 않는 부분이 생기게 되어, 경도, 내마모성 및 충격성이 떨어지는 문제가 있고, 상기 크기보다 작은 경우에는, 코팅제 조성물의 점도가 증가하여 작업성이 떨어지는 문제가 있다.It is preferable that the average diameter of the powder constituting the PVDF powder is 2 to 4 μm (micrometers). If the size is larger than the above size, a portion that is not cured during heating and drying occurs, resulting in poor hardness, wear resistance and impact resistance, and if the size is smaller than the above size, the viscosity of the coating composition increases, resulting in poor workability. .
3) 하이드록시아파타이트(Hydroxyapatite, HA)3) Hydroxyapatite (HA)
수산화인회석으로도 불리우며, Ca5(PO4)3(OH)식을 가지는, 자연에서 발생한 광물(mineral)이지만 결정 단위셀(crystal unit cell)이 두 개체(entities)로 이루어져 있다는 걸 표시하기 위해 대개 Ca10(PO4)6(OH)2로 나타낸다.Also called hydroxyapatite, it is a naturally occurring mineral with the formula Ca 5 (PO 4 ) 3 (OH), but is usually used to indicate that the crystal unit cell consists of two entities. It is represented by Ca 10 (PO 4 ) 6 (OH) 2 .
하이드록시아파타이트는 물과 만나 OH-(수산화음이온) 래디컬을 형성하여, 세균의 세포막이나 바이러스의 단백질막, 유전적 파괴를 유발하여 사멸 기능을 갖는다.Hydroxyapatite meets water to form OH - (hydroxide anion) radicals, causing cell membranes of bacteria or protein membranes of viruses, and genetic destruction to have a killing function.
하이드록시아파타이트는 상기 코팅제 조성물 전체 중량을 기준으로 3 내지 7 중량%로 첨가될 수 있다.Hydroxyapatite may be added in an amount of 3 to 7% by weight based on the total weight of the coating composition.
상기 함량보다 과량으로 첨가되는 경우에는, 형성된 코팅층의 질긴 특성이 저하되고, 내후성이 떨어지는 문제가 있고, 상기 함량보다 소량으로 첨가되는 경우에는, 바이러스 및 세균의 사멸 기능이 떨어지는 문제가 있다.When added in excess of the above content, the toughness of the formed coating layer deteriorates and weather resistance deteriorates, and when added in a smaller amount than the above content, the function of killing viruses and bacteria deteriorates.
본 발명에서는 하이드록시아파타이트를 사용하여, 인체에 무해한 친환경 원료를 이용한 코팅층으로 형성한 것을 특징으로 한다.In the present invention, it is characterized by using hydroxyapatite to form a coating layer using environmentally friendly raw materials harmless to the human body.
4) 결합성 충진재4) Combined filler
결합성 충진재는 PVDF 구형 입자의 표면을 카나우바 왁스로 코팅한 복합 체이다. 이 복합체는, 코팅제 조성물 상태에서는 별다른 작용없이 유지되다가, 열을 가하여 코팅층을 형성하는 단계에서, 카나우바 왁스 코팅층이 녹아 내부의 PVDF 구형 입자가 방출되어 코팅제 조성물이 경화되며 형성되는 빈 공간을 메꿔 단단한 구조의 코팅층을 형성하는 것을 돕는다.The bonding filler is a composite in which the surface of PVDF spherical particles is coated with carnauba wax. This composite is maintained without any special action in the coating composition state, but in the step of forming a coating layer by applying heat, the carnauba wax coating layer melts and the PVDF spherical particles inside are released to fill the empty space formed by curing the coating composition to make it hard. Helps form the coating layer of the structure.
상기 불화 폴리비닐리덴 구형 입자의 평균 직경이 상기 크기보다 큰 경우에는, 코팅제 조성물로 형성되는 코팅층의 두께가 두꺼워져 코팅층의 건조가 지연되고 코팅층의 품질이 저하되는 문제가 있고, 상기 크기보다 작은 경우에는, 코팅제 조성물 내에서 균일하게 분산되지 않아 코팅층이 균일한 부착력을 갖기 어려운 문제가 있다.When the average diameter of the polyvinylidene fluoride spherical particles is greater than the above size, the thickness of the coating layer formed of the coating composition becomes thick, which delays drying of the coating layer and deteriorates the quality of the coating layer. In, there is a problem that the coating layer is difficult to have uniform adhesion because it is not uniformly dispersed in the coating composition.
상기 결합성 충진재는, 상기 결합성 충진재 내에 캡슐화된 PVDF 구형 입자가, 코팅제 조성물에 분산, 용해되어 있는 PVDF보다 늦게 용융, 경화되기 시작하면서, 피코팅재 표면에서의 부착면적을 더 넓히고, 경화 과정에서 코팅층의 수축으로 인해 피코팅재로부터 간격이 다소 벌어지는 것을 방지하여 피코팅재와의 거리를 보다 더 밀착시켜 부착력을 향상시키는 효과가 있다.The bonding filler, as the PVDF spherical particles encapsulated in the bonding filler begin to melt and harden later than the PVDF dispersed and dissolved in the coating composition, the adhesion area on the surface of the material to be coated is wider, and in the curing process There is an effect of improving the adhesion by preventing the distance from the coating material from slightly widening due to the shrinkage of the coating layer and making the distance to the coating material more closely.
특히, 이와 같은 부착력이 향상되는 특성은, 금속 표면에 코팅할 때 두드러지게 나타나는데, 알루미늄 또는 스테인레스, 아연합금 등과 같은 금속의 표면에서 코팅층의 부착력을 더욱 향상시키는 효과가 있다. In particular, such a property of improving adhesion is conspicuous when coated on a metal surface, and has the effect of further improving the adhesion of the coating layer on the surface of a metal such as aluminum, stainless steel, or zinc alloy.
다만, 이는 하나의 예시에 불과할 뿐, 본 발명을 구성하는 코팅층을 구비한 도어하드웨어를 형성할 수 있는 금속 재질의 소재(성형체)이면 특별히 제한되지 않고 다양한 금속 재질로 구성되는 것이 가능하다.However, this is only one example, and it is not particularly limited as long as it is a metal material (molded body) capable of forming the door hardware having a coating layer constituting the present invention, and it is possible to be composed of various metal materials.
상기 결합성 충진재는 상기 코팅제 조성물 전체 중량을 기준으로 1 내지 5 중량%로 포함될 수 있다.The binding filler may be included in an amount of 1 to 5% by weight based on the total weight of the coating composition.
상기 함량보다 과량으로 첨가되는 경우에는, 코팅제 조성물의 점도가 증가하고, 코팅층을 형성하기 위한 가열건조과정에서 깨지기 쉬운 특성을 갖게 되는 문제가 있다. 상기 함량보다 소량으로 첨가되는 경우에는, 코팅층이 형성되는 면과의 부착력이 다소 떨어지는 문제가 있다.When added in excess than the above content, there is a problem in that the viscosity of the coating composition increases and brittleness occurs during the heating and drying process for forming the coating layer. When added in a smaller amount than the above content, there is a problem in that the adhesion to the surface on which the coating layer is formed is somewhat lowered.
