TW201538225A - Aqueous formaldehyde scavenger composition - Google Patents

Abstract

An aqueous formaldehyde scavenger composition is provided. The aqueous formaldehyde scavenger composition includes at least a pharmaceutical grade polyvinylpyrrolidone (PVP), a pharmaceutical grade polyvinyl alcohol (PVA), a pharmaceutical grade polyvinyl alcohol-polyethylene glycol (PVA-PEG) copolymer, or a combination thereof, a chitosan, at least a natural amino acid or its derivatives, and at least an antimicrobial agent. The pH of the aqueous formaldehyde scavenger composition is in a range of 4 to 7.

Description

Aqueous aldehyde removal composition

This invention relates to an aqueous composition, and more particularly to an aqueous aldehyde removal composition for the adsorption of harmful formaldehyde in the air.

Formaldehyde resin is commonly used in a variety of building materials, including insulation panels, plywood, wood furniture, carpets, curtains, wallpaper, decorative materials and so on. However, formaldehyde is a toxic substance that has a negative impact on human health and has been identified as a carcinogenic and teratogenic substance by the World Health Organization. After the home is finished, the indoor air often contains a high concentration of formaldehyde, which has a pungent odor. The irritancy of formaldehyde gradually fades over time, but in reality it still exists indoors. In addition, products containing formaldehyde will continue to release formaldehyde slowly, making the interior a threatening environment for human health.

At present, for the problem of indoor formaldehyde pollution, various preventive measures and products have been studied, and in addition to formaldehyde spray and formaldehyde removal coatings have received more attention. However, most of the ingredients in the market for formaldehyde removal sprays and coatings are industrial grades. In more detail, there are two types of formaldehyde sprays and coatings on the market, including A strong base type of industrial grade amine having a pH of about 9 to 11; and a weak acid form using chitin having a pH of about 3 to 5. When the human body is in the indoor environment using the above sprays and coatings for a long time, it may have adverse effects on health. In addition, when the above spray and coating are applied to the surface of the iron, it is liable to cause oxidation or corrosion of the iron. Therefore, there is a need for a formaldehyde-removing spray composition that is harmless to the human body and that is suitable for use indoors without damaging the iron product.

The present invention provides an aqueous aldehyde removing composition which has the property of adsorbing harmful formaldehyde and has a pH of about 4 to 7 and is harmless to the human body.

The present invention provides an aqueous aldehyde removal composition comprising at least one water soluble film former, water soluble chitosan, at least one natural amino acid or derivative thereof, at least one antimicrobial agent, and water. The water-soluble film-forming agent is selected from the group consisting of pharmaceutical grade polyvinylpyrrolidone (PVP), pharmaceutical grade polyvinyl alcohol (PVA), pharmaceutical grade polyvinyl alcohol-polyethylene glycol (PVA-PEG) copolymer or A group of combinations. The content of the film-forming agent is 0.1% by weight to 10% by weight, the content of the water-soluble chitin is 0.1% by weight to 0.5% by weight, and the natural amino acid or its derivative is 100% by weight of the aqueous aldehyde-removing composition. The total content of the substance is from 0.1% by weight to 10% by weight, the content of the antibacterial agent is from 0.1% by weight to 1.0% by weight, and the content of water is from 85% by weight to 95% by weight. The pH of the aqueous aldehyde removal composition is in the range of 4 to 7.

In an embodiment of the invention, the medical grade PVP is selected from the group consisting of The group consisting of PVP of K-12, K-15, K-17, K-25, K-30, K-60, K-90, K-120.

In an embodiment of the invention, the chitin is hydrolyzed low molecular weight chitin, and the 1% by weight aqueous solution has a viscosity of less than 10 cps.

In an embodiment of the invention, the above natural amino acid or derivative thereof is selected from the group consisting of glycine, arginine, lysine or a derivative thereof. group.

In an embodiment of the present invention, the above-described antimicrobial agents are selected from the group consisting of consisting of ^{Citricidal TM, Progarda TM, Protectene TM} , BioCitro TM or Citrox ^TM.

