An antistatic laundry liquid composition and method of preparation

Abstract

The application provides an antistatic laundry liquid composition, which comprises the following components in mass fraction: an anionic surfactant 1-40%, a non-ionic surfactant 1-40%, a modified polyquaternary ammonium salt 0.1-10%, an auxiliary 0.1-10%, and the balance is deionized water; wherein the modified polyquaternary ammonium salt is obtained by copolymerization of propylene glycol treated by a cationic etherifying agent and acrylamide. Compared with the prior art, the antistatic capacity and the like of the components are significantly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the detergent technical field, in particular to an antistatic laundry liquid composition and a preparation method thereof. BACKGROUND

[0002] According to statistics, the population of people who raise dogs and cats in China has exceeded 80 million, and is showing a trend of continuous growth. Due to the fact that such people often come into contact with pets and generate friction, static electricity is formed on the clothes, which causes the clothes to easily stick to hair. Therefore, market research and analysis of the needs of such consumers for laundry care not only pursue the conventional cleaning and stain removal effect, but also pay more attention to the hair removal effect of detergents. However, most of the laundry liquid products currently on the market still mainly target stain removal ability, bacteria removal effect and fragrance retention ability, and the hair removal effect of common laundry liquid on the market is poor. The cost of specific antistatic hair removal cleaners is high, and they do not have strong stain removal ability.

[0003] The existing washing technology generally uses ordinary laundry liquid for cleaning, and then adds a corresponding antistatic hair removal cleaner for secondary cleaning of the clothes. However, such a cost is high, and the clothes need to be washed for a longer time. In addition, the addition of an antistatic additive in the laundry liquid product achieves a strong hair removal component, but generally has the defect of greatly weakened stain removal ability due to poor compatibility with other surfactants.

[0004] In summary, there is an urgent need to design a laundry liquid composition with good hair removal and stain removal effects to solve the above problems. SUMMARY

[0005] Based on this, the present application provides an antistatic laundry liquid composition and a preparation method thereof, which contains anionic surfactant, nonionic surfactant, modified polyquaternary ammonium salt and additive. Through the synergistic effect of various components, the laundry liquid composition has excellent stain removal and antistatic hair removal effect.

[0006] One object of the present application is to provide an antistatic laundry liquid composition, characterized in that the laundry liquid composition comprises the following components in mass fraction:

[0007]

[0008] the balance is deionized water;

[0009] The modified polyquaternary ammonium salt is obtained by copolymerization of propylene glycol treated with a cationic etherifying agent and acrylamide.

[0010] Further, the preparation method of the modified polyquaternary ammonium salt comprises the following steps:

[0011] S1, taking propenol, adding an aqueous solution of a base and a weakly basic ionic liquid of an alkali agent for alkalization treatment;

[0012] S2, under rapid stirring, adding a cationic etherifying agent to the mixed solution of step S1 to perform etherification reaction, to obtain an intermediate product;

[0013] S3, adding acrylamide to the intermediate product in step S2, purging nitrogen, adding benzoyl peroxide, and reacting at 60-80℃ for 2-4h;

[0014] S4, filtering, washing, centrifuging and drying the product obtained in step S3 to obtain the product.

[0015] Further, the anionic surfactant is selected from one or more of C8-18 ethoxylated fatty alcohol sulfate, fatty alcohol polyoxyethylene ether sulfate, ethoxylated fatty alcohol ether carboxylate, alcohol ether carboxylate, fatty alcohol polyoxyethylene carboxylate, N-lauroyl sarcosinate, and fatty acid salt.

[0016] Further, the nonionic surfactant is selected from one or more of fatty alcohol polyoxyethylene ether, fatty alcohol alkoxylate, fatty acid methyl ester ethoxylate, fatty acid alkylolamide, and alkyl glycoside.

[0017] Further, the weakly basic ionic liquid of the alkali agent is selected from one or more of formate, acetate, methyl formate, and ethyl acetate.

[0018] Further, the cationic etherifying agent is 2,3-oxirane trimethyl ammonium chloride.

[0019] Further, the mass ratio of propenol, cationic etherifying agent, and acrylamide is (0.1-5):(0.05-10):(0.1-10).

[0020] Further, the auxiliary agent is selected from one or more of anti-redeposition agent, thickening agent, biological enzyme, preservative, chelating agent, pH regulator, fragrance, and pigment.

