Fluffy laundry detergent for down jackets and preparation method of fluffy laundry detergent
By using cashew phenol-based citric acid surfactant and other ingredients in down jacket laundry detergent, the problem that existing laundry detergent is difficult to effectively clean down jackets is solved, efficient cleaning and antibacterial effects are achieved, and the fluffy effect and warmth of down jackets are improved.
Patent Information
- Application Number
- CN202411796824.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-03-14
AI Technical Summary
There are not many types of down jacket laundry detergents on the market, and the quality is uneven, making it difficult to effectively remove oil, stains, and water stains, affecting the cleanliness and fluffy effect of down jackets.
A down-taking fluffy laundry detergent is used, and its raw materials include cashew phenol-based citrate surfactant, alkyl glycoside surfactant, hydrogen peroxide and alkaline protease. Through specific formulas and preparation methods, the antibacterial and detergent ability of laundry detergent is enhanced.
It achieves efficient cleaning of down jackets, improves the antibacterial performance and fluffy effect of down jackets, and ensures the warmth and appearance quality of down jackets.
Smart Images
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Abstract
Description
Technical Field
[0001] The invention relates to the technical field of laundry detergents, in particular to a down clothing fluffy laundry detergent and a preparation method thereof. Background Art
[0002] Down is a natural protein fiber with the characteristics of lightness, softness, and good warmth retention, so it is widely used in clothing, home textiles and other fields. Down jackets made of down are also one of the products that consumers often consume. However, down jackets will be affected by oil stains, stains, water stains, etc. during use, which will reduce the cleanliness of down jackets and thus affect their fluffy effect. There are not many varieties of down jacket laundry detergents on the current market, and the quality is uneven. Therefore, the preparation of a down jacket laundry detergent that is antibacterial and has a good cleaning effect is a hot topic for current researchers.
[0003] Surfactants, as an important category of fine chemical industry, are mainly used in chemical fields such as detergents and cosmetics. Cardanol is the main component of cashew nut shell oil. It is a green and environmentally friendly industrial raw material with the advantages of being renewable, low price, excellent performance, wide source, and pollution-free. It has attracted widespread attention in the fields of fine chemicals and polymers. Citric acid is a chemical derived from plants and can be used in the fields of food, pharmaceuticals, plastics, etc. Alkaline protease refers to a class of enzymes that can hydrolyze protein peptide bonds within the alkaline pH range. It is widely used in the fields of detergents, food, pharmaceuticals, etc. and has high economic and industrial value. Summary of the invention
[0004] 1. Technical issues to be solved
[0005] In view of the deficiencies in the prior art, the present invention provides a down coat fluffy laundry detergent and a preparation method thereof. The prepared laundry detergent has the characteristics of good cleaning effect and good antibacterial performance.
[0006] (II) Technical solution
[0007] A fluffy laundry detergent for down clothes, wherein the raw materials of the fluffy laundry detergent for down clothes comprise the following mass percentages: 10-20% of a cardanol-based citric acid surfactant, 10-20% of an alkyl glycoside surfactant, 1-3% of a solubilizer, 1.5-3% of a chelating agent, 0.2-0.8% of a preservative, 0.5-1% of a flavor, 0.1-0.5% of a fluorescent brightener, 0.5-4% of hydrogen peroxide, 0.2-1% of an alkaline protease, and the balance is deionized water;
[0008] Wherein, the preparation method of the fluffy laundry detergent for down clothes is:
[0009] Add a cardanol-based citric acid surfactant and an alkyl glycoside surfactant into deionized water, stir and disperse, then add a solubilizer, a chelating agent, a preservative, a flavor, and a fluorescent brightener, continue to stir and mix evenly, finally add hydrogen peroxide and alkaline protease, stir and disperse, and obtain a fluffy laundry detergent for down coats.
[0010] Preferably, the solubilizer is selected from one of xylene sulfonate and propylene glycol; the chelating agent is selected from any one of sodium citrate and sodium gluconate; the preservative is selected from any one of benzoic acid and sodium benzoate; and the flavor is any one of bluebell flavor and jasmine flavor.
[0011] Preferably, the fluorescent whitening agent is fluorescent whitening agent CBS-X; the mass fraction of hydrogen peroxide is 27%.