Based on the above, the aqueous aldehyde-removing composition for a formaldehyde-removing agent of the present invention can adsorb harmful formaldehyde substances and achieve an effect of improving the indoor environment. Furthermore, the aqueous aldehyde-removing composition of the present invention is water-soluble, and can reduce the amount of volatile organic solvent used, and its components are harmless to the human body. Therefore, even if the spray containing the aqueous aldehyde-removing composition is used for a long period of time, it does not endanger human health. Further, since the aqueous aldehyde removing composition of the present invention is weakly acidic to neutral (pH 4 to 7) and does not cause iron rust, it is suitable for use indoors.

To make the above features and advantages of the present invention more apparent, the following specific embodiments are described in detail below.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a graph showing the relationship between formaldehyde concentration and time of formaldehyde removal ability of an aqueous aldehyde removal spray comprising an aqueous aldehyde removal composition according to Example 1 of the present invention.

Fig. 2 is a graph showing the relationship between the formaldehyde concentration and the time of formaldehyde removal ability of an aqueous aldehyde removal spray comprising an aqueous aldehyde removal composition according to Examples 1 to 3 of the present invention.

According to an embodiment of the invention, the aqueous aldehyde removal composition comprises at least one A water-soluble film-forming agent, water-soluble chitin, at least one natural amino acid or a derivative thereof, at least one natural antibacterial agent, and water. The various components of the aqueous aldehyde removal composition will be described in detail below.

The water-soluble film-forming agent is selected from the group consisting of pharmaceutical grade polyvinylpyrrolidone (PVP), medical A group consisting of pharmaceutical grade polyvinyl alcohol (PVA) and a pharmaceutical grade polyvinyl alcohol-polyethylene glycol copolymer (PVA-PEG) or a combination thereof. The water-soluble film-forming agent has good biodegradability, oil resistance and organic solvent resistance in addition to good water solubility and film formability. In addition, pharmaceutical grade polyvinylpyrrolidone (PVP), pharmaceutical grade polyvinyl alcohol (PVA) and pharmaceutical grade polyvinyl alcohol-polyethylene glycol copolymer (PVA-PEG) are highly toxic, migenic, skin irritation and other toxicity It was confirmed to be non-toxic during the test. Among the above water-soluble film-forming agents, polyvinylpyrrolidone (PVP) is preferred from the viewpoint of water solubility and process convenience.

In this embodiment, the average degree of polymerization of polyvinylpyrrolidone (PVP) can be K-12, K-15, K-17, K-25, K-30, K-60, K-90 or K-120. Worth It is mentioned that, based on the water solubility and film formability, it is preferable to use P50 of K30, which can balance the required water solubility and film formability. In particular, the PVP of K30 only needs to be stirred at room temperature to dissolve in water. The content of polyvinylpyrrolidone (PVP) may be from 0.1% by weight to 10% by weight, and preferably from 1% by weight to 5% by weight, based on 100% by weight of the aqueous aldehyde-removing composition.

In general, chitin is a long-chain molecule composed of about 8,000 monomers, which is deacetylated by a nitrogen-containing polysaccharide biopolymer, that is, an ethyl group is removed to form an amine group. The polyglucosamine (i.e., chitosan) obtained later. It is worth mentioning that chitin can react with it after adsorbing formaldehyde in the air. In detail, the amine group (-NH ₂ ) of chitin can react with formaldehyde (HCHO) to form a bond and be adsorbed and fixed, and the product after the reaction is a harmless substance. Therefore, chitin can convert formaldehyde in the air into harmless substances and achieve the purpose of purifying the air. In addition, chitin has excellent characteristics in the ecosystem that are easy to decompose and easy to regenerate, so it does not cause secondary pollution. The reaction mechanism of the above amine group (-NH ₂ ) with formaldehyde (HCHO) is as follows:

In the aldehyde-removing composition conventionally used for improving air, since high molecular weight chitin is insoluble in water, it is necessary to additionally add acetic acid to dissolve high molecular weight chitin. However, the addition of acetic acid causes a decrease in the pH of the entire aldehyde composition, which tends to cause corrosion of the iron, and is also liable to cause discomfort to the user in terms of odor. Conducive to long-term use in indoor environments. In the aqueous aldehyde removing composition of the present invention, low molecular weight chitin which has been subjected to hydrolysis treatment in advance is used, which has previously removed excess acid in the production process, and therefore, the above acidity and odor problem of the aqueous chitin solution can be effectively avoided. The above low molecular weight chitin is water soluble, and its 1% by weight aqueous solution has a viscosity of less than 10 cps.

