A fabric conditioner and liquid detergent compositions for use thereof

Abstract

The application discloses a fabric finishing agent and a liquid detergent composition applying the same, and relates to the technical field of daily chemical industry.The liquid detergent composition is composed of the following components and mass fractions: 0.2-5% of the fabric finishing agent, 2-50% of an anionic surfactant, 2-25% of a nonionic surfactant, 0.1-10% of an auxiliary agent, and the rest is solvent; and the sum of the mass fractions of the anionic surfactant and the nonionic surfactant is greater than or equal to 15%. The liquid detergent composition can simultaneously endow cotton fabric and polyester fabric with excellent moisture absorption and quick-drying properties, and has excellent washing and decontamination efficiency and good appearance stability.

Description

A fabric finishing agent and a liquid detergent composition thereof. Technical Field

[0001] This invention relates to the field of daily chemical technology, and in particular to a fabric finishing agent that imparts excellent moisture absorption and quick-drying properties to fabrics and a liquid detergent composition thereof. Background Technology

[0002] In recent years, with the promulgation and implementation of policies such as the "National Fitness Program (2021-2025)," more and more people are paying attention to personal health and an active lifestyle, forming a new trend of sports and fitness and outdoor activities. As people spend more time on sports and outdoor activities, the trend of casual wear and sportswear blending together is increasingly favored by consumers. People expect clothing to be comfortable, allowing sweat to evaporate quickly during active activities, preventing the clothing from sticking to the body / skin and keeping the body dry and comfortable; in other words, clothing needs to have excellent moisture-wicking and quick-drying properties.

[0003] Natural fibers, such as cotton, have good moisture absorption and are comfortable to wear. However, when a person sweats heavily, cotton fibers expand due to moisture absorption, reducing breathability and sticking to the skin. Simultaneously, the rate of moisture evaporation is slow, creating a cold and damp feeling. Synthetic fibers, such as polyester, have low water absorption and poor moisture permeability. Due to static electricity buildup, they easily become tangled when worn, especially during activity, leading to a stuffy feeling. Neither natural nor synthetic fibers can simultaneously possess both moisture absorption and quick-drying properties. Current methods for improving the moisture absorption and quick-drying properties of fabrics are mainly physical and chemical. Chemical methods primarily involve adding moisture-absorbing and quick-drying finishing agents during the fabric finishing stage to achieve rapid moisture absorption and dissipation for high comfort. Currently, most commonly available moisture-absorbing and quick-drying finishing agents are polyester polyethers and are typically only applied to polyester or its blends; their effectiveness on other types of fabrics is generally limited.

[0004] Clothing with good moisture-wicking properties can quickly absorb sweat, keeping the skin dry and reducing the sticky feeling. Clothing with good quick-drying properties can quickly evaporate sweat, allowing the clothing to dry quickly and avoiding the discomfort of wearing wet clothes for a long time. Only clothing with excellent moisture-wicking and quick-drying properties can provide consumers with the best wearing experience. Cotton and polyester are the most common fabric materials for consumers. Cotton fabrics have good moisture-wicking properties but poor quick-drying properties, while polyester fabrics have good quick-drying properties but lack moisture-wicking properties. The industry lacks technical solutions that can simultaneously improve the moisture-wicking and quick-drying properties of cotton and polyester fabrics. Moreover, current quick-drying finishing technologies for fabrics are concentrated in the post-fabricating finishing stage, and technologies that can achieve quick-drying finishing for cotton and polyester clothing during daily washing are even rarer.

[0005] For consumers, with rising living standards and changing consumption habits, the demand for laundry products is increasing. Beyond basic cleaning functions, they expect products to offer added value. Improving the moisture-wicking and quick-drying capabilities of clothing while removing stains is particularly important for active consumers. Therefore, the industry aims to develop detergents that effectively enhance the moisture-wicking and quick-drying properties of clothing, helping consumers improve garment comfort. Summary of the Invention

[0006] To solve the above-mentioned technical problems, the present invention provides a fabric finishing agent that imparts excellent moisture absorption and quick-drying properties to washed fabrics.

[0007] Another object of the present invention is to provide a detergent composition that imparts excellent moisture absorption and quick-drying properties to fabrics after washing.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A liquid detergent composition comprising the following components and their mass fractions:

[0010] 0.2% to 5% of the above-mentioned fabric finishing agent,

[0011] 2% to 50% anionic surfactants,

[0012] 2% to 25% nonionic surfactant,

[0013] 0.1% to 10% adjuvants,

[0014] The remainder is solvent;

[0015] The sum of the mass fractions of the anionic surfactant and the nonionic surfactant is ≥15%.

[0016] The fabric finishing agent is alkylated polyoxypropylene with a weight-average molecular weight of 800 to 3000 and has the following general chemical formula:

[0017]

[0018] Where R1 is C a H 2a+1 , where a is a positive integer from 1 to 6; R2 is OH or OC. b H 2b+1 b is a positive integer from 1 to 6; n is a positive integer from 13 to 57.

[0019] The anionic surfactant is selected from one or more mixtures of alkylbenzene sulfonates, C8 to C18 alkyl sulfates, C8 to C18 ethoxylated fatty alcohol sulfates, C8 to C18 fatty acid salts, and ethoxylated fatty alcohol ether carboxylates. Preferably, the alkylbenzene sulfonate has 6 to 24 alkyl carbons and is selected from straight-chain alkyl and branched alkyl groups. It can be a saturated alkyl group or an alkyl group containing one or more unsaturated double bonds.

[0020] The nonionic surfactant is selected from one or more of the following: fatty alcohol alkoxylates, alkyl polysaccharides, fatty acid ester alkoxylates, fatty acid alkylolamides, fatty acid methyl ester ethoxylates, and polyether surfactants.

[0021] The additives are selected from one or more of the following: acid-base regulators, enzyme preparations, preservatives, polymers, inorganic salts, viscosity modifiers, antibacterial agents, colorants, fragrances, and chelating agents.

[0022] The solvent is a mixture of water and an organic solvent; the organic solvent is selected from polyols and / or polyol ethers.

[0023] The liquid detergent composition imparts excellent moisture absorption and quick-drying properties to washed cotton or polyester fabrics. Excellent moisture absorption is defined as follows: cotton fabric, after washing, has a saturated water absorption rate ≥200% and a water permeation time ≤5s; polyester fabric, after washing, has a saturated water absorption rate ≥400% and a water permeation time ≤5s. Excellent quick-drying properties are defined as follows: cotton fabric, after washing, has a water stain diffusion area ≥50% and an evaporation rate ≥29% / h; polyester fabric, after washing, has a water stain diffusion area ≥50% and an evaporation rate ≥60% / h.