[0012] Preferably, the preparation method of the cardanol-based citric acid surfactant is:
[0013] (1) adding citric acid, allyl alcohol and p-toluenesulfonic acid to a toluene solvent, stirring and dispersing, heating to 110-120° C., stirring and reacting for 6-12 hours, filtering, distilling under reduced pressure, washing with deionized water and drying to obtain an intermediate 1; the mass ratio of citric acid to allyl alcohol is 1:1-1.5, and the amount of p-toluenesulfonic acid is 1-3% of the total mass of citric acid and allyl alcohol;
[0014] Under the catalysis of p-toluenesulfonic acid, the carboxyl group on the citric acid molecule and the hydroxyl group on the allyl alcohol molecule undergo esterification reaction to obtain intermediate 1. The reaction route is as follows:
[0015]
[0016] (2) adding intermediate 1 and diethanolamine to an ethanol solvent, stirring and dispersing, heating to 30-35° C., reacting for 36-48 hours, and after the reaction, vacuum filtering, washing with deionized water, and drying to obtain intermediate 2; the mass ratio of intermediate 1 to diethanolamine is 1:1.4-2;
[0017] The alkenyl group in intermediate 1 is reacted with the secondary amine in diethanolamine to obtain intermediate 2. The reaction route is as follows:
[0018]
[0019] (3) adding cardanol, intermediate 2, and a phase transfer catalyst to a 20% aqueous sodium hydroxide solution, stirring and dispersing, reacting at 90-100° C. for 3-8 hours, and after the reaction is completed, cooling to room temperature, extracting with ether, washing with deionized water, and drying to obtain intermediate 3; the mass ratio of cardanol, intermediate 2, and phase transfer catalyst is 2.4-3:1:0.1-0.2, and the phase transfer catalyst is tetraethylammonium bromide;
[0020] Under the catalysis of tetraethylammonium bromide, the chlorine contained in intermediate 2 is used to undergo a substitution reaction with the phenolic hydroxyl group in cardanol to obtain intermediate 3. The reaction route is shown below;
[0021]
[0022] (4) adding intermediate 3 to toluene solvent, stirring and dispersing, adding dibutyltin dilaurate thereto, adding hexamethylene diisocyanate thereto at 60-70° C., reacting for 20-36 hours under a nitrogen atmosphere, and after the reaction is completed, distilling under reduced pressure, washing with deionized water, and drying to obtain a cardanol-based citric acid surfactant; the mass ratio of intermediate 3 to hexamethylene diisocyanate is 5-6.5:1;
[0023] Under the catalysis of dibutyltin dilaurate, intermediate 3 is reacted with hexamethylene diisocyanate to obtain a cardanol-based citric acid surfactant. The reaction scheme is as follows:
[0024]
[0025] (III) Beneficial technical effects
[0026] The fluffy laundry detergent for down clothes prepared by the present invention contains hydrogen peroxide, and the active oxygen contained in the hydrogen peroxide is used to increase the antibacterial effect of the laundry detergent to achieve a cleaning effect; the protein pollutants are catalytically hydrolyzed into amino acids or small molecule peptide chains by alkaline protease, so as to further improve the cleaning effect; the calcium and magnesium particles in the water are chelated by the chelating agent, so as to avoid leaving dirt on the surface of the fabric. The present invention utilizes the oxidizing ability of hydrogen peroxide, the alkaline protease and the chelating agent to assist each other, and jointly improves the decontamination ability of the laundry detergent.
[0027] In addition, the cardanol-based citric acid surfactant prepared by the present invention is a nonionic surfactant, which is mainly prepared from cardanol and citric acid, has low raw material price, simple preparation method and novel structure. It contains polar groups, such as ether bonds, amide bonds, etc., and hydrophobic groups, such as non-polar hydrocarbon structures. By using such hydrophilic structures and hydrophobic structures, surface activity can be increased and surface tension can be reduced. The cardanol-based citric acid surfactant and the alkyl glycoside surfactant have a good synergistic effect. When applied to down jackets, the friction between feathers can be increased, which is conducive to removing stubborn dirt and further improving the cleanliness of feathers. The laundry detergent prepared by the present invention has good antibacterial properties and cleaning effects. DETAILED DESCRIPTION
[0028] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0029] Example 1
[0030] (1) 9.6 g of citric acid, 9.6 g of allyl alcohol, and 0.2 g of p-toluenesulfonic acid were added to a toluene solvent, stirred and dispersed, and the temperature was raised to 115° C. and stirred for reaction for 8 h. After the reaction was completed, the mixture was filtered, distilled under reduced pressure, washed with deionized water, and dried to obtain an intermediate 1.
