A softening laundry liquid having a softening effect

Abstract

The present application provides a softening laundry liquid with softening effect, comprising a softening additive and a dispersing agent HEX, the softening additive comprises a bis-quaternary ammonium salt modified polysiloxane (QSQ), and the mass of the softening additive is 0.5%-10% based on the mass of the laundry liquid. The softening laundry liquid with softening effect can make the laundry liquid have good compatibility and stability, and the clothes have better softness after washing, and meanwhile, the decontamination effect of the laundry liquid is not affected.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of laundry liquid, and relates to a softening laundry liquid with softening effect. BACKGROUND

[0002] The effective component of the laundry liquid is mainly a surfactant, and the structure of the surfactant comprises a hydrophilic end and a lipophilic end. The lipophilic end is combined with dirt, and then the dirt and fabric are separated through physical movement (such as hand rubbing and machine movement). At the same time, the surfactant reduces the surface tension of water, so that water can reach the surface of the fabric, and the effective component can play a role.

[0003] In daily life, we all find that clothes will become hard, feel poor, and even be damaged quickly if the clothes are washed a little more. This is mainly because the fabric is treated with a large amount of softener when it is manufactured, and the softener on the surface is gradually washed away in the washing process, so the feel becomes poor. After the softener is washed away, the friction between the fibers of the clothes becomes large, the fabric is easily damaged, the clothes become not wearable, are easily damaged, and cause great waste. Since the market of the clothes softener is not popular enough at present, it is necessary to add a small amount of softener to the laundry liquid to improve the feel of the clothes after washing.

[0004] Adding the softener to the laundry liquid needs to solve several technical problems:

[0005] (1) Compatibility: The softener itself is usually cationic, and needs to be compatible with the laundry liquid system mainly composed of anionic surfactants. Therefore, the compatibility problem of the cationic softener and the laundry liquid system mainly composed of anions needs to be solved.

[0006] (2) Adsorption: A part of the softener needs to be adsorbed on the surface of the fabric after washing to have the softening effect.

[0007] (3) Detergency: The softener adsorbed on the surface of the fabric cannot affect the detergency of the laundry liquid. SUMMARY

[0008] The present application aims to provide a softening laundry liquid with softening effect, which greatly improves the softening effect of the softening laundry liquid after washing, so that the clothes can be kept as new for a long time, have better softening effect, are more wearable, are not easily damaged, and reduce waste.

[0009] To achieve the purpose of the present application, the following technical solutions are adopted:

[0010] In a first aspect, the present application provides a softening laundry liquid with softening effect, comprising a softening additive, and a dispersing agent HEX, the softening additive comprising a bis-quaternary ammonium salt modified polysiloxane, the mass of the softening additive being 0.5%-10% based on the mass of the laundry liquid. In some embodiments, the mass of the softening additive can be 0.5%, 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 8.5%, 8.8%, 9%.

[0011] The mass of the softening additive is 0.5%-10% based on the mass of the softening laundry liquid. By adding the softening additive with a mass in the range of 0.5%-10%, the softening effect is good, and the stability is better. The possible reason is that the sodium fatty alcohol polyoxyethylene ether sulfate, alkyl polyglycoside, cocamidopropyl betaine, fatty alcohol polyoxyethylene ether, sodium fatty acid, disodium ethylenediaminetetraacetate, 2-methylisothiazol-3(2H)-one, essence fraction, sodium chloride, deionized water and the softening additive synergistically act, the softening additive plays a role in the above formula, thereby effectively improving the softening effect and stability.