[0024] The liquid detergent composition also exhibits excellent washing and detergency performance and good appearance stability. Excellent washing and detergency performance means that the liquid detergent composition has a detergency ratio (P) ≥ 1.10 for soiled cloths containing sebum, protein, and carbon black. Good appearance stability means that after aging treatment, the liquid detergent composition remains a homogeneous system with essentially no change in color.

[0025] The fabric finishing agent provided by this invention can be used in liquid detergent compositions to improve the moisture absorption and quick-drying properties of fabrics. This fabric finishing agent has a weight-average molecular weight of 800 to 3000 and has the following general chemical formula:

[0026]

[0027] Where R1 is C a H 2a+1 , where a is a positive integer from 1 to 6; R2 is OH or OC. bH 2b+1 b is a positive integer from 1 to 6; n is a positive integer from 13 to 57. Preferably, the fabric finishing agent has a mass content of 0.2% to 5% in the detergent composition; the fabric is a cotton-containing fabric or a polyester fabric.

[0028] The technical solution described in this invention has the following beneficial effects:

[0029] 1. The fabric finishing agent provided by the present invention, when applied in a liquid detergent composition, can impart excellent moisture absorption and quick-drying properties to the washed fabric.

[0030] 2. The liquid detergent composition provided by the present invention achieves moisture absorption and quick-drying finishing on the fabric surface, while having excellent washing and stain removal performance and good appearance stability.

[0031] 3. The liquid detergent composition provided by this invention is suitable for improving the moisture absorption and quick-drying properties of both cotton and polyester fabrics. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 shows the water stain diffusion of the polyester fabric sample in Example 1.

[0034] Figure 2 shows the water stain diffusion of the polyester fabric sample in Example 2.

[0035] Figure 3 shows the water stain diffusion of the polyester fabric sample in Example 4.

[0036] Figure 4 shows the water stain diffusion of the polyester fabric sample in Comparative Example 2.

[0037] Figure 5 shows the water stain diffusion of the polyester fabric sample in Comparative Example 6.

[0038] Figure 6 is an image of the appearance of the detergent composition sample of Example 2 after aging.

[0039] Figure 7 shows the appearance of the detergent composition sample of Comparative Example 5 after aging.

[0040] Figure 8 is a magnified view of a portion of Figure 7.

[0041] Figure 9 shows the appearance of the detergent composition sample of Comparative Example 8 after aging. Detailed Implementation

[0042] To better understand the technical content of the present invention, the technical solution of the present invention will be further introduced and explained below in conjunction with specific embodiments.

[0043] For those skilled in the art, the features, beneficial effects, and advantages of the present invention will become clearer upon reading the contents disclosed in this specification.

[0044] In this invention, unless otherwise specified, all percentages, fractions, and ratios are calculated based on the total mass of the compositions of this invention. Unless otherwise specified, the mass fractions of listed components refer to the content of active substances, i.e., the listed components do not include diluents, byproducts, or other components that may be present in raw materials obtained through purchase. The term "mass fraction" is represented by the symbol "%".

[0045] Unless otherwise specified, the preparation and testing environment for the compositions of this invention is 25°C.

[0046] The dimensions and numerical values ​​disclosed in this invention should not be construed as strict limitations on the precise values ​​stated therein. Unless otherwise specified, each such dimension is intended to represent the value and a range of functionally equivalent values ​​around that value. For example, a dimension disclosed as “45°C” is intended to represent “about 45°C”.

[0047] The terms "comprising," "including," "containing," "containing," "having," or other variations thereof in this invention are intended to cover non-closed inclusion, and no distinction is made between these terms. The term "comprising" also includes the terms "consisting of" and "essentially composed of," meaning that other components or preparation steps may be added without significantly altering the final result, depending on the specific circumstances. The detergent compositions of this invention may comprise those consisting of and substantially consisting of the essential elements and limitations described herein, as well as any additional or optional ingredients, components, steps, or limitations described herein.

[0048] In this invention, the terms "performance" and "efficiency" are not distinguished. Similarly, the terms "hygroscopicity" and "hygroscopic performance" are not distinguished, as are "quick-drying properties" and "quick-drying performance." Furthermore, the terms "alkylated polypropylene oxide," "alkyl-terminated polypropylene oxide," "alkylated polyoxypropylene," "alkyl-terminated polyoxypropylene," "alkyl ether polyoxypropylene," "alkyl ether polypropylene glycol," "alkylated polypropylene oxide," "alkyl-terminated polypropylene oxide," "alkylated polyoxypropylene," "alkyl-terminated polyoxypropylene," "alkyl ether polypropylene glycol," "polypropylene glycol alkyl ether," "polyoxypropylene alkyl ether," and "polypropylene oxide alkyl ether" are not distinguished in this invention.

[0049] Liquid detergent composition

[0050] This invention relates to a liquid detergent composition, the term "liquid" encompassing forms in which a solid component is present within a liquid composition such as a dispersion, gel, or slurry. The liquid composition also includes capsule-type detergents prepared using the liquid composition of this invention.

[0051] The term "liquid detergent composition" refers to any fabric detergent composition that includes a liquid capable of wetting and treating fabrics. Wetting and treating fabrics can be achieved through methods such as pre-coating with the undiluted composition, hand washing after dilution with tap water, or machine washing. Liquid detergent compositions can provide fabric care benefits including stain removal, moisture absorption, and quick drying.

[0052] The liquid detergent composition of the present invention comprises surfactant, fabric finishing agent, auxiliary agent, and solvent.

[0053] The surfactant is specifically a mixture of anionic and nonionic surfactants. The sum of the mass fractions of the anionic and nonionic surfactants is ≥15%.

[0054] The additives include one or more of the following: acid-base regulators, enzyme preparations, preservatives, polymers, inorganic salts, viscosity modifiers, antibacterial agents, colorants, fragrances, and chelating agents.

[0055] Fabric finishing agents

[0056] The liquid detergent composition of the present invention contains 0.2% to 5% of a fabric finishing agent selected from alkylated polyoxypropylene, having a weight-average molecular weight of 800 to 3000, and having the following general chemical formula;

[0057]

[0058] R1: C a H 2a+1 , where a is a positive integer from 1 to 6.

[0059] R2: OH or OC b H 2b+1 b is a positive integer from 1 to 6.

[0060] n is a positive integer from 13 to 57.

[0061] Anionic surfactants

[0062] The liquid detergent composition of the present invention contains 2% to 50% anionic surfactant selected from one or more mixtures of alkylbenzene sulfonates, C8 to C18 alkyl sulfates, C8 to C18 ethoxylated fatty alcohol sulfates, C8 to C18 fatty acid salts, and ethoxylated fatty alcohol ether carboxylates.

