KR102413662B1 - Manufacturing method of interior metal furniture - Google Patents

Abstract

One embodiment of the present invention comprises the steps of (a) preparing a metal material by processing it into a predetermined shape; (b) applying a coating composition comprising titanium-based particles and fluorine-based wax to the surface of the metal material; (c) melting the applied coating composition by friction; (d) wiping the coating composition; And (e) it provides a method for manufacturing metal furniture, including the aging step.

Description

Manufacturing method of metal furniture for interior

The present invention relates to a method of manufacturing metal furniture, and more particularly, to a method of manufacturing metal furniture for interior use by maximizing the unique tactile sensation of metal.

Metal furniture is a furniture manufactured using metal materials, has excellent durability, is non-combustible, and has little damage from fire, does not generate volatile organic compounds, and is easy to recycle, attracting attention as an eco-friendly material.

However, the peculiar smell of metal, the rough feel and the cold aesthetics are areas where consumers have different likes and dislikes, so their application to high-end furniture is somewhat insufficient. In addition, molten metal caused by the presence of moisture and salt is a major obstacle to the long-term use of furniture.

The developers of the present invention have developed a manufacturing method of metal furniture that maintains the basic properties of a metal material from this point of view or provides a luxurious luster while maintaining the aesthetics realized by grinding it and implementing a soft texture suitable for furniture.

In particular, since such metal furniture has a luxurious luster under the light bulb, it can be very suitable for interior use.

The present invention was derived to solve the above problems, and the present invention aims to maintain the aesthetics of the metal material itself or to impart a luxurious luster while polishing it, to have durability and anti-fingerprint properties, and to improve moisture resistance and tactile properties. The purpose.

One aspect of the present invention for solving the above problems is (a) preparing a metal material by processing into a predetermined shape; (b) applying a coating composition comprising titanium-based particles and paraffin-based wax to the surface of the metal material; (c) melting the applied coating composition by friction; (d) wiping the coating composition; And (e) provides a method of manufacturing a metal furniture comprising the step of aging (aging) the coating layer.

In an embodiment, the metal material may be at least one selected from the group consisting of pig iron, steel, stainless steel, brass, bronze, and a gold-based alloy.

In an embodiment, the titanium-based particles may be composed of Ti ³⁺ ions, Ti ⁴⁺ ions, and O ² − ions.

In one embodiment, the titanium-based particles may be represented by the following Chemical Formula 1:

<Formula 1>

TiO _2-x

In the above formula, x satisfies 0<x<1.

In one embodiment, the average particle diameter of the titanium-based particles may be 0.5 ~ 20㎛.

In one embodiment, the paraffin wax may further include a fluororesin.

In one embodiment, the coating layer may be yellow, yellowish red, white, ivory or blue.

One aspect of the present invention can provide a method for manufacturing metal furniture that maintains the aesthetics of the metal material itself or imparts a luxurious luster while polishing it, has durability and anti-fingerprint properties, and has excellent moisture resistance and tactile properties.

It should be understood that the effects of the present invention are not limited to the above-described effects, and include all effects that can be inferred from the configuration of the invention described in the detailed description or claims of the present invention.

Hereinafter, we will look at the metal furniture manufacturing method of the present invention in more detail. However, the following descriptions are provided to facilitate implementation of the present invention by way of example, and the present invention is not limited by the following descriptions.

Metal furniture manufacturing method

A method of manufacturing metal furniture according to an aspect of the present invention comprises the steps of: (a) preparing a metal material by processing it into a predetermined shape; (b) applying a coating composition comprising titanium-based particles and paraffin-based wax to the surface of the metal material; (c) melting the applied coating composition by friction; (d) wiping the coating composition; and (e) aging the coating layer.

According to the desired aesthetic characteristics, in step (a), the metal material may be treated according to a general polishing method.

The metal material may be at least one selected from the group consisting of pig iron, steel, stainless steel, brass, bronze, and a gold-based alloy. The type of the metal material may be appropriately selected according to the aesthetics of the metal furniture to be implemented, and the method of manufacturing the metal furniture provides a sense of quality while maintaining the characteristics of the raw material, and can implement an excellent tactile feel.

The predetermined shape may be selected according to the desired shape of the metal furniture, and is not limited to, for example, a chair, a bed frame, a desk, a clothes hanger, and the like.

Step (b) is a first step for forming a coating layer that gives a luxurious gloss to metal furniture, and may be performed by applying a solid coating composition comprising titanium-based particles and paraffin-based wax.

The titanium-based particles may function as a kind of abrasive and improve gloss by removing elements that inhibit the gloss of the metal surface by friction.

In addition, since the titanium-based particles have photocatalytic activity, it is possible to impart antibacterial properties to metal furniture.

