A dishwashing composition and preparation method thereof

Abstract

The present invention provides a dishwashing composition and a preparation method thereof, wherein the total mass content of the dishwashing composition is 100%, comprising: 1.5-4.5% of microbial strains, 2.5-13.5% of surfactants, 1-10% of cleaning aids, and the balance is water; wherein the surfactants are isomeric alcohol polyoxyethylene ether sodium sulfate and modified fatty alcohol polyoxyethylene ether; and the microbial strains are Aspergillus oryzae and Bacillus subtilis. The cleaning composition provided by the present application has a high degreasing rate when cleaning dirty tableware even if the dirty tableware is not soaked, and after the dirty tableware is cleaned, the ammonia release and hydrogen sulfide release of the cleaning pool are also low.

Description

Technical Field

[0001] The invention belongs to daily cleaning products, and in particular relates to a tableware cleaning composition and a preparation method thereof. Background Art

[0002] Kitchenware is a general term for kitchen utensils, including washing utensils, cooking utensils, dining utensils, etc. After existing kitchenware is used, it contains a lot of oil stains, which need to be dissolved and removed by using a cleaning composition such as detergent and water. Before using a cleaning composition such as detergent to clean, the tableware needs to be soaked, otherwise it will cause the problem of multiple wipes to remove the oil stains on the surface of the kitchenware, and multiple wipes will not only make cleaning time-consuming and laborious, but also cause irreparable damage to the kitchenware.

[0003] Cleaning compositions such as dishwashing liquids are products in liquid form and are widely used in daily household or industrial cleaning. Traditional dishwashing liquids and other cleaning compositions can only improve the cleaning effect of the product by increasing the effective concentration (i.e., the content of the dishwashing liquid and other cleaning compositions). However, when the effective concentration is too high, it is easy to increase the viscosity of the system, and then cause the product to be colloid. Due to the poor fluidity of the colloid, the dishwashing liquid is easy to adhere to the inner wall of the container. When washing tableware, it not only fails to effectively increase its diffusion area, but also causes poor cleaning effect due to the inability to effectively and quickly dissolve.

[0004] In addition, when the existing detergent and other cleaning compositions are used with water to clean kitchen utensils, they can only be used to dissolve and remove grease, but do not have a good decomposition ability for grease, resulting in the grease in the cleaning pool for cleaning kitchen utensils not being well decomposed and producing odor. Therefore, after cleaning the tableware, the cleaning pool needs to be additionally deodorized, which increases the workload of the staff.

[0005] In view of the problems existing in the prior art, how to provide a dishwashing composition that can not only improve the cleaning effect of kitchen utensils but also avoid the generation of odor in the cleaning pool is an urgent problem to be solved by the present invention. Summary of the invention

[0006] The object of the present invention is to provide a dishwashing composition and a preparation method thereof to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: On the one hand, the present invention provides a dishwashing composition, which comprises, based on the total weight content of the dishwashing composition being 100%, 1.5-4.5% of microbial strains, 2.5-13.5% of surfactants, 1-10% of cleaning aids, and the balance being water;

[0008] Wherein, the surfactant is isomeric alcohol polyoxyethylene ether sodium sulfate and modified fatty alcohol polyoxyethylene ether;

[0009] The microbial strains are Aspergillus oryzae and Bacillus subtilis.

[0010] As a further improvement, the mass ratio of the isomeric alcohol polyoxyethylene ether sodium sulfate to the modified fatty alcohol polyoxyethylene ether is 1:2-4.5.

[0011] As a further improvement, the isomeric alcohol polyoxyethylene ether sodium sulfate includes but is not limited to isomeric decanol polyoxyethylene ether, isomeric undecanol polyoxyethylene ether, and isomeric tridecanol polyoxyethylene ether sodium sulfate.

[0012] As a further improvement, the preparation method of the modified fatty alcohol polyoxyethylene ether comprises the following steps:

[0013] (1) After adding fatty alcohol polyoxyethylene ether into the reactor, the reactor is heated to 50-80° C., NaOH is added and stirred until fully dissolved, and then maleic anhydride is added. After continuing the reaction for 2-6 hours, a crude product is obtained;

[0014] (2) adding the crude product obtained in step (1) to a hydrochloric acid solution, heating the solution in a water bath until the organic phase and the aqueous phase are separated, and collecting the organic phase;

[0015] (3) washing, neutralizing and drying the organic phase obtained in step (2) to obtain modified fatty alcohol polyoxyethylene ether.

[0016] As a further improvement, the molar ratio of the fatty alcohol polyoxyethylene ether to maleic anhydride is 1:1-3.

