CN110964604A - Anti-color-cross washing agent for clothes - Google Patents
Anti-color-cross washing agent for clothes Download PDFInfo
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- CN110964604A CN110964604A CN201911204023.3A CN201911204023A CN110964604A CN 110964604 A CN110964604 A CN 110964604A CN 201911204023 A CN201911204023 A CN 201911204023A CN 110964604 A CN110964604 A CN 110964604A
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/83—Mixtures of non-ionic with anionic compounds
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
- C07C303/32—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of salts of sulfonic acids
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/06—Phosphates, including polyphosphates
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2003—Alcohols; Phenols
- C11D3/2065—Polyhydric alcohols
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2075—Carboxylic acids-salts thereof
- C11D3/2086—Hydroxy carboxylic acids-salts thereof
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/34—Organic compounds containing sulfur
- C11D3/3418—Toluene -, xylene -, cumene -, benzene - or naphthalene sulfonates or sulfates
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/37—Polymers
- C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/3757—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions
- C11D3/3765—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions in liquid compositions
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/37—Polymers
- C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/3769—(Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines
- C11D3/3776—Heterocyclic compounds, e.g. lactam
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/38—Products with no well-defined composition, e.g. natural products
- C11D3/382—Vegetable products, e.g. soya meal, wood flour, sawdust
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/50—Perfumes
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/22—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aromatic compounds
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/662—Carbohydrates or derivatives
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/72—Ethers of polyoxyalkylene glycols
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Abstract
The invention discloses a washing agent for preventing color cross of clothes, and belongs to the field of multifunctional detergents. The agent comprises the following components in parts by weight: sodium dodecyl benzene sulfonate, fatty alcohol-polyoxyethylene ether, alkyl glucoside, polyvinylpyrrolidone, an anti-staining agent, sodium tripolyphosphate, sodium polyacrylate, glycerol, aloe oil, essence, citric acid and deionized water. The soluble macromolecular dye-resistant agent is synthesized and preferentially adsorbed on the fiber, and due to the repulsive force between the sulfonic groups on the macromolecules of the dye-resistant agent and the dye anions close to the surface of the fiber, the dye-uptake is influenced, the dye is prevented from diffusing into the fiber, and meanwhile, the dye-resistant agent occupies partial dye seats of the dye, and the adsorption quantity of the dye separated from the fiber is reduced. The polyvinyl pyrrolidone is used as a color removing agent to adsorb, gather and remove free dye molecules so as to achieve the purpose of preventing the color of the fabric from being mixed.
Description
Technical Field
The invention belongs to the field of functional detergents, and particularly relates to a laundry anti-cross-color detergent.
Background
When the clothes are washed, dyes or other color scales can be re-dyed on the clothes from an aqueous solution, so that the outlines of patterns on the clothes are unclear, the stereoscopic impression is not strong, and the white clothes have blue background and dark gray appearance, which is called cross color.
The main reasons for this are ① unfit fixation of dye and formation of loose color due to no control of process conditions during printing and dyeing of fabric, ② strong emulsifying power and permeability of surfactant in detergent cause loss of acting force of dye molecules before fiber, ③ oxidation reaction of dye molecules or reduction of adsorption fastness of dye molecules to fabric due to sun or multiple washing in daily life.
Disclosure of Invention
The purpose of the invention is as follows: to solve the above problems involved in the background art, there is provided a laundry anti-cross-color detergent.
The technical scheme is as follows: the anti-cross color washing agent for clothes comprises the following components in parts by weight: 5-10 parts of sodium dodecyl benzene sulfonate, 2-6 parts of fatty alcohol-polyoxyethylene ether, 10-20 parts of alkyl glucoside, 2-5 parts of polyvinylpyrrolidone, 4-8 parts of anti-staining agent, 5-10 parts of sodium tripolyphosphate, 1-3 parts of sodium polyacrylate, 1-3 parts of glycerol, 1-3 parts of aloe oil, 0.2-1 part of essence, 0.2-1 part of citric acid and 40-74 parts of deionized water.
As a preferable scheme, the agent comprises the following components in parts by weight: 6-8 parts of sodium dodecyl benzene sulfonate, 2-4 parts of fatty alcohol-polyoxyethylene ether, 13-16 parts of alkyl glucoside, 2-3 parts of polyvinylpyrrolidone, 4-5 parts of anti-staining agent, 5-8 parts of sodium tripolyphosphate, 2-3 parts of sodium polyacrylate, 1-2 parts of glycerol, 1-2 parts of aloe oil, 0.2-0.5 part of essence, 0.2-0.5 part of citric acid and 56-69 parts of deionized water.