결합성 충진재를 제조하기 위한, 상기 PVDF의 구형 입자의 평균 직경은 1 내지 3 ㎛(마이크로미터)인 것이 바람직하다. 상기 크기보다 큰 경우에는, 코팅제 조성물의 가열건조 과정에서 조성물 내에 분산되어 있는 PVDF 분말 사이의 빈 공간에 결합성 충진재가 충분히 침투하지 못하게 되어, 코팅층의 경도가 떨어지는 문제가 있고, 상기 크기보다 작은 경우에는, 결합성 충진재 자체의 제조가 어려운 문제가 있다.It is preferable that the average diameter of the spherical particles of the PVDF is 1 to 3 μm (micrometer) for preparing the bonding filler. If the size is larger than the above size, the bonding filler cannot sufficiently penetrate into the empty space between the PVDF powders dispersed in the coating composition during the heating and drying process, resulting in a decrease in the hardness of the coating layer. In, there is a difficult problem in the manufacture of the bonding filler itself.
한편, 상기 불화 폴리비닐리덴의 표면에 형성되는 카나우바 왁스 코팅층은 두께가 0.1 내지 0.5 ㎛(마이크로미터)인 것이 바람직하다. 상기 두께보다 두꺼운 경우, 코팅제 조성물 내의 입자 크기가 증가함에 따라, 균일한 도포가 어려운 문제가 있고, 상기 두께보다 얇은 경우에는, 균일한 두께의 코팅층으로 형성되기 어려운 문제가 있다.Meanwhile, the carnauba wax coating layer formed on the surface of the polyvinylidene fluoride preferably has a thickness of 0.1 to 0.5 μm (micrometer). When it is thicker than the above thickness, as the particle size in the coating composition increases, uniform application is difficult, and when it is thinner than the above thickness, it is difficult to form a coating layer having a uniform thickness.
5) 용매(분산매)5) Solvent (dispersion medium)
본 발명에 따른 도어하드웨어의 코팅층을 형성하기 위한 코팅제 조성물은 용매이자 분산매로, 사용될 수 있는 용매이면 특별히 제한되지 않고 사용이 가능하다.The coating agent composition for forming the coating layer of door hardware according to the present invention is a solvent and a dispersion medium, and any solvent that can be used can be used without particular limitation.
다만, 사용자의 접촉이 잦은 도어하드웨어의 코팅층을 형성하기 위한 조성물에 포함되는 것이므로, 인체에 유해하지 않은 물, 알코올 등과 같은 용매를 이용하여 제조된 것이면 사용할 수 있으며, 도료, 도장 분야에서 친환경 용매로 사용될 수 있는 것이면 제한되지 않고 사용이 가능하다.However, since it is included in the composition for forming the coating layer of door hardware that users frequently contact, it can be used if it is manufactured using a solvent such as water or alcohol that is not harmful to the human body, and can be used as an eco-friendly solvent in the field of paint and painting. Anything that can be used is not limited and can be used.
용매 외의 각 성분은 전부 용해되지 않더라도, 일부 용해된 후에는, 용매 내에서 분산된 상태로 코팅제 조성물 내에 존재한다.Even if each component other than the solvent is not completely dissolved, after partially dissolved, they exist in the coating composition in a dispersed state in the solvent.
6) 기타6) Other
본 발명에 따른 도어하드웨어의 코팅층을 형성하는 코팅제 조성물은 추가로 유색안료, 백색안료를 더 포함할 수 있다.The coating composition forming the coating layer of the door hardware according to the present invention may further include a colored pigment or a white pigment.
PVDF는 수지 그 자체로는 투명하기 때문에, 코팅층에 미감을 부여하거나, 기능적인 이유로 인해 안료의 첨가가 필요한 경우가 있으므로, 이에 따라, 적절히 첨가될 수 있다.Since PVDF is transparent by itself, it may be necessary to add a pigment to impart aesthetics to the coating layer or for functional reasons, so it can be appropriately added.
첨가하지 않는 경우, 투명한 코팅제로 활용할 수 있고, 유색안료 및 백색안료를 첨가하는 경우, 색상을 가진 코팅층을 형성할 수 있다.When not added, it can be used as a transparent coating agent, and when colored pigments and white pigments are added, a coating layer having a color can be formed.
이때, 유색안료와 백색안료는 상기 코팅제 조성물 전체 중량을 기준으로 0.1 내지 3 중량%로 첨가될 수 있다.In this case, the colored pigment and the white pigment may be added in an amount of 0.1 to 3% by weight based on the total weight of the coating composition.
상기 함량보다 안료를 과다하게 첨가하는 경우에는, 코팅제 조성물의 점도가 증가하여 도포가 어려워지는 문제가 있고, 상기 함량보다 안료를 소량으로 첨가하는 경우에는, 원하는 색상으로 충분히 발색되지 않는 문제가 있다.When the pigment is added in excess of the above content, the viscosity of the coating composition increases, making application difficult, and when the pigment is added in a smaller amount than the above content, there is a problem in that the desired color is not sufficiently developed.
7) 제조방법7) Manufacturing method
이하에서는, 본 발명에 따른 도어하드웨어의 제조방법을 설명한다.Hereinafter, a method of manufacturing door hardware according to the present invention will be described.
도 6은 본 발명에 따른 도어하드웨어의 제조 공정을 나타낸 사진으로서, 이를 참고하여, 도어하드웨어의 제조 과정을 간단히 나타내면 다음과 같다.6 is a photograph showing a manufacturing process of the door hardware according to the present invention. With reference to this, the manufacturing process of the door hardware is briefly shown as follows.
[클리어코팅 제품][Clear coating product]
금속 재질의 성형체 제조 => 금속 표면 연마 => 금속 표면 탈지 => 금속 표면 처리(도금, 아노다이징) => 클리어 코팅층 형성Manufacture of molded body made of metal => Metal surface polishing => Metal surface degreasing => Metal surface treatment (plating, anodizing) => Clear coating layer formation
[유색 도장 제품][Colored paint products]
금속 물품의 형성 => 금속 표면 연마 => 금속 표면 탈지 => 유색 코팅층 형성Formation of metal article => Polishing of metal surface => Degreasing of metal surface => Formation of colored coating layer
이하에서는, 제조방법을 상세히 설명한다.Hereinafter, the manufacturing method will be described in detail.