[0031] (2) 7.8 g of intermediate 1 and 15.6 g of diethanolamine were added to an ethanol solvent, stirred and dispersed, and the temperature was raised to 30° C. The reaction was carried out for 38 h. After the reaction was completed, vacuum filtration was performed, the mixture was washed with deionized water, and dried to obtain intermediate 2.
[0032] (3) 24 g of cardanol, 10 g of intermediate 2, and 2 g of tetraethylammonium bromide phase transfer catalyst were added to a 20% aqueous sodium hydroxide solution, stirred and dispersed, and reacted at 100° C. for 6 h. After the reaction was completed, the mixture was cooled to room temperature, extracted with ether, washed with deionized water, and dried to obtain intermediate 3.
[0033] (4) 16 g of intermediate 3 was added to a toluene solvent, stirred and dispersed, and then 8 drops of dibutyltin dilaurate were added thereto. At 65° C., 3 g of hexamethylene diisocyanate was added thereto. The reaction was carried out under a nitrogen atmosphere for 24 h. After the reaction was completed, the mixture was distilled under reduced pressure, washed with deionized water, and dried to obtain a cardanol-based citric acid surfactant.
[0034] (5) Add 10 g of cardanol-based citric acid surfactant and 20 g of alkyl glycoside surfactant to 60.8 g of deionized water, stir and disperse, then add 2.5 g of propylene glycol solubilizer, 2 g of sodium citrate chelating agent, 0.5 g of sodium benzoate preservative, 0.6 g of blue bell essence, and 0.4 g of fluorescent brightener CBS-X, continue to stir and mix evenly, finally add 3 g of 27% hydrogen peroxide and 0.2 g of alkaline protease, stir and disperse, and obtain a fluffy laundry detergent for down clothes.
[0035] Example 2
[0036] (1) 9.6 g of citric acid, 14.4 g of propylene alcohol, and 0.7 g of p-toluenesulfonic acid were added to a toluene solvent, stirred and dispersed, and the temperature was raised to 110° C. and stirred for reaction for 12 h. After the reaction was completed, the mixture was filtered, distilled under reduced pressure, washed with deionized water, and dried to obtain an intermediate 1.
[0037] (2) 7.8 g of intermediate 1 and 15 g of diethanolamine were added to an ethanol solvent, stirred and dispersed, heated to 32° C., and reacted for 40 h. After the reaction was completed, vacuum filtered, washed with deionized water, and dried to obtain intermediate 2.
[0038] (3) 30 g of cardanol, 10 g of intermediate 2, and 1 g of tetraethylammonium bromide phase transfer catalyst were added to a 20% sodium hydroxide aqueous solution, stirred and dispersed, and reacted at 95° C. for 8 h. After the reaction was completed, the mixture was cooled to room temperature, extracted with ether, washed with deionized water, and dried to obtain intermediate 3.
[0039] (4) 18 g of the intermediate 3 was added to a toluene solvent, stirred and dispersed, and then 7 drops of dibutyltin dilaurate were added thereto. At 65° C., 3 g of hexamethylene diisocyanate was added thereto. The reaction was carried out under a nitrogen atmosphere for 32 hours. After the reaction was completed, the mixture was distilled under reduced pressure, washed with deionized water, and dried to obtain a cardanol-based citric acid surfactant.
[0040] (5) 12 g of cardanol-based citric acid surfactant and 18 g of alkyl glycoside surfactant were added to 62.4 g of deionized water, and the mixture was dispersed by stirring. Then, 2 g of propylene glycol solubilizer, 2.5 g of sodium citrate chelating agent, 0.5 g of sodium benzoate preservative, 0.8 g of jasmine essence, and 0.4 g of fluorescent brightener CBS-X were added thereto, and the mixture was stirred and mixed evenly. Finally, 1 g of 27% hydrogen peroxide and 0.4 g of alkaline protease were added thereto, and the mixture was dispersed by stirring to obtain a fluffy laundry detergent for down coats.
