KR100720267B1 - Naturally staining wood flooring and process for preparing the same - Google Patents

Abstract

The present invention relates to a natural colored veneer flooring material and a method of manufacturing the same, by pursuing natural color, environmental friendliness, health by coloring natural veneer using natural dyes through pressure and pressure reduction process, natural veneer various methods It provides a flooring material that seeks to upgrade the well-being in well-being through natural coloring.

Natural Dye, Flooring

Description

Naturally colored veneer flooring and its manufacturing method {Naturally staining wood flooring and process for preparing the same}

1 is a device configuration for the coloring of natural colored veneer floorboard according to the present invention.

<Signs and explanations of the main parts of the drawings>

10: chemical injection tank (pattern injection tank)

20: chemical storage tank

30: vacuum pump (decompression)

40: compressor (pressurization)

The present invention relates to a method and apparatus for coloring veneer using natural dyes, and natural colored veneer flooring using the same, and a method for manufacturing the same.

Natural dyeing, which has been handed down for a long time, has recently been in the trend of exploding in demand due to the social flow of preferring natural materials obtained from nature without using chemicals.

Under these circumstances, much effort has been made to express the color of wood products more beautifully, and there are many demands for various colors.

In general, the wood flooring material reproduced the color due to the addition of the pigment to the UV paint through the coloring method, but this method may be less beautiful because of the turbidity of the color.

Republic of Korea Patent No. 430846 discloses a flooring material characterized in that the coating is applied to the base layer, and then partially or entirely spread the natural material chip, and formed by forming an upper layer of PVC powder of a predetermined thickness thereon, but wood There is a limit to implement a beautiful veneer effect only with the simple application of natural chips such as.

In Korean Utility Model Registration No. 218724, wood veneer (wood powder + synthetic resin) material with protrusions and connecting grooves on both sides is bonded with natural veneer and decorative sheet, and a ceramic coating layer is applied on the colored pattern to prevent discoloration and color. Udipra floorboard is disclosed, characterized by forming a UV coating layer to protect, but also there is a limit to implement a beautiful veneer effect by simply stacking veneer.

Accordingly, an object of the present invention is to color the veneer through the pressure reduction and pressure process and to maximize the natural color, environmental friendliness, and health by using natural dyes, and provides a flooring material and a method for manufacturing the same that implements a variety of colors It is.

The present invention to achieve the above object, (a) cutting the solid wood to produce a veneer; (b) supplying a natural dye to the drug storage tank; (c) supplying veneer to the drug injection tank; (d) depressurizing the chemical injection tank; (e) transferring the natural dyes stored in the medicine storage tank to the medicine injection tank; (f) pressurizing the chemical injection tank; (g) coloring the veneer supplied to the drug injection tank; And (h) provides a method for producing a natural colored veneer flooring material comprising the step of manufacturing the flooring using the colored veneer.

The present invention is characterized in that natural colored veneer is produced by performing a pressure and pressure reduction process using a coloring device having a chemical injection tank and a chemical storage tank in coloring veneer. It can easily and smoothly transfer the natural dye and penetrate the natural dye into the veneer. The water can be vacuumed through the decompression process, and the natural dye can be put into the chemical tank to apply color to the inside of the wood. .

The pressure reduction in step (d) is to make the vacuum in the chemical injection tank of 1 / 1,000 (10 ^-3 ) mmHg, the pressure of the step (f) is preferably carried out at 5 to 20 kg / ㎠. Maintain vacuum for a certain period of time (at least 1 minute) under reduced pressure to sufficiently remove water, and injecting natural dyes should maintain a pressure of 5 to 20 ㎏ / ㎠, and low pressure impairs the ability to penetrate the interior of wood. .

In the step (e), it is preferable to slowly open the valve of the chemical storage tank and transfer the natural dye to the chemical injection tank. Accordingly, it is possible to proceed with the transfer of the natural dye while minimizing the generation of bubbles.

In the step (g) it is possible to color the veneer by adjusting the injection time of the natural dye to 1 to 60 minutes, it is possible to implement a variety of colors according to the change of the injection time of the natural dye.