The titanium-based particles may include Ti ³⁺ ions, Ti ⁴⁺ ions, and O ² − ions. The titanium-based particles may be titanium oxide including at least one crystal structure of a rutile type, an anatase type, and a brookite type structure. In general, the rutile form is the most stable, and the anatase and brookite crystal structures can be easily converted into the rutile form through heating.

Rutile-type and anatase-type titanium oxides have an octahedral unit lattice structure in which 6 O ² -ions are bonded around Ti ⁴⁺ ions. The rutile type and the anatase type have differences in properties such as density due to differences in structure.

For example, the rutile type has a refractive index of 2.61-2.90 and an energy gap of 3.0 eV. On the other hand, the anatase type has a refractive index of 2.49 to 2.55 and an energy gap of 3.2 eV. Since the titanium-based particles have a high refractive index and an energy gap sufficient to absorb various light sources, a luxurious glossiness can be easily realized when well dispersed in a coating layer containing paraffin wax as a matrix.

More specifically, the titanium-based particles may be represented by the following Chemical Formula 1:

<Formula 1>

TiO _2-x

In the above formula, x satisfies 0<x<1.

The titanium-based particles may have voids at some anion sites. As a result, it is expressed as a structure such as Formula 1 while not TiO ₂ , and as the lattice structure changes, different energy gaps and refractive indices are realized, thereby realizing a unique and more luxurious gloss.

The titanium-based particles may be prepared by dissolving titanium and zinc in alcohol in a weight ratio of 1:1 to 5, and heat treatment at 150 to 250° C. for 1 to 10 hours. Anion vacancy may increase as the ratio of the zinc is relatively high.

The average particle diameter of the titanium-based particles may be 0.5 to 20 μm, for example, 0.5 μm, 1 μm, 5 μm, 8 μm, 12 μm, 18 μm, or 20 μm, but is not limited thereto. When the average particle diameter of the titanium-based particles satisfies the above range, the performance as an abrasive is excellent, and the surface texture of the coating layer is excellent, and it is possible to prevent the problem of deterioration of the sense of quality of the gloss due to excessive light reflection.

The paraffin wax may be a saturated hydrocarbon having 20 to 60 carbon atoms, and there are solid paraffin and liquid paraffin. However, when solid paraffin is used, metal polishing properties may be more excellent.

By melting the coating material composition by friction in step (c), a coating layer having a titanium-based particle discontinuous phase present in the matrix composed of the paraffin-based wax may be formed. At this time, the titanium-based particle discontinuous phase may induce the surrounding paraffin wax to agglomerate, thereby giving the coating layer a self-healing or self-healing function.

The paraffin wax may further include a fluororesin. The fluororesin may be at least one selected from the group consisting of tetrafluoroethylene, polyvinylidene fluoride, polyvinyl fluoride, polychlorotrifluoroethylene and derivatives thereof, but is not limited thereto.

When the matrix composed of the paraffin wax includes a fluororesin, the stain resistance may be relatively excellent, and the self-repairing function described above may be more excellent.

The coating layer may be yellow, yellowish red, white, ivory or blue. The color of the coating layer may vary depending on the characteristics of the titanium-based particles. For example, according to the amount of anion vacancy provided by suppressing complete oxidation of Ti ³⁺ using zinc during the production of titanium-based particles, colors may be given in the order of yellow, yellowish red, white, ivory, or blue. The color of this coating layer is insignificant when visually confirmed, but it can play an important role in giving a more luxurious aesthetic feeling along with the luster of metal furniture.

The step (d) is to remove most of the formed coating layer by wiping it, and it is possible to prevent a phenomenon in which an excessive color or gloss is imparted unnecessarily by leaving only a relatively thin coating layer, thereby degrading the sense of quality.

When the coating layer remaining in step (e) is aged after step (d), it is planarized by the self-healing function described above to realize excellent glossiness and durability.

Since the metal furniture according to the above-described manufacturing method has a luxurious luster in the room, it can be very suitably used for the interior.

Hereinafter, a specific embodiment to which the manufacturing method of the iron furniture is applied will be described. However, the invention described herein is not limited by the examples below.

production example

4 parts by weight of TiCl ₂ were mixed with 100 parts by weight of isopropanol. 4-20 parts by weight of zinc was added and stirred for 1 hour to prepare a mixture. The mixture was reacted at 200° C. for 8 hours, and cooled to room temperature using an ice bath. It was washed three times with purified water and hydrochloric acid to remove unreacted substances, and then dried at 80° C. to prepare a metal powder. The powder was pulverized with a jet mill to obtain metal fine particles having an average particle diameter of 5 μm. The fine particle powder was mixed with fluorine-based paraffin wax heated to 60° C., stirred for 1 hour, and then cooled to prepare a coating material composition.

