KR100537481B1 - Composition of Colored Wood Preservative and Treatment Method Using Colored Wood Preservative - Google Patents

Abstract

The present invention relates to a color wood preservative composition and a method of color preservation of wood using the same, specifically, 1-3% (W / W) CCA aqueous solution and 0.1-1.0% (W / W) based on the weight of the CCA aqueous solution. Colored wood preservative composition containing procion dyes; And preparing a 1-3% (W / W) CCA aqueous solution, and mixing 0.1-1.0% (W / W) procionic dye based on the weight of the CCA solution to prepare a color wood preservative composition. , Pressurizing to 250 mmHg or less, pressure to 9-14Kg / cm ² and back to 630mmHg, and immersing the pressurized wood in a fixed solution for 60 hours. It has been possible to provide a method of color preservation of wood, comprising curing at least 24 hours at < RTI ID = 0.0 >

Description

Composition of Colored Wood Preservative and Treatment Method Using Colored Wood Preservative

The present invention relates to a color wood preservative that can serve as both a preservative and a dye, and to a color wood preservative containing both a water-soluble wood preservative and a low temperature fixing reactive dye, and a color preservation method of wood using the same.

Generally, wood is a material widely used for manufacturing buildings, furniture, appliances, etc., but due to the nature of the organic material, it may be easily deteriorated depending on the environmental requirements.

Especially in the case of playground equipment installed on a bench or playground of a park, or wood installed by being exposed to the outside, such as an outer wall or a roof of a building, it is directly exposed to harsh environments such as rain, wind, fog, sunlight, snow, Preservative treatment using various wood preservatives is essential.

Generally, "preservative" performance means that wood preservatives are effective in preventing the addition of fungi. Such fungi of wood include white fungi that degrade cellulose, white fungi that degrade cellulose, and lignin. There are soft fungi that differ slightly from other types, and these fungi are accompanied by a decrease in the strength of wood regardless of their type.

Conventional preservatives that have been used conventionally for such antiseptic purposes include water-soluble medicaments such as sodium fluoride, arsenic compounds, mixtures of dichromic acid and phenols such as dinitrocresol, and chromium copper arsenate (CCA). Chromium, copper, arsenic compounds and the like are known, and as the oil-soluble agent, pentachlorophenol and its derivatives, PCP-laurate, PCP-dihydroabiethylamine, trichlorophenol and dinitroolso, are known as PCP. Phenolic compounds such as cresol and tribromophenol, tin compounds such as tributyltin oxide, tributyltin fumarate, and the like, copper naphthenate and metal naphthenic acid salts such as zinc naphthenate and the like are known.

However, such existing preservatives have problems such as VOC generation, toxicity, and odor generation, and sometimes the volatility is so strong that it is lost in a short time, the sustainability of the effect could not be expected.

Efforts to overcome such disadvantages of existing preservatives are often found in patent prior art. For example, according to Korean Patent Publication No. 2003-39671, the bactericidal effect is increased by containing carbendazim and diuron. The present invention relates to a preservative composition which has been found to be ancillary, and according to Korean Patent Laid-Open Publication No. 2002-31168, it contains a sterically hindered amine N-oxyl or N-hydroxyl to prevent lignin degradation, thereby preventing side effects by fungi. A preservative composition to be prevented is disclosed.

In addition, Korean Patent Publication No. 2002-92774 discloses an antiseptic and insect repellent composition which provides safety to animals and adaptability to the environment by containing natural antiseptic and insect repellent components such as hinokithiol, tannin, and terpineol. Korean Patent Publication No. 200263375 discloses a biocide composition for the preservation of a cultural agent to solve the toxicity and persistence problems of conventional preservatives by containing extracts of herbal medicines such as cloves, frankincense and octagonal fennel as active ingredients. .

As described above, in addition to attempting to solve the shortcomings of the existing preservatives or to improve performance, an attempt to add other functions to the preservatives can be found. For example, in Korean Patent Publication No. 2003-78544, It has been disclosed about waterproof / preservatives to impart not only antiseptic function but also waterproof function by incorporating toluene penetrant, mineral oil component waterproofing agent, and kerosene as the subject matter, and according to Korean Patent Publication No. 2003-77473, resin, rosin Or by containing a rosin and wax, has been disclosed for a multi-purpose, multi-functional wood coating composition intended to impart waterproofing, water repellent, flame retardant, anti-fog, insect repellent and adhesive with antiseptic function, Korean Patent Publication No. 2001-112779 According to the present invention, by containing sulfamic acid amine salt and cationic surfactant as active ingredients, In addition, there has been disclosed a wood preservative for imparting a flame retardant, antiseptic and insect repellent effect.

