CN111841313A - Formaldehyde purifying agent and use method thereof - Google Patents
Formaldehyde purifying agent and use method thereof Download PDFInfo
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- CN111841313A CN111841313A CN202010785059.1A CN202010785059A CN111841313A CN 111841313 A CN111841313 A CN 111841313A CN 202010785059 A CN202010785059 A CN 202010785059A CN 111841313 A CN111841313 A CN 111841313A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/20707—Titanium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/80—Type of catalytic reaction
- B01D2255/802—Photocatalytic
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Abstract
The invention belongs to the field of textiles, and particularly relates to a formaldehyde purifying agent and a use method thereof, wherein the purifying agent comprises a formaldehyde remover and a formaldehyde photocatalytic decomposer, the formaldehyde remover comprises powder and a medicament, the mass ratio of the powder to the medicament is 3-10, specific components and a formula are provided, and a use mode of the formaldehyde remover is further provided. The invention solves the problem of poor formaldehyde removal effect in the prior art, polyvinyl acetate is used as a remover, and forms a polycondensation reaction with formaldehyde after alcoholysis, so that the formaldehyde is rapidly removed, a good removal effect is achieved, and meanwhile, a photocatalytic decomposer is added to realize the function of continuously decomposing formaldehyde, so that the formaldehyde-free air purifier has the function of purifying air.
Description
Technical Field
The invention belongs to the field of textiles, and particularly relates to a formaldehyde purifying agent for textile fabric treatment and a use method thereof.
Background
Formaldehyde is a colorless, pungent odor gas that is readily soluble in water, alcohols, and ethers. Formaldehyde has a wide range of uses in industry. It is commonly used in textiles, dyes, leather, resins, paints, plastics, rubber, pharmaceuticals, explosives, and the like. The formaldehyde pollution thus originates mainly from the above products. The harm of formaldehyde to human body is mainly shown in the following aspects: formaldehyde can bind to proteins in the plasma of somatic cells, altering the internal structure of the protein and clotting, thereby rendering it biocidal. The mucous membrane of the eye is stimulated initially at low concentration, the upper respiratory tract is stimulated at high concentration, cough and chest distress are caused, meanwhile, the neck has oppression feeling, the mucous membrane is ulcerated, and further inflammation is caused in the lung. After formaldehyde is inhaled, anorexia, weight loss, asthenia and insomnia can be caused; this can lead to hypersensitivity if contacted frequently and can result in ulceration of the skin tissue. Formaldehyde has an anesthetic effect on the central nervous system, and particularly has a strong poisoning effect on eyesight. In addition, formaldehyde can damage intracellular genetic material and is a suspected carcinogen. The long-term exposure to formaldehyde gas can cause headache, weakness, irregular perspiration, temperature change, accelerated pulse, rash, eczema, red swelling and the like. The World Health Organization (WHO) and the united states environmental protection agency have thus listed formaldehyde as a suspected carcinogen and an important environmental pollutant. Due to the toxicity of formaldehyde, the food is forbidden to add formaldehyde in food according to the clear regulations in the food sanitation law of China. The restriction of formaldehyde is regulated in the textile industry and governments around the world, or an environmental label method of textiles is established. In recent years, as the living conditions of people are improved, the national promulgated 'hygienic standard for formaldehyde in the air of a room'.
At present, the formaldehyde source of the textile is mainly summarized by several ways, namely, the residual formaldehyde after the hydroformylation treatment or the whitening treatment is carried out on the textile fiber in the production process; some finishes in the special finishing of textiles release formaldehyde; some auxiliaries release formaldehyde during the printing and dyeing process of textiles. However, the formaldehyde scavenger in the market is not obvious in formaldehyde removal effect, and after the fabric is treated by the formaldehyde scavenger, residual formaldehyde is still released, so that the health of human bodies is harmed.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a formaldehyde remover, which solves the problem of poor formaldehyde removing effect in the prior art, polyvinyl acetate is used as the remover, and forms a polycondensation reaction with formaldehyde after alcoholysis, so that formaldehyde is quickly removed, a good curing removing effect is achieved, meanwhile, a photocatalytic decomposing agent is added to realize the function of continuously decomposing formaldehyde, and the formaldehyde remover has the function of purifying air.
