A mild acid laundry mousse composition and method of making

Abstract

The present application provides a weakly acidic mild laundry mousse composition, the components of the weakly acidic mild laundry mousse composition include: natural soap-based surfactant, non-ionic polymer, surfactant, auxiliary, water. 12 -C 18 Metal salt of fatty acid, the raw material for preparing the non-ionic polymer includes N-alkyl diethanolamine, ethylene oxide, propylene oxide. The laundry mousse composition of the present application is stable in performance under weakly acidic conditions, has the characteristics of mild skin, easy to rinse over water.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of detergent technology, in particular to a weakly acidic mild laundry mousse composition and a preparation method thereof. BACKGROUND

[0002] With the improvement of people's quality of life, only providing conventional detergents with stain removal effect cannot meet the consumer's demand for product multifunction. Detergents will tend to be diversified, and energy-saving, efficient, mild, convenient to use, and safe and environmentally friendly products are still the mainstream direction of current and future development of washing products.

[0003] In order to meet the environmental protection and consumer's green consumption demand, industry manufacturers actively promote the use of green raw materials, production of green, packaging of green, and product of green through innovative technology. To realize the green of detergent products, it is recommended to use more renewable surfactants from plant sources. Natural plant-derived surfactants include the following: natural fatty alcohol polyoxyethylene ether (C12-14 AEO series nonionic surfactant), natural fatty alcohol polyoxyethylene ether sodium sulfate (AES), natural soap-based surfactant, fatty acid methyl ester ethoxylate FMEE, natural alkyl glucoside (C12-14 APG), soapberry saponin nonionic surfactant, cocamide propyl betaine (CAB), amino acid surfactant, etc.

[0004] Due to the fast-paced life, people pursue more convenient detergents. Laundry mousse composition is combined with a special vacuum pump head. Lightly press, and instant foam can be pressed out. It is more convenient, efficient, and better experience, so it is favored by consumers. Therefore, a weakly acidic mild laundry mousse composition product has a broad market prospect in the daily chemical field and meets the needs of consumers.

[0005] It is well known that natural soap-based surfactants are commonly used green and mild surfactants in detergents. Detergents with natural soap-based surfactants have good defoaming and easy rinsing properties, which can greatly reduce the amount of water used for rinsing during the washing process, meeting the needs of energy saving and emission reduction. However, generally, fatty acids can only have good stability under alkaline conditions. Most laundry mousse compositions on the market are generally compounded by a variety of surfactants with good foaming effect. Many contain fatty acids and other non-green and mild surfactants, and the pH is weakly alkaline, which can cause certain irritation to the skin after long-term use. In addition, there are also some weakly acidic detergents, but they do not contain fatty acids, and the product cannot be low-foaming and easy to rinse.

[0006] In summary, there is an urgent need to develop a natural soap-based weak acid non-irritating, green mild, low foam, easy to rinse and easy to wash detergent, and a stable product to solve the problems in the prior art. SUMMARY

[0007] Based on this, the present application provides a detergent, which is a natural soap-based weak acid mild laundry mousse composition, introducing a plurality of plant-based surfactants, the formula is mild, easy to rinse, and can improve stability. Solve the problems of prior art, meet the needs of consumers.

[0008] One object of the present application is to provide a weak acid mild laundry mousse composition, which comprises the following components by mass fraction:

[0009] Natural soap-based surfactant 0.1%-2%

[0010] Nonionic polymer 1%-4%

[0011] Surfactant 12%-25%

[0012] Auxiliary agent 1%-10%

[0013] Water balance

[0014] Among them, the natural soap-based surfactant is C 12 -C 18 Fatty acid salt, prepared by neutralization reaction of fatty acid;

[0015] The preparation raw material of the nonionic polymer includes N-hexyl diethanolamine, ethylene oxide and propylene oxide.

[0016] Preferably, the mass fraction of the nonionic polymer is preferably 1-2%.