In addition, Korean Patent Laid-Open Publication No. 2002-75158 discloses a wood preservative for recycling and preventing pollution of resources using dry dust, which is a waste of brass and copper-alloy materials, and hydrofluoric acid, a by-product of phosphoric acid and hydrofluoric acid production. have.

However, none of these patented preservative compositions, in particular attempts to additionally impart other functions than preservatives, have been disclosed with respect to preservatives which attempt to impart coloring or dyeing functions with antiseptics. Thus, up to now, the preservation and coloring treatment of wood has always been carried out separately by separate processes using individual drugs or compositions, which has been accepted as an indispensable component of the cost increase.

Therefore, by providing antiseptic and dyeing function together, not only can provide preservative wood of user's desired color, but also preservation and dyeing process of wood at once, simplifying the process and reducing cost It can be said that the appearance of the antiseptic and dye combination antiseptic which can be done is needed.

The present invention is to overcome the problems of the prior art as described above, the object is to provide an antiseptic wood of the color desired by the user, and to simplify the process and cost by performing the antiseptic treatment and dyeing treatment process of wood at once It is to provide a color wood preservative combined with antiseptic and dyeing, and color preservation method of the wood using the same that can reduce the cost.

To this end, the present invention comprises a color wood preservative composition containing 1-3% (W / W) CCA aqueous solution and 0.1-1.0% (W / W) procedural dye based on the CCA aqueous solution; And preparing a 1-3% (W / W) CCA aqueous solution, and mixing 0.1-1.0% (W / W) procionic dye based on the weight of the CCA solution to prepare a color wood preservative composition. , Pressurization was carried out to the pre-exhaust pressure to 250mmHg or less and 9-14Kg / cm ² pressure and the post-exhaust to 630mmHg pressure, and after the pressurized wood was immersed in the adhesive solution, It is made to provide the color preservation method of the wood which consists of curing for 24 hours or more.

The present invention relates to a color wood preservative that can serve as both a preservative and a dye, and includes Chromated Copper Arsenate (CCA), a water-soluble wood preservative most commonly used in Korea, and a procedure-based dye, which is a low-temperature fixing reactive dye. The present invention relates to a color wood preservative containing the same and a method of color preservation of wood using the same.

In general, when CCA is used as a preservative, the color of treated wood is not the natural color of wood, but green color, which is the color of copper in the preservatives, and this change of color is the reason why CCA-treated wood is not preferred in the preservative market. The present invention, by preventing the color change of the CCA treated wood, by providing a color wood preservative and color preservative treatment method of the wood using the same to arbitrarily adjust the color of the treated wood according to the user's preference It can be said to produce high value added preservative wood.

Chromated Copper Arsenate (CCA) is a composition consisting of 17.0-21.0% by weight of copper in the form of CuO, 44.5-50.5% by weight of chromium in the form of CrO _3, and 30.0-38.0% by weight of arsenic in the form of As ₂ O ₅ , While there is no control effect against surface contamination (Mold), and the color is changed to green color, while it is very effective for wood parasites, insects including termites and marine perforated insects, the coating of preservative wood It is a water-soluble wood preservative that is used most frequently in Korea because it has no problem in adhesiveness, no toxic vapor due to odor or volatilization of pharmaceutical ingredients, no increase in weight of treated materials after rebuilding, and low price. .

The dyes have different dyeing aptitudes depending on the type, and the dyeing conditions for dyes to adhere well to the dyes are also varied. According to the method of use, dyes are direct dyes, reactive dyes, acid dyes, vat dyes, sulfur dyes, dispersion dyes, And basic dyes. Reactive dyes are known to be the most suitable dyes that can be used in color wood preservatives.

Unlike other dyes, this dye can be dyed at low temperature (room temperature) and forms covalent bonds with chlorides, so it has the advantage of excellent permeability, uniformity and daylight fastness. Where color fastness refers to the degree of resistance and durability to various external conditions of the color of the dye, which is characterized by the nature of the dye, the state of dyeing, the amount of dyeing and the nature of the wood, It is a characteristic that a considerable difference occurs depending on the type of processing agent added with the dye.

