Composition with synergistic hair removal effect

Abstract

The invention provides a composition with a synergistic hair removal effect for washing and caring fabrics. The composition comprises 0.01-30 wt% of imidazoline quaternary ammonium salt, 0.01-30 wt% of a surfactant, 0.01-30 wt% of a surfactant, and the balance of water. 0.001 to 2% by weight of a cellulase; and a carrier acceptable in the field of fabric wash care. The invention also relates to an application of the composition in preparation of a fabric washing care product with a synergistic hair removal effect.

Description

Technical Field

[0001] The present invention relates to the field of daily chemical care, and particularly to a composition having a synergistic hair removal effect. Background Art

[0002] With the development of the times, keeping pets has become a new lifestyle, and small animals such as dogs and cats have gradually become members of the family. While the company of pets brings people pleasant emotions, the situation that pet hair is easily adhered to and difficult to remove on fabrics has also become a headache for pet-owning families. Conventional fabric detergents mainly highlight and sell products for cleaning, sterilizing, and protecting clothes. Such detergents are difficult to meet the needs of pet-owning family consumers for the performance of removing pet hair during clothing washing and care. At the same time, there are relatively few reports on fabric washing and care technologies for removing pet hair currently.

[0003] Chinese Patent CN 116970444 A discloses a liquid detergent for pet-owning families and its preparation method, which uses a composite bioactive enzyme formed by keratinase, cellulase, and alkaline protease to clean fabrics and remove hair remaining on the fabrics.

[0004] Patent Application WO 2024 / 182402 A1 discloses a technology for making fabrics less likely to adhere to hair and making it easier to remove the adhered hair. This technology is applied to fabric softeners, and the anti-adhesion composition includes silicon and / or a copolymer of acrylamide and diallyldimethylammonium chloride.

[0005] Chinese Patent CN 117143674 A discloses an antistatic laundry detergent composition, which includes an anionic surfactant, a nonionic surfactant, a modified polyquaternary ammonium salt, etc. Through the synergistic effect among various components, the laundry detergent composition has excellent detergency and antistatic hair removal effects.

[0006] Cellulase is a general term for a group of enzymes that catalyze the hydrolysis of cellulose to produce glucose. Cellulase can make the clothes feel soft, have good water absorption, be anti-pilling, and have bright colors after washing. At the same time, cellulase has a good effect on removing hair, balls, etc. generated after repeated wearing and washing of clothes.

[0007] Imidazoline quaternary ammonium salts are a type of cationic surfactant. When used as a detergent component, they can improve the softness and antistatic property of fabrics without affecting the washing performance.

[0008] So far, there has been no relevant report indicating that the compound use of imidazoline quaternary ammonium salt cationic surfactant and cellulase has a synergistic hair removal effect on the hair adhered to fabrics.

[0009] Therefore, the present invention innovatively combines an imidazoline quaternary ammonium salt cationic surfactant with cellulase to achieve a synergistic effect in removing pet hair from fabrics. Summary of the Invention

[0010] On the one hand, the present invention provides a composition for fabric washing and care with a synergistic hair removal effect, which comprises:

[0011] 0.01 - 30% by weight of an imidazoline quaternary ammonium salt;

[0012] 0.001 - 2% by weight of cellulase; and

[0013] a carrier acceptable in the field of fabric washing and care.

[0014] In a preferred embodiment, the composition of the present invention comprises 0.1 - 10% by weight of an imidazoline quaternary ammonium salt, preferably 0.1 - 5% by weight of an imidazoline quaternary ammonium salt.

[0015] In a preferred embodiment, the composition of the present invention comprises 0.01 - 1% by weight of cellulase, preferably 0.01 - 0.4% by weight of cellulase.

[0016] In a preferred embodiment, the weight ratio of cellulase to imidazoline quaternary ammonium salt is 1:5 to 1:30, preferably a weight ratio of 1:10 to 1:20.