본 발명에 따른 도어하드웨어의 제조방법은,The manufacturing method of the door hardware according to the present invention,
(a) 금속 재질의 성형체를 제조하는 단계;(a) manufacturing a molded body made of metal;
(b) 상기 금속 재질의 성형체 표면을 초음파 세척한 후, 에어(Air) 세척한 다음 도장용 지그에 장착하는 단계;(b) cleaning the surface of the molded body made of metal with ultrasonic waves, then cleaning it with air, and then mounting it on a painting jig;
(c) 상기 (b) 단계를 거친 금속 재질의 성형체 표면에 코팅제 조성물을 도포하는 단계;(c) applying a coating composition to the surface of the molded body made of metal after step (b);
(d) 상기 (c) 단계를 거친 금속 재질의 성형체를 210 내지 230℃의 온도에서 40 내지 50분간 가열건조하는 단계;(d) heating and drying the molded body made of metal after step (c) at a temperature of 210 to 230° C. for 40 to 50 minutes;
를 포함하고,including,
상기 (c) 단계의 상기 코팅제 조성물은,The coating composition of step (c),
ㄱ) 1 내지 3㎛(마이크로미터)의 평균 직경을 갖는 불화 폴리비닐리덴 구형 입자를 70 내지 78℃의 온도로 10 내지 20분간 가열한 카나우바 왁스와 혼합하여 50 내지 100 rpm의 속도의 믹서로 섞는 단계,a) Polyvinylidene fluoride spherical particles having an average diameter of 1 to 3 μm (micrometers) are mixed with carnauba wax heated at a temperature of 70 to 78 ° C for 10 to 20 minutes and mixed with a mixer at a speed of 50 to 100 rpm mixing step,
ㄴ) 상기 ㄱ) 단계에서 얻어진 혼합물을 금속 트레이에 2 내지 5 mm의 두께로 펼친 후, 5 내지 10℃의 온도의 바람으로 건조시켜 결합성 충진재를 제조하는 단계 및b) preparing a binding filler by spreading the mixture obtained in step a) on a metal tray to a thickness of 2 to 5 mm and then drying with wind at a temperature of 5 to 10 ° C; and
ㄷ) 불화 폴리비닐리덴(PVDF, Polyvinylidenefluoride) 분말 50 내지 65 중량%, 하이드록시아파타이트(Hydroxyapatite, HA) 3 내지 7 중량% 및 상기 결합성 충진재 1 내지 5 중량%를 잔부의 용매에 넣어 혼합하여 코팅제 조성물을 제조하는 단계c) 50 to 65% by weight of polyvinylidene fluoride (PVDF) powder, 3 to 7% by weight of hydroxyapatite (HA), and 1 to 5% by weight of the bonding filler are mixed in the remaining solvent to form a coating agent preparing the composition
를 거쳐 제조된다.manufactured through
상기 (a) 단계는 금속 재질의 성형체를 제조하는 단계로서, 상기 금속 재질의 성형체를 목적하는 도어하드웨어 물품에 적합한 형상으로 제조한다. 금속 재질의 형상으로 성형하는 방법이면 어떠한 방법이든 제한되지 않으며, 예를 들면, 주조(캐스팅, Casting)하여 금속 재질의 성형체를 제조할 수 있다.The step (a) is a step of manufacturing a molded body made of a metal material, and the molded body made of a metal material is manufactured into a shape suitable for a desired door hardware product. Any method is not limited as long as it is a method of forming into a shape of a metal material, and, for example, a molded body of a metal material may be manufactured by casting (casting).
상기 금속 재질의 성형체 표면은 필요에 따라 연마 과정을 더 거칠 수 있다. 연마 과정을 거쳐, 상기 금속 재질의 성형체 표면은 불균일한 요철을 제거하여 매끈한 표면으로 가공되고, 최종 완성된 도어하드웨어의 표면 접촉 질감을 향상시킬 수 있다.The surface of the molded body made of metal may further undergo a polishing process if necessary. Through the polishing process, the surface of the molded body made of metal is processed into a smooth surface by removing non-uniform irregularities, and the surface contact texture of the finally completed door hardware can be improved.
또한, 연마 과정을 통하여, 금속 재질의 성형체를 형성하는 과정에서 형성된 흠결(표면 흠집, 외부 물질 오염 등)들을 제거할 수 있으며, 표면에 클리어코팅 처리를 하는 경우에는 표면 미감과 질감을 향상시킬 수 있는 장점이 있다.In addition, through the polishing process, defects formed in the process of forming a molded body made of metal (surface scratches, contamination with external substances, etc.) can be removed, and when clear coating is applied to the surface, the aesthetics and texture of the surface can be improved. There are advantages to being
상기 (a) 단계를 거친 금속 재질의 성형체는 표면을 초음파 세척한 후, 에어(Air) 세척한 다음 도장용 지그에 장착하는 (b) 단계를 거친다.The surface of the molded body made of metal after step (a) is ultrasonically cleaned, then cleaned with air, and then subjected to step (b) of mounting on a painting jig.
상기 초음파 세척 과정은 초음파 장치를 이용하여 40 ℃의 온도로 3분간 세척함으로써 수행할 수 있다.The ultrasonic cleaning process may be performed by washing for 3 minutes at a temperature of 40 °C using an ultrasonic device.
상기 에어 세척 단계는, 상기 금속 재질의 성형체 표면을 휘발성 세척용제로 세척한 다음 정전기 방지 건으로 먼지, 이물질 등을 제거하는 방법으로 수행될 수 있다.The air cleaning step may be performed by washing the surface of the molded body made of metal with a volatile cleaning solvent and then removing dust and foreign substances with an antistatic gun.
상기 휘발성 세척용제는 금속 도장 분야에서 사용될 수 있는 것이면 특별히 제한되지 않고 사용이 가능하다.The volatile cleaning solvent may be used without particular limitation as long as it can be used in the field of metal painting.
상기 에어 세척을 거친 다음에는 도장용 지그에 상기 금속 재질의 성형체를 장착한다. 이 때, 상기 금속 재질의 성형체를 도장용 지그에 장착한 상태에서 코팅제 조성물이 도포되지 않는 영역없이 고르고 균일하게 일정한 두께로 도포될 수 있으면서도, 분사각도 유지에 유리한 전용 도장용 지그에 장착하는 것이 바람직하다.After the air washing, the molded body made of the metal is mounted on a painting jig. At this time, it is preferable to mount the molded body of metal material on a dedicated painting jig that is advantageous in maintaining the spray angle while being evenly and uniformly applied at a constant thickness without an area where the coating composition is not applied in a state in which the molded body made of metal is mounted on the painting jig. do.
상기 (b) 단계를 거친 후에는 상기 금속 재질의 성형체 표면에 코팅제 조성물을 도포하는 (c) 단계를 수행한다.After step (b) is performed, step (c) of applying a coating composition to the surface of the molded body made of metal is performed.
상기 (c) 단계의 코팅제 조성물은 상술한 본 발명의 도어하드웨어를 구성하는 코팅층을 형성하기 위한 것으로서, 그 제조방법에 관해서는 후술한다.The coating composition of step (c) is for forming a coating layer constituting the door hardware of the present invention described above, and a manufacturing method thereof will be described later.
상기 코팅제 조성물을 도포하는 과정은 바람직하게는, 물리적인 코팅방식으로 수행될 수 있다. 정전식 코팅방식의 경우, 코팅제 조성물의 변형, 특히, 바이러스/세균 사멸 기능을 저하시킬 수 있는 우려가 있으므로, 물리적인 코팅방법으로 수행하는 것이 바람직하다.The process of applying the coating composition may be preferably performed by a physical coating method. In the case of the electrostatic coating method, since there is a concern that deformation of the coating composition, in particular, deterioration of the virus/bacterial killing function, it is preferable to perform the physical coating method.
상기 (c) 단계를 거친 후에는, 금속 재질의 성형체를 210 내지 230℃의 온도에서 40 내지 50분간 가열건조하는 단계를 수행한다.After the step (c), a step of heating and drying the molded body made of metal at a temperature of 210 to 230 ° C. for 40 to 50 minutes is performed.
상기 온도보다 낮은 온도로는 PVDF가 충분히 경화되지 못하여 코팅층이 형성되지 못하거나, 코팅층의 경도가 떨어지는 문제가 있고, 상기 온도보다 높은 경우에는, 표면이 고른 코팅층이 형성되지 못하여, 코팅층의 표면품질이 저하될 수 있는 문제가 있다.At a temperature lower than the above temperature, there is a problem that PVDF is not sufficiently cured and the coating layer cannot be formed or the hardness of the coating layer is lowered. There are issues that can deteriorate.
