CN114606075A

CN114606075A - Bathroom cleaning agent and preparation method thereof

Info

Publication number: CN114606075A
Application number: CN202210266492.3A
Authority: CN
Inventors: 蔡珂; 张耀东; 刘亚军
Original assignee: Anfu Chaowei Rihua Co ltd
Current assignee: Anfu Chaowei Rihua Co ltd
Priority date: 2022-03-17
Filing date: 2022-03-17
Publication date: 2022-06-10

Abstract

The invention discloses a bathroom cleaner and a preparation method thereof, wherein the bathroom cleaner comprises the following components in percentage by mass: 2 to 6 percent of lactic acid, 1 to 10 percent of surfactant, 1 to 10 percent of washing assistant, 0.01 to 5 percent of chelating agent, 0.01 to 1 percent of bactericide, 0.01 to 2 percent of preservative, 0.1 to 0.4 percent of essence and the balance of deionized water; the preparation method comprises the following steps: weighing the following components in percentage by mass: 2-6% of lactic acid, 1-10% of surfactant, 1-10% of washing assistant, 0.01-5% of chelating agent, 0.01-1% of bactericide, 0.01-2% of preservative, 0.1-0.4% of essence and the balance of deionized water, wherein the sum of the mass percentages of the components is 100%; adding a surfactant, a washing assistant, a bactericide and essence into a pre-pot, and uniformly stirring after mixing to obtain a corresponding mixture; adding deionized water and a chelating agent into the obtained mixture, and uniformly stirring the mixture to obtain a corresponding mixed solution; adding antiseptic into the obtained mixed solution, mixing, and stirring. The bathroom cleaner provided by the invention solves the problems that the cleaner has high-efficiency dirt capacity and high irritation.

Description

Bathroom cleaning agent and preparation method thereof

Technical Field

The invention belongs to the technical field of detergent production, and particularly relates to a bathroom detergent and a preparation method thereof.

Background

The bathroom dirt mainly comprises water scale, sebum dropped from human bodies, soap residue and the like, wherein the most difficult to remove is white massive or powdery water scale. These scales are mainly compounds such as carbonates, sulfates, chlorides formed by calcium and magnesium ions in hard water at high temperature, and are also called calcium scales or magnesium scales, which are inorganic salts and have similar chemical properties.

In order to reduce the corrosive action of the cleaning agent on glass, ceramics, stainless steel and other facilities in a bathroom and efficiently remove dirt in the bathroom, organic acids are widely selected as main components of bathroom cleaning agents in the market at present. Malic acid, citric acid and oxalic acid, which are the most commonly used organic acids, are often added to a formula individually or in combination to form a main body of a detergent. Bathroom dirt is difficult to remove through long-term accumulation, adhesion and weathering, and the organic acid is slightly weaker than inorganic acid such as hydrochloric acid, sulfuric acid and the like. Therefore, the amount of the organic acid to be added may be greatly increased in order to achieve the same cleaning effect as that of the inorganic acid.

The organic acid has sour taste, and the sour taste of the cleanser itself is increased after a large amount of the organic acid is added to the components of the cleanser, and when the cleanser is used in a space with limited ventilation such as a bathroom, the nasal mucosa of a human body feels very uncomfortable due to the sour taste.

The existing technologies for reducing the irritation of detergents are mainly divided into the following aspects: the cleaning agent is added with an odor removing agent, an environment-friendly biological enzyme and the like to achieve the purpose of reducing the irritation of the cleaning agent. And (II) adding components such as a neutralizing agent and the like into the components of the cleaning agent, so that the organic acid in the cleaning agent and the neutralizing agent have a neutralization reaction, and the irritation of the cleaning agent is reduced, but because a large amount of organic acid and the neutralizing agent are neutralized, only a small amount of organic acid plays a cleaning role, and the cleaning effect is poor, the irritation of the cleaning agent is reduced at the cost of the basic effects of the cleaning agent, such as sterilization and the like, and a large amount of organic acid is wasted. Meanwhile, the organic acid and the neutralizing agent have neutralization reaction which is acid-base neutralization reaction, a large amount of heat can be released in the reaction, and certain danger can be generated during production. Thirdly, the organic acid with mild acidity is introduced into the components of the cleanser, but the cleanser is often used in combination with other acid with strong acidity, so that the irritation of the cleanser is not effectively improved; however, in order to achieve a strong cleansing effect, the proportion of the mildly acidic organic acid to be added to the cleanser component is often increased, and the irritation of the cleanser is rather increased by excessively increasing the proportion of the organic acid.

