CN107129882B - Transparent laundry detergent composition with washing and softening effects and preparation method thereof - Google Patents

Abstract

A transparent laundry detergent composition with washing and softening effects and a preparation method thereof are disclosed, wherein the laundry detergent composition comprises 1-15 parts by weight of ester-based quaternary ammonium salt, 5-40 parts by weight of nonionic surfactant and 0.1-5 parts by weight of colloid stabilizer, wherein the ester-based quaternary ammonium salt comprises unsaturated fatty chain ester-based quaternary ammonium salt, and the weight percentage of the unsaturated fatty chain ester-based quaternary ammonium salt in the total amount of the ester-based quaternary ammonium salt is more than or equal to 50%; the method comprises the following steps: adding esterquat and a colloid stabilizer into water while stirring, wherein the temperature is controlled to be 55-65 ℃; cooling to 40-50 deg.C, adding nonionic surfactant, and stirring; optionally, cooling to 30-40 deg.C, adding one or more of zwitterionic surfactant, chelating agent, whitening agent, anti-dye transfer agent, enzyme-containing stabilizer, antiseptic, pigment, and essence, and stirring. The laundry detergent composition has the effect of softening and integrating washing and protecting, has good high and low temperature stability and is more attractive.

Description

Transparent laundry detergent composition with washing and softening effects and preparation method thereof

Technical Field

The application relates to but is not limited to the field of detergents, in particular to but not limited to a transparent laundry detergent composition with washing and softening effects and a preparation method thereof.

Background

Currently, for detergents, in addition to detersive efficacy, consumers also focus on care efficacy. Conventional laundry detergents generally do not have softening efficacy and therefore, after laundering, softening care is often required. Commonly used softeners are primarily made of alkyl chains (primarily C16-C18) and silicone groups to provide softening efficacy. The quaternary ammonium salt softener has small polarity of linear chain fatty alkane, can change configuration rapidly under the action of external force, can be adsorbed on fabric to reduce the dynamic and static friction coefficient of the surface, can reduce the fabric abrasion caused by friction in the washing process, and can endow the fabric with soft and smooth hand feeling. Because the biodegradability of the alkyl quaternary ammonium salt is poor, green, environment-friendly and biodegradable ester quaternary ammonium salt is gradually paid attention. Therefore, the laundry detergent with the washing and protecting integrated effect can be obtained by adding the esterquat into the formulation of the laundry detergent.

Methods for adding esterquat to laundry detergent formulations to achieve a combined wash and care benefit have been disclosed. The laundry detergent containing esterquat prepared by the inventor of the application by using the disclosed formula and method is an emulsion-like product, and usually needs to be added with a sunscreen agent in the formula. And the transparent laundry detergent is beautiful and elegant, and is more acceptable to consumers. However, no report is found on how to prepare the transparent laundry detergent by utilizing the esterquat, and the factors for determining whether the laundry detergent is emulsion-like or transparent are not clear to the skilled person at present.

Disclosure of Invention

The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

The inventor of the application unexpectedly finds that the transparent laundry detergent is difficult to prepare by adopting the ester quaternary ammonium salt mainly comprising the saturated fatty chain, the stability of the obtained laundry detergent is poor, and the layering phenomenon can occur after high and low temperature tests. Only by adopting ester-based quaternary ammonium salt containing a certain proportion of unsaturated fatty chain can the transparent laundry detergent be prepared. Based on this, the inventors of the present application have proposed a concept that "the composition of the alkyl chain of the esterquat has a large influence on the properties of the laundry detergent". In addition, the inventor of the application also finds that the weight ratio of the nonionic surfactant to the esterquat in the formula of the laundry detergent and the composition of the nonionic surfactant also have influence on the property and stability of the product.

Based on the above theoretical research, the inventors of the present application propose a preparation scheme for preparing a stable and transparent laundry detergent composition with a washing and protecting integrated effect by using esterquat.