[0017] In a preferred embodiment, the carrier acceptable in the field of fabric washing and care is water. In a preferred embodiment, the carrier acceptable in the field of fabric washing and care comprises dodecylbenzenesulfonic acid, polyoxyethylene (9) fatty alcohol ether, isomeric decanol polyoxyethylene ether, coconut fatty acid, glycerol, propylene glycol, monoethanolamine, triethanolamine, ethanol, sodium lauryl polyether sulfate, α-olefin sulfonate, fatty acid methyl ester polyoxyethylene ether, isomeric alcohol ether, potassium cocoyl glycinate, sodium lauroyl glutamate, alkyl glycoside, cocamidopropyl hydroxysulfobetaine, lauramidopropyl betaine, bis-palmityl carboxyethyl hydroxyethyl methyl ammonium sulfate or a combination thereof.

[0018] On the other hand, the present invention also relates to the use of the composition in the preparation of a fabric washing and care product with a synergistic hair removal effect. Brief Description of the Drawings

[0019] Figure 1 Shows a comparison chart of the relative hair removal improvement rates of Comparative Example 2, Comparative Example 6 and Example 4.

[0020] Figure 2 Shows a photo of cat hair on the fabric piece (A) before washing.

[0021] Figure 3Shows the photos of cat hair on the washed fabric pieces. (B1) Front side of the washed fabric piece of Comparative Example 2, (B2) Back side of the washed fabric piece of Comparative Example 2, (C1) Front side of the washed fabric piece of Comparative Example 6, (C2) Back side of the washed fabric piece of Comparative Example 6, (D1) Front side of the washed fabric piece of Example 4, (D2) Back side of the washed fabric piece of Example 4. Detailed Description

[0022] The present invention relates to a composition having a synergistic hair removal effect, which composition comprises an imidazoline quaternary ammonium salt cationic surfactant and cellulase, playing a synergistic effect to improve the effect of removing pet hair adhered to fabrics.

[0023] The present invention unexpectedly discovers that by combining an imidazoline quaternary ammonium salt cationic surfactant and cellulase (hair removal combination factor), a synergistic effect can be achieved, and various hairs adhered to fabrics can be effectively removed.

[0024] For the purpose of providing a more concise description, some quantitative expressions given herein are not modified by the term "about". It should be understood that whether or not the term "about" is explicitly used, each quantity given herein is intended to refer to the actual given value, and also intended to refer to the approximate value of these given values reasonably inferred by those of ordinary skill in the art, including the approximate values of these given values caused by experimental and / or measurement conditions.

[0025] For the purpose of providing a more concise description, some quantitative expressions herein are described as a range from about X amount to about Y amount. It should be understood that when a range is recited, the range is not limited to the recited upper and lower limits, but should include the entire range from about X amount to about Y amount or any amount therebetween.

[0026] Imidazoline quaternary ammonium salt

[0027] Imidazoline quaternary ammonium salts are a class of cationic surfactants. When used as a detergent component, they can improve the softness and antistatic property of fabrics without affecting the washing performance.

[0028] The composition of the present invention uses an imidazoline quaternary ammonium salt with the trade name LD purchased from EVONIK.

[0029] In some embodiments, the composition of the present invention comprises 0.01 - 30% by weight of imidazoline quaternary ammonium salt.

[0030] In some embodiments, the composition of the present invention comprises 0.1 - 30% by weight of imidazoline quaternary ammonium salts. In preferred embodiments, the composition of the present invention comprises 0.1 - 20% by weight, 0.1 - 10% by weight, 0.1 - 5% by weight, 0.2 - 30% by weight, 0.2 - 20% by weight, 0.2 - 10% by weight, 1 - 30% by weight, 1 - 20% by weight, 1 - 10% by weight, 1 - 5% by weight, 1 - 4% by weight, or 2 - 4% by weight of imidazoline quaternary ammonium salts.

