Composition containing sodium chlorite for deodorizing urinals, method for producing same, and urinal deodorizer

The urinal deodorizer composition using sodium chlorite, silica, and gypsum powder addresses the inadequacies of conventional cleaners by effectively removing bacterial and odor-causing substances, providing sustained deodorizing performance without fragrances, and offering a cost-effective solution.

WO2025105703A1PCT designated stage expired Publication Date: 2025-05-22KIM BYOUNG EOG
View PDF 6 Cites 0 Cited by

Patent Information

Application Number
PCT/KR2024/015143
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-11-16
Filing Date
2024-10-05
Publication Date
2025-05-22

AI Technical Summary

Technical Problem

Conventional urinal deodorizers and cleaners are inadequate in fundamentally removing the root cause of unpleasant odors in urinals, which are primarily due to sediments and bacteria, and they often rely on masking fragrances or chemical detergents that are costly and not sustainable in the long term.

Method used

A composition for a urinal deodorizer containing sodium chlorite, silica, and gypsum powder, which is designed to remove odorous substances and bacteria by oxidizing hydrogen sulfide and ammonia, while the gypsum helps in solidifying and slowly releasing the sodium chlorite for sustained deodorizing action.

Benefits of technology

The composition exhibits excellent deodorizing power without the need for fragrances, effectively removing bacteria and viruses, and maintains its deodorizing performance for an extended period, making it a cost-effective and sustainable solution.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure KR2024015143_22052025_PF_FP_ABST
    Figure KR2024015143_22052025_PF_FP_ABST
Patent Text Reader

Abstract

The present invention relates to a composition for deodorizing urinals comprising sodium chlorite, a method for producing the composition, and a product for deodorizing urinal, specifically to a composition for deodorizing urinals comprising sodium chlorite, silica sand, and gypsum powder, a method for producing the composition for deodorizing urinals, and a product for deodorizing urinals containing sodium chlorite, the method comprising the steps of: mixing sodium chlorite, silica sand, and gypsum powder to produce a mixture (step 1); placing and wrapping the mixture in a filter to obtain a filtering cloth (step 2); and placing the filtering cloth in oriented polypropylene (OPP) and producing a urinal deodorizer (step 3). The composition for deodorizing urinals according to the present invention is highly effective as a deodorizer despite not containing any aromatic components in comparison to conventional urinal deodorizers, has anti-bacterial effect to allow germs or viruses that could be the source of odor to be eliminated, can sustain anti-odor activity for an extended period of time, and can easily be manufactured and installed as a product for deodorizing urinals.
Need to check novelty before this filing date? Find Prior Art

Description

Composition for urinal deodorizer containing sodium chlorite, method for manufacturing same, and urinal deodorizer

[0001] The present invention relates to a deodorant and a method for manufacturing the same, and more specifically, to a urinal deodorant and a method for manufacturing the same.

[0002] Bad odors in bathrooms primarily originate from the floor, urinals, and drains. Urinals and drains are the primary source of bad odors, and the root cause is sediment, such as urine stones, and various bacteria that accumulate in urinals and drains.

[0003] It has been reported that toilet seats contain 11 times the amount of germs found on subway handles. Urinals, in particular, are a breeding ground for bacteria, with the number of bacteria doubling every 20 minutes. Therefore, continuous cleaning and / or disinfection is essential to eliminate foul odors from urinals. In particular, scale can accumulate in the drain pipes that drain water from urinals over time, hindering the smooth flow of water. As scale builds up, water flow slows, leading to clogged toilets and foul-smelling sewage backflow.

[0004]

[0005] Conventional methods to prevent odor and bacterial growth in urinals include flushing them with large amounts of water or cleaning them with various chemical detergents or acidic agents. Furthermore, replacement of toilets and drain pipes has also been attempted to prevent odor and bacterial growth.

[0006] The cleaning method of flowing a large amount of water can be seen as cost-effective compared to the existing method using chemical detergents, but due to recent water shortages and / or rising water costs, this has also raised cost issues.

