KR102311522B1 - Composition for Eliminating Formaldehyde and Odor Without Requirement of Light Irradiation - Google Patents

Abstract

The present invention relates to an amino acid-based material having an amino group and a carboxyl group, and a composition for removing odor, comprising formaldehyde and phytoncite, and a method for preparing the same. It is decomposed into carbon dioxide and removed, and the effect is 10-100 times higher than that of a photocatalyst, and it can remove formaldehyde without sunlight or lighting, so it can remove wallpaper, the back or inside of furniture, in drawers, in carpets, and in beds. It can be sprayed on the inside light to decompose formaldehyde, and it can bring about the effect of forest bathing by changing the indoor air quality to a state similar to that in the forest.

Description

Composition for Eliminating Formaldehyde and Odor Without Requirement of Light Irradiation

The present invention relates to a composition for removing formaldehyde and odor without light irradiation, and more particularly, to a composition for removing odor and formaldehyde comprising an amino acid-based material having an amino group and a carboxyl group and phytoncite, and a method for preparing the same.

Sick house syndrome, defined by the World Health Organization (WHO), is a type of chemical hypersensitivity caused by formaldehyde and volatile organic compounds (VOCs) generated from building materials and adhesives mainly used in modern buildings. Generally, abnormal symptoms can be divided into "irritant reaction" and "allergic reaction". The stimulus reaction is a symptom that occurs when the mucous membranes of the eyes, nose, and larynx are stimulated. Rarely, allergic diseases of unknown cause cause or aggravate urticaria, atopic dermatitis, bronchial asthma, etc. The largest amount is emitted 6 months after a new building is constructed, and it is known that harmful substances are continuously released from adhesives used to attach wallpaper, flooring, tiles, etc.

In the prior art for removing formaldehyde, a major substance that causes sick house syndrome, when receiving sunlight or ultraviolet energy, it generates a hydroxyl radical (Hydroxyl Radical, -OH) with oxidizing power to sterilize microorganisms or formaldehyde and volatile organic substances A number of photocatalysts for removing (VOC) are known. Distilled water is added to an organic solvent containing titanium isopropoxide (Ti(OCH(CH ₃ ) ₂ ) ₄ ), which is a photocatalyst, and then reacted while adding a strong acid to obtain a TiO ₂ photocatalyst sol. When TiO ₂ receives energy above the bandgap, one electron moves to generate an electron-hole pair, which reacts with water and oxygen in the air to generate H ₂ O ₂ , OH, etc., and the generated H ₂ O ₂ Organic substances such as formaldehyde are decomposed by , OH, etc., and as microorganisms are sterilized, H ₂ O ₂ , OH is _{converted to CO 2} or H ₂ O and used externally from the semiconductor surface. will perform

In order to prevent sick house syndrome, Korean Patent Laid-Open No. 2006-0035145 discloses (A) a method of manufacturing a non-toxic finishing material for interior and exterior materials of buildings containing acid clay, titanium dioxide, sodium polycarboxylate, etc., and the Republic of Korea Patent Publication No. 10-2004-64656 describes a mixture for adsorption and decomposition of volatile organic compounds composed of zinc oxide, manganese dioxide, acid clay, and magnetite, but a method for dramatically removing formaldehyde, the main cause of sick house syndrome, is still unknown. it is not the case. As a method of removing formaldehyde, a method of applying heat and blowing it out when moving in, ventilation method, and a method using a photocatalyst are used, but the problem that formaldehyde is generated again when use is stopped is pointed out. In the prior art, when receiving solar energy or ultraviolet energy, it generates Hydroxyl Radical (OH) with oxidizing power to sterilize microorganisms or to remove formaldehyde and volatile organic substances (VOC). Formaldehyde and volatile organic matter (VOC) can be removed, so there is a disadvantage that the range of application is limited. In addition, since simple water is used as a solvent, it is easy to decay, and sulfuric acid or nitric acid is used, so there are disadvantages of using chemicals. Existing photocatalysts are excited by moving electrons from the valence band filled with electrons to the conduction band where electrons are vacant when exposed to visible light from a fluorescent lamp or an electrothermal lamp or ultraviolet light from solar energy. In other words, when it receives energy, it creates a substance with high activity, generates hydroxy radicals with strong oxidizing power, sterilizes microorganisms, and oxidizes and decomposes toxic and volatile organic compounds (VOCs) such as formaldehyde, phenol, and TCE. In addition, it is known about visible light photocatalysts that sterilize microorganisms in air or construction-related materials or remove formaldehyde and volatile organic substances (VOCs) in the visible light of fluorescent lamps or electric heating lamps, but all of them require ultraviolet light or visible light. There are limitations in using electric energy and light during the day, so it is limited at night or in a space without light.