[0021] Another object of the present application is to provide a preparation method of the above-mentioned antistatic laundry liquid composition, which comprises the following steps:

[0022] L1. Add part of deionized water in a reaction kettle, heat to 50-70℃, then add an alkaline auxiliary agent, stir uniformly, then add an anionic surfactant to obtain solution 1;

[0023] L2. Add a nonionic surfactant to the solution 1, stir uniformly, then add a modified polyquaternary ammonium salt and an anti-redeposition agent to the reaction kettle, stir until uniform and transparent,

[0024] L3. Add the rest of the deionized water, cool to 40-50℃, and then add a neutralizing agent to adjust the pH to 7.5-8.5,

[0025] L4. Finally, cool the reaction kettle to 40℃, add the remaining additives, and stir until uniform to obtain the antistatic laundry liquid composition.

[0026] The present application has the following beneficial effects:

[0027] In the process, propylene alcohol is used to replace the traditional cellulose component, etherification is carried out with a cationic etherifying agent, and then catalysis is used to graft copolymerize acrylamide monomers, so as to improve the adsorption capacity of the polymer, make it have the characteristics of lipophilic modification, accelerate the formation of a conductive layer on the surface of the fabric, and endow it with certain lubricity, thereby inhibiting the generation of static electricity. Weak alkaline ionic liquid is used as an alkali aid, which plays a medium role of a phase transfer carrier, can increase the contact between the lye and the active ingredients, improve the reaction efficiency, and has a certain activation effect on amine compounds. Compared with the prior art, the antistatic capacity of the component is significantly improved. DETAILED DESCRIPTION

[0028] The detergent of the present application is further described in detail below in combination with specific examples.

[0029] In order to more clearly illustrate the technical solutions of the present application, the following examples are listed. Unless otherwise stated, the raw materials, reactions and post-treatment means appearing in the examples are common raw materials on the market and technical means well known to those skilled in the art.

[0030] In this document, "including", "containing", "comprising", "having", or other variants thereof are intended to cover non-closed inclusion, and there is no distinction between these terms. The terms "containing" and "including" mean that other steps and ingredients that do not affect the final result can be added. The composition and method / process of the present application can contain, consist of and consist essentially of the essential elements and limiting terms described herein and any additional or optional ingredients, components, steps or limiting terms described herein.

[0031] In the examples and comparative examples, the following substances will be used and have the functions indicated, and all formulations occur in an environment of 25℃.

[0032] In the examples and comparative examples, the parts involved are all parts by mass.

[0033] The saturated fatty acid salt in the examples of the present application refers to C14 saturated fatty acid sodium, which is purchased from Fengyi Oils and Fats;

[0034] The unsaturated fatty acid salt in the examples of the present application refers to C14 oleic acid sodium, which is purchased from Fengyi Oils and Fats;

[0035] The anti-redeposition agent in the embodiment of the application refers to sodium polyacrylate, which is purchased from Dow, and the model number is ACUSOL445N;

[0036] The pigment in the embodiment of the application refers to a water-soluble pigment for laundry liquid, which is purchased from Milliken, and the model number is RED;

[0037] The preservative in the embodiment of the application refers to carboxin, which is purchased from Clariant, and the model number is Nipaguard CG;

[0038] The essence in the embodiment of the application refers to essence for laundry liquid, which is purchased from Givaudan, and the model number is 30020373.

[0039] The modified polyquaternary ammonium salt in the embodiment of the application is prepared according to the following means:

[0040] S1, 10 parts of deionized water are added to a reaction kettle, 1 part of propylene alcohol is added under stirring, and 30 wt% sodium hydroxide aqueous solution is added, wherein the mass fraction of sodium hydroxide is 0.1 part, 0.1 part of sodium acetate is further added, and pretreatment is carried out at 40 DEG C for 40 min.

[0041] S2, 0.5 parts of 2.3-oxirane trimethyl ammonium chloride are continuously added to the mixed solution under rapid stirring, etherification reaction is carried out at 80 DEG C for 2 h, and an intermediate product is obtained.

[0042] S3, after the etherification reaction is completed, 1 part of acrylamide and a catalytic amount of benzoyl peroxide are added under a nitrogen atmosphere, and reaction is carried out at 100 DEG C for 2 h.

[0043] S4, after the reaction is completed, the obtained substance is filtered, washed, centrifuged, and dried to obtain the modified polyquaternary ammonium salt.

[0044] Table 1. Composition ratio of laundry liquid compositions of examples 1-3 and comparative examples 1-2

[0045]

[0046]

[0047] The preparation method of the antistatic laundry liquid composition of examples 1-3 is as follows:

[0048] The components and their ratios in the antistatic laundry liquid compositions of examples 1-3 are shown in Table 1, and all are prepared by the following preparation method:

[0049] L1, 1 / 5 of the total amount of deionized water is added to a container and stirred uniformly;

[0050] L2, the temperature is raised to 60 DEG C, potassium hydroxide and anionic surfactant are added, and stirring is carried out until complete dissolution;

[0051] L3, add nonionic surfactant, modified polyquaternary ammonium salt, anti redeposition agent, stir until dissolved completely;

[0052] L4, add the rest of the deionized water, cool to 50°C, then adjust the pH of the solution to 7.5;

[0053] L5, after cooling to 40°C, add protease and preservative, pigment, essence, sodium chloride, stir until dissolved, to obtain an antistatic laundry liquid composition.