[0007] Furthermore, methods utilizing chemical detergents or acidic substances utilize either solid or liquid detergents or acids. Solid detergents or acids are installed in the drain under the urinal and can be used for a set period of time, while liquid detergents can be used once to clean the urinal. These methods are merely supplementary measures for restroom hygiene and have limitations in fundamentally eliminating bacteria, the root cause of urinal odor. Furthermore, existing urinal cleaning and deodorizing agents are consumed after a single use, making their purchase cost burdensome.

[0008] Additionally, replacing the toilet or drain pipe is only a temporary solution, as scale will reappear and replacement of the equipment will incur significant costs.

[0009]

[0010] Meanwhile, commonly used solid urinal cleaners include naphthalene, chlorine-based deodorants, or bleach, which are solidified and placed at the bottom of the urinal. When urinating, these solids dissolve, eliminating odors and preventing the spread of bacteria. However, even with conventional deodorants, odor and contamination removal are often unsatisfactory. As an alternative, various air fresheners are widely used to mask odors.

[0011] Conventional detergents such as the above only partially remove or mask the odor and do not break down the odor itself. Therefore, a certain amount of odor and contamination remains around the urinal, and most public buildings use separate spray-type or volatile air fresheners throughout the entire restroom space.

[0012] As mentioned above, conventional products simply use commonly used detergents and disinfectants in toilets. However, they fail to provide satisfactory cleaning power by removing urine stones, which are a major component of urine and difficult to remove after urine dries. Therefore, there has been a persistent need for detergents capable of decomposing the contaminants themselves.

[0013]

[0014] Meanwhile, prior art related to this is as follows:

[0015]

[0016] Prior art literature

[0017] Republic of Korea Patent Registration No. 10-0263871 (filed on September 24, 1997; solid toilet deodorant, solid toilet cleaner, and manufacturing method)

[0018] Republic of Korea Patent Registration No. 10-0692609 (filed on May 26, 2005; broad-spectrum detergent used for cleaning personal toilets and bidets or urinals)

[0019] Republic of Korea Patent Registration No. 10-2400575 (filed on April 23, 2020; Deodorant composition and deodorant for eco-friendly flushing urinals)

[0020] Republic of Korea Patent Registration No. 10-1067786 (filed on March 22, 2011; Eco-friendly solid urinal cleaner composition containing salt and effective microorganisms)

[0021] Republic of Korea Patent Publication No. 10-2019-0138024 (filed on June 4, 2018; deodorant and method for manufacturing the same)

[0022] Republic of Korea Patent Publication No. 10-2011-0018201 (filed on August 17, 2009; urinary stone remover)

[0023]

[0024] However, the prior art does not teach a urinal deodorizer containing sodium chlorite as an active ingredient.

[0025] The present invention is intended to solve the above problems, and one object of the present invention is to provide a composition for a urinal deodorizer containing sodium chlorite, which has excellent deodorizing power for a urinal and is capable of removing bacteria and viruses by fundamentally removing odorous substances generated in a urinal.

[0026] In addition, another object of the present invention is to provide a method for preparing a composition for a urinal deodorizer containing sodium chlorite.

[0027] In addition, another object of the present invention is to provide a urinal deodorizing product containing sodium chlorite.

[0028] In order to achieve the above-mentioned purpose, the present invention provides a composition for deodorizing a urinal, comprising sodium chlorite (NaClO2), more specifically, a composition for deodorizing a urinal, comprising sodium chlorite, silica, and gypsum powder.

[0029]

[0030] In addition, the present invention provides a method for manufacturing a composition for a urinal deodorizer, comprising the steps of: (step 1) preparing a powder mixture by mixing sodium chlorite, silica, and gypsum powder; (step 2) putting the powder mixture into a filter paper and packaging it to obtain a filter cloth; and (step 3) putting the filter paper into an extended polypropylene (OPP) paper to manufacture a urinal deodorizer.

[0031]

[0032] Additionally, the present invention provides a urinal deodorizing product comprising sodium chlorite.