As a preferable scheme, the structural formula of the fatty alcohol-polyoxyethylene ether is as follows:
As a preferred embodiment, the alkyl glucoside has the following structural formula:
As a preferred embodiment, the structural formula of the polyvinylpyrrolidone is as follows:
As a preferred embodiment, the structural formula of the stain blocker is:
as a preferred embodiment, the preparation process of the stain blocker is as follows: adding a certain amount of dimethylbenzene into a reaction kettle at the temperature of 80-100 ℃, adding pyromellitic dianhydride and 3, 6-hydroxy-2, 7-naphthalene sulfonic acid into the reaction kettle according to the molar ratio of 1:4, and stirring until the mixture is uniformly mixed; and then reacting for 2-3 hours at a constant temperature of 100-110 ℃ to obtain a water-soluble light brown crystalline solid.
As a preferred embodiment, the anti-staining agent is prepared according to the reaction formula:
as a preferred scheme, the compounding process of the detergent comprises the following steps: weighing deionized water according to a ratio, evenly dividing the deionized water into two parts, weighing sodium dodecyl benzene sulfonate, alkyl glucoside, polyvinylpyrrolidone, fatty alcohol-polyoxyethylene ether and anti-staining agent according to the ratio, uniformly mixing, stirring at a high speed of about 1000rad/min, and slowly adding one part of deionized water into the mixture in batches to obtain a solution A; weighing sodium tripolyphosphate, sodium polyacrylate, glycerol, aloe oil and essence according to the proportion and dosage, dissolving in the other part of deionized water to obtain solution B, slowly adding the solution B into the solution A, cooling to room temperature, adding citric acid, and adjusting pH to neutral or weakly acidic to obtain the target product.
Has the advantages that: the invention relates to a clothes anti-cross color detergent, which is characterized in that a soluble macromolecular anti-staining agent is synthesized, has a molecular weight higher than that of a common direct dye and is preferentially adsorbed on fibers, and because repulsive force exists between sulfonic groups on macromolecules of the anti-staining agent and dye anions close to the surfaces of the fibers, dye uptake is influenced, dye is prevented from diffusing into the fibers, and meanwhile, partial dye seats of the dye are occupied, and the adsorption quantity of the dye separated from the fibers is reduced. The polyvinyl pyrrolidone is used as a color removing agent to adsorb, gather and remove free dye molecules so as to achieve the purpose of preventing the color of the fabric from being mixed.
Detailed Description
The color cross-dyeing phenomenon of the fabric can be divided into two cases, namely, when the ① fabric and the light-color fabric are washed simultaneously, the color is transferred from the dark-color fabric to the light-color fabric, the color of the dye with different colors on the single fabric ② is transferred from the fabric to the solution to the fabric under the action of a surfactant, and the cross-dyeing phenomenon when the direct dye is used for dyeing the clothes by the direct dye is the most serious because the direct dye is more connected with the fiber by Van der Waals force and hydrogen bond action.
The main reasons for this reason include that ① fabric is not well controlled in the printing and dyeing process, resulting in unfirm dye fixation and formation of loose color, ② detergent in which strong emulsifying power and permeability of surfactant cause loss of acting force of dye molecules before fiber, ③ daily life, sun or multiple washing, resulting in oxidation reaction of dye molecules or weakening of absorption fastness of dye molecules to fabric, currently, detergent industry mostly adopts color fixative and surfactant to enhance color protection function of detergent, the color fixative has two types, namely nonionic and cationic, wherein nonionic color fixative mainly forms a film on fabric surface, reducing loss of dye molecules on colored fabric and staining amount of white fabric, which has good effect on clothes color fixation and color cross-resistance, but later cleaning process needs to consume large amount of clear water to remove residual color fixative, cationic color fixative is complexed with anionic dye, so that adsorption fastness of dye molecules on fabric is increased, complexing solution of dye molecules in complexing agent only increases the ability of dye molecules in detergent, and thus increasing the washing ability of detergent surface for single type of detergent.