[0041] Example 3
[0042] (1) 9.6 g of citric acid, 12 g of allyl alcohol, and 0.5 g of p-toluenesulfonic acid were added to a toluene solvent, stirred and dispersed, and the temperature was raised to 120° C. and stirred for reaction for 6 h. After the reaction was completed, the mixture was filtered, distilled under reduced pressure, washed with deionized water, and dried to obtain an intermediate 1.
[0043] (2) 7.8 g of intermediate 1 and 14 g of diethanolamine were added to an ethanol solvent, stirred and dispersed, heated to 35° C., and reacted for 36 h. After the reaction was completed, vacuum filtration was performed, the mixture was washed with deionized water, and dried to obtain intermediate 2.
[0044] (3) 25 g of cardanol, 10 g of intermediate 2, and 1 g of tetraethylammonium bromide phase transfer catalyst were added to a 20% sodium hydroxide aqueous solution, stirred and dispersed, and reacted at 90° C. for 8 h. After the reaction was completed, the mixture was cooled to room temperature, extracted with ether, washed with deionized water, and dried to obtain intermediate 3.
[0045] (4) 15 g of intermediate 3 was added to a toluene solvent, stirred and dispersed, and then 8 drops of dibutyltin dilaurate were added thereto. At 60° C., 3 g of hexamethylene diisocyanate was added thereto. The reaction was carried out under a nitrogen atmosphere for 24 h. After the reaction was completed, the mixture was distilled under reduced pressure, washed with deionized water, and dried to obtain a cardanol-based citric acid surfactant.
[0046] (5) Add 15 g of cardanol-based citric acid surfactant and 15 g of alkyl glucoside surfactant to 63.1 g of deionized water, stir and disperse, then add 2 g of propylene glycol solubilizer, 2 g of sodium gluconate chelating agent, 0.8 g of benzoic acid preservative, 0.5 g of blue bell essence, 0.5 g of fluorescent brightener CBS-X, continue to stir and mix evenly, finally add 0.5 g of 27% hydrogen peroxide and 0.6 g of alkaline protease, stir and disperse, and obtain fluffy laundry detergent for down coats.
[0047] Example 4
[0048] (1) 9.6 g of citric acid, 10 g of allyl alcohol, and 0.5 g of p-toluenesulfonic acid were added to a toluene solvent, stirred and dispersed, and the temperature was raised to 115° C. and stirred for reaction for 12 h. After the reaction was completed, the mixture was filtered, distilled under reduced pressure, washed with deionized water, and dried to obtain an intermediate 1.
[0049] (2) 7.8 g of intermediate 1 and 12 g of diethanolamine were added to an ethanol solvent, stirred and dispersed, heated to 30° C., and reacted for 48 h. After the reaction was completed, vacuum filtered, washed with deionized water, and dried to obtain intermediate 2.
[0050] (3) 26 g of cardanol, 10 g of intermediate 2, and 1 g of tetraethylammonium bromide phase transfer catalyst were added to a 20% aqueous sodium hydroxide solution, stirred and dispersed, and reacted at 100° C. for 3 h. After the reaction was completed, the mixture was cooled to room temperature, extracted with ether, washed with deionized water, and dried to obtain intermediate 3.
[0051] (4) 18 g of intermediate 3 was added to a toluene solvent, stirred and dispersed, and then 6 drops of dibutyltin dilaurate were added thereto. 3 g of hexamethylene diisocyanate was added thereto at 70° C. and reacted for 36 h under a nitrogen atmosphere. After the reaction was completed, the mixture was distilled under reduced pressure, washed with deionized water, and dried to obtain a cardanol-based citric acid surfactant.
[0052] (5) 18 g of cardanol-based citric acid surfactant and 12 g of alkyl glycoside surfactant were added to 61 g of deionized water, and the mixture was dispersed by stirring. Then, 3 g of propylene glycol solubilizer, 1.5 g of sodium citrate chelating agent, 0.6 g of benzoic acid preservative, 1 g of jasmine essence, and 0.1 g of fluorescent brightener CBS-X were added thereto, and the mixture was stirred and mixed evenly. Finally, 2 g of 27% hydrogen peroxide and 0.8 g of alkaline protease were added thereto, and the mixture was dispersed by stirring to obtain a fluffy laundry detergent for down coats.
