KR101404020B1 - Lacquer and allergy reduction and improves the drying speed manufacturing methods - Google Patents

Abstract

The present invention relates to a lacquer manufacturing method for relieving allergic reaction and accelerating drying. The lacquer manufacturing method manufactures lacquer by performing the following steps: manufacturing a first polymer by making urushiol, hydrophilic monomers and oxidizing agents react; manufacturing hydrophilic salt by neutralizing the first polymer with a neutralizing agent; manufacturing an emulsion having nanoparticles by adding water to the hydrophilic salt; manufacturing a polyurushiol aqueous solution by manufacturing a second polymer by mixing an oxidizing agent and the emulsion; manufacturing a raw lacquer solution by adding the polyurushiol aqueous solution to raw lacquer; and manufacturing lacquer with reduced allergic reaction and improved drying speed by adding a tertiary amine based catalyst to the raw lacquer solution including the polyurushiol.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a lacquer,

The present invention relates to a method for improving the allergen reduction and drying speed of the raw lac to enhance the productivity by increasing the rate of drying by using a catalyst to reduce the content of urushiol by decreasing the content of urushiol by adding polyurusol free of lacquer allergy And a manufacturing method thereof.

Rhus verniciflua or Rhus vernicifera ) is a deciduous tree belonging to Anacardiaceae . It is originated from the Central Asian Highlands and the Himalayas. It is widely distributed in the subtropics and temperate regions around the world. It is widely distributed in Korea, China and Japan. It is used as a natural paint in crafts and household goods in East Asia.

Raw lacquer or rhubarb extract collected from lacquer trees promotes blood circulation in one room and is known to be effective against various diseases such as insecticide and fungicide such as insecticide, abdominal pain, tuberculosis, constipation, constipation, diabetes and schizophrenia. Lacquer, and lacquer are used in medicinal dishes such as duck. In recent years, scientific research on the efficacy of traditional lacquer has been carried out.

Urushi is made up of urushiol, water, gum, lacase and nitrogenous substance. Urushiol is the main component of 70% of the rusk liquor, which is a 3-substituted (8'Z, 11'E, 13'Z-pentadecatrienyl) catechol (3- (8'Z, 11'E, 13'Z, 'Z-pentadecatrienyl) catechol). Up to now, thirteen components of 3-substituted alkylcatechols having 0, 1, 2 or 3 double bonds in the C15 side chain have been identified (Yumin Du and Ryuichi Oshima, J. of Chromatography, 284, 463-473 (1984) , And urushiol is a mixture of these monomers and polymers which are naturally polymerized monomers by the racecases. Yamauchi, Y., R. Oshima and J. Kumanotani, J. of Chromatography, 243, 71-83 (1981), J. of Chromatography, 84 (1982), and Y. Du, R. Oshima and H. Iwatsuki, J. of Chromatography, 295, 179-186 (1984)).

Urushiol, which is a major constituent of lacquer, has been reported to cause allergic reaction in the early stage. Since then, its strong antioxidant ability, antibacterial power, waterproofing, chemical resistance, insecticide and preservative effect have been proved and chemically proved durability traditionally possessed by lacquer I got it. In addition, urushiol did not have a significant effect on normal cells, and killed cancer cells selectively, thus showing possibility as an anticancer drug. Based on these basic effects, effective and various extraction methods and practical applications of urushiol have been studied.

However, unlike the synthetic resin paint, the conventional lacquer has a problem that the workability is high and the price is high because of its characteristic of being dried under specific environmental conditions (relative humidity 70%, 20 to 25) in which humidity is high. In addition, lacquer has a disadvantage in that it is difficult to use it for living products and industrial residues due to naturally added additives and water, and it can not solve side effects that cause allergic phenomenon upon skin contact.