[0033] The composition for a urinal deodorizer of the present invention has excellent deodorizing power even without containing a fragrance component compared to existing urinal deodorizers, and further exhibits a sterilizing effect, enabling the removal of bacteria or viruses that cause odor, and can gradually exert deodorizing power over a long period of time, and is easy to manufacture and install as a urinal deodorizer product.

[0034] Figure 1 is a flow chart showing a method for manufacturing a composition for a urinal deodorizer according to an embodiment of the present invention.

[0035] FIG. 2 is a drawing illustrating a method for manufacturing a urinal deodorizer product that can be used by installing the urinal deodorizer composition of the present invention in a urinal.

[0036] Hereinafter, detailed descriptions of related publicly known technologies will be omitted if they are deemed to unnecessarily obscure the gist of the present invention. Furthermore, the numbers used throughout the description of this specification are merely identifiers used to distinguish one component from another.

[0037] In addition, the terms used in this specification and claims should not be interpreted as limited to their dictionary meanings, and should be interpreted as meanings and concepts that are consistent with the technical idea of ​​the present invention, based on the principle that the inventor can appropriately define the concept of the term to explain his or her invention in the best way.

[0038] Accordingly, the embodiments described in this specification and the configurations illustrated in the drawings are merely preferred embodiments of the present invention and do not express all of the technical ideas of the present invention. Therefore, it should be understood that various equivalents and modified examples may exist that can replace them at the time of filing this application.

[0039] A more detailed description of a preferred embodiment of the present invention will be given, but technical details already known will be omitted or compressed for the sake of brevity.

[0040]

[0041] One embodiment of the present invention provides a composition for deodorizing a urinal, comprising sodium chlorite (NaClO2). Specifically, the composition for deodorizing a urinal comprises sodium chlorite, silica, and gypsum powder.

[0042]

[0043] Let's take a look at each ingredient as follows.

[0044] Sodium chlorite (NaClO2) is used as one of the active ingredients of the composition for a urinal deodorizer of the present invention.

[0045] Sodium chlorite (NaClO2) has the chemical formula NaClO2 (molecular weight 90.5, white solid). Below 38°C, it becomes a trihydrate salt, and above that, it becomes an anhydrous salt. The anhydrous salt is slightly soluble and exhibits alkalinity when dissolved in water. Aqueous solutions decompose in acidic conditions to produce chlorine dioxide, which exhibits bleaching properties and is used for bleaching pulp, synthetic fibers, and food, as well as for sterilizing tap water.

[0046] In the present invention, sodium chlorite is used as a substance that oxidizes and removes hydrogen sulfide (H2S) and ammonia (NH3), which are typical foul-smelling substances in urinals. The reaction between sodium chlorite and hydrogen sulfide or ammonia is as shown in the following reaction formulas 1 and 2.

[0047] [Reaction Formula 1]

[0048] H2S + 2NaClO2--> 2NaCl + H2SO4

[0049] [Reaction Formula 2]

[0050] NH3+ NaClO2+ H2O --> NH4ClO2+ NaOH

[0051] In the present invention, the content of sodium chlorite is preferably 10 to 20 wt%, and more preferably 13 to 16 wt%, based on 100 wt% of the composition. If it is less than the above range, the sodium chlorite is quickly dissolved and disappeared by urine before being solidified, which has the disadvantage of a short duration of the deodorizing performance. If it is more than the above range, the capacity of other components is reduced due to the excess of components, so that solidification does not occur well, and thus the solidification is insufficient, so that the sodium chlorite is quickly dissolved and disappeared by urine, which can exhibit the disadvantage of a short duration of the deodorizing performance.

[0052]

[0053] In addition, silica is used as another component of the composition for urinal deodorizer of the present invention.

[0054] Quartz sand is a type of sand whose main component is silicon dioxide (SiO2). It does not act as a weight on its own or dissolve in water, but the silicon dioxide, which is the main component of quartz sand, plays a role in activating the oxidation of sodium chlorite.

