CN116875400A - Baking soda amino acid surfactant composite powdery cleaning agent - Google Patents

Abstract

This application relates to a baking soda amino acid surfactant compound powdery detergent, which relates to the technical field of detergents and includes the following raw materials in parts by weight: 97-99 parts of baking soda and 1-3 parts of amino acid surfactant; amino acid surface The active agent is sodium lauroyl sarcosinate or sodium lauroyl glutamate. This application mixes baking soda with a small amount of powdery amino acid surfactant, and utilizes the wettability, spreading and emulsifying properties of the surfactant to greatly improve the detergent's ability to remove oil stains, especially pesticide residues, and can also Prevents baking soda from clumping and spreads better when using.

Description

A kind of baking soda amino acid surfactant compound powdery cleanser

Technical field

The present application relates to the technical field of cleaning agents, and in particular to a baking soda amino acid surfactant compound powdery cleaning agent.

Background technique

The component of baking soda is sodium bicarbonate. Sodium bicarbonate is an inorganic compound in the form of white powder that can neutralize acidic substances and adjust the pH value of the solution. It can be used as a reliever to neutralize stomach acid and can also be used to adjust the pH of foods and beverages. The methods for making sodium bicarbonate include combined alkali production method, ammonia-alkali method, Lubulan method, etc. It can also be processed and refined from trona. Baking soda is a naturally derived, safe cleaner that can also be used to wash dishes, fruits and vegetables, do laundry and clean a variety of surfaces.

However, the components of commonly used baking soda cleaners are basically pure sodium bicarbonate or a mixture of sodium bicarbonate with some salt added. After testing, its ability to remove oil stains, especially pesticide residues, is not strong. It is very easy to agglomerate during storage, making it inconvenient to use and difficult to spread.

Contents of the invention

In order to solve the problem that baking soda is easy to agglomerate and has poor ability to remove pesticide residues, this application provides a baking soda amino acid surfactant compound powdery cleaner. Baking soda and amino acid surfactants are used in combination to effectively solve the problem of baking soda. It can solve the clumping problem and can further improve the detergency effect of baking soda, especially the effect of removing pesticide residues.

In the first aspect, this application provides a baking soda amino acid surfactant compound powdery cleanser. The cleanser includes the following raw materials in parts by weight: 97-99 parts of baking soda and 1-3 parts of amino acid surfactant;

The amino acid surfactant is sodium lauroyl sarcosinate or sodium lauroyl glutamate.

Further, the above-mentioned amino acid surfactant is sodium lauroyl glutamate.

Further, the mass ratio of the above-mentioned baking soda and sodium lauroyl glutamate is 99:1.

Further, the purity of the above-mentioned baking soda is ≥99.0%.

Further, the purity of the above-mentioned sodium lauroyl glutamate is ≥95%.

In a second aspect, this application provides a method for preparing a baking soda amino acid surfactant composite powdery cleanser. The preparation method includes:

Dry mix baking soda and amino acid surfactant and stir to prepare a cleaning agent.

Furthermore, a double-conical vertical mixer is used for stirring.

To sum up, this application includes at least one of the following beneficial technical effects:

1. This application mixes baking soda with a small amount of powdered amino acid surfactant, and utilizes the wetting, spreading and emulsifying properties of the amino acid surfactant to greatly improve the detergent's ability to remove oil stains, especially its ability to remove pesticide residues. , it can also prevent baking soda from clumping and spread better when used;

2. The amino acid surfactant used in this application is of natural origin and is weakly acidic. It can neutralize the alkalinity of baking soda and reduce the irritation to the skin. Combining baking soda and amino acid surfactant can improve decontamination and The ability to remove pesticide residues, improve the appearance of the product and make it more convenient to use, while maintaining higher naturalness and safety.

Description of the drawings

Figure 1 is a diagram of the caking test results of the unpackaged baking soda detergent in the embodiment of the present application;

Figure 2 is a diagram of the anti-caking test results of the packaged baking soda detergent in the embodiment of the present application;

Figure 3 is a graph showing the results of the oil-stain removal experiment of scrubbing apples in Experiment 2 of the embodiment of the present application;

Figure 4 is a diagram showing the results of the edible oil removal experiment in Experiment 3 of the embodiment of the present application;

Figure 5 is a graph showing the results of the pesticide residue removal experiment in Experiment 4 of the embodiment of the present application.