Attempts to apply purified urushiol by removing impurities contained in such lacquer have been reported in Korean Patent Application No. 10-1999-0016473 (a method for producing ultra-fine particles of urushiol-ethanol and an anticancer composition containing the same), Korean Patent Application No. 10- Korean Patent Application No. 10-1999-0016473 (urushiol-ethanol ultra-fine particles excellent in anticancer effect), Korean Patent Application No. 10-1999-0001740 (antioxidant activity of urushiol compound As an anticancer agent and methods for producing the same).

Various efforts have been made to use refined urushiol, but until now, the development of lacquer has focused on the separation of refined urushiol and the development of new applications. Therefore, Have been used in a limited manner.

In order to solve these problems, Korean Patent No. 1205267, entitled " Method for producing a polyuric acid nano-aqueous solution and a polyurusiol powder using the same, and its use ", discloses a method for producing an anti- Cosmetics, textile dyeing, water-based paints, plastics and the like, by removing side effects.

It is an object of the present invention to provide a method for producing natural lacquer which reduces allergies and increases the drying speed, and dilutes the raw lacquer with polyurusiol aqueous solution, and furthermore, by adding an amine-based additive, And to provide a method of manufacturing lacquer which improves the drying speed.

According to the present invention,

Reacting urushiol, a hydrophilic monomer and an oxidizing agent to prepare a first polymer;

Neutralizing the first polymer with a neutralizing agent to prepare a hydrophilic salt;

Adding water to the hydrophilic salt to prepare an emulsion having nanoparticles; And

Mixing an emulsifier with an oxidizing agent to prepare a second polymer; preparing a polyurusol aqueous solution comprising the emulsion;

Adding the aqueous polyurusol solution to raw lacquer to prepare a bioliquid lacquer;

And adding a tertiary amine-based catalyst to the polyvinyl alcohol-containing polyvinyl alcohol solution to prepare lacquer.

The present invention will be described in more detail as follows.

In the present invention, polyurusiol aqueous solution is added to raw lacquer to reduce the allergy content of uric acid by decreasing urushiol content, which is an allergy component of lacquer, and to maintain the efficacy of lacquer. The amount of the polyurusol aqueous solution is preferably 1 to 30 parts by weight, more preferably 10 to 15 parts by weight, based on 100 parts by weight of the raw varnish.

When polyurusiol aqueous solution is added, polyurusol combines the function of a filler to increase the strength of the coating. Further, the tertiary amine can not carry out the addition reaction because the active hydrogens of the amine are all substituted with hydrocarbons, and act as a uriciol-containing catalyst.

The available tertiary amines are DBU (1,8-Diazabicyclo (5,4,0) Undecene-7), BDMA (Benzyl Dimethyl Amine), and Tris-2,4,6 Dimethyl Amino Methyl-Phenol , And DBU has the greatest effect. The amount of the catalyst to be used is suitably 0.1 to 5 parts by weight, preferably 0.5 to 2 parts by weight, per 100 parts by weight of the polyurusiol aqueous solution + raw lacquer. When the catalyst is added in an amount of 0.1 part by weight or less, the effect of the drying speed is small, and even if the amount is 5 parts by weight or more, the effect of the drying speed is small. As a catalyst for accelerating the drying speed of raw lacquer, it is possible to shorten the period of time in which a typical drying rate takes 4 to 6 hours at a temperature of 25 ° and a humidity of 80% to 1 to 2 hours.

As described above, the polyurusol aqueous solution prepared according to the present invention and the fresh green lacquer added with the tertiary amine have a high drying speed and a high hardness, thereby increasing the production speed of the lacquer artwork and contributing to the improvement of the productivity. The durability of the product can be increased.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a process for manufacturing an allergen reducing and drying lacquer according to the present invention. FIG.

Hereinafter, the structure of the present invention will be described in detail with reference to examples. However, the scope of the present invention is not limited by the following examples.