The invention relates to a clothes anti-cross color detergent, wherein the main synthesis process of a dye-resistant agent is as follows: adding a certain amount of dimethylbenzene into a reaction kettle at the temperature of 80-100 ℃, adding pyromellitic dianhydride and 3, 6-hydroxy-2, 7-naphthalene sulfonic acid into the reaction kettle according to the molar ratio of 1:4, and adding a small amount of acid catalyst to stir until the components are uniformly mixed; and then reacting at constant temperature of 100-110 ℃ for 2-3 hours to obtain a water-soluble light brown crystalline solid serving as a dye-resistant agent. Wherein, the acid catalyst is inorganic acid such as hydrochloric acid, sulfuric acid and the like, and can also be organic acid such as oxalic acid, citric acid and the like. The structural formula of the synthesized soluble macromolecular dye-resistant agent is as follows:
the molecular weight of the dye is larger than that of the general direct dye, the dye can be preferentially adsorbed on the fiber, and due to the repulsive force between the sulfonic group on the macromolecules of the dye-resistant agent and the dye anions close to the surface of the fiber, the dye is affected, the dye is prevented from diffusing to the inside of the fiber, and meanwhile, the dye occupies part of dye seats of the dye, and the adsorption quantity of the dye separated is reduced. The molecules contain a large amount of sulfonic acid groups and hydroxyl groups, so the dye-resist agent is soluble in water and does not need a large amount of clean water for cleaning. For those skilled in the art, since the components of the above-mentioned dye-proofing agent are not unique, and there are many ways to combine them, and also contain partially polymerized polymers, the present invention does not separately describe the various possible combination ways, but it is to be noted that the reaction temperature and the reaction time length need to be strictly controlled in order to ensure the water solubility of the dye-proofing agent molecule. Finally, polyvinylpyrrolidone is used as a color removing agent to adsorb, gather and remove free dye molecules so as to achieve the purpose of preventing the color of the fabric from being mixed.
In addition, a small amount of glycerin and aloe oil are added into the detergent, so that the detergent can be used as a moisturizing agent, a penetrating agent and a skin conditioner, cellulose is not obviously inhibited, the glycerin and the aloe oil have the effects of moisturizing and protecting hands for skin, the irritation of a surfactant is reduced in the detergent, the hand protection effect is realized, the detergent is more humanized, and people can be protected while cleaning clothes.
Sodium polyacrylate as thickener for conditioning and cleaningThe clean consistency can make the lotion stable and not delaminate in the shelf life. Among them, consistency is an important physical index, and the size of the consistency affects not only the sense but also the washing effect. Disodium ethylene diamine tetraacetate is a good chelating agent, can be chelated with various metal ions to form a stable chelate, and can be chelated with Ca in water2+、Mg2+Chelating and forming a dissolved state, preventing the formation of insoluble salt precipitates such as calcium, magnesium and the like, and being matched with sodium polyacrylate to easily form insoluble salt for divalent and above metal ions, so that the phenomenon of redeposition of dirt can be effectively reduced.
The invention will now be further described with reference to the following examples, which are intended to be illustrative of the invention and are not to be construed as limiting the invention.
Example 1
The compounding process of the anti-cross-color laundry detergent comprises the following steps: weighing 58 parts of deionized water according to a ratio, averagely dividing into two parts, then weighing 8 parts of sodium dodecyl benzene sulfonate, 4 parts of fatty alcohol-polyoxyethylene ether, 16 parts of alkyl glucoside, 3 parts of polyvinylpyrrolidone and 8 parts of anti-staining agent according to the ratio, uniformly mixing, stirring at a high speed at a rotating speed of about 1000rad/min, and then slowly adding one part of deionized water into the mixture in batches to obtain a solution A; weighing 5 parts of sodium tripolyphosphate, 3 parts of sodium polyacrylate, 1 part of glycerol, 1 part of aloe oil and 0.4 part of essence according to the proportioning amount, dissolving in the other part of deionized water to obtain a solution B, slowly adding the solution B into the solution A, cooling to room temperature, adding 8 parts of citric acid, and adjusting the pH value to be neutral or weakly acidic to obtain a target product.
The preparation process of the stain resistant agent comprises the following steps: adding a certain amount of dimethylbenzene into a reaction kettle at the temperature of 95 ℃, adding pyromellitic dianhydride and 3, 6-hydroxy-2, 7-naphthalene sulfonic acid into the reaction kettle according to the molar ratio of 1:4, and stirring until the mixture is uniformly mixed; then reacting at 100 ℃ for 2 hours at constant temperature to obtain a light brown crystalline solid which is soluble in water.
Examples 2 to 8
The compounding process of examples 2-8 is the same as example 1. The specific component proportions are as follows (unit: mass percent):
the preparation process of the resist used in example 8 is as follows: adding a certain amount of dimethylbenzene into a reaction kettle at the temperature of 95 ℃, adding pyromellitic dianhydride and 3, 6-hydroxy-2, 7-naphthalene sulfonic acid into the reaction kettle according to the molar ratio of 1:2, and stirring until the mixture is uniformly mixed; then reacting at 100 ℃ for 5 hours at constant temperature to obtain brown crystalline solid which is slightly soluble in water.
Detection example 1
The edible oil stain cloth and the vegetable juice stain cloth can be directly used as stain liquid due to large water content of the two raw materials, and a proper amount of materials can be taken to directly dip the white cotton cloth into the stain liquid. After the two kinds of dirty cloth are completely soaked, the two kinds of dirty cloth are rolled and pressed by a bench padder and then are dried in a drying oven at 60 ℃ to obtain the two kinds of dirty cloth.
