An instantaneous high-efficiency odor remover and preparation method thereof

Abstract

The present invention relates to the technical field of A61L101 / 00, and specifically relates to an instantaneous and efficient odor remover and a preparation method thereof. The odor remover comprises at least the following raw materials by weight: 20-40 parts of sodium percarbonate, 5-20 parts of acyloxy compounds, 10-30 parts of pH regulators, and 3-10 parts of surfactants. The odor remover can quickly reduce the odor level to a very weak or odorless level after contacting with an odor source, and has low cost and a simple preparation method. The odor remover can be widely used in the subsequent preparation of super absorbent resins and disposable sanitary products, and meets people's requirements for its antibacterial and deodorizing functionality.

Description

Technical Field

[0001] The invention relates to the technical field of A61L101 / 00, in particular to an instantaneous and highly effective odor remover and a preparation method thereof. Background Art

[0002] As the industrial production process of super absorbent resins matures, they have gradually replaced traditional materials and are widely used in the field of disposable sanitary materials. However, with the continuous improvement of people's quality of life, the functional requirements for the antibacterial and deodorizing properties of super absorbent resins have become more prominent, especially in the fields of adult diapers, pet pads, etc. However, the deodorizing performance of super absorbent resins on the market still has certain limitations.

[0003] A Chinese patent application (with the authorization announcement number CN104403249B) discloses a method for preparing an antibacterial super absorbent resin, which mainly ensures the antibacterial property of the super absorbent resin by introducing a nano-silver antibacterial agent. Although the introduction of the nano-silver antibacterial agent can suppress the long-term odor source to a certain extent, it is not effective in removing the instantaneous odor source in the excrement of adults or pets. A Chinese patent application (with the publication number CN102428110A) discloses a method for preparing deodorizing absorbent polymer particles, which specifically coats the prepared polymer particles with a chelating agent and tannin. Similarly, urea has a certain removal effect on the odor source ammonia released by bacterial decomposition, but the deodorizing effect on the excrement of adults or pets is not obvious. Summary of the invention

[0004] In order to solve the above problems, the present invention provides an instantaneous and efficient odor remover, which can quickly reduce the odor level to a very weak or odorless level after contacting the odor source, and has low cost and simple preparation method. It can be widely used in the subsequent preparation of super absorbent resins and disposable sanitary products, and meets people's requirements for its antibacterial and deodorizing functionality.

[0005] On one hand, the present invention provides an instantaneous and highly effective odor remover, which comprises at least the following raw materials by weight: 20-40 parts of sodium percarbonate, 5-20 parts of acyloxy compounds, 10-30 parts of pH regulators, and 3-10 parts of surfactants.

[0006] As a preferred technical solution, the general structural formula of the acyloxy-containing compound is: Wherein, R is an alkyl group;

[0007] Preferably, R is a straight-chain alkyl group having 1 to 10 carbon atoms.

[0008] Preferably, the R is C8H 17 .

[0009] As a preferred technical solution, the mass ratio of the sodium percarbonate to the acyloxy-containing compound is (1-3):1.

[0010] Based on the system of the present invention, in the presence of sodium percarbonate, an acyloxy-containing compound is introduced, especially an acyloxy-containing compound in which the above-mentioned acyloxy group is directly connected to sodium benzenesulfonate, which can be combined with sodium percarbonate to generate peroxycarboxylic acid, and after contacting with adult urine, the odor level of adult urine can be reduced from level 3-5 to level 0-1 within 30 minutes. The inventor analyzed that the reason may be that under the above structure, the acyloxy group is more likely to combine with the peroxide in sodium percarbonate to generate highly oxidizing peroxycarboxylic acid. Further, by controlling the mass ratio of the sodium percarbonate to the acyloxy-containing compound to (1-3): 1, it is ensured that a sufficient amount of peroxycarboxylic acid is generated, forming a deodorization system that can instantly remove the odor of urine.

[0011] As a preferred technical solution, the pH of the pH regulator is 8-10; preferably, the pH regulator is sodium carbonate and / or sodium bicarbonate.

[0012] Preferably, the pH regulator is sodium carbonate. Preferably, the mass ratio of sodium carbonate to sodium percarbonate is (1-3): (2-5).

[0013] The inventors found in the actual exploration process that sodium percarbonate and acyloxy compounds need certain alkaline conditions to combine to generate strong oxidizing percarboxylic acid, thereby making the provided product have excellent deodorizing effect. The inventors unexpectedly found in the exploration process that the introduction of sodium carbonate as a pH regulator can effectively promote the combination of sodium percarbonate and acyloxy compounds to generate strong oxidizing percarboxylic acid, thereby ensuring the deodorizing ability of the product, especially the mass ratio of sodium carbonate and sodium percarbonate in the control system is (1-3): (2-5), providing the most suitable pH conditions for the combination of sodium percarbonate and acyloxy compounds. However, if a strong alkaline substance such as sodium hydroxide is used as a pH regulator, or the content of sodium carbonate in the system is too high, the system balance is destroyed and the deodorizing effect is reduced.