Accordingly, the present inventors have prepared a decomposition agent that sterilizes microorganisms in air or construction-related materials, or removes formaldehyde and volatile organic substances (VOC) without visible light such as solar energy, ultraviolet rays, fluorescent lamps, or electric heat. As a result of efforts, it was confirmed that a composition containing an amino acid-based material having an amino group and a carboxyl group and a phytoncite decomposes formaldehyde and has a sterilizing effect without light irradiation, thereby completing the present invention.

An object of the present invention is to provide an amino acid-based material having an amino group and a carboxyl group, and a composition for removing odor and formaldehyde including phytoncheat.

Another object of the present invention is to provide a method for preparing a composition for removing formaldehyde and odor.

In order to achieve the above object, the present invention provides a composition for removing odor and formaldehyde comprising an amino acid-based material having an amino group and a carboxyl group and phytoncheat.

The present invention also includes the steps of (a) adding 1 to 10% of an amino acid-based material to water at 20-50° C. to obtain an amino acid-based material solution:

(b) chopping cypress into 2-10 cm pieces, adding water ^{, boiling for 1-24 hours at 100-300 o} C, and then cooling to prepare a cypress extract; and

(c) mixing the amino acid-based material solution and the cypress extract to prepare a composition for removing formaldehyde and odor;

When the composition for removing formaldehyde and odor according to the present invention is used, the effect is 10-100 times higher than that of a photocatalyst because formaldehyde is decomposed into water and carbon dioxide and removed, and formaldehyde can be removed even without sunlight or lighting. It can be sprayed on wallpaper, the back or inside of furniture, in drawers, in carpets, in beds, etc. to decompose formaldehyde and bring about forest bathing effect by changing the indoor air quality to a state similar to that in the forest.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In general, the nomenclature used herein is those well known and commonly used in the art.

In the present invention, a sick house syndrome remover that can remove odors derived from formaldehyde or microorganisms emitted from air or building materials without irradiation with sunlight, ultraviolet rays, or visible light has been developed.

In the present invention, the amino acid-based material reacts rapidly with formaldehyde (R'-CHO) in furniture or wallpaper with the help of a delivery agent to change into R=N-CH=R' and water (H ₂ O) to remove formaldehyde. In addition, it was confirmed that the effect of removing formaldehyde from the surface of furniture or wallpaper and suppressing the emission of pollutants was confirmed. Here, phytoncide extracted from cypress trees, fruit extracts such as Cheonhyehyang, Hallabong, Red Hyang, and tangerine are mixed with silver nano substances to co-precipitate substances that decompose formaldehyde and antibacterial function, even without sunlight or fluorescent light. A sick house syndrome remover that can sterilize microorganisms and decompose and remove formaldehyde and volatile organic compounds using indoor air, wallpaper, and decorative cabinets was prepared.

Accordingly, the present invention, from one point of view, relates to an amino acid-based material having an amino group and a carboxyl group, and a composition for removing odor and formaldehyde comprising phytoncite.

The amino acid-based material usable in the present invention may include, but is not limited to, lysine, glycine, argimine, alanine, glutamine, and glutamic acid.

Phytoncide used in the present invention refers to a sterilizing substance secreted by a plant that combines phyton, meaning plants, and cide, meaning sterilizing power. It can be sprayed on wallpaper, the back or inside of furniture, in drawers, in carpets, in beds, etc. to decompose formaldehyde with a decomposing agent, and by converting the indoor air quality to a state similar to that in the forest with phytoncide, a forest bathing effect can be brought.

In the present invention, it may be characterized in that it further contains an extract derived from a fruit selected from the group consisting of cypress, cheonhyehyang, hallabong, redhyang, tangerine, lemon, apple, grapefruit, quince and lime. Cypress trees use leaves and stems, cut into 1-120cm pieces and dry for 5-10 days. Fruits such as Cheonhyehyang are cut into 1-2cm pieces and dried to 3/4-1/2 of the weight, and then added to 10 kg of raw material. Add 5-10 liters of water, distill at 50-70 degrees for 2-5 hours, and extract with a steam pressure tank of 1-100 bar for 5-20 hours to extract cypress water and cypress phytoncide oil. Cypress phytoncide oil is used by dispersing 10-100 ml of amino acid-based surfactant. In the present invention, it may be characterized in that it further contains an extract of a substance selected from the group consisting of green tea, jasmine, pine needle herb and lavender.