Therefore, reducing the irritation of detergents while providing detergents with high detergency has become an urgent problem in detergent production.

Disclosure of Invention

In view of the defects in the prior art, the invention provides a bathroom cleaner and a preparation method thereof, and aims to solve the problems that the existing cleaner has high-efficiency dirt capacity and high irritation.

In order to solve the problems, the invention provides a bathroom cleaner and a preparation method thereof, wherein the bathroom cleaner comprises the following components in percentage by mass: 2 to 6 percent of lactic acid, 1 to 10 percent of surfactant, 1 to 10 percent of washing assistant, 0.01 to 5 percent of chelating agent, 0.01 to 1 percent of bactericide, 0.01 to 2 percent of preservative, 0.1 to 0.4 percent of essence and the balance of deionized water.

Preferably, the mass percent of the lactic acid is 3-5%, and the mass percent of the chelating agent is 0.01-2%.

Preferably, the surfactant is one or more of fatty alcohol-polyoxyethylene ether, alkylphenol ethoxylates and alkyl glycoside.

Preferably, the washing assistant is one or more of acetone condensed glycerol, sodium alkyl benzene sulfonate, sodium sulfate, sodium tripolyphosphate, dipropylene glycol methyl ether, propylene glycol, ethylene glycol and diethylene glycol butyl ether.

Preferably, the chelating agent is one or more of EDTA-2Na, EDTA-4Na, trisodium methylglycine diacetate, tetrasodium glutamate diacetate, sodium dihydrogen phosphate and sodium pyrophosphate.

Preferably, the bactericide is one or more of dodecyl dimethyl benzyl ammonium chloride, hexadecyl trimethyl ammonium chloride, didecyl dimethyl ammonium chloride, N-didecyl-N-methyl-poly (oxyethyl) ammonium propionate and sodium benzoate.

Preferably, the preservative is one or two of sodium benzoate and cason.

The invention also provides a preparation method of the bathroom cleaner, which comprises the following steps:

s10, weighing the following components in percentage by mass: 2-6% of lactic acid, 1-10% of surfactant, 1-10% of washing assistant, 0.01-5% of chelating agent, 0.01-1% of bactericide, 0.01-2% of preservative, 0.1-0.4% of essence and the balance of deionized water, wherein the sum of the mass percentages of the components is 100%;

s20, adding a surfactant, a washing assistant, a bactericide and essence into the pre-pot, and uniformly stirring after mixing to obtain a corresponding mixture;

s30, adding deionized water and a chelating agent into the mixture obtained in the step S20, and uniformly stirring the mixture after mixing to obtain a corresponding mixed solution;

s40, adding a preservative into the mixed solution obtained in the step S30, and uniformly stirring after mixing.

Specifically, the time for uniform stirring in step S30 is 10min to 30 min.

Specifically, the time for uniform stirring in step S40 is 5min to 20 min.

According to the bathroom cleaner and the preparation method thereof provided by the embodiment of the invention, lactic acid is used as decontamination acid in the cleaner, and the lactic acid is milder in acidity and lower in irritation compared with other organic acids, so that the prepared cleaner has low irritation, and a chelating agent is introduced into the components of the cleaner, can effectively complex metal ions such as calcium and magnesium in dirt, is matched with the lactic acid to perform decontamination, and can enhance the decontamination effect of the cleaner. On the other hand, the lactic acid used in the components has antibacterial performance, so that the addition amount of the bactericide in the formula of the detergent can be effectively reduced, and the development cost of the detergent product is saved.

Drawings

FIG. 1 is a flow chart of a method for preparing a bathroom cleaner provided by an embodiment of the present invention;

FIG. 2 is a line graph of detergency for samples of examples 1-8 and comparative examples 1-4 of the present invention;

fig. 3 is a nasal cavity stimulation/min bar graph of samples of examples 1-8 and comparative examples 1-4 of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention are described in detail below with reference to the accompanying drawings. Examples of these preferred embodiments are illustrated in the accompanying drawings. The embodiments of the invention shown in the drawings and described in accordance with the drawings are exemplary only, and the invention is not limited to these embodiments.

It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and/or processing steps closely related to the scheme according to the present invention are shown in the drawings, and other details not so relevant to the present invention are omitted.