한편, 상기 (c) 단계의 코팅제 조성물은 다음과 같은 방법으로 제조된다.On the other hand, the coating composition of step (c) is prepared in the following way.
ㄱ) 1 내지 3㎛(마이크로미터)의 직경을 갖는 불화 폴리비닐리덴 구형 입자를 70 내지 78℃의 온도로 10 내지 20분간 가열한 카나우바 왁스와 혼합하여 50 내지 100 rpm의 속도의 믹서로 섞는 단계;a) Polyvinylidene fluoride spherical particles having a diameter of 1 to 3 μm (micrometers) are mixed with carnauba wax heated at a temperature of 70 to 78 ° C. for 10 to 20 minutes and mixed with a mixer at a speed of 50 to 100 rpm step;
ㄴ) 상기 ㄱ) 단계에서 얻어진 혼합물을 금속 트레이에 2 내지 5 mm의 두께로 펼친 후, 5 내지 10℃의 온도의 바람으로 건조시켜 결합성 충진재를 제조하는 단계; 및b) preparing a bonding filler by spreading the mixture obtained in step a) on a metal tray to a thickness of 2 to 5 mm and then drying it with wind at a temperature of 5 to 10 ° C; and
ㄷ) 불화 폴리비닐리덴(PVDF, Polyvinylidenefluoride) 분말 50 내지 65 중량%, 하이드록시아파타이트(Hydroxyapatite, HA) 3 내지 7 중량% 및 상기 결합성 충진재 1 내지 5 중량%를 잔부의 용매에 넣어 혼합하여 코팅제 조성물을 제조하는 단계;c) 50 to 65% by weight of polyvinylidene fluoride (PVDF) powder, 3 to 7% by weight of hydroxyapatite (HA), and 1 to 5% by weight of the bonding filler are mixed in the remaining solvent to form a coating agent preparing a composition;
를 거쳐 제조된다.manufactured through
상기 ㄱ) 단계는 결합성 충진재를 제조하는 단계로서, 반용융상태의 카나우바 왁스에 PVDF 구형 입자를 넣어 코팅시키고, ㄴ) 단계에서는 이를 금속 트레이에 펼쳐 저온의 바람으로 건조시켜 제조한다.Step a) is a step of preparing a bonding filler, and PVDF spherical particles are put into semi-molten carnauba wax and coated, and in step b), it is prepared by spreading it on a metal tray and drying it with low-temperature wind.
이 때, 상기 ㄴ) 단계에서 건조된 PVDF 입자는 트레이에 펼쳐진 상태로 건조됨으로써 다소 굳어진 블록과 같은 형태가 되는데, 이를 가볍게 바스러트려 코팅된 입자 형태의 분말로 얻을 수 있다.At this time, the PVDF particles dried in the step b) are dried in a state spread on a tray to become a slightly hardened block-like form, which can be lightly crushed to obtain a powder in the form of coated particles.
상기 카나우바 왁스를 반용융상태로 만들기 위해서는, 70 내지 78℃의 온도로 10 내지 20분간 가열한다. 이보다 높은 온도로 가열하는 경우에는, 상기 카나우바 왁스가 액상으로 변하게 되어, 각 PVDF 구형 입자의 표면에 왁스 코팅층을 형성하기 어려워지는 문제가 있고, 이보다 낮은 온도로 가열하는 경우에는, 결합성 충진재를 형성하기 위해 충분히 균일하게 혼합하기 어려운 문제가 있다.In order to make the carnauba wax in a semi-molten state, it is heated for 10 to 20 minutes at a temperature of 70 to 78 ° C. When heated to a temperature higher than this, the carnauba wax turns into a liquid phase, making it difficult to form a wax coating layer on the surface of each PVDF spherical particle. It is difficult to mix uniformly enough to form.
가열시간은 마찬가지로, 상기 시간보다 짧아지면, 충분히 반용융상태로 녹지 못하는 문제가 있고, 상기 시간보다 길어지면, 액상의 카나우바 왁스의 양이 많아져, 왁스 코팅층이 두껍게 형성되는 문제가 있다.Likewise, if the heating time is shorter than the above time, there is a problem that it is not sufficiently melted in a semi-melted state, and if it is longer than the above time, the amount of liquid carnauba wax increases and the wax coating layer is formed thickly.
금속 트레이에 건조하는 단계는, 금속 트레이에서 열을 쉽게 잃을 수 있으며, 건조된 결합성 충진재의 분리가 용이하기 때문에 금속 트레이를 사용한다.In the step of drying on a metal tray, a metal tray is used because heat can be easily lost in the metal tray and separation of the dried bonding filler is easy.
혼합물은 2-5mm의 두께로 펼쳐서 5 내지 10℃의 온도의 바람으로 건조시키는데, 상기 두께보다 두꺼운 경우에는, 결합성 충진재 입자가 개별적으로 분리되지 않고 하나 뭉쳐지는 문제가 있을 수 있고, 상기 두께보다 얇으면, 금속 트레이 표면으로부터 분리시키기가 어려워지는 문제가 있다.The mixture is spread to a thickness of 2-5 mm and dried with wind at a temperature of 5 to 10 ° C. If it is thicker than the above thickness, there may be a problem that the bonding filler particles are not separated individually but agglomerated, and If it is thin, there is a problem that it becomes difficult to separate from the metal tray surface.
온도는 상기와 같이 상온보다 낮은 저온의 온도인 것이 바람직한데, 카나우바 왁스층이 서로 달라붙지 않게 하고, 하나의 덩어리로 형성되지 않도록 하기 위함이다.The temperature is preferably a low temperature lower than room temperature as described above, in order to prevent the carnauba wax layers from sticking to each other and from being formed as one lump.
이렇게 제조된 결합성 충진재는 1 내지 5 중량%의 함량으로 불화 폴리비닐리덴(PVDF, Polyvinylidenefluoride) 분말 50 내지 65 중량%, 하이드록시아파타이트(Hydroxyapatite, HA) 3 내지 7 중량%를 잔부의 용매에 넣어 혼합함으로써 코팅제 조성물로 제조된다.The bonding filler prepared in this way is 1 to 5% by weight by adding 50 to 65% by weight of polyvinylidenefluoride (PVDF) powder and 3 to 7% by weight of hydroxyapatite (HA) in the remaining solvent. By mixing, the coating composition is prepared.
상술한 바와 같이, 본 발명에 따른 도어하드웨어는 클리어코팅층을 포함할 수도 있고, 유색 안료 및 백색 안료를 소정의 함량으로 포함하는 유색의 코팅제 조성물로 제조하여 사용함으로써, 유색의 코팅층을 포함할 수도 있다.As described above, the door hardware according to the present invention may include a clear coating layer, and may include a colored coating layer by using a colored coating composition containing a colored pigment and a white pigment in a predetermined amount. .
상기와 같이, 유색 안료 및 백색 안료를 더 포함하여 유색의 코팅제 조성물로 코팅층을 형성한 도어하드웨어는 코팅층을 형성하기 전에 불소계 프라이머를 도포하는 단계를 먼저 수행할 수 있다.As described above, the door hardware in which the coating layer is formed with the colored coating agent composition further including the colored pigment and the white pigment may first perform a step of applying a fluorine-based primer before forming the coating layer.
