A low-foaming active agent for beverage container cleaning and a method for its preparation

Abstract

The application relates to the technical field of cleaning agents, and particularly discloses a low-foaming active agent for beverage container cleaning and a preparation method thereof.The low-foaming active agent for beverage container cleaning is prepared from the following raw materials in parts by weight: 10-20 parts of sodium hydroxide, 15-28 parts of alkyl polyglycoside, 27-50 parts of octanol polyoxyethylene ether, 15-25 parts of fatty alcohol sulfonate, 5-12 parts of a stabilizer and 60-80 parts of water; the preparation method of the low-foaming active agent comprises the following steps: S1, adding sodium hydroxide and the stabilizer into water, stirring until completely dissolved to obtain a mixed solution; S2, adding alkyl polyglycoside, octanol polyoxyethylene ether and fatty alcohol sulfonate into the mixed solution, stirring until completely dissolved to obtain the low-foaming active agent for beverage container cleaning.The low-foaming active agent prepared by the application can effectively reduce the generation of foam, accelerate the disappearance of foam, and significantly improve the cleaning ability and efficiency of the cleaning agent.

Description

Technical Field

[0001] This application relates to the field of cleaning agent technology, and in particular to a low-foaming surfactant for cleaning beverage containers and a method for preparing the same. Background Technology

[0002] Food is the paramount necessity of the people, and food safety is the first priority. With economic development and improved living standards, food safety has received increasing attention. Food safety includes not only the quality and safety of the food itself, but also the hygiene of materials such as machinery, packaging, and tableware that come into direct contact with food during production and consumption.

[0003] The dirt generated during the processing and recycling of beverage containers has a complex structure, consisting of proteins, greases, and minerals. Proteins can generally be washed away under alkaline conditions, while greases and minerals require chelating agents, dispersants, and surfactants under alkaline conditions to be thoroughly cleaned. However, currently available cleaning agents often fail to achieve complete cleaning due to the presence of foam during the rinsing process. This foam separation between the cleaning agent and the container wall prevents sufficient contact, resulting in poor cleaning effectiveness and difficulty in thoroughly removing the dirt. Summary of the Invention

[0004] In order to solve at least one of the above-mentioned technical problems and to develop a low-foaming, fast-defoaming and effective cleaning agent, this application provides a low-foaming agent for cleaning beverage containers and its preparation method.

[0005] On the one hand, the low-foaming surfactant for cleaning beverage containers provided in this application comprises, by weight, 10-20 parts of sodium hydroxide, 15-28 parts of alkyl glycoside, 27-50 parts of octanol polyoxyethylene ether, 15-25 parts of fatty alcohol sulfonate, 5-12 parts of stabilizer, and 60-80 parts of water.

[0006] By adopting the above technical solution, the alkyl glycoside used in this application is a natural and environmentally friendly surfactant that is harmless to the environment, will not contaminate food, has excellent alkali compatibility and extremely low foaming, and can effectively inhibit foam generation during beverage container cleaning, thereby improving cleaning efficiency. It also has excellent solubilizing effect, which can increase the solubility of other surfactants such as octanol polyoxyethylene ether and fatty alcohol sulfonates in high-alkali systems, thereby significantly enhancing detergency and improving cleaning efficiency. Octanol polyoxyethylene ether has good wettability and low foaming in high-alkali systems, and alkyl glycosides have good compatibilizing effect on it, thus possessing excellent detergency. Fatty alcohol sulfonates have low surface tension, excellent wetting properties and rapid defoaming ability, thereby enhancing the cleaning efficiency of the detergent. The low-foaming surfactant for beverage container cleaning prepared by the compatibility of the raw materials of this application has excellent cleaning effect when applied to the cleaning of beverage containers, and can effectively inhibit foam generation, rapidly defoam, and improve cleaning efficiency.

[0007] Optionally, the low-foaming surfactant for cleaning beverage containers comprises, by weight, the following raw materials: 12-17 parts sodium hydroxide, 17-25 parts alkyl glycoside, 30-45 parts octanol polyoxyethylene ether, 18-22 parts fatty alcohol sulfonate, 8-10 parts stabilizer, and 65-75 parts water.

[0008] Optional, the stabilizer is sodium polyacrylate.

[0009] By adopting the above technical solution, sodium polyacrylate has the functions of dispersing, descaling, stabilizing and emulsifying. It can emulsify grease and dirt, making them easier to encapsulate and rinse away, which helps to improve the cleaning effect and cleaning efficiency.