[0031] Cellulase

[0032] Cellulase is a general term for a group of enzymes that catalyze the hydrolysis of cellulose to produce glucose. Cellulase can make the clothes feel soft, have good water absorption, anti-pilling, and bright color after washing. At the same time, cellulase has a good effect on removing the hair, balls, etc. generated after repeated wearing and washing of clothes.

[0033] The composition of the present invention uses cellulase with the trade name FCL 275 purchased from AB Enzymes GmbH.

[0034] In some embodiments, the composition of the present invention comprises 0.001 - 2% by weight of cellulase.

[0035] In some embodiments, the composition of the present invention comprises 0.01 - 2% by weight of cellulase. In preferred embodiments, the composition of the present invention comprises 0.01 - 2% by weight, 0.01 - 1% by weight, 0.01 - 0.5% by weight, 0.01 - 0.4% by weight, 0.1 - 0.4% by weight, 0.1 - 0.2% by weight, or 0.2 - 0.4% by weight of cellulase.

[0036] Fabric washing and care products

[0037] The present invention provides a composition for fabric washing and care with a synergistic hair removal effect, which comprises:

[0038] 0.01 - 30% by weight of imidazoline quaternary ammonium salts;

[0039] 0.001 - 2% by weight of cellulase; and

[0040] A carrier acceptable in the field of fabric washing and care.

[0041] In some embodiments, the weight ratio of cellulase to imidazoline quaternary ammonium salts in the composition of the present invention is 1:5 to 1:40, preferably 1:5 to 1:30, 1:5 to 1:20, 1:10 to 1:30, or 1:10 to 1:20.

[0042] In some embodiments, an acceptable carrier in the field of fabric washing and care is water.

[0043] In some embodiments, an acceptable carrier in the field of fabric washing and care comprises dodecylbenzenesulfonic acid, polyoxyethylene (9) fatty alcohol ether, isomeric decanol polyoxyethylene ether, coconut fatty acid, glycerol, propylene glycol, monoethanolamine, triethanolamine, ethanol, sodium lauryl polyether sulfate, α-olefin sulfonate, fatty acid methyl ester polyoxyethylene ether, isomeric alcohol ether, potassium cocoyl glycinate, sodium lauroyl glutamate, alkyl glycoside, coconut amide propyl hydroxysulfobetaine, lauramide propyl betaine, bis-palmityl carboxyethyl hydroxyethyl methyl ammonium methyl sulfate or a combination thereof.

[0044] The dodecylbenzenesulfonic acid used in the present invention is the dodecylbenzenesulfonic acid purchased from Nanjing Jiahe Daily Chemical Co., Ltd. The fabric washing and care product may comprise 10-30% by weight, preferably 21% by weight of dodecylbenzenesulfonic acid.

[0045] The polyoxyethylene (9) fatty alcohol ether used in the present invention is the polyoxyethylene (9) fatty alcohol ether with the trade name Lutensol A 9N purchased from Yangzi Petrochemical-BASF Co., Ltd. The fabric washing and care product may comprise 10-30% by weight, preferably 20% by weight of polyoxyethylene (9) fatty alcohol ether.

[0046] The isomeric decanol polyoxyethylene ether used in the present invention is the isomeric decanol polyoxyethylene ether with the trade name Lutensol XP 80 purchased from BASF (China) Co., Ltd. The fabric washing and care product may comprise 10-40% by weight, preferably 15% by weight of isomeric decanol polyoxyethylene ether.

[0047] The coconut fatty acid used in the present invention is the coconut fatty acid with the trade name distilled coconut oil fatty acid purchased from Wilmar Oils & Fats Technology (Lianyungang) Co., Ltd. The fabric washing and care product may comprise 1-10% by weight, preferably 4% by weight of coconut fatty acid.

[0048] The fabric washing and care product may comprise 1-10% by weight, preferably 7% by weight of glycerol.

[0049] The fabric washing and care product may comprise 10-20% by weight, preferably 15% by weight of propylene glycol.