In order to achieve the technical purpose, the technical scheme of the invention is as follows:
a formaldehyde purifying agent is prepared by compounding a formaldehyde remover and a formaldehyde photocatalytic decomposer.
The formaldehyde remover comprises powder and a medicament, wherein the mass ratio of the powder to the medicament is 3-10.
The powder comprises the following components in percentage by mass
20-40 parts of tea polyphenol, 10-20 parts of blueberry leaf polyphenol, 5-8 parts of sodium alginate, 3-6 parts of sodium citrate, 15-30 parts of polyvinyl acetate and 0.5-1 part of sodium dodecyl sulfate.
The mass formula of the medicament is as follows:
10-20 parts of acetic acid, 5-10 parts of ethanol and 3-5 parts of distilled water.
The application method of the formaldehyde remover comprises the following steps: adding the formaldehyde remover into distilled water, violently and uniformly stirring to obtain a soaking solution, and then soaking the fabric to be treated into the soaking solution for 20-30 min; the mass ratio of the formaldehyde remover to the distilled water is 2:5-15, and the stirring speed of the vigorous stirring is 2000-3000 r/min.
The formaldehyde remover is characterized in that powder is slowly added into the agent before use, and low-temperature rapid stirring is matched to prepare formaldehyde remover.
Further, the formaldehyde remover is used as follows: uniformly coating the formaldehyde removal solution on the surface of the fabric, then spraying distilled water on the surface until the fabric is completely wetted, standing for 1-3h, and finally washing and drying the fabric in the air; the coating amount of the formaldehyde removing liquid is 3-6mL/cm2The spraying amount of the distilled water is 10-30mL/cm2。
The formaldehyde photocatalytic decomposer is selected from nano titanium dioxide with anatase crystal form, and the particle size is less than 20 nm.
The mass formula is as follows: 10-20 parts of titanium dioxide, 40-60 parts of ethanol, 20-30 parts of distilled water and 1-5 parts of ethyl silicate.
The application method of the formaldehyde photocatalytic decomposer comprises the following steps: soaking the fabric treated by the formaldehyde remover in a formaldehyde photocatalytic decomposing agent for 10-20min, taking out and airing, and carrying out heat treatment at the temperature of 100-200 ℃ in an oven for 15-30min, wherein the coating amount of the formaldehyde photocatalytic decomposing agent is 5-15mL/cm2。
From the above description, it can be seen that the present invention has the following advantages:
1. the invention solves the problem of poor formaldehyde removal effect in the prior art, polyvinyl acetate is used as a remover, and forms a polycondensation reaction with formaldehyde after alcoholysis, so that the formaldehyde is rapidly removed, a good removal effect is achieved, and meanwhile, a photocatalytic decomposer is added to realize the function of continuously decomposing formaldehyde, so that the formaldehyde-free air purifier has the function of purifying air.
2. According to the invention, acetic acid in the agent is used as an acid catalyst, so that the whole acidity is improved, the removal of formaldehyde is promoted, the solubility of polyvinyl formal in acetic acid is utilized, the rapid removal is realized, and the performance of the fabric is not affected.
3. According to the invention, tea polyphenol and blueberry leaf polyphenol are used as auxiliary agents, so that the antibacterial effect and the bacteriostatic effect can be achieved, the tea polyphenol and blueberry leaf polyphenol have a good effect on removing formaldehyde, and the effect of removing formaldehyde in an environment-friendly manner is achieved.
4. The invention utilizes the titanium dioxide photocatalyst, can well remove the residual formaldehyde content in the chemical reagent reaction process, and endows the textile fabric with the functions of durably decomposing formaldehyde and purifying air and protecting environment.
Detailed Description
The present invention is described in detail with reference to examples, but the present invention is not limited to the claims.
Example 1
The formaldehyde remover comprises powder and medicaments:
the mass formula of the powder is as follows:
20g of tea polyphenol, 10g of blueberry leaf polyphenol, 5g of sodium alginate, 3g of sodium citrate, 15g of polyvinyl acetate and 0.5g of sodium dodecyl sulfate to obtain 53.5g of powder.