구체적으로, (b) 단계를 거친 금속 재질의 성형체 표면에 유색의 코팅제 조성물을 도포하기 전, 불소계 프라이머를 도포하여 건조하는 과정을 추가로 수행할 수 있다.Specifically, before applying the colored coating composition to the surface of the molded body made of metal that has undergone step (b), a process of applying and drying a fluorine-based primer may be additionally performed.
이 때, 상기 불소계 프라이머는 유색 안료 및 백색 안료가 혼합되지 않은 상태의 클리어코팅 코팅제 조성물을 유기용제와 100: 30~40 중량 비율로 혼합하여 사용하고, 이를 20 내지 40℃의 온도에서 15분간 건조하는 과정을 거친다.At this time, the fluorine-based primer is used by mixing the clear coating coating composition in which the color pigment and the white pigment are not mixed with an organic solvent in a weight ratio of 100: 30 to 40, and drying it at a temperature of 20 to 40 ° C. for 15 minutes. go through the process of
상기 불소계 프라이머는 상기 (b) 단계를 거친 금속 재질의 성형체 표면에 도포하여 10 내지 15㎛(마이크로미터)의 도막으로 형성할 수 있다.The fluorine-based primer may be applied to the surface of the molded body made of metal after step (b) to form a coating film of 10 to 15 μm (micrometers).
상기 두께보다 두꺼운 경우에는, 코팅층의 형성 시 상기 불소계 프라이머 도막이 충분히 건조되지 않아 코팅층 형성 시의 품질이 저하될 수 있고, 상기 두께보다 얇은 경우에는, 금속 재질의 성형체와의 부착력을 향상시키는 효과가 미미하고, 클리어코팅층을 포함하는 도어하드웨어의 표면에서의 클리어코팅층을 탁하게 하는 문제가 있다.When the thickness is thicker than the above, the fluorine-based primer coating film is not sufficiently dried during formation of the coating layer, and thus the quality at the time of forming the coating layer may be deteriorated. And, there is a problem of making the clear coating layer on the surface of the door hardware including the clear coating layer cloudy.
이하, 본 발명의 실시예를 기초로 보다 상세히 설명하나 이는 본 발명의 이해를 위한 하나의 예시적인 기재에 불과한 것일 뿐, 본 발명의 권리범위가 다음의 실시예로 한정되거나 제한되지 아니한다.Hereinafter, it will be described in more detail based on an embodiment of the present invention, but this is only an exemplary description for understanding the present invention, and the scope of the present invention is not limited or limited to the following examples.
[제조예(실시예 1)][Production Example (Example 1)]
1) 성형체 제조1) Manufacture of molded body
알루미늄 캐스팅하여 도 1의 a)와 같은 금속의 고유의 색상이 드러나는 문고리 형상의 성형체를 캐스팅하고, 그 표면을 연마하였다. By casting aluminum, a doorknob-shaped molded body in which the unique color of the metal is revealed as shown in a) of FIG. 1 was cast, and the surface thereof was polished.
i) 클리어코팅층을 포함하는 도어하드웨어의 경우, 도금 또는 아노다이징하고, ii) 유색 코팅층을 포함하는 도어하드웨어의 경우, 추가 처리 없이 초음파 장치에 넣어 40℃의 온도에서 3분간 초음파 세척하였다.i) in the case of door hardware including a clear coating layer, plating or anodizing, and ii) in the case of door hardware including a colored coating layer, it was placed in an ultrasonic device without additional treatment and ultrasonically cleaned for 3 minutes at a temperature of 40 ° C.
휘발성 세척용제를 이용하여 표면을 세척한 후, 정전기 방지 건(Gun)으로 표면의 먼지와 이물질을 제거한 다음, 도장용 지그에 장착하였다.After cleaning the surface using a volatile cleaning solvent, dust and foreign substances on the surface were removed with an antistatic gun, and then mounted on a painting jig.
2) 결합성 충진재 제조2) Manufacture of bonding filler
2㎛ 평균 직경의 구형 입자로 준비된 불화 폴리비닐리덴 200 g을 준비하고, 75~76℃의 온도로 유지된 팟(Pot)에 카나우바 왁스를 넣고 12분간 가열하였다. 가열된 카나우바 왁스는 완전히 녹지는 않고 반정도 녹은 상태에서, 준비된 구형의 불화 폴리비닐리덴 입자 200g을 전부 첨가하고, 60 rpm의 속도로 믹서를 이용하여 충분히 혼합하였다.200 g of polyvinylidene fluoride prepared as spherical particles having an average diameter of 2 μm was prepared, and carnauba wax was placed in a pot maintained at a temperature of 75 to 76° C. and heated for 12 minutes. While the heated carnauba wax was not completely melted but half-melted, 200 g of prepared spherical polyvinylidene fluoride particles were all added and thoroughly mixed using a mixer at a speed of 60 rpm.
충분히 섞인 혼합물은 금속 트레이에 약 2 mm의 두께로 얇게 펼쳐 밀폐된 건조기에 넣고, 5~10℃의 내부 온도를 유지하며 바람을 제공하였다. 건조된 상태에서 가볍게 부셔 입자 상태의 결합성 충진재를 제조하였다.The sufficiently mixed mixture was spread thinly on a metal tray to a thickness of about 2 mm and placed in a closed dryer, and wind was provided while maintaining an internal temperature of 5 to 10 ° C. It was lightly crushed in a dried state to prepare a binder filler in a particulate state.
얻어진 결합성 충진재 중 임의로 10회 서로 다른 위치에서 취하여, SEM을 이용하여 표면의 왁스 코팅층의 두께를 측정하였고, 평균 0.2 내지 0.4 ㎛의 두께를 갖는 것으로 확인되었다.The obtained bonding filler was randomly taken at different positions 10 times, and the thickness of the wax coating layer on the surface was measured using SEM, and it was found to have an average thickness of 0.2 to 0.4 μm.
3) 코팅제 조성물을 제조3) Preparation of coating composition
제조된 결합성 충진재와 약 2~4㎛의 평균 직경을 갖는 분체로 가공한 불화 폴리비닐리덴(KYNAR® 500) 600g과 하이드록시아파타이트 10g, 결합성 충진재 200 g을 수계 용매에 넣어 혼합하고, 혼합물의 총 중량이 1kg이 되도록 용매를 더 첨가한 다음 충분히 혼합하여 코팅제 조성물을 완성하였다.The prepared associative filler and 600 g of polyvinylidene fluoride (KYNAR® 500) processed into powder having an average diameter of about 2 to 4 μm, 10 g of hydroxyapatite, and 200 g of the associative filler were mixed in an aqueous solvent, and the mixture A solvent was further added so that the total weight of the was 1 kg, and then sufficiently mixed to complete the coating composition.
하기 표 1의 조성을 참고하여 실시예와 비교예의 코팅제 조성물을 제조하였다.Coating compositions of Examples and Comparative Examples were prepared with reference to the compositions in Table 1 below.
