A softening antistatic liquid detergent composition and a method for its preparation

Abstract

The present application relates to a kind of soft antistatic liquid detergent compositions, the detergent composition includes the following weight percentage of components: basic neutralizer, surfactant, washing builder, washing auxiliary, water;Wherein, the washing builder is double quaternary ammonium salt modified polysiloxane, alkyl dimethyl polyoxyethylene ammonium chloride and double carboxyl polyethylene glycol.By double quaternary ammonium salt modified polysiloxane, alkyl dimethyl polyoxyethylene ammonium chloride and double carboxyl polyethylene glycol mixing the washing builder obtained, the washing builder contains hydrophilic cation and the molecular chain segment of organic silicon in washing builder can strengthen quaternary ammonium salt cationic surfactant in the process of washing on the fabric surface adsorption, so that fabric has fluffy, soft and the slip of organic silicon simultaneously with good hydrophilicity and air permeability.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of daily chemical products, in particular to a softening and antistatic liquid detergent composition and a preparation method thereof. BACKGROUND

[0002] With the improvement of people's living standards, people not only have higher requirements for the cleaning power of liquid detergents. We all find that the clothes will become hard, the hand feeling will become poor, and the clothes will also become old and even break quickly if the clothes are washed a little more frequently in daily life. The reasons mainly have two aspects: one is that the fabric is soft treated with a large amount of softener when it is out of the factory, and the softener is gradually washed away in the washing process, so the hand feeling becomes poor. The second is that after the softener is washed away, the fabric fibers are also easily damaged, the clothes become not wear-resistant, are easily old and broken, and cause great waste. Therefore, the ideal liquid detergent composition should be that the solution presents a uniform state without stratification, has good detergency, and has the advantages of excellent washing and cleaning effect and softening effect. Since the market of fabric softener is not popular at present, it is necessary to add a small amount of softener to the laundry liquid to improve the hand feeling of the clothes after washing, reduce wear and tear, and waste. However, the main problems to be solved in the addition of softener to the laundry liquid at present are compatibility, the softener itself is often cationic, needs to be compatible with the laundry liquid system mainly composed of anionic surfactants, and the addition of the cationic softener will cause the product to precipitate, thereby affecting the stability of the product. Therefore, the compatibility problem of the cationic softener and the anionic laundry liquid system needs to be solved. The second is adsorbability, a part of the softener needs to be adsorbed on the surface of the fabric after washing to have softening effect. The third is detergency, the softener adsorbed on the surface of the fabric cannot affect the detergency of the laundry liquid.

[0003] At present, in order to achieve the effects of softening and antistatic, the commonly used softeners in the laundry liquid on the market are divided into four categories. One is cationic quaternary ammonium salt-imidazoline. The ordinary cationic quaternary ammonium salt is difficult to be compatible with the laundry liquid system because of the strong cationic property. Therefore, the imidazoline quaternary ammonium salt with good hydrophilicity is mainly used. However, the imidazoline quaternary ammonium salt has good hydrophilicity but poor adsorbability, and the softening effect after washing is general. The second is amino silicone oil. The amino silicone oil has poor air permeability and hydrophilicity, and has poor stability, and is prone to silicone stains, fabric yellowing and other problems, and also affects the detergency of the laundry liquid. The third is ternary copolymer silicone oil. The ternary copolymer silicone oil contains polyether groups, has good hydrophilicity, good stability and compatibility. Although the ternary copolymer silicone oil has good hydrophilicity, the cationic property is weak, the adsorption on the surface of the fabric is less during the washing process, and the softening effect is not obvious. The fourth is cationic polymer. The cationic polymer has good hydrophilicity, good stability and compatibility. The charge density of the cationic polymer is large, the adsorbability is good, and the softening effect is good. However, the adsorbability of the cationic polymer is too strong, which greatly affects the detergency, and the cationic polymer is prone to yellowing.