[0017] Further, the fatty acid is selected from one or more of lauric acid (dodecanoic acid), myristic acid (tetradecanoic acid), palmitic acid (hexadecanoic acid) and oleic acid; preferably, the fatty acid is selected from oleic acid. Preferably, the mass fraction of the fatty acid is preferably 0.5-2%.

[0018] Further, the surfactant is selected from at least two of anionic surfactant, nonionic surfactant and zwitterionic surfactant.

[0019] Further, the mass fraction of the anionic surfactant is 5-15%, the mass fraction of the nonionic surfactant is 3-12%, and the mass fraction of the zwitterionic surfactant is 0.1-5%; preferably, the mass fraction of the anionic surfactant is preferably 6-12%, the mass fraction of the nonionic surfactant is preferably 3-10%, and the mass fraction of the zwitterionic surfactant is preferably 0.2-2%.

[0020] Further, the anionic surfactant is selected from one or more of fatty alcohol polyoxyethylene sulfate, fatty acid methyl ester sulfonate; the nonionic surfactant is selected from one or more of alkyl polyglycoside, fatty alcohol polyoxyethylene ether, fatty acid ester ethoxylate, fatty acid methyl ester ethoxylate, soapberry saponin; and the zwitterionic surfactant is selected from one or more of amino acid surfactant, betaine surfactant.

[0021] The auxiliary agent is selected from one or more of preservative, anti-redeposition agent, enzyme preparation, solvent, light stability bleaching agent, neutralizing agent, essence, pigment, salt, chelating agent, and optical brightening agent.

[0022] Further, the preservative is selected from one or more of methylisothiazolinone, chloromethylisothiazolinone, phenoxyethanol, sodium benzoate, methylchloroisothiazolinone, benzisothiazolinone, isothiazolinone and its derivatives.

[0023] Further, the anti-redeposition agent is selected from one or more of sodium polyacrylate, maleic acid-acrylic acid copolymer, carboxymethyl cellulose, homopolymers and copolymers of vinylpyrrolidone.

[0024] Further, the enzyme preparation is selected from one or more of protease, cellulase, lipase, amylase, mannanase, pectinase.

[0025] Further, the solvent is selected from one or more of glycerol, propylene glycol, ethanol, polyethylene glycol, isopropyl alcohol.

[0026] Further, the light stability bleaching agent is selected from one or more of hypochlorite bleaching agent, peroxide bleaching agent; the peroxide bleaching agent is percarbonate or perborate.

[0027] Further, the neutralizing agent is selected from one or more of sodium hydroxide, potassium hydroxide, monoethanolamine, triethanolamine.

[0028] Further, the essence is selected from perfume ingredients suitable for any detergent product, which can be of natural origin or chemically synthesized product, such as fruit and vegetable flavor, flower and plant flavor.

[0029] Further, the pigment is any dye or pigment that can be applied to the washing product.

[0030] Further, the salt is selected from one or more of sodium citrate, borax, ethylenediaminetetraacetic acid disodium salt, sodium percarbonate, sodium gluconate, sodium tartrate, sodium oxalate.

[0031] Another object of the present application is to provide a preparation method of the above-mentioned weakly acidic warm laundry mousse composition, comprising the following steps:

[0032] (1) Preparation method of the non-ionic polymer:

[0033] S1. In a reaction kettle, maintain inert and anhydrous environment, add initiator N-hexyl diethanolamine, and catalyst, then heat to 100-120°C;

[0034] S2. Add ethylene oxide thereto, then react at 100-120°C;

[0035] S3. Add propylene oxide thereto, then react at 100-120°C;

[0036] S4. Cool to room temperature, discharge from the kettle bottom to obtain the product.

[0037] Further, the mass ratio of the initiator, catalyst, and ethylene oxide is 1:0.01:5-1:0.07:15.

[0038] Further, in step S1, the mass ratio of the ethylene oxide and propylene oxide is 1:0.2-1:5.

[0039] Further, the catalyst is selected from sodium hydroxide or potassium hydroxide.

[0040] Further, in step S2, the reaction time is 3-10 h.

[0041] Further, in step S3, the reaction time is 3-10 h.