The embodiment of the invention firstly provides a bathroom cleaner and a preparation method thereof, wherein the bathroom cleaner comprises the following components in percentage by mass: 2 to 6 percent of lactic acid, 1 to 10 percent of surfactant, 1 to 10 percent of washing assistant, 0.01 to 5 percent of chelating agent, 0.01 to 1 percent of bactericide, 0.01 to 2 percent of preservative, 0.1 to 0.4 percent of essence and the balance of deionized water.

Specifically, the lactic acid is natural L-lactic acid. The natural L-lactic acid is formed by fermenting sugar, is mild in acidity and weak in irritation compared with organic acids such as citric acid and oxalic acid.

According to the bathroom cleaner and the preparation method thereof provided by the embodiment, lactic acid is used as decontamination acid in the cleaner, and the lactic acid is milder in acidity and lower in irritation compared with other organic acids, so that the prepared cleaner has low irritation, and meanwhile, a chelating agent is introduced into the components of the cleaner, can effectively complex metal ions such as calcium and magnesium in dirt, is matched with the lactic acid to perform decontamination, and has a synergistic descaling effect with the lactic acid, so that a good descaling effect can be achieved by using a small amount of lactic acid, and the decontamination effect of the cleaner can be enhanced. On the other hand, the lactic acid used in the components has antibacterial performance, so that the addition amount of the bactericide in the formula of the detergent can be effectively reduced, and the development cost of the detergent product is saved.

In a preferable scheme, the mass percent of the lactic acid is 3-5%, and the mass percent of the chelating agent is 0.01-2%.

In a preferred scheme, the surfactant is one or more of fatty alcohol-polyoxyethylene ether, alkylphenol ethoxylates and alkyl glycoside.

In a preferable scheme, the washing assistant is one or more of acetone condensed glycerol, sodium alkyl benzene sulfonate, sodium sulfate, sodium tripolyphosphate, dipropylene glycol methyl ether, propylene glycol, ethylene glycol and diethylene glycol butyl ether.

In a preferred scheme, the chelating agent is one or more of EDTA-2Na, EDTA-4Na, trisodium methylglycinediacetate, tetrasodium glutamate diacetate, sodium dihydrogen phosphate and sodium pyrophosphate.

In a preferred scheme, the bactericide is one or more of dodecyl dimethyl benzyl ammonium chloride, hexadecyl trimethyl ammonium chloride, didecyl dimethyl ammonium chloride, N-didecyl-N-methyl-poly (oxyethyl) ammonium propionate and sodium benzoate.

In a preferred scheme, the preservative is one or two of sodium benzoate and cason.

The embodiment of the invention also provides a preparation method of the bathroom cleaner, which comprises the following steps:

s10, weighing the following components in percentage by mass: 2-6% of lactic acid, 1-10% of surfactant, 1-10% of washing assistant, 0.01-5% of chelating agent, 0.01-1% of bactericide, 0.01-2% of preservative, 0.1-0.4% of essence and the balance of deionized water, wherein the sum of the mass percentages of the components is 100%.

S20, adding the surfactant, the washing assistant, the bactericide and the essence into the pre-pot, and uniformly stirring after mixing to obtain a corresponding mixture.

S30, adding deionized water and a chelating agent into the mixture obtained in the step S20, and uniformly stirring after mixing to obtain a corresponding mixed solution.

Specifically, the time for uniform stirring in step S30 is 10min to 30 min.

Specifically, the time for uniform stirring in step S40 is 5min to 20 min.

The present invention will be described in more detail with reference to the following examples 1 to 9, which are given by way of the above-mentioned embodiments, but the present invention is not limited to the following examples. Table 1 shows the composition of the cleaners of examples 1-8, as shown in Table 1 below:

table 1:

continuing with Table 1:

table 2 shows the composition of the cleaners of examples 9-11, as shown in Table 2 below:

table 2:

based on the above examples 1 to 9, 7 kinds of detergents are also provided as comparative examples, as shown in the following tables 3 and 4, table 3 shows the contents of components of organic acids of the detergents of comparative examples 1 to 4, and table 4 shows the pH values of the detergents of comparative examples 5 to 7.

Table 3:

comparative example	Organic acid (citric acid)
		Comparative example 1	3％
Comparative example 2	4％
		Comparative example 3	5％
Comparative example 4	3％

Table 4:

comparative example	pH value
		Comparative example 5	2.19
Comparative example 6	7.41
		Comparative example 7	10.82

The rest of the components of comparative example 1 are the same as those of example 4, the rest of the components of comparative example 2 are the same as those of example 5, the rest of the components of comparative example 3 are the same as those of example 6, and comparative examples 4-7 are some of the detergents which are commercially available at present.