Then, the detergent composition was tested according to GB/T13174-2008 "determination of detergency and circulating washing performance of a detergent for clothing", wherein a reference example is a common commercial detergent (blue moon laundry detergent) mixed for washing.
Detection example 2
The detergents prepared in examples 1 to 8 were tested for cross-color resistance, and 6 pieces of black-and-white-background printed cloth were dyed with direct dyes; the detergents prepared in examples 1 to 8 and the commercially available laundry detergent (blue moon laundry detergent) were prepared as 1 ‰ dilutions; and respectively measuring the K/S value of the cloth after cleaning and airing, wherein the lower the K/S value is, the better the anti-staining effect is.
From the above table it can be seen that: the cleaning capability of the detergent of the invention on the edible oil dirty cloth and the vegetable juice dirty cloth is close to that of the laundry detergent of the common commercial detergent; and the cross color prevention effect is much higher than that of the reference example.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.
Claims (9)
1. The anti-cross color washing agent for clothes is characterized by comprising the following components in parts by weight: 5-10 parts of sodium dodecyl benzene sulfonate, 2-6 parts of fatty alcohol-polyoxyethylene ether, 10-20 parts of alkyl glucoside, 2-5 parts of polyvinylpyrrolidone, 4-8 parts of anti-staining agent, 5-10 parts of sodium tripolyphosphate, 1-3 parts of sodium polyacrylate, 1-3 parts of glycerol, 1-3 parts of aloe oil, 0.2-1 part of essence, 0.2-1 part of citric acid and 40-74 parts of deionized water.
2. The anti-cross-color detergent for the clothes as claimed in claim 1, which is characterized by comprising the following components in parts by weight: 6-8 parts of sodium dodecyl benzene sulfonate, 2-4 parts of fatty alcohol-polyoxyethylene ether, 13-16 parts of alkyl glucoside, 2-3 parts of polyvinylpyrrolidone, 4-5 parts of anti-staining agent, 5-8 parts of sodium tripolyphosphate, 2-3 parts of sodium polyacrylate, 1-2 parts of glycerol, 1-2 parts of aloe oil, 0.2-0.5 part of essence, 0.2-0.5 part of citric acid and 56-69 parts of deionized water.
3. The anti-cross-color detergent for clothing as claimed in claim 1, wherein the fatty alcohol-polyoxyethylene ether has a structural formula:
4. The laundry cross-color prevention detergent of claim 1, wherein the alkyl glucoside has the following structural formula:
5. The laundry cross-color prevention detergent according to claim 1, wherein the polyvinylpyrrolidone has the following structural formula:
6. The laundry cross-color prevention detergent according to claim 1, wherein the stain blocker has a structural formula:
7. the laundry cross-color prevention detergent according to claim 6, characterized in that the anti-staining agent is prepared by the following process: adding a certain amount of dimethylbenzene into a reaction kettle at the temperature of 80-100 ℃, adding pyromellitic dianhydride and 3, 6-hydroxy-2, 7-naphthalene sulfonic acid into the reaction kettle according to the molar ratio of 1:4, and stirring until the mixture is uniformly mixed; and then reacting for 2-3 hours at a constant temperature of 100-110 ℃ to obtain a water-soluble light brown crystalline solid.
8. The laundry detergent according to claim 7, wherein the stain blocker is prepared according to the reaction formula:
9. the anti-cross-color detergent for the clothes according to any one of claims 1 to 8, characterized in that the compounding process of the detergent is as follows: weighing deionized water according to a ratio, evenly dividing the deionized water into two parts, weighing sodium dodecyl benzene sulfonate, alkyl glucoside, polyvinylpyrrolidone, fatty alcohol-polyoxyethylene ether and anti-staining agent according to the ratio, uniformly mixing, stirring at a high speed of about 1000rad/min, and slowly adding one part of deionized water into the mixture in batches to obtain a solution A; weighing sodium tripolyphosphate, sodium polyacrylate, glycerol, aloe oil and essence according to the proportion and dosage, dissolving in another part of deionized water to obtain solution B, slowly adding solution B into solution A, cooling to room temperature, adding citric acid, and adjusting pH to neutral or weakly acidic to obtain the target product.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112980604A (en) * | 2021-02-26 | 2021-06-18 | 宁波名锦服饰有限公司 | Anti-dyeing lotion suitable for jeans and preparation method thereof |
| CN115198515A (en) * | 2022-02-22 | 2022-10-18 | 杭州循空生物科技有限公司 | Non-woven fabric with acid dye adsorption effect and preparation method and application thereof |
| CN117304398A (en) * | 2023-11-28 | 2023-12-29 | 山东诺尔生物科技有限公司 | Modified polyacrylamide drag reducer and preparation method thereof |
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