Pedestal pan cleaning agent as well as preparation method and application thereof

Abstract

The invention provides a pedestal pan cleaning agent and a preparation method thereof. The pedestal pan cleaning agent is prepared from the following raw materials: an anionic surfactant, a dispersing agent, biological enzyme and essence. According to the invention, the anionic surfactant is matched with the dispersing agent, so that the obtained toilet cleaner has proper viscosity and can stay on a cleaned surface for a certain time. The biological enzyme prepared by fermentation of aspergillus oryzae is adopted as a main effective component and is combined with hydrogen peroxide during application, indole serving as an odor source can be rapidly cracked, hydrogen sulfide and methyl mercaptan can be oxidized into sulfonic acid groups without special environmental conditions, ammonia gas can be adsorbed and neutralized by the weak acidity of the system, and finally the dual effects of descaling and deodorization are achieved. And the pipeline and the environment are not damaged.

Description

Technical Field

[0001] The invention relates to a hard surface cleaner, in particular to a toilet cleaner and a preparation method and application thereof. Background Art

[0002] As people's living standards continue to improve, awareness of cleanliness and hygiene has increased, and various household hard surface cleaners have emerged. Toilet cleaners widely used in homes and hotels are one of the hard surface cleaners. They are required to be able to effectively remove stool, scale and yellow scale from toilet bowls and toilets, and at the same time have the effects of antibacterial and sterilization, deodorization and fragrance retention.

[0003] The toilet cleaners currently available in the market can be divided into three categories: liquid, powder and solid, and each category is divided into alkaline and acidic. In terms of use effect, ease of use and safety, acidic liquids are the most popular. At present, most acidic liquid toilet cleaners are based on hydrochloric acid or hydrochloric acid and phosphoric acid, and are compounded with a variety of surfactants and additives to make non-viscous products. Although this type of cleaning agent has strong detergency and low price, it is highly corrosive to cement gaps, marble surfaces and sewer pipes in sanitary facilities due to its high content of medium and strong inorganic acids and strong sour taste, and is also quite irritating to the skin. In addition, this type of product generally has a low viscosity and is less effective in removing scale on inclined or vertical surfaces. Therefore, research on liquid toilet cleaners with weak acidity and a certain degree of acidity is very active at home and abroad, and the medium and strong acidic non-viscous toilet cleaners available on the market are also being replaced by them.

[0004] More importantly, the deodorizing and fragrance-retaining functions of existing toilet cleaners are not outstanding, and some common toilet cleaners even have a pungent smell of chemical substances, which is not friendly to the home environment. In the field of deodorization, according to different mechanisms of action, existing deodorants can be divided into physical deodorants, chemical deodorants, biological deodorants and plant deodorants. Physical deodorants mainly use adsorption and masking to achieve the purpose of deodorization. Commonly used materials for such deodorants include activated carbon, zeolite, aromatic compounds, etc.; chemical deodorants use chemical reagents to react with odor molecules to achieve the purpose of deodorization. Its characteristics are rapid reaction but short-lasting effect, and easy to produce secondary pollution; biological deodorants have the advantages of non-toxicity and no secondary pollution, but the efficiency of playing a role during use is slow and the applicable places are limited; plant deodorants are mainly a type of deodorant with plant extracts as active components. In particular, they have the advantages of wide sources, natural pollution-free, high deodorization efficiency, and good biodegradability. It is a type of deodorant with great development prospects.

[0005] Bio-enzymes have been widely used in pharmaceutical production, food processing and other industries due to their mild catalytic conditions, high catalytic efficiency and biosafety, and significant effects. When used in environmental deodorization, they have the dual characteristics of biological deodorization and plant deodorization. In the field of pet products, bio-enzymes have been used in environmental sprays, pet staple foods, pet care products, and pet cat litter, but their application in the field of toilet cleaners is very rare. Summary of the invention

[0006] In view of the deficiencies of the acidic cleaning agents in the prior art, the present invention provides a toilet cleaning agent and a preparation method and application thereof.

[0007] A toilet bowl cleaner comprises the following raw materials, measured by mass percentage: 20-43% anionic surfactant, 2-5% dispersant, 1-4% biological enzyme, 0.1-0.3% fragrance and balance water; wherein the biological enzyme is a fermentation extract of Aspergillus oryzae.

[0008] In some embodiments of the present invention, the anionic surfactant is obtained by mixing sodium fatty alcohol polyoxyethylene sulfate, sodium α-olefin sulfonate and sodium fatty alcohol sulfate in a ratio of 1.4-2.5:1-2:3-5.