[0017] As a further improvement, the total colony count of Aspergillus oryzae is 0.5*10 5 -1*10 7 CFU / g, the total colony count of the Bacillus subtilis is 0.1*10 6 -1*10 8 CFU / g.

[0018] As a further improvement, the cleaning aid includes a polyol, and the polyol is at least one of propylene glycol, glycerol, sorbitol and mannitol.

[0019] As a further improvement, the cleaning aid also includes an alcoholamine substance, and the alcoholamine substance is at least one of monoethanolamine, diethanolamine, diisopropanolamine, diglycolamine, and triethanolamine.

[0020] As a further improvement, the method further comprises 0.01-0.1% of an antibacterial agent, wherein the antibacterial agent is at least one of a rhubarb extract and a honeysuckle extract.

[0021] On the other hand, the present invention also provides a method for preparing a dishwashing composition, comprising the following steps: adding microbial strains, surfactants, cleaning aids and water in a reaction kettle at a temperature of 20-50°C while stirring, mixing, and adjusting the pH to 4-10 to obtain a dishwashing composition.

[0022] Compared with the prior art, the beneficial effects of the present invention are: the cleaning composition provided in the present application has a high oil removal rate when cleaning dirty tableware, even without soaking the dirty tableware, and after the dirty tableware is cleaned, the ammonia release and hydrogen sulfide release in the cleaning pool are also low. DETAILED DESCRIPTION

[0023] The present invention will be described below in conjunction with specific embodiments. It should be noted that the following embodiments are examples of the present invention and are only used to illustrate the present invention, but not to limit the present invention. Other combinations and various modifications within the concept of the present invention may be performed without departing from the spirit or scope of the present invention.

[0024] In the following examples, except for the modified fatty alcohol polyoxyethylene ether, the other compound monomers and related reagents used can be purchased from the market, wherein the fatty alcohol polyoxyethylene ether was purchased from Guangzhou Tongyang Chemical Co., Ltd. with the item number TY034; the isomeric tridecanol polyoxyethylene ether sodium sulfate was purchased from Nantong Arches Chemical Co., Ltd. with the model number 1310SA; the rhubarb extract was purchased from Xi'an Ruiying Biotechnology Co., Ltd. with the item number RYDHY23021; ​​the honeysuckle extract was purchased from Shanxi Shuohang Biotechnology Co., Ltd. with the item number SHSW-0327-002; Aspergillus oryzae was purchased from Jinan Jinyuyuan Biotechnology Co., Ltd.; and Bacillus subtilis was purchased from Jinan Qinghai Chemical Co., Ltd. with the model number QH-85.

[0025] The preparation method of the modified fatty alcohol polyoxyethylene ether comprises the following steps:

[0026] (1) After adding 5 mol of fatty alcohol polyoxyethylene ether to the reactor, the reactor was heated to 60° C., 15 mol of NaOH was added and stirred until fully dissolved, and then 6 mol of maleic anhydride was added. After continuing the reaction for 5 hours, a crude product was obtained;

[0027] (2) adding the crude product obtained in step (1) to 100 mL of a 15% by mass dilute hydrochloric acid solution, and heating in a water bath until the organic phase and the aqueous phase are separated, collecting the organic phase, and the water bath heating temperature is 90° C.;

[0028] (3) The organic phase obtained in step (2) was washed five times with deionized water at 90° C., neutralized to a pH of 9 with a 20% by mass NaOH solution, and dried in an oven at 70° C. for 10 h to obtain a modified fatty alcohol polyoxyethylene ether.

[0029] The preparation steps of the dishwashing compositions of Examples 1-5 and Comparative Examples 1-3 are as follows:

[0030] In a reaction kettle at a temperature of 40° C., the components and contents required by Examples 1-5 and Comparative Examples 1-3 were added while stirring, mixed, and the pH was adjusted to 8 to prepare a dishwashing composition, wherein the total colony count of Aspergillus oryzae was 1*10 6 CFU / g, the total number of Bacillus subtilis colonies is 0.5*10 7 CFU / g.

[0031] The required components and the contents of each component in Examples 1-5 and Comparative Examples 1-3 are shown in Table 1-2:

[0032] Table 1

[0033]

[0034]

[0035] Table 2

[0036]

[0037] The dishwashing compositions prepared in Examples 1-5 and Comparative Examples 1-3 were subjected to the decontamination performance, ammonia release, and hydrogen sulfide release measurements. During the test, 5 g of the sample to be tested (the dishwashing compositions prepared in Examples 1-5 and Comparative Examples 1-3) was mixed with 2500 mL of deionized water, and then 800 mL of the sample to be tested was measured and placed in a cleaning tank for washing. The washing temperature was 30° C., and the washing time was 3 min. The decontamination performance was measured immediately after washing. The ammonia release and hydrogen sulfide release were measured in the cleaning tank after washing was completed, and the measurements were performed after 5 days of placement.