[0004] In summary, there is an urgent need to design a softening antistatic liquid detergent composition which can obtain good stability, good adsorption, good softening effect, strong antistatic ability and does not affect the decontamination power without using softener, so as to solve the problems existing in the prior art. This is a great challenge faced by the liquid detergent industry at present. SUMMARY

[0005] Based on this, the present application provides a softening antistatic liquid detergent composition to overcome the shortcomings of the prior art. The technical scheme adds a quaternary ammonium salt modified polysiloxane, an alkyl dimethyl polyoxyethylene ammonium chloride and a double carboxyl polyethylene glycol to obtain a washing synergist with strong hydrophilicity, adsorption and air permeability. The detergent composition of the present application is not affected by anionic surfactants in the solution, so it has excellent stability and compatibility and strong decontamination power.

[0006] One object of the present application is to provide a softening antistatic liquid detergent composition, which comprises the following components by weight percentage:

[0007]

[0008] The washing synergist comprises a quaternary ammonium salt modified polysiloxane, an alkyl dimethyl polyoxyethylene ammonium chloride and a double carboxyl polyethylene glycol.

[0009] Preferably, the detergent composition comprises the following components by weight percentage:

[0010]

[0011] Further, the quaternary ammonium salt modified polysiloxane has the following general structure:

[0012]

[0013] The R1N + X- is a quaternary ammonium salt group containing alkyl, R1 is selected from one of C4-10 alkyl containing hydroxyl, imidazoline group, and X is halogen;

[0014] The n1 is 2-8;

[0015] The alkyl dimethyl polyoxyethylene ammonium chloride has the following general structure:

[0016]

[0017] The R2 is selected from one of amido, carboxyl, ester, hydroxyl;

[0018] The n2 is 12-15;

[0019] The dicarboxyl polyethylene glycol has the following general structure:

[0020]

[0021] The n3 is 2-4;

[0022] Further, the washing booster includes the following components by weight percentage:

[0023]

[0024] Further, the alkaline neutralizing agent is selected from one or more of inorganic alkaline neutralizing agents and organic alkaline neutralizing agents.

[0025] Specifically, the inorganic alkaline neutralizing agent is selected from one or more of hydroxides, oxides, carbonates and bicarbonates.

[0026] Preferably, the inorganic alkaline neutralizing agent is selected from one or more of sodium hydroxide, potassium hydroxide, potassium carbonate, sodium bicarbonate, sodium carbonate.

[0027] Specifically, the organic alkaline neutralizing agent is selected from one or more of monoethanolamine, diethanolamine, triethanolamine, isopropanolamine, triisopropanolamine.

[0028] Further, the surfactant is selected from one or more of anionic surfactants, nonionic surfactants and amphoteric surfactants.

[0029] Specifically, the anionic surfactant is selected from one or more of linear alkyl benzene sulfonic acid and its salts, fatty acid salts, alkyl sulfate, ethoxylated fatty alcohol sulfate, alpha-olefin sulfonate, sulfosuccinate, fatty acid alkyl ester sulfonate and ethoxylated fatty alcohol ether carboxylate;

[0030] Specifically, the nonionic surfactant is selected from one or more of fatty alcohol alkoxylates, alkyl polyglycoside, fatty acid alkoxylates, fatty acid ethoxylates, fatty acid alkylol amide, ethoxylated sorbitan ester;

[0031] Specifically, the amphoteric surfactant is selected from one or more of amino acid surfactants, amine oxide surfactants, betaine surfactants, imidazoline surfactants.

[0032] Further, the washing aid is selected from one or more of inorganic salts, enzyme preparations, enzyme stabilizers, fluorescent whitening agents, conditioning agents, preservatives, colorants, color stabilizers and liquid fragrances.

[0033] Specifically, the inorganic salt is selected from one or more of halide, carbonate, bicarbonate, formate, acetate, sulfate, nitrate, citrate.

[0034] Preferably, the inorganic salt is one or more of sodium chloride, sodium sulfate.