[0053] Example 5
[0054] (1) 9.6 g of citric acid, 12 g of allyl alcohol, and 0.6 g of p-toluenesulfonic acid were added to a toluene solvent, stirred and dispersed, and the temperature was raised to 120° C. and stirred for reaction for 8 h. After the reaction was completed, the mixture was filtered, distilled under reduced pressure, washed with deionized water, and dried to obtain an intermediate 1.
[0055] (2) 7.8 g of intermediate 1 and 11 g of diethanolamine were added to an ethanol solvent, stirred and dispersed, heated to 30° C., and reacted for 40 h. After the reaction was completed, vacuum filtered, washed with deionized water, and dried to obtain intermediate 2.
[0056] (3) 28 g of cardanol, 10 g of intermediate 2, and 1.5 g of tetraethylammonium bromide phase transfer catalyst were added to a 20% sodium hydroxide aqueous solution, stirred and dispersed, and reacted at 100° C. for 5 h. After the reaction was completed, the mixture was cooled to room temperature, extracted with ether, washed with deionized water, and dried to obtain intermediate 3.
[0057] (4) 19.5 g of intermediate 3 was added to toluene solvent, stirred and dispersed, and then 7 drops of dibutyltin dilaurate were added thereto. 3 g of hexamethylene diisocyanate was added thereto at 70° C. and reacted for 20 h under a nitrogen atmosphere. After the reaction was completed, the mixture was distilled under reduced pressure, washed with deionized water, and dried to obtain a cardanol-based citric acid surfactant.
[0058] (5) Add 20 g of cardanol-based citric acid surfactant and 10 g of alkyl glucoside surfactant to 59.8 g of deionized water, stir and disperse, then add 1 g of xylene sulfonate solubilizer, 3 g of sodium gluconate chelating agent, 0.2 g of sodium benzoate preservative, 0.6 g of blue bell essence, and 0.4 g of fluorescent brightener CBS-X, continue to stir and mix evenly, finally add 4 g of 27% hydrogen peroxide and 1 g of alkaline protease, stir and disperse, and obtain a fluffy laundry detergent for down coats.
[0059] Comparative Example 1
[0060] The difference between this comparative example and Example 3 is that no hydrogen peroxide is added, and the remaining steps and raw materials are the same as those of Example 3.
[0061] Comparative Example 2
[0062] The difference between this comparative example and Example 1 is that no cardanol-based citric acid surfactant is added, and the remaining steps and raw materials are the same as Example 1.
[0063] The antibacterial properties of laundry detergent were tested with reference to QB / T2738-2012, and the test bacteria were Staphylococcus aureus and Escherichia coli.
[0064] Table 1:
[0065]
[0066] It can be seen from the table that the laundry detergent prepared by the present invention has good antibacterial performance.
[0067] Refer to GB / T13173.6-2000 to test the bubble height of the detergent and judge the washing effect.
[0068] Table 2:
[0069]
[0070] Oil stains can inhibit foam. The higher the foam height, the better the washing and decontamination ability. It can be seen from the table that the laundry detergent prepared by the present invention has a better cleaning effect.
[0071] Weigh 30g of white duck down and add it to 1000mL of deionized water, then add 1g of laundry detergent, soak it in a water bath oscillator at 60°C for 30min, then shake and wash it for 60min, finally rinse it 5 times, and dry it to obtain the cleaned white duck down.
[0072] With reference to GB / T10288-2016, a fluffiness tester was used to test the fluffiness of down before and after washing.
[0073] Table 3:
[0074] Fluffiness / cm Example 1 17.4 Example 2 18.2 Example 3 19.1 Example 4 18.8 Example 5 18.5
[0075] It can be seen from the table that the minimum fluffiness is 17.4, and the fluffiness of Examples 1-5 is greater than the national standard requirement of 16.5 cm. Therefore, the laundry detergent prepared by the present invention has a good cleaning effect on down, thereby improving the fluffiness effect of the down.
[0076] 20 volunteers were selected to rub, squeeze, press and pinch the down in a clean environment without any unusual odors, so as to transmit its mechanical properties to the brain. The psychological reaction after the brain perceives the down is the basic feel of the fabric.
[0077] Table 4:
[0078] Hand feel evaluation Appearance Example 1 Fluffy, soft White, no stains Example 2 Fluffy and very soft White, no stains Example 3 Fluffy and very soft White, no stains Example 4 Fluffy and very soft White, no stains Example 5 Fluffy, soft White, no stains
[0079] It can be seen from the table that the laundry detergent prepared by the present invention has a good cleaning effect and a fluffy effect when applied to down.