[0050] The fabric washing and care product may comprise monoethanolamine such that the pH (25°C, 1% aqueous solution) of the fabric washing and care product is 5-10, preferably the pH is 7-9. For example, the pH of the fabric washing and care product of the present invention is 7-9, preferably 7-8.

[0051] In some embodiments, the technical solution of the present invention comprises the following steps: first, stir the cellulase and deionized water evenly, and then add the imidazoline quaternary ammonium salt and stir until completely uniform.

[0052] Compared with the prior art, the technical solution of the present invention provides a composition (depilatory combination factor) of an imidazoline quaternary ammonium salt cationic surfactant and cellulase, which can play a synergistic effect and improve the effect of removing pet hair adhered to fabrics.

[0053] The fabric washing and care product may further include one or more optional components, which include, but are not exclusively, fillers, chelating agents, preservatives, anti-redeposition agents, fluorescent whitening agents, fabric softeners, antibacterial agents, etc.

[0054] The fabric washing and care product can be products such as depilatory laundry detergent, concentrated depilatory laundry detergent, depilatory laundry beads, depilatory fabric softener, concentrated depilatory fabric softener, etc.

[0055] Examples

[0056] The present invention will be further described below in conjunction with specific examples. It is necessary to point out here that the examples are only used to further illustrate the present invention and cannot be construed as limiting the protection scope of the present invention. Those skilled in the art can make some non-essential improvements and adjustments based on the above content of the present invention. The test methods without specific conditions in the following examples are usually carried out under conventional conditions or according to the conditions recommended by the manufacturer. Unless otherwise specified, all percentages and parts are by weight.

[0057] Test Example 1: Depilatory performance test with water as the matrix

[0058] 1. Experimental raw materials

[0059] Imidazoline quaternary ammonium salt: LD, from EVONIK;

[0060] Cellulase: FCL 275, from AB Enzymes GmbH.

[0061] 2. Test method

[0062] According to the following test method, the hair removal effect of the composition of the imidazoline quaternary ammonium salt and cellulase or the comparative example was tested and evaluated.

[0063] The test pet hair was white Ragdoll cat hair, the test fabric was a black pure cotton cloth piece cut into 55 cm * 55 cm, an electronic precision balance (purchased from Mettler-Toledo Instruments (Shanghai) Co., Ltd.), and a Haier EB100B20Mate1 pulsator fully automatic washing machine (rated washing capacity: 10.0 kg; rated dehydration capacity: 10.0 kg; rated washing input power: 440 W; rated dehydration input power: 320 W).

[0064] The specific operation steps are as follows:

[0065] (1) Accurately weigh 5 mg of cat hair into a beaker, and then use tweezers to evenly adhere the cat hair to a flat black pure cotton cloth piece.

[0066] (2) Machine wash mode: Select the "Common" washing mode, set the water level to "3" (about 30 L), rinse 2 times, and the total washing time is 44 min.

[0067] (3) Addition amount of the washing test sample: 30 g of the sample in the example / control example.

[0068] (4) Post-washing treatment of the blank control group: No washing test sample is added to the blank control group. After the washing is completed, take out the black pure cotton cloth piece, lay it flat on a clean table, count the number of remaining cat hairs after washing, in units of roots, and record the data as the number of remaining cat hairs in the blank control group.

[0069] (4) Post-washing treatment of the experimental group: The washing test sample is added to the experimental group. After the washing is completed, take out the black pure cotton cloth piece, lay it flat on a clean table, count the number of remaining cat hairs after washing, in units of roots, and record the data as the number of remaining cat hairs in the experimental group.

[0070] (5) Calculation formula for the relative hair removal improvement rate of cat hair:

[0071]

[0072] 3. Implementation plan of the example:

[0073] Table 1 is a summary table of the implementation plans of Examples 1-9. According to the combination plans of Examples 1-9, the washing test samples are respectively configured. The configuration process steps are to first stir the cellulase and deionized water evenly, then add the imidazoline quaternary ammonium salt, and stir until completely uniform for standby.