[0063] The cationic portion of the anionic surfactant is selected from sodium ions, potassium ions, ammonium ions, and ammonium ions formed from organic amines. Among the ammonium ions formed from organic amines, the organic amines are selected from ethanolamine, ethylenediamine and their byproducts, or tetraalkylammonium hydroxide; ethanolamines include monoethanolamine, diethanolamine, triethanolamine, N-alkyldiethanolamine, etc.; ethylenediamine and its byproducts include diethylenetriamine, triethylenetetramine, tetraethylenepentamine, etc.; tetraalkylammonium hydroxides include tetramethylammonium hydroxide, tetraethylammonium hydroxide, tetrabutylammonium hydroxide, etc.

[0064] The alkylbenzene sulfonate of the present invention has an alkyl carbon number of 6 to 24, selected from straight-chain alkyl and branched alkyl; it can be a saturated alkyl or an alkyl containing one or more unsaturated double bonds, and its content is not less than 15% based on alkylbenzene sulfonate.

[0065] The alkylbenzene sulfonate satisfies the following formula:

[0066]

[0067] R a That is, alkyl groups with 6 to 24 carbon atoms, where M+ is a cationic moiety. A suitable example is dodecylbenzene sulfonate.

[0068] The ethoxylated fatty alcohol sulfate of the present invention is a derivative of ethoxylated fatty alcohols and has the following general formula:

[0069]

[0070] R b It is an alkyl group having 6 to 24 carbon atoms; x is 0.5 to 15; wherein M + The moiety is cationic. R1 can be a straight-chain alkyl group or a branched alkyl group; it can be a saturated alkyl group or an alkyl group containing one or more unsaturated double bonds. R1 is preferred. b It is a straight-chain alkyl group having 8 to 18 carbon atoms. x represents the average degree of ethoxylation, which is 0.5 to 15, preferably 0.5 to 10, and more preferably 0.5 to 3. A suitable example is Texapon N70 from BASF.

[0071] The alkyl sulfates of the present invention may have straight-chain or branched alkyl segments, and may be saturated alkyl groups or alkyl groups containing one or more unsaturated double bonds. Alkyl sulfates with 6 to 24 carbon atoms are preferred, and alkyl sulfates with 8 to 18 carbon atoms are more preferred. A suitable example is dodecyl sulfate.

[0072] In some embodiments, an α-olefin sulfonate is contained, having the following general formula:

[0073]

[0074] a is between 0 and 2, R c It is an alkyl group having 6 to 24 carbon atoms, preferably R. c It is an alkyl group having 8 to 18 carbon atoms.

[0075] In some embodiments, the mixture of anionic surfactants contains a fatty acid salt, preferably a fatty acid salt with 8 to 18 carbon atoms. The alkyl segment of the fatty acid can be straight-chain or branched, and can be a saturated alkyl group or an alkyl group containing one or more unsaturated double bonds. The fatty acid salt can be a single component or a mixture of multiple fatty acids. Suitable examples are oleate and laurate. The fatty acid salt also contains an ethoxylated fatty alcohol ether carboxylate, wherein the fatty alcohol preferably has 8 to 18 carbon atoms and an average degree of ethoxylation preferably of 2.0 to 10.

[0076] The anionic surfactant mixture may also contain one or more mixtures of alkyl disulfonates or their derivatives, preferably alkyl diphenyl ether disulfonates, a suitable example being sodium dodecyl diphenyl ether disulfonate, a product of Dow Company's Dowfax series. It may also contain sulfosuccinates, preferably disodium salt of fatty alcohol polyoxyethylene ether sulfosuccinate monoester, wherein the fatty alcohol preferably has 8 to 18 carbon atoms and an average degree of ethoxylation preferably of 2.0.

[0077] Nonionic surfactants

[0078] The liquid detergent composition of the present invention contains 2% to 25% of a nonionic surfactant, wherein the surfactant is selected from one or more of fatty alcohol alkoxylates, alkyl polysaccharides, fatty acid ester alkoxylates, fatty acid alkylolamides, fatty acid methyl ester ethoxylates, and polyether surfactants.

[0079] The fatty alcohol alkoxylates have the following general formula:

[0080]

[0081] n is 6 to 24; x is 5 to 30; and y is 0 to 10. The fatty alcohol alkoxylates are products of ring-opening polymerization of fatty alcohols and epoxides under a basic catalyst, and are essentially mixtures. Fatty alcohols include straight-chain alcohols or branched isomeric alcohols. Alkoxy groups include ethoxy groups and propoxy groups. The fatty alcohols are preferably fatty alcohols with 8 to 18 carbon atoms, and preferred alcohols include, but are not limited to, one or mixtures of octanol, decanol, 2-ethylhexanol, 3-propylheptanol, lauryl alcohol, isotrimethylene glycol, tridecyl alcohol, tetradecyl alcohol, hexadecyl alcohol, palmitol, stearyl alcohol, isostearyl alcohol, oleyl alcohol, linoleyl alcohol, and linolenic acid alcohol. The average degree of ethoxylation x is preferably 2 to 12. Preferred examples include SHELL's NEODOL series of straight-chain fatty alcohol ethoxylated products, DOW's ECOSURF EH series of ethoxylated and propoxylated 2-ethylhexanol products, BASF's Lutensol XL series of ethoxylated and propoxylated 3-propylheptanol products, and BASF's Lutensol XP series of ethoxylated 3-propylheptanol products.

[0082] The alkyl glycoside has the following general formula:

[0083]

[0084] n is 6 to 24, and p is 1.1 to 3. Preferably, n is 8 to 16. Suitable alkyl glycosides include BASF's Glucopon series of alkyl glycosides.

[0085] The fatty acid ester alkoxylate is preferably an ethoxylated C8 to C18 fatty acid ester with an average degree of ethoxylation of 2 to 10. It may contain an ethoxylated sorbitol alkyl ester with 6 to 18 alkyl carbons and an average degree of ethoxylation of 4 to 20; a suitable example is the Tween series products from Corda.

[0086] The fatty acid alkylolamide has a fatty acid with 6 to 24 carbon atoms, and can be a straight-chain fatty acid or a branched fatty acid, and can be a saturated fatty acid or an unsaturated fatty acid; the number of alkyl alcohols is 0 to 2. Preferred fatty acid alkylolamides are monoethanolamides, diethanolamides, or isopropanolamides with 8 to 18 carbon atoms; a suitable example is coconut oil diethanolamide.

[0087] The fatty acid methyl ester ethoxylate has the following formula:

[0088]

[0089] n is 6 to 24; x is 2 to 20. Preferably, n is 8 to 18 and x is 0.5 to 30. Preferably, x is 4 to 10. A suitable example is LION's MEE product.