Natural dyes that can be used in the present invention include: 1) blue: green grass, chicken's hawthorn, irises, 2) green: buckthorn, citrus, irises, maple, dogwood, sesame, lump, yellowish white, barberry, sol Oak, 3) reddish: safflower, safflower, ginger, firewood, hike, joiner, bullied, gallant, yew, birch, brown oak, 4) purple: camellia, camellia, grape, persimmon, iris, 5) Yellow series: Gardenia, old trees, painting trees, onions, yellow walls, bark, clove, cinnabar, turmeric, 6) Brown series: joiner, alder, paulownia, chestnut, oak, pine, 7) black : Old trees, plum, pomegranate, cassia, yew, rhododendron, lotus bark, gall bladder, dermis, oak, 8) Gray series: Pomegranate, maple, prunus oak, maple, and at least one species selected from grazing. .

The concentration of the natural dye is preferably 1 to 10% by weight. The concentration of natural dyes should be at least 1% and can vary depending on the color of the consumer.

It is preferable to maintain the temperature at 60 to 80 ℃ in the chemical storage tank. It can be carried out without limiting the dissolving range of natural dyes, and the proper temperature can be carried out at about 60 to 80 ℃, excellent in terms of penetration and absorption of pigmentation in this temperature range, but the warp of the veneer due to the rapid temperature rise It may occur and, if possible, gradually increase the temperature so that it does not exceed 90 ° C.

The method for producing a natural colored veneer flooring material according to the present invention may further include the step of embedding the veneer in at least one method selected from among pre-salt, medial and post-salt to reproduce a more diverse color. Can be.

The mordant used in the mordant treatment is (a) lime, makgeolli, vinegar, brown rice, schisandra vinegar, ocho vinegar, alcohol, tea, tea, rice wine, glue, soybean, mortar, alum, wood, (b) rice straw, waxy rice, It is one or more selected from lye, pods, buckwheat, sulphides, pods, camellia, mulberry, pine and wormwood.

The cutting of the wood can be performed by one or more methods selected from among the rotary cutting, wood slicing, wood slicing, semi-circular slicing, estimated wood cutting, and wood direction slicing, thereby producing veneer having various visual effects.

In addition, the present invention provides a natural colored veneer floor covering comprising a base layer, a natural colored veneer layer, and a surface treatment layer from below.

As the base layer, plywood, solid wood, veneer, particle board, medium density fiber board (MDF), high density fiber board (HDF), oriented strand board (OSB), and the like can be used.

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

1 is a device configuration for the coloring of natural colored veneer flooring according to the present invention, the coloring device is a chemical injection tank (10), the chemical storage tank (20) in which the natural dye is added to the veneer is colored ), A vacuum pump 30 for inducing pressure reduction of the chemical injection tank 10, and a compressor 40 for inducing pressurization of the chemical injection tank 10, each tank 10, 20 and the pump 30 40 is connected to the pipeline and the opening and closing and the flow rate are regulated by the valve.

Looking at the manufacturing process of the natural colored veneer flooring according to the present invention using the coloring device as follows.

1. First process: veneer manufacturing and input process

Different types of veneer cutting can be used to produce veneers with various visual effects.

For example, rotary cut, Flat slicing, Flat cut, Flat sliced, Crown cut, Plain sliced, Quarter slicing, Half-round slicing, Estimated wood Rift-cutting, lengthwise slicing, and the like.

Even the same species of solid wood is produced in different patterns by different cutting methods. In the wood, the veneer of 0.15 mm or more in thickness produced by this method is filled in the chemical injection tank 10.

2. Second process: veneer coloring process

The coloring process is specifically divided into two tanks, namely, a process performed in the chemical injection tank 10 and the chemical storage tank 20.

First, about 3 L of natural colorant is first introduced into the chemical storage tank 20. The natural dyes available at this time are as follows.

1) Blue: Green grass, chicken grass, iris, etc.

2) Green: Buckthorn, Citrus, Irises, Maple, Dogwood, Sesame Seed, Hydrangea, Yellow White, Barberry, Prunus Oak, etc.

3) Red series: Dussini, Safflower, Ginger, Fire, Trail, Joiner, Bullflower, Grow, Yew, Birch, Brown Oak, etc.

4) Purple system: Joiner, Camellia, Grape, Persimmon, Irises, Purple

5) Yellow series: Gardenia, old trees, painting trees, onions, yellow walls, barren, cloves, jasmine, turmeric, etc.