Detailed ways

The present application will be further described in detail below in conjunction with examples. It should be noted that if no specific conditions are specified in the following examples, the conditions should be followed according to conventional conditions or conditions recommended by the manufacturer; unless otherwise specified, the raw materials used in the following examples can be obtained from commercially available sources.

This application provides a baking soda amino acid surfactant compound powdery cleanser:

The chemical component of baking soda is sodium bicarbonate. It is a single-component, natural-source detergent that can be used to clean tableware, infant milk products, items, fruits and vegetables, laundry and other surfaces. It is recognized by consumers as safe and non-toxic. Toxic cleaning products, baking soda cleaners currently on the market are basically filled directly with sodium bicarbonate raw materials or a mixture with a small amount of salt added. The main working principle of baking soda is that the substance becomes weakly alkaline when dissolved in water, and can react with grease to saponify it to remove grease stains. However, due to the weak alkalinity of baking soda, simple baking soda has a weak ability to remove grease. According to the oil removal rate method in dishwashing detergent GB/T9985-2022, the oil removal rate of baking soda with a concentration of 5% is far lower than The oil removal rate of dishwashing detergent is 0.2%. Similarly, adding a small amount of salt to baking soda cannot increase its oil removal ability. Generally, baking soda needs to be used in combination with conventional dishwashing detergents to obtain relatively good oil removal ability. Dishwashing detergents contain surfactants, which have a significant effect on grease removal.

However, when producing detergents, it is not only required that the detergent has high detergency against grease, but also the ability to remove pesticides on fruits and vegetables. The main component of pesticide residues on fruits and vegetables is an oily component that is insoluble in water. It is sprayed on fruits and vegetables and has the effect of killing pests by remaining on the surface of fruits and vegetables. But this brings about pesticide residues. Oil-soluble ingredients cannot be washed away by water alone. Therefore, a detergent that can remove oily substances needs to be added to help remove pesticide residues.

If you use dishwashing detergent to wash fruits and vegetables, the chemical components may remain on the surface of the fruits and vegetables and cannot be completely removed even if they are rinsed. These chemicals may pose potential risks to human health. Not only that, some ingredients in dishwashing detergents may be toxic or allergic, affecting the quality and safety of fruits and vegetables. Consuming these residues may cause indigestion, allergic reactions, or other health problems. Chemical ingredients in dishwashing detergents can also destroy nutrients in fruits and vegetables, resulting in a loss of nutritional value. Therefore, there are currently some food-grade dishwashing detergents specifically used for washing fruits and vegetables on the market, but they are expensive and have poor economic applicability. Baking soda is cheap and has a certain ability to remove oil, so baking soda has become the most commonly used detergent for cleaning fruits and vegetables.

However, the degreasing effect of baking soda is limited and is not enough to remove all pesticide residues. The inventor discovered that oil and water are two mutually incompatible liquids, which are divided into two layers in the container, with the oil with low density in the upper layer and the water with high density in the lower layer. If appropriate surfactants are added to baking soda, the oil will be dispersed in water to form an emulsion under vigorous stirring. The emulsification principle of surfactant is then used to make water-insoluble oil miscible with water under the action of external force, so that oil stains can be removed, thereby increasing baking soda's ability to remove oil stains.

Based on the above problems, this application chose to use baking soda in combination with a small amount of powdered amino acid surfactant. Through the wettability, spreadability, and emulsification of the amino acid surfactant, the ability to remove oil stains and pesticide residues can be greatly improved; and Adding amino acid surfactants also prevents baking soda from clumping and improves product appearance.

Amino acid surfactants are amino acid (such as glutamic acid, glycine, etc.) salts (sodium salt, potassium salt, triethanolamine salt) of coconut oil (or laurel oil or palm oil) with foaming and detergent capabilities. Amino acid surfactants are of natural origin and are weakly acidic. They can neutralize the alkalinity of baking soda and reduce irritation to the skin. They can also improve the ability to remove dirt and pesticide residues while maintaining naturalness and safety. On the basis of this, we further improve the appearance of the product and make it more convenient to use. Compared with conventional dish detergents and fruit and vegetable detergents, this product has natural raw materials, less foam, lower price, easy rinsing, no residue, safer, simple production and low energy consumption.