[0090] The polyether surfactant. A polyether surfactant is a polymer containing repeating ethylene oxide and / or propylene oxide units, a suitable example being the Pluronic series products from BASF.

[0091] Amphoteric surfactants

[0092] Furthermore, the liquid detergent composition of the present invention may also contain an amphoteric surfactant in a mass fraction of 0.01% to 15%. There is no distinction between the amphoteric surfactant and amphoteric surfactants, or between zwitterionic surfactants. The zwitterionic surfactant is selected from betaine-type surfactants, imidazoline-type surfactants, amino acid-type surfactants, and amine oxide-type surfactants; including, but not limited to, alkyl betaine, fatty amide betaine, fatty amide propyl betaine, fatty amide propyl hydroxypropyl sulfonated betaine, sodium alkyl acetate imidazoline, fatty acid imidazoline, sulfonic acid imidazoline, aminopropionic acid derivatives, glycine derivatives, alkyl dimethyl amine oxide, fatty amide propyl dimethyl amine oxide, etc. Suitable examples include dodecyl amine oxide, cocamidopropyl amine oxide, cocamidopropyl betaine, etc.

[0093] cationic surfactants

[0094] Furthermore, the liquid detergent composition of the present invention may also contain a cationic surfactant in a mass fraction of 0.01% to 15%. The cationic surfactant includes quaternary ammonium salt surfactants, heterocyclic surfactants, and polymeric cationic surfactants, including mono-long linear chain quaternary ammonium salts, bis-long linear chain quaternary ammonium salts, benzyl quaternary ammonium salts, hydroxyalkyl quaternary ammonium salts, fatty amide propyl hydroxyalkyl quaternary ammonium salts, and polyquaternary ammonium salts obtained by copolymerization of vinylpyrrolidone and unsaturated amides or unsaturated quaternary ammonium salts.

[0095] Additives

[0096] The liquid detergent composition of the present invention contains 0.1 to 10% of an adjuvant, said adjuvant being selected from one or more mixtures of acid-base regulators, enzyme preparations, preservatives, polymers, inorganic salts, viscosity modifiers, antibacterial agents, colorants, fragrances, and chelating agents.

[0097] acid-base regulators

[0098] The acid-base regulators of this invention include acidity regulators and alkalinity regulators. The acidity regulator is selected from organic acids, inorganic acids, and strong acid-weak base salts well-known in the daily chemical industry, preferably citric acid, succinic acid, and boric acid, and more preferably citric acid. The alkalinity regulator, also known as an alkaline agent, refers to inorganic bases and organic amines. The preferred inorganic base is a metal hydroxide such as sodium hydroxide. The organic amine is selected from ethanolamines including monoethanolamine, diethanolamine, triethanolamine, N-alkyldiethanolamine, etc.; ethylenediamine and its byproducts including diethylenetriamine, triethylenetetramine, tetraethylenepentamine, etc.; and tetraalkylammonium hydroxides including tetramethylammonium hydroxide, tetraethylammonium hydroxide, tetrabutylammonium hydroxide, etc.

[0099] enzyme preparations

[0100] The enzyme preparation described in this invention is one or a mixture of protease and amylase, and may also contain one or more of lipase, cellulase, mannanase, and pectinase. The enzyme preparation has a weight percentage of 0.01% to 5% of the detergent composition, or preferably 0.1% to 2%.

[0101] Antibacterial agents

[0102] The detergent composition of the present invention may further comprise an antibacterial agent. The antibacterial agent is selected from, but not limited to, hypochlorous acid and its salts, p-chloro-resorcinol, p-chloro-resorcinol, hydroxydichlorodiphenyl ether, hydroxytrichlorodiphenyl ether, triclocarban, o-phenylphenol, dodecyl dimethyl benzyl ammonium chloride, dodecyl trimethyl ammonium chloride, tetradecyl dimethyl benzyl ammonium chloride, tetradecyl trimethyl ammonium chloride, hexadecyl trimethyl ammonium chloride, octadecyl trimethyl ammonium chloride, didecyl dimethyl ammonium chloride, polyhexamethylene biguanide hydrochloride, 1-hexadecylpyridine chloride, zinc pyridinium thione, and pyridone ethanolamine salt.

[0103] polymer

[0104] The polymers described in this invention include, but are not limited to: salts of homopolymers of acrylic acid, salts of copolymers of acrylic acid; cellulose derivatives, such as carboxymethyl cellulose, ethyl hydroxyethyl cellulose, and methyl cellulose; homopolymers and copolymers of vinylpyrrolidone, such as copolymers of linear polyvinylpyrrolidone, N-vinylpyrrolidone, and vinyl acetate; and polyvinylimide derivatives, such as ethoxylated polyvinylimide, polyethylene terephthalate and its derivatives, and polyethylene glycol and its derivatives. These polymers impart beneficial effects to detergent compositions, such as resistance to redeposition of dirt, promotion of dirt dissociation from substrate surfaces, or improvement of the appearance of the detergent composition.

[0105] solvent

[0106] The term "solvent" in this invention refers to water and / or an organic solvent; the organic solvent is selected from polyols and / or polyol ethers, suitable examples being propylene glycol, glycerol, ethylene glycol, diethylene glycol, and sorbitol.

[0107] In addition to the above-mentioned components, the detergent compositions of the present invention may also contain various common and conventional additives such as cosolvents, solubilizers, structuring agents, foaming agents, defoaming agents, fabric softeners, bleaching systems, and anti-wrinkle agents. These additives and related methods of use are well known to those skilled in the art, and their specific types and dosages can be adjusted according to actual needs.

[0108] Moisture absorption performance test method

[0109] The moisture absorption properties described in this invention include the following aspects: (1) saturated water absorption rate; (2) water permeability time. The samples used for moisture absorption performance testing are cotton and polyester fabric samples. The cotton fabric sample is piqué fabric (weight 170 g / m²). 2 The polyester fabric sample is a pineapple weave fabric (weight 220g / m²). 2 The above fabric samples were uniformly cut into circles with a diameter of 8cm. They were washed and rinsed three times and dried according to the detergency test method in GB / T 13174-2021 Determination of detergency and recycle performance of detergents for clothing.

[0110] Saturated water absorption rate test method

[0111] The sample was conditioned to equilibration at a temperature of (20±1)℃ and a relative humidity of (65±2)%. The initial mass of the sample was measured. The sample was then placed in a container filled with deionized water. After absorbing water, the sample sank naturally. After 5 minutes, it was removed and hung vertically, flat and level. Water dripped naturally from the sample. When the time interval between two drips was greater than or equal to 30 seconds, the sample was considered to be in a saturated hygroscopic state. The sample was immediately removed and weighed. The saturated water absorption rate was calculated using the following formula.