The content of the water-soluble chitin is from 0.1% by weight to 0.5% by weight based on 100% by weight of the aqueous aldehyde-removing composition, but the invention is not limited thereto.

In the present embodiment, the aqueous aldehyde removal composition further includes a natural amino acid or a derivative thereof. Similar to chitin, the amino group of the amino acid (-NH ₂ ) can be bonded to formaldehyde (HCHO) to form a bond and adsorbed, and the product after the reaction is a harmless substance. The above amino acid or a derivative thereof is preferably selected from the group consisting of glycine, arginine, lysine or a derivative thereof. From the viewpoint of the ability to adsorb formaldehyde, it is more preferably arginine or lysine. It should be noted that in the present embodiment, the natural amino acid or a derivative thereof may be used singly or in combination of two or more, and the present invention is not limited thereto. The content of the natural amino acid or its derivative (the total content in the case where it is used in combination of plural kinds) is from 0.1% by weight to 10% by weight based on 100% by weight of the aqueous aldehyde-containing composition. The natural amino acid or its derivative of the present embodiment and the product thereof after reacting with formaldehyde are harmless to the human body, and therefore, even if it is used for a long period of time, it does not affect the human body.

It is worth mentioning that natural amino acids or their derivatives belong to low molecular weight molecules compared to chitin. Therefore, the natural amino acid itself is water soluble without any treatment. Further, in the aqueous aldehyde removing composition of the present embodiment, the low molecular weight natural amino acid is easily moved to the surface of the aqueous aldehyde removing composition, and further It can increase the probability of reaction of amino acid with formaldehyde. In detail, formaldehyde can be adsorbed first by chitin in the aqueous aldehyde removing composition of this example. The adsorbed formaldehyde can then be first reacted with chitin and further reacted with an amino acid that moves to the surface of the aqueous aldehyde removal composition. In this way, the aqueous aldehyde removal composition of the present embodiment can effectively adsorb formaldehyde in the environment.

In addition, in a neutral environment, chitin and natural amino acids or their derivatives can be combined with a negatively charged moiety on the surface of the cells by a positively charged amine group (-NH ₂ ). This in turn kills bacteria. Therefore, in addition to adsorption of formaldehyde, chitin and natural amino acids or derivatives thereof can also provide a bactericidal effect.

In this embodiment, the aqueous aldehyde removal composition further comprises at least one antimicrobial agent. Optionally an antibacterial agent consisting of Citricidal ^TM (available from Bio / Chem Research Corporation), Progarda ^TM (available from Phyto Innovative Products Ltd technology company), Protectene ^TM (available from HOLISTA COLLTECH Corporation), BioCitro ^TM (available from Quinabra Corporation) or Citrox A group consisting of ^TM (available from Citrox (NZ) Ltd). However, the present invention is not limited thereto, and any water-soluble substance having an antibacterial effect is suitable for the aqueous coating composition of the present invention. It is worth mentioning that the main components of the above antibacterial agent are grapefruit seed extract and pharmaceutical grade glycerin, all of which are harmless to the human body and are all water soluble. The content of the antibacterial agent is from 0.1% by weight to 1.0% by weight based on 100% by weight of the aqueous aldehyde-removing composition.

In particular, in the present embodiment, since the above various components of the aqueous aldehyde-removing composition are all water-soluble, water can be used as the main solvent of the aqueous aldehyde-removing composition without adding any organic solvent and for acidification. Acetic acid to reach the ring at the same time It is safe and harmless to the human body.

It is worth mentioning that the aqueous aldehyde-removing composition consisting of the above components The pH is in the range of 4 to 7. Therefore, even if the spray containing the aqueous aldehyde removing composition of the present embodiment is applied to the surface of the iron, the iron rust is not caused. In addition, even if the human body is exposed to the environment containing the above aqueous aldehyde-removing composition for a long time, it does not affect the health of the human body.

