WO2023074958A1 - Chiffon d'huile ayant une fonction antibactérienne et procédé de fabrication de celui-ci - Google Patents
Chiffon d'huile ayant une fonction antibactérienne et procédé de fabrication de celui-ci Download PDFInfo
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- WO2023074958A1 WO2023074958A1 PCT/KR2021/015374 KR2021015374W WO2023074958A1 WO 2023074958 A1 WO2023074958 A1 WO 2023074958A1 KR 2021015374 W KR2021015374 W KR 2021015374W WO 2023074958 A1 WO2023074958 A1 WO 2023074958A1
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- WIPO (PCT)
- Prior art keywords
- mop
- oil
- antibacterial
- woven fabric
- solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/02—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
- A01N43/04—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
- A01N43/14—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom six-membered rings
- A01N43/16—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom six-membered rings with oxygen as the ring hetero atom
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D20/00—Hair drying devices; Accessories therefor
- A45D20/04—Hot-air producers
- A45D20/08—Hot-air producers heated electrically
- A45D20/10—Hand-held drying devices, e.g. air douches
- A45D20/12—Details thereof or accessories therefor, e.g. nozzles, stands
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
- D06M15/03—Polysaccharides or derivatives thereof
Definitions
- the present invention relates to a method for manufacturing an oil mop having an antibacterial function, and by going through a two-step dehydration process, the retention of the antibacterial function is improved, and both the antibacterial agent and oil are uniformly distributed in the woven fabric for the mop,
- the present invention relates to a method for manufacturing an oil mop having an antibacterial function, which has the advantage that the antibacterial power of the antibacterial agent can be maintained constant for a long time during use, and that only contaminants can be removed while a part of the antibacterial component is maintained during washing after use.
- a general oil mop is a kind of tool that cleans the floor by applying oil to woven fibers and wiping off dusty floors.
- such an oil mop is used for dry cleaning the floor of a building on the principle of adsorbing various foreign substances or fine dust existing on the floor using oil components impregnated or applied to the mop.
- Patent Document 1 discloses an antibacterial cleaning mop adsorbed with silver nanoparticles, but it imparts antibacterial properties using relatively expensive silver nanoparticles, which increases manufacturing cost. Since the and oil components are not evenly mixed with each other, the antibacterial component is not uniformly distributed in the oil mop, and the silver nanoparticles, which are antibacterial components, are easily separated from the mop due to the oil component.
- Patent Document 1 Korean Utility Model Registration No. 20-0415108 (2006.04.27)
- An object of the present invention is to impart antibacterial properties to oil mop at a relatively low cost, at the same time to improve the retention of antibacterial function, to distribute both the antibacterial agent and oil in woven fibers for mop uniformly, and to ensure that the antimicrobial activity of the antibacterial agent is constant for a long time when the mop is used. It is to provide a method for manufacturing an oil mop having a novel antibacterial function having the advantage of being able to remove only contaminants while maintaining some of the antibacterial components when washing after use.
- a method for manufacturing an oil mop having an antibacterial function includes the steps of immersing woven fibers for a mop in an antibacterial solution (S100); First dehydrating the woven fabric for mop soaked in the antibacterial solution (S200); Primary drying of the primary dehydrated woven fabric for mop (S300); immersing the dried woven fabric for mop in an oil solution (S400); Secondary dehydration of the woven fabric for mop immersed in the oil solution (S500); and a secondary drying step of drying the secondary dehydrated woven fabric for mop (S600).
- the antibacterial solution is characterized in that it contains natural water-soluble chitosan.
- the antibacterial solution is characterized in that water and an antibacterial agent are mixed in a water: antimicrobial agent weight ratio having a range of 70:30 to 80:20 to be
- the step (S100) is characterized in that it is performed while maintaining the antibacterial solution at a temperature of 60 to 70 ° C.
- the oil solution is a mixture of water and paraffinic oil in a water:oil weight ratio ranging from 70:30 to 80:20. characterized by
- An oil rag having an antibacterial function according to one embodiment of the present invention is manufactured according to the manufacturing method according to the various embodiments.
- a method for manufacturing an oil mop having an antibacterial function includes the steps of dipping woven fibers for a mop in an antibacterial solution (S100); firstly dehydrating the woven fabric for mop soaked in the antibacterial solution by centrifugal force (S200); Primary drying of the primary dehydrated woven fabric for mop (S300); immersing the dried woven fabric for mop in an oil solution (S400); Secondary dehydration of the woven fabric for mop immersed in the oil solution (S500); and a secondary drying step (S600) of drying the secondary dehydrated woven fabric for mop, wherein ultrasonic waves are continuously applied to the oil solution when the step (S400) is performed, and the step (S500) is 1 After performing centrifugal dehydration in the first direction by car at a speed of 100 to 150 rpm for 5 to 10 minutes, the rotation direction is reversed to perform a second centrifugal dehydration at a speed of 100 to 150 rpm for 5 to 10 minutes, and then again.