Example

A metal plate made of pig iron, steel, stainless steel, brass, bronze, or a gold-based alloy (silver, copper, nickel, zinc, palladium) was prepared.

1/3 of each metal plate was processed with an abrasive to give it gloss (first side), and the remaining 2/3 maintained the characteristics of the raw material without additional processing. The coating material composition of Preparation Example was applied to the first side of the metal plate and half (the second side) of the unprocessed side, and rubbed with a pad of a non-woven fabric material 50 times or more to melt the wax component. Thereafter, the residue was removed with a microfiber cloth. The remaining 1/3, which had not been processed at all, was used as the third side.

Experimental Example 1

The results of measuring the surface properties of the metal plate processed in the above example by the 5-point method are shown in Table 1 below (the higher the score, the better).

division pig iron steel stainless steel brass bronze rose gold white gold glossiness page 1 5 5 5 5 5 5 5 page 2 4 4 4 4 4 5 5 page 3 2 2 3 One 2 3 3 durability page 1 5 5 5 5 5 5 5 page 2 5 5 5 5 5 5 5 page 3 2 4 3 2 2 One One moisture resistance page 1 5 5 5 5 5 5 5 page 2 5 5 5 5 5 5 5 page 3 One One 4 3 2 3 3 anti-fingerprint page 1 5 5 5 5 5 5 5 page 2 5 5 5 5 5 5 5 page 3 3 2 4 2 2 One One tactile properties page 1 5 5 5 5 5 5 5 page 2 5 5 5 5 5 5 5 page 3 2 One 2 2 One 3 3

-Glossiness: The glossiness under a 20W LED bulb was visually evaluated. Higher scores were given as the gloss gave a luxurious aesthetic.-Durability: Using a cutter knife, an X was marked on the upper, middle, and lower parts of each side and evaluated with the naked eye after 24 hours. The fewer the marks, the higher the score.

-Moisture resistance: After standing in salt water for 24 hours at a temperature of 50℃, the surface was visually evaluated for abnormalities.

-Fingerprint resistance: After touching each side 10 times with the measurer's thumb and leaving it for 24 hours, the degree of fingerprint exposure was evaluated with the naked eye. The fewer fingerprints revealed, the higher the score.

-Tactile characteristics: After rubbing from each side up and down with the measurer's thumb, the tactile feel was evaluated. The softer the touch, the higher the score.

When polished with the coating material composition, a fine coating layer is formed on the surface to realize a luxurious gloss, and these coatings seem to have improved moisture resistance. In addition, since this coating layer has self-healing properties, it can be seen that scratches and fingerprints are reduced over time, and soft tactile properties can be imparted to the surface. In particular, the second surface has the appearance of a rough metal surface and a unique aesthetic feeling with soft tactile characteristics.

Experimental Example 2

Table 2 below summarizes the gloss properties realized according to the content of zinc used in preparing the coating material composition.

In Table 2 below, the gloss properties are the results of visually observing the reflection of light from the 20W white LED bulb by placing white A4 paper next to the first surface of the stainless steel of the above example.

division A B C D E Zinc (parts by weight) 4 8 12 16 20 luster properties yellow yellow red ivory White blue

Claims (8)

(a) preparing a metal material by processing it into a predetermined shape;
(b) dissolving 4 parts by weight of titanium and 4 to 20 parts by weight of zinc in 100 parts by weight of alcohol, and heat-treating at 200° C. for 8 hours to prepare titanium-based particles;
(c) pulverizing the titanium-based particles with a jet mill to pulverize metal particles having an average particle diameter of 1 to 10 μm;
(d) preparing a coating material composition by mixing the metal particle powder with fluorine-based paraffin wax heated to 60° C., stirring it for 1 hour, and then cooling;
(e) applying the coating material composition of step (d) to the surface of the metal material of step (a);
(f) melting the applied coating composition by friction;
(g) wiping the coating material composition; and
(h) in the method of manufacturing a metal furniture comprising the step of aging the coating layer,
The titanium-based particles of step (b) are represented by the following formula (1),
<Formula 1>
TiO _2-x
In the above formula, x satisfies 0<x<1.
The fluorine-based paraffin wax of step (d) includes solid paraffin and a fluororesin,
The fluororesin includes at least one selected from the group consisting of tetrafluoroethylene, polyvinylidene fluoride, polyvinyl fluoride, polychlorotrifluoroethylene and derivatives thereof,
The coating layer is yellow, yellowish red, white, ivory or blue,
The coating layer has self-healing properties,
Method for manufacturing metal furniture. The method of claim 1,
The metal material is at least one selected from the group consisting of pig iron, steel, stainless steel, brass, bronze, and a gold-based alloy, a method of manufacturing metal furniture. delete delete delete delete delete Metal furniture manufactured by the manufacturing method according to claim 1 or 2.