[0055] In the present invention, the content of silica is preferably 45 to 55 wt%, and more preferably 45 to 50 wt%, based on 100 wt% of the composition. If it is less than the above range, the catalytic action of silicon dioxide is weakened, which reduces the oxidation power of sodium chlorite, thereby weakening the deodorizing power, and if it exceeds the above range, the oxidation power of sodium chlorite is activated at the beginning of use, which may shorten the use period of the deodorant, as the sodium chlorite is quickly consumed.

[0056]

[0057] In addition, gypsum powder is used as another component of the composition for urinal deodorizer of the present invention.

[0058] Gypsum is a substance composed of CaSO4·2H2O and has a monoclinic crystal structure. It is used as a cement admixture, white pigment, fertilizer, etc., and when heated with fire, it is made into calcined gypsum and used as a material for making medical casts, plaster walls, and models for castings. Among gypsum, the colorless and transparent ones are called selenite, and the good quality ones are used for optical materials. In the present invention, gypsum plays a role in solidifying and slowly dissolving sodium chlorite.

[0059] In the present invention, the content of gypsum powder is preferably 35 to 45 wt%, and more preferably 40 to 43 wt%, based on 100 wt% of the composition. If it is less than the above range, solidification does not occur well, so that the active ingredient, sodium chlorite, is quickly dissolved by urine, etc. and disappears, which has the disadvantage of shortening the period of use, and if it exceeds the above range, the gypsum hardens more firmly, which may hinder the oxidation reaction of sodium chlorite with malodorous substances outside the urinal, thereby lowering the deodorizing effect.

[0060]

[0061] A composition for deodorizing a urinal comprises 10 to 20 wt% of sodium chlorite, 45 to 55 wt% of silica sand, and 35 to 45 wt% of gypsum powder, based on 100 wt% of the composition, and preferably comprises 13 to 16 wt% of sodium chlorite, 45 to 50 wt% of silica sand, and 40 to 43 wt% of gypsum powder.

[0062]

[0063] Another embodiment of the present invention is a method for preparing a composition for a urinal deodorizer,

[0064] A step of preparing a powder mixture by mixing sodium chlorite, silica and gypsum powder (step 1);

[0065] A step of putting the above powder mixture into a filter paper and packaging it to obtain a filter cloth (step 2); and

[0066] A method is provided, including a step (step 3) of manufacturing a urinal deodorizer by placing the above filter cloth in an extended polypropylene (OPP) paper.

[0067]

[0068] Each step is described in detail below.

[0069] Step 1: Prepare a powder mixture by mixing sodium chlorite, silica, and gypsum powder. The individual components of sodium chlorite, silica, and gypsum powder are as described above.

[0070] The content of each component is preferably 10 to 20 wt% of sodium chlorite, 45 to 55 wt% of silica, and 35 to 45 wt% of gypsum powder based on the total weight of the powder mixture, and more preferably 13 to 16 wt% of sodium chlorite, 45 to 50 wt% of silica, and 40 to 43 wt% of gypsum powder. The optimal efficacy of the urinal deodorizer can be obtained within the above range, and if it is out of this range, there is a disadvantage in that the efficacy of the urinal deodorizer is reduced.

[0071] Mixing and stirring can be performed using commonly used equipment, and the present invention does not specifically limit this.

[0072]

[0073] In step 2, the above powder mixture is placed on a filter paper and packaged to obtain a filter cloth.

[0074] The filter paper used in the present invention is a filter paper that allows urine penetration, and by packaging the powder mixture in the filter paper, the deodorizing effect of the deodorizing composition can be maximized.

[0075] The size of the obtained filter cloth can be adjusted according to the size of the fixed pad of the urinal to which it can be mounted, and it is usually preferable to have a size of 60 × 45 mm.

[0076]

[0077]

[0078] *Afterwards, step 3 is to manufacture a urinal deodorizer by placing the filter cloth into an extended polypropylene (OPP) paper.

[0079] The filter cloth is vulnerable to external physical impact, and if torn, the deodorizing composition inside may be lost to urine, etc. To prevent this problem, the filter cloth is placed in a stretched polypropylene paper to protect the filter cloth from physical impact, and also, the gypsum component inside the stretched polypropylene paper solidifies, allowing the deodorizing performance of the deodorizing composition to gradually develop.