Looking at the characteristics of the dye that can be used with the CCA in the production of the color wood preservative of the present invention in more detail, first, it should be easy to mix with CCA, a copper compound-based wood preservative in water solubility, and secondly, It should be possible to dye wood within a temperature range that minimizes possible sludge problems. Third, in terms of use and environmental safety, the dyes should not affect the settling and leaching properties of the preservative active ingredients. Color fasteners should have good fastness to prevent the color from fading.

The present inventors obtained the test results as shown in Table 1 by testing the dyeing aptitude of the various types of dyes used for textile dyeing, it was determined that the reactive dye has the most suitable characteristics.

Dyeing suitability of dyes and fibers division Direct dyes Basic dyes Acid dyes Disperse Dyes Responsive dyes Tendon dye Naphthol dyes Sulfur dyes Oxidation Dye Solvent dyes Dog ｏ x x x ◎ ◎ ｏ ｏ ｏ x hemp ｏ x x x ｏ ｏ ｏ ｏ ｏ x Dog ｏ ◎ ｏ x ｏ △ △ x △ x wool △ ◎ x ｏ △ x x x △ nylon △ ◎ ｏ ｏ ｏ △ x x x x Acetic acid x x △ ◎ △ x x x x x Polyester x x x ◎ △ △ x x x x Acrylic fiber x ｏ ◎ x △ x x x x x x Pulp paper ｏ ｏ ｏ x ｏ △ △ x x ◎

◎: Excellent dyeing ｏ: Normal dye △: Lightly dyed X: Not dyed

Particularly, in the present invention, among these reactive dyes, procion-based dyes were selected as dyes that can be used with CCA. Procion-based dyes are reactive dyes having a triazine-based reactor, which are highly reactive at low temperatures. Known as

Due to the characteristics of CCA, when the dyeing process is performed at high temperature, sludge is generated and the aging of the preservative is rapidly progressed. Therefore, the dyeing efficiency is poor. Therefore, the dyeing should be performed at room temperature unconditionally. It may be said that it was selected as the dye for manufacturing colored wood preservatives.

As described above, the color wood preservative composition of the present invention containing CCA and procion dyes has a simple composition containing a CCA aqueous solution and a procion dye, and mixed with CCA 1-3% (W / W), Preferably, 2% (W / W) aqueous solution of CCA is prepared, and 0.1-1.0% (W / W), preferably 0.5% (W / W) of procion system based on the weight of the CCA aqueous solution. It is prepared simply by mixing the dyes.

Looking at the method of color preserving wood in detail using the color wood preservative composition of the present invention prepared as follows.

In general, when dyeing wood, there are two methods, one phase method and two phase method. In general, the dyeing process is performed by adding alkali, urea and anti-reducing agents to the dye. The dye is fixed by post-drying, and the alkaline agent is removed by post-treatment. The ideal method is to dye the wood using only the dye and then fix the dye in the wood using a fixing agent.

However, due to the nature of wood preservative treatment that needs to be pressurized, it is difficult to apply the drying / fixing / post-treatment process in a short period of time to pressurizing wood, so the dyeing method according to the above method is suitable. Accordingly, in the color preservative treatment method of the present invention, a method of treating wood by an ideal method using a color wood preservative containing CCA and proon-based dyes prepared as described above was used.

First, by mixing CCA with water to prepare a 1-3% (W / W) aqueous solution of CCA, by mixing 0.1-1.0% (W / W) of the protonic dye based on the weight of the CCA solution To prepare a color wood preservative of the present invention.

Next, the prepared color wood preservative was pressurized to wood, in the present invention, the pressurization treatment was carried out using a conventional method known as a cell-cell method as follows.

First, the full distributor is applied for about 15 minutes to 1 hour at 250 mmHg or less, and the drug is introduced until the drug (color wood preservative) is completely filled into the main medicine tube (cylinder) in the state where the full distributor is applied.

Next, pressurization begins when the inflow of the drug is completed, the maximum pressure applied and the time when the maximum pressure is applied depend on the species of wood to be treated, the type of wood product and the depth and retention of the required drug. A pressure of 9-14 Kg / cm ² is used. This drug injection process continues until the drug is no longer present. Typically, two consecutive measurements of the drug's absorption in wood at 30-minute intervals result in 2% of the drug's absorption in the wood. Pressurization is carried out until less than.