[0010] Optionally, the alkyl glycoside is a C6-14 alkyl glycoside.

[0011] Optionally, the C6-14 alkyl glycoside is one of APG06, APG08, APG0810, APG0814, and APG1214.

[0012] Preferably, the alkyl glycoside is one of APG06, APG08, and APG0810.

[0013] By adopting the above technical solution, this application uses short-chain alkyl glycosides, which produce less foam and faster defoaming than long-chain alkyl glycosides, thus having a better defoaming effect and improving cleaning efficiency.

[0014] Optionally, the weight ratio of the alkyl glycoside to octanol polyoxyethylene ether is 1:(1.6-2.2).

[0015] By adopting the above technical solution, this application combines alkyl glycosides that are resistant to high alkali and low foaming with octanol polyoxyethylene ether that has good wettability. This combination results in good solubility, excellent cleaning power, and can significantly improve cleaning ability and efficiency.

[0016] Optionally, the fatty alcohol sulfonate is one or both of sodium oleyl sulfonate and sodium methyl oleate sulfonate.

[0017] Optionally, the fatty alcohol sulfonate is sodium oleyl sulfonate and sodium methyl oleate sulfonate, and the weight ratio of sodium oleyl sulfonate to sodium methyl oleate sulfonate is (0.8-1.2):1.

[0018] By adopting the above technical solution, this application uses two different fatty alcohol sulfonates in combination, which can effectively enhance defoaming ability, reduce the interference of foam on cleaning effect, and also enhance cleaning ability.

[0019] Secondly, this application provides a method for preparing the aforementioned low-foaming surfactant for cleaning beverage containers, comprising the following steps:

[0020] S1. Add sodium hydroxide and stabilizer to water and stir until completely dissolved to obtain a mixture;

[0021] S2. Add alkyl glycoside, octyl alcohol polyoxyethylene ether, and fatty alcohol sulfonate to the mixture in sequence and stir until completely dissolved to obtain the low-foaming surfactant for cleaning beverage containers.

[0022] By adopting the above technical solution, the preparation method of this application is simple to operate, has a short production cycle, and is suitable for large-scale production.

[0023] Thirdly, this application provides the application of the aforementioned low-foaming surfactant for cleaning beverage containers in the field of cleaning agents.

[0024] In summary, the present invention has at least one of the following beneficial technical effects:

[0025] 1. The alkyl glycoside used in this application is a natural and environmentally friendly surfactant that is harmless to the environment, will not contaminate food, has excellent alkali compatibility and extremely low foaming, and can effectively inhibit foam generation during beverage container cleaning, thereby improving cleaning efficiency. It also has excellent solubilizing effect, which can increase the solubility of other surfactants such as octanol polyoxyethylene ether and fatty alcohol sulfonates in high-alkali systems, thereby significantly enhancing detergency and improving cleaning efficiency. Octanol polyoxyethylene ether has good wettability and low foaming in high-alkali systems, and alkyl glycosides have good compatibilizing effect on it, resulting in excellent detergency. Fatty alcohol sulfonates have low surface tension, excellent wetting properties and rapid defoaming ability, thereby enhancing the cleaning efficiency of the detergent. The low-foaming surfactant for beverage container cleaning prepared by the compatibility of the raw materials in this application has excellent cleaning effect when applied to the cleaning of beverage containers, and can effectively inhibit foam generation, rapidly defoam, and improve cleaning efficiency.

[0026] 2. This application uses short-chain alkyl glycosides, which produce less foam and defoam faster than long-chain alkyl glycosides, thus exhibiting better defoaming effects and improving cleaning efficiency. By compounding high-alkali-resistant, low-foaming alkyl glycosides with octyl alcohol polyoxyethylene ether, which has good wetting properties, good solubility and excellent cleaning power are achieved, significantly improving cleaning ability and efficiency. This application uses two different fatty alcohol sulfonates, which effectively enhance defoaming ability, reduce foam interference with cleaning effect, and also enhance cleaning power. This application uses sodium polyacrylate as a stabilizer. Sodium polyacrylate has dispersing, descaling, stabilizing, and emulsifying effects, which can emulsify grease and dirt, making them easier to encapsulate and rinse away, thus helping to improve cleaning effect and efficiency.

[0027] 3. The preparation method of this application is simple to operate, has a short production cycle, and is suitable for large-scale production. Detailed Implementation

[0028] The present application will be further described in detail below with reference to the embodiments.