[0042] (2) Preparation method of the weakly acidic warm laundry mousse composition:

[0043] L1. Add water to a container, add sodium hydroxide and oleic acid, heat to react, and stir until dissolved;

[0044] L2. Stop heating, then add other surfactants, stir, then add the above-mentioned non-ionic polymer, and stir until completely dissolved;

[0045] L3. Add the remaining water, adjust the pH after cooling, then add other auxiliaries, stir until dissolved to obtain the weakly acidic warm laundry mousse composition.

[0046] Further, in step L1, the temperature of the heating reaction is 50-80℃, and the reaction time is 20 min-60 min.

[0047] Further, in step L3, the pH value is 6-6.5.

[0048] The present application has at least the following beneficial effects:

[0049] (1) The weakly acidic mild laundry mousse composition prepared by the present application adds a non-ionic polymer, which is generated by reacting N-hexyl diethanolamine as an initiator; ethylene oxide, propylene oxide as a chain-extending repeating unit, and has a T-shaped nonlinear structure, which has good compatibility with natural soap-based ingredients, and can stably combine and entangle between molecules under weakly acidic conditions, has good compatibilization, so that the product can maintain a stable and uniform system under low or high temperature conditions, and the present application further reasonably formulates the types and proportions of various surfactants, solves the technical problem of instability of natural soap-based surfactants in weakly acidic formula systems, improves the stability of the product, and ensures the appearance of the product.

[0050] (2) The present application adds a green natural plant-based carbon chain source surfactant, does not contain a dodecylbenzenesulfonic acid formula system, and the main components are more environmentally friendly, and at the same time, the formula pH value is 6-6.5, which is a weakly acidic formula, is more mild and skin-friendly, contains fatty acid salts, and is easier to rinse and wash. DETAILED DESCRIPTION

[0051] The following further describes the detergent of the present application in combination with specific examples.

[0052] In order to more clearly illustrate the technical solutions of the present application, the following examples are listed. The raw materials, reactions and post-treatment means appearing in the examples are all common raw materials on the market and technical means familiar to those skilled in the art, unless otherwise stated.

[0053] In this document, "including", "containing", "comprising", "having", or other variants thereof are intended to cover non-closed inclusion, and there is no distinction between these terms. The terms "containing", "including" mean that other steps and ingredients that do not affect the final result can be added. The composition and method / process of the present application can contain, consist of and consist essentially of the essential elements and limiting terms described herein and any additional or optional ingredients, components, steps or limiting terms described herein.

[0054] All percentages, ratios, and proportions herein are calculated by weight of the total composition unless otherwise indicated. All amounts are by weight of active material, calculated on the basis of the total composition, unless otherwise stated. The terms "amount" and "level", and the like, as used herein, refer to the concentration of an ingredient, which is expressed as a weight percentage, and can be denoted by the symbol "%".

[0055] In the examples and comparative examples, the following materials will be used, and have the functions indicated, all formulations were made in an environment of 25℃.

[0056] NaOH: Sodium hydroxide, base neutralizer, purchased from Guangzhou Reagent Factory.

[0057] Citric acid: pH regulator, purchased from Guangzhou Reagent Factory.

[0058] Sodium citrate: Chelating agent, purchased from Guangzhou Reagent Factory.

[0059] N-hexyl diethanolamine: Initiator, purchased from Shanghai Aldrin Biochemical Technology Co., Ltd.

[0060] Ethylene oxide, propylene oxide: Chain extension unit, purchased from Shanghai Aldrin Biochemical Technology Co., Ltd.

[0061] Propylene glycol: Solvent, purchased from Guangzhou Reagent Factory.

[0062] Oleic acid: Purchased from Pacific Oil.

[0063] C 12 -C 14 Fatty acid, purchased from Pacific Oil;

[0064] AES: Fatty alcohol polyoxyethylene sulfate, fatty alcohol carbon number 12-14, average degree of ethoxylation 2, anionic surfactant; purchased from Anhui Jintong Fine Chemical Co., Ltd.