[0009] In some embodiments of the present invention, the dispersant is sodium polyacrylate, specifically, Dow OROTAN 731A, Acusol 445n purchased from Shanghai Hongzhuang Chemical Technology Co., Ltd., 9003-04-7 from Nantong Runfeng Petrochemical Co., Ltd., etc.

[0010] In some embodiments of the present invention, the method for obtaining the biological enzyme comprises the following steps: S1. Recovery of strains: Take out Aspergillus oryzae from the glycerol tube, inoculate on a slant solid culture medium, and culture at 30-35°C for 5-7 days; S2. Preparation of solid bacterial strains: Under sterile conditions, pick a ring of Aspergillus oryzae from the cultured slant solid culture medium, inoculate it into the corncob powder solid culture medium, and culture it at 30-35° C. for 5-7 days to obtain corncob powder solid bacterial strains; S3, bacterial fermentation: transfer the solid bacteria obtained in S2 into a Erlenmeyer flask containing 100 ml of potato-glucose medium, and culture in a constant temperature shaking incubator at 28-30°C for 4-5 days; S4: Place the fermentation substrate obtained in S3 in a conical flask, add distilled water, extract in a constant temperature oscillating box for 1 hour, and after frozen centrifugation, the obtained supernatant is the biological enzyme.

[0011] Further, the preparation process of the slant culture medium in S1 is: weigh 200-220g of peeled potatoes, cut them into small pieces, add water and boil for 30min, filter the filtrate, add 20-25g of glucose and 20-25g of agar, make the volume to 1000ml, divide it into 25ml test tubes, seal and bandage them, sterilize them at high temperature and high pressure to make a slant, and cool them to obtain the slant culture medium. Generally, high temperature and high pressure sterilization can be performed in a medical high pressure sterilizer.

[0012] Furthermore, the preparation process of the corn cob powder solid culture medium described in S2 is: weigh corn cob powder and water, mix them in a mass ratio of 1:2.5-3, dispense them into 250 ml conical bottles, seal them with cotton plugs, sterilize them at high temperature and high pressure, and cool them to obtain the corn cob powder solid culture medium.

[0013] Furthermore, the preparation process of the potato-glucose culture medium described in S3 is: weigh 600-700 ml of peeled potatoes, cut into small pieces, add water and boil for 30 minutes, add 60-70 g of glucose to the filtrate obtained by filtering, make the volume to 3000 ml, divide it into thirty 250 ml conical flasks, sterilize it at high temperature and high pressure, and obtain the potato-glucose culture medium after cooling.

[0014] Furthermore, in S2, the flask was shaken once in the morning and evening on the second, third and fourth days of culture; in S3 and S4, the rotation speed of the constant temperature shaking incubator was 150 rpm.

[0015] The preparation method of the toilet cleaner described above comprises the following steps: after uniformly mixing anionic surfactant, dispersant and three quarters of water, adding biological enzyme and fragrance while stirring, and uniformly stirring to obtain the toilet cleaner.

[0016] When the above-mentioned toilet cleaner is used, the toilet cleaner is mixed with 20% hydrogen peroxide in a volume ratio of 100:1-3, sprayed on the target surface, left for 8-10 minutes, and then rinsed with water.

[0017] Beneficial effects: Compared with the prior art, the present invention uses the biological enzyme extracted by fermentation of Aspergillus oryzae as one of the raw materials of the toilet bowl cleaner, and acts on the surface of the toilet bowl together with anionic surfactant and dispersant: By adjusting the composition of the anionic surfactant, the toilet bowl cleaner has good stability, and after adding the biological enzyme, the biological enzyme will not be quickly inactivated; The biological enzyme obtained by culturing and fermenting Aspergillus oryzae is used in the toilet bowl cleaner. The lignin peroxidase and manganese peroxidase contained therein are combined with a small amount of hydrogen peroxide to quickly decompose the indole aromatic ring with odor, and at the same time, hydrogen sulfide and methyl mercaptan can be oxidized into sulfonic acid groups, thereby promoting the decomposition and shedding of scale; The use of special biological enzymes, anionic surfactants and dispersants can achieve the dual cleaning effects of descaling and deodorization. It will not cause corrosion damage to the pipes and can also greatly reduce the environmental burden. DETAILED DESCRIPTION

[0018] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall within the scope limited by the appended claims of the application equally.