[0035] The application also provides a method for preparing the softening and antistatic liquid detergent composition, comprising the following steps:

[0036] S1. Add the diquaternary ammonium salt modified polysiloxane, alkyl dimethyl polyoxyethylene ammonium chloride and double carboxyl polyethylene glycol into water, heat, stir to a uniform solution, and obtain a washing booster.

[0037] Further, the method further comprises the following steps:

[0038] S2. Add the alkaline neutralizer into water, and stir to dissolve;

[0039] S3. Add the anionic surfactant, and stir to dissolve;

[0040] S4. Add other surfactants and the washing booster, and stir to dissolve;

[0041] S5. Add the washing aid, adjust the pH of the solution to 6.5-8, and adjust the viscosity to 800-1500 Pa.s, and stir to a uniform appearance, and obtain the softening and antistatic liquid detergent composition.

[0042] Further, in step S1, the heating temperature is 70-80℃.

[0043] The application has the following beneficial effects:

[0044] 1. The softening and antistatic liquid detergent composition of the application, by mixing the washing booster obtained from the diquaternary ammonium salt modified polysiloxane, alkyl dimethyl polyoxyethylene ammonium chloride and double carboxyl polyethylene glycol, the hydrophilic cation in the washing booster can improve the hydrophilicity of the detergent; and the molecular chain segment of the organic silicon in the diquaternary ammonium salt modified polysiloxane can strengthen the adsorption on the fabric surface during the washing process, and at the same time, the diquaternary ammonium salt modified polysiloxane has the fluffy and soft characteristics of the quaternary ammonium salt cationic surfactant and the smoothness of the organic silicon, and has the characteristics of good hydrophilicity and air permeability.

[0045] 2. The carboxyl groups in the dicarboxyl polyethylene glycol can easily form intermolecular forces with the quaternary ammonium salt modified polysiloxane and the alkyl dimethyl polyoxyethylene ammonium chloride, maintaining the stability of the quaternary ammonium salt modified polysiloxane, the alkyl dimethyl polyoxyethylene ammonium chloride, and the synergistic improvement of the hydrophilicity, antistatic ability and detergency of the detergent; the washing synergist can weaken the influence of anionic surfactants in the liquid detergent on the cations in the washing synergist, so that the washing synergist can stably exist, and the refractive index of the organosilicon itself is high, which has little influence on the detergency and can well ensure the detergency of the product. DETAILED DESCRIPTION

[0046] 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 well known to those skilled in the art, unless otherwise stated.

[0047] The words "preferred", "preferably", "more preferred" and the like in the present application refer to the embodiments of the present application which can provide certain beneficial effects in certain cases. However, other embodiments can also be preferred in the same or other cases. In addition, the description of one or more preferred embodiments does not imply that other embodiments are not usable, nor is it intended to exclude other embodiments from the scope of the present application.

[0048] It should be understood that, except in any operating examples, or where otherwise indicated, all numbers appearing in the specification and claims, expressing amounts of components are to be understood as being modified in all instances by the term "about". Numerical parameters in the specification and associated claims, which are expressed as a range of values, for example, should be interpreted as an approximate range expressing the boundary of an upper value and a lower value. Thus, for example, a range of 1 to 10 should be interpreted as an approximate range expressing the boundary between 2 and 8.

[0049] NaOH: sodium hydroxide, alkaline neutralizing agent.

[0050] Sulfonic acid: linear alkyl benzene sulfonic acid, carbon atom number 10-14, anionic surfactant.

[0051] AEO9: ethoxylated fatty alcohol, average ethoxylation degree 9, nonionic surfactant.

[0052] AES: ethoxylated fatty alcohol sulfate, fatty alcohol carbon atom number 10-14, average ethoxylation degree 2, anionic surfactant, active matter content about 70%.

[0053] XL-80: ethoxylated isomeric decanol, average ethoxylation degree 8, nonionic surfactant.

[0054] Amino silicone oil: purchased from Jinan Silicon Harbor Chemical Co., Ltd., brand 03.

[0055] Biquaternary ammonium salt modified polysiloxane: purchased from InKchem Co., Ltd., with the brand name of Innocare QSQ01.