[0074] Table 1

[0075]

[0076] 4. Implementation plan of the control example

[0077] Table 2 is a summary table of the implementation plans of Control Examples 1-3.

[0078] Configuration of Control Examples 1-3: Weigh the corresponding amount of cellulase and deionized water according to the corresponding implementation plans in Table 2, stir evenly, and set aside for standby.

[0079] Table 2

[0080]

[0081] Table 3 is a summary table of the implementation schemes of Comparative Example 4 - Comparative Example 9.

[0082] Configurations of Comparative Example 4 - Comparative Example 9: According to the corresponding implementation schemes in Table 3, weigh the corresponding amounts of imidazoline quaternary ammonium salts and deionized water, stir evenly, and set aside.

[0083] Table 3

[0084]

[0085]

[0086] 5. Test results of hair removal performance with water as the matrix

[0087] Table 4 and Table 5 are respectively the performance test results of the removal effects of the white Ragdoll cat hair attached to the black pure cotton cloth pieces in Examples 1 - 9 and Comparative Examples 1 - 9. The results are expressed as the hair removal improvement rate relative to the blank control group.

[0088] Table 4: Test results of relative hair removal improvement rate of Examples 1 - 9

[0089] Serial number Number of remaining cat hairs after washing (roots) Relative hair removal improvement rate (%) Blank control group 208 / Example 1 164 21 Example 2 149 28 Example 3 159 24 Example 4 119 43 Example 5 118 43 Example 6 110 47 Example 7 121 42 Example 8 114 45 Example 9 113 46

[0090] Table 5: Test results of relative hair removal improvement rate of Comparative Examples 1 - 9

[0091] Serial number Number of remaining cat hairs after washing (roots) Relative hair removal improvement rate (%) Blank control group 208 / Comparative example 1 196 6 Comparative example 2 161 23 Comparative example 3 137 34 Comparative example 4 186 11 Comparative example 5 173 17 Comparative example 6 165 21 Comparative example 7 158 24 Comparative example 8 124 40 Comparative example 9 122 41

[0092] Judging from the relative hair removal improvement rates of Comparative Examples 1 - 3, in the test results of the samples containing only cellulase, when the addition amount of cellulase is 0.1%, the removal rate of the test samples for the test cat hair does not increase significantly. With the increase of the addition amount of cellulase, the removal rate of the test samples for the test cat hair has a certain increase, and the relative hair removal improvement rate increases with the increase of the addition amount of cellulase, showing a certain dose - effect relationship. Considering the formulation cost in practical applications, an appropriate addition amount of cellulase is more reasonable.

[0093] Table 5 presents the test results of the test samples containing only azoline quaternary ammonium salts. Analyzing the relative hair removal improvement rate results of Comparative Examples 4 - 9, when the addition amount of imidazoline quaternary ammonium salt is 0.25%, the relative hair removal improvement rate of the test sample for the test cat hair is 11%. With the increase of the addition amount of imidazoline quaternary ammonium salt, the relative hair removal improvement rate of the test sample also shows a gradually increasing trend. At the same time, when the addition amount of azoline quaternary ammonium salt is 6%, its relative hair removal improvement rate reaches 40%. When the dosage is continued to be increased to 8%, the relative hair removal improvement rate does not increase significantly.

[0094] However, after combining cellulase with quaternary ammonium salts of oxazoline, compared with Comparative Example 4, a small amount of cellulase was added in Example 1, which could improve the hair removal rate of the composition sample, and the relative hair removal improvement rate increased from 11% to 21%. In Example 2, when the addition amounts of cellulase and quaternary ammonium salts of oxazoline were increased in the same proportion, it was found that the relative hair removal improvement rate increased from 21% to 28%. In Example 4, when the addition amounts of cellulase and quaternary ammonium salts of oxazoline were continuously increased in the same proportion, Figure 1 The columnar test results shown in Figure 1 indicate that the relative hair removal improvement rate of the sample under this combination has been further improved, and the result is 43%, which is much higher than that of Comparative Example 2 and Comparative Example 6. In addition, when the addition amounts of cellulase and quaternary ammonium salts of oxazoline were continuously increased in the same proportion, in Example 9, when the addition amounts were 0.4% and 4% respectively, the result of the relative hair removal improvement rate was 46%, showing a slight improvement compared with Example 4. In the application of formula development, quaternary ammonium salts of imidazoline can not only help improve the effect of washing off hair, but also help improve the softness of the fabric after washing, and are often used as detergent components for high-end fabrics. Therefore, the experimental results remind that in product development, reasonable combinations can be made according to the actual product requirements to meet the functional requirements and market positioning of different products and further improve the product value.