The aqueous aldehyde removing composition of the present embodiment can be applied to a formaldehyde removing spray, The invention is not limited to this. Since the above water-soluble film-forming agent, water-soluble chitin, natural amino acid or derivative thereof, antibacterial agent and water can be uniformly mixed, a spray composition which is uniformly mixed and has stable physical properties can be formed. The invention does not limit the manner in which the spray is used. For example, the spray may be a method of hand pressing to spray the aqueous aldehyde-removing composition of the present embodiment contained in a spray can. Alternatively, the aqueous aldehyde-removing composition may be sprayed with a pressure difference by mixing the gas-filled tank with the aqueous aldehyde-removing composition under a specific pressure. The above gas is, for example, carbon dioxide or an inert gas. The pressure is not particularly limited as long as the gas can be filled in the tank. The volume ratio of the gas introduction amount to the aqueous aldehyde removal composition is, for example, 1:1 to 1:2, but the present invention is not limited thereto. The following describes how to use the spray containing the aqueous aldehyde removal composition of the present embodiment to purify the air in the room.

First, the above spray containing the aqueous aldehyde-removing composition is uniformly sprayed on On a surface or in a space, the aqueous aldehyde removal composition forms a transparent film at the point where it can adhere to the surface or space. The above surface is, for example, a wall surface of a building or a surface of furniture, and the above space is, for example, an indoor space. Next, exposing the above surface or space to In an environment with harmful substances of formaldehyde. Then, by the above-mentioned adsorption characteristics of the chitin and the amino acid, the formaldehyde can be adsorbed and converted into a harmless substance to achieve the purpose of air purification. In detail, formaldehyde can be first adsorbed by chitin in an aqueous aldehyde removal composition. The adsorbed formaldehyde can then be first reacted with chitin and further reacted with an amino acid that moves to the surface of the aqueous aldehyde removal composition. As a result, the spray containing the aqueous aldehyde-removing composition of the present embodiment can effectively adsorb formaldehyde in the environment. Hereinafter, the preparation method of the aqueous aldehyde removing composition and the ability to adsorb formaldehyde according to an embodiment of the present invention will be described in detail by a plurality of experimental examples.

[Preparation method of aqueous aldehyde spray]

First, 0.1% by weight to 10% by weight of polyvinylpyrrolidone (PVP) is mixed with water in a first stirred tank. After preliminary mixing and stirring for 10 to 20 minutes, the mixture is then heated and stirred to completely dissolve polyvinylpyrrolidone (PVP) in water. The temperature and the stirring time of the heating and stirring are not particularly limited as long as the polyvinylpyrrolidone (PVP) can be completely dissolved in water. Preferably, the heating temperature does not exceed 70 ° C to avoid excessive moisture loss or to avoid overheating coking or agglomeration of PVP in the stirred tank. Then, the mixture was cooled to room temperature or below 30 ° C for use as a first mixture.

Next, 0.1% by weight to 0.5% by weight of chitin is mixed with water in a second stirred tank. After preliminary mixing and stirring for 10 to 20 minutes, the antibacterial agent was added under continuous stirring. Then, the stirring was continued to completely dissolve the chitin, and the mixture was prepared into a second mixture.

Further, 0.1% by weight to 10% by weight of the amino acid or a derivative thereof is mixed with water in the third stirring tank. After initial mixing for 10 to 20 minutes, in continuous The antibacterial agent was added under stirring. Then, the amino acid or its derivative is completely dissolved by continuous stirring to prepare a third mixed liquid.

Then, the second mixture is mixed under the stirring of the first mixture The liquid and the third mixture are slowly added to the first mixture, respectively. Stirring is continued for about 25 to 35 minutes, and after the first mixed liquid, the second mixed liquid, and the third mixed liquid are uniformly mixed, the stirring speed is gradually slowed down until stopping to avoid generation of bubbles in the mixed liquid. Finally, an aqueous aldehyde removal spray can be obtained by filling the uniformly mixed aqueous aldehyde removal composition into a container.

The preparation method of the aqueous aldehyde spray is not limited to the above, since all The ingredients are all water-soluble, so the preparation process can be arbitrarily exchanged for the dissolution and mixing sequence of the raw materials, and even all the raw materials can be directly mixed in the same stirring tank. In addition, the mixing is not limited to heating, as long as the stirring time is long enough, all the raw materials can be naturally dissolved into a uniform mixture under normal room temperature conditions. Those having ordinary skill in the art can modify the preparation process independently of the capabilities of the existing equipment and the production schedule without affecting the performance of the aqueous aldehyde-removing composition comprising the present embodiment. In order to more clearly illustrate the specific technical contents of the present invention, an aqueous aldehyde-removing composition according to various embodiments of the present invention is provided, and the respective constituents thereof are listed in Table 1 below.