Respective detergent samples were prepared based on the above examples 1 to 11 and comparative examples 1 to 7, and the prepared detergent samples were subjected to a detergency test and a nasal cavity irritation test.

Wherein, the detergency test method is as follows:

(1) preparation of calcium scale tablet

Weighing clean glass slide with specification of 7.5cm x 2.5cm, weighing the glass slide with balance, and recording as m₀(ii) a Dripping about 2.0g of the prepared calcium scale solution in a laboratory on a glass slide, and then uniformly coating the surface of the glass slide; aging in a 105 deg.C oven for 24 hr, taking out, standing at room temperature for 2 hr(ii) a After the glass slide is restored to the room temperature, weighing the mass of the calcium scale sheet and recording the mass as m₁。

(2) Stain removal test

200ml of bathroom scale cleaning agent stock solution to be tested is added into a 300ml beaker, the part of the glass slide with the calcium scale is completely immersed in the solution, and the glass slide is timed, and taken out immediately after 5 minutes; then putting the calcium scale tablets into a beaker filled with clear water, cleaning for 10 seconds, and taking out; placing the tested glass slide in a 105 ℃ oven for 24 hours, taking out, and standing for 2 hours at room temperature; after the glass slide is restored to the room temperature, weighing the mass of the calcium scale sheet and recording the mass as m₂。

The detergency was expressed by the change in mass of each stage of the slide glass and calculated as follows

X＝(m₁-m₂)/(m₁-m₀)*100％

In the formula: x-detergency;

m₀-the dry weight of the slide;

m₁the quality of the glass slide after being evenly coated with the calcium scale and dried;

m₂-the quality of the slide after completion of the decontamination test and air drying;

note: the test environments are all at 25 ℃ room temperature.

The nasal irritation test method was as follows:

(1) placing each proportion of the bathroom cleaner stock solution to be subjected to the irritation test and the bathroom cleaner stock solution in the embodiment into spray bottles with the specification of 500ml respectively; the following operations were performed alongside the laboratory water basin: pressing the pre-pressing spray gun of the bottle for 10 seconds by using the right hand to spray liquid; the face of the tester is close to the water pool, the left hand is continuously stirred, and the mouth and the nose are used for experiencing the stimulation in the air environment near the water pool for 10 seconds.

(2) The nasal mucosa irritation evaluation method comprises the following steps:

a total of 12 tested volunteers (age 23-45 years) were selected, and nasal mucosa stimulation sensory evaluation was performed on the bathroom cleanser, and the detergency effect was evaluated by scoring 5 degrees as follows: 10 minutes, the stimulation of the nasal mucosa is very strong; 8 minutes, the irritation of the nasal mucosa is stronger; 6 minutes, the irritation of nasal mucosa is general; 4, the irritation of nasal mucosa is weak; 0 point, no irritation to nasal mucosa. The average value of the scores of 20 volunteers was used as the evaluation result of the irritation of the nasal mucosa.

The above-described detergency test method and nasal cavity irritation test method were used to obtain test data as shown in tables 5 and 6, in which table 5 shows detergency test and nasal cavity irritation test data for the detergent samples of examples 1 to 8 and comparative examples 1 to 4, and table 6 shows detergency test and nasal cavity irritation test data for the detergent samples of example 9 and comparative examples 5 to 7.

Table 5:

table 6:

fig. 2 and 3 are a detergency line graph and a nasal cavity irritation bar graph of the detergent samples of examples 1 to 8 and comparative examples 1 to 4 plotted according to the test data of table 5.

As can be seen from table 5 and fig. 2, in the detergent samples prepared using lactic acid as the desmutting acid, the detergency was enhanced as the acid content was increased, and when the acid content was more than 6%, the detergency was always maintained at a high level but slightly fluctuated. When the content of the lactic acid is lower than 6%, the detergency of the bathroom cleaner prepared by using the lactic acid as the decontamination acid is slightly lower than that of the bathroom cleaner prepared by using citric acid as the decontamination acid, but when the content of the lactic acid reaches 6%, the detergency of the bathroom cleaner prepared by using the lactic acid as the decontamination acid is not much lower than that of the bathroom cleaner prepared by using citric acid as the decontamination acid, so that the bathroom cleaner prepared by using the lactic acid as the decontamination acid can also realize high-efficiency decontamination effect. Meanwhile, as can be seen from fig. 3, when the content of lactic acid reached 6%, the irritativeness of the detergent was lower than that of the bathroom detergent prepared with citric acid as the desmutting acid. In addition, when the lactic acid content is 3%, the bathroom cleaner has low irritation, and the decontamination capability can reach about 78%.