구분division 실시예Example 비교예comparative example
1One 22 1One 22 33 44 55 66 77 88
PVDFPVDF 분말크기
(㎛)powder size
(μm) 		2~42 to 4 1One 1111 2~42 to 4
함량
(중량%)content
(weight%) 		6060 6060 6060 6060 6060 6060 4545 7070 6060 6060
HAHA 함량
(중량%)content
(weight%) 		55 44 55 55 55 55 55 55 -- 88
결합성 충진재bonding filler PVDF 입자크기
(㎛)PVDF particle size
(μm) 		22 2.52.5 0.50.5 55 22 22 22 22 22 22
함량
(중량%)content
(weight%) 		2020 2121 2020 2020 2020 2020 2020 2020 2020 2020
안료
(이산화티탄)pigment
(titanium dioxide) 		함량
(중량%)content
(weight%) 		-- 1One -- -- -- -- -- -- -- --
용매menstruum 함량
(중량%)content
(weight%) 		잔량balance
4-1) 코팅층 형성(클리어코팅)4-1) Coating layer formation (clear coating)
상기 실시예 1 및 비교예들의 코팅제 조성물을 이용하여 다음과 같이 클리어코팅층을 포함하는 문고리를 제조한다.Using the coating compositions of Example 1 and Comparative Examples, a doorknob including a clear coating layer was prepared as follows.
먼저, 실시예 1과 비교예에 따라 제조된 각각의 코팅제 조성물을 유기용제(아세톤)와 100: 30의 중량비율로 혼합하여 불소계 프라이머 조성물을 제조하고, 각 문고리 표면에 도포한 다음, 1분간 방치하였다.First, each coating agent composition prepared in Example 1 and Comparative Example was mixed with an organic solvent (acetone) in a weight ratio of 100:30 to prepare a fluorine-based primer composition, applied to the surface of each doorknob, and then left for 1 minute. did
그 다음, 유기용제와 혼합하지 않은 각각의 코팅제 조성물을 프라이머 도막 표면에 도포하고, 210 내지 230℃의 온도를 유지하며 40분간 가열건조하였다.Then, each coating composition not mixed with an organic solvent was applied to the surface of the primer coating film, and heated and dried for 40 minutes while maintaining a temperature of 210 to 230 ° C.
4-2) 코팅층 형성(유색)4-2) Formation of coating layer (color)
실시예 2의 코팅제 조성물을 이용하여 상기 1)에서 제조된 성형체 표면에 도포하고, 210 내지 230℃의 온도를 유지하며 40분간 가열건조하였다.The coating composition of Example 2 was applied to the surface of the molded body prepared in 1) above, and heated and dried for 40 minutes while maintaining a temperature of 210 to 230 ° C.
[물성평가][Physical property evaluation]
제조된 실시예와 비교예의 코팅제 조성물을 이용하여, 동일한 두께의 코팅층을 형성한 후, 이에 대해 평가를 진행하고, 그 결과를 표 2에 나타냈다.After forming a coating layer having the same thickness using the coating compositions of the prepared examples and comparative examples, evaluation was conducted on this, and the results are shown in Table 2.
실시예 1과 비교예를 이용하여 제조된 클리어코팅층을 포함하는 도어하드웨어에 대해 평가를 진행하고, 그 결과의 평균값(소수점 아래는 버림)으로 기재하였다.The door hardware including the clear coating layer manufactured using Example 1 and Comparative Example was evaluated, and the average value of the results (the decimal point was rounded down) was described.
마찬가지로, 실시예 2의 도어하드웨어에 대해 평가를 진행하고, 그 결과의 평균값(소수점 아래는 버림)으로 기재하였다.Similarly, evaluation was performed on the door hardware of Example 2, and the average value of the results (the decimal point was rounded down) was described.
비교예 1의 경우, 결합성 충진재를 제조하기 위한 PVDF 구형 입자 크기가 너무 작아 결합성 충진재를 제조하기 어려운 문제가 있었고, 비교예 3의 경우에는 용매에 분산되는 PVDF 분말의 입자가 너무 작아 점도 증가로 인해 슬러지와 같이 제조되는 문제가 있어, 코팅층을 형성하는 것이 불가능하였다. In the case of Comparative Example 1, the PVDF spherical particle size for preparing the binding filler was too small, and it was difficult to prepare the binding filler. In the case of Comparative Example 3, the particles of the PVDF powder dispersed in the solvent were too small, so the viscosity increased. Due to the problem of being produced like sludge, it was impossible to form a coating layer.
항목item 시험방법Test Methods 규격standard 실시예Example 비교예comparative example
1One 22 1One 22 33 44 55 66 77 88
경도Hardness 연필경도 시험pencil hardness test ASTM D3363ASTM D3363 2H2H 2H2H -- 1H1H -- 1H1H 1H1H 1H1H 2H2H 2H2H
부착성adhesiveness 크로스컷팅crosscutting ASTM D3359ASTM D3359 100/100100/100 98/10098/100 -- 70/10070/100 -- 80/10080/100 80/10080/100 55/10055/100 100/100100/100 98/10098/100
충격성impact 5/8inch, 30cm, 500g5/8inch, 30cm, 500g ASTM D2794ASTM D2794 박리 및 깨짐없음No peeling and cracking -- 깨짐fracture -- 깨짐fracture 깨짐fracture 깨짐fracture 박리 및 깨짐없음No peeling and cracking
내마모성wear resistance 낙사 Test, 마모계수 40 이상일것Falling test, abrasion coefficient must be more than 40 ASTM D968ASTM D968 8585 8080 -- 5050 -- 6060 5555 8080 8585 7070
내세제성detergent resistance 3% 중성세제, 72시간3% neutral detergent, 72 hours ASTM D2248ASTM D2248 부풀음 및 박리 없음No swelling and peeling -- 부풀음 및 박리 없음No swelling and peeling -- 박리exfoliation 부풀음 및 박리 없음No swelling and peeling
내산성acid resistance 10% 염산, 15분 침적10% hydrochloric acid, 15 min soak AAMA 2605AAMA 2605 부풀음 및 변색없음No swelling or discoloration -- 부풀음 및 변색없음No swelling or discoloration -- 부풀음 및 변색없음No swelling or discoloration
내염수분무성salt spray resistance 5% NaCl, 4000시간5% NaCl, 4000 hours ASTM B117 ASTM B117 Rating 8Rating 8 Rating 7Rating 7 -- Rating 7Rating 7 -- Rating 5Rating 5 Rating 7Rating 7 Rating 7Rating 7 Rating 8Rating 8 Rating 7Rating 7
내후성weather resistance 촉진 내후성 3000 시간Accelerated weathering 3000 hours ASTM D2244ASTM D2244 △E 5 이내△E within 5 -- △E 5 이내△E within 5 -- △E 5 이내△E within 5 △E 7ΔE 7
상기 표 2를 참고하면, 결합성 충진재의 입자크기 즉, 결합성 충진재의 코어로 구성되는 PVDF 구형 입자의 크기가 큰 경우에는, 코팅층을 형성하는 가열건조단계에서 충분히 결합성을 향상시키기 못하고, 부착력이 다소 떨어지는 문제가 있음을 확인할 수 있다.Referring to Table 2, when the particle size of the bonding filler, that is, the size of the PVDF spherical particles composed of the core of the bonding filler is large, the bonding property cannot be sufficiently improved in the heating and drying step of forming the coating layer, and the adhesive strength It can be seen that there is a somewhat falling problem.
