CN116925862A

CN116925862A - Weakly acidic mild mousse composition for washing clothes and preparation method thereof

Info

Publication number: CN116925862A
Application number: CN202310887846.0A
Authority: CN
Inventors: 朱斌兰; 张少雄; 黄平
Original assignee: Guangdong Youkai Technology Co ltd
Current assignee: Guangdong Youkai Technology Co ltd
Priority date: 2023-07-19
Filing date: 2023-07-19
Publication date: 2023-10-24

Abstract

The invention provides a weakly acidic mild laundry mousse composition comprising the following components: natural soap-based surfactant, nonionic polymer, surfactant, auxiliary agent and water. Wherein the natural soap-based surfactant is C ₁₂ ‑C ₁₈ Metal salts of fatty acids, said nonionicThe preparation raw materials of the sub-polymer comprise dialkyl diethanol amine, ethylene oxide and propylene oxide. The mousse composition for clothes washing has stable performance under the weak acid condition, and has the characteristics of mild skin care and easy rinsing.

Description

Weakly acidic mild mousse composition for washing clothes and preparation method thereof

Technical Field

The invention relates to the technical field of detergents, in particular to a weakly acidic mild laundry mousse composition and a preparation method thereof.

Background

With the increasing demands of people for quality of life, the conventional detergents which only provide a detergent effect have far from satisfying the demands of consumers for multi-functionalization of products. The washing products tend to be diversified, and products which are energy-saving, efficient, mild, convenient to use and meet the requirements of safety and environmental protection are still the main stream direction of the development of the current and future washing products.

To meet environmental protection and consumer green consumer demand, industry manufacturers have actively pushed detergent products to use green raw materials, produce greenization, package greenization, product greenization, etc. through innovative technologies. Achieving greenization of detergent products, it is suggested to use renewable surfactants of vegetable origin. The surfactant of natural plant origin comprises the following specific components: natural fatty alcohol polyoxyethylene ether (C12-14 AEO series nonionic surfactant), natural fatty alcohol polyoxyethylene ether sodium sulfate (AES), natural soap base surfactant, fatty acid methyl ester ethoxylate FMEE, natural alkyl glycoside (C12-14 APG), soapberry saponin nonionic surfactant, cocamidopropyl betaine (CAB), amino acid surfactant, and the like.

Because of the fast-paced life, people pursue more convenient detergents, the mousse composition for clothes washing is matched with a special vacuum pressing pump head, foam can be pressed out instantly by lightly pressing, the mousse composition for clothes washing is more convenient and efficient to use, and has better experience feeling, so the mousse composition for clothes washing is favored by consumers. Therefore, the weakly acidic mild laundry mousse composition product has wide market prospect in the daily chemical field and meets the requirements of consumers.

As is known, the natural soap base surfactant is a common green and mild surfactant in the detergent, and the detergent added with the natural soap base has good defoaming and easy rinsing properties, can greatly reduce the rinsing water consumption of the detergent in the washing process, and meets the requirements of energy conservation and emission reduction. However, in general, fatty acids have good stability under alkaline conditions. Most of the commercially available mousse compositions for washing clothes are generally compounded by a plurality of surfactants with good foaming effect, and many of the mousse compositions also contain fatty acids and other non-green and mild surfactants, have weak pH and generate certain stimulus to skin after long-term use. In addition, some are weak acidic detergents, but do not contain fatty acids, and the product cannot be easily rinsed with low foam.

In view of the foregoing, there is a need to develop a detergent which contains a natural soap base, is weak acid, has no stimulation, is green and mild, has low foaming and easy bleaching and easy water rinsing, and is stable, so as to solve the problems in the prior art.

Disclosure of Invention

Based on this, the present invention provides a detergent which is a mildly acidic, mild laundry mousse composition containing natural soap base, incorporating a majority of plant based source surfactant, which is mild in formulation, easy to rinse and at the same time is able to improve stability. Solves the defects of the prior art and meets the demands of consumers.

An object of the present invention is to provide a mildly acidic laundry mousse composition comprising the following components in mass fraction:

wherein the natural soap-based surfactant is C ₁₂ -C ₁₈ Fatty acid salt is prepared by neutralization reaction of fatty acid;

the preparation raw materials of the nonionic polymer comprise dialkyl diethanol amine, ethylene oxide and propylene oxide.

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

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 fatty acid mass fraction is preferably 0.5-2%.

Further, the dialkyl diethanol amine is selected from one or more of dimethyl diethanol amine, diethyl diethanol amine and dihexyl diethanol amine.

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

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%.