[0080] The stretched polypropylene paper used in the present invention can be adjusted according to the size of the fixed pad of the urinal that can accommodate and mount the filter cloth, and is typically preferably sized at 60 × 80 mm.

[0081]

[0082] Another embodiment of the present invention provides a urinal deodorizing product comprising sodium chlorite.

[0083] The urinal deodorizing product of the present invention can have a urinal deodorizing state in which it is contained in the above-described extended polypropylene paper or fixed inside a pad that can be installed in a urinal.

[0084] More specifically, the urinal deodorizer product of the present invention is obtained by, as shown in FIG. 2, placing the urinal deodorizer composition of the present invention into a filter paper, placing the obtained filter paper into an extended polypropylene (OPP) paper, and fixing the urinal deodorizer composition manufactured by the method of the present invention inside a pad to manufacture a urinal deodorizer capable of being installed in a urinal, or by fixing the urinal deodorizer composition manufactured by the method of the present invention inside a pad to manufacture a urinal deodorizer capable of being installed in a urinal.

[0085] The pad is not particularly limited in size or shape, and can be any pad that can accommodate a urinal deodorizer. Typically, a pad with a 60 × 80 mm stretched polypropylene core that can accommodate a urinal deodorizer is preferred.

[0086]

[0087] The composition for deodorizing a urinal and the deodorizing product thus obtained have excellent deodorizing power compared to existing deodorants without containing a fragrance component, and further, due to the sterilizing effect by the oxidizing power of the sodium chlorite contained in the composition, bacteria and viruses that cause odor can be removed, and by the gypsum component contained, the sodium chlorite that is highly soluble in water is solidified, so that the deodorizing power can be gradually exerted for a long period of time, and since it is packaged in a separate filter paper and stretched polypropylene paper, it has the advantages of being easy to handle and having a simple process, resulting in low manufacturing costs.

[0088]

[0089] Hereinafter, the present invention will be described in more detail with reference to the following examples. However, the following examples are intended only to illustrate the present invention and are not intended to limit the scope of the present invention solely to these examples.

[0090]

[0091] <Example 1> Preparation of a composition for urinal deodorizer of the present invention

[0092] Step 1: Preparation of powder mixture

[0093] 50 g of sodium chlorite was added to a container, 250 g of silica sand and 200 g of gypsum powder were added thereto, and the mixture was thoroughly mixed and stirred to prepare a powder mixture for a urinal deodorizer.

[0094] Step 2: Manufacturing a filter cloth for urinal deodorizer

[0095] 500 g of the powder mixture for urinal deodorizer manufactured in step 1 was placed in a packaging machine, and 5 g was packaged in each filter cloth with a size of 60 × 45 mm to manufacture 100 filter cloths for urinal deodorizer.

[0096] Step 3: Making a Urinal Deodorizer

[0097] The urinal deodorizer filter cloth manufactured in step 2 was individually packaged in 60 × 80 mm sized stretched polypropylene (OPP) paper.

[0098]

[0099] <Example 2> Manufacturing of a urinal deodorizer product of the present invention

[0100] A urinal deodorizer product was manufactured by placing and fixing the urinal deodorizer packaged in the OPP paper manufactured in Example 1 inside a urinal fixing pad that can be installed at the bottom of a urinal.

[0101]

[0102] <Experimental Example 1> Experiment on the deodorizing effect of the urinal deodorizer of the present invention

[0103] The urinal deodorant product (containing 5 g of urinal deodorant) manufactured in Example 2 above was injected into the urinal outlet of a men's restroom, and the generation of odor was confirmed for approximately 14 days.

[0104]

[0105] Table 1 below is a report on the deodorizing effect of a urinal deodorizer manufactured using the deodorizing composition of the present invention, conducted by an authorized testing agency (KTR).