Specifically, the application provides a transparent laundry detergent composition with washing and softening effects, which comprises the following components in parts by weight:

ester quaternary ammonium salt 1-15 weight portions

5-40 parts by weight of nonionic surfactant

0.1-5 parts of colloid stabilizer;

the ester-based quaternary ammonium salt comprises unsaturated fatty chain ester-based quaternary ammonium salt, and the weight percentage of the unsaturated fatty chain ester-based quaternary ammonium salt in the total amount of the ester-based quaternary ammonium salt is more than or equal to 50%.

In an embodiment of the present application, the weight ratio of the nonionic surfactant to the esterquat may be greater than or equal to 2: 1.

In an embodiment of the present application, the esterquat may be selected from one or more of triethanolamine esterquat and methyldiethanolamine esterquat.

In an embodiment of the present application, the esterquat may be a bis-alkyl esterquat.

In embodiments herein, the nonionic surfactant may be a fatty alcohol-polyoxyethylene ether, or a mixture of a fatty alcohol-polyoxyethylene ether and an alkyl glycoside and/or a fatty acid methyl ester ethoxylate and/or a grease ethoxylate.

Optionally, the nonionic surfactant is a mixture of fatty alcohol polyoxyethylene ether and alkyl glycoside and/or fatty acid methyl ester ethoxylate.

In an embodiment of the present application, the weight percentage of the fatty alcohol-polyoxyethylene ether in the mixture is greater than or equal to 50%.

In embodiments herein, the colloidal stabilizer may be selected from one or more of polyethylene glycol distearate, polyethylene glycol methyl glucose dioleate, hydroxyethyl cocamide.

In embodiments herein, the laundry detergent composition may further comprise a zwitterionic surfactant.

Alternatively, the zwitterionic surfactant may be 1 to 20 parts by weight.

In embodiments of the present application, the zwitterionic surfactant may be a zwitterionic surfactant commonly used in the art.

Optionally, the zwitterionic surfactant is selected from one or more of cocamidopropyl betaine, lauramidopropyl amine oxide, disodium cocoamphodiacetate.

In embodiments herein, the laundry detergent composition may further comprise one or more of a chelating agent, a whitening agent, an anti-dye transfer agent, an enzyme-containing stabilizer, a preservative, a pigment, a perfume.

In embodiments of the present application, the chelating agent, whitening agent, anti-dye transfer agent, enzyme-containing stabilizer, preservative, pigment, perfume may be conventional products in the art.

The present application also provides a method of preparing a laundry detergent composition as described above, comprising:

adding esterquat and a colloid stabilizer into water while stirring, wherein the temperature is controlled to be 55-65 ℃;

cooling to 40-50 deg.C, adding nonionic surfactant, and stirring;

optionally, cooling to 30-40 deg.C, adding one or more of zwitterionic surfactant, chelating agent, whitening agent, anti-dye transfer agent, enzyme-containing stabilizer, antiseptic, pigment, and essence, and stirring.

According to the transparent laundry detergent composition with washing and softening effects, the unsaturated fatty chain ester-based quaternary ammonium salt is selected, the content of the unsaturated fatty chain ester-based quaternary ammonium salt is controlled, the appropriate nonionic surfactant is selected, the weight ratio of the nonionic surfactant to the ester-based quaternary ammonium salt is controlled, the content of the ester-based quaternary ammonium salt in the laundry detergent is increased, a better softening effect is obtained, and the high and low temperature stability and the attractiveness are improved.

Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof.

Detailed Description

Hereinafter, embodiments of the present application will be described in detail to make objects, technical solutions and advantages of the present application more apparent. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

Examples 1 to 5 and comparative examples 1 to 2

Weighing the raw material components according to the formula in table 1;

adding esterquat and a colloid stabilizer into deionized water while stirring, wherein the temperature is controlled to be 55-65 ℃;

cooling to 40-50 deg.C, adding nonionic surfactant, and stirring to disperse uniformly;

cooling to 30-40 deg.C, adding zwitterionic surfactant, chelating agent, dye transfer resisting agent, antiseptic, pigment, essence, etc., stirring and dissolving until the system is uniform.