The mass formula of the medicament is as follows:
acetic acid 10g, ethanol 5g, distilled water 3g, 18g medicament.
15g of powder and 5g of medicament are uniformly mixed and are matched with low-temperature rapid stirring to prepare the formaldehyde removal liquid, the adding speed of the powder is 5g/min, the temperature is 5 ℃, and the stirring speed is 1000 r/min.
The application method of the formaldehyde remover comprises the following steps: adding the formaldehyde remover into distilled water, violently and uniformly stirring to obtain a soaking solution, and then soaking the fabric to be treated into the soaking solution for 20 min; 20g of formaldehyde remover and 50g of distilled water are taken, the stirring speed of vigorous stirring is 2000r/min, and the stirring temperature is 5 ℃.
The formaldehyde photocatalytic decomposer is selected from nano titanium dioxide with anatase crystal form and particle size of 5 nm.
The mass formula is as follows: 10g of titanium dioxide, 40g of ethanol, 20g of distilled water and 1g of ethyl silicate, and 70mL of a solution with a mass of 71g was obtained.
The application method of the formaldehyde photocatalytic decomposer comprises the following steps: soaking the fabric treated by the formaldehyde remover in a formaldehyde photocatalytic decomposing agent for 10min, taking out and airing, and carrying out heat treatment at the temperature of 100 ℃ in an oven for 15min, wherein the coating amount of the formaldehyde photocatalytic decomposing agent is 5mL/cm2。
This example deals with a fabric having a formaldehyde content of 500mg/kg, which is 18 mg/kg.
Example 2
The formaldehyde remover comprises powder and medicaments:
the mass formula of the powder is as follows:
40g of tea polyphenol, 20g of blueberry leaf polyphenol, 8g of sodium alginate, 6g of sodium citrate, 30g of polyvinyl acetate and 1g of sodium dodecyl sulfate to obtain 105g of powder.
The mass formula of the medicament is as follows:
acetic acid 10g, ethanol 5g, distilled water 3g, 18g medicament.
100g of powder and 10g of medicament are uniformly mixed and are matched with low-temperature rapid stirring to prepare formaldehyde removal liquid, the adding speed of the powder is 10g/min, the temperature is 10 ℃, and the stirring speed is 2000 r/min.
The application method of the formaldehyde remover comprises the following steps: adding the formaldehyde remover into distilled water, violently and uniformly stirring to obtain a soaking solution, and then soaking the fabric to be treated into the soaking solution for 30 min; 10g of formaldehyde remover and 75g of distilled water are taken, the stirring speed of vigorous stirring is 3000r/min, and the stirring temperature is 20 ℃.
The formaldehyde photocatalytic decomposer is selected from nano titanium dioxide with anatase crystal form and particle size of 15 nm.
The mass formula is as follows: titanium dioxide (20 g), ethanol (60 g), distilled water (30 g), and ethyl silicate (5 g) to give 105mL of a solution having a mass of 115 g.
The application method of the formaldehyde photocatalytic decomposer comprises the following steps: soaking the fabric treated by the formaldehyde remover in a formaldehyde photocatalytic decomposing agent for 20min, taking out and airing, and carrying out heat treatment at the temperature of 200 ℃ in an oven for 30min, wherein the coating amount of the formaldehyde photocatalytic decomposing agent is 15mL/cm2。
This example deals with a fabric having a formaldehyde content of 500mg/kg, and the formaldehyde content of the treated fabric is 5 mg/kg.
Example 3
The formaldehyde remover comprises powder and medicaments:
the mass formula of the powder is as follows:
30 parts of tea polyphenol, 15g of blueberry leaf polyphenol, 7g of sodium alginate, 5g of sodium citrate, 25g of polyvinyl acetate and 0.8g of sodium dodecyl sulfate to obtain 82.8g of powder.
The mass formula of the medicament is as follows:
acetic acid 10g, ethanol 5g, distilled water 3g, 18g medicament.
70g of powder and 10g of medicament are uniformly mixed and are matched with low-temperature rapid stirring to prepare formaldehyde removal liquid, the adding speed of the powder is 8g/min, the temperature is 8 ℃, and the stirring speed is 2500 r/min.