The above-mentioned amino acid surfactant can be sodium lauroyl sarcosinate or sodium lauroyl glutamate. Preferably, the amino acid surfactant is sodium lauroyl glutamate. Sodium lauroyl glutamate has good cleaning ability and can effectively remove grease and stains. It has good compatibility with skin and will not cause adverse reactions such as irritation, dryness or allergies; it can stabilize foam, allowing the baking soda detergent to produce rich and delicate foam, improving the use experience; it is biodegradable, environmentally friendly, and will not cause harmful effects on the skin. Contamination of water bodies and ecosystems. The most important thing is that the amino acid surfactant can be evenly mixed with baking soda without destroying the natural nature of baking soda. It can not only prevent agglomeration, but also improve baking soda’s decontamination and pesticide residue removal effect. . The mass ratio of baking soda and sodium lauroyl glutamate is 99:1. Baking soda is food-grade baking soda with a purity of ≥99.0%, and the quality complies with the national food safety standards (GB1886.2-2015). The amino acid surfactant is free-flowing sodium lauroyl glutamate, and the active ingredient content is ≥95%.

Example

Example 1

The raw materials of baking soda amino acid surfactant compound powder detergent include: 99Kg of food-grade baking soda with a purity of 99% and 1Kg of sodium lauroyl glutamate with a purity of 98%.

The preparation method of baking soda amino acid surfactant compound powdery cleanser includes:

1. Add 99Kg of baking soda into the double-conical vertical mixer, and then add 1Kg of powdered sodium lauroyl glutamate into the double-conical vertical mixer, so that the baking soda and sodium lauroyl glutamate are placed at the bottom. on baking soda;

2. Then start the double conical vertical mixer. The rotating ribbon will lift or throw the material in the mixing chamber by moving in a bottom-up circle along the wall. When the baking soda and sodium lauroyl glutamate reach the center When it reaches the highest position or the highest point, it moves downward by its own weight, using mechanical force and gravity to evenly mix the two components;

3. After stirring for 2 minutes, close the double-cone vertical mixer, take out the materials and obtain the baking soda amino acid surfactant compound powdery detergent (hereinafter referred to as the baking soda detergent).

Example 2

The difference between Example 2 and Example 1 is that the types of surfactants used are different, as shown in Table 2 below.

Table 2. Surfactant Types

Surfactant type Example 1 Sodium lauroyl glutamate Example 2 Sodium lauroyl sarcosinate Comparative example 1 - Comparative example 2 SDBS Comparative example 3 Sodium alpha-alkenesulfonate Comparative example 4 Sodium dodecyl sulfate

To examine the effects of adding different types of surfactants on the appearance of baking soda cleaners, the cleaners prepared in Examples 1-2 and Comparative Examples 1-4 were placed in an environment of 37°C and 85% relative humidity, and left naked. After 24 hours, observe the agglomeration of the detergent. The test results are shown in Table 3 below.

Table 3. Appearance of detergents

According to Table 1 and Table 2, it can be obtained that the combination of baking soda and sodium lauroyl glutamate in Example 1 effectively solves the problem of agglomeration when the baking soda detergent is left bare, improves the appearance of the detergent, and makes it more durable during use. Easy to spread. The amino acid surfactant used in Example 2 is sodium lauroyl sarcosinate, which also has an anti-caking effect, but its irritation is slightly stronger than sodium lauroyl glutamate, so the amino acid surfactant is preferably lauroyl. Monosodium glutamate.

The component of the cleaning agent prepared in Comparative Example 1 is only baking soda. Refer to Figure 1 (the left picture is the cleaning agent prepared in Comparative Example 1, and the right picture is the baking soda cleaning agent prepared in Example 1). The baking soda in the above environment There will be obvious agglomerations after being placed naked, and the agglomerated particles are very large, making it difficult to spread during use. The baking soda detergent prepared in Example 1 has almost no agglomeration. The appearance of the baking soda detergent is uniform and dispersed powder. Therefore, adding sodium lauroyl glutamate can effectively improve the agglomeration of baking soda. problem and improve its anti-caking ability.

The surfactants used in Comparative Examples 2-4 are commonly used in dishwashing detergents and help enhance the detergency of detergents. Among them, Comparative Example 1 uses powdered sodium dodecyl benzene sulfonate, which has several specifications of 60%, 70%, and more than 70%. However, it is easy to absorb moisture and agglomerate. After mixing with baking soda, Does not prevent baking soda from clumping. Moreover, this surfactant is derived from petroleum, which will destroy the natural nature of baking soda detergent, so it is not suitable.

The sodium α-alkenesulfonate (powdered AOS) used in Comparative Example 2 has an active ingredient content of about 92%. It is easy to agglomerate itself and has no effect of preventing agglomeration. Moreover, this powdered AOS is also derived from petroleum, which will destroy the natural nature of baking soda detergent, so it is not suitable.