After pressurization, 630mmHg is applied to the back exhaust for about 10-15 minutes, which induces the discharge of residual air trapped inside the wood that could not escape completely during the decompression, and moves some of the chemicals out of the wood along with the air. To promote dripping and consequently to prevent bleeding of the drug from the treatment.

Next, the pressurized wood (including the predecessor and the post exhauster) is immersed in an aqueous solution of a binder for 20-40 minutes to dye the dye as described above. In order to promote the binding with, as the fixing agent in the present invention, soda ash (Na ₂ CO ₃ ) was used.

As described above, when the wood is dyed and preservatives are cured at 60 ℃ for more than 24 hours, the color preservation method of the wood according to the present invention is completed.

Hereinafter, the color wood preservative of the present invention was prepared as an example as follows, and wood samples prepared by dyeing / preserving were also used for the characteristic test using the wood color preservative treatment method of the present invention.

EXAMPLE

First, 2% (W / W) of CCA aqueous solution was prepared by mixing CCA with water, and 0.1, 0.3, and 0.5% (W / W) of protons were mixed based on the weight of the CCA aqueous solution. The color wood preservative of the invention was prepared.

Next, the color wood preservative prepared by the following process was pressed on the wood.

First, the drug was introduced until the drug was completely filled into the main medicine tube (cylinder) while applying a full exhauster for 30 minutes at a pressure of 250mmHg.

Next, pressurization was carried out at a pressure of 12 Kg / cm ² until no medicament entered.

After the pressurization was completed, the remaining air was discharged by applying a back exhaust air at 630 mmHg for 15 minutes.

Next, the pressurized wood was immersed for 30 minutes using a soda ash (Na ₂ CO ₃ ) 5% (W / W) aqueous solution to dye the dye.

Finally, the wood specimens to be used for the test were prepared by curing the dyed and preserved wood at 60 ° C. for 5 days to dye the dye.

Hereinafter, the effects of the present invention were tested using wood specimens prepared as described above.

Test Example 1 Color Change Test

In the case of dyeing wood, dye components that are not fixed to the inside of the wood may change out of the treated wood over time, and the color change may occur.

This dissolution of the dye means that there is an unfixed dye in the treated specimen. In general, after dyeing the fiber, the dyeing process is completed by removing the unfixed dye. It is thought that this is because unfixed dye components remain in the wood because this is not easy.

The test was measured by the color change appearing after immersing in the distilled water for 30 days the wood specimen prepared in the above example, the results are shown in FIG.

As a result of the test, it took about 15 days for the dye to no longer dissolve from the specimen. The color after the dissolution was slightly lower in sharpness than before the dissolution, and the color after the dissolution test was lower than before dissolution. It was maintained that there was no significant difference, and it was estimated that the color problem would hardly occur, considering that the preservative material is mainly applied to wood which is generally used outdoors.

Test Example 2 Antiseptic Effect Test

In order to test the preservative efficacy of the color wood preservative of the present invention, the wood specimen prepared in Example was exposed to brown rot fungi ( Tyromyces palustris ), which is a representative fungus, for 12 weeks to measure the weight loss rate and the results thereof. Shown in

Weight reduction rate of 12 weeks treated specimens in brown fungus Treatment group Weight reduction ^{* 1} (%) Tyromyces palustris Average Standard Deviation Untreated conrol 43.94 11.10 1.5% CCA - ^{* 2} - D 0.1% 36.16 2.67 D 0.3% 32.75 3.92 D 0.5% 26.65 11.37 1.5% CCA + D 0.1% - - 1.5% CCA + D 0.3% - - 1.5% CCA + D 0.5% - -

^{* 1} 10 repetition average

^{* 2} No weight loss

As a result of the test, it was found that mixing of the dye did not lower the antiseptic effect of the CCA treatment material. In addition, the average weight loss rate of the control group was 43.94%, which confirmed that the test cell was very excellent in the wicking ability, which supported the validity of this test result.

In the dye-treated specimens, the thickening caused by the co-bacteria was very severe, but the weight loss rate was lower than that of the untreated control group, which was presumed to be due to the presence of an antiseptic effect among the dye components. It was confirmed that the weight reduction rate is further reduced.

Test Example 3 Fixing Characteristics Test

In the case of CCA-based preservatives, since the hexavalent chromium, one of the preservative active ingredients, is reduced to trivalent chromium, the settlement of wood and other components of the CCA copper and arsenic compounds is completed first. The amount of chromium remaining in the treated specimens was measured to evaluate the degree of fixation of the preservative components.