[0112]

[0113] In the formula:

[0114] A – Saturated water absorption rate, %;

[0115] m0—The original mass of the sample before testing, in grams;

[0116] m — the mass of the sample in a saturated hygroscopic state, in grams.

[0117] The higher the saturated water absorption rate, the better the moisture absorption performance of the fabric sample. The evaluation level is based on Table 1.

[0118] Table 1 Evaluation Criteria for Saturated Water Absorption Rate

[0119]

[0120] Water permeability time test method

[0121] Under conditions of (20±1)℃ and (65±2)% relative humidity, place a 6cm diameter funnel in a 100mL conical flask, then lay the sample flat on top of the funnel. Measure 3ml of deionized water using a graduated cylinder and pour it into the center of the sample. Start timing until all the water has permeated the sample, and record the permeation time (s). The shorter the permeation time, the better the hygroscopicity of the fabric sample. The evaluation level is determined according to Table 2.

[0122] Table 2 Evaluation Level of Permeability Time

[0123]

[0124] Excellent moisture absorption performance

[0125] The liquid detergent composition of this invention can impart excellent moisture absorption properties to fabrics, meaning that the saturated water absorption rate and water permeability time of both cotton and polyester fabrics after washing are rated as "excellent". Specifically, according to the moisture absorption performance evaluation method, the saturated water absorption rate of cotton fabrics after washing is ≥200%, and the water permeability time is ≤5s; the saturated water absorption rate of polyester fabrics after washing is ≥400%, and the water permeability time is ≤5s.

[0126] Quick-drying performance test method

[0127] The quick-drying performance described in this invention includes the following aspects: (1) water stain diffusion; (2) evaporation rate. The test samples for quick-drying performance testing are cotton or polyester fabric samples. The cotton fabric sample is piqué fabric (weight 170 g / m²). 2 The polyester fabric sample is a pineapple weave fabric (weight 220g / m²). 2 All samples were uniformly cut into circles with a diameter of 8cm. They were washed, rinsed three times, and dried according to the detergency test method in GB / T 13174-2021 Determination of detergency and recycle performance of detergents for clothing.

[0128] Water stain diffusion test method

[0129] Under an environment of (20±1)℃ and (65±2)% relative humidity, use a pipette to take 0.5ml of deionized water and drop it into the center of the sample (try to drop it in a circular shape). Let it stand for 3 minutes, take a picture, and use ImageJ software to calculate the water stain diffusion area. In the water stain diffusion experiment, the larger the water stain diffusion area, the less water accumulates, the more it diffuses to the surroundings, the easier the moisture evaporates, and the better the quick-drying properties of the fabric. The evaluation level is as shown in Table 3.

[0130] Table 3 Evaluation Levels of Water Stain Diffusion

[0131]

[0132] Evaporation rate experimental method

[0133] The sample was conditioned to humidity equilibrium at (20±1)℃ and (65±2)% relative humidity. The original mass of the sample was measured, and then the sample was placed in a container filled with deionized water. After absorbing water, the sample sank naturally. After 5 minutes, it was removed and hung vertically flat. Water dripped naturally from the sample. When the time interval between two water drips was greater than or equal to 30 seconds, the sample was considered to be in a saturated hygroscopic state. The sample was immediately removed and hung vertically in a constant temperature and humidity chamber at 35±1℃ and 95±2% humidity. The mass was measured every hour to calculate the water absorption rate. After five consecutive weighings, a time-water absorption rate curve was plotted. A linear regression analysis was performed on the curve using Excel software to calculate the slope. The absolute value of the slope was taken as the evaporation rate (%) / h. A higher evaporation rate indicates better quick-drying properties of the fabric sample. The evaluation level was determined according to Table 4.

[0134] Table 4 Evaporation Rate Evaluation Level

[0135]

[0136] Excellent quick-drying performance

[0137] The liquid detergent composition of the present invention can impart excellent quick-drying properties to fabrics, that is, the water stain diffusion and evaporation rate of cotton and polyester fabrics after washing are rated as "excellent". Specifically, according to the quick-drying performance evaluation method, the water stain diffusion area of ​​cotton fabric after washing is ≥50% and the evaporation rate is ≥29% / h; the water stain diffusion area of ​​polyester fabric after washing is ≥50% and the evaporation rate is ≥60% / h.

[0138] Washing and stain removal performance test method

[0139] The detergency testing of the aged liquid detergent composition was conducted according to GB / T 13174-2021, "Determination of Detergency and Recycled Washing Performance of Detergents for Clothing". Three types of soiled fabrics—sebum, protein, and carbon black—were used, and their pre-wash whiteness (W1) was measured using a WSD-3U fluorescence whiteness meter from Beijing Kangguang Optical Instrument Co., Ltd. Washing water with a hardness of 250 ppm was prepared according to GB / T 13174-2021, with a calcium-to-magnesium ion molar ratio of 3:2.

[0140] The liquid detergent composition was prepared into a 0.06% solution using 250 ppm of washing water. A standard laundry detergent conforming to GB / T13174-2021 "Determination of detergency and recycle performance of detergents for clothing" was used as a reference, and a 0.2% solution was prepared using 250 ppm of washing water.

[0141] A single wash was performed using an RHLQ vertical stain remover from the China Daily Chemical Industry Research Institute. The wash time was 20 minutes, the wash temperature was 30℃, and the agitation speed was 120 rpm. The three types of soiled cloths were rinsed, dried, and their whiteness (W2) after washing was measured using a WSD-3U fluorescent whiteness meter. The whiteness difference (ΔW) was calculated as follows:

[0142] △W = W2 - W1.

[0143] W2: Whiteness of the soiled cloth after washing.

[0144] W1: Whiteness of the soiled cloth before washing.

[0145] The smaller the △W value, the smaller the difference in whiteness of the soiled cloth before and after washing, and the worse the washing performance of the detergent composition.

[0146] Using the control value △W as a benchmark, calculate the detergency ratio P of the detergent composition according to the following formula, and keep the result to two decimal places.

[0147] P = △W i / △W I ,

[0148] △W i Whiteness difference of the detergent composition

[0149] △W I : Whiteness difference compared to the control group.

[0150] Excellent washing and stain removal performance

[0151] The term "excellent washing and detergency performance" in this invention refers to a liquid detergent composition having a detergency ratio P of 1.10 or greater for all three types of soiled fabrics: sebum, protein, and carbon black, according to the test method in GB / T 13174-2021 "Determination of detergency and cyclic washing performance of detergents for clothing".