Wherein, the trade names or abbreviations of some components are as follows:

EQ 400: triethanolamine-based esterquat, oleic acid, LG chemical company;

EQ 200: triethanolamine esterquat, mainly palmitic acid, LG chemical company;

AEO 9: fatty alcohol polyoxyethylene ether, average degree of oxyethylation of 9, nonionic surfactant, Lutensol A9N by basf;

AEO 7: fatty alcohol polyoxyethylene ether, average degree of oxyethylation of 7, nonionic surfactant, Lutensol A7N, basf company;

APG: alkyl glycoside, nonionic surfactant, Shanghai Kai chemical Co., Ltd., APG 0810;

FMEE: fatty acid methyl ester ethoxylates, nonionic surfactants, mexican hakurit;

CAB: cocamidopropyl betaine, zwitterionic surfactant, Zhejiang Zanyu science, Inc.;

638: polyethylene glycol 6000 distearate, guang chemical ltd, guangzhou;

CBS-X: fluorescent whitening agent, 4, 4' -bis (2-sodium sulfonate styryl) biphenyl, basf corporation;

EDTA-2 Na: chelating agents, disodium salts of ethylenediaminetetraacetic acid, aksunobel corporation;

HP 66: anti-dye transfer agents, copolymers of vinylpyridine-vinylpyrrolidone, basf corporation.

TABLE 1

	Example 1	Example 2	Example 3	Example 4	Example 5	Comparative example 1	Comparative example 2
								Components	Content%	Content%	Content%	Content%	Content%	Content%	Content%
EQ400	1	3	5	10	15	/	/
								EQ200	/	/	/	/	/	3	10
AEO9	6	8	15	20	25	8	15
								AEO7	4	2	/	8	10	2	5
APG	/	/	2	2	/	/	5
								FMEE	3	/	3	/	5	/	/
CAB	1	/	/	1	0.5	/	1
								CBS-X	0.01	0.01	/	/	/	0.01	/
638	2	1	0.5	0.5	0.2	1	0.5
								EDTA-2Na	0.2	0.2	0.2	0.1	0.1	0.2	0.1
HP66	0.1	0.1	/	/	/	0.1	/
								Enzyme preparation (enzyme-containing stabilizing system)	0.5	0.5	/	/	/	0.5	/
Pigment	0.15	0.15	0.15	0.15	0.15	0.15	0.15
								Essence	0.3	0.3	0.3	0.3	0.3	0.3	0.3
Preservative	0.2	0.2	0.2	0.2	0.2	0.2	0.2
								Deionized water	Balance of	Balance of	Balance of	Balance of	Balance of	Balance of	Balance of

Test example

1. Appearance shape and temperature stability test

The appearance of the laundry detergents prepared in the examples and comparative examples was observed and examined after the laundry detergents were left at 45 ℃ and-18 ℃ for 24 hours and then returned to room temperature, and the results are shown in table 2.

TABLE 2

	Example 2	Example 4	Comparative example 1	Comparative example 2
					At room temperature	Clear and transparent	Clear and transparent	Turbidity	Opacification
45℃	Clear and transparent	Clear and transparent	Layering	Layering
					-18℃	Clear and transparent	Clear and transparent	Layering	Layering

As can be seen from Table 2, the laundry detergents prepared in examples 2 and 4 by using the esterquat based on oleic acid are clear and transparent, and have no change in appearance after being placed in an environment of 45 ℃ and-18 ℃ for 24h, while the laundry detergents prepared in comparative examples 1 and 2 by using the esterquat based on palmitic acid are not transparent, do not resist high and low temperatures, and are easy to delaminate. The transparent laundry detergent composition with better stability can be prepared mainly by adopting the unsaturated fatty chain ester quaternary ammonium salt.

2. Stain removal Performance test

The detergency of the laundry detergent compositions prepared in examples 1-5 was determined according to the detergency method of standard QB/T1224-.

Table 3 comparison of detergency performance of laundry detergent compositions prepared in examples 1-5 with that of national standard laundry detergent

	JB01	JB02	JB03
				Standard laundry detergent	1.00	1.00	1.00
Example 1	1.02	2.25	1.28
				Example 2	1.05	2.34	1.37
Example 3	1.12	1.15	1.09
				Example 4	1.25	1.29	1.18
Example 5	1.18	1.22	1.08

As can be seen from table 3, the detergency of the laundry detergent compositions prepared in examples 1 to 5 all exceeded the national standard laundry detergent.