FIG. 1 is a view showing an allergen reducing and drying speed of the present invention. As shown therein,

(S20) a step of preparing a hydrophilic salt by neutralizing the first polymer with a neutralizing agent (S20), adding water to the hydrophilic salt to prepare a nanoparticle (S30) mixing the emulsion with an oxidizing agent to prepare a second polymer to prepare a polyurusol aqueous solution (S40), and adding the polyurusol aqueous solution to the raw lacquer to prepare a bioliquid (S50), and adding a tertiary amine-based catalyst to the polyvinyl alcohol-containing polyvinyl alcohol solution to produce an allergen reducing and drying speed varnish (S60).

The present invention relates to a method for producing a lacquer which is improved in allergy reduction and gum speed by mixing a polyurusol aqueous solution with a natural lacquer and a catalyst, wherein the urushiol content of the lacquer is reduced by adding a polyurusol aqueous solution to the natural lacquer to reduce allergy , Polyurusiol aqueous solution is added to maintain the efficacy of lacquer.

In the step of preparing the green lacquer solution (S50), the mixing ratio of the raw lacquer and the polyurusol aqueous liquid is 1 to 30 parts by weight of polyurusol aqueous solution to 100 parts by weight of the raw lac, and the mixture is stirred. Most preferably, 10 to 15 parts by weight of the polyurusol aqueous solution is a preferable mixing ratio with respect to 100 parts by weight of the raw varnish.

When polyurusiol aqueous solution is added to raw lacquer, polyurusol combines the function of a filler to increase the strength of the film.

As described above, a green lacquer to which a polyurusol aqueous solution is added is prepared by adding a tertiary amine-based catalyst as a catalyst (S60). The tertiary amine can not carry out the addition reaction because the active hydrogens of the amine are all substituted with hydrocarbons, and act as a uriciol-containing catalyst.

The available tertiary amines are DBU (1,8-Diazabicyclo (5,4,0) Undecene-7), BDMA (Benzyl Dimethyl Amine), and Tris-2,4,6 Dimethyl Amino Methyl-Phenol , DBU has the greatest effect, and 0.1 to 5 parts by weight of a catalyst is added to 100 parts by weight of 'polyurusiol aqueous solution + raw lacquer'.

And most preferably 0.5 to 2 parts by weight. When the catalyst is added in an amount of 0.1 part by weight or less, the effect of the drying speed is small, and even when 5 parts by weight or more is added, the drying speed effect is small. As a catalyst for accelerating the drying speed of raw lacquer, it is possible to shorten the period of time in which a typical drying rate takes 4 to 6 hours at a temperature of 25 ° and a humidity of 80% to 1 to 2 hours.

EXAMPLES Example 1 A polyurusol aqueous solution and a DBU (1,8-Diazabicyclo (5,4,0) Undecene-7)

 ① 1 kg of raw lacquer was added to a 5-liter glass beaker, 20 g of DBU was added, and the mixture was stirred at 1,000 rpm for 15 minutes. ② 1 kg of raw lacquer was added to a 5-liter glass beaker, 100 g of polyurusiol aqueous solution and 20 g of DBU were added, and the mixture was stirred at 1,000 rpm for 15 minutes. 100 g of fresh raw lacquer (100 g) and 100 g of each sample were collected from ① and ②, and then mixed with 100 ml of telempun oil. The method of painting is as follows: 1, 2 times, 3 times, 4 times, 5 times, 6 times, 7 times, 8 times, .