한편, PVDF 분말의 크기가 너무 작으면 코팅제 조성물의 점도 증가로 코팅제로 활용하기 어려워진다. 즉, 굴곡진 표면이나, 어떤 피코팅면에도 바르기가 어려워 작업성이 떨어진다. PVDF 분말의 크기가 너무 크면, 가열건조과정에서 충분히 경화되지 못하여 코팅층의 경도, 충격성이 떨어지고, 약한 코팅층으로 형성됨에 따라, 내세제성과 내염수분무성이 떨어지는 것을 확인할 수 있다.On the other hand, if the size of the PVDF powder is too small, it becomes difficult to utilize it as a coating agent due to an increase in the viscosity of the coating composition. That is, it is difficult to apply to a curved surface or any surface to be coated, and workability is poor. If the size of the PVDF powder is too large, it is not hardened sufficiently during the heating and drying process, and thus the hardness and impact properties of the coating layer are reduced.
PVDF 분말을 적게 첨가한 비교예 5의 경우, 실시예들과 대비하여, 경도, 충격성이 크게 떨어짐을 확인할 수 있다. 특히, 내마모성이 크게 저하되므로, 장기 내구력은 떨어지는 것을 알 수 있다. PVDF 분말을 과량 첨가하는 경우에는, 점도가 높은 코팅제 조성물로 형성됨에 따라, 작업성이 떨어지고, 부착력이 떨어지며, 경도 또한 낮음을 확인할 수 있다.In the case of Comparative Example 5 in which a small amount of PVDF powder was added, compared to Examples, it can be seen that hardness and impact properties are greatly reduced. In particular, since the abrasion resistance is greatly reduced, it can be seen that the long-term durability is lowered. When an excessive amount of PVDF powder is added, it can be confirmed that workability is deteriorated, adhesion is deteriorated, and hardness is also low, as the coating agent composition has a high viscosity.
비교예 7의 경우에는, 코팅층 자체의 물성에는 실시예와 큰 차이가 없으나, 하이드록시아파타이트를 첨가하지 않음에 따라, 바이러스 사멸 기능 및 세균 사멸 기능이 없는 문제가 있다. 한편, 비교예 8의 경우, 다른 물성 대비 내후성이 떨어지는 문제가 있음을 확인할 수 있다.In the case of Comparative Example 7, there is no significant difference in physical properties of the coating layer itself from those of the examples, but there is a problem in that there is no function to kill viruses and bacteria because hydroxyapatite is not added. On the other hand, in the case of Comparative Example 8, it can be confirmed that there is a problem of poor weather resistance compared to other physical properties.
[바이러스 사멸 기능 및 세균 사멸 기능 평가][Evaluation of virus killing function and bacterial killing function]
도 2는 본 발명에 따른 도어하드웨어(클리어코팅)에 관한 바이러스 사멸 시험성적서이고, 도 3은 본 발명에 따른 도어하드웨어(유색 도장)에 관한 바이러스 사멸 시험성적서이다.2 is a virus killing test report on door hardware (clear coating) according to the present invention, and FIG. 3 is a virus killing test report on door hardware (colored paint) according to the present invention.
즉, 도 2는 실시예 1의 코팅제 조성물을 강판 표면에 코팅한 후에 진행되었으며, 도 3은 실시예 2의 코팅제 조성물을 강판 표면에 코팅한 후 진행되었다.That is, FIG. 2 was performed after the coating agent composition of Example 1 was coated on the surface of the steel sheet, and FIG. 3 was performed after the coating agent composition of Example 2 was coated on the surface of the steel sheet.
도 2 및 3을 참고하면, 실시예 1과 2의 코팅제 조성물을 이용하여 코팅층을 형성한 코팅층의 표면에서 코로나-19 바이러스(SARS-CoV-2 바이러스)의 사멸 효과가 있음을 확인할 수 있다. 바이러스 감소율은 30분 경과 후, 99.988% 이상의 감소율이 확인되었고, 60분 경과 후에는 99.99% 이상의 감소율이 확인되었다.Referring to FIGS. 2 and 3, it can be confirmed that there is an effect of killing the corona-19 virus (SARS-CoV-2 virus) on the surface of the coating layer formed using the coating composition of Examples 1 and 2. As for the virus reduction rate, a reduction rate of 99.988% or more was confirmed after 30 minutes, and a reduction rate of 99.99% or more was confirmed after 60 minutes.
도 4는 본 발명에 따른 도어하드웨어(클리어코팅)에 관한 세균 사멸 시험성적서이고, 도 5는 본 발명에 따른 도어하드웨어(유색 도장)에 관한 세균 사멸 시험성적서이다.4 is a bacterial killing test report on door hardware (clear coating) according to the present invention, and FIG. 5 is a bacterial killing test report on door hardware (colored paint) according to the present invention.
마찬가지로 실시예 1과 2의 코팅제 조성물을 이용하여 문고리를 제조한 후, 이를 시험 의뢰하였다. 검사 의뢰 결과, 대장균, 황색포도상구균 및 녹농균에 대한 살균 효과를 확인할 수 있었다. 세균 감소율은 99.9% 이상인 것으로 확인되었다.Similarly, after manufacturing a doorknob using the coating composition of Examples 1 and 2, it was requested for testing. As a result of the test request, the bactericidal effect on Escherichia coli, Staphylococcus aureus, and Pseudomonas aeruginosa was confirmed. The bacterial reduction rate was confirmed to be 99.9% or more.

Claims (5)

  1. 바이러스 및/또는 세균 사멸 기능을 갖는 도어하드웨어로서,As door hardware having a virus and / or bacterial killing function,
    금속 재질의 성형체; 및A molded body made of metal; and
    상기 금속 재질의 성형체의 표면에 형성된 코팅층;a coating layer formed on the surface of the molded body made of metal;
    을 포함하고,including,
    상기 코팅층은 불화 폴리비닐리덴(PVDF, Polyvinylidenefluoride) 분말 50 내지 65 중량%, 하이드록시아파타이트(Hydroxyapatite, HA) 3 내지 7 중량%, 결합성 충진재 1 내지 5 중량% 및 잔부의 용매를 포함하는 코팅제 조성물로 형성되며, The coating layer is a coating composition comprising 50 to 65% by weight of polyvinylidenefluoride (PVDF) powder, 3 to 7% by weight of hydroxyapatite (HA), 1 to 5% by weight of a binding filler and the remainder solvent is formed by
    상기 결합성 충진재는, 1 내지 3㎛(마이크로미터)의 평균 직경을 갖는 불화 폴리비닐리덴 구형 입자 표면에 0.1 내지 0.5 ㎛(마이크로미터) 두께의 카나우바 왁스 코팅층이 형성된,The bonding filler is formed with a carnauba wax coating layer having a thickness of 0.1 to 0.5 μm (micrometer) on the surface of polyvinylidene fluoride spherical particles having an average diameter of 1 to 3 μm (micrometer),
    바이러스 및/또는 세균 사멸 기능을 갖는 도어하드웨어.Door hardware with virus and/or bacterial killing function.
  2. 제1항에 있어서,According to claim 1,
    상기 코팅제 조성물은 상기 코팅제 조성물의 전체 중량을 기준으로 유색안료 및 백색안료를 0.1 내지 3 중량%로 포함하는 바이러스 및/또는 세균 사멸 기능을 갖는 도어하드웨어.Door hardware having a virus and / or bacterial killing function, wherein the coating composition comprises 0.1 to 3% by weight of a colored pigment and a white pigment based on the total weight of the coating composition.