[0095] Comparing Comparative Example 3, Comparative Example 6 with Example 8, it was found that in this combination, the composition also showed the effect of synergistically improving the hair removal rate, and the relative hair removal improvement could reach 45%.

[0096] Comparing Example 5 with Comparative Example 2 and Comparative Example 7, it can be found that in this combination, the combination of cellulase and quaternary ammonium salts of imidazoline also has the effect of synergistically improving the hair removal rate. Then comparing Example 6 with Comparative Example 2 and Comparative Example 8, the hair removal rate of the composition also has a certain improvement.

[0097] In addition, comparing Example 7 with Comparative Example 9, it was also found that when the addition amount of quaternary ammonium salts of imidazoline in the composition was increased to 8%, the composition did not show an obvious effect of improving the hair removal rate. At the same time, comparing Example 3 with Comparative Example 7, it was found that the combination of Example 3 did not help improve the relative hair removal rate significantly. Therefore, when the ratio of cellulase to quaternary ammonium salts of imidazoline is 1:40, it does not show an obvious effect of improving the hair removal rate.

[0098] In summary, the present invention found that by combining and compounding cellulase with quaternary ammonium salts of imidazoline, at a certain ratio, this hair removal combination factor can play a synergistic effect in improving the removal of pet hair attached to the fabric.

[0099] Test Example 2: Hair removal performance test based on fabric detergent

[0100] 1. Experimental raw materials

[0101] Dodecylbenzenesulfonic acid: from Nanjing Jiahe Daily Chemical Co., Ltd.;

[0102] Polyoxyethylene (9) fatty alcohol ether: Lutensol A 9N, from Yangzi Petrochemical - BASF Co., Ltd.;

[0103] Isomeric decanol polyoxyethylene ether: Lutensol XP 80, from BASF (China) Co., Ltd.;

[0104] Coconut fatty acid: Distilled coconut oil fatty acid, from Wilmar Oils & Fats Technology (Lianyungang) Co., Ltd.;

[0105] Glycerol: from Wilmar Oils & Fats Technology (Lianyungang) Co., Ltd.;

[0106] Propylene glycol: Dow Chemical (Shanghai) Co., Ltd.;

[0107] Monoethanolamine: Dow Chemical (Shanghai) Co., Ltd.

[0108] 2. Test method

[0109] According to the following test method, the hair removal effect of the fabric detergent in the examples was tested and evaluated.

[0110] The test pet hair was white Ragdoll cat hair, the test fabric was a black pure cotton cloth piece cut into 55 cm * 55 cm, an electronic precision balance (purchased from Mettler - Toledo Instruments (Shanghai) Co., Ltd.), and a Haier EB100B20Mate1 pulsator fully automatic washing machine (rated washing capacity: 10.0 kg; rated dehydration capacity: 10.0 kg; rated washing input power: 440 W; rated dehydration input power: 320 W).

[0111] The specific operation steps are as follows:

[0112] (1) Accurately weigh 5 mg of cat hair into a beaker, and then use tweezers to evenly adhere the cat hair to the flat black pure cotton cloth piece.

[0113] (2) Washing method: Select the "Normal" washing mode, the water level is selected at the "3" gear (about 30 L), rinse 2 times, and the total washing time: 44 min.

[0114] (3) Detergent dosage: 10 g.