[0012] Preferably, the bis-quaternary ammonium salt modified polysiloxane has a structural formula as shown in Chemical Formula (I):

[0013] ;

[0014] (Quaternary-N quaternary ammonium salt segment Silicone polysiloxane segment Quaternary-N quaternary ammonium salt segment)

[0015] Chemical Formula (I) bis-quaternary ammonium salt modified polysiloxane structural formula

[0016] wherein Q is a hydrophilic cationic quaternary ammonium salt segment (such as Chemical Formula (I)), which can be an alkyl imidazoline quaternary ammonium salt structure, or other hydrophilic cationic quaternary ammonium salt structure. R1 is selected from one or both of C8-C22 saturated or unsaturated aliphatic alkyl (such as oleic acid), or C8-C22 amide group containing saturated or unsaturated aliphatic alkyl (such as oleic acid amide); R2 is one or both of C2-C5 alkyl or C2-C5 polyether alkyl (such as -CH2-CH2-), and n is a polymerization degree of 10-5000.

[0017] Preferably, the mass of the softening additive is 1%-5% based on the mass of the softening laundry liquid. The softening additive is in a suitable mass range, has good detergency, and is compatible with the softening additive, synergistically acts with each other, so that the laundry liquid product is better.

[0018] Preferably, the mass of the softening additive is 2%-3% based on the mass of the softening laundry liquid.

[0019] Preferably, it further comprises sodium fatty alcohol ether polyoxyethylene sulfate, fatty alcohol ether polyoxyethylene and alkyl polyglycoside;

[0020] The mass of the sodium fatty alcohol ether polyoxyethylene sulfate is 10%-30% based on the mass of the softening laundry liquid,

[0021] The mass of the fatty alcohol ether polyoxyethylene is 3%-9% based on the mass of the softening laundry liquid,

[0022] The mass of the alkyl polyglycoside is 5%-15% based on the mass of the softening laundry liquid.

[0023] Preferably, it further comprises fatty acid methyl ester polyoxyethylene ether, coconut oil fatty acid diethanolamide, dispersant HEX, citric acid, essence;

[0024] The mass of the fatty acid methyl ester polyoxyethylene ether is 3%-9% based on the mass of the softening laundry liquid.

[0025] Preferably, the mass of the citric acid is 0.1%-0.3% based on the mass of the softening laundry liquid.

[0026] Preferably, the mass of the coconut oil fatty acid diethanolamide is 3%-9% based on the mass of the softening laundry liquid.

[0027] Preferably, the mass of the dispersant HEX is 0.5%-5% based on the mass of the softening laundry liquid.

[0028] Compared with the prior art, the present application has the following beneficial effects:

[0029] (1) The novel cationic double-quaternary ammonium salt modified polysiloxane softener QSQ provided by the present application greatly improves the softening effect after the softening laundry liquid is washed, so that the clothes can be kept as new for a long time, have better softening effect for a long time, are more durable, are not easy to be damaged, and waste is reduced.

[0030] (2) The dispersant HEX used in the laundry liquid formula provided by the present application makes the cationic and anionic systems have better compatibility and synergistic effect.

[0031] (3) The softening laundry liquid formula based on the novel cationic double-quaternary ammonium salt modified polysiloxane softener QSQ and the dispersant HEX provided by the present application can make the laundry liquid have good compatibility and stability, so that the clothes have better softening performance after being washed, and meanwhile the decontamination effect of the laundry liquid is not affected. DETAILED DESCRIPTION

[0032] The technical solutions of the present application are further illustrated by specific embodiments. Those skilled in the art should understand that the embodiments are only used to help understand the present application and should not be regarded as specific limitations on the present application.

[0033] Each component in each embodiment and comparative example is a conventional commercially available product.

[0034] Fatty alcohol polyoxyethylene ether sodium sulfate: fatty alcohol (C12-14) polyoxyethylene ether sodium sulfate (AES);

[0035] Alkyl glycoside: alkyl (C12-14) glycoside (APG);

[0036] Fatty alcohol polyoxyethylene ether: fatty alcohol (C12-16) polyoxyethylene (9) ether;

[0037] 2-methylisothiazol-3(2H)-one: 2-methylisothiazol-3(2H)-one (MIT).