The sodium lauryl sulfate (powdered K12) used in Comparative Example 2 has an active ingredient of about 92%. It has good fluidity and can prevent agglomeration, but the pH value of K12 (1% solution) is between 9-11 It is alkaline. When mixed with baking soda, it will increase the alkalinity of the baking soda detergent and increase the irritation to the skin. It is also derived from petroleum, which will destroy the natural nature of baking soda cleaners, so it is not suitable.

Example 3

The difference between Example 3 and Example 1 is that the dosage of baking soda and sodium lauroyl glutamate is different, see Table 4.

Table 4. Dosage of baking soda and sodium lauroyl glutamate

According to Table 4, it can be seen that in Comparative Example 5, the proportion of amino acid surfactants is less than that of Examples 1 and 2. Due to the reduction of amino acid surfactants, the anti-caking effect and decontamination performance of the baking soda cleaner will be reduced. weaken. In Comparative Example 6, if the amount of amino acid surfactant exceeds 3%, the foam will increase during washing, and the low-foaming and easy-to-rinse characteristics of the baking soda cleaning agent will be lost. Moreover, when the amount of amino acid surfactant is too high, it will prevent caking. The effect becomes worse. Amino acid surfactant and baking soda are easy to agglomerate after mixing and stirring, which is not conducive to production. Therefore, the optimal ratio of baking soda to amino acid surfactant is 99:1.

Performance experiments and results

experiment one

Investigate the anti-caking properties of packaged baking soda and "baking soda + amino acid surfactant".

Put the baking soda cleaning agent prepared in Example 1 and the baking soda cleaning agent prepared in Example 1 into different glass bottles with lids, and divide them into control glass bottles and experimental glass bottles. All were placed in a constant temperature and humidity box at 37°C and 85RH%, left for 24 hours, and the agglomeration phenomenon was observed. The experimental results are shown in Figure 2 (the left picture is the control glass bottle, the right picture is the experimental glass bottle).

According to Figure 2, it can be seen that there is no agglomeration when adding baking soda detergent with amino acid surfactant (i.e., experimental glass bottle), while pure baking soda agglomerates (i.e., control glass bottle), and there is obvious agglomeration. It can be obtained by Adding amino acid surface activity can solve the caking problem of baking soda and improve its anti-caking properties.

Experiment 2

Investigate the effect of baking soda and "baking soda + sodium lauroyl glutamate" on the surface of apples after directly scrubbing them.

Use the baking soda detergent (pure baking soda) prepared in Comparative Example 1 alone to scrub the apples, and use the baking soda detergent (99% baking soda + 1% sodium lauroyl glutamate) prepared in Example 1 to scrub the apples. Experiment The results are shown in Figure 3 (the two pictures arranged vertically on the left are apples washed with baking soda, and the picture arranged vertically on the right are apples washed with "baking soda + sodium lauroyl glutamate").

According to Figure 3, it can be seen that pure baking soda is difficult to rub away. After washing with baking soda and rinsing, there are still obvious water droplets on the apples that cannot spread, indicating that there is wax that has not been removed. The baking soda detergent added with sodium lauroyl glutamate is obviously easy to spread, rub and apply evenly. After washing and rinsing with the baking soda detergent, no residual water droplets can be seen on the apples, indicating that the wax has been completely removed. . Therefore, it can be concluded that compared with the baking soda cleaner prepared in Comparative Example 1, the oil removal ability of the baking soda cleaner prepared in Example 1 is significantly improved.

Experiment 3

Examine the ability of baking soda and "baking soda + sodium lauroyl glutamate" to remove oil (edible oil).

experimental method:

1. Add 5 drops of olive oil + 1g of baking soda detergent prepared in Comparative Example 1 + 5ml of tap water to a clean aluminum plate respectively, shake the aluminum plate to dissolve and contact it for about 2 minutes, and then rinse the aluminum plate with tap water.

2. Add 5 drops of olive oil + 2g of the baking soda detergent prepared in Example 1 + 5ml of tap water to a clean aluminum plate respectively, shake the aluminum plate to allow it to dissolve and contact for about 2 minutes, and then rinse the aluminum plate with tap water.

The experimental results are shown in Figure 4 (the two aluminum disks arranged vertically in the left picture are aluminum disks cleaned with pure baking soda, and the two aluminum disks arranged vertically in the right picture are aluminum disks cleaned with "baking soda + amino acid surfactant"). In "1", before rinsing, pure baking soda is placed alone in an aluminum pan. The oil is not emulsified. After rinsing, you can see that there are still obvious water droplets that cannot spread, indicating that there is unwashed oil.