[0152] Test methods for appearance stability

[0153] The appearance of the liquid detergent composition after aging treatment was evaluated visually, using the liquid detergent composition before aging treatment as a control. Appearance stability was graded as "good," "fair," and "poor." The aging treatment described in this invention refers to placing the detergent composition in a sealed PE bottle and storing it for four weeks at 45°C and 70% to 80% relative humidity. The terms aging treatment, aging test, and accelerated aging treatment are not distinguished. Appearance stability was evaluated according to Table 5.

[0154] Table 5 Evaluation Levels of Appearance Stability

[0155] The sample's appearance and stability performance level are as follows: After aging treatment, the sample appears as a homogeneous system with essentially no change in color. After good aging treatment, the sample shows a slight change in color. After average aging treatment, the sample shows obvious oil droplets or layering. surface

[0156] Excellent appearance stability performance

[0157] The term "excellent washing and detergency performance" in this invention refers to the fact that the liquid detergent composition, after aging treatment, has a homogeneous appearance and its color remains essentially unchanged.

[0158] Preparation and usage instructions

[0159] The liquid detergent composition of the present invention is prepared using various methods well known to those skilled in the art, ensuring that the components constituting the liquid detergent composition are uniformly mixed. The composition can be formulated using conventional methods, and specific formulation parameters, such as formulation temperature, stirring time, and heating / cooling rates, should be selected based on the physicochemical properties and stability of the components.

[0160] The method of using the liquid detergent composition involved in this invention is well known to those skilled in the art. A more conventional method is to bring the detergent composition into contact with the item to be washed, either as a undiluted solution or diluted in water, and then wash it by wiping, mechanical stirring or other means, and finally rinse it off the surface of the item. The item to be washed is a fabric.

[0161] Example

[0162] Without further detailed explanation, it is believed that those skilled in the art can fully utilize the present invention based on the above description. The following embodiments are intended to further illustrate and demonstrate specific implementations within the scope of the present invention. Therefore, the embodiments should be understood as being used only to illustrate the present invention in more detail, and not to limit the scope of the present invention in any way.

[0163] In the following examples, unless otherwise specified, all contents are percentages by mass, and the contents of the listed ingredients are converted contents of active substances.

[0164] In some specific embodiments of the present invention, the following compounds may be used.

[0165] Alkylated polyoxypropylene-1, polyoxypropylene monobutyl ether, with a molecular weight of 1200, belongs to the category of fabric finishing agents, which meets the requirements of the technical solution of this invention.

[0166] Alkylated polyoxypropylene-2, polyoxypropylene monobutyl ether, with a molecular weight of 800, belongs to the category of fabric finishing agents, which meets the requirements of the technical solution of this invention.

[0167] Alkylated polyoxypropylene-3, polyoxypropylene monobutyl ether, with a molecular weight of 3000, belongs to the category of fabric finishing agents, which meets the requirements of the technical solution of this invention.

[0168] Alkylated polyoxypropylene-4, with a molecular weight of 650, belongs to the category of fabric finishing agents, which does not meet the requirements of the technical solution of this invention.

[0169] Alkylated polyoxypropylene-5, with a molecular weight of 4000, belongs to the category of fabric finishing agents, which does not meet the requirements of the technical solution of this invention.

[0170] Alkylated polyoxypropylene-6, a polyoxypropylene monomethyl ether, with a molecular weight of 1200, belongs to the category of fabric finishing agents and meets the requirements of the technical solution of this invention.

[0171] Alkylated polyoxypropylene-7, polyoxypropylene monohexyl ether, with a molecular weight of 1200, belongs to the category of fabric finishing agents, which meets the requirements of the technical solution of this invention.

[0172] Alkylated polyoxypropylene-8, polyoxypropylene dibutyl ether, with a molecular weight of 1200, belongs to the category of fabric finishing agents, which meets the requirements of the technical solution of this invention.

[0173] Polyoxypropylene, with a molecular weight of 1200, belongs to the category of fabric finishing agents, which does not meet the requirements of the technical solution of this invention.

[0174] Polyester polyether: Polyethylene terephthalate (PET) polyoxyethylene, trade name DM-3746, belongs to the category of fabric finishing agents, which does not meet the requirements of the technical solution of this invention;

[0175] Linear alkylbenzene sulfonic acid, abbreviated as LAH, belongs to the category of anionic surfactant precursors.

[0176] Linear alkylbenzene sulfonates, abbreviated as LAS, belong to the category of anionic surfactants.

[0177] Ethoxylated fatty alcohol sulfates, abbreviated as AES, belong to the category of anionic surfactants.

[0178] Dodecanoic acid belongs to the category of anionic surfactant precursors, fatty acids.

[0179] Tetradecanoic acid belongs to the category of anionic surfactant precursors, fatty acids.

[0180] Oleic acid belongs to the category of anionic surfactant precursors and fatty acids.

[0181] Fatty alcohol polyoxyethylene ether (9), abbreviated as AEO9. It belongs to the category of nonionic surfactants.

[0182] Sodium hydroxide belongs to the category of acid-base regulators.

[0183] Citric acid belongs to the category of acid-base regulators.

[0184] Sodium citrate, which is classified as a chelating agent.

[0185] Glycerin belongs to the category of organic solvents.

[0186] Propylene glycol belongs to the category of organic solvents.

[0187] Deionized water belongs to the solvent category.

[0188] Protease: It belongs to the category of enzyme preparations.

[0189] Sodium polyacrylate: It belongs to the category of polymers.

[0190] A mixture of methylisothiazolinone and chloromethylisothiazolinone: the category is preservative.

[0191] The following examples and comparative methods for preparing liquid detergent compositions

[0192] 1) First, add deionized water to the mixing pot;

[0193] 2) Heat to 50 to 60°C and under alkaline conditions, convert straight-chain alkylbenzene sulfonic acid and fatty acids into their corresponding salts, stirring until completely dissolved;

[0194] 3) Remove the heat source and wait for the temperature to drop below 50°C. Then, add other surfactants, fabric finishing agents, polymers, and chelating agents in sequence and stir until dissolved.

[0195] 4) Add the flavoring and disperse thoroughly, then add an acid-base adjuster to adjust the pH value;

[0196] 5) Add preservatives, disperse thoroughly, and discharge after passing the test.

[0197] The liquid detergent compositions of Examples 1 to 5 were prepared according to the above preparation method, and the specific composition is shown in Table 6.

[0198] Table 6 Composition of Examples 1 to 5

[0199]

[0200]

[0201] Note: In the mixture of sodium salts of dodecanoic acid, tetradecanoic acid, and oleic acid, the mass ratio of dodecanoic acid, tetradecanoic acid, and oleic acid is 1:1:1.