[0019] The preparation of the biological enzyme used in the embodiment is exemplified below: Bioenzyme-1 S1. Recovery of strains: Take out Aspergillus oryzae from the glycerol tube, inoculate on a slant solid culture medium (weigh 200g of peeled potatoes, cut into small pieces, add water and boil for 30min, filter the filtrate, add 20g of glucose and 20g of agar, make the volume to 1000ml, divide into 25ml test tubes, seal and bandage, sterilize at high temperature and high pressure to make a slant, and cool to obtain), and culture at 30℃ for 7d; S2. Preparation of solid bacterial strains: Under sterile conditions, a ring of Aspergillus oryzae was picked from the cultured slant solid culture medium, inoculated into a corncob powder solid culture medium (corncob powder and water were weighed, mixed in a mass ratio of 1:3, divided into 250 ml triangular bottles, sealed with cotton plugs, sterilized at high temperature and high pressure in a medical autoclave, and cooled), and cultured at 30° C. for 7 days to obtain corncob powder solid bacterial strains; S3, bacterial fermentation: transfer the solid bacteria obtained in S2 to a conical flask containing 100 ml potato-glucose medium (weigh 600 g peeled potatoes, cut into small pieces, add 3000 ml water and boil for 30 min, filter through four layers of gauze, add 60 g glucose to the filtrate, make the volume to 3000 ml, dispense 100 ml into each 250 ml conical flask, sterilize with high temperature and high pressure, and cool to obtain the result), and culture in a constant temperature shaking incubator at 28°C for 5 days; S4: Place the fermentation substrate obtained in S3 in a conical flask, add 100 ml of distilled water, and extract at 150 rpm in a constant temperature shaker for 1 hour. After frozen centrifugation at -4°C, the obtained supernatant is the biological enzyme-1.

[0020] Bioenzyme-2 S1. Recovery of strains: Take out Aspergillus oryzae from the glycerol tube, inoculate on a slant solid culture medium (weigh 220g of peeled potatoes, cut into small pieces, add water and boil for 30min, filter the filtrate, add 25g of glucose and 25g of agar, make the volume to 1000ml, divide into 25ml test tubes, seal and bandage, sterilize at high temperature and high pressure to make a slant, and cool to obtain), and culture at 35℃ for 5d; S2. Preparation of solid bacterial strains: Under sterile conditions, a ring of Aspergillus oryzae was picked from the cultured slant solid culture medium, inoculated into a corncob powder solid culture medium (corncob powder and water were weighed, mixed in a mass ratio of 1:2.5, dispensed into 250 ml triangular bottles, sealed with cotton plugs, sterilized at high temperature and high pressure in a medical autoclave, and cooled), and cultured at 35° C. for 5 days to obtain corncob powder solid bacterial strains; S3, bacterial fermentation: transfer the solid bacteria obtained in S2 to a Erlenmeyer flask containing 100 ml potato-glucose medium (700 g peeled potatoes were weighed, cut into small pieces, added with 3000 ml water and boiled for 30 min, filtered through four layers of gauze, 70 g glucose was added to the filtrate, the volume was fixed to 3000 ml, 100 ml was dispensed into each 250 ml conical flask, sterilized at high temperature and high pressure, and cooled to obtain the result), and cultured in a constant temperature shaking incubator at 30°C for 4 days; S4: Place the fermentation substrate obtained in S3 in a conical flask, add 100 ml of distilled water, and extract at 150 rpm in a constant temperature shaking box for 1 hour. After frozen centrifugation at -4°C, the obtained supernatant is the biological enzyme-2.

[0021] Example 1 After evenly mixing 20% ​​anionic surfactant (sodium polyoxyethylene fatty alcohol sulfate: sodium α-olefin sulfonate: sodium fatty alcohol sulfate = 1.4:1:3), 2% sodium polyacrylate and three quarters of water, add 1% bio-enzyme-1 and 0.1% flavor (NJRICH-TCY-7 purchased from Jiangsu Fengze Soil and Livestock Products Co., Ltd.) while stirring, and finally mix and stir with the remaining one quarter of water to obtain the toilet cleaner.

[0022] Example 2 After evenly mixing 30% of anionic surfactant (sodium polyoxyethylene fatty alcohol sulfate: sodium α-olefin sulfonate: sodium fatty alcohol sulfate = 2:1.5:4), 3.5% of sodium polyacrylate and three quarters of water, add 2.5% of bio-enzyme-1 and 0.2% of flavor (rose perfume type flavor purchased from Shandong Qianfanshun Chemical Co., Ltd.) while stirring, and finally mix and evenly stir with the remaining one quarter of water to obtain the toilet cleaner.