3. Softness Performance test

Preparation 250ppm (Ca)²⁺：Mg²⁺3: 2) dissolving 5g of the laundry detergent composition prepared in the examples in 2L of hard water, stirring to dissolve completely, placing a piece of knitted white cotton cloth 40cm × 40cm in size, soaking and scrubbing for 30 times, and soaking for 10 minRinsing for 2 times, wherein the rinsing water amount is 2L each time, wringing and drying. The previous washing process was repeated 5 more times.

Please see table 4 for the softness of the white cotton cloth by hand blindly among 120 other people.

Table 4 softness performance test results

	Standard laundry detergent	Common laundry detergent sold in the market	Example 1	Example 3	Example 5
						Which cotton cloth is softer (inferior)	35		85
Which cotton cloth is softer (inferior)		5		115
						Which cotton cloth is softer (inferior)		0			120

As can be seen from table 4, most of the testers considered the cotton cloth washed with the laundry detergent composition prepared in the examples of the present application to be softer than the cotton cloth washed with the standard laundry detergent and the commercially available normal laundry detergent.

Although the embodiments disclosed in the present application are described above, the descriptions are only for the convenience of understanding the present application, and are not intended to limit the present application. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims.

Claims (5)

1. A transparent laundry detergent composition with washing and softening effects comprises ester-based quaternary ammonium salt, a surfactant and a colloid stabilizer, wherein the surfactant is a nonionic surfactant or a mixture of the nonionic surfactant and a zwitterionic surfactant, the ester-based quaternary ammonium salt accounts for 1-15 parts by weight, the nonionic surfactant accounts for 5-40 parts by weight, the colloid stabilizer accounts for 0.1-5 parts by weight, and the zwitterionic surfactant accounts for 1-20 parts by weight;

the ester-based quaternary ammonium salt is triethanolamine-type ester-based quaternary ammonium salt, wherein the triethanolamine-type ester-based quaternary ammonium salt comprises unsaturated fatty chain ester-based quaternary ammonium salt, and the weight percentage of the unsaturated fatty chain ester-based quaternary ammonium salt in the total amount of the ester-based quaternary ammonium salt is more than or equal to 50%;

the nonionic surfactant is fatty alcohol polyoxyethylene ether with average degree of oxyethylation of 7-9, or a mixture of fatty alcohol polyoxyethylene ether with average degree of oxyethylation of 7-9 and alkyl glycoside and/or fatty acid methyl ester ethoxylate and/or grease ethoxylate;

the zwitterionic surfactant is selected from one or more of cocamidopropyl betaine, lauramidopropyl amine oxide and disodium cocoamphodiacetate;

the colloid stabilizer is selected from one or more of polyethylene glycol distearate, polyethylene glycol methyl glucose dioleate, and hydroxyethyl cocamide.

2. The laundry detergent composition of claim 1, wherein the weight ratio of the nonionic surfactant to the esterquat is greater than or equal to 2: 1.

3. The laundry detergent composition of claim 1, wherein the fatty alcohol polyoxyethylene ether having an average degree of oxyethylation of 7 to 9 is present in the nonionic surfactant mixture in an amount of not less than 50% by weight.

4. The laundry detergent composition of claim 1, further comprising one or more of a chelating agent, a whitening agent, an anti-dye transfer agent, an enzyme-containing stabilizer, a preservative, a pigment, a fragrance.

5. A method of making the laundry detergent composition of any of claims 1-4, comprising:

adding esterquat and a colloid stabilizer into water while stirring, wherein the temperature is controlled to be 55-65 ℃;

cooling to 40-50 deg.C, adding nonionic surfactant, and stirring;

optionally, cooling to 30-40 deg.C, adding one or more of zwitterionic surfactant, chelating agent, whitening agent, anti-dye transfer agent, enzyme-containing stabilizer, antiseptic, pigment, and essence, and stirring.