[0202] Liquid detergent compositions of Examples 6 to 8 and Comparative Examples 1 to 8 were prepared according to the above-described liquid detergent composition preparation method. The similarities and differences between the liquid detergent compositions of Examples 6 to 8 and Comparative Examples 1 to 8 and Example 2 are shown in Table 7.

[0203] Table 7. Similarities and differences between Examples 6 to 8 and Comparative Examples 1 to 8

[0204]

[0205] The moisture absorption properties of the liquid detergent compositions of Examples 1 to 8 and Comparative Examples 1 to 8 were tested as described above, and the results are shown in Table 8.

[0206] Table 8. Results of moisture absorption tests on the liquid detergent compositions of Examples 1 to 8 and Comparative Examples 1 to 8.

[0207]

[0208] As shown in Table 8, the liquid detergent compositions of Examples 1 to 8 all impart excellent moisture absorption properties to the fabrics. Specifically, the saturated water absorption rate of the cotton sample is greater than 200%, and the water permeation time is 0 seconds; the saturated water absorption rate of the polyester sample is greater than 400%, and the water permeation time is less than 5 seconds. That is, the saturated water absorption rate and water permeation time of the cotton and polyester fabrics after washing are rated as "excellent." This indicates that the technical solution of the present invention can effectively change the surface state of fabrics of different materials. The fabric finishing agent can be effectively deposited on the fabric surface during the washing process, thereby causing a significant change in the hydrophilic properties of the fabric surface. Especially for polyester fabrics, the improved moisture absorption performance can quickly wick away sweat, reduce sweat accumulation, keep the skin dry, avoid the sticky feeling of sweat, and also reduce the possibility of clothing odor, thereby improving consumer comfort.

[0209] The liquid detergent composition of Comparative Example 1 does not contain alkylated polyoxypropylene; the liquid detergent composition of Comparative Example 3 contains 0.1% alkylated polyoxypropylene-1, and the amount of fabric finishing agent used is lower than the lower limit required by the technical solution of this invention; the liquid detergent composition of Comparative Example 4 contains 2% alkylated polyoxypropylene-4, and its molecular weight is lower than the lower limit of the molecular weight of alkylated polyoxypropylene in the technical solution of this invention. That is, the liquid detergent compositions of Comparative Examples 1, 3, and 4 do not contain the fabric finishing agent required by the technical solution of this invention, and the saturated water absorption rate of the treated polyester fabric is less than 400%, and the water penetration time is greater than 20 seconds, thus failing to achieve the effect of the technical solution of this invention. Comparative Example 7 contains 2.0% of a commercially available polyester polyether fabric finishing agent and does not contain alkylated polyoxypropylene; the saturated water absorption rate of the treated polyester fabric is 447%, but the water penetration time is 15 seconds, also failing to achieve the effect of the technical solution of this invention.

[0210] The liquid detergent compositions of Comparative Examples 2, 5, 6, and 8 all showed excellent saturated water absorption and water permeability time ratings for both cotton and polyester fabrics, and their performance was comparable to that of the liquid detergent compositions of Examples 1-8.

[0211] Subsequently, the quick-drying performance of the liquid detergent compositions of Examples 1 to 8, Comparative Examples 2, 5, 6, and 8 was tested, and the results are shown in Table 9.

[0212] Table 9. Test results of quick-drying performance of liquid detergent compositions in Examples 1-8 and Comparative Examples 2, 5, 6, and 8.

[0213]

[0214]

[0215] As shown in Table 9, the liquid detergent compositions of Examples 1 to 8 all impart excellent quick-drying properties to fabrics. For example, the water stain diffusion of the polyester fabric sample in Example 1 is shown in Figure 1, the water stain diffusion of the polyester fabric sample in Example 2 is shown in Figure 2, and the water stain diffusion of the polyester fabric sample in Example 4 is shown in Figure 3. Specifically, the water stain diffusion area of ​​the cotton fabric sample is >50%, and the evaporation rate is >29% / h; the water stain diffusion area of ​​the polyester fabric sample is >50%, and the evaporation rate is >60% / h. That is, the water stain diffusion and evaporation rate of the cotton and polyester fabrics after washing are rated as "excellent." This indicates that the technical solution of the present invention can effectively change the surface state of fabrics of different materials. The fabric finishing agent is effectively deposited on the fabric surface during the washing process, thereby causing a significant change in the hydrophilic properties of the fabric surface. Especially for cotton fabrics, the improved quick-drying performance allows clothes to dry quickly, reducing drying time, which is particularly suitable for consumers in rainy areas or humid environments.

[0216] Comparative Example 2 did not use the fabric finishing agent of the present invention, but used polyoxypropylene with a molecular weight of 1200. Its liquid detergent composition had a low evaporation rate on cotton and polyester fabrics, and the evaluation level was average. The water stain diffusion of the polyester fabric sample of Comparative Example 2 is shown in Figure 4. Its liquid detergent composition had a poor evaluation level for water stain diffusion on polyester fabric, and could not achieve excellent quick-drying performance on the surface of the two fabrics.

[0217] The molecular weight of the alkylated polyoxypropylene used in Comparative Example 6 exceeded the range required by this invention. It is possible that the excessively large molecular weight is not conducive to improving quick-drying performance. Its liquid detergent composition has a low evaporation rate on cotton and polyester fabrics, and the evaluation level is general. The water stain diffusion of the polyester fabric sample in Comparative Example 6 is shown in Figure 5. The evaluation level of the water stain diffusion of its liquid detergent composition on polyester fabric is general.

[0218] Comparative Example 5 uses alkylated polypropylene oxide that meets the requirements of this invention, but the amount exceeds the upper limit of this invention. Its liquid detergent composition has excellent quick-drying properties for cotton and polyester according to the evaluation level of water stain diffusion and evaporation rate.

[0219] Comparative Example 8 uses alkylated polypropylene oxide that meets the requirements of this invention, with an amount of 2.0%, which is within the technical scope of this invention. Its liquid detergent composition has excellent quick-drying properties for cotton and polyester fabrics according to the evaluation levels of water stain diffusion and evaporation rate.

[0220] Based on the test results in Tables 8 and 9 above, the evaluation levels of the moisture absorption and quick-drying properties of the liquid detergent compositions of Examples 1 to 8 and Comparative Examples 1 to 8 on different fabrics are summarized in Table 10.

[0221] Table 10 Evaluation grades of the moisture absorption and quick-drying properties of the liquid detergent compositions in Examples 1 to 8 and Comparative Examples 1 to 8

[0222]

[0223]

[0224] As shown in Table 10, the liquid detergent compositions of Examples 1 to 8 can simultaneously achieve excellent moisture absorption and quick-drying properties on both cotton and polyester fabrics. This demonstrates that the technical solution of the present invention can significantly improve the moisture absorption and quick-drying properties of different fabrics, thereby providing consumers with a better wearing experience.