[0038] In a first aspect, the present application provides a softening laundry liquid with softening effect, comprising a softening additive, the softening additive comprising a bis-quaternary ammonium salt modified polysiloxane QSQ, the mass of the softening additive being 0.5%-10% based on the mass of the softening laundry liquid.

[0039] The mass of the softening additive is 0.5%-10% based on the mass of the softening laundry liquid. After adding the softening additive with a mass in the range of 0.5%-10%, the softening effect is good, and the stability is better. The possible reason is that the fatty alcohol polyoxyethylene ether sodium sulfate, the alkyl glycoside, the cocamidopropyl betaine, the fatty alcohol polyoxyethylene ether, the sodium fatty acid, the disodium ethylenediaminetetraacetate, the 2-methylisothiazol-3(2H)-one, the essence fraction, the sodium chloride, the deionized water, and the softening additive synergistically act, and the softening additive plays a role in the above-mentioned formula, thereby effectively improving the softening effect and the stability.

[0040] Preferably, the structural formula of the bis-quaternary ammonium salt modified polysiloxane QSQ is shown in Chemical Formula (I):

[0041] Preferably, the mass of the softening additive is 1%-5% based on the mass of the softening laundry liquid. The softening additive is in a suitable mass range, has good soil removal performance, and is compatible with the softening additive, synergistically acts with each other, and makes the laundry liquid product better.

[0042] Preferably, the mass of the softening additive is 2%-3% based on the mass of the softening laundry liquid.

[0043] Preferably, the softening additive further comprises the fatty alcohol polyoxyethylene ether sodium sulfate, the fatty alcohol polyoxyethylene ether, and the alkyl glycoside.

[0044] The mass of the fatty alcohol polyoxyethylene ether sodium sulfate is 10%-30% based on the mass of the softening laundry liquid,

[0045] The mass of the fatty alcohol polyoxyethylene ether is 3%-9% based on the mass of the softening laundry liquid,

[0046] The mass of the alkyl glycoside is 5%-15% based on the mass of the softening laundry liquid.

[0047] Preferably, the softening laundry liquid further comprises: fatty acid methyl ester polyoxyethylene ether, coconut oil fatty acid diethanolamide, dispersant HEX, citric acid, essence;

[0048] The mass of the fatty acid methyl ester polyoxyethylene ether is 3%-9% based on the mass of the softening laundry liquid.

[0049] Preferably, the mass of the citric acid is 0.1%-0.3% based on the mass of the softening laundry liquid.

[0050] Preferably, the mass of the coconut oil fatty acid diethanolamide is 3%-9% based on the mass of the softening laundry liquid.

[0051] The softening additive comprises a bis-quaternary ammonium salt modified polysiloxane QSQ, the structural formula of which is shown in Chemical Formula (I).

[0052] ;

[0053] (Quaterium-N quaternary ammonium salt segment Silicone polysiloxane segment Quaterium-N quaternary ammonium salt segment)

[0054] Chemical Formula (I) Bis-quaternary ammonium salt modified polysiloxane structural formula

[0055] In the formula, Q is a hydrophilic cationic quaternary ammonium salt segment (such as Chemical Formula (I)), which can be an alkyl imidazoline quaternary ammonium salt structure, or other hydrophilic cationic quaternary ammonium salt structure. R1 is selected from one or both of C8-C22 saturated or unsaturated aliphatic alkyl (such as oleic acid), or C8-C22 amide group-containing saturated or unsaturated aliphatic alkyl (such as oleic acid amide); R2 is one or both of C2-C5 alkyl or C2-C5 polyether alkyl (such as -CH2-CH2-), and n is a polymerization degree of 10-5000.

[0056] The softening agents on the market at present mainly include several categories of products: one category is long carbon chain cationic quaternary ammonium salt softening agent. Ordinary cationic quaternary ammonium salt softening agent is difficult to be compatible with laundry liquid systems with more anionic surfactants due to its strong cationic property, the system is unstable, and whitening and precipitation easily occur. Therefore, it is mainly imidazoline quaternary ammonium salt (as shown in Chemical Formula (II), hereinafter referred to as "Q") with good hydrophilicity and weak cationic property.