One 2 3 4 5 6 7 8 9 Raw stalk 4 hours 30 5 hours 5 hours 5 hours 5 hours 5 hours and 30 minutes 5 hours and 30 minutes 5 hours and 30 minutes 5 hours and 30 minutes ① 2 hours 2 hours 30 minutes 2 hours 30 minutes 2 hours 30 minutes 2 hours 2 hours 30 minutes 3 hours 3 hours 3 hours ② 1 hour 30 minutes 1 hour 30 minutes 1 hour 30 minutes 1 hour 30 minutes 2 hours 2 hours 2 hours 2 hours 2 hours

As a result of the above experiment, it was found that the drying speed was 4 hours and 30 minutes for a sample coated with a green lacquer, and the drying speed was 2 hours for a sample coated with a polyurusol aqueous solution, It can be seen that the drying speed of the specimen coated with the catalyst added solution was 1 hour and 30 minutes. Likewise, when the sample was repeatedly applied 9 times, it was found by experiment that the sample coated with the raw lacquer had a drying time of 5 hours and 30 minutes, that of the sample coated with the sample was 3 hours, and that of the sample coated with the sample was 2 hours .

As a result, it was found that when the aqueous solution of polyurusol was added to the raw lacquer and the catalyst was added to the raw lacquer to which polyurusol was added, the drying time was much shorter than that of the conventional raw lacquer.

In addition, the sample was repeatedly poured into a pencil at a speed of 500 g, angle of 45 °, and 3 mm / sec, to scratch the sample.

Raw stalk ① ② HB H 2H

As a result of the scratch test, hardness HB was obtained in the specimen coated with raw lacquer, hardness H in specimen coated with specimen ①, and hardness 2H in specimen coated specimen. Therefore, it was found that the addition of polyurusol aqueous solution or the addition of a catalyst to polyuric acid - added lacquer, compared to that of natural lacquer,

In addition, the test pieces painted 8 times and 9 times were kept at 30 ° with a razor, and 100 sheets (10 x 10) of the checkerboards were passed through the coating film so as to come into contact with the substrate, and after the cellophane adhesive tape was completely adhered, And the state of peeling of the eyes was confirmed.

Raw stalk ① ② 8 times 0/100 0/100 0/100 9 times 0/100 0/100 0/100

As a result, it was found that the adhesion was not deteriorated even when the polyurusol aqueous solution and the catalyst were added to the raw lacquer in the same state of the raw lacquer, the first sample and the second sample.

Although this test showed that polyurusol and DBU were added, the drying speed was fast and the pencil hardness was stronger without deteriorating the adhesion.

S10: Production of first polymer Step S20: Production of hydrophilic salt
S30: emulsion production step S40: polyurusol aqueous liquid production step
S50: Addition of polyurusol aqueous solution to raw lacquer
S60: Catalyst addition step

Claims (4)

(S10) reacting urushiol, a hydrophilic monomer and an oxidizing agent to prepare a first polymer;
(S20) of neutralizing the first polymer with a neutralizing agent to prepare a hydrophilic salt;
Adding water to the hydrophilic salt to prepare an emulsion having nanoparticles (S30);
Mixing the emulsion with an oxidizing agent to prepare a second polymer to prepare an aqueous polyurusol solution (S40);
A step (S50) of preparing a green lacquer by adding the polyurusol aqueous solution to raw lacquer;
(3) adding a tertiary amine-based catalyst to the polyvinyl alcohol-containing polyvinyl alcohol, and (5) preparing a polyvinyl alcohol-containing polyvinyl alcohol-based catalyst; and Lacquer manufacturing method.
[7] The method according to claim 1, wherein the mixing ratio of the raw lacquer and the polyurusol aqueous solution in the step (S50)
And 1 to 30 parts by weight of polyurusiol aqueous solution is added to 100 parts by weight of raw lacquer and stirred.
The method according to claim 1, wherein the catalyst addition step (S60)
As a tertiary amine series catalyst,
Allergen reduction and drying, characterized in that it is any one of DBU (1,8-Diazabicyclo (5,4,0) Undecene-7), BDMA (Benzyl Dimethyl Amine) and Tris-2,4,6 Dimethyl Amino Methyl- Speed improvement lacquer manufacturing method.
The method according to claim 1, wherein the catalyst addition step (S60)
Wherein the catalyst is added in an amount of 0.1 to 5 parts by weight based on 100 parts by weight of the polyurusol aqueous solution + raw lacquer.

Images