In the present invention, the composition may be characterized in that it further contains a silver nano material (Ag).

In one embodiment of the present invention, the phytoncide extract is co-precipitated with at least one vitamin-containing extract extracted from the fruits of Cheonhyehyang, Hallabong, Red Hyang, and tangerine, and an amino acid-based material to remove formaldehyde even without light. Specifically, the amino acid-based material rapidly reacts with formaldehyde (R'-CHO) with the help of a delivery agent to change into R=N-CH=R' and water (H ₂ O) to remove formaldehyde. Here, phytoncide extracted from cypress, one or more vitamin-containing extracts extracted from the fruits of Cheonhyehyang, Hallabong, Red Hyang, and citrus fruits are mixed with silver nano substances to co-precipitate a substance that decomposes antibacterial and formaldehyde odors.

In another aspect, the present invention provides a step of (a) adding 1 to 10% of an amino acid-based material to water at 20-50° C. to obtain an amino acid-based material solution: (b) finely cutting a cypress tree into 2-10 cm and putting it in water Boiling at 100-300 ^o C for 1-24 hours and then cooling to prepare a cypress extract; and (c) mixing the amino acid-based material solution and the cypress extract to prepare a composition for removing formaldehyde and odor.

Conventional photocatalysts react only when irradiated with ultraviolet rays, but the composition according to the present invention can decompose formaldehyde without ultraviolet rays. The amino acid-based material included in the composition of the present invention rapidly reacts with formaldehyde (R'-CHO _{) to change into R=N-CH=R' and water (H 2} O), thereby removing formaldehyde. The amino group receives a hydrogen ion and becomes positively charged, or the carboxyl group loses a hydrogen ion and becomes negatively charged. The decomposing agent has the effect of suppressing the release of pollutants from the surface of the building material.

Here, by mixing phytoncide extracted from cypress, it has the function of detailing the smell of formaldehyde, some deodorizing function, and antibacterial function. In addition, it is a co-precipitation of a silver nano material with an antibacterial function and a material that decomposes formaldehyde. Formaldehyde is decomposed into water and carbon dioxide by the active molecules generated from the decomposing agent and removed, and the effect is 10-100 times higher than that of the photocatalyst. In addition, when formaldehyde in the air moves around and comes into contact with a decomposing agent according to the gas diffusion law, it has a function to remove formaldehyde without a photocatalyst.

Hereinafter, the present invention will be described in more detail by way of Examples. These examples are merely for illustrating the present invention in more detail, and thereby it will be apparent to those skilled in the art that the technical scope of the present invention is not limited to these examples.

Example 1. Phytoncide extraction method from cypress trees and fruits

It may be characterized in that it additionally contains an extract derived from a fruit selected from the group consisting of cypress, cheonhyehyang, hallabong, red hyang, tangerine, lemon, apple, grapefruit, quince and lime. Cypress trees use leaves and stems, cut into 1-120cm pieces and dry for 5-10 days. Fruits such as Cheonhyehyang are cut into 1-2cm pieces and dried to 3/4-1/2 of the weight, and then added to 10 kg of raw material. Add 5-10 liters of water, distill at 50-70 degrees for 2-5 hours, and extract with a steam pressure tank of 1-100 bar for 5-20 hours to extract cypress water and cypress phytoncide oil. Cypress phytoncide oil is used by dispersing 10-100 ml of amino acid-based surfactant.

Example 2. Manufacturing method of sick house syndrome remover

Cut cypress, cheonhyehyang, hallabong, red hyang, tangerine, and lemon into 2-10cm each, and boil at 100-300℃ for 5-24 hours at a ratio of 20 water added to 1kg of each fruit. After cooling the liquid or mixture, it was aged to obtain a clean extract.

Add 50-1000mL (1-10%) of glutamine and glycine-based amino acid-based substances to 5-10L of lukewarm water (sterilized water) at 20-50℃, and 0.5-10mL (0.001-0.1%) silver nano-material (Ag). ) to prepare a mixed solution at 20-50 rpm for 5-10 hours or more.

Add 5-15L (25-75%) of fruit extract of cypress, cheonhyehyang, hallabong, red hyang, tangerine, and lemon to 5-15L of the amino acid-based substance mixture solution, mix at 20-50rpm for 5-10 hours, and formaldehyde and odor A sick house syndrome remover that can remove

Example 2. Formaldehyde decomposition ability of sick house syndrome remover

As a result of analyzing the decomposition rate of formaldehyde in the sick house syndrome remover prepared in Example 1 by putting formaldehyde in a 2L container, 89.8% and 91.8% of formaldehyde were decomposed after 30 minutes and 120 minutes, respectively (Table 1).