[0057] ;

[0058] Chemical formula (two) imidazoline type cationic quaternary ammonium salt Chemical formula (three) amino modified silicone oil

[0059] But the better hydrophilic and weak cationic, will affect the cationic quaternary ammonium salt softener on the surface of the fabric adsorption. And generally quaternary ammonium salt product on the cotton product soft and fluffy effect is good, but in polyester or other chemical fiber on the slip effect is general. At the same time, the alkyl chain of imidazoline type quaternary ammonium salt is also the source of oil and fat, which affects the decontamination after adsorption, and imidazoline type quaternary ammonium salt also has the problem of yellowing of fabric, so it is only used in small amounts. Another kind is silicone softener, including amino modified silicone oil (such as chemical formula (three)) and amino polyether modified silicone oil (ternary copolymer silicone oil, such as chemical formula (four)). Among them, the amino modified silicone oil softener has poor hydrophilicity, although it can be compatible with the laundry liquid system after emulsification, but the stability is poor, easy to appear silicon spot, fabric yellowing and other problems, at the same time also affect the decontamination of laundry liquid, can not be used in laundry liquid product. Amino polyether modified silicone oil (ternary copolymer silicone oil) has good hydrophilicity and weak cationicity, which can be used in laundry liquid system. But due to the good hydrophilicity and weak cationicity, the adsorption on the surface of fabric during washing is less, the softening effect is not obvious, and the cost is high, which can not be widely applied.

[0060] ;

[0061] Chemical formula (four) amino polyether modified silicone oil (R4= polyether)

[0062] In view of the above problems, we developed a new type of softener, double quaternary ammonium salt modified polysiloxane QSQ, and developed a new type of softening laundry liquid based on the softener, so that the new type of softener can be compatible with anionic laundry liquid; after washing, it has good adsorption and obvious softening effect; at the same time, it does not affect the decontamination of laundry liquid.

[0063] The structure of double quaternary ammonium salt modified polysiloxane QSQ is shown in chemical formula (one).

[0064] ;

[0065] (Quaterium-N quaternary ammonium salt segment Silicone silicone segment Quaterium-N quaternary ammonium salt segment)

[0066] Chemical formula (one) structure of double quaternary ammonium salt modified polysiloxane

[0067] The structure of the new softener bis-quaternary ammonium salt modified polysiloxane QSQ is shown in Chemical Formula (I). The two ends of the chain segment are hydrophilic imidazoline cationic quaternary ammonium salt (Q), and the middle is a polydimethylsiloxane chain segment (S). Such QSQ structure has double cationic and hydrophilic imidazoline quaternary ammonium salt structure at both ends of the chain segment, which greatly increases the adsorption efficiency of the softener on the fabric surface, and has better softness and bulkiness; at the same time, due to the hydrophilicity and compatibility of the imidazoline group, it is relatively easy to disperse in the anionic laundry liquid system. On the other hand, the high molecular weight silicone chain segment gives the fabric, especially polyester, good slip and softness. At the same time, it has less effect on the detergency.

[0068] wherein Q is a hydrophilic cationic quaternary ammonium salt chain segment (such as Chemical Formula (I)), which can be an alkyl imidazoline quaternary ammonium salt structure, or other hydrophilic cationic quaternary ammonium salt structure. R1 is selected from one or both of C8-C22 saturated or unsaturated aliphatic alkyl and C8-C22 amide group containing saturated or unsaturated aliphatic alkyl; R2 is one or both of C2-C5 alkyl and C2-C5 polyether alkyl; n is 10-5000 polymerization degree;

[0069] The synthesis of the above-mentioned new softener bis-quaternary ammonium salt modified polysiloxane (QSQ) is by reacting C8-C22 fatty acid, fatty amine, polyether, etc. at high temperature to synthesize reactive C8-C22 aliphatic alkyl imidazoline alkoxy, and then condensing with reactive silicone intermediate with terminal hydroxyl (-OH) or other active groups at high temperature, vacuum and in the presence of catalyst.