The test was carried out by measuring the settling duration, i.e. curing duration, calculated at the time when the amount of chromium present in the extrusion liquid was less than 15 ppm, according to the method suggested by Cooper and Ung. 3 is shown.

Settling time process Accelerated fixation (60 ℃) (time) Normal temperature fixing (21 ℃) (time) CCA 10.62 18.84 CCA + D 0.1% 9.63 14.02 CCA + D 0.3% 10.49 15.48 CCA + D 0.5% 10.00 15.99

As a result of the test, the time required for curing regardless of dye mixing and concentration was similar in accelerated curing and room temperature curing, so that the color wood preservative of the present invention mixed with dye negatively affected the fixation characteristics of CCA, the active ingredient. It can be seen that did not.

Test Example 4 Dissolution Characteristics Test

A total of 14 days of dissolution test was carried out using CCA alone treated specimens and specimens treated with the present invention colored wood preservatives mixed with CCA and prosion to measure the amount of accumulated dissolution of chromium, copper and arsenic as the active ingredient of preservative. The results are shown in Figure 2 (A: chromium, B: copper, C: arsenic).

As a result of the test, the cumulative leaching amount of CCA active ingredients in all treatments was in the order of arsenic> copper> chrome.

In addition, the effect of the dye mixture used in the production of the color wood preservative of the present invention on the leaching amount of the active ingredients such as chromium and copper except for arsenic was not constant, but statistically significant between CCA and color preservative treated specimens. There was no difference in cumulative leaching amount, so it could be seen that there was no effect of dye mixing on CCA leaching.

By completing the present invention as described above, color wood preservative composition containing 1-3% (W / W) CCA aqueous solution and 0.1-1.0% (W / W) procedural dye based on the weight of the CCA aqueous solution; And preparing a 1-3% (W / W) CCA aqueous solution, and mixing 0.1-1.0% (W / W) procionic dye based on the weight of the CCA aqueous solution to prepare a color wood preservative composition. , Pressurizing to 250mmHg or less, pressurizing to 9-14Kg / cm ² , and post-reating to 630mmHg, to carry out pressurization treatment, and after the pressurized wood was immersed in a fixed solution for a certain time, 60 ℃ It has been possible to provide a method of color preservation of wood consisting of dyeing dyes by curing for more than 24 hours at.

The present invention is completed, to provide a color preservation wood of the user's desired color, preservative and dyeing combined color wood preservatives to simplify the process and reduce the cost by performing the wood preservation process and dyeing treatment process at once And it is possible to provide a color preservation method of wood using the same.

1 is a view showing the color change of the specimen after immersed in distilled water for 30 days the wood sample treated with the color wood preservative of the present invention,

Figure 2 is a graph showing the cumulative dissolution of chromium, copper, arsenic after 14 days of dissolution test for wood specimens treated with the color wood preservative of the present invention.

Claims (4)

In the color wood preservative composition, Characterized in that it contains Chromated Copper Arsenate (CCA) and Procion-based dyes, Color wood preservative composition. The method of claim 1, Characterized in that it contains 1-3% (W / W) CCA aqueous solution and 0.1-1.0% (W / W) procedural dye by weight of the CCA aqueous solution, Color wood preservative composition. In the color preservation method of wood, Color wood by mixing CCA with water to produce 1-3% (W / W) CCA aqueous solution, and mixing 0.1-1.0% (W / W) procedural dye based on the weight of CCA aqueous solution. Preparing a preservative composition; Inject the drug into the main medicine tube cylinder until it is completely filled into the main tube cylinder while applying the full exhauster for 15 minutes-1 hour at a pressure of 250 mmHg or less, and measure the absorption amount of the drug in the wood twice in 30 minutes intervals. Pressurizing is carried out at a pressure of 9-14 Kg / cm ² until the absorption amount is less than 2% of the amount of the drug already absorbed, and then pressurizing is carried out by carrying out a post exhaust for 10-15 minutes at a pressure of 630 mmHg; Pressurized wood was immersed in an aqueous fixer solution for 20-40 minutes to dye dyes; The dyeing and preservation is completed by curing the wood at 60 ℃ for more than 24 hours, characterized in that the dyeing Color preservation method of wood. The method of claim 3, wherein Characterized in that the fixing agent is soda ash (Na ₂ CO ₃ ), Color preservation method of wood.