6) Brown: joiner, alder, paulownia, chestnut, oak, pine, etc.

7) Black system: old trees, plum, pomegranate, cassia, yeast, red wood, lotus shell, quince, dermis, oak, etc.

8) Gray series: pomegranate, maple, pruning oak, maple cattle, grazing, etc.

Also, mordant treatment is possible to reproduce more diverse colors. As a method of mordant, there is a pre-salt which pretreatment of the mordant in accordance with the treatment method of mordant, a heavy mordant which is added simultaneously with the dye, and a post mordant process after coloring.

Types of mordants include lime, makgeolli, vinegar, brown rice, omizacho, umecho, liquor, teacup, taste, glue, soybean juice, mortar, alum, wood, etc.Alkali lye can be used. , Lye, Myeongju, pods, buckwheat, sulphides, pods, camellia, mulberry, pine wood, wormwood, etc. can be used to produce lye. It can also be used by other chemical methods.

When explaining the coloring method, first in the chemical injection tank (10) for at least one minute to remove moisture in the wood After depressurizing, slowly open the valve of the chemical storage tank 20 to transfer the natural dye to the chemical injection tank 10 while at least suppressing the generation of bubbles, and then pressurize the chemical injection tank 10 to force injection. . Coloring of the veneer is made by depositing the natural dye injected in the chemical injection tank 10 in the veneer.

At this time, the pressure reduction is to make the inside of the chemical injection tank 10 into a vacuum state of 1 / 1,000 (10 ^-3 ) mmHg by using the vacuum pump 30, and slowly open the valve of the chemical storage tank 20 after decompression After the natural dye is transferred to the chemical injection tank 10 without any occurrence, and the pressure between the chemical injection tank 10 and the chemical storage tank 20 is balanced, the chemical injection tank 10 is used for the chemical injection tank 10. When a pressure of 5 to 20 kg / cm 2 is applied, a natural dye is forcibly injected into the veneer in the chemical injection tank 10.

3. Third process: flooring material manufacturing process

According to the manufacturing process of conventional flooring material, the colored veneer in the above step is laminated on the substrate layer and integrated by hot or cold press, and then the upper, middle and top coat layers are coated on the colored veneer according to the conventional UV coating treatment. Coating and curing in turn to form a surface treatment layer.

As the substrate layer, 3 sheets, 5 sheets, 7 sheets plywood, solid wood, veneer, particle board, MDF (Medium Density Fiberboard), HDF (High Density Fiberboard), OSB (Oriented Strand Board) can be used.

EXAMPLE

1. veneer manufacturing

Cherry and Walnut veneers with a thickness of 0.35 mm were prepared by rotary cutting using Cherry and Walnut logs and used as veneer.

2. veneer coloring

3 L of 10% by weight of gardenia concentrate was added to the chemical storage tank 20, and veneer was added to the chemical injection tank 10, respectively. The temperature of the chemical storage tank 20 was maintained at least 15 ℃. After depressurizing the chemical injection tank (10), slowly open the valve of the chemical storage tank (20) and transfer the natural dye to the chemical injection tank (10) while minimizing the generation of bubbles, and then to the chemical injection tank (10) Pressurization of 5-20 kg / cm <2> of pressure was performed. Coloring veneer was prepared by coloring the veneer while varying the injection time of the natural dye, followed by a drying process.

3. Flooring material production

The laminated wood veneer was laminated with a 5-sheet plywood as a base layer, and then integrated with a press, and then a surface-treated layer was formed on the colored veneer by UV coating to prepare a natural colored veneer flooring material according to the present invention.

[Test Example]

When coloring veneer in the above embodiment, the change in the veneer color with time according to the injection time of the drug (natural dye) was examined, and the measurement was performed through a color difference meter.

Table 1 and Table 2 show the color change according to the chemical injection time of Cherry Venner and Walnut Venner, respectively, where L is the brightness, a and B are the color, and DE * is the color difference value. In (10), it means the time to be deposited in the drug.

According to Table 1 and Table 2, it can be seen that the change in DE * value is large according to the drug injection time, it can be seen that the implementation of various colors according to the change of the drug injection time.