[0115] (4) Post - treatment of the blank control group after washing: The blank control group adds the detergent blank base (marked as blank base) to the test sample. After the washing is completed, take out the black pure cotton cloth piece, lay it flat on a clean table, count and statistically analyze the number of remaining cat hairs after washing, in units of roots, and record the data as the number of remaining cat hairs in the blank base group.

[0116] (4) Post - treatment after washing for the experimental group: In the experimental group, a detergent was added to the test sample. After the washing was completed, the black pure - cotton cloth pieces were taken out and laid flat on a clean table. The number of remaining cat hairs after washing was counted in terms of roots, and the data recorded was the number of remaining cat hairs in the experimental group.

[0117] (5) Calculation formula for the relative hair - removal improvement rate of cat hairs:

[0118]

[0119] 3. Implementation schemes of the examples and comparative examples

[0120] Table 6 is a summary table of the implementation schemes of Comparative Examples 10 - 15, where Comparative Example 1 is the blank base of the fabric detergent. According to the schemes of Comparative Examples 10 - 15, fabric detergent test samples were respectively prepared. The configuration process steps were to uniformly stir glycerol and propylene glycol and add them to dodecylbenzenesulfonic acid and coconut oil acid (pre - melted at 40°C), then add monoethanolamine. After stirring for 20 min, polyoxyethylene (9) fatty alcohol ether, isomeric decanol polyoxyethylene ether, and deionized water were added in sequence, stirred for 15 min, and finally the formulated amount of cellulase or imidazoline - type quaternary ammonium salt was added respectively and stirred for 15 min until completely uniform.

[0121] Table 6

[0122]

[0123]

[0124] Table 7 is a summary table of the implementation schemes of Examples 10 - 12. According to the schemes in the table, fabric detergent test samples were respectively prepared. The configuration process steps were to uniformly stir glycerol and propylene glycol and add them to dodecylbenzenesulfonic acid and coconut oil acid (pre - melted at 40°C), then add monoethanolamine. After stirring for 20 min, polyoxyethylene (9) fatty alcohol ether, isomeric decanol polyoxyethylene ether, and deionized water were added in sequence, stirred for 15 min, and finally the formulated amount of cellulase and imidazoline - type quaternary ammonium salt were added in sequence and stirred for 15 min until completely uniform.

[0125] Table 7

[0126]

[0127] Table 8 lists the test results of the relative hair - removal improvement rates of Comparative Examples 10 - 15 and Examples 10 - 12.

[0128] Comparing with the blank base of the fabric detergent in Comparative Example 10, the samples with added cellulase and imidazoline quaternary ammonium salts had a slight increase in the hair removal rate. However, as can be seen from Examples 10 to 12, after combining cellulase and imidazoline quaternary ammonium salts, the relative hair removal improvement rate of the detergent samples was significantly increased. Taking Example 10 as an example, the relative hair removal improvement rate of the detergent with the hair removal combination factors of cellulase and imidazoline quaternary ammonium salt composition increased from 14% and 22% to 40%.

[0129] Table 8: Test results of relative hair removal improvement rates of Comparative Examples 10 - 15 and Examples 10 - 12

[0130]

[0131]

[0132] In summary, in the comparative test with fabric detergent as the matrix, the cellulase and imidazoline quaternary ammonium salt hair removal composition also showed a synergistic effect in improving the hair removal effect.

[0133] Application Examples

[0134] The following is the application of the composition with synergistic hair removal effect in fabric washing and care products, including the specific applications in products such as hair removal liquid laundry detergent, hair removal concentrated laundry detergent, hair removal laundry beads, hair removal fabric softener, hair removal concentrated fabric softener, etc., as well as the formulations and preparation methods of these dosage forms. In the following tables, "-" indicates no addition.