[0056] Alkyl dimethyl polyoxyethylene ammonium chloride: purchased from InKchem Co., Ltd., with the brand name of Innocare HEX25.

[0057] Bicarboxyl polyethylene glycol: purchased from Guangzhou Carbon Technology Co., Ltd.

[0058] PEG200: polyethylene glycol, purchased from Saudi Basic Industries Corporation.

[0059] Essence: liquid essence, purchased from Givavdan Company, with the brand name of Fruity-Eucalyptus.

[0060] Enzyme preparation: alkaline protease, purchased from Novozymes Company, with the brand name of Savinase Ultra 16XL.

[0061] Preservative: a mixture of methylisothiazolinone and chloromethylisothiazolinone.

[0062] The components and corresponding weight percentages in the softening antistatic liquid detergent compositions of Examples 1-3 and Comparative Examples 1-2 of the present application are shown in Table 1.

[0063] Table 1 Components and their weight percentages in Examples 1-3 and Comparative Examples 1-2

[0064]

[0065]

[0066] The preparation method of the softening antistatic liquid detergent compositions of Examples 1-3 includes the following steps:

[0067] S1. Stir 1 / 3 of the total amount of biquaternary ammonium salt modified polysiloxane, alkyl dimethyl polyoxyethylene ammonium chloride, bicarboxyl polyethylene glycol and deionized water, heat and stir at 75℃, mix uniformly to make the appearance uniform, and obtain a washing synergist;

[0068] S2. Add the basic neutralizing agent to the remaining amount of deionized water and stir to dissolve;

[0069] S3. Add the anionic surfactant and stir to dissolve;

[0070] S4. Add other surfactants and washing synergists, stir to dissolve, and make the solution uniform in appearance;

[0071] S5. Add the detergent builder and adjust the pH value of the solution to 7 and the viscosity to 1100 Pa.s, and stir until the appearance is uniform to obtain a softening and antistatic liquid detergent composition.

[0072] The difference between the comparative example and Example 1 is that:

[0073] In Comparative Example 1, the diquaternary ammonium salt modified polysiloxane is replaced by an equal amount of amino silicone oil, and the other ingredients and preparation methods are the same; in Comparative Example 2, the di-carboxyl polyethylene glycol is replaced by an equal amount of PEG200, and the other ingredients and preparation methods are the same.

[0074] Test Example 1

[0075] Product stability test

[0076] The liquid detergent compositions of Examples 1-3 and Comparative Examples 1-2 are selected for stability testing of storage appearance, and the specific testing method and evaluation criteria are as follows:

[0077] High temperature stability: After the liquid detergent composition is bottled and sealed, it is placed in a 45℃ environment, and after constant temperature for 1 month, it is restored to room temperature 25℃, and the composition appearance has no significant change, such as no stratification, turbidity, gel or precipitation, which is qualified for high temperature stability.

[0078] Low temperature stability: After the liquid detergent is bottled and sealed, it is placed in a 0℃ environment, and after constant temperature for 1 month, it is taken out immediately for observation. The composition appearance has no significant change, such as no stratification, turbidity, gel or precipitation, which is qualified for low temperature stability.

[0079] Freeze-thaw cycle stability: The liquid detergent is placed in a-15℃ environment, and after constant temperature for 24h, it is taken out and placed in a room temperature 25℃ environment for 24h for one cycle, and the composition state is observed after five consecutive cycles. The liquid detergent composition has no significant change in appearance, such as no stratification, turbidity, gel or precipitation, which is qualified for freeze-thaw cycle stability.

[0080] Normal temperature stability: After the liquid detergent composition is bottled and sealed, it is placed in a room temperature environment (25℃), and after 1 month, the composition appearance has no significant change, such as no stratification, turbidity, gel or precipitation, which is qualified for normal temperature stability.

[0081] The test results are shown in Table 2 below.