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

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.

Further, the preservative is selected from one or more of methyl isothiazolinone, chloromethyl isothiazolinone, phenoxyethanol, sodium benzoate, methyl chloroisothiazolinone, benzisothiazolinone, isothiazolinone and derivatives thereof.

Further, the anti-redeposition agent is selected from one or more of sodium polyacrylate, maleic acid acrylic acid copolymer, carboxymethyl cellulose, homo-and copolymers of vinyl pyrrolidone.

Further, the enzyme preparation is selected from one or more of protease, cellulase, lipase, amylase, mannanase and pectase.

Further, the solvent is one or more selected from glycerol, propylene glycol, ethanol, polyethylene glycol and isopropanol.

Further, the photo-stable bleaching agent is selected from one or more of hypochlorite bleaching agents and peroxide bleaching agents; the peroxide bleaching agent is percarbonate or perborate.

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

Further, the perfume is selected from perfume ingredients suitable for any detergent product, either of natural origin or of chemically synthesized products, such as melon, fruit, flower and grass type perfumes.

Further, the pigment is any dye or pigment which can be suitably used in washing products.

Further, the salt is selected from one or more of sodium citrate, borax, disodium ethylenediamine tetraacetate, sodium percarbonate, sodium gluconate, sodium tartrate and sodium oxalate.

Another object of the present invention is to provide a process for preparing a weakly acidic warm laundry mousse composition as described above comprising the steps of:

(1) The preparation method of the nonionic polymer comprises the following steps:

s1, in a reaction kettle, keeping an inert and anhydrous environment, adding an initiator dialkyl diethanolamine and a catalyst, and then heating to 100-120 ℃;

s2, adding ethylene oxide into the mixture, and then reacting at 100-120 ℃;

s3, adding propylene oxide into the mixture, and then reacting at 100-120 ℃;

s4, cooling to room temperature, and discharging at the bottom of the kettle to obtain the product.

Further, the ratio of the amounts of the initiator, the catalyst and the ethylene oxide is 1:0.01:5 to 1:0.07:15.

Further, in step S1, the ratio of the amounts of the ethylene oxide and the propylene oxide is 1:0.2 to 1:5.

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

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

Further, in step S3, the reaction time is 3-10 hours.

(2) A process for preparing a weakly acidic warm laundry mousse composition:

l1, adding water into a container, adding sodium hydroxide and oleic acid, heating for reaction, and stirring until the sodium hydroxide and the oleic acid are dissolved;

l2, stopping heating, adding other surfactants, stirring, adding the nonionic polymer, and stirring to dissolve completely;

and L3, adding the balance of water, cooling, adjusting the pH, adding other auxiliary agents, and stirring until the auxiliary agents are dissolved to obtain the weakly acidic mild laundry mousse composition.

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

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

The invention has at least the following beneficial effects:

(1) The weakly acidic mild laundry mousse composition prepared by the invention is added with a nonionic polymer, and the nonionic polymer takes dialkyl diethanolamine as an initiator; the ethylene oxide and propylene oxide are generated by the reaction of the repeated units of chain extension, are of a T-shaped cross nonlinear structure, have good compatibility with natural soap base components, can be stably combined and wound between molecules under weak acid conditions, and have good compatibilization effect, so that the product can keep a stable and uniform system under low temperature or high temperature conditions.

(2) The invention is a formula system which is added with a surfactant from a green natural plant-based carbon chain source and does not contain dodecylbenzene sulfonic acid, the main components are more green and environment-friendly, meanwhile, the pH value of the formula is 6-6.5, and the formula is a weak acid formula, is milder and skin friendly, contains fatty acid salt and is easier to rinse.

Detailed Description

The detergents of the present invention will be described in further detail with reference to specific examples.

In order to more clearly illustrate the technical solution of the present invention, the following examples are set forth. The starting materials, reactions and workup procedures used in the examples are those commonly practiced in the market and known to those skilled in the art unless otherwise indicated.

The terms "comprising," "including," "containing," "having," or other variations thereof herein are intended to cover a non-closed inclusion, without distinguishing between them. The terms "comprising," "including," and "containing" are intended to be inclusive and mean that there may be additional steps and elements other than the affected end result. The compositions and methods/processes of the present invention can comprise, consist of, and consist essentially of the essential elements and limitations described herein, as well as additional or optional ingredients, components, steps, or limitations of any of the embodiments described herein.