- S100
- the rotation direction is reversed to perform 3rd centrifugal dehydration at a rotation speed of 500 to 600 rpm for 5 to 10 minutes, and after the 3rd centrifugal dehydration, the rotation direction is reversed and the rotation speed is 500 to 600 rpm for 5 to 10 minutes. It is carried out as a method of performing secondary centrifugal dehydration, and in the step (S600), the woven fabric after the secondary dehydration is first dried in the sun in a well-ventilated place for 1 to 2 hours, and then placed in a woven fiber drying chamber. After secondary drying by applying hot air at 70 to 80 ° C.
- the manufacturing method of an oil mop having an antibacterial function according to the present invention can impart antibacterial properties to an oil mop at a relatively low cost, and at the same time, the retention of the antibacterial function is improved, and both the antibacterial agent and oil are uniformly distributed in the woven fibers for the mop.
- the antibacterial power of the antibacterial agent can be maintained constant for a long time, and when washing after use, it has the advantage of being able to remove only contaminants while maintaining some of the antibacterial components.
- FIG. 1 is a process chart showing a schematic process of a method for manufacturing an oil mop having an antibacterial function according to the present invention.
- the present invention relates to a method for manufacturing an oil mop having an antibacterial function, and by going through a two-step dehydration process, the retention of the antibacterial function is improved, and both the antibacterial agent and oil are uniformly distributed in the woven fabric for the mop,
- the present invention relates to a method for manufacturing an oil mop having an antibacterial function, which has the advantage that the antibacterial power of the antibacterial agent can be maintained constant for a long time during use, and that only contaminants can be removed while a part of the antibacterial component is maintained during washing after use.
- FIG. 1 is a process chart showing a schematic process of a method for manufacturing an oil mop having an antibacterial function according to the present invention.
- a method for manufacturing an oil mop having an antibacterial function includes the steps of immersing woven fibers for a mop in an antibacterial solution (S100); First dehydrating the woven fabric for mop soaked in the antibacterial solution (S200); Primary drying of the primary dehydrated woven fabric for mop (S300); immersing the dried woven fabric for mop in an oil solution (S400); Secondary dehydration of the woven fabric for mop immersed in the oil solution (S500); and a secondary drying step of drying the secondary dehydrated woven fabric for mop (S600).
- the step of immersing the woven fabric for the mop in the antibacterial solution (S100) is a process in which the woven fiber used as the mop is immersed in the antibacterial solution capable of exhibiting an antibacterial function so that the antimicrobial solution can be adsorbed or absorbed into the woven fiber for the mop. am.
- the immersion step (S100) is preferably performed while maintaining the antibacterial solution at a temperature of 60 to 70 °C.
- the antimicrobial solution is one containing natural water-soluble chitosan.
- the antimicrobial solution is prepared by dissolving an antimicrobial composition containing natural chitosan powder in water.
- the antibacterial composition includes natural chitosan, and, for example, it is possible to use WB-100, a natural antibacterial agent from One Bio Inc.
- the manufacturing method of the oil mop having an antibacterial function according to the present invention is characterized in that it undergoes dehydration and drying processes twice in the first and second stages, respectively.
- the woven cloth for mop is sufficiently immersed in the antibacterial solution for about 30 minutes to 1 hour so that the antibacterial solution is sufficiently absorbed into the woven cloth for mop, and then the remaining antibacterial solution is removed from the mop. It is the process of dehydration and removal from woven fibers.
- the primary dehydration may be performed using centrifugal force, and dehydration may be performed for about 5 to 10 minutes using a dehydrator rotating at a rotational speed of 1,000 to 1,200 rpm.
- the first drying step (S300) is a step of drying the firstly dehydrated woven fabric for mop using sunlight or a hot air dryer, and when using a hot air dryer, drying for about 50 minutes using a hot air temperature of 90 to 100 ° C. do
- such hot air drying is preferably performed using a cylindrical rotary dryer having a rotatable cylinder.
- the mop when the mop is dried naturally using sunlight or by using non-rotating hot air drying, the mop hardens and dries in the same shape as the first dry mop, so the dried mop becomes hard. As a result, a problem in that adsorption capacity of contaminants such as dust is lowered may occur.
- a step (S400) of immersing in an oil solution to be described later is performed.