[0070] Even though the above-mentioned new bis-cationic quaternary ammonium salt softener QSQ has good hydrophilicity, direct addition to the anionic laundry liquid system will also cause incompatibility between the anion and the cation, and the laundry liquid cannot be kept transparent and stable for a long time. Therefore, after research and exploration, we found a suitable dispersant HEX, which has a structure including one or both of cationic alkyl quaternary ammonium salt polyoxyethylene ether (structure of Chemical Formula (V)) and polyether silicone dispersant (structure of Chemical Formula (VI)), which can help the above-mentioned cationic quaternary ammonium salt softener QSQ to be stably dispersed in the commonly used anionic laundry liquid system on the market. At the same time, it is found in the experiment that the above-mentioned cationic surfactant has a synergistic effect on the adsorption of the cationic softener on the fabric surface.

[0071] ;

[0072] wherein R1 is C12-18 alkyl, such as lauryl or coco

[0073] Chemical formula (five) cationic alkyl quaternary ammonium salt polyoxyethylene ether Chemical formula (six) polyether organosilicon dispersant

[0074] In order to ensure the detergency of the laundry liquid, in addition to the general anionic surfactant and nonionic surfactant in the formula, a certain amount of fatty acid methyl ester polyoxyethylene ether (such as chemical formula (seven)) and alkyl glycoside surfactant (such as chemical formula (eight)) are also selected.

[0075] , ;

[0076] Chemical formula (seven) fatty acid methyl ester polyoxyethylene ether (R is C8-C18 fatty acid) Chemical formula (eight) alkyl glycoside (R is C8-C18

[0077] Natural fatty acid or synthetic alkane group)

[0078] Based on the above-mentioned new softener QSQ and cationic dispersant HEX, according to the research results, a new softening laundry liquid is developed, which contains 0.5%-10% of the double quaternary ammonium salt modified polysiloxane softener QSQ, 0.5-5% of the cationic surfactant HEX; contains but not limited to 10-60% of the anionic surfactant, such as fatty alcohol polyoxyethylene ether sodium sulfate (AES), sulfonic acid (AS), alpha-alkenyl sulfonate sodium (AOS) and the like; 1-30% of the nonionic surfactant, including one or more of fatty alcohol and fatty alcohol polyoxyethylene ether (AEO), fatty acid methyl ester polyoxyethylene ether (MEE), alkyl glycoside (APG) and the like; and appropriate amount of chelating agent (such as EDTA), consistency regulator, defoaming agent (modified organosilicon defoaming agent) and the like, and the developed softening laundry liquid is tested and characterized for stability, softening effect and detergency, which proves that the new softening laundry liquid has good stability, and has obvious softening effect better than the market products under the condition of maintaining the detergency of the national standard laundry liquid.

[0079] The synthesis of the softener double quaternary ammonium salt modified polysiloxane (QSQ) is to synthesize the reactive C8-C22 aliphatic alkoxyl quaternary ammonium salt by reacting C8-C22 fatty acid, fatty amine and polyether at high temperature, and then to synthesize by condensation reaction under the conditions of high temperature, vacuum and catalyst with the active organosilicon intermediate with hydroxyl (-OH) at the end.

[0080] The production process of the softening laundry detergent: water is added into a pot and heated to 80℃, then anionic surfactant, nonionic surfactant, cationic surfactant, new softener double-alkoxy polysiloxane (QSQ), and dispersant (HEX) are sequentially added into the pot, and after being fully stirred and uniformly mixed, the temperature is lowered to 40℃, then the remaining materials are added into the pot, and after being stirred, the product can be discharged.