[0054] Comparative Example 1

[0055] Comparative Example 1 differs from Example 2 in that Comparative Example 1 does not add modified polyquaternary ammonium salt, and the other ingredients, ingredient mass fraction and preparation method are the same.

[0056] Comparative Example 2

[0057] Comparative Example 2 differs from Example 2 in that Comparative Example 2 replaces the modified polyquaternary ammonium salt with an equal amount of polyquaternary ammonium salt-10 (purchased from Guangzhou Tianci, model POLYQUTA400), and the other ingredients, ingredient mass fraction and preparation method are the same.

[0058] Test Example 1: Antistatic Property Test

[0059] Test Method: Test according to national standard GB / T 16801 "Determination of antistatic property of fabric conditioner".

[0060] 1. Test piece washing treatment

[0061] Cut the polyester cloth used for testing into 20 pieces of 100mm x 100mm cloth.

[0062] Dissolve the soap pieces (or soap grains, soap powder, soap base can all be used, dry sodium soap content is more than 54%) in distilled water or deionized water to prepare a 1g / L (calculated as dry sodium soap) soap solution, temperature 40°C-45°C.

[0063] Add 40°C-45°C soap solution 2L to the rinsing device (vegetable and fruit water separator or vegetable water separator), put in 20 pieces of 100mm x 100mm cloth, cover and rotate for 15min, the rotation mode is 5 clockwise, 5 counterclockwise, rotate for 3min, stop for 2min, the rotation rate is maintained at 18r / min-22r / min, repeat. After the time is up, discard the waste water, and quickly spin for 30s.

[0064] Into the rinsing machine, add 40-45°C distilled water or deionized water 2L, agitate for 3 minutes, rotate 5 clockwise and 5 counterclockwise, discard the waste water after the time is up, and spin for 30 seconds. Repeat this process 3 times.

[0065] 2. Drying of the test pieces

[0066] Using plastic tongs, pick up the washed cloth pieces, hang them up by the corners using plastic clips, and air dry at room temperature for 2-3 hours. After drying, remove them, lay them flat on filter paper, cover them with filter paper, place them in a porcelain dish, and dry them in a 45°C oven for 4 hours. Remove them and place them in a constant humidity chamber (glass desiccator with saturated calcium chloride solution under the partition), and store them for later use.

[0067] 3. Treatment of the test pieces with the conditioning agent test solution

[0068] Weigh 8.5g of the sample into a 1000mL beaker, add distilled water or deionized water to make 850mL. The sample concentration is 10.0g / L of solution, and divide it into 4 400mL beakers, each containing 200L of sample solution for parallel testing.

[0069] For each sample, take 4 pieces of 100mm x 100mm test pieces, immerse them in 4 200mL sample solutions at room temperature for 10 minutes, and occasionally stir them with a glass rod. Remove the soaked test pieces, hang them up by the corners using plastic clips, and air dry them for 3 hours. Then place them in a 45°C oven and dry them for 4 hours.

[0070] For one or more samples tested at the same time, take 4 pieces of test pieces for parallel blank tests (without soaking in the conditioning agent test solution). After drying, separate the different test pieces and the blank test pieces with filter paper so that they do not touch each other, and place them in a constant humidity chamber at room temperature for 15 hours or more.

[0071] 4. The results are shown in Table 2.

[0072] Table 2 Anti-static test results of the detergent compositions of Example 2 and Comparative Examples 1-2

[0073]

[0074]

[0075] As can be seen from Table 2, the anti-static effect of the washing composition of Example 2 on the lynx hair is obviously better than that of the standard laundry liquid and the detergent compositions of Comparative Examples 1-2 after the modified polyquaternary ammonium salt is added. It is proved that after the modified polyquaternary ammonium salt is added to the detergent, the conductive layer on the surface of the fabric can be formed faster, and the fabric is endowed with certain lubricity, thereby inhibiting the generation of static electricity and enhancing the anti-static performance. Comparative Example 1 has poor anti-static performance because no polyquaternary ammonium salt component is added, and Comparative Example 2 has relatively poor anti-static performance because the polyquaternary ammonium salt-10 is obtained by etherification of cellulose and a cationic etherifying agent, and thus the anti-static performance is not as good as that of the modified polyquaternary ammonium salt.