- the woven mop fiber In the step of immersing in the oil solution (S400), in a state in which only the antibacterial component exists in the woven mop fiber, the woven mop fiber is immersed in an oil solution that exhibits a function of adsorbing foreign substances such as dust, and the oil solution is used for the mop. It is the process of absorption into the woven fabric.
- the oil solution is a mixture of water and paraffinic oil in a water:oil weight ratio ranging from 70:30 to 80:20.
- the oil solution for example, 70 liters of water is mixed with 30 liters of kick-through, and the mixture of water and oil is rotated at a temperature of 60 to 70 ° C using a rotary stirrer with rotary blades It can be prepared by mixing water and oil evenly while rotating the wing at a speed of 100 to 200 rpm.
- the oil solution in which water and oil are evenly mixed is prepared, the oil solution and the woven fiber for rags to which the antibacterial component is adsorbed are placed in a sealable container, and immersed while applying ultrasonic vibration to the mixed solution inside the container keep the state
- the reason for applying ultrasonic vibration is to continuously maintain a uniform mixture of water and oil.
- ultrasonic waves of about 75kHz to 80kHz are continuously applied.
- the second dewatering step (S500) is a step of removing the remaining oil solution from the woven fabric by using centrifugal force or the like in a state in which the oil solution is sufficiently absorbed in the woven fabric for the mop.
- the secondary dehydration can be performed using, for example, centrifugal force, and multi-stage rotation direction switching and low-speed rotation are used.
- centrifugal dehydration is performed in the first direction at a speed of about 100 to 150 rpm for 5 to 10 minutes.
- the second centrifugal dehydration is performed at a speed of about 100 to 150 rpm for 5 to 10 minutes by changing the rotation direction in reverse.
- the rotation direction is reversed again to perform the third centrifugal dehydration for 5 to 10 minutes at a rotation speed of about 500 to 600 rpm, and after the third centrifugal dehydration, the rotation direction is reversed again and the rotation speed is about 500 to 600 rpm.
- the fourth centrifugal dehydration is performed for 5 to 10 minutes.
- the oil solution is kept very evenly immersed in the woven fiber, and it is possible to remove only the unnecessary residual oil solution that is not absorbed into the woven fiber very effectively.
- a secondary drying step (S600) of drying the secondary dehydration woven fabric for mop is performed.
- This secondary drying step (S600) may be carried out through a natural drying process at room temperature of about 15 to 25 ° C, but as will be described later, solar drying using sunlight in a well-ventilated place and using hot air inside the drying chamber It is more preferable to perform hot air drying by changing the drying temperature.
- the woven fiber after the secondary dehydration is first dried in the sun in a well-ventilated place for about 1 to 2 hours, and then put into a drying chamber and hot air at about 70 to 80 ° C. is applied for 10 to 20 minutes After the second drying, it is again dried in the sun for about 1 to 2 hours in a well-ventilated place, and then put in the drying chamber again and heated air at about 70 to 80 ° C. is applied for 30 to 40 minutes to dry the fourth time.
- the drying process can be performed without deterioration of the oil solution remaining after being absorbed into the woven fiber.
- such hot air drying is preferably performed using a cylindrical rotary dryer having a rotatable cylinder.
- the mop when the mop is dried naturally using sunlight or by using non-rotating hot air drying, the mop hardens and dries in the same shape as the first dry mop, so the dried mop becomes hard. As a result, a problem in that adsorption capacity of contaminants such as dust is lowered may occur.
- woven fabric for mop was immersed in an antibacterial solution maintained at a temperature of 60 ° C for 5 minutes, and then placed in a dehydrator rotating at a speed of 1,000 rpm for 5 minutes. Dehydrated. After the dehydration was completed, it was dried for 20 minutes using hot air at 75 ° C using a hot air dryer, and then 70 kg of water and 30 kg of Kixx LUBO 2cSt from GS Caltex were evenly mixed and mixed in a stirring tank.
- woven fabric for mop was immersed in an antibacterial solution maintained at a temperature of 60 ° C for 5 minutes, and then placed in a dehydrator rotating at a speed of 1,000 rpm for 5 minutes. Dehydrated. After the dehydration was completed, it was dried for 20 minutes using hot air at 75 ° C using a hot air dryer, and then 70 kg of water and 30 kg of Kixx LUBO 2cSt from GS Caltex were evenly mixed and mixed in a stirring tank.
- Example 3> The second dehydration process was carried out by centrifugal dehydration in which the direction and rotational speed were changed.