[0014] As a preferred technical solution, the surfactant is a non-ionic surfactant. Preferably, the non-ionic surfactant is selected from at least one of Tween, Span, and polyoxyethylene ether non-ionic surfactants;

[0015] Preferably, the HLB value of the nonionic surfactant is 13-15. Preferably, the nonionic surfactant is Tween 60.

[0016] When the inventors mixed the prepared odor remover with a super absorbent resin and used it to evaluate the deodorizing ability of adult urine, the odor remover would clump, resulting in uneven mixing with the super absorbent resin, which in turn led to uneven sampling during the subsequent test, affecting the deodorizing test results of the odor remover. The inventors unexpectedly discovered that by introducing a nonionic surfactant with an HLB value of 13-15, especially introducing 3-10 parts of Tween 60 as a nonionic surfactant, the caking phenomenon can be effectively inhibited while promoting the deodorizing effect of the system.

[0017] Another aspect of the present invention provides a method for preparing an instantaneous and highly effective odor remover, which comprises at least the following steps: mixing and grinding sodium percarbonate, an acyloxy-containing compound, a pH regulator, and a surfactant to obtain the odor remover.

[0018] Beneficial Effects

[0019] 1. The present invention provides an instantaneous and highly efficient odor remover, which can quickly reduce the odor level to a very weak or odorless level after contacting the odor source, and has low cost and simple preparation method. It can be widely used in the subsequent preparation of super absorbent resins and disposable sanitary products, and meets people's requirements for its antibacterial and deodorizing functionality.

[0020] 2. Based on the system of the present invention, in the presence of sodium percarbonate, an acyloxy-containing compound is introduced, especially an acyloxy-containing compound in which the above-mentioned acyloxy group is directly connected to sodium benzenesulfonate, which can combine with sodium percarbonate to generate peroxycarboxylic acid. After contacting with adult urine, the odor level of adult urine can be reduced from level 3-5 to level 0-1 within 30 minutes.

[0021] 3. The present invention controls the mass ratio of the sodium percarbonate to the acyloxy-containing compound to be (1-3):1, thereby ensuring the generation of a sufficient amount of peroxycarboxylic acid to form a deodorizing system that can instantly remove the urine odor.

[0022] 4. Based on the system of the present invention, the introduction of sodium carbonate as a pH regulator can effectively promote the combination of sodium percarbonate and acyloxy compounds to generate highly oxidizing percarboxylic acid, thereby ensuring the deodorization ability of the product. In particular, the mass ratio of sodium carbonate to sodium percarbonate in the control system is (1-3): (2-5), providing the most suitable pH conditions for the combination of sodium percarbonate and acyloxy compounds.

[0023] 5. The present invention can effectively inhibit the agglomeration phenomenon and promote the deodorization effect of the system by introducing a nonionic surfactant with an HLB value of 13-15, especially introducing 3-10 parts of Tween 60 as a nonionic surfactant. DETAILED DESCRIPTION

[0024] Example 1

[0025] Embodiment 1 of the present invention provides an instantaneous and highly effective odor remover, which is composed of the following raw materials in parts by weight: 0.3 g of sodium percarbonate, 0.15 g of an acyloxy compound, 0.2 g of a pH regulator, and 0.05 g of a surfactant.

[0026] The general structural formula of the acyloxy-containing compound is: Among them, R is R is C8H 17 (straight chain); the acyloxy compound is specifically sodium nonanoyloxybenzenesulfonate.

[0027] The pH regulator is sodium carbonate.

[0028] The surfactant is a nonionic surfactant, and the nonionic surfactant is Tween 60.

[0029] On the other hand, Example 1 of the present invention provides a method for preparing an instantaneous and highly effective odor remover, comprising the following steps: mixing sodium percarbonate, an acyloxy-containing compound, a pH adjuster, and a surfactant and grinding them to 60 mesh to obtain the obtained product.

[0030] Example 2

[0031] On the one hand, Example 2 of the present invention provides an instantaneous and efficient odor remover and a preparation method thereof. Its specific implementation method is the same as that of Example 1, except that the instantaneous and efficient odor remover is composed of the following raw materials, by weight: 0.225 g of sodium percarbonate, 0.225 g of acyloxy-containing compound, 0.2 g of pH adjuster, and 0.05 g of surfactant.