Removal of formaldehyde decomposition by sick house syndrome remover division Analytical sample hours (minutes) Early 30 60 90 120 Concentration (ppm) Blank 50 49 49 49 48 sample 50 6 5 5 4 efficiency 89.8 89.8 89.9 91.8

Example 3. Confirmation of antibacterial power of sick house syndrome remover

The antibacterial ability of the sick house syndrome remover prepared in Example 1 was investigated.

Each of the microorganisms ( Klebsieia pneumoniae ATCC 4352, Staphylococcus aureus ATCC 6538) was sprayed once (about 0.02 ml) of the sick house syndrome remover prepared in Example 1 to a Petri dish in which the initial concentrations shown in Table 1 were incubated (about 0.02 ml), then 35 After culturing with shaking at 150°C for 24 hours and under irradiation conditions under fluorescent light, the number of bacteria was measured.

Antibacterial test results, Klebsieia pneumoniae ATCC 4352 is the initial concentration of 99.9% to less than 99.9%, Staphylococcus aureus ATCC 6538 was is 10 18 hours at an initial concentration of 3.4x10 ⁷ to not more than 10 yieoteuna 2.3x10 ^6, 18 hours after the Removal efficiency was shown (Table 2).

Sick house syndrome remover Antibacterial power Test Items Test result test environment Initial concentration (CFU/mL) Concentration after 18 hours (CFU/mL) Bacteria reduction rate (%) Antibacterial test by Pseudomonas aeruginosa control 2.8x10 ⁴ 2.8x10 ^{6 -} 37.0 ^o C sample 2.3x10 ⁶ <10 99.9 Antibacterial test by Staphylococcus aureus control 2.2x10 ⁴ 2.2x10 ⁴ - sample 3.4x10 ⁷ <10 99.9

Inoculation bacterial concentration (CFU/mL): Pseudomonas aeruginosa: 2.8x10 ⁴ , Staphylococcus aureus: 3.4x10 ⁷

Strain used: Pseudomonas aeruginosa ATCC 15442

Staphylococcus aureus ATCC 6538

As the specific parts of the present invention have been described in detail above, it will be apparent to those of ordinary skill in the art that these specific descriptions are only preferred embodiments, and the scope of the present invention is not limited thereby. will be. Accordingly, it is intended that the substantial scope of the invention be defined by the claims and their equivalents.

Claims (9)

A 1~10% aqueous solution of an amino acid-based substance having an amino group and a carboxyl group, a cypress extract, a fruit extract selected from the group consisting of Cheonhyehyang, Hallabong, Red Hyang, tangerine, lemon, apple, grapefruit, quince, and lime as active ingredients The volume ratio of the cypress extract and the fruit extract to the aqueous solution of the amino acid-based substance is 1 to 3:1 to 3, and 25-75% (v/v) of the cypress extract and the fruit extract, The silver nano material is contained in an amount of 0.0001 to 0.1% (v/v), and the amino acid-based material reacts with formaldehyde (R'-CHO) without light irradiation to R=N-CH=R' and water (H ₂ O) A composition for removing formaldehyde, characterized in that it is converted to remove formaldehyde.
delete The composition according to claim 1, further comprising an extract of a substance selected from the group consisting of green tea, jasmine, pine needle herb and lavender.
delete A method for preparing a composition for removing formaldehyde and odor comprising the following steps;
(a) 1 to 10% of an amino acid-based material is added to water at 20-50° C., 0.001 to 0.1% of a silver nano material is added, and stirred at 10 to 100 rpm for 5 to 10 hours to prepare an amino acid-based material mixture step:
(b) Cut into 2-10cm pieces of cypress, a fruit selected from the group consisting of hallabong, red tangerine, tangerine, lemon, apple, grapefruit, quince and lime, and add water at 100-300 ^o C for 5-24 Boiling time and then cooling to prepare an extract; and
(c) preparing a composition for removing formaldehyde by mixing the amino acid-based material mixture and the extract in a volume ratio of 1-3:1-3 and stirring at 10-100 rpm for 5-10 hours.
delete The method according to claim 5, wherein in step (c), green tea extract, jasmine extract, pine needle herb extract, and lavender extract are additionally contained.
delete delete