The application method of the formaldehyde remover comprises the following steps: adding the formaldehyde remover into distilled water, violently and uniformly stirring to obtain a soaking solution, and then soaking the fabric to be treated into the soaking solution for 25 min; 10g of formaldehyde remover and 50g of distilled water are taken, the stirring speed of vigorous stirring is 2500r/min, and the stirring temperature is 20 ℃.
The formaldehyde photocatalytic decomposer is selected from nano titanium dioxide, anatase crystal form and particle size of 10 nm.
The mass formula is as follows: 15g of titanium dioxide, 50g of ethanol, 25g of distilled water and 3g of ethyl silicate, 85mL of a solution with a mass of 115g was obtained.
The application method of the formaldehyde photocatalytic decomposer comprises the following steps: soaking the fabric treated by the formaldehyde remover in a formaldehyde photocatalytic decomposing agent for 15min, taking out and airing, and carrying out heat treatment at the temperature of 150 ℃ in an oven for 20min, wherein the coating amount of the formaldehyde photocatalytic decomposing agent is 10mL/cm2。
This example deals with a fabric having a formaldehyde content of 500mg/kg, which is 7 mg/kg.
Example 4
The formaldehyde remover comprises powder and medicaments:
the mass formula of the powder is as follows:
20g of tea polyphenol, 10g of blueberry leaf polyphenol, 5g of sodium alginate, 3g of sodium citrate, 15g of polyvinyl acetate and 0.5g of sodium dodecyl sulfate to obtain 53.5g of powder.
The mass formula of the medicament is as follows:
acetic acid 10g, ethanol 5g, distilled water 3g, 18g medicament.
15g of powder and 5g of medicament are uniformly mixed and are matched with low-temperature rapid stirring to prepare the formaldehyde removal liquid, the adding speed of the powder is 5g/min, the temperature is 5 ℃, and the stirring speed is 1000 r/min.
The application method of the formaldehyde remover comprises the following steps: uniformly coating the formaldehyde removal liquid on the surface of the fabric, then spraying distilled water on the surface until the fabric is completely wetted, standing for 1h, and finally washing the fabric with slurryAiring; the coating amount of the formaldehyde removing solution is 3mL/cm2The spraying amount of the distilled water is 10mL/cm2. The mode of coating in proper order can ensure that formaldehyde remover preferentially gets into in the surface fabric, and the front end concentration that permeates is greater than average concentration promptly, and the treatment effect is more excellent.
The formaldehyde photocatalytic decomposer is selected from nano titanium dioxide with anatase crystal form and particle size of 5 nm.
The mass formula is as follows: 10g of titanium dioxide, 40g of ethanol, 20g of distilled water and 1g of ethyl silicate, and 70mL of a solution with a mass of 71g was obtained.
The application method of the formaldehyde photocatalytic decomposer comprises the following steps: soaking the fabric treated by the formaldehyde remover in a formaldehyde photocatalytic decomposing agent for 10min, taking out and airing, and carrying out heat treatment at the temperature of 100 ℃ in an oven for 15min, wherein the coating amount of the formaldehyde photocatalytic decomposing agent is 5mL/cm2。
This example deals with a fabric having a formaldehyde content of 500mg/kg, which is 15 mg/kg.
Example 5
The formaldehyde remover comprises powder and medicaments:
the mass formula of the powder is as follows:
40g of tea polyphenol, 20g of blueberry leaf polyphenol, 8g of sodium alginate, 6g of sodium citrate, 30g of polyvinyl acetate and 1g of sodium dodecyl sulfate to obtain 105g of powder.
The mass formula of the medicament is as follows:
acetic acid 10g, ethanol 5g, distilled water 3g, 18g medicament.
100g of powder and 10g of medicament are uniformly mixed and are matched with low-temperature rapid stirring to prepare formaldehyde removal liquid, the adding speed of the powder is 10g/min, the temperature is 10 ℃, and the stirring speed is 2000 r/min.