[0076] Test Example 2: Dehairing performance test

[0077] 1. Washing object: wash one piece of black pure cotton T-shirt (ensure new, and the same size and material)

[0078] 2. Required equipment and supplies: tweezers, electronic balance, drum washing machine (model: Haier EU8012B39SU1 (brand and model are not strictly required), clothes hanger, clip, beaker, lynx hair

[0079] 3. Hair sticking method: place the beaker on the electronic balance, take the lynx hair with tweezers and put it in the beaker, and accurately weigh to 0.0001 g (error ± 0.0020 g). Then hang the black pure cotton T-shirt on the clothes hanger with the two corners clamped with plastic clips, take 0.0500 g of cat hair with tweezers and evenly stick it on the front of the T-shirt, and then evenly stick the remaining cat hair on the back of the T-shirt with tweezers.

[0080] 4. Machine washing method: drum washing machine, washing machine brand and model: Haier EU8012B39SU1 (brand and model are not strictly required), washing mode: fast washing water volume (32L)

[0081] 5. Detergent addition amount: 30 g

[0082] 6. Post-washing treatment: after washing is completed, take out the black pure cotton T-shirt, hang it to dry for 24 h with the two corners clamped with plastic clips, then take off the lynx hair on the pure cotton T-shirt with tweezers and put it into the beaker, and then place it on the electronic balance for weighing, accurately weigh to 0.0001 g, and record the data.

[0083] 7. Cat hair removal rate calculation formula:

[0084] Removal rate (%) = (total mass of cat hair before washing - total mass of cat hair after washing) / total mass of cat hair before washing × 100%

[0085] 8. Test results:

[0086] Table 3 Cat hair removal test results of detergent compositions of Example 2 and Comparative Examples 1-2

[0087]

[0088] According to Table 3, it can be seen that the detergent composition of Example 2 has a significantly better cat hair removal effect than the standard laundry liquid and the detergent compositions of Comparative Examples 1-2 after adding the modified polyquaternary ammonium salt. It is proved that the addition of the modified polyquaternary ammonium salt can form a good synergistic effect in the formula system, provide strong adsorption capacity for the detergent, and achieve a strong hair removal effect. Comparative Example 1 has a poor cat hair removal effect due to the absence of polyquaternary ammonium salt. Comparative Example 2 adds polyquaternary ammonium salt-10, which has a relatively high relative molecular mass and can attract cat hair on the fabric through electrostatic attraction to achieve a certain adsorption effect. In Example 2, polyacrylamide is added, which is the etherification product of free copolymerized polyvinyl alcohol and cationic etherification agent, and has the characteristics of lipophilic modification, thereby improving the adsorption capacity of the polymer.

[0089] It is apparent to those skilled in the art that the present application is not limited to the details of the foregoing exemplary embodiments, and that the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and not restrictive, and the scope of the present application should be defined by the appended claims rather than the above description, and it is intended to encompass all changes falling within the meaning and range of equivalents of the claims.

[0090] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. An antistatic laundry liquid composition characterized in that, The laundry liquid composition comprises the following mass fractions of ingredients: The balance is deionized water; The modified polyquaternary ammonium salt is obtained by copolymerization of propenol treated with a cationic etherifying agent and acrylamide; The preparation method of the modified polyquaternary ammonium salt comprises the following steps: S1. Take propenol, add an aqueous solution of a base and a weakly basic ionic liquid as an alkali-assisting agent for alkali treatment; S2. Under rapid stirring, add a cationic etherifying agent to the mixture of step S1 for etherification reaction to obtain an intermediate product; S3. Add acrylamide to the intermediate product of step S2, introduce nitrogen, add benzoyl peroxide, and react at 60-80℃ for 2-4h; S4. Filter, wash, centrifuge, and dry the product obtained in step S3 to obtain the product; The nonionic surfactant is selected from one or more of fatty alcohol polyoxyethylene ether, fatty alcohol alkoxylate, fatty acid methyl ester ethoxylate, fatty acid alkylol amide, and alkyl glycoside; The weakly basic ionic liquid as an alkali-assisting agent is selected from one or more of formate, acetate, methyl formate, and ethyl acetate; The cationic etherifying agent is 2,3-epoxypropyltrimethylammonium chloride; The mass ratio of propenol, cationic etherifying agent, and acrylamide is (0.1-5):(0.05-10):(0.1-10).

2. The anti-static laundry liquid composition according to claim 1, wherein, The auxiliary agent is selected from one or more of anti-redeposition agents, thickening agents, biological enzymes, preservatives, chelating agents, pH regulators, fragrances, and pigments.

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