[Formaldehyde removal ability test]

The invention does not limit the test method for the removal ability of formaldehyde, and can directly send samples to a third-party impartial unit for testing (for example, ultra-micro industrial safety laboratory, SGS), or can design a test method by itself, to detect a tube or a semiconductor with a formaldehyde gas. Detector measurement. The formaldehyde removal ability test of the aqueous aldehyde removal spray containing the aqueous aldehyde removal composition according to Examples 1 to 3 of the present invention is specifically described below.

Third-party fair unit test: Example 1

The aqueous aldehyde spray according to Example 1 of the present invention was sent to the "Ultra Micro Industrial Safety Laboratory" for testing. The test report number is UG/2013/80187. The detailed test method is as follows. First, 10 ppm of formaldehyde gas is prepared into a 1 m ³ chamber for a total of 5 minutes. Next, about 10 mL of the aqueous aldehyde-removing agent containing the aqueous aldehyde-removing composition of Example 1 was sprayed into the cavity, and then the tube was inspected at 0, 15, 30, 60, and 120 minutes. The formaldehyde concentration was used as the experimental group for this test. Further, the concentration of formaldehyde in the cavity at the 0th, 15th, 30th, 60th, and 120th minutes of the above aqueous aldehyde-free spray was not measured and used as a control group. The above test results are shown in Fig. 1. Fig. 1 is a graph showing the relationship between the formaldehyde concentration and the time of formaldehyde removal ability of an aqueous aldehyde removal spray containing an aqueous aldehyde removal composition according to Example 1 of the present invention. The horizontal axis represents the sampling time (minutes) and the vertical axis represents the gaseous formaldehyde concentration (ppm). Diamond dots indicate the results of the experimental group, and round dots indicate the results of the control group. As can be seen from Fig. 1, the aqueous aldehyde spray (experimental group) according to the first embodiment of the present invention can remove formaldehyde gas by about 62.8% and formaldehyde concentration in 120 minutes after the generation of formaldehyde gas of up to 10 ppm. It can also continue to decrease over time. Conversely, the gaseous formaldehyde concentration of the control group was hardly reduced in 60 minutes, and even at 120 minutes, the formaldehyde gas was only removed by about 4%.

Laboratory self-test: Examples 1 to 3

First, prepare a test chamber with a volume of 125 liters (L), and the box is made of acrylic material. Next, the two sheets of absorbent paper substrate were cut into a size of 40 cm × 20 cm, which were respectively spread on a 2 mm thick glass plate as a substrate carrying the aqueous aldehyde-removing composition to simulate the actual application of the aqueous spray. When the aldehyde composition is ejected, it is adsorbed by furniture such as curtains and sofas. Next, 8 g of the aqueous aldehyde-removing compositions of Examples 1 to 3 of the formulations shown in Table 1 were taken, and water was added to 100 g to prepare an aqueous aqueous solution of the aldehyde-removing composition. The aqueous aldehyde-removing composition was uniformly dropped onto two sheets of absorbent paper substrate, i.e., the single-sheet absorbent paper substrate contained 4 g of an aqueous aldehyde-removing composition. After drying in an oven at 150 ° C for 30 minutes, it was placed in a test box as a sample for testing.

Next, the formaldehyde gas was introduced into the test chamber, and the change in the concentration of formaldehyde was measured. The preparation of formaldehyde gas can be prepared in another tank beforehand, and then introduced into the test box via a pump; or, in the test box, 500 μl of 0.5% formaldehyde aqueous solution can be dropped first, and the test chamber is sealed. Thereafter, the mixture was heated for about 5 to 7 minutes, and after the formaldehyde aqueous solution was completely volatilized, the concentration of formaldehyde in the cavity was measured at 0, 30, 60, and 120 minutes, respectively. The formaldehyde concentration test can be measured using a formaldehyde gas detection tube or a semiconductor formaldehyde gas detector. The concentration of formaldehyde measured by different measuring tools will be slightly different. Therefore, the consistency of the measuring tools should be maintained throughout the measurement. This test Measurements were made using a Formaldemeter htV formaldehyde detector (produced from PPM Technology). The results of the formaldehyde removal ability test of the aqueous aldehyde removing compositions of Examples 1 to 3 are shown in Table 2 below and FIG.