[0106] Concentration before deodorization Concentration after deodorization Deodorization rate Note Ammonia 100 ppm 2.1 ppm 97.9% 20 L capacity Sealed space Hydrogen sulfide 100 ppm 3.3 ppm 96.7%

[0107] As can be seen from the table above, ammonia and hydrogen sulfide, which are representative urinal odor substances, were confirmed to be removed by 97.9% and 96.7%, respectively, when a deodorant was used.

[0108] Furthermore, as a result of these experiments, the urinal deodorizer of the present invention demonstrated excellent deodorizing performance for 14 days, resulting in no unpleasant odors being generated in the urinal. Furthermore, when the dosage of the urine deodorizer of the present invention was increased, the period during which the deodorizing performance was demonstrated was extended by the increased dosage.

[0109]

[0110] Meanwhile, as Control Group 1, when 5 wt% of sodium chlorite was used in Step 1 of Example 1, the deodorizing performance was only exhibited for 3 days. This is because when a small amount of sodium chlorite is used, a portion of the sodium chlorite is dissolved and disappears in urine before solidification.

[0111] As control group 2, even when 10 wt% of sodium chlorite and 20 wt% of gypsum powder were used in step 1 of Example 1, deodorizing performance was only exhibited for 5 days. Similarly, when the gypsum content is low, solidification does not occur well, so the effective ingredient, sodium chlorite, is dissolved and disappears through urine, etc.

[0112] The composition for a urinal deodorizer of the present invention has excellent deodorizing power without containing a fragrance component compared to existing urinal deodorizers, and further exhibits a sterilizing effect, enabling the removal of bacteria or viruses that cause odor, and can gradually exert deodorizing power over a long period of time. It is easy to manufacture and install as a urinal deodorizer product, and thus has industrial applicability.

Claims

1. Sodium chlorite (NaClO) 2 ) for a urinal deodorizer.

2. A composition for deodorizing a urinal, comprising sodium chlorite, silica and gypsum powder according to claim 1.

3. A composition for deodorizing a urinal, comprising 10 to 20 wt% of sodium chlorite, 45 to 55 wt% of silica, and 35 to 45 wt% of gypsum powder, based on 100 wt% of the composition for deodorizing a urinal in accordance with claim 1 or 2.

4. A method for manufacturing a composition for deodorizing a urinal, A step of preparing a powder mixture by mixing sodium chlorite, silica and gypsum powder (step 1); Step 2: placing the above powder mixture into a filter paper and packaging it to obtain a filter cloth; and A method comprising the step (step 3) of manufacturing a urinal deodorizer by placing the filter cloth into an extended polypropylene (OPP) paper.

5. A method according to claim 4, characterized in that step 1 prepares a powder mixture by mixing 10 to 20 wt% of sodium chlorite, 45 to 55 wt% of silica, and 35 to 45 wt% of gypsum powder based on the total weight of the powder mixture.

6. A method according to claim 4, characterized in that the filter cloth is a filter cloth having a size of 60 × 45 mm.

7. A method according to claim 4, characterized in that the stretched polypropylene paper has a size of 60 × 80 mm.

8. Urinal deodorizing products containing sodium chlorite.

9. In paragraph 8, a urinal deodorizer product is obtained by placing the urinal deodorizer composition of paragraph 1 into a filter paper, placing the obtained filter paper into an extended polypropylene (OPP) paper, and fixing the urinal deodorizer composition manufactured by the method into the inside of a pad to manufacture a urinal deodorizer capable of being installed in a urinal.

10. A urinal deodorizer product obtained by manufacturing a urinal deodorizer capable of being installed in a urinal by fixing the urinal deodorizer composition prepared by the manufacturing method of claim 4 inside a pad in claim 8.

Citation Information

Patent Citations

  • Urine splash / urine dirt suppression structure for urinal

    JP2021177071A

  • The sterilizing agent generating steam and the sterilizing pack thereof

    KR100766400B1

  • A manufacturing method of deodorant

    KR101893382B1

  • Manufacturing method of adsorption remover for heavy metals and odors contained in food

    KR1019980087813A

  • Polyimide precursor and polyimide

    KR1020220109345A