KR102440351B1 - Marble protection film and film cutting device and marble coating construction method using them - Google Patents

Abstract

Disclosed is a marble coating construction method. The marble coating construction method comprises: a marble polishing process of polishing a surface of marble; a marble gloss-applying process of applying gloss to the surface of the marble; and a film attachment process of attaching a protective film for protecting a marble surface to one surface of the marble. The film attachment process comprises: a step of cleaning the one surface of the marble; a step of removing moisture remaining on the one surface of the marble; a step of cutting a protective film into a shape corresponding to the one surface of the marble; a step of applying an aqueous surfactant solution to the one surface of the marble and an adhesive surface of the protective film; a step of mounting the protective film on the one surface of the marble and removing moisture from an upper surface of the protective film; a primary cutting step of cutting an edge of the protective film according to an edge of the one surface of the marble; a step of moving air bubbles and the aqueous surfactant solution, formed between the one surface of the marble and the adhesive surface of the protective film, to the edge of the protective film using a scraper so that the air bubbles and the aqueous surfactant solution are discharged; a secondary cutting step of cutting the edge of the protective film according to an edge of the one surface of the marble; and a precise cutting step of cutting the edge of the protective film according to the edge of the one surface of the marble after a certain period of time has elapsed. According to the present invention, the protective film can protect marble against external shock, fires, germs, and the like.

Description

Marble protective film and protective film cutting device and marble coating construction method using them {MARBLE PROTECTION FILM AND FILM CUTTING DEVICE AND MARBLE COATING CONSTRUCTION METHOD USING THEM}

The present invention relates to a marble protective film, a protective film cutting device, and a method for coating marble using the same.

Natural marble and artificial marble, which are used a lot as interior materials in recent years, have excellent texture, beautiful appearance, easy processability, excellent weather resistance, and high strength, so they can be used in various applications such as table tops, sink tops, washbasins, furniture, flooring, and wall materials. It is used as an interior material for a purpose.

As such, since marble is mainly used as a material for products that people frequently come into contact with in real life, there is a high possibility that the surface of the marble may be scratched or damaged in part of the marble. In addition, there is a high possibility that marble is contaminated by frequent contact with foreign substances.

Accordingly, various methods for coating the surface of marble have been developed in order to prevent the above-mentioned problems from occurring. Basically, the coating materials that are coated on the surface of the marble should be able to protect the marble from physical impact. In addition, when marble is used in a product positioned adjacent to a fire, such as a sink top plate or a table, flame retardancy may be required to protect the marble weak against heat. In addition, since marble used for sink tops, washbasins, etc. is frequently touched by users and requires a high level of hygiene, coating materials for coating the surface of marble may require antibacterial functionality.

Republic of Korea Patent Publication No. 10-2205517

The present invention provides a protective film capable of protecting marble from external impact, fire, bacteria, and the like, and a marble coating construction method for coating the marble by attaching it to the marble.

The present invention provides a protective film cutting device capable of cutting the edge of the protective film according to the edge of the marble, and a marble coating construction method using the same.

Marble coating construction method according to an aspect of the present invention is a marble polishing process for polishing the surface of the marble; Marble polishing process to give the surface of marble a luster; Including; a film attachment process of attaching a protective film to one surface of the marble to protect the surface of the marble, wherein the film attachment process includes: washing one surface of the marble; removing the remaining water on one surface of the marble; cutting the protective film into a shape corresponding to one surface of the marble; applying an aqueous surfactant solution to one surface of the marble and the adhesive surface of the protective film; Seating the protective film on one surface of the marble and removing the moisture adhered to the upper surface of the protective film; A first cutting step of cutting the edge of the protective film in accordance with the edge of the one surface of the marble; discharging the bubbles formed between one surface of the marble and the adhesive surface of the protective film using a scraper and moving the aqueous surfactant solution to the edge of the protective film; a secondary cutting step of cutting the edge of the protective film according to the edge of one surface of the marble; and a precision cutting step of cutting the edge of the protective film according to the edge of one surface of the marble after a certain period of time has elapsed.

The marble polishing process comprises the steps of maintaining a covering tape; polishing one surface of the marble using a polishing pad; and cleaning debris generated by polishing using the polishing pad.

The marble polishing process may include polishing one surface of the marble using a polishing pad having a smaller particle size than the polishing pad used in the marble polishing process.

The protective film includes a finishing layer formed of a composition for a finishing material with a flame retardant and an antibacterial agent, and the flame retardant is (5-Ethyl-2-methyl-1,3,2-dioxaphosphorinan-5-yl)methyl dimethyl phosphonate P- 65 to 75% by weight of oxide; Bis[(5-ethyl-2-methyl-1,3,2-dioxaphosphorinan-5-yl)methyl] methyl phosphonate P,P'-dioxide 20 to 30 wt %; and 5 wt% of polyethylene glycol, wherein the antibacterial agent is 75 to 90 wt% of 1-Phenoxy-2-propanol; and 4,5-Dichloro-2-octyl-isothiazolone in an amount of 10 to 25% by weight, and the composition for the finishing material may include 0.5 to 1 part by weight of the antibacterial agent based on 100 parts by weight of the flame retardant.

At least one of the first cutting step, the second cutting step, and the precision cutting step is performed using a protective film cutting device, wherein the protective film cutting device is a protective film side roller that can be disposed on the upper surface of the protective film ; a marble side roller that can be disposed on the lower surface of the marble; a first roller frame to which the protective film-side roller is rotatably coupled; a second roller frame to which the marble-side roller is rotatably coupled; a lift for adjusting a separation distance between the first roller frame and the second roller frame; and a cutter blade support fixed to a rear end of one of the first roller frame and the second roller frame, and to which a cutter blade for cutting the edge of the protective film is coupled.