[0023] Example 3 After evenly mixing 43% of anionic surfactant (sodium polyoxyethylene fatty alcohol sulfate: sodium α-olefin sulfonate: sodium fatty alcohol sulfate = 2.5:2:5), 5% sodium polyacrylate and three quarters of water, add 4% bio-enzyme-2 and 0.3% flavor (flavor purchased from Shandong Tonglan Chemical Co., Ltd.) while stirring, and finally mix and evenly stir with the remaining one quarter of water to obtain the toilet cleaner.

[0024] Example 4 Same as Example 3, except that the composition of the anionic surfactant used is fatty alcohol polyoxyethylene sodium sulfate: sodium α-olefin sulfonate: fatty alcohol sodium sulfate = 2.5:2.5:5.

[0025] Example 5 Same as Example 3, except that the anionic surfactant used is composed of sodium fatty alcohol polyoxyethylene sulfate: sodium fatty alcohol sulfate = 2.5:5.

[0026] Example 6 Same as Example 3, except that the anionic surfactant used is composed of sodium fatty alcohol polyoxyethylene sulfate: sodium α-olefin sulfonate = 2.5:2.

[0027] Comparative Example 1 Same as Example 3, except that no biological enzyme-1 is added.

[0028] Comparative Example 2 Same as Example 3, except that the dispersant sodium polyacrylate is not added.

[0029] Application Examples The toilet bowl cleaners obtained in the above Examples 1-6 and Comparative Examples 1-2 were mixed with 20% hydrogen peroxide in a volume ratio of 100:3, sprayed on the target surface, left for 10 minutes, and rinsed with water.

[0030] Application Comparative Example 1 The toilet bowl cleaning agents obtained in Examples 1-3 were directly sprayed on the target surface, left for 10 minutes, and then rinsed with water to test their detergency and deodorizing power.

[0031] Application Comparative Example 2 Mix tap water and 20% hydrogen peroxide in a volume ratio of 100:3, spray on the target surface, leave for 10 minutes, and rinse with water.

[0032] Performance Testing Viscosity: The toilet bowl cleaners obtained in Examples 1-6 and Comparative Examples 1-2 were tested for viscosity according to GB / T15357-94; Corrosion: The toilet bowl cleaners obtained in Examples 1-6 and Comparative Examples 1-2 were subjected to a corrosion test according to GB / T3810.13-2016; Detergency: Calculate the change in the area occupied by the stains before and after treatment in Application Example 1 and Application Comparative Example 2;%; Deodorizing power: 10 volunteers (5 males and 5 females aged 10-60) were selected to smell the odor stimulation of the environment around the toilet before and after cleaning. If all 10 volunteers evaluated it as odorless and comfortable, it passed.

[0033] The test results are shown in the following table:

[0034] It can be seen from the results in Table 1 that the toilet bowl cleaner provided by the present invention has a viscosity suitable for use, excellent detergency and deodorization performance, and is not highly corrosive to the tile glaze surface of the toilet bowl.

[0035] However, it can be seen from the test results of Examples 4-6 in the application examples that if the proportion of sodium α-olefin sulfonate in the anionic surfactant used increases, the corrosion of the resulting cleaner to the tile glaze will increase, which is not conducive to the service life of the toilet. This may be due to the increase in viscosity, which makes the resulting cleaner difficult to rinse on the surface of the toilet. If the anionic surfactant used lacks sodium α-olefin sulfonate or sodium fatty alcohol sulfate, the corrosion of the resulting cleaner to the tile glaze will also increase. This may be because the anionic surfactant cannot form a good protective layer on the tile surface.

[0036] From the results of comparative examples 1-2 in the application examples, it can be seen that in the toilet cleaner, the dispersant sodium polyacrylate and the biological enzyme have a complementary effect. The lack of one of them will lead to an increased degree of corrosion of the tile surface by the obtained cleaner. This may be due to the dynamic influence between the weak alkalinity of the lignin peroxidase molecules contained in the biological enzyme and the weak acidity of sodium polyacrylate.