[0065] AEO9: Fatty alcohol polyoxyethylene ether, fatty alcohol carbon number 12-14, average degree of ethoxylation 9, nonionic surfactant; purchased from BASF (China) Co., Ltd.

[0066] Disodium cocoyl glutamate: Zwitterionic surfactant.

[0067] APG: Alkyl polyglycoside, nonionic surfactant.

[0068] Preservative: Mixture of methylisothiazolinone and chloromethylisothiazolinone.

[0069] FMEE: Fatty acid methyl ester ethoxylate, nonionic surfactant, with the following structure:

[0070]

[0071] wherein R is a plant carbon chain C12-14 from coconut oil; the average degree of ethoxylation, the number of EOs X is preferably 3-12; available from Zhejiang Ligh Chemical Co., Ltd.

[0072] Table 1. Composition ratio of laundry mousse compositions of Examples 1-3, Comparative Examples 1-3

[0073]

[0074] Weakly acidic mild laundry mousse compositions of Examples 1-3

[0075] The components and their ratios in the laundry mousse compositions of Examples 1-3 are shown in Table 1, which are all prepared by the following preparation method:

[0076] (1) Preparation method of non-ionic polymer:

[0077] S1. In a high-pressure reaction kettle, 1 mol of initiator N-hexyl diethanolamine and 0.01 mmol of catalyst potassium hydroxide were added under nitrogen and anhydrous environment, then heated to 120°C and stirred;

[0078] S2. 10 mol of ethylene oxide was slowly dropped into the reaction kettle, which was completed within 2 h, and then kept at 120°C for 4 h;

[0079] S3. 12 mol of propylene oxide was slowly dropped into the reaction kettle, which was completed within 3.5 h, and then kept at 120°C for 5 h;

[0080] S4. The reaction kettle was cooled to room temperature, and the kettle bottom was discharged to obtain the non-ionic polymer.

[0081] (2) Preparation method of laundry mousse composition:

[0082] L1. 10% content of water was added to a container, sodium hydroxide and oleic acid were added according to the amount of the formula in Table 1, heated to 70°C and reacted for 40 min, and stirred until dissolved;

[0083] L2. Stop heating, then add other surfactants according to the amount of the formula in Table 1, stir until uniform, then add the non-ionic polymer prepared above, stir until completely dissolved;

[0084] L3. Add the remaining amount of water, adjust the pH value to 6.5 after cooling, then add other auxiliaries according to the amount of the formula in Table 1, stir until completely dissolved, to obtain the weakly acidic mild laundry mousse composition.

[0085] Comparative Example 1

[0086] A laundry mousse composition, the raw materials and preparation method are the same as example 1, the only difference is that no nonionic copolymer is added in the laundry mousse composition of comparative example 1.

[0087] Comparative example 2

[0088] A laundry mousse composition, the raw materials and preparation method are the same as example 1, the only difference is that no nonionic copolymer is added in the laundry mousse composition of comparative example 1. 12 -C 14 Fatty acid and sodium hydroxide.

[0089] Comparative example 3

[0090] A laundry mousse composition, the raw materials and preparation method are the same as example 1, the only difference is that no nonionic copolymer is added in the laundry mousse composition of comparative example 1.

[0091] Test example

[0092] 1. Stability test method:

[0093] The relevant stability investigation, the specific investigation index is as follows:

[0094] Low temperature stability: place the sample in 0℃ environment for 4 weeks, observe the appearance;

[0095] High temperature stability: place the sample in 45℃ environment for 4 weeks, observe the appearance;

[0096] Freeze-thaw cycle: place the sample in-15℃ environment for 24 h, recover to normal temperature for 24 h; cycle for 4 times, recover to normal temperature, observe the appearance;

[0097] Cold and hot cycle: place the sample in 45℃ environment for 24 h, place in-15℃ refrigerator for 24 h; cycle for 4 times, recover to normal temperature, observe the appearance;

[0098] The results are shown in table 2.