[0225] The liquid detergent compositions of Comparative Examples 1 to 4, and Comparative Examples 6 and 7 could not simultaneously achieve excellent moisture absorption and excellent quick-drying properties on different fabrics. The moisture absorption and quick-drying properties of Comparative Examples 5 and 8 on different fabrics were comparable to those of Examples 1-8.

[0226] Furthermore, the evaluation results of the liquid detergent compositions of Examples 1 to 8, Comparative Example 5, and Comparative Example 8 according to the aforementioned appearance stability evaluation method are shown in Table 11.

[0227] Table 11. Results of appearance stability tests on liquid detergent compositions of Examples 1 to 8, Comparative Example 5, and Comparative Example 8.

[0228]

[0229]

[0230] As shown in Table 11, the liquid detergent compositions prepared in Examples 1 to 8 were homogeneous after aging, with their colors remaining largely unchanged, and their evaluation level was good. The appearance of the liquid detergent composition sample from Example 2 after aging is shown in Figure 6.

[0231] The appearance of the liquid detergent composition sample prepared in Comparative Example 5 after aging is shown in Figures 7 and 8. Large oil droplets appeared, and the evaluation grade was poor. Comparative Example 5 contained 6% alkylated polyoxypropylene-1, which exceeded the upper limit of the dosage in the technical solution of this invention. This may be the reason for the appearance change caused by the precipitation of alkylated polyoxypropylene.

[0232] The appearance of the liquid detergent composition sample prepared in Comparative Example 8 after aging is shown in Figure 9. It is a homogeneous system with basically unchanged color, and the evaluation level is good.

[0233] Furthermore, the detergency performance of the liquid detergent compositions of Examples 1 to 8 and Comparative Example 8 was tested, and the results are shown in Table 12.

[0234] Table 12 Results of detergency test of liquid detergent compositions in Examples 1 to 8 and Comparative Example 8

[0235] Technical Solution | Sebum P1 Value | Protein P2 Value | Carbon Black P3 Value | Example 1 | 1.10 | 2.58 | 1.43 | Example 2 | 1.12 | 2.58 | 1.47 | Example 3 | 1.13 | 2.57 | 1.48 | Example 4 | 1.11 | 2.58 | 1.48 | Example 5 | 1.13 | 2.58 | 1.48 | Example 6 | 1.10 | 2.59 | 1.47 | Example 7 | 1.12 | 2.57 | 1.40 | Example 8 | 1.13 | 2.58 | 1.38 | Comparative Example 8 | 1.02 | 2.53 | 1.27 surface

[0236] As shown in Table 12, the liquid detergent compositions of Examples 1 to 8 all had a detergency ratio P of 1.10 or greater for the three types of soiled cloths containing sebum, protein, and carbon black, and were rated as "having excellent washing and detergency performance".

[0237] The surfactant content of Comparative Example 8 is 13%, which is lower than the range of ≥15% for the sum of anionic surfactants and nonionic surfactants in the technical solution of this invention. Its sebum removal ratio P is 1.02, which is less than 1.10, and it does not have excellent washing and cleaning performance.

[0238] In summary, the liquid detergent compositions of Examples 1 to 8 of the present invention can simultaneously impart excellent moisture absorption and quick-drying properties to cotton and polyester fabrics, and also possess excellent washing and stain removal efficiency and good appearance stability.

[0239] The above description is merely an example to further illustrate the technical content of the present invention, so as to facilitate the reader's understanding. However, it does not mean that the implementation of the present invention is limited to this. Any technical extension or re-creation made in accordance with the present invention is protected by the present invention.

Claims

1. A liquid detergent composition, characterized in that, It comprises the following components and mass fractions: 0.2% to 5% fabric finishing agent, 2% to 50% anionic surfactant, 2% to 25% nonionic surfactant, 0.1% to 10% auxiliaries, and the balance being solvent; the sum of the mass fractions of the anionic surfactant and the nonionic surfactant is ≥15%; the fabric finishing agent is alkylated polyoxypropylene with a weight-average molecular weight of 800 to 3000 and has the following general chemical formula: Where R1 is C a H 2a+1 In this context, a is a positive integer from 1 to 6; R2 is OH; n is a positive integer from 13 to 57; the anionic surfactant is selected from one or more mixtures of alkylbenzene sulfonates, C8 to C18 alkyl sulfates, C8 to C18 ethoxylated fatty alcohol sulfates, C8 to C18 fatty acid salts, and ethoxylated fatty alcohol ether carboxylates; the alkylbenzene sulfonate has 6 to 24 alkyl carbons; the nonionic surfactant is selected from one or more mixtures of fatty alcohol alkoxylates, alkyl polysaccharides, fatty acid ester alkoxylates, fatty acid alkylolamides, fatty acid methyl ester ethoxylates, and polyether surfactants; the auxiliary agent is selected from one or more of acid-base regulators, enzyme preparations, preservatives, polymers, inorganic salts, viscosity modifiers, antibacterial agents, colorants, fragrances, and chelating agents; the solvent is water and / or an organic solvent; the organic solvent is selected from polyols and / or polyol ethers.

2. The liquid detergent composition according to claim 1, characterized in that, The stain removal ratio P for three types of soiled cloths (sebum, protein, and carbon black) is ≥1.

10.

3. The liquid detergent composition according to claim 1, characterized in that, When placed in a sealed PE bottle and stored at 45℃ and 70% to 80% relative humidity for four weeks, the appearance remains a homogeneous system and the color remains essentially unchanged.

4. The liquid detergent composition according to claim 1, characterized in that, After washing cotton fabrics, the saturated water absorption rate of the cotton fabrics is ≥200%, the water permeation time is ≤5s, the water stain diffusion area is ≥50%, and the evaporation rate is ≥29% / h.

5. The liquid detergent composition according to claim 1, characterized in that, After washing polyester fabrics, the saturated water absorption rate of the polyester fabrics is ≥400%, the water permeation time is ≤5s, the water stain diffusion area is ≥50%, and the evaporation rate is ≥60% / h.

6. The application of a fabric finishing agent in a liquid detergent composition for improving the moisture absorption and quick-drying properties of fabrics, characterized in that, The fabric finishing agent is alkylated polyoxypropylene with a weight-average molecular weight of 800 to 3000 and has the following general chemical formula: Where R1 is C a H 2a+1 , where a is a positive integer from 1 to 6; R2 is OH; and n is a positive integer from 13 to 57.

7. The application according to claim 6, characterized in that, The fabric finishing agent has a mass content of 0.2% to 5% in the detergent composition.

8. The application according to claim 6, characterized in that, The fabric in question is a cotton-containing fabric or a polyester-containing fabric.

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