[0029] This application designs a low-foaming surfactant for cleaning beverage containers. By weight, its raw material composition includes: 10-20 parts sodium hydroxide, 15-28 parts alkyl glycoside, 27-50 parts octanol polyoxyethylene ether, 15-25 parts fatty alcohol sulfonate, 5-12 parts stabilizer, and 60-80 parts water.

[0030] The low-foaming surfactant for cleaning beverage containers in this application is prepared by the following method, including the following steps:

[0031] S1. Add sodium hydroxide and stabilizer to water and stir until completely dissolved to obtain a mixture;

[0032] S2. Add alkyl glycoside, octyl alcohol polyoxyethylene ether, and fatty alcohol sulfonate to the mixture in sequence and stir until completely dissolved to obtain the low-foaming surfactant for cleaning beverage containers.

[0033] The low-foaming surfactant of this application for cleaning beverage containers can be used in the field of cleaning agents.

[0034] The alkyl glycoside used in this application is a natural and environmentally friendly surfactant that is harmless to the environment, will not contaminate food, has excellent alkali compatibility and extremely low foaming, and can effectively inhibit foam generation during beverage container cleaning, thereby improving cleaning efficiency. It also has excellent solubilizing effects, increasing the solubility of other surfactants such as octanol polyoxyethylene ether and fatty alcohol sulfonates in high-alkali systems, thus significantly enhancing detergency and improving cleaning efficiency. Octanol polyoxyethylene ether has good wetting properties and low foaming in high-alkali systems, and the alkyl glycoside has good compatibilizing effect on it, resulting in excellent detergency. Fatty alcohol sulfonates have low surface tension, excellent wetting properties, and rapid defoaming ability, thereby enhancing the cleaning efficiency of the detergent. The low-foaming surfactant for beverage container cleaning prepared by the formulation of the raw materials in this application has excellent cleaning effect when applied to the cleaning of beverage containers, and can effectively inhibit foam generation, rapidly defoam, and improve cleaning efficiency. Specific Implementation

[0036] Alkyl glycosides: APG06, APG08, APG0810, APG0814, and APG1214 were all purchased from Linyi Lusen Chemical Co., Ltd.

[0037] Octyl alcohol polyoxyethylene ether: Haian Petrochemical Plant, Jiangsu Province;

[0038] Sodium polyacrylate: CAS No.: 9003-04-7, molecular weight: 10,000-30,000;

[0039] Sodium oleyl sulfonate: Sodium oleyl sulfonate is obtained by reacting oleyl alcohol as raw material, sodium bisulfite as sulfonating agent, and tert-butyl peroxide and triethylamine as catalytic system at 40°C for 20 h.

[0040] Sodium methyl oleate sulfonate: Sodium methyl oleate sulfonate is obtained by reacting oleyl alcohol methyl ester as raw material, sodium bisulfite as sulfonating agent, and tert-butyl peroxide and triethylamine as catalytic system at 40°C for 20 h.

[0041] Examples 1-5

[0042] Example 1

[0043] A low-foaming surfactant for cleaning beverage containers, by weight, comprises: 10 parts sodium hydroxide, 15 parts alkyl glycoside, 27 parts octanol polyoxyethylene ether, 15 parts fatty alcohol sulfonate, 5 parts stabilizer, and 60 parts deionized water; wherein the alkyl glycoside is APG06, the fatty alcohol sulfonate is sodium oleyl sulfonate, and the stabilizer is sodium polyacrylate.

[0044] The method for preparing the low-foaming surfactant for cleaning beverage containers includes the following steps:

[0045] S1. Add sodium hydroxide and stabilizer to deionized water and stir until completely dissolved to obtain a mixture.

[0046] S2. Add alkyl glycoside, octyl alcohol polyoxyethylene ether, and fatty alcohol sulfonate to the mixture in sequence and stir until completely dissolved to obtain a low-foaming surfactant.

[0047] Example 2

[0048] A low-foaming surfactant for cleaning beverage containers, by weight, comprises: 12 parts sodium hydroxide, 17 parts alkyl glycoside, 30 parts octanol polyoxyethylene ether, 18 parts fatty alcohol sulfonate, 8 parts stabilizer, and 65 parts deionized water; wherein the alkyl glycoside is APG06, the fatty alcohol sulfonate is sodium oleyl sulfonate, and the stabilizer is sodium polyacrylate.

[0049] The preparation method of the low-foaming surfactant for cleaning beverage containers is the same as that in Example 1.