[0099] Table 2 Stability test results of laundry mousse compositions of example 1-3, comparative examples 1, 3

[0100]

[0101] As can be seen from the stability test results in Table 2, the laundry mousse compositions of Examples 1-3 can ensure the stability of the samples at each test temperature. The sample of Comparative Example 1 has no nonionic polymer added, and has a white turbidity problem in a low temperature environment; the composition of Comparative Example 3 has too little nonionic polymer added, and cannot provide good compatibilization for the natural soap base, so it has a white turbidity problem. The nonionic polymer added to the laundry mousse compositions of Examples 1-3 has a cross-shaped nonlinear structure, and has good compatibility with the natural soap base component; under weakly acidic conditions, the molecules can stably combine and entangle, and have good compatibilization, so that the product forms a stable and uniform system at any temperature.

[0102] 2. Foam test

[0103] The test was performed according to the Ross-Measuring Foam method of GB / T 13173, the test concentration was 2.5 g / L, and the hard water concentration was 150 ppm; the initial volume of the foam and the volume after 5 min and 10 min were recorded;

[0104] Table 3 Foam test results of the laundry mousse compositions of Examples 1-3 and Comparative Example 2

[0105]

[0106] As can be seen from the foam test data in Table 3, the samples of Examples 1-3 added with fatty acids have a relatively large decrease in foam volume after 5 min of observation, indicating that the laundry mousse compositions have low foam and are easy to rinse; the sample of Comparative Example 2, which does not contain fatty acids, has a very high initial foam and foam volume after standing, indicating that Comparative Example 2 is not easy to rinse.

[0107] It is apparent to those skilled in the art that the present application is not limited to the details of the foregoing exemplary embodiments, and that the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and not restrictive, and the scope of the present application should be defined by the appended claims rather than the above description, and it is intended to include all changes falling within the meaning and range of equivalents of the claims.

[0108] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is merely for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A mild, weakly acidic laundry mousse composition, characterized in that, The mildly acidic laundry mousse composition comprises the following components by mass fraction: C 12 -C 18 Metal salts of fatty acids: 0.1%-2% Nonionic polymers 1%-4% Surfactant 12%-25% Additives 1%-10% Water balance; Wherein, the C 12 -C 18 Metal salts of fatty acids are obtained by neutralization reactions of fatty acids; The raw materials for preparing the nonionic polymer include N-alkyldiethanolamine, ethylene oxide, and propylene oxide; The N-alkyldiethanolamine is N-hexyldiethanolamine; The surfactant is selected from at least two of anionic surfactants, nonionic surfactants, and amphoteric surfactants; The nonionic surfactant is selected from one or more of alkyl polysaccharide glycosides, fatty alcohol polyoxyethylene ethers, fatty acid methyl ester ethoxylates, and Sapindus mukorossi saponins; the zwitterionic surfactant is selected from one or more of amino acid-type surfactants and betaine-type surfactants. The method for preparing the weakly acidic, mild laundry mousse composition includes the following steps: Preparation methods of nonionic polymers: S1. In the reactor, maintain an inert and anhydrous environment, add the initiator N-alkyldiethanolamine and the catalyst, and then heat to 100-120℃; S2. Add ethylene oxide to the reactor and then react at 100-120℃; S3. Add propylene oxide to the reactor and then react at 100-120℃; S4. Cool to room temperature, discharge from the bottom of the reactor, and obtain the nonionic polymer.

2. The mildly acidic and gentle laundry mousse composition according to claim 1, characterized in that, The molar ratio of the initiator, catalyst, and ethylene oxide is 1:0.01:5 to 1:0.07:

15.

3. The mildly acidic and gentle laundry mousse composition according to claim 1, characterized in that, The molar ratio of ethylene oxide to propylene oxide is 1:0.2-1:

5.

4. The mildly acidic and gentle laundry mousse composition according to claim 1, characterized in that, The catalyst is selected from sodium hydroxide or potassium hydroxide.

5. The mildly acidic and gentle laundry mousse composition according to claim 1, characterized in that, In step S2, the reaction time is 3-10 h.

6. The mildly acidic and gentle laundry mousse composition according to claim 1, characterized in that, In step S3, the reaction time is 3-10 h.

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