The application method of the formaldehyde remover comprises the following steps: uniformly coating the formaldehyde removal solution on the surface of the fabric, then spraying distilled water on the surface until the fabric is completely wetted, standing for 3 hours, and finally washing and drying the fabric in the air; the coating amount of the formaldehyde removing solution is 6mL/cm2The distilled waterThe spraying amount is 30mL/cm2。
The formaldehyde photocatalytic decomposer is selected from nano titanium dioxide with anatase crystal form and particle size of 15 nm.
The mass formula is as follows: titanium dioxide (20 g), ethanol (60 g), distilled water (30 g), and ethyl silicate (5 g) to give 105mL of a solution having a mass of 115 g.
The application method of the formaldehyde photocatalytic decomposer comprises the following steps: soaking the fabric treated by the formaldehyde remover in a formaldehyde photocatalytic decomposing agent for 20min, taking out and airing, and carrying out heat treatment at the temperature of 200 ℃ in an oven for 30min, wherein the coating amount of the formaldehyde photocatalytic decomposing agent is 15mL/cm2。
This example deals with a fabric having a formaldehyde content of 500mg/kg, and the formaldehyde content of the treated fabric is 4 mg/kg.
Example 6
The formaldehyde remover comprises powder and medicaments:
the mass formula of the powder is as follows:
30 parts of tea polyphenol, 15g of blueberry leaf polyphenol, 7g of sodium alginate, 5g of sodium citrate, 25g of polyvinyl acetate and 0.8g of sodium dodecyl sulfate to obtain 82.8g of powder.
The mass formula of the medicament is as follows:
acetic acid 10g, ethanol 5g, distilled water 3g, 18g medicament.
70g of powder and 10g of medicament are uniformly mixed and are matched with low-temperature rapid stirring to prepare formaldehyde removal liquid, the adding speed of the powder is 8g/min, the temperature is 8 ℃, and the stirring speed is 2500 r/min.
The application method of the formaldehyde remover comprises the following steps: uniformly coating the formaldehyde removal solution on the surface of the fabric, then spraying distilled water on the surface until the fabric is completely wetted, standing for 2 hours, and finally washing and drying the fabric in the air; the coating amount of the formaldehyde removing solution is 5mL/cm2The spraying amount of the distilled water is 20mL/cm2。
The formaldehyde photocatalytic decomposer is selected from nano titanium dioxide with anatase crystal form and particle size of 7 nm.
The mass formula is as follows: 15g of titanium dioxide, 50g of ethanol, 25g of distilled water and 3g of ethyl silicate, 85mL of a solution with a mass of 115g was obtained.
The application method of the formaldehyde photocatalytic decomposer comprises the following steps: soaking the fabric treated by the formaldehyde remover in a formaldehyde photocatalytic decomposing agent for 15min, taking out and airing, and carrying out heat treatment at the temperature of 150 ℃ in an oven for 20min, wherein the coating amount of the formaldehyde photocatalytic decomposing agent is 10mL/cm2。
This example deals with a fabric having a formaldehyde content of 500mg/kg, and the formaldehyde content of the treated fabric is 5 mg/kg.
In summary, the invention has the following advantages:
1. the invention solves the problem of poor formaldehyde removal effect in the prior art, polyvinyl acetate is used as a remover, and forms a polycondensation reaction with formaldehyde after alcoholysis, so that the formaldehyde is rapidly removed, a good removal effect is achieved, and meanwhile, a photocatalytic decomposer is added to realize the function of continuously decomposing formaldehyde, so that the formaldehyde-free air purifier has the function of purifying air.
2. According to the invention, acetic acid in the agent is used as an acid catalyst, so that the whole acidity is improved, the removal of formaldehyde is promoted, the solubility of polyvinyl formal in acetic acid is utilized, the rapid removal is realized, and the performance of the fabric is not affected.
3. According to the invention, tea polyphenol and blueberry leaf polyphenol are used as auxiliary agents, so that the antibacterial effect and the bacteriostatic effect can be achieved, the tea polyphenol and blueberry leaf polyphenol have a good effect on removing formaldehyde, and the effect of removing formaldehyde in an environment-friendly manner is achieved.