[0038] Determination of decontamination performance: According to the standard "Detergents for Hand-washing Dishware GB9985-2000", the dirt objects are: tableware dirt, and the dirt is artificial dirt made of a mixture of lard, tallow and vegetable oil:

[0039] Determination of ammonia release: Sodium hypochlorite-salicylic acid spectrophotometry, GB / T 14679;

[0040] Determination of hydrogen sulfide release: methylene blue spectrophotometry, determination standard: GB / T 14678;

[0041] The test results are shown in Table 3, as follows:

[0042] Table 3

[0043]

[0044] From the comparison between Example 1 and Comparative Example 3, it can be seen that the cleaning composition prepared by using the isomeric alcohol polyoxyethylene ether sodium sulfate and the modified fatty alcohol polyoxyethylene ether in combination has a high oil removal rate when cleaning dirty tableware, and after cleaning, the ammonia release and hydrogen sulfide release in the cleaning pool are low;

[0045] From the comparison between Example 1 and Comparative Examples 1-2, it can be seen that after the cleaning composition prepared by using Aspergillus oryzae and Bacillus subtilis together to clean dirty tableware, the ammonia release and hydrogen sulfide release in the cleaning pool are significantly reduced;

[0046] From the comparison between Example 1 and Examples 4-5, it can be seen that when the mass ratio of isomeric alcohol polyoxyethylene ether sodium sulfate and modified fatty alcohol polyoxyethylene ether is controlled within an appropriate range, the cleaning composition prepared can not only improve the degreasing rate when cleaning dirty tableware, but also reduce the ammonia release and hydrogen sulfide release in the cleaning pool after cleaning;

[0047] From the comparison of Examples 1 to 3, it can be seen that the cleaning composition prepared using the components and contents of the present application not only has a high oil removal rate when cleaning dirty tableware, but also has a low ammonia release and hydrogen sulfide release in the cleaning pool after cleaning;

[0048] In summary, the cleaning composition provided in the present application has a high oil removal rate when cleaning dirty tableware, even without soaking the dirty tableware, and after the dirty tableware is cleaned, the ammonia release and hydrogen sulfide release in the cleaning pool are also low.

[0049] The above implementation modes are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A dishwashing composition, characterized in that: The dishwashing composition comprises, based on the total weight content of 100%, 1.5-4.5% of microbial strains, 2.5-13.5% of surfactants, 1-10% of cleaning aids, and the balance of water; Wherein, the surfactant is isomeric alcohol polyoxyethylene ether sodium sulfate and modified fatty alcohol polyoxyethylene ether; The microbial strains are Aspergillus oryzae and Bacillus subtilis; The preparation method of the modified fatty alcohol polyoxyethylene ether comprises the following steps: (1) After adding fatty alcohol polyoxyethylene ether into the reactor, the reactor is heated to 50-80°C, NaOH is added and stirred until fully dissolved, maleic anhydride is added, and the reaction is continued for 2-6 hours to obtain a crude product; (2) adding the crude product obtained in step (1) into a hydrochloric acid solution, heating in a water bath until the organic phase and the aqueous phase are separated, and collecting the organic phase; (3) washing, neutralizing and drying the organic phase obtained in step (2) to obtain modified fatty alcohol polyoxyethylene ether; The mass ratio of the isomeric alcohol polyoxyethylene ether sodium sulfate to the modified fatty alcohol polyoxyethylene ether is 1:2-4.5; The molar ratio of the fatty alcohol polyoxyethylene ether to maleic anhydride is 1:1-3; The cleaning aid comprises a polyol, wherein the polyol is at least one of propylene glycol, glycerol, sorbitol and mannitol; The cleaning aid further comprises an alcoholamine substance, wherein the alcoholamine substance is at least one of monoethanolamine, diethanolamine, diisopropanolamine, diglycolamine and triethanolamine; It also includes 0.01-0.1% of antibacterial agent; The antibacterial agent is at least one of rhubarb extract and honeysuckle extract.

2. A dishwashing composition according to claim 1, characterized in that: The total colony count of Aspergillus oryzae is 0.5*10 5 -1*10 7 CFU / g, the total colony count of the Bacillus subtilis is 0.1*10 6 -1*10 8 CFU / g.

3. The method for preparing the dishwashing composition according to claim 1, characterized in that: The following steps are involved: In a reaction kettle at a temperature of 20-50° C., add microbial strains, surfactants, cleaning aids and water while stirring, mix well, and adjust the pH to 4-10 to prepare a tableware cleaning composition.

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