[0082] Table 2 Stability test results of liquid detergent compositions of Examples 1-3 and Comparative Examples 1-2

[0083]

[0084] As shown in the results of Table 2, the liquid detergent compositions of Examples 1-3, which contain the bis-quaternary ammonium salt modified polysiloxane, the alkyl dimethyl polyoxyethylene ammonium chloride and the bis-carboxyl polyethylene glycol, can synergistically work together to obtain a liquid detergent composition with good stability, which can be evenly distributed without delamination and can ensure the stability of the sample at each test temperature. The liquid detergent composition of Comparative Example 1, which replaces the bis-quaternary ammonium salt modified polysiloxane, and the liquid detergent composition of Comparative Example 2, which replaces the bis-carboxyl polyethylene glycol, both show significant haze and precipitation at each test temperature.

[0085] Test Example 2

[0086] Product softness performance test

[0087] The liquid detergent compositions of Examples 1 and Comparative Examples 1-2 were selected for softness performance testing.

[0088] Test method: 10 g of the liquid detergent composition was added to a drum washing machine, and a standard washing program was used to wash and dry a 25 cm * 15 cm cotton, polyester and towel, respectively. After washing was completed, 10 evaluators evaluated the softness of the cotton, polyester and towel, and the softness was scored from 1 to 5, with a higher score indicating better softness of the product.

[0089] The test results are shown in Table 3.

[0090] Table 3 Softness test results of the liquid detergent compositions of Examples 1 and Comparative Examples 1-2

[0091] Cotton Polyester Towel National standard laundry detergent 1 1 1 Example 1 4.5 3.7 4.5 Comparative example 1 3 2.2 3.2 Comparative example 2 2.1 1.8 2.5

[0092] As shown in Table 3, Example 1 was significantly better than Comparative Examples 1-2 and the national standard laundry liquid in softness; because the liquid detergent composition of Example 1 contains the bis-quaternary ammonium salt modified polysiloxane, the alkyl dimethyl polyoxyethylene ammonium chloride and the bis-carboxyl polyethylene glycol, the stable structure of the bis-cation has a large charge density and good hydrophilicity, which enhances the adsorption effect on the surface of the fabric during the washing process, and imparts soft, fluffy and smooth hand feeling to the fabric, which can be suitable for use with various fibers.

[0093] Test Example 3

[0094] Product stain removal ability test

[0095] The liquid detergent compositions of Examples 1 and Comparative Examples 1-2 were selected for stain removal ability testing, and the specific test method and evaluation criteria are as follows:

[0096] The detergency power test was carried out according to GB / T 13174 2008 Determination of detergency power and cyclic washing performance of laundry detergents. In the detergency test, the national standard laundry liquid and the liquid detergent compositions of Example 1 and Comparative Examples 1-2 were used at different test concentrations to ensure that the actual content of the actual added surfactant in each liquid detergent composition was close.

[0097] wherein, R value represents the detergency value; P value represents the detergency ratio value. Generally, the standard laundry liquid is used as the reference sample, and the detergency ratio value thereof is set to 1.00. The R value of other detergents is divided by the R value of the standard laundry liquid, and the P value is obtained. The higher the P value, the better the cleaning power.

[0098] The test results are shown in Table 4.

[0099] Table 4 Test results of detergency power of the liquid detergent compositions of Example 1 and Comparative Examples 1-2 and the standard laundry liquid

[0100]

[0101]

[0102] As can be seen from Table 4, the liquid detergent composition of Example 1, in which the bis-quaternary ammonium salt modified polysiloxane, the alkyl dimethyl polyoxyethylene ammonium chloride and the bis-carboxyl polyethylene glycol are added, has little effect on the detergency. This is mainly because the refractive index of the organic silicon in the bis-quaternary ammonium salt modified polysiloxane is relatively high, and the effect on the detergency is small. On the other hand, the three components are synergistic, so that the washing booster can stably exist in the liquid detergent composition and is not affected by the anionic surfactant in the liquid detergent composition, thereby maintaining the detergency of the detergent. In Comparative Examples 1-2, the bis-quaternary ammonium salt modified polysiloxane and the bis-carboxyl polyethylene glycol are replaced, respectively, so that the three components do not stably exist in the system of the liquid detergent composition, and are affected by the anionic surfactant, resulting in a significant decrease in the detergency.