As can be seen from fig. 3, in the detergent samples prepared using lactic acid as the decontaminating acid, the irritativeness of the corresponding detergent samples was gradually increased as the amount of lactic acid added was increased, while the bathroom detergent samples prepared using citric acid as the decontaminating acid had far more irritativeness of the nasal cavity than the lactic acid-based bathroom detergent with the same acid content, although having very similar detergency, than the lactic acid-based bathroom detergent with the same acid content, by about 2 times.

Therefore, the preferable range of the lactic acid is 3% to 5%, and the preferable range of the chelating agent is 0.01% to 2%.

As can be seen from table 6, the detergent sample stock solutions of comparative example 5 and example 9 exhibited acidity and pH values closer to each other, but the detergent sample stock solution of example 9, in which lactic acid was used as a decontamination acid, exhibited stronger detergency; the detergent sample stock solution of comparative example 6, which was neutral, and the detergent sample stock solution of comparative example 7, which was alkaline, were very poor in the cleaning ability for calcium scale, far inferior to the detergent sample stock solution of example 9. In addition, the nasal cavity irritation was significantly higher for comparative examples 5-7 than for example 9.

In summary, according to the bathroom cleaner and the preparation method thereof provided by the embodiments of the present invention, lactic acid is used as a decontamination acid in the cleaner, and the lactic acid is milder in acidity and lower in irritation than other organic acids, so that the prepared cleaner has low irritation, and meanwhile, a chelating agent is introduced into the components of the cleaner, and the chelating agent can effectively complex metal ions such as calcium and magnesium in dirt, and cooperates with the lactic acid to perform decontamination, so that the cleaner has a synergistic descaling effect with the lactic acid, a better descaling effect can be achieved by using a smaller amount of lactic acid, and the decontamination effect of the cleaner can be enhanced. On the other hand, the lactic acid used in the components has antibacterial performance, so that the addition amount of the bactericide in the formula of the detergent can be effectively reduced, and the development cost of the detergent product is saved.

The foregoing is directed to embodiments of the present application and it is noted that numerous modifications and adaptations may be made by those skilled in the art without departing from the principles of the present application and are intended to be within the scope of the present application.

Claims

1. The bathroom cleaner is characterized by comprising the following components in percentage by mass: 2 to 6 percent of lactic acid, 1 to 10 percent of surfactant, 1 to 10 percent of washing assistant, 0.01 to 5 percent of chelating agent, 0.01 to 1 percent of bactericide, 0.01 to 2 percent of preservative, 0.1 to 0.4 percent of essence and the balance of deionized water.

2. The bathroom cleaner according to claim 1, wherein the lactic acid is 3-5% by mass, and the chelating agent is 0.01-2% by mass.

3. The bathroom cleaner as recited in claim 1, wherein said surfactant is one or more of fatty alcohol polyoxyethylene ether, alkylphenol polyoxyethylene ether, and alkyl glycoside.

4. The bathroom cleaner of claim 1, wherein the washing aid is one or more of acetone glycerol, sodium alkyl benzene sulfonate, sodium sulfate, sodium tripolyphosphate, dipropylene glycol methyl ether, propylene glycol, ethylene glycol, and diethylene glycol butyl ether.

5. The bathroom cleaner of claim 1, wherein the chelating agent is one or more of EDTA-2Na, EDTA-4Na, trisodium methylglycinediacetate, tetrasodium glutamate diacetate, sodium dihydrogen phosphate, and sodium pyrophosphate.

6. The bathroom cleaner of claim 1, wherein the bactericide is one or more of dodecyl dimethyl benzyl ammonium chloride, hexadecyl trimethyl ammonium chloride, didecyl dimethyl ammonium chloride, N-didecyl-N-methyl-poly (oxyethyl) ammonium propionate, and sodium benzoate.

7. The bathroom cleaner of claim 1, wherein the preservative is one or both of sodium benzoate and cason.

8. A method of preparing a bathroom cleaner according to any of claims 1-6, comprising the steps of:

9. The method according to claim 7, wherein the time for the uniform stirring in step S30 is 10 to 30 min.

10. The method according to claim 7, wherein the time for the uniform stirring in step S40 is 5 to 20 min.