In "2", before rinsing, water and oil are emulsified. After rinsing, there are no water beads on the aluminum plate, indicating that the oil has been washed away. It can be seen that the ability to remove oil stains is significantly improved after adding amino acid surfactant to baking soda.

Experiment 4

Examine the ability of baking soda and "baking soda + sodium lauroyl glutamate" to remove pesticide residues.

Experimental principle: Use radar insecticide as the source of pesticide residues - the total active ingredients of radar insecticide are 0.16%: cypermethrin 0.1%, propargylmethrin 0.03%, and ethinylmethrin 0.03%. The composition of this pesticide is similar to that of the pesticide emulsion used in the pesticide residue removal experiment in fruit and vegetable washing GB2491-2009. Therefore, the pesticide is dripped into the water, and then a certain amount of the experimental sample is added, shaken evenly, and then allowed to stand to observe the pesticide. The emulsification condition of the oil layer. If the oil and water layers are obvious, it means that the sample cannot emulsify pesticides, that is, the pesticide residue removal effect is poor; if the added sample can emulsify pesticides well, it means that the sample has a good pesticide residue removal effect.

Experimental steps:

Take three 300ml beakers, put 50ml of tap water into each beaker, and add the same number of drops of pesticide into each beaker. No sample is added to the first cup, which is the blank group. Add the same number of drops to the other two cups. Add the same amount of the pure baking soda detergent prepared in Comparative Example 1 and the baking soda detergent prepared in Example 1 respectively, shake the cup, and then let it stand to observe the emulsification situation.

The experimental results are shown in Figure 5. In Figure 5, Figure 1 on the left is the beaker of the blank group, Figure 2 on the left is the beaker added with the baking soda detergent prepared in Comparative Example 1, and Figure 1 on the right is the beaker added with the baking soda detergent prepared in Example 1. beaker, the experimental results are divided into three parts:

1. The first cup "water + insecticide": water and oil are not emulsified, and the oil layer is obvious after standing;

2. The second cup "water + pesticide + pure baking soda": the water layer is slightly reduced, indicating that a small amount of pesticide is emulsified, proving that baking soda has an emulsifying effect on oil;

3. The third cup "water + insecticide + 99% baking soda + 1% sodium lauroyl glutamate": the water layer is significantly reduced, and the water and oil are emulsified together, indicating that after baking soda is added with amino acid surfactant, it can Significantly improve the emulsification effect on pesticides. Therefore, it can be concluded that the pesticide residue removal ability of baking soda can be significantly improved by adding amino acid surfactant to baking soda.

In summary: This application uses baking soda in combination with an amino acid surfactant, which not only solves the problem of baking soda caking, but also effectively improves the decontamination effect of baking soda, especially the effect of removing pesticide residues. The appearance of the product is improved, it is more convenient to use and spread, and it can maintain higher naturalness and safety.

The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application shall be covered by the scope of protection of the present application. Inside.

Claims (8)

1. The baking soda amino acid surfactant composite powdery cleaning agent is characterized by comprising the following raw materials in parts by weight:

97-99 parts of baking soda and 1-3 parts of amino acid surfactant;

the amino acid surfactant is sodium lauroyl sarcosinate or sodium lauroyl glutamate.

2. The baking soda amino acid surfactant composite powder detergent according to claim 1, characterized in that: the amino acid surfactant is sodium lauroyl glutamate.

3. The baking soda amino acid surfactant composite powder detergent according to claim 2, characterized in that: the mass ratio of the baking soda to the sodium lauroyl glutamate is 99:1.

4. the baking soda amino acid surfactant composite powder detergent according to claim 1, characterized in that: the purity of the baking soda is more than or equal to 99.0 percent.

5. The baking soda amino acid surfactant composite powder detergent according to claim 2, characterized in that: the purity of the lauroyl sodium glutamate is more than or equal to 95 percent.

6. The method for preparing the baking soda amino acid surfactant composite powder detergent according to any one of claims 1 to 5, wherein the preparation method comprises the following steps:

and dry-mixing the baking soda and the amino acid surfactant, and stirring to obtain the cleaning agent.

7. The method for preparing the baking soda amino acid surfactant composite powder detergent according to claim 6, which is characterized in that: the stirring time is 1-3min.

8. The method for preparing the baking soda amino acid surfactant composite powder detergent according to claim 6, which is characterized in that: a biconical vertical mixer was used during the stirring.