All percentages, fractions and ratios are by weight of the total composition of the present invention, unless otherwise specified. All weights as they pertain to listed ingredients are calculated to correspond to the active level and, therefore, do not include solvents or byproducts that may be included in commercially available materials, unless otherwise specified. Unless otherwise indicated, the terms "content" and "amount" herein refer to the weight percent content, which may be represented by the symbol "%".

In the examples and comparative examples, the following materials will be used and have the indicated functions, all formulations taking place in an environment of 25 ℃.

NaOH: sodium hydroxide, an alkali neutralizer, was purchased from guangzhou reagent plant.

Citric acid: pH adjustor available from Guangzhou reagent works.

Sodium citrate: chelating agents, available from guangzhou reagent factories.

Dihexyldiethanolamine: initiator, available from Shanghai Ala Biochemical technologies Co., ltd.

Ethylene oxide, propylene oxide: chain extension units, available from Shanghai Ala Biochemical technologies Co., ltd.

Propylene glycol: solvents, purchased from guangzhou reagent plant.

Oleic acid: purchased from pacific fat.

C ₁₂ -C ₁₄ Fatty acids, purchased from pacific fat;

AES: fatty alcohol polyoxyethylene sulfate, wherein the fatty alcohol has 12-14 carbon atoms, the average degree of ethoxylation is 2, and an anionic surfactant; purchased from the company of fine chemistry, inc.

AEO9: fatty alcohol polyoxyethylene ether, wherein the fatty alcohol has 12-14 carbon atoms, the average degree of ethoxylation is 9, and a nonionic surfactant; purchased from basf (china) limited.

Disodium cocoyl glutamate: zwitterionic surfactants.

APG: alkyl polyglycosides, nonionic surfactants.

Preservative: methyl isothiazolinone and chloromethyl isothiazolinone mixtures.

FMEE: fatty acid methyl ester ethoxylates, nonionic surfactants, having the structure:

R-COO-[-CH ₂ -CH ₂ -O-] _x -CH ₃

wherein R is a vegetable carbon chain C12-14 derived from coconut oil; the EO number X is preferably 3-12, with the average degree of ethoxylation; purchased from light and medium daily chemical technology limited.

TABLE 1 composition ratios of laundry mousse compositions of examples 1-3, comparative examples 1-3

Mild weak acid laundry mousse compositions of examples 1-3

The components and ratios of the laundry mousse compositions of examples 1-3 are shown in table 1 and are formulated using the following preparation method:

s1, adding 1mol of initiator dihexyl diethanolamine and 0.01mmol of catalyst potassium hydroxide into a high-pressure reaction kettle under the nitrogen and anhydrous environment, then heating to 120 ℃ and stirring;

s2, slowly dripping 10mol of ethylene oxide into the reaction kettle, wherein the dripping is completed for 2 hours, and then, keeping the reaction kettle at 120 ℃ for 4 hours;

s3, slowly dripping 12mol of propylene oxide into the reaction kettle, wherein the dripping is completed for 3.5 hours, and then, keeping the temperature of 120 ℃ for reaction for 5 hours;

s4, cooling the reaction kettle to room temperature, and discharging at the bottom of the kettle to obtain the nonionic polymer.

(2) A process for preparing a laundry mousse composition:

l1, adding 10% water into a container, adding sodium hydroxide and oleic acid according to the formula of the table 1, heating to 70 ℃ for reaction for 40min, and stirring until the mixture is dissolved;

l2, stopping heating, adding other surfactants according to the formula of the table 1, stirring uniformly, adding the nonionic polymer prepared by the method, and stirring until the nonionic polymer is completely dissolved;

and L3, adding the rest of water, cooling, regulating the pH value to 6.5, adding other auxiliary agents according to the formula of the table 1, and stirring until the auxiliary agents are completely dissolved to obtain the weakly acidic mild laundry mousse composition.

Comparative example 1

The laundry mousse composition was prepared in the same manner as in example 1, except that the nonionic copolymer was not added to the laundry mousse composition of comparative example 1.

Comparative example 2

The laundry mousse composition was prepared in the same manner as in example 1, except that no C was added to the laundry mousse composition of comparative example 2 ₁₂ -C ₁₄ Fatty acid and sodium hydroxide.

Comparative example 3

The laundry mousse composition was prepared in the same manner as in example 1, except that the nonionic copolymer was added in an excessively small amount to the laundry mousse composition of comparative example 3.