  3. 제1항에 있어서,According to claim 1,
    상기 도어하드웨어는 코로나-19 바이러스(SARS-CoV-2 바이러스)에 대한 사멸 기능을 가지며,The door hardware has a killing function for the Corona-19 virus (SARS-CoV-2 virus),
    상기 도어하드웨어는 대장균(Escherichia coli), 황색포도상구균(Staphylococcus aureus) 및 녹농균(Pseudomonas aeruginosa)으로 이루어진 군에서 선택된 하나 이상에 대한 사멸 기능을 갖는 바이러스 및/또는 세균 사멸 기능을 갖는 도어하드웨어.The door hardware has a virus and / or bacterial killing function having a function of killing at least one selected from the group consisting of Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa . Door hardware.
  4. 제1항에 있어서,According to claim 1,
    상기 도어하드웨어는,The door hardware,
    손잡이(Door knob), 도어 힌지(Door hinge), 도어 록(Door lock), 모티스 록(Mortise lock), 컵핸들(Cup handle), 튜블러 레버 록(Tublar lever lock), 인테그랄 레버 록(Integral lever lock), 실린더 록(Cylinder lock), 데드 록(Dead lock), 도어 클로저(Door closer), 키(Key), 키 실린더(Key cylinder), 패닉 디바이스(Panic device), 오목 손잡이(Recessed pull), 슬라이딩 록(Sliding lock), 도어 스토퍼(Door stop), 풀핸들 (Pull handle), 전자도어록 (Electronic lock), 디지털 도어록(Digital door lock)으로 이루어진 군에서 선택된 어느 하나인,Door knob, door hinge, door lock, mortise lock, cup handle, tubular lever lock, integral lever lock lock), cylinder lock, dead lock, door closer, key, key cylinder, panic device, recessed pull, Any one selected from the group consisting of a sliding lock, a door stop, a pull handle, an electronic lock, and a digital door lock,
    바이러스 및/또는 세균 사멸 기능을 갖는 도어하드웨어.Door hardware with virus and/or bacterial killing function.
  5. 제1항에 따른 바이러스 및/또는 세균 사멸 기능을 갖는 도어하드웨어의 제조방법으로서, A method of manufacturing door hardware having a virus and / or bacterial killing function according to claim 1,
    (a) 금속 재질의 성형체를 제조하는 단계;(a) manufacturing a molded body made of metal;
    (b) 상기 금속 재질의 성형체 표면을 초음파 세척한 후, 에어(Air) 세척한 다음 도장용 지그에 장착하는 단계;(b) cleaning the surface of the molded body made of metal with ultrasonic waves, then cleaning it with air, and then mounting it on a painting jig;
    (c) 상기 (b) 단계를 거친 금속 재질의 성형체 표면에 코팅제 조성물을 도포하는 단계; 및(c) applying a coating composition to the surface of the molded body made of metal after step (b); and
    (d) 상기 (c) 단계를 거친 금속 재질의 성형체를 210 내지 230℃의 온도에서 40 내지 50분간 가열건조하는 단계;(d) heating and drying the molded body made of metal after step (c) at a temperature of 210 to 230° C. for 40 to 50 minutes;
    를 포함하고,including,
    상기 (c) 단계의 상기 코팅제 조성물은,The coating composition of step (c),
    ㄱ) 1 내지 3㎛(마이크로미터)의 평균 직경을 갖는 불화 폴리비닐리덴 구형 입자를 70 내지 78℃의 온도로 10 내지 20분간 가열한 카나우바 왁스와 혼합하여 50 내지 100 rpm의 속도의 믹서로 섞는 단계,a) Polyvinylidene fluoride spherical particles having an average diameter of 1 to 3 μm (micrometers) are mixed with carnauba wax heated at a temperature of 70 to 78 ° C. for 10 to 20 minutes and mixed with a mixer at a speed of 50 to 100 rpm mixing step,
    ㄴ) 상기 ㄱ) 단계에서 얻어진 혼합물을 금속 트레이에 2 내지 5 mm의 두께로 펼친 후, 5 내지 10℃의 온도의 바람으로 건조시켜 결합성 충진재를 제조하는 단계 및b) preparing a binding filler by spreading the mixture obtained in step a) on a metal tray to a thickness of 2 to 5 mm and then drying with wind at a temperature of 5 to 10 ° C; and
    ㄷ) 불화 폴리비닐리덴(PVDF, Polyvinylidenefluoride) 분말 50 내지 65 중량%, 하이드록시아파타이트(Hydroxyapatite, HA) 3 내지 7 중량% 및 상기 결합성 충진재 1 내지 5 중량%를 잔부의 용매에 넣어 혼합하여 코팅제 조성물을 제조하는 단계c) 50 to 65% by weight of polyvinylidene fluoride (PVDF) powder, 3 to 7% by weight of hydroxyapatite (HA), and 1 to 5% by weight of the bonding filler are mixed in the remaining solvent to form a coating agent preparing the composition
    를 거쳐 제조된 것인 바이러스 및/또는 세균 사멸 기능을 갖는 도어하드웨어의 제조방법.A method for manufacturing door hardware having a function of killing viruses and/or bacteria.
PCT/KR2022/009879 2022-02-25 2022-07-07 Door hardware having virus and bacteria killing function and method for manufacturing same WO2023163290A1 (en)

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KR200371730Y1 (en) * 2004-09-01 2005-01-07 오은성 Antibiosis knob for door lock
KR20150047222A (en) * 2013-10-24 2015-05-04 삼성염직(주) Manufacturing methode of fabrics with super water-repellent function and fabric by manufactured thereof
KR20160148760A (en) * 2015-06-16 2016-12-27 주식회사 해넷 A mixed filter having a multi-layer structure prepared by laminating an antimicrobial sediment filter matrial and an adsorbing filter material and a composite filter using the mixed filter
KR20170022159A (en) * 2015-08-19 2017-03-02 윤병만 A DoorLock Coating Agent Having Antimicrobial Function
KR102339843B1 (en) * 2021-04-15 2021-12-14 데코민 주식회사 Bio antibacterial handle with excellent antibacterial properties, and method for manufacturing the same

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WO2021235873A1 (en) 2020-05-20 2021-11-25 주식회사 아모라이프사이언스 Anti-viral coating composition, and method for fixing anti-viral fusion protein to surfaces
KR102348646B1 (en) 2021-05-31 2022-01-12 흥덕산업 주식회사 Organic-inorganic hybrid antibacterial concrete block with surface layer using acryl resin and antibacterial artificial aggregate and the manufacturing method thereof

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Publication number Priority date Publication date Assignee Title
KR200371730Y1 (en) * 2004-09-01 2005-01-07 오은성 Antibiosis knob for door lock
KR20150047222A (en) * 2013-10-24 2015-05-04 삼성염직(주) Manufacturing methode of fabrics with super water-repellent function and fabric by manufactured thereof
KR20160148760A (en) * 2015-06-16 2016-12-27 주식회사 해넷 A mixed filter having a multi-layer structure prepared by laminating an antimicrobial sediment filter matrial and an adsorbing filter material and a composite filter using the mixed filter
KR20170022159A (en) * 2015-08-19 2017-03-02 윤병만 A DoorLock Coating Agent Having Antimicrobial Function
KR102339843B1 (en) * 2021-04-15 2021-12-14 데코민 주식회사 Bio antibacterial handle with excellent antibacterial properties, and method for manufacturing the same

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