[0081] Table 1: component allocation ratio of example 1 to example 7 and comparative example 1:

[0082] Sample Comparative Example 1 Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 Sodium fatty alcohol polyoxyethylene ether sulfate (AES 70%) 10.0% 10.0% 10.0% 10.0% 10.0% 10.0% 30.0% 30.0% Fatty alcohol polyoxyethylene ether (AEO-9) 3.0% 3.0% 5.0% 3.0% 3.0% 3.0% 9.0% 9.0% Alkyl polyglycoside (APG) 5.0% 5.0% 5.0% 5.0% 5.0% 5.0% 15.0% 15.0% Fatty acid methyl ester polyoxyethylene ether (MEE) 3.0% 3.0% 3.0% 3.0% 3.0% 3.0% 9.0% 9.0% Coconut oil fatty acid diethanolamide (CDEA) 5.0% 3.0% 3.0% 3.0% 3.0% 3.0% 9.0% 9.0% Quaternary ammonium salt modified polysiloxane (QSQ) 0.0% 1.0% 0.0% 1.0% 3.0% 5.0% 9.0% 9.0% Dispersant HEX 0.0% 0.0% 3.0% 3.0% 3.0% 3.0% 3.0% 6.0% Citric acid 0.1% 0.1% 0.1% 0.1% 0.1% 0.1% 0.3% 0.3% Fragrance 0.3% 0.3% 0.3% 0.3% 0.3% 0.3% 0.5% 0.5% Preservative 0.1% 0.1% 0.1% 0.1% 0.1% 0.1% 0.2% 0.2% Water Balance Balance Balance Balance Balance Balance Balance Balance

[0083] Softening effect: the general hand feeling evaluation method is used in the experiment, and the specific experimental process is as follows:

[0084] The pure cotton white towel without post-treatment (without softening treatment after pre-treatment) is used as the test fabric. The test samples are the laundry detergent of comparative example 1 and each example.

[0085] During the experiment, the towel used is weighed (the weight of each towel needs to be basically consistent). The towel is placed in a test washing machine under room temperature conditions, and after setting the standard washing program (equipment: Hisense full-automatic mini washing machine, washing time: standard washing for 36 minutes, temperature: room temperature), the test sample (0.2% concentration, 1 / 3 of examples 4-5) is added for washing, and then the towel is dried at 105℃ for testing. During the test, the towel is folded to the same thickness and the same direction, and the test sample is compared with the blank sample. Five people with certain experience and sensitive hand feeling are invited to evaluate, and the results are statistically compared by scoring method, with 5 points as the highest score and 1 point as the lowest score. The higher the score, the better the softness.

[0086] Experimental results: example 2 appears turbid, and examples 2-5 maintain clear and transparent under different temperature resistance and cold resistance conditions, which indicates that the new softener QSQ has poor compatibility in the laundry detergent mainly containing anionic surfactant; after adding the cationic dispersant HEX, the stability of the new softener QSQ in the laundry detergent system mainly containing anionic surfactant is obviously improved.

[0087] Table 2: stability comparison experiment of laundry detergent system of example 1 to example 7 and comparative example 1:

[0088] Balance Sample Comparative Example 1 Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 Ambient appearance Transparent Hazy and layered Transparent Transparent Transparent Transparent Translucent Transparent 5°C for three months Transparent Hazy and layered Transparent Transparent Transparent Transparent Translucent Transparent 45°C for three months Transparent Hazy and layered Transparent Transparent Transparent Transparent Translucent

[0089] Table 3: softness test results of laundry detergent of example 1 to example 7 and comparative example 1 are as follows:

[0090] Transparent Sample Comparative Example 1 Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 2.5 Hand feel comparison 2.8 3.5 4.0 4.2 3.7 3.9

[0091] Experimental results:

[0092] 1) From Example 2 and Comparative Example 1, when no softener QSQ is added, adding cationic dispersant HEX has limited effect on softening.