[0037] From the results of Examples 1-3 in the application examples and the results of Examples 1-3 in the application comparative example 1, it can be seen that when the toilet bowl cleaner is used alone, the detergency is not significantly deteriorated, but the deodorizing ability is unqualified. This is because the biological enzyme contained in the cleaner needs hydrogen peroxide as a catalyst to remove odors. The results of the application comparative example 2 show that hydrogen peroxide alone does not have the detergency and deodorizing ability of the toilet bowl cleaner of the present invention.

[0038] In summary, the toilet bowl cleaner provided by the present invention, when used in combination with a trace amount of hydrogen peroxide, can achieve excellent decontamination efficiency and deodorization properties, and has considerable application prospects in the cleaning field.

Claims

1. A toilet bowl cleaner, characterized in that: The invention comprises the following raw materials in percentage by mass: 20-43% anionic surfactant, 2-5% dispersant, 1-4% biological enzyme, 0.1-0.3% flavor and the balance water; wherein the biological enzyme is the fermentation extract of Aspergillus oryzae.

2. The toilet bowl cleaner according to claim 1, characterized in that: The anionic surfactant is obtained by mixing sodium fatty alcohol polyoxyethylene sulfate, sodium α-olefin sulfonate and sodium fatty alcohol sulfate in a ratio of 1.4-2.5:1-2:3-5.

3. The toilet bowl cleaner according to claim 1, characterized in that: The dispersant is polyacrylate.

4. The toilet bowl cleaner according to claim 1, characterized in that: The method for obtaining the biological enzyme comprises the following steps: S1. Recovery of strains: Take out Aspergillus oryzae from the glycerol tube, inoculate on a slant solid culture medium, and culture at 30-35°C for 5-7 days; S2. Preparation of solid bacterial strains: Under sterile conditions, pick a ring of Aspergillus oryzae from the cultured slant solid culture medium, inoculate it into the corncob powder solid culture medium, and culture it at 30-35° C. for 5-7 days to obtain corncob powder solid bacterial strains; S3, bacterial fermentation: transfer the solid bacteria obtained in S2 into a Erlenmeyer flask containing 100 ml of potato-glucose medium, and culture in a constant temperature shaking incubator at 28-30°C for 4-5 days; S4: Place the fermentation substrate obtained in S3 in a conical flask, add distilled water, extract in a constant temperature oscillating box for 1 hour, and after frozen centrifugation, the obtained supernatant is the biological enzyme.

5. The toilet bowl cleaner according to claim 4, characterized in that: The preparation process of the slant culture medium in S1 is as follows: weigh 200-220 g of peeled potatoes, cut them into small pieces, add water and boil for 30 min, filter the filtrate, add 20-25 g of glucose and 20-25 g of agar, make the volume to 1000 ml, divide it into 25 ml test tubes, seal and bandage them, sterilize them at high temperature and high pressure to make a slant, and cool them to obtain the slant culture medium.

6. The toilet bowl cleaner according to claim 4, characterized in that: The preparation process of the corn cob powder solid culture medium in S2 is: weigh corn cob powder and water, mix them in a mass ratio of 1:2.5-3, dispense them into 250 ml conical bottles, seal them with cotton plugs, sterilize them at high temperature and high pressure, and cool them to obtain the corn cob powder solid culture medium.

7. The toilet bowl cleaner according to claim 4, characterized in that: The preparation process of the potato-glucose culture medium described in S3 is: weigh 600-700g of peeled potatoes, cut them into small pieces, add 3000ml of water and boil for 30min, add 60-70g of glucose to the filtrate obtained by filtration, make the volume to 3000ml, divide it into thirty portions of 250ml conical flasks, sterilize them at high temperature and high pressure, and obtain the potato-glucose culture medium after cooling.

8. The toilet bowl cleaner according to claim 4, characterized in that: In S2, the flask was shaken once in the morning and evening on the second, third and fourth days of culture; in S3 and S4, the rotation speed of the constant temperature shaking incubator was 150 rpm.

9. The method for preparing the toilet bowl cleaning agent according to any one of claims 1 to 8, characterized in that: The method comprises the following steps: uniformly mixing an anionic surfactant, a dispersant and three quarters of water, adding biological enzymes and essence while stirring, and finally uniformly mixing with the remaining one quarter of water to obtain the toilet bowl cleaner.

10. Use of the toilet bowl cleaner according to any one of claims 1 to 8, characterized in that: When used, the toilet bowl cleaner is mixed with 20% hydrogen peroxide in a volume ratio of 100:2-5, sprayed on the target surface, left for 8-10 minutes, and then rinsed with water.

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