[0135] The raw materials used in the application examples are all commercially available, as follows:

[0136] Dodecylbenzenesulfonic acid: The trade name is dodecylbenzenesulfonic acid, from Nanjing Jiahe Daily Chemical Co., Ltd.;

[0137] Coconut fatty acid: The trade name is distilled coconut oil fatty acid, from Wilmar Oleochemicals (Lianyungang) Co., Ltd.;

[0138] Liquid sodium hydroxide (50%): The trade name is liquid sodium hydroxide, from Shanghai Tianqingfeng Chemical Factory;

[0139] Polyoxyethylene (9) fatty alcohol ether: Lutensol A 9N, from Yangzi Petrochemical - BASF Co., Ltd.;

[0140] Disodium EDTA, the trade name is Dissolvine Na2, from Nouryon Chemicals (Ningbo);

[0141] Sodium lauryl polyether sulfate: The trade name is N 70, from BASF (China) Co., Ltd.;

[0142] Monoethanolamine, trade name MEA, from Dow Chemical (Shanghai) Co., Ltd.;

[0143] Isoalcohol ether: trade name Lutensol NE 9 from BASF (China) Co., Ltd.

[0144] Alcohol: trade name Alcohol, from Inner Mongolia Baiye Cheng Alcohol Manufacturing Co., Ltd.;

[0145] Protease: trade name UNO 101L, from Novozymes (China) Biotechnology Co., Ltd.;

[0146] Dipalmitoylethylhydroxyethylmethylammonium methyl sulfate, trade name REWOQUAT WE 28SH, from Evonik;

[0147] Propylene glycol: trade name Propylene glycol USP / EP, from Dow Chemical (Shanghai) Co., Ltd.;

[0148] Fragrance and preservatives are added in appropriate amounts according to cosmetic regulations as needed.

[0149] Application Example 1: Hair Removal Laundry Detergent

[0150]

[0151] Application Example 2: Hair Removal Concentrated Laundry Detergent

[0152]

[0153]

[0154] Application Example 3: Hair Removal Laundry Detergent Pods

[0155]

[0156] Application Example 4: Hair Removal Fabric Softener

[0157]

[0158]

[0159] Application Example 5: Hair Removal Concentrated Fabric Bacteriostatic Softener

[0160]

Claims

1. A composition for fabric washing and care having a synergistic hair removal effect, comprising: 0.01-30% by weight of an imidazoline quaternary ammonium salt; 0.001-2 wt% cellulase; and A carrier acceptable in the field of fabric care.

2. The composition according to claim 1, wherein The composition comprises 0.1-10 wt % of imidazoline quaternary ammonium salt.

3. The composition according to claim 2, wherein The composition comprises 0.1-5% by weight of an imidazoline quaternary ammonium salt.

4. The composition according to claim 1, wherein The composition comprises 0.01-1 wt% cellulase.

5. The composition according to claim 4, wherein The composition comprises 0.01-0.4 wt% cellulase.

6. The composition according to claim 1, wherein The weight ratio of cellulase to imidazoline quaternary ammonium salt is 1:5 to 1:

30.

7. The composition according to claim 6, wherein The weight ratio of cellulase to imidazoline quaternary ammonium salt is 1:10 to 1:

20.

8. The composition of claim 1, wherein The carrier acceptable in the fabric care field is water.

9. The composition of claim 1, wherein The carrier acceptable in the field of fabric care comprises dodecylbenzene sulfonic acid, polyoxyethylene (9) fatty alcohol ether, isomeric decanol polyoxyethylene ether, coconut oil acid, glycerin, propylene glycol, monoethanolamine, triethanolamine, ethanol, sodium lauryl alcohol polyether sulfate, sodium α-olefin sulfonate, fatty acid methyl ester polyoxyethylene ether, isomeric alcohol ether, potassium cocoyl glycinate, sodium lauroyl glutamate, alkyl glucoside, cocamidopropyl hydroxysulfobetaine, lauroyl propyl betaine, disalmitate carboxyethyl hydroxyethyl methyl methyl sulfate ammonium salt or a combination thereof.

10. Use of the composition according to any one of claims 1 to 9 in the preparation of a fabric cleaning product with a synergistic hair removal effect.

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