According to the present invention, the protective film has excellent flame-retardant properties, can delay combustion in case of fire, reduce smoke generation, and exhibit excellent antibacterial properties while improving glossiness and smoothness of the surface to have excellent aesthetic properties. , By coating such a protective film on marble, it is possible to protect the marble from physical impact and achieve flame retardant and antibacterial effects at the same time.

According to the present invention, the marble coating construction method is a protective film cutting device that can cut the edge of the protective film to a certain thickness while moving stably along the edge of the marble in a movably fixed state on the marble on which the protective film is seated. Therefore, regardless of the skill of the user, anyone can finish the protective film edge with the marble edge with great accuracy.

1 is a flowchart of a marble coating construction method according to an embodiment of the present invention.
2 is a flowchart of a film attaching process according to an embodiment of the present invention.
3 is a cross-sectional view of a protective film attached to marble according to the film attachment process of the present invention.
Figure 4 is a view showing a protective film cutting device for performing the marble coating construction method according to an embodiment of the present invention.
FIG. 5 is a view illustrating a state of use of the protective film cutting device of FIG. 4 .

The configuration shown in the embodiments and drawings described in this specification is only a preferred example of the disclosed invention, and there may be various modifications that can replace the embodiments and drawings of the present specification at the time of filing of the present application.

The same reference numbers or reference numerals in each drawing in this specification indicate parts or components that perform substantially the same functions. The shapes and sizes of elements in the drawings may be exaggerated for clear explanation.

The terminology used herein is used to describe the embodiments, and is not intended to limit and/or limit the disclosed invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In this specification, terms such as “comprise” or “have” are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, but one or more other features It does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

As used herein, terms including ordinal numbers such as “first”, “second”, etc. may be used to describe various components, but the components are not limited by the terms, and the terms are one It is used only for the purpose of distinguishing a component from other components. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component. The term “and/or” includes any combination of a plurality of related listed items or any of a plurality of related listed items.

The terms "upper", "lower", "upper", "lower" and the like used below are defined based on the drawings, and the shape and position of each component is not limited by these terms.

Hereinafter, an embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a flowchart of a marble coating construction method according to an embodiment of the present invention. 2 is a flowchart of a film attaching process according to an embodiment of the present invention. 3 is a cross-sectional view of a protective film attached to marble according to the film attachment process of the present invention.

1 to 3 , the marble coating construction method may include a marble polishing process 1000 , a marble polishing process 2000 , and a film attaching process 3000 . On the other hand, marble may correspond to natural marble or artificial marble. The protective film 100 attached to the marble may be referred to as coated marble. In other words, the coated marble may include marble and a protective film 100 attached to the top surface of the marble.

Marble polishing process 1000 may include the steps of retaining with a covering tape, polishing one surface (eg, upper surface) of marble using a polishing pad, and cleaning debris generated by polishing using a polishing pad. can

The steps of polishing one surface (eg, the upper surface) of the marble and cleaning the debris generated by polishing using a polishing pad may be repeated multiple times.

For example, the marble polishing process includes the steps of retaining with a covering tape, polishing the upper surface of the marble using a first polishing pad, and cleaning debris generated by polishing using the first polishing pad; 2 Polishing the upper surface of the marble using a polishing pad, cleaning the debris generated by polishing using a second polishing pad, polishing the upper surface of the marble using a third polishing pad, a third Cleaning the debris generated by polishing using a polishing pad, polishing the upper surface of the marble using a fourth polishing pad, cleaning debris generated by polishing using the fourth polishing pad, a fifth Polishing the upper surface of the marble using a polishing pad, cleaning debris generated by polishing using a fifth polishing pad, polishing the upper surface of the marble using a sixth polishing pad, and a sixth polishing Cleaning the debris generated by polishing using a pad, polishing the upper surface of the marble using the seventh polishing pad, cleaning debris generated by polishing using the seventh polishing pad, and the eighth polishing It may include polishing the upper surface of the marble using a pad, and cleaning debris generated by polishing using the eighth polishing pad.

면적 안에 분포하는 연마 입자의 개수가 100개임을 의미할 수 있다.the first polishing pad may have a roughness of 50 grit (or "room"), the second polishing pad may have a roughness of 100 grit (or "room"), the third polishing pad may have a roughness of 200 grit (or "room"), the fourth polishing pad may have a roughness of 400 grit (or "room"), the fifth polishing pad may have a roughness of 800 grit (or "room"), the sixth polishing pad may have a roughness of 1000 grit (or "room"), The seventh polishing pad may have a roughness of 1500 grits (or “rooms”), and the eighth polishing pad may have a roughness of 2000 grits (or “rooms”). The grit (or "room") is a unit representing roughness and may mean the number of abrasive particles distributed in an area of 1 inch in width and 1 inch in length. For example, 100 grit (or "room") is

It may mean that the number of abrasive particles distributed in the area is 100.

The marble polishing process 2000 may include polishing one surface (eg, an upper surface) of marble using a polishing pad, and cleaning debris generated by the polishing operation. The polishing pad used in the marble polishing process may have a smaller particle size than the polishing pad used in the marble polishing process.

The steps of polishing one surface (eg, the top surface) of marble and cleaning the debris generated by the polishing operation may be repeated multiple times.