Test case

1. The stability test method comprises the following steps:

the relevant stability is inspected, and specific inspection indexes are as follows:

low temperature stability: placing the sample at 0 ℃ for 4 weeks, and observing the appearance;

high temperature stability: placing the sample at 45 ℃ for 4 weeks, and observing the appearance;

freezing and thawing cycle: placing the sample at-15 ℃ for 24 hours, and recovering the sample at normal temperature for 24 hours; circulating for 4 times, recovering normal temperature, and observing appearance;

cold and hot circulation: placing the sample at 45 ℃ for 24 hours, and placing the sample in a refrigerator at-15 ℃ for 24 hours; circulating for 4 times, recovering normal temperature, and observing appearance;

the results obtained are shown in Table 2.

Table 2 results of stability test of laundry mousse compositions of examples 1-3, comparative examples 1, 3

	Example 1	Example 2	Example 3	Comparative example 1	Comparative example 3
						Low temperature stability	Clear and transparent	Clear and transparent	Clear and transparent	Milky cloudy	Milky cloudy
High temperature stability	Clear and transparent	Clear and transparent	Clear and transparent	Clear and transparent	Clear and transparent
						Freeze thawing cycle stability	Clear and transparent	Clear and transparent	Clear and transparent	Clear and transparent	Clear and transparent
Stability of cold and hot circulation	Clear and transparent	Clear and transparent	Clear and transparent	Clear and transparent	Clear and transparent

From the stability test results of Table 2, it can be seen that the laundry mousse compositions of examples 1-3 ensure stability of the sample at each test temperature. In comparative example 1, however, no nonionic polymer was added, and white turbidity was found in a low temperature environment; the composition of comparative example 3 had a problem of white turbidity because the content of nonionic polymer added was too small and did not have a good compatibilizing effect on the natural soap base. The nonionic polymer added in the mousse composition for the clothes washing in the examples 1-3 has a T-shaped cross nonlinear structure, has good compatibility with natural soap base components, can be stably combined and entangled between molecules under the weak acid condition, and has good compatibilization effect, so that the product forms a stable and uniform system under any temperature condition.

2. Foam test

Testing according to the Roche foam method of GB/T13173, wherein the testing concentration is 2.5g/L, and the hard water concentration is 150ppm; recording the initial volume of the foam, 5min, 10min later;

table 3 results of foam testing of the laundry mousse compositions of examples 1-3, comparative example 2

	Example 1	Example 2	Example 3	Comparative example 2
					Initial foam (mL)	125	136	120	126
5min foam (mL)	46	68	57	125
					10min foam (mL)	20	40	25	118

From the foam test data in Table 3, the samples of examples 1-3 with fatty acid added showed a relatively large reduction in foam volume after more than 5 minutes of observation, indicating that the laundry mousse composition was low foam and easy to rinse; in contrast, the sample of comparative example 2, which did not contain fatty acid, was very high in both initial foam and foam volume after standing, indicating that comparative example 2 was not easily rinsed with water.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. A weakly acidic mild laundry mousse composition comprising the following components in mass fraction:

wherein the natural soap-based surfactant is C ₁₂ -C ₁₈ The metal salt of fatty acid is prepared by the neutralization reaction of fatty acid;

2. The mildly acidic laundry mousse composition according to claim 1, wherein the dialkyldiethanolamine is selected from one or more of dimethyldiethanolamine, diethyldiethanolamine, dihexyldiethanolamine.

3. The mildly acidic laundry mousse composition according to claim 1, wherein the surfactant is selected from at least two of anionic, nonionic and zwitterionic surfactants.

4. A process for preparing a mildly acidic mild laundry mousse composition according to any one of claims 1 to 3, comprising the steps of:

the preparation method of the nonionic polymer comprises the following steps:

s2, adding ethylene oxide into a reaction kettle, and then reacting at 100-120 ℃;

s3, adding propylene oxide into a reaction kettle, and then reacting at 100-120 ℃;

s4, cooling to room temperature, and discharging at the bottom of the kettle to obtain the nonionic polymer.

5. The method of preparing a mildly acidic laundry mousse composition according to claim 4, wherein the ratio of the amounts of initiator, catalyst, ethylene oxide is 1:0.01:5 to 1:0.07:15.

6. The method of preparing a mildly acidic laundry mousse composition according to claim 4, wherein in step S1 the ratio of the amounts of the ethylene oxide and propylene oxide materials is from 1:0.2 to 1:5.

7. The process for preparing a mildly acidic laundry mousse composition according to claim 4, wherein the catalyst is selected from sodium hydroxide or potassium hydroxide.

8. The process for preparing a mildly acidic laundry mousse composition according to claim 4, wherein in step S2 the reaction time is 3-10 hours.

9. The process for preparing a mildly acidic laundry mousse composition according to claim 4, wherein in step S3 the reaction time is 3-10 hours.