[0050] Example 3

[0051] A low-foaming surfactant for cleaning beverage containers, by weight, comprises: 15 parts sodium hydroxide, 20 parts alkyl glycoside, 36 parts octanol polyoxyethylene ether, 20 parts fatty alcohol sulfonate, 9 parts stabilizer, and 70 parts deionized water; wherein the alkyl glycoside is APG06, the fatty alcohol sulfonate is sodium oleyl sulfonate, and the stabilizer is sodium polyacrylate.

[0052] The preparation method of the low-foaming surfactant for cleaning beverage containers is the same as that in Example 1.

[0053] Example 4

[0054] A low-foaming surfactant for cleaning beverage containers, by weight, comprises the following raw materials: 17 parts sodium hydroxide, 25 parts alkyl glycoside, 45 parts octanol polyoxyethylene ether, 22 parts fatty alcohol sulfonate, 10 parts stabilizer, and 75 parts deionized water; wherein the alkyl glycoside is APG06, the fatty alcohol sulfonate is sodium oleyl sulfonate, and the stabilizer is sodium polyacrylate.

[0055] The preparation method of the low-foaming surfactant for cleaning beverage containers is the same as that in Example 1.

[0056] Example 5

[0057] A low-foaming surfactant for cleaning beverage containers, by weight, comprises: 20 parts sodium hydroxide, 28 parts alkyl glycoside, 50 parts octanol polyoxyethylene ether, 25 parts fatty alcohol sulfonate, 12 parts stabilizer, and 80 parts deionized water; wherein the alkyl glycoside is APG06, the fatty alcohol sulfonate is sodium oleyl sulfonate, and the stabilizer is sodium polyacrylate.

[0058] The preparation method of the low-foaming surfactant for cleaning beverage containers is the same as that in Example 1.

[0059] Comparative Examples 1-2

[0060] Comparative Example 1

[0061] The difference between this comparative example and Example 1 is that this comparative example does not add short-chain alkyl glycosides when preparing the low-foaming surfactant for cleaning beverage containers.

[0062] Comparative Example 2

[0063] The difference between this comparative example and Example 1 is that this comparative example does not add octanol polyoxyethylene ether when preparing the low-foaming surfactant for cleaning beverage containers.

[0064] Examples 6-9

[0065] Example 6

[0066] The difference between this embodiment and Embodiment 3 is that the alkyl glycoside used is APG08.

[0067] Example 7

[0068] The difference between this embodiment and Embodiment 3 is that the alkyl glycoside used is APG0810.

[0069] Example 8

[0070] The difference between this embodiment and Embodiment 3 is that the alkyl glycoside used is APG0814.

[0071] Example 9

[0072] The difference between this embodiment and Embodiment 3 is that the alkyl glycoside used is APG1214.

[0073] Examples 10-12

[0074] Example 10

[0075] The difference between this embodiment and Embodiment 3 is that the total weight of alkyl glycoside and octanol polyoxyethylene ether is 56 parts, and the weight ratio of alkyl glycoside and octanol polyoxyethylene ether is 1:1.6.

[0076] Example 11

[0077] The difference between this embodiment and Embodiment 3 is that the total weight of alkyl glycoside and octanol polyoxyethylene ether is 56 parts, and the weight ratio of alkyl glycoside and octanol polyoxyethylene ether is 1:2.

[0078] Example 12

[0079] The difference between this embodiment and Embodiment 3 is that the total weight of alkyl glycoside and octanol polyoxyethylene ether is 56 parts, and the weight ratio of alkyl glycoside to octanol polyoxyethylene ether is 1:2.2.

[0080] Examples 13-16

[0081] Example 13

[0082] The difference between this embodiment and Embodiment 11 is that the fatty alcohol sulfonate is sodium methyl oleate sulfonate.

[0083] Example 14

[0084] The difference between this embodiment and Embodiment 11 is that the total weight of the fatty alcohol sulfonate remains unchanged, and the fatty alcohol sulfonate is sodium oleyl sulfonate and sodium methyl oleate sulfonate in a weight ratio of 0.8:1.

[0085] Example 15

[0086] The difference between this embodiment and Embodiment 11 is that the total weight of the fatty alcohol sulfonate remains unchanged, and the fatty alcohol sulfonate is sodium oleyl sulfonate and sodium methyl oleate sulfonate in a weight ratio of 1:1.