For example, the marble polishing process includes polishing one surface (eg, the upper surface) of marble using the ninth polishing pad, cleaning debris generated by the polishing operation using the ninth polishing pad, and marble The polishing process includes the steps of polishing one surface (eg, the upper surface) of marble using a tenth polishing pad, cleaning the debris generated by the polishing operation using the tenth polishing pad, and the marble polishing process is an 11th Polishing one surface (eg, the upper surface) of marble using a polishing pad, cleaning debris generated by the polishing operation using the 11th polishing pad, and marble polishing process using the 12th polishing pad It may include polishing one surface (eg, an upper surface) of the marble, and cleaning debris generated by the polishing operation using the twelfth polishing pad.

the ninth polishing pad may have a roughness of 3000 grit (or "room"), the tenth polishing pad may have a roughness of 5000 grit (or "room"), The eleventh polishing pad may have a roughness of 8000 grit (or “room”), and the twelfth polishing pad may have a roughness of 10000 grit (or “room”).

The protective film 100 may be attached to one surface (eg, an upper surface) of the marble through the film attaching process 3000 . The protective film 100 may protect the surface of the marble from external impact.

The film attaching process 3000 includes the steps of cleaning one surface (eg, the upper surface) of the marble, removing moisture remaining on one surface of the marble, and cutting the protective film 100 into a shape corresponding to the one surface of the marble. (hereinafter, the cutting step) 3100, and the step of applying an aqueous surfactant solution on one surface of the marble and the adhesive surface of the protective film 100 (hereinafter, the surfactant application step) 3200, and one surface of the marble (eg: The step of seating the protective film 100 on one surface of the marble so that the adhesive surface of the protective film 100 faces the upper surface) and removing the moisture adhered to the upper surface of the protective film 100 (hereinafter, the film mounting step) 3300 and , the first cutting step 3400 of cutting the edge of the protective film 100 to match the edge of the one surface of the marble, and the bubbles formed between the one surface of the marble and the adhesive surface of the protective film 100 using a scraper and the above The step of discharging the aqueous surfactant solution by moving it to the edge of the protective film 100 (hereinafter, the bubble discharge step) 3500, and the secondary cutting step of cutting the edge of the protective film 100 to match the edge of one surface of the marble (3600) and a precision cutting step (3700) of cutting the edge of the protective film 100 to match the edge of one surface of the marble after a certain period of time (eg, 24 hours or more and 48 hours or less) has elapsed.

In the step of cutting the protective film 100 into a shape corresponding to one surface of the marble (or "cutting step"), the protective film 100 may be cut to have a larger area than the upper surface of the marble. The upper surface of the marble may be disposed inside the cut protective film 100 . Through this, the edge of the protective film 100 may be continuously modified to match the edge of the marble in the first cutting step 3400 , the second cutting step 3600 , and the precision cutting step 3700 to be performed later.

The surfactant aqueous solution used in the surfactant application step 3200 may correspond to a household detergent, but is not limited thereto. The surfactant applied to the marble and the protective film 100 can prevent the bubble from coming out because the adhesive surface is completely adhered to the upper surface of the marble in the step of discharging the bubbles later.

In the first cutting step 3400 , a predetermined excess of the edge of the protective film 100 in a state of being adhered to the upper surface of the marble may be removed. However, the protective film 100 cut in the first cutting step may have an edge margin smaller than the edge margin of the protective film 100 in a state where the cutting step is completed. This is to prepare for a case in which the protective film 100 is moved from a seated position in the film seating step 3300 due to friction between the scraper and the protective film 100 in the bubble discharging step 3500 .

In the bubble discharging step 3500 , bubbles may be discharged together with the surfactant applied in the surfactant application step. At the same time, the adhesive surface of the protective film 100 that was spaced apart from the upper surface of the marble by the surfactant and air bubbles may be completely adhered and/or adhered to the upper surface of the marble.

The edge of the protective film 100 adhered and/or attached to the upper surface of the marble so as not to move any more in the secondary cutting step 3600 may be cut to match the edge of one surface of the marble.

In the precision cutting step 3700 , an edge excess of the protective film 100 remaining after the secondary cutting step may be removed. As such, through the first cutting step, the second cutting step, and the precision cutting step, the edge of the protective film 100 may completely coincide with the edge of the marble.

Meanwhile, the protective film 100 may include an adhesive layer 110 forming an adhesive surface (or a lower surface), and a substantially transparent transparent coating layer 120 disposed on the upper surface of the adhesive layer 110 .

The adhesive layer 110 may be composed of a conventionally used sheet adhesive, which is a common means for those skilled in the art, and detailed description thereof will be omitted.

The transparent coating layer 120 is, based on 100 parts by weight of a mixture of aliphatic polyaspartic ester and aliphatic polyisocyanate, alumina powder, silica powder, zirconia powder, magnesium sulfate powder, elvan powder, marble 20 to 50 parts by weight of one or a mixture of two or more selected from the group consisting of powder and granite powder; It may comprise 1 to 10 parts by weight of one or more mixtures selected from the group consisting of fluorinated wax, urethane beads, and acrylic beads.

The transparent coating layer 120 is obtained from a mixture of an aliphatic polyaspartic ester and an aliphatic polyisocyanate and includes a binder that binds other components such as glass beads, so that yellowing is different from conventional epoxy or aromatic polyurea. It rarely occurs, and due to the aliphatic nature, color, texture, and gloss are further improved.

The aliphatic polyaspartic ester may be represented by Formula 1 below.