[0103] Test Example 4

[0104] Antistatic property test

[0105] The liquid detergent compositions of Example 1-2 and Comparative Examples 1-2 were selected, and the antistatic property test was carried out according to GBT 16801-2013 Test method for antistatic property of fabric conditioner.

[0106] The test results are shown in Table 5.

[0107] Table 5 Test results of antistatic property of the liquid detergent compositions of Example 1-2 and Comparative Examples 1-2

[0108]

[0109] As shown in Table 5, the fabric surface resistance logarithmic values of the liquid detergent compositions of Examples 1-2 indicate that the quaternary ammonium salt modified polysiloxane, alkyl dimethyl polyoxyethylene ammonium chloride and the bis-carboxyl polyethylene glycol have a synergistic effect, compared with the fabric surface resistance logarithmic values of Comparative Examples 1-2, the liquid detergent compositions of Examples 1-2 have obvious antistatic effect.

[0110] It is apparent to those skilled in the art that the application is not limited to the details of the foregoing exemplary embodiments, and that the present application can be implemented in other particular 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, the scope of the application 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.

[0111] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the specification is described in this way only for the sake of clarity, those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A softening antistatic liquid detergent composition characterized in that, The detergent composition comprises the following components by weight percentage: Alkaline neutralizer 0.5-3.5% Surfactant 15-40% Detergent builder 3-12% Detergent aid 0.1-10% Water balance; The detergent builder comprises bis-quaternary ammonium salt modified polysiloxane, alkyl dimethyl polyoxyethylene ammonium chloride and double carboxyl polyethylene glycol. The alkyl dimethyl polyoxyethylene ammonium chloride has the following general structure: The R2 is selected from one of amido, carboxyl, ester, hydroxyl; The n2 is 12-15; The double carboxyl polyethylene glycol has the following general structure: The n3 is 2-4; The detergent builder comprises the following components by weight percentage: Bis-quaternary ammonium salt modified polysiloxane 0.5-3% Alkyl dimethyl polyoxyethylene ammonium chloride 0.2-2% Double carboxyl polyethylene glycol 1-5% Water balance; The surfactant is a mixture of anionic surfactant, nonionic surfactant and amphoteric surfactant. The anionic surfactant is a mixture of linear alkyl benzene sulfonic acid and ethoxylated fatty alcohol ether sulfate.

2. The soft antistatic liquid detergent composition according to claim 1, characterized in that, The alkaline neutralizer is selected from one or more of inorganic alkaline neutralizer and organic alkaline neutralizer.

3. The soft antistatic liquid detergent composition according to claim 1, characterized in that, The detergent aid is selected from one or more of inorganic salt, enzyme preparation, enzyme stabilizer, fluorescent whitening agent, regulator, preservative, colorant, color stabilizer and liquid essence.

4. A process for preparing the soft antistatic liquid detergent composition according to any one of claims 1 to 3, characterized in that, The method comprises the following steps: S1. Bis-quaternary ammonium salt modified polysiloxane, alkyl dimethyl polyoxyethylene ammonium chloride, double carboxyl polyethylene glycol are added into water, heated, stirred to obtain the detergent builder.

5. The method of making a compliant antistatic liquid detergent composition according to claim 4, characterized in that, The method further comprises the following steps: S2. The alkaline neutralizer is added into water, stirred and dissolved; S3. The anionic surfactant is added, stirred and dissolved; S4. Other surfactants and the detergent builder are added, stirred and dissolved; S5. The detergent aid is added, and the product quality parameters are adjusted, stirred until the appearance is uniform to obtain the softening and antistatic liquid detergent composition.

6. The method of making a compliant antistatic liquid detergent composition according to claim 4, characterized in that, In step S1, the heating temperature is 70-80℃.

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