Cherry L a B DE * Untreated 60.51 14.32 17.04 1min 57.63 14.33 19.2 5.34 3min 56.71 14.53 19.1 5.91 5min 56.83 14.79 20.11 7.52 10min 56.46 14.57 20.62 8.7 30min 55.19 14.44 20.97 10.34

Walnut L a B DE * Untreated 44.34 5.33 9.23 1min 46.72 6.32 13.08 6.87 3min 45.86 6.18 13.2 7.01 5min 46.93 6.46 13.48 7.61 10min 46.41 6.76 14.7 9.88 30min 46.49 6.49 13.43 7.49

The present invention can realize a variety of colors by adjusting the chemical injection time, such as through a reduced pressure and pressure process, and also maximize the natural color, environmental friendliness, health by using a natural dye compared to the conventional chemical pigments It is possible to manufacture new building interior materials.

Claims (14)

(A) cutting the solid wood to produce a veneer; (b) supplying a natural dye to the drug storage tank; (c) supplying veneer to the drug injection tank; (d) depressurizing the chemical injection tank; (e) transferring the natural dyes stored in the medicine storage tank to the medicine injection tank; (f) pressurizing the chemical injection tank; (g) coloring the veneer supplied to the drug injection tank; And (h) a method for producing a natural colored veneer flooring comprising the step of making a flooring using the colored veneer. The method of claim 1, wherein the depressurization of the step (d) makes the interior of the chemical injection tank into a vacuum of 1 / 1,000 (10 ^-3 ) mmHg. The method of claim 1, wherein the pressing of the step (f) is performed at 5 to 20 kg / cm 2. The method of claim 1, wherein in step (e), the valve of the chemical storage tank is slowly opened to transfer the natural dye to the chemical injection tank. The method of claim 1, wherein in the step (g), the injection time of the natural dye is adjusted to 1 to 60 minutes to color the Mooney tree. The method of claim 1, wherein the natural dye is 1) blue: green grass, chicken filament, iris, 2) green: buckthorn, citrus, iris, maple, dogwood, sesame, lump, yellow white, barberry, Pruning oak, 3) reddish color: sapling, safflower, ginger, fire wood, hiking tree, joiner, lump, gallast, yew, birch, brown oak, 4) purple color: joiner, camellia, grape, persimmon, cherries, Lichens, 5) Yellow: Gardenia, Old Tree, Painting Tree, Onion, Yellow Wall, Rhododendron, Clove, Jelly, Turmeric, 6) Brown: Pine, Alder, Paulownia, Chestnut, Oak, Pine, 7) Black System: old tree, ume, pomegranate, cassia, yew, rhododendron, lotus bark, gallula, dermis, oak, 8) Gray system: at least one selected from pomegranate, maple, prunus oak, maple, grazing A method for producing natural colored veneer parquet materials by tapping. The method of claim 1, wherein the concentration of the natural dye is 1 to 10% by weight. The method of claim 1, wherein the chemical storage tank maintains a temperature of 60 to 80 ℃. The method of claim 1, further comprising the step of burying the veneer in at least one method selected from among pre-salt, medial and post-salt. The method of claim 9, wherein the mordant used in the mordant treatment is (a) lime, rice wine, vinegar, brown rice, Schisandra chinensis, five vinegar, liquor, teacup, taste, glue, soybean juice, mortar, alum, wood, (b 1) A method for producing natural colored veneer flooring, characterized in that it is at least one selected from among straw, waxy rice, mingled rice, pods, buckwheat, sulphides, pods, camellia, mulberry, pine needles and wormwood. The method of claim 1, wherein the cutting of the solid wood of the natural wood veneer flooring, characterized in that carried out by at least one method selected from rotary cutting, wood slicing, wood slicing, semi-circular slicing, estimated wood cutting, wood direction slicing. Manufacturing method. Natural colored veneer flooring comprising a veneer colored with natural dyes. 13. The natural colored veneer parquet according to claim 12, comprising a base layer, a natural colored veneer layer, and a surface treatment layer from below. The method of claim 13, wherein the base layer is at least one selected from plywood, solid wood, veneer, particleboard, medium density fiberboard (MDF), high density fiberboard (HDF), oriented strand board (OSB) characterized in that the natural coloring Wood veneer flooring.

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