2 is an aqueous dispersion including Embodiments 1 to 3 according to the present invention. Schematic diagram of the relationship between the formaldehyde concentration and the time of the formaldehyde removal ability of the aldehyde composition of the aldehyde composition. The horizontal axis represents the sampling time (minutes) and the vertical axis represents the gaseous formaldehyde concentration (ppm). The diamond dots indicate the results of the aqueous aldehyde spray of Example 1, the square dots indicate the results of the aqueous aldehyde spray of Example 2, and the triangular dots indicate the results of the aqueous aldehyde spray of Example 3. Referring to FIG. 2 and the above Table 2, the results show that the aqueous aldehyde removal agent of the aqueous aldehyde removal composition according to the first embodiment to the third embodiment of the present invention can be respectively produced within 120 minutes after the generation of formaldehyde gas. Formaldehyde gas removal is about 76.0%, 88.2%, and 87.1%, and the formaldehyde concentration can continue to decrease over time.

As can be seen from Table 1 above, by adjusting different ratios of amino acids or their derivatives, The pH of the aqueous aldehyde-removing composition of the present invention can be adjusted to be in the range of 4 to 7. In addition, as can be seen from the results shown in Figures 1 and 2, the prepared aqueous aldehyde-removing composition is tested by a third-party impartial unit test (see Figure 1) or in the laboratory (see Figure 2). The formaldehyde in the air can be removed quickly and efficiently in a short time. In particular, in the laboratory self-test method, the sample is tested after removing moisture from the oven, and the result still has a strong aldehyde removal efficiency. This result shows that when the aqueous aldehyde-removing composition is actually used and sprayed in the air, even if it adheres to the surface of the object or its water evaporates, the remaining solid component of the aqueous aldehyde-removing composition can still be contained therein. The adsorption characteristics of the low molecular weight water-soluble chitin and the migration characteristics of the small molecule amino acid or its derivative continuously absorb formaldehyde on the surface of the solid residue of the aqueous aldehyde-removing composition without immediately failing.

In summary, the aqueous aldehyde-removing composition of the present invention utilizes water as a solvent, at least one water-soluble film-forming agent, water-soluble low molecular weight chitin, at least one natural amino acid or derivative thereof, and at least one antibacterial agent. And the water is evenly mixed. First, since the aqueous aldehyde-removing composition of the present invention is an aqueous mixed liquid completely free of volatile organic compounds, and the food-grade or pharmaceutical-grade raw material is used, the sprayed aqueous aldehyde-removing composition is in the air. Or the residue on the surface of the object will not cause harm to the human body and will not pollute the environment. In addition, since the aqueous aldehyde-removing composition of the present invention is used by using a polymer film-forming agent and a low-molecular-weight chitin together with a low-molecular amino acid or a derivative thereof, the aqueous aldehyde-removing composition of the present invention can simultaneously improve the adsorption of formaldehyde. It has the ability to remove formaldehyde and is more effective than other aldehyde-removing compositions on the market. The aqueous aldehyde removal composition of the present invention also simplifies the process and improves the pungent odor of acetic acid in conventional aldehyde removal compositions as compared to conventional techniques. Further, since the aqueous aldehyde removing composition of the present invention is weakly acidic to neutral and does not cause iron rust, it is suitable for long-term use on the surface of the iron.

Although the present invention has been disclosed above by way of example, it is not intended to limit the present invention. The scope of the present invention is defined by the scope of the appended claims, which are defined by the scope of the appended claims, without departing from the spirit and scope of the invention. quasi.