(In the above formula, R ¹ and R ² are each independently an alkyl group having 1 to 10 carbon atoms, R ³ is a branched chain, unbranched chain or cyclic aliphatic group having 1 to 20 carbon atoms, and n is 2 to 4) .

A preferred example of the aliphatic polyaspartic esters represented by Formula 1 is polyaspartic ester amines represented by Formula 2 below.

In addition, the average amine equivalent weight of the aliphatic polyaspartic ester may be 279 to 333, and two or more aliphatic polyaspartic esters may be mixed and added to achieve the numerical range. For reference, the lower the amine equivalent, the more active the reactivity, and the shorter the pot life, while the higher the equivalent, the longer the pot life.

The aliphatic polyisocyanate refers to any aliphatic organic compound containing two or more reactive isocyanate groups (-NCO) in a single molecule. Aliphatic polyisocyanates particularly useful in the present invention are hexamethylene diisocyanate (HDI), pentamethylene diisocyanate (PDI), 2,2,4-trimethyl-1,6-hexamethylene diisocyanate (2,2,4-trimethyl). -1,6-hexamethylene diisocyanate), 2,4,4-trimethyl-1,6-hexamethylene diisocyanate (2,4,4-trimethyl-1,6-hexamethylene diisocyanate), dodecamethylene diisocyanate ), 1,4-diisocyanate cyanocyclohexane (1,4-diisocyanatocyclohexane), isophorone diisocyanate (IPDI), 2,4'-diisocyanato-dicyclohexylmethane (2,4'-diisocyanato- dicyclohexyl methane) and 4,4'-diisocyanato-dicyclohexyl methane (4,4'-diisocyanato-dicyclohexyl methane) is one or a mixture of two or more selected from the group consisting of.

On the other hand, the aliphatic polyaspartic ester and the aliphatic polyisocyanate are preferably mixed in a weight ratio of 1:1 to 3: 1 from the viewpoint of controlling the rigidity and viscoelasticity of the network structure of the binder formed by their reaction.

The at least one inorganic powder selected from the alumina powder, silica powder, zirconia powder, magnesium sulfate powder, elvan powder, marble powder and granite powder is 20 based on 100 parts by weight of a mixture of aliphatic polyaspartic ester and aliphatic polyisocyanate. It is contained in an amount of ~ 50 parts by weight, and as a filler and/or extender, the fluidity of the composition for obtaining the transparent coating layer is adjusted, and the cost per material volume in the volume of the transparent coating layer obtained after curing can be made cheaper.

In addition, the transparent coating layer includes 1 to 10 parts by weight of at least one of fluorinated wax, silicone beads, and urethane beads based on 100 parts by weight of a mixture of aliphatic polyaspartic ester and aliphatic polyisocyanate. Antifouling properties can be improved by imparting hydrophobicity to the film.

In addition, the transparent coating layer may further include 1 to 5 parts by weight of haepo-seok powder based on 100 parts by weight of a mixture of aliphatic polyaspartic ester and aliphatic polyisocyanate, and the haepo-seok is a component for synthesizing a binder. It serves to prevent precipitation due to the difference in specific gravity between (aliphatic polyaspartic ester and aliphatic polyisocyanate) and other components.

Furthermore, the transparent coating layer is one or more selected from the group consisting of polybutadiene (BR), synthetic polyisoprene (IR), natural rubber (NR), butadiene copolymer, isoprene copolymer, and ethylene/conjugated diene copolymer. , may further include 5 to 10 parts by weight based on 100 parts by weight of the mixture of the aliphatic polyaspartic ester and the aliphatic polyisocyanate.

The various elastomers and mixtures of these polymers not only allow other components to be uniformly dispersed in the binder, but also improve abrasion resistance and impact resistance of the graphic film for road surfaces according to the present invention.

In addition, in order to improve the tear resistance of the transparent coating layer, alpha-(2-amino methyl ethyl)-omega-(2-aminomethylethoxy)-poly(oxy() methyl-1,2-ethanediyl)) ((alpha-(2-Aminomethylethyl)-omega-(2-aminomethylethoxy)-poly(oxy(methyl-1,2-ethanediyl))), aliphatic polyaspartic ester 10 to 30 parts by weight based on 100 parts by weight of a mixture of an aliphatic polyisocyanate with alpha, alpha', alpha"-1,2,3-propanetriyl tris (omega-(2-aminomethyl to oxy)-poly-oxy (methyl-1,2-ethanediyl)) (Poly[oxy(methyl-1,2-ethanediyl)],.alpha.,.alpha.',.alpha.''-1,2 ,3-propanetriyltris[.omega.-(2-aminom,ethylethoxy) 1 to 5 parts by weight may be added based on 100 parts by weight of a mixture of aliphatic polyaspartic ester and aliphatic polyisocyanate.

Meanwhile, the protective film 100 may further include a finishing layer 130 disposed on the upper surface of the transparent coating layer 120 and exposed to the outside.

The finishing layer 130 is formed by coating a composition for a marble finishing material containing a flame retardant and an antibacterial agent on the upper surface of the transparent coating layer 120 , or a separately prepared finishing layer 130 is attached to the upper surface of the transparent coating layer 120 . can be The composition for the marble finishing material may be referred to as a finishing material composition.

The flame retardant is (5-Ethyl-2-methyl-1,3,2-dioxaphosphorinan-5-yl)methyl dimethyl phosphonate P-oxide 65 to 75% by weight; Bis[(5-ethyl-2-methyl-1,3,2-dioxaphosphorinan-5-yl)methyl] methyl phosphonate P,P'-dioxide 20 to 30 wt%; and 5 wt% of polyethylene glycol, wherein the antibacterial agent is 75 to 90 wt% of 1-Phenoxy-2-propanol; And 4,5-Dichloro-2-octyl-isothiazolone that contains 10 to 25% by weight, it provides a composition for a finishing material.