[0087] Example 16

[0088] The difference between this embodiment and Embodiment 11 is that the total weight of the fatty alcohol sulfonate remains unchanged, and the fatty alcohol sulfonate is sodium oleyl sulfonate and sodium methyl oleate sulfonate in a weight ratio of 1.2:1.

[0089] Experimental testing

[0090] This experiment will test the foaming properties and detergency properties of the low-foaming surfactants prepared in Examples 1-16 and Comparative Examples 1-2.

[0091] 1. Foaming performance: Add the low-foaming surfactant to be tested to the reactor and keep it at a constant temperature (60±2℃). Add the dirt prepared according to the method described in "QBT 4314-2012 Alkaline Cleaning Agents for Food Tools and Industrial Equipment" to the reactor. Stir at a constant speed for 1 minute and then stop stirring. Record the foam height after stopping stirring and the foam height one minute after stopping stirring. Keep the conditions consistent for each test. The test results are shown in Table 1.

[0092] Table 1. Results of Foam Performance Tests

[0093]

[0094]

[0095] 2. Detergency performance: The detergency rate was determined according to the method described in "QBT 4314-2012 Alkaline Cleaning Agents for Food Tools and Industrial Equipment". The test results are shown in Table 2.

[0096] Table 2 Results of the Detergency Performance Test

[0097]

[0098]

[0099] Results Analysis

[0100] Based on Examples 1-16, Comparative Examples 1-2, and Tables 1 and 2, it can be seen from Examples 1-5 and Comparative Examples 1-2 that the low-foaming surfactant prepared in this application produces less foam, the foam disappears faster, and the cleaning effect is better when applied to the cleaning of beverage containers.

[0101] As can be seen from Examples 6-9 and Example 3, using short-chain alkyl glycosides results in less foam, faster defoaming, and better final cleaning effect compared to long-chain alkyl glycosides.

[0102] As can be seen from Examples 10-12 and Example 3, when alkyl glycosides and octanol polyoxyethylene ether are compounded in a weight ratio of 1:(1.6-2.2), less foam is produced, the foam disappears faster, and the cleaning effect is better.

[0103] As can be seen from Examples 13-16 and Example 11, when the fatty alcohol sulfonate is sodium oleyl sulfonate and sodium methyl oleate sulfonate, and the weight ratio of sodium oleyl sulfonate to sodium methyl oleate sulfonate is (0.8-1.2):1, less foam is produced, the foam disappears faster, and the cleaning effect is better.

[0104] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A low-foaming surfactant for cleaning beverage containers, characterized in that, By weight, its raw material composition includes: 10-20 parts sodium hydroxide, 15-28 parts alkyl glycoside, 27-50 parts octanol polyoxyethylene ether, 15-25 parts fatty alcohol sulfonate, 5-12 parts stabilizer, and 60-80 parts water. The stabilizer is sodium polyacrylate; The fatty alcohol sulfonate is sodium oleyl sulfonate and sodium methyl oleate sulfonate, and the weight ratio of sodium oleyl sulfonate and sodium methyl oleate sulfonate is (0.8-1.2):

1.

2. The low-foaming surfactant for cleaning beverage containers according to claim 1, characterized in that, By weight, its raw material composition includes: 12-17 parts sodium hydroxide, 17-25 parts alkyl glycoside, 30-45 parts octanol polyoxyethylene ether, 18-22 parts fatty alcohol sulfonate, 8-10 parts stabilizer, and 65-75 parts water.

3. The low-foaming surfactant for cleaning beverage containers according to claim 1, characterized in that, The alkyl glycoside is a C6-14 alkyl glycoside.

4. The low-foaming surfactant for cleaning beverage containers according to claim 3, characterized in that, The C6-14 alkyl glycoside is one of APG06, APG08, APG0810, APG0814, and APG1214.

5. The low-foaming surfactant for cleaning beverage containers according to claim 1, characterized in that, The weight ratio of the alkyl glycoside to octanol polyoxyethylene ether is 1:(1.6-2.2).

6. A method for preparing a low-foaming surfactant for cleaning beverage containers according to any one of claims 1-5, characterized in that, Includes the following steps: S1. Add sodium hydroxide and stabilizer to water and stir until completely dissolved to obtain a mixture; S2. Add alkyl glycoside, octyl alcohol polyoxyethylene ether, and fatty alcohol sulfonate to the mixture in sequence and stir until completely dissolved to obtain the low-foaming surfactant for cleaning beverage containers.

7. The application of the low-foaming surfactant for cleaning beverage containers as described in any one of claims 1-5 in the field of cleaning agents.

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