[0080] Finally, it should be noted that the above embodiments do not limit the present invention in any form. For those skilled in the art, some modifications and improvements can be made to the present invention. Therefore, any modification or improvement made without departing from the spirit of the present invention belongs to the scope of protection claimed in the present invention.
Claims
1. A fluffy laundry detergent for down clothing, characterized in that: The raw materials of fluffy laundry detergent for down clothing contain the following percentages by mass: 10-20% of cardanol-based citric acid surfactant, 10-20% of alkyl glycoside surfactant, 1-3% of solubilizer, 1.5-3% of chelating agent, 0.2-0.8% of preservative, 0.5-1% of flavor, 0.1-0.5% of fluorescent brightener, 0.5-4% of hydrogen peroxide, 0.2-1% of alkaline protease, and the balance is deionized water; Wherein, the preparation method of the fluffy laundry detergent for down clothes is: Add a cardanol-based citric acid surfactant and an alkyl glycoside surfactant into deionized water, stir and disperse, then add a solubilizer, a chelating agent, a preservative, a flavor, and a fluorescent brightener, continue to stir and mix evenly, finally add hydrogen peroxide and alkaline protease, stir and disperse, and obtain a fluffy laundry detergent for down coats.
2. The fluffy laundry detergent for down clothes according to claim 1, characterized in that: The solubilizer is selected from one of xylene sulfonate and propylene glycol; the chelating agent is selected from any one of sodium citrate and sodium gluconate; the preservative is selected from any one of benzoic acid and sodium benzoate; and the flavor is any one of bluebell flavor and jasmine flavor.
3. The fluffy laundry detergent for down clothes according to claim 1, characterized in that: The fluorescent whitening agent is fluorescent whitening agent CBS-X; the mass fraction of hydrogen peroxide is 27%.
4. The down clothing fluffy laundry detergent according to claim 1, characterized in that: The preparation method of the cardanol-based citric acid surfactant is as follows: (1) Add citric acid, allyl alcohol and p-toluenesulfonic acid to toluene solvent, stir and disperse, heat to 110-120° C., stir and react for 6-12 hours, filter, evaporate under reduced pressure, wash with deionized water, and dry to obtain intermediate 1; (2) Adding intermediate 1 and diethanolamine to ethanol solvent, stirring and dispersing, heating to 30-35° C., reacting for 36-48 hours, and after the reaction, vacuum filtering, washing with deionized water, and drying to obtain intermediate 2; (3) adding cardanol, intermediate 2, and a phase transfer catalyst to a 20% aqueous sodium hydroxide solution, stirring and dispersing, reacting at 90-100° C. for 3-8 hours, and after the reaction is completed, cooling to room temperature, extracting with ether, washing with deionized water, and drying to obtain intermediate 3; (4) Add the intermediate 3 to a toluene solvent, stir and disperse, add dibutyltin dilaurate thereto, add hexamethylene diisocyanate thereto at 60-70° C., react for 20-36 hours under a nitrogen atmosphere, and after the reaction is completed, perform vacuum distillation, wash with deionized water, and dry to obtain a cardanol-based citric acid surfactant.
5. The fluffy laundry detergent for down clothes according to claim 4, characterized in that: In the above (1), the mass ratio of citric acid to allyl alcohol is 1:1-1.
5.
6. The down clothing fluffy laundry detergent according to claim 4, characterized in that: In the above (1), the amount of p-toluenesulfonic acid used is 1-3% of the total mass of citric acid and allyl alcohol.
7. The fluffy laundry detergent for down clothes according to claim 4, characterized in that: In the above (2), the mass ratio of the intermediate 1 to diethanolamine is 1:1.4-2.
8. The fluffy laundry detergent for down clothes according to claim 4, characterized in that: In the method (3), the mass ratio of cardanol, intermediate 2 and phase transfer catalyst is 2.4-3:1:0.1-0.2, and the phase transfer catalyst is tetraethylammonium bromide.
9. The down clothing fluffy laundry detergent according to claim 4, characterized in that: In the above (4), the mass ratio of the intermediate 3 to hexamethylene diisocyanate is 5-6.5:1.