As used herein, the term “composition for a finishing material” refers to a composition used for manufacturing the finishing layer 130 .

"(5-Ethyl-2-methyl-1,2,3-dioxaphosphorinan-5-yl)methyl dimethyl phosphonate P-oxide or (5-Ethyl-2-methyl-1,3 ,2-dioxaphosphorinan-5-yl)methyl dimethyl phosphonate P-oxide" is a phosphorus-based compound, with a molecular formula C ₉ H ₂₀ O ₆ P ₂ , Cas number 41203-81-0, and represented by the following formula (3) can

"Bis[(5-ethyl-2-methyl-1,2,3-dioxaphosphorinan-5-yl)methyl]methyl phosphonate P,P'-dioxide or Bis[(5-ethyl) of the present invention -2-methyl-1,3,2-dioxaphosphorinan-5-yl)methyl] methyl phosphonate P,P'-dioxide" is a phosphorus-based compound, with the molecular formula C ₁₅ H ₃₁ O ₉ P ₃ , Cas number 42595 -45-9, and may be represented by the following formula (4).

"Polyethylene glycol" of the present invention is a compound of the molecular formula H(OCH ₂ CH ₂ ) _n OH, Cas number 25322-68-3.

The flame retardant of the present invention comprises 65 to 75 wt% of (5-Ethyl-2-methyl-1,3,2-dioxaphosphorinan-5-yl)methyl dimethyl phosphonate P-oxide; 20 to 30 wt% of the Bis[(5-ethyl-2-methyl-1,3,2-dioxaphosphorinan-5-yl)methyl] methyl phosphonate P,P'-dioxide; and 5 wt% of the polyethylene glycol, specifically, (5-Ethyl-2-methyl-1,3,2-dioxaphosphorinan-5-yl)methyl dimethyl phosphonate P-oxide 70 wt%, Bis [(5-ethyl-2-methyl-1,3,2-dioxaphosphorinan-5-yl)methyl] methyl phosphonate P,P'-dioxide 25% by weight, and polyethylene glycol 5% by weight.

"1-Phenoxy-2-propanol or 1-Phenoxy-2-propanol" of the present invention has a molecular formula C ₉ H ₁₂ O ₂ , Cas number 770-35-7, and may be represented by the following Chemical Formula 5.

"4,5-dichloro-2-octyl-isothiazolone or 4,5-Dichloro-2-octyl-isothiazolone" of the present invention is a molecular formula C ₁₁ H ₁₇ Cl ₂ NOS, Cas number 64359-81-5, It may be represented by the formula (6).

The antibacterial agent of the present invention is 1-Phenoxy-2-propanol 75 to 90% by weight; and 10 to 25% by weight of the 4,5-Dichloro-2-octyl-isothiazolone, specifically, 80% by weight of 1-Phenoxy-2-propanol and 20% by weight of 4,5-Dichloro-2-octyl-isothiazolone may include.

The composition for a finishing material of the present invention is to include 0.5 to 1 parts by weight of an antibacterial agent based on 100 parts by weight of the flame retardant. When the antimicrobial agent is included in less than 0.5 parts by weight, the antibacterial activity is not sufficiently exhibited, and when the antibacterial agent is included in more than 1 part by weight, the physical properties of the melamine resin may be affected, so that the coating of the melamine resin may not be performed preferably. This is a result of the fact that the pH of the antibacterial agent itself is relatively low, and when it is included in more than 1 part by weight, the time required for the melamine coating to be properly formed by promoting the curing of the finishing layer is not sufficiently given. In a specific embodiment of the present invention, 100 parts by weight of the flame retardant and 0.5 to 1 parts by weight of the antibacterial agent The surface of the finishing layer prepared by using a composition for a finishing material mixed with 100 parts by weight of the flame retardant and the antibacterial agent 3 compared to the smooth surface of Example 1 It was confirmed that the finishing layer of Comparative Example 1 prepared by using a composition for finishing materials mixed by weight was coated with cracks on the surface, so that it was not smooth and had an unclean appearance (Experimental Example 1).

The composition for a finishing material of the present invention may be characterized in that it is smoothly coated on the finishing layer to impart antibacterial and flame retardant properties.

The flame retardant property refers to a property capable of preventing or delaying the expansion of the initial combustion of a fire by chemically or physically treating a combustible material to prevent it from being easily burned. Marble is a material that is weak to heat, and in the case of artificial marble in particular, it can emit toxic gas in the event of a fire, so proper flame retardant treatment is essential. Accordingly, in the present invention, a flame retardant solution capable of suppressing the spread of fire and reducing the emission of harmful gas components when applied as a building material in the future by imparting flame retardant properties to the finishing layer has been developed.

The antibacterial activity means an activity that inhibits the growth of bacteria and fungi, for example, Escherichia coli , Pseudomonas aeruginosa , Staphylococcus aureus , Klebsiella pneumoniae , Salmonella (Salmonella sp.), Shigella flexneri or Shigella sonnei , black mold ( Aspergillus niger ), Penicillium genus ( Penicillium pinophilum ), Ketomium genus ( Chaetomium globosum ), black yeast ( Aureobasidium pullulans ), etc. may be shown, but is not limited thereto.