[0032] Example 3

[0033] On the one hand, Example 3 of the present invention provides an instantaneous and efficient odor remover and a preparation method thereof. Its specific implementation method is the same as that of Example 1, except that the instantaneous and efficient odor remover is composed of the following raw materials, by weight: 0.25 g of sodium percarbonate, 0.20 g of acyloxy-containing compound, 0.2 g of pH adjuster, and 0.05 g of surfactant.

[0034] Comparative Example 1

[0035] Comparative Example 1 of the present invention provides an instantaneous and efficient odor remover and a preparation method thereof. The specific implementation manner is the same as that of Example 1, except that, by weight, it is composed of the following raw materials: 0.3 g of sodium percarbonate, 0.15 g of an acyloxy compound, and 0.2 g of a pH adjuster.

[0036] Comparative Example 2

[0037] Comparative Example 2 of the present invention provides an instantaneous and efficient odor remover and a preparation method thereof. Its specific implementation method is the same as that of Example 1, except that, by weight, it is composed of the following raw materials: 0.3 g of sodium percarbonate, 0.15 g of acyloxy-containing compound, 0.5 g of pH adjuster, and 0.05 g of surfactant.

[0038] Comparative Example 3

[0039] Comparative Example 3 of the present invention provides an instantaneous and efficient odor remover and a preparation method thereof, and its specific implementation manner is the same as that of Example 1, except that the pH adjuster is sodium hydroxide.

[0040] Comparative Example 4

[0041] Comparative Example 4 of the present invention provides an instantaneous and efficient odor remover and a preparation method thereof. Its specific implementation method is the same as that of Example 1, except that, by weight, it is composed of the following raw materials: 0.05 g of sodium percarbonate, 0.4 g of acyloxy-containing compound, 0.2 g of pH adjuster, and 0.05 g of surfactant.

[0042] Comparative Example 5

[0043] Comparative Example 5 of the present invention provides an instantaneous and efficient odor remover and a preparation method thereof, and its specific implementation manner is the same as that of Example 1, except that the surfactant is sodium dodecylbenzene sulfonate.

[0044] Performance Testing Methods

[0045] Deodorizing ability test:

[0046] 1. Sample preparation: Take 20g SAP (the model must be specified) and put it in a sealed bag. Weigh the odor remover prepared in the embodiment and the comparative example and mix it into the SAP. Blow air into the bag and use the shaking method (Xu's shaking method) in the AS test method to mix for 1min to obtain a SAP sample. Weigh 0.67g SAP sample, add 20g urine (adult urine), keep warm at 37°C for 30min, and conduct a sensory test.

[0047] Adult urine: male urine within 6 hours, and ensure that the initial odor is level 5 (in order to ensure the representativeness of the sample, it is a mixture of urine from three people).

[0048] 2. Odor evaluation: The tester opens the sample cover, puts his nose 3cm away from the bottle mouth, and gently fan it with his hand to smell the degree of odor, and the recorder records it. The time from opening the cover to sealing the end of the test for each sample should not exceed 30s. The final result of each sample is the average of the test results of 5 testers, recorded in Table 1. The evaluation criteria are as follows: 5: strong odor; 4: strong odor; 3: easily felt odor; 2: very light odor (can know what kind of odor it is); 1: weak odor (can sense the existence of this odor); 0: no odor (in order to prevent the tester's sensory perception and numerical value from not matching, the tester only needs to comment on the degree of odor, and a dedicated person will match the sensory perception with the numerical value, and limit the test order of the tester to avoid sensory errors caused by different odor loss caused by each opening of the cover).

[0049] 2. pH test: test the initial pH value of adult urine (pH0) and the pH value of adult urine after adding SAP sample (pH1), and the results are recorded in Table 1.

[0050] Table 1

[0051]

Claims

1. An instantaneous and efficient odor remover, characterized in that: By weight, it includes at least the following raw materials: 20-40 parts of sodium percarbonate, 5-20 parts of acyloxy compound, 10-30 parts of pH adjuster, 3-10 parts of surfactant; The general structural formula of the acyloxy-containing compound is: Where R is C8H 17 ; The mass ratio of the sodium percarbonate to the acyloxy-containing compound is (1-3):1; the pH adjuster is sodium carbonate, and the mass ratio of the sodium carbonate to the sodium percarbonate is (1-3):(2-5); The surfactant is a nonionic surfactant; the nonionic surfactant is Tween 60.

2. A method for preparing the instantaneous and highly effective odor remover according to claim 1, characterized in that: At least the following steps are included: The preparation method is obtained by mixing and grinding sodium percarbonate, an acyloxy compound, a pH adjuster and a surfactant.

Images