[0093] 2) From Example 3-Example 5 and Comparative Example 1, when softener QSQ is added, the softening effect is significantly improved compared to no addition, and as the amount increases, the softening effect also improves; and from Example 4, 6, 7 and Comparative Example 1, as the amount of cationic dispersant HEX increases, the softening effect also improves, showing that HEX has a synergistic effect on the softening effect of the new softener QSQ.

[0094] Table 4: The laundry detergent detergency value test results of Example 1-Example 7 and Comparative Example 1 are as follows:

[0095] No data Sample Comparative Example 1 Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 10.7 Carbon black stained cloth 11.5 11.3 11.0 10.8 11.1 11.2 No data 3.5 Protein stained cloth 3.8 3.7 3.5 3.4 3.6 3.7 No data 7.7 Sebum stained cloth No data 8.2 8.1 7.9 7.9 7.7 7.8

[0096] Through the above experimental analysis:

[0097] (1) The new cationic softener QSQ provided by the present application greatly improves the softening effect after softening laundry detergent, so that the clothes can be kept as new for a long time, have good softening effect for a long time, are more durable, are not easy to damage, and reduce waste.

[0098] (2) The dispersant HEX used in the laundry detergent formula provided by the present application improves the compatibility and synergistic effect of the cationic system.

[0099] (3) The softening laundry detergent formula based on the cationic softener QSQ and dispersant HEX provided by the present application can make the laundry detergent have good compatibility and stability, so that the clothes have better softening performance after washing, and does not affect the detergency of the laundry detergent.

[0100] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. It should be understood by those skilled in the art that any changes or replacements within the technical scope disclosed by the present application can be easily thought of by those skilled in the art, and all fall within the protection scope and disclosure scope of the present application.

Claims

1. A softening laundry liquid having a softening effect, characterized in that, The softener additive is a bis-quaternary ammonium salt modified polysiloxane QSQ, the structural formula of which is shown in Chemical Formula (I): ; Chemical Formula (I) Bis-quaternary ammonium salt modified polysiloxane structural formula Wherein, Q is an alkyl imidazoline quaternary ammonium salt structure; S is a polysiloxane segment; In the QSQ structure: R1 is selected from one or both of C8-C22 saturated or unsaturated aliphatic alkyl, or C8-C22 amide group containing saturated or unsaturated aliphatic alkyl; R2 is selected from one or both of C2-C5 alkyl or C2-C5 polyether alkyl, and n is 10-5000 polymerization degree; The dispersing agent HEX is a cationic alkyl quaternary ammonium salt polyoxyethylene ether; The mass of the softener additive is 2%-3% based on the mass of the softener liquid, and the mass of the dispersing agent HEX is 0.5-5%.

2. The softening laundry liquid with softening effect according to claim 1, characterized in that, Also including fatty alcohol polyoxyethylene ether sodium sulfate, fatty alcohol polyoxyethylene ether, and alkyl glycoside; The mass of the fatty alcohol polyoxyethylene ether sodium sulfate is 10%-30% based on the mass of the softener liquid, The mass of the fatty alcohol polyoxyethylene ether is 3%-9%, The mass of the alkyl glycoside is 5%-15%.

3. The softening laundry liquid with softening effect according to claim 1, characterized in that, Also including: Fatty acid methyl ester polyoxyethylene ether, coconut oil fatty acid diethanol amide, citric acid, essence; The mass of the fatty acid methyl ester polyoxyethylene ether is 3%-9% based on the mass of the softener liquid.

4. The softening laundry liquid with softening effect according to claim 3, characterized in that, The mass of the citric acid is 0.1%-0.3% based on the mass of the softener liquid.

5. The softening laundry liquid with softening effect according to claim 4, characterized in that, The mass of the coconut oil fatty acid diethanol amide is 3%-9% based on the mass of the softener liquid.

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