The composition for a finishing material of the present invention specifically, Escherchia coli , and Staphylococcus aureus may be characterized as exhibiting antibacterial activity against, but is not limited thereto. In a specific embodiment of the present invention, as a result of evaluating the antimicrobial activity of the finishing layer of Example 1 prepared by the method of the present invention, the growth of Escherichia coli and Staphylococcus aureus was inhibited by up to 99.9999% or more, having excellent antibacterial activity was confirmed (Experimental Example 3).

In the composition for finishing material of the present invention, other components may be appropriately blended within the range that does not impair the purpose according to the present invention depending on the purpose of use, etc. in addition to the above essential components.

The manufacturing method of the finishing layer of the present invention is characterized in that the base paper is first impregnated with a urea resin or a melamine resin, and a composition for a finishing material is used in the secondary melamine coating step. In a specific embodiment of the present invention, the composition for the finishing material is not mixed with the melamine resin of the coating step, but is mixed with the urea resin of the first impregnation step to prepare the finishing layer of Comparative Example 2, the composition for the finishing material is added to the resin It was not evenly distributed, and it was confirmed that the adhesion to the board was also not good (Experimental Example 1). The "base paper" of the present invention means patterned paper or transparent patterned paper printed with various colors or patterns, and may include decorative paper, underlay paper, overlay paper, etc., but is not limited thereto.

The melamine resin of the present invention is to include 70 to 90% by weight of melamine and 10 to 30% by weight of the composition for finishing materials. If the composition for finishing material is included in less than 10% by weight, the flame retardant and antibacterial activity of the composition may not be sufficiently exhibited, and when included in more than 30% by weight, mixing with the melamine resin may not be performed preferably.

Drying of the present invention may be performed using a dry oven, infrared rays, or hot air, but is not limited thereto.

Hereinafter, the present invention will be described in more detail through examples. However, these examples are for illustrative purposes only, and the scope of the present invention is not limited to these examples.

Experimental Example 1. Preparation of the finishing layer

Experimental Example 1-1. Example 1 Preparation of the finish layer

The finishing layer is an eco-friendly surface finishing material made by impregnating base paper with melamine and urea resin and drying it so that it can adhere to the transparent coating layer only by hot pressure without adhesive. The composition for a finishing material used for manufacturing the finishing layer of the present invention is characterized in that it exhibits excellent flame retardant and antibacterial activity, including a flame retardant and an antibacterial agent.

Specifically, the flame retardant of the present invention comprises 65 to 75% by weight of (5-Ethyl-2-methyl-1,3,2-dioxaphosphorinan-5-yl)methyl dimethyl phosphonate P-oxide; Bis[(5-ethyl-2-methyl-1,3,2-dioxaphosphorinan-5-yl)methyl] methyl phosphonate P,P'-dioxide 20 to 30 wt%; and 5 wt% of polyethylene glycol, and the antibacterial agent of the present invention is 1-Phenoxy-2-propanol 75 to 90 wt%; and 10 to 25% by weight of 4,5-Dichloro-2-octyl-isothiazolone. 100 parts by weight of the flame retardant and 0.5 to 1 parts by weight of the antibacterial agent were mixed to prepare a composition for a finishing material.

Then, one side of the base paper is impregnated with the urea resin to remove air bubbles inside the base paper, and then completely immersed in the resin again to be impregnated. After that, it passes through a doctor roll that adjusts the amount of impregnation, and is dried while passing through an infrared lamp or a dry oven. Next, a melamine resin containing 20% by weight of the composition for the finishing material and 80% by weight of melamine is applied and coated on the impregnated paper using a mappcy roll. Next, it was dried while passing through a dry oven and cooled to prepare an Example 1 finishing layer.

It was confirmed that the finishing layer 130 of Example 1 manufactured by the above method had a smooth surface and excellent adhesion to the transparent coating layer 120 .

Experimental Example 1-2. Comparative Example 1 Preparation of the finishing layer

A finishing layer of Comparative Example 1 was prepared in the same manner as in Example 1, except that 100 parts by weight of a flame retardant and 3 parts by weight of an antibacterial agent were used for the finishing composition.

As a result, it was confirmed that the finish layer of Comparative Example 1 was not neatly manufactured, such as not having a smooth surface and cracks on the exterior due to accelerated curing. Since curing is promoted by affecting the physical properties of the melamine resin, it can be inferred that sufficient time is not given for the melamine coating to be preferably performed.

Experimental Example 1-3. Comparative Example 2 Preparation of the finishing layer

After preparing the composition for the finishing material in the same manner as in Example 1, the finishing layer was prepared by mixing the composition for the finishing material with the urea resin of the first impregnation step, rather than mixing the composition with the melamine resin of the coating step.

As a result, it was confirmed that the composition for the finishing material containing the flame retardant and the antibacterial agent and the urea resin of the first impregnation step were poorly mixed, so that the composition for the finishing material was not evenly distributed in the resin, and the adhesion to the transparent coating layer 120 was also poor. did. That is, it can be seen that the composition for the finishing material of the present invention is suitable to be mixed with the melamine resin, which is the secondary coating step.

Experimental Example 2. Flame-retardant performance evaluation

The flame retardant performance of the finishing layer 130 of Example 1 prepared by the method of the present invention was evaluated. Specifically, the finish layer of Example 1 was fixed in the specimen support frame of the combustion test box and heated with a McKell burner for 2 minutes. After that, after-flame time, after-life time, carbonization area and carbonization length were measured. The experiment was repeated 3 times.