Claims (13)

An aqueous aldehyde-removing composition comprising: at least one water-soluble film-forming agent selected from the group consisting of pharmaceutical grade polyvinylpyrrolidone (PVP), pharmaceutical grade polyvinyl alcohol (PVA), pharmaceutical grade polyvinyl alcohol-polyethylene glycol ( a group consisting of PVA-PEG) copolymers or combinations thereof; water-soluble chitin; at least one natural amino acid or derivative thereof; at least one antibacterial agent, and water, wherein the content of the aqueous aldehyde-removing composition is The content of the water-soluble film-forming agent is from 0.1% by weight to 10% by weight, the content of the water-soluble chitin is from 0.1% by weight to 0.5% by weight, based on 100% by weight, the natural amino acid or its derivative The total content of the substance is from 0.1% by weight to 10% by weight, the content of the antibacterial agent is from 0.1% by weight to 1.0% by weight, and the content of the water is from 85% by weight to 95% by weight, wherein the aqueous aldehyde removal composition The pH of the material is in the range of 4 to 7. The aqueous aldehyde removal composition according to claim 1, wherein the pharmaceutical grade polyvinylpyrrolidone is selected from the group consisting of an average degree of polymerization of K-12, K-15, K-17, K-25, K-30. a group consisting of K-60, K-90, and K-120 polyvinylpyrrolidone. The aqueous aldehyde removal composition according to claim 1, wherein the water-soluble chitin is a low molecular weight chitin, and the water-soluble chitin 1% by weight aqueous solution has a viscosity of less than 10 cps. The aqueous aldehyde-removing composition according to claim 1, wherein the natural amino acid or a derivative thereof is selected from the group consisting of glycine, arginine, and lysine. a group consisting of or a derivative thereof. The aqueous item as defined in claim 1 except range aldehyde composition, wherein the antimicrobial agent is selected from the group consisting of Citricidal ^TM, the group consisting of Progarda ^TM, Protectene ^TM, BioCitro ^TM or Citrox ^TM. An aqueous aldehyde-removing composition comprising: pharmaceutical grade polyvinylpyrrolidone (PVP); low molecular weight water-soluble chitin having a viscosity of less than 10 cps in a 1% by weight aqueous solution; at least one natural amino acid or a derivative thereof, which is selected a group consisting of free glycine, arginine or lysine or a derivative thereof; at least one antibacterial agent, and water, wherein the content of the aqueous aldehyde-removing composition is The content of the pharmaceutical grade polyvinylpyrrolidone (PVP) is 0.1% by weight to 10% by weight, and the content of the low molecular weight water-soluble chitin is 0.1% by weight to 0.5% by weight, based on 100% by weight of the natural amine The total content of the acid or derivative thereof is from 0.1% by weight to 10% by weight, and the content of the antibacterial agent is from 0.1% by weight to 1.0% by weight, wherein the aqueous aldehyde-removing composition has a pH of from 4 to 7 In the range. An aqueous aldehyde removal composition as described in claim 6 wherein said The pharmaceutical grade polyvinylpyrrolidone is selected from the group consisting of polyvinylpyrrolidone having an average degree of polymerization of K-12, K-15, K-17, K-25, K-30, K-60, K-90, K-120. Group. The aqueous aldehyde removal composition according to claim 6, wherein the pharmaceutical grade polyvinylpyrrolidone has an average degree of polymerization of K-30. The aqueous aldehyde-removing composition according to claim 6, wherein the content of the pharmaceutical grade polyvinylpyrrolidone is from 1% by weight to 5% by weight based on 100% by weight of the aqueous aldehyde-removing composition. . The aqueous aldehyde-removing composition according to claim 6, wherein the content of the low molecular weight water-soluble chitin is from 0.4% by weight to 0.5% by weight based on 100% by weight of the aqueous aldehyde-containing composition. %. The aqueous aldehyde-removing composition according to claim 6, wherein the total content of the natural amino acid or a derivative thereof is 0.2% by weight based on 100% by weight of the aqueous aldehyde-removing composition. Up to 4% by weight. The aqueous aldehyde-removing composition according to claim 6, wherein the natural amino acid or a derivative thereof is selected from the group consisting of 0.2% by weight to 0.5% by weight of glycine, and 0% by weight to 3% by weight. A group consisting of lysine and 0% to 0.3% by weight of arginine. The aqueous item as defined in claim 6, in addition to the scope of the aldehyde composition, wherein the antimicrobial agent is selected from the group consisting of Citricidal ^TM, the group consisting of Progorda ^TM, Protectene ^TM, BioCitro ^TM or Citrox ^TM.