4. The invention utilizes the titanium dioxide photocatalyst, can well remove the residual formaldehyde content in the chemical reagent reaction process, and endows the textile fabric with the functions of durably decomposing formaldehyde and purifying air and protecting environment.
It should be understood that the detailed description of the invention is merely illustrative of the invention and is not intended to limit the invention to the specific embodiments described. It will be appreciated by those skilled in the art that the present invention may be modified or substituted equally as well to achieve the same technical result; as long as the use requirements are met, the method is within the protection scope of the invention.
Claims (10)
1. A formaldehyde purifying agent is characterized by comprising a formaldehyde remover and a formaldehyde photocatalytic decomposer.
2. The formaldehyde scavenger according to claim 1, wherein the formaldehyde scavenger comprises a powder and a chemical, and the mass ratio of the powder to the chemical is 3-10.
3. The formaldehyde scavenger as recited in claim 2, wherein said powder is prepared by the mass formulation comprising
20-40 parts of tea polyphenol, 10-20 parts of blueberry leaf polyphenol, 5-8 parts of sodium alginate, 3-6 parts of sodium citrate, 15-30 parts of polyvinyl acetate and 0.5-1 part of sodium dodecyl sulfate.
4. The formaldehyde scavenger as recited in claim 2, wherein the mass formula of said agent is as follows:
10-20 parts of acetic acid, 5-10 parts of ethanol and 3-5 parts of distilled water.
5. The formaldehyde scavenger according to claim 2, wherein the formaldehyde scavenger is used in the following manner: adding the formaldehyde remover into distilled water, violently and uniformly stirring to obtain a soaking solution, and then soaking the fabric to be treated into the soaking solution for 20-30 min; the mass ratio of the formaldehyde remover to the distilled water is 2:5-15, and the stirring speed of the vigorous stirring is 2000-3000 r/min.
6. The formaldehyde scavenger according to claim 2, wherein the formaldehyde scavenger is prepared by slowly adding the powder into the agent before use, and rapidly stirring at low temperature.
7. The formaldehyde scavenger according to claim 2, wherein the formaldehyde scavenger is used in the following manner: uniformly coating the formaldehyde removing liquid on the surface of the substrateSpraying distilled water on the surface of the fabric until the fabric is completely wetted, standing for 1-3h, and finally washing and drying the fabric; the coating amount of the formaldehyde removing liquid is 3-6mL/cm2The spraying amount of the distilled water is 10-30mL/cm2。
8. The formaldehyde scavenger as recited in claim 1, wherein the formaldehyde photocatalytic decomposition agent is selected from the group consisting of nano titanium dioxide, anatase type crystal, and particle size less than 20 nm.
9. The formaldehyde scavenger as recited in claim 8, wherein the mass formula of said formaldehyde photocatalytic decomposition agent is as follows: 10-20 parts of titanium dioxide, 40-60 parts of ethanol, 20-30 parts of distilled water and 1-5 parts of ethyl silicate.
10. The formaldehyde scavenger according to claim 8, wherein the formaldehyde photocatalytic decomposition agent is used in the following manner: soaking the fabric treated by the formaldehyde remover in a formaldehyde photocatalytic decomposing agent for 10-20min, taking out and airing, and carrying out heat treatment at the temperature of 100-200 ℃ in an oven for 15-30min, wherein the coating amount of the formaldehyde photocatalytic decomposing agent is 5-15mL/cm2。
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010785059.1A CN111841313A (en) | 2020-08-06 | 2020-08-06 | Formaldehyde purifying agent and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010785059.1A CN111841313A (en) | 2020-08-06 | 2020-08-06 | Formaldehyde purifying agent and use method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115090111A (en) * | 2022-06-23 | 2022-09-23 | 烟台海誉新材料有限公司 | Preparation and application method of household formaldehyde remover |
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2020
- 2020-08-06 CN CN202010785059.1A patent/CN111841313A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115090111A (en) * | 2022-06-23 | 2022-09-23 | 烟台海誉新材料有限公司 | Preparation and application method of household formaldehyde remover |
| CN115090111B (en) * | 2022-06-23 | 2023-11-14 | 烟台海誉新材料有限公司 | Preparation and application methods of formaldehyde remover for home use |
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