Test Items standard Test result One 2 3 afterflame time within 5 seconds 0.0 seconds 0.0 seconds 0.0 seconds rest time within 20 seconds 0.0 seconds 0.0 seconds 0.0 seconds carbonation area within 40cm ² 16.9cm ² 16.9cm ² 18.5cm ² carbonization length within 20cm 5.5cm 6.0cm 6.5cm

As a result, as shown in Table 1, it was confirmed that the finish layer of Example 1 of the present invention had a flame retardant performance suitable for the standard.

Experimental Example 3. Antimicrobial activity evaluation

The antibacterial activity of the finishing layer 130 of Example 1 prepared by the method of the present invention was evaluated. Specifically, after sterilizing the surface of the finish layer of Example 1 with ethanol for disinfection, a culture solution of Escherchia coli ATCC 8739 and Staphylococcus aureus ATCC 6538p was placed thereon, and the film was covered and spread evenly. After 24 hours, the antibacterial activity (log value) was measured compared to the standard film to determine the degree of reduction of each strain.

Antibacterial activity (R) Interpretation of results E. coli 6.1 Reduced over 99.9999% S. aureus 4.8 More than 99.99% reduction

As a result, as shown in Table 2, the finish layer of Example 1 inhibited the growth of E. coli and Staphylococcus aureus by up to 99.9999% or more, and it was confirmed that it had remarkably excellent antibacterial activity.

That is, it was found that the finishing layer prepared according to the method of the present invention had excellent flame retardant and antibacterial activity while exhibiting smooth surface properties as a specific content of the flame retardant and antibacterial agent was coated with the melamine resin.

Figure 4 is a view showing a protective film cutting device for performing the marble coating construction method according to an embodiment of the present invention. FIG. 5 is a view illustrating a state of use of the protective film cutting device of FIG. 4 .

Meanwhile, in the following, with reference to FIGS. 4 to 5 , the edge of the protective film 100 in at least one of the first cutting step 3400 , the second cutting step 3600 , and the precision cutter step 3700 . Discloses the structure of the protective film cutting device 200 for cutting.

For example, the film attaching process 3000 includes a first cutting step 3400 of cutting the edge of the protective film 100 using the protective film cutting device 200 to match the edge of one surface of the marble, and one surface of the marble A second cutting step 3600 of cutting the edge of the protective film 100 using the protective film cutting device 200 to match the edge of the It may include a precision cutting step 3700 of cutting the edge of the protective film 100 by using the protective film cutting device 200 to match the edge of the.

The protective film cutting device 200 includes a protective film-side roller 201 that can be disposed on the upper surface of the protective film 100 , a marble-side roller 202 that can be disposed on the lower surface of the marble, and a protective film-side roller 201 . A first roller frame 203 to which is rotatably coupled, a second roller frame 204 to which the marble side roller 202 is rotatably coupled, and a first roller frame 203 and a second roller frame 204 ) and a lift 205 for adjusting the separation distance between the first roller frame 203 and the second roller frame 204, and one of the first roller frame 203 and the second roller frame 204 (eg : A cutter blade support 206 fixed to the rear end of the second roller frame 204), a cutter blade 207 coupled to the front end of the cutter blade support 206 and cutting the edge of the protective film 100; It may include at least one of a handle fixed to the rear end of one of the first roller frame 202 and the second roller frame (eg, the first roller frame) and gripped by the user.

The protective film-side roller 201 may include a pair of protective film-side rollers 201 , and the marble-side roller 202 may include a pair of marble-side rollers 202 . The protective film-side roller 201 may be disposed on the marble-side roller 202 . The protective film side roller and the marble side roller may be arranged to face each other in the vertical direction.

The first roller frame 203 may include a first rod 203a extending horizontally and a pair of first roller brackets 203b to which a pair of protective film side rollers 201 are coupled. The first roller bracket 203b may be formed in a 'V' shape, and the pair of protective film side rollers 201 may be coupled between the pair of first roller brackets 203b. The protective film side roller 201 may be disposed under the first rod 203a by the first roller bracket 203b.

The second roller frame 204 may include a second rod 204a extending horizontally and a pair of second roller brackets 204b to which a pair of marble-side rollers 202 are coupled. The second roller bracket 204b may be formed in a 'V' shape, and the pair of marble-side rollers 202 may be coupled between the pair of second roller brackets 204b. The marble-side roller 202 may be disposed on the second rod 204a by the second roller bracket 204b.

The lift 205 may have an upper end connected to the rear end of the first roller frame 203 and a lower end connected to the rear end of the second roller frame 204 . The length of the lift 205 may be adjusted in the vertical direction. The lift 205 may include, but is not limited to, a scissor lift, and may be a hydraulic cylinder. The lift 205 may adjust the vertical separation distance between the first roller frame 203 and the second roller frame 204 . The lift 205 can adjust the vertical separation distance between the protective film-side roller 201 and the marble-side roller 202 .

The cutter blade support 206 may be disposed on the sides of the first roller frame 203 and the second roller frame 204 . The cutter blade 207 may be coupled to the front end of the cutter blade support 206 .

Meanwhile, the cutter blade support 206 prevents the movement of the first roller frame 203 when the first roller frame 203 is moved in the vertical direction relative to the second roller frame 204 by the lift 205 . guide and slidably support the first roller frame 203 .

For example, the first roller frame 203 has one end connected to the first rod 203a, extending laterally from the first rod 203a, and the other end of the sliding protrusion 203c coupled to the cutter blade support 206 . The cutter blade support 206 is disposed on the side of the second roller frame 204, the lower end is fixed to the second rod 204a, and the support body 206a extends up and down "? , It may include a sliding groove 206b formed in the support body so as to penetrate the support body 206a and extending in the vertical direction into which the other end of the sliding protrusion 203c is inserted and slidably coupled. As the sliding protrusion 203c of 203 is inserted into the sliding groove 206b of the cutter blade support 206 and supported and coupled, the first roller frame 203 moves in the vertical direction when the cutter blade support 206 is moved up and down. can be stably supported by

A protective film mounted on and/or attached to marble and marble between the protective film-side roller 201 (or the first roller frame 203) and the marble-side roller 202 (or the second roller frame 204) ( 100) can be arranged. The lift 205 moves the protective film side roller 201 (or the first roller frame 203) so that the protective film side roller 201 and the marble side roller 202 can contact the protective film 100 and the marble, respectively. ) and the marble-side roller 202 (or the second roller frame 204) can adjust the separation distance.

At this time, the cutter blade 207 coupled to the front end of the cutter blade support 206 may correspond to the edge of the protective film 100 and may come into contact with the edge of the protective film 100 .

In at least one of the first cutting step 3400, the second cutting step 3600, and the precision cutting step 3700, the user can use the marble and the marble between the protective film side roller 201 and the marble side roller 202. By placing the protective film 100 in a state seated on one surface of the marble (eg, the upper surface), and adjusting the separation distance between the protective film-side roller 201 and the marble-side roller 202 with a lift 205, the protective film side The roller 201 is brought into contact with the upper surface of the protective film 100, the marble side roller 202 is brought into contact with the lower surface of the marble, and the protective film cutting device 200 is used to cut the edge of the marble by gripping the handle 208. The edge of the protective film 100 can be cut along the edge of the protective film 100 to a certain thickness with the cutter blade 207 in a state of being in contact with the edge of the protective film 100 while moving along. At this time, the protective film-side roller 201 and the marble-side roller 202 roll on the upper surface of the protective film 100 and the lower surface of the marble, respectively, to cut the protective film cutting device 200 (or cutter blade 207). can be moved

In this way, the user uses the protective film cutting device 200 in the first cutting step 3400, the second cutting step 3600, and the precision cutting step 3700 to be attached to the marble and the remaining protective film 100 edge It can be cut easily and precisely by fitting the excess to the edge of the marble.

In the above, specific embodiments have been shown and described. However, it is not limited to the above-described embodiments, and those of ordinary skill in the art to which the invention pertains can make various changes without departing from the spirit of the invention described in the claims below. .

100; protective film
110; adhesive layer
120; transparent coating layer
130; finishing layer
200; protective film cutting device

Claims (5)

Marble polishing process to polish the surface of marble;
Marble polishing process to give the surface of marble a luster;
Including; a film attachment process of attaching a protective film to one side of the marble to protect the surface of the marble;
The film attachment process is
cleaning one surface of the marble;
removing the remaining water on one surface of the marble;
cutting the protective film into a shape corresponding to one surface of the marble;
applying an aqueous surfactant solution to one surface of the marble and the adhesive surface of the protective film;
Seating the protective film on one surface of the marble and removing the moisture adhered to the upper surface of the protective film;
A first cutting step of cutting the edge of the protective film in accordance with the edge of the one surface of the marble;
discharging the bubbles formed between one surface of the marble and the adhesive surface of the protective film using a scraper and moving the surfactant aqueous solution to the edge of the protective film;
a secondary cutting step of cutting the edge of the protective film according to the edge of one surface of the marble; and
A precision cutting step of cutting the edge of the protective film according to the edge of one surface of the marble after a certain time has elapsed;
The marble polishing process is
Retaining with a covering tape;
polishing one surface of the marble using a polishing pad; and
Including; cleaning debris generated by polishing using the polishing pad;
The marble polishing process is
Including; polishing one surface of the marble using a polishing pad having a smaller particle size than the polishing pad used in the marble polishing process;
The protective film is
A finishing layer formed of a composition for a finishing material including a flame retardant and an antibacterial agent;
The flame retardant is (5-Ethyl-2-methyl-1,3,2-dioxaphosphorinan-5-yl)methyl dimethyl phosphonate P-oxide 65 to 75% by weight; Bis[(5-ethyl-2-methyl-1,3,2-dioxaphosphorinan-5-yl)methyl] methyl phosphonate P,P'-dioxide 20 to 30 wt %; and 5 wt% of polyethylene glycol,
The antibacterial agent is 1-Phenoxy-2-propanol 75 to 90% by weight; and 4,5-Dichloro-2-octyl-isothiazolone 10 to 25% by weight,
The composition for the finishing material is marble coating construction method, characterized in that it comprises 0.5 to 1 parts by weight of the antibacterial agent based on 100 parts by weight of the flame retardant.





delete delete delete ◈Claim 5 was abandoned when paying the registration fee.◈ According to claim 1,
At least one of the first cutting step, the second cutting step, and the precision cutting step is performed using a protective film cutting device,
The protective film cutting device
a protective film-side roller that can be disposed on the upper surface of the protective film;
a marble side roller that can be disposed on the lower surface of the marble;
a first roller frame to which the protective film-side roller is rotatably coupled;
a second roller frame to which the marble-side roller is rotatably coupled;
a lift for adjusting a separation distance between the first roller frame and the second roller frame; and
and a cutter blade support fixed to a rear end of one of the first roller frame and the second roller frame, and to which a cutter blade for cutting the edge of the protective film is coupled.

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