- woven fabric for mop was immersed in an antibacterial solution maintained at a temperature of 60 ° C for 5 minutes, and then placed in a dehydrator rotating at a speed of 1,000 rpm for 5 minutes. Dehydrated. After the dehydration was completed, it was dried for 20 minutes using hot air at 75 ° C using a hot air dryer, and then 70 kg of water and 30 kg of Kixx LUBO 2cSt from GS Caltex were evenly mixed and mixed in a stirring tank.
- Centrifugal dehydration was performed at a rotation speed of 500 rpm for 5 minutes, and then the rotation direction was reversed and centrifugal dehydration was performed for 5 minutes at a rotation speed of 500 rpm. Then, a process of drying it for about 10 hours was performed in a room maintained at a temperature of about 20 ° C.
- woven fabric for mop was immersed in an antibacterial solution maintained at a temperature of 60 ° C for 5 minutes, and then placed in a dehydrator rotating at a speed of 1,000 rpm for 5 minutes. Dehydrated. After the dehydration was completed, it was dried for 20 minutes using hot air at 75 ° C using a hot air dryer, and then 70 kg of water and 30 kg of Kixx LUBO 2cSt from GS Caltex were evenly mixed and mixed in a stirring tank.
- Example 5 Combining the modified conditions of Example 3 and Example 4
- woven fabric for mop was immersed in an antibacterial solution maintained at a temperature of 60 ° C for 5 minutes, and then placed in a dehydrator rotating at a speed of 1,000 rpm for 5 minutes. Dehydrated. After the dehydration was completed, it was dried for 20 minutes using hot air at 75 ° C using a hot air dryer, and then 70 kg of water and 30 kg of Kixx LUBO 2cSt from GS Caltex were evenly mixed and mixed in a stirring tank.
- Centrifugal dehydration was performed at a rotation speed of 500 rpm for 5 minutes, and then the rotation direction was reversed to perform centrifugal dehydration at a rotation speed of 500 rpm for 5 minutes. After that, it is first dried in the sun in a well-ventilated place for 1 hour, put in a drying chamber and dried again by applying hot air at 70 ° C for 10 minutes, and then dried again in the sun in a well-ventilated place. It was dried for the third time during a period of time, put into a drying chamber again, and subjected to fourth drying by applying hot air at 70° C. for 30 minutes.
- Example 1 100 100 95 92 75 70 69
- Example 2 100 100 98 95 82 80 73
- Example 3 100 100 100 97 95 85 81
- Example 4 100 100 98 90 85 82 78
- Example 5 100 100 100 99 98 98 98 Comparative Example 1 100 99 85 75 63 52 45
- Example 1 100 99 92 88 84 79 75
- Example 2 100 99 95 92 89 85 83
- Example 3 100 100 98 95 94 93 92
- Example 4 100 100 95 90 89 85 80
- Example 5 100 100 99 99 99 98 98 Comparative Example 1 100 98 82 72 67 51 41
- the amount (mass) of dust attached to the mop immediately after manufacture in Example 1 was set as 100 as a standard, and the rest of the measured values were expressed as relative mass values compared thereto.
- Example 1 100 99 92 88 82 75 70
- Example 2 120 119 110 100 85 80 78
- Example 3 130 125 120 115 103 99 95
- Example 4 150 149 145 142 125 110 105
- Example 5 175 174 170 167 164 161 157 Comparative Example 1 65 64 50 35 25 20 14
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Plant Pathology (AREA)
- Pest Control & Pesticides (AREA)
- Dentistry (AREA)
- Agronomy & Crop Science (AREA)
- Zoology (AREA)
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Abstract
La présente invention concerne un procédé de fabrication d'un chiffon d'huile ayant une fonction antibactérienne. Le procédé comprend les étapes consistant à : (S100) immerger un tissu tissé pour un chiffon dans une solution antibactérienne ; (S200) déshydrater premièrement le tissu tissé pour le chiffon imprégné dans la solution antibactérienne ; (S300) sécher premièrement le tissu tissé premièrement déshydraté pour le chiffon ; (S400) immerger le tissu tissé séché pour le chiffon dans une solution d'huile ; (S500) déshydrater secondairement le tissu tissé pour le chiffon immergé dans la solution d'huile ; et (S600) sécher secondairement le tissu tissé déshydraté secondairement pour le chiffon ; en passant par un procédé de déshydratation en deux étapes, la rétention de la fonction antibactérienne est améliorée, à la fois un agent antibactérien et de l'huile sont répartis uniformément dans le tissu tissé pour le chiffon, lorsque le chiffon est utilisé, la puissance antibactérienne de l'agent antibactérien peut être maintenue de manière constante pendant une longue période et, lorsque le chiffon est lavé après utilisation, il est possible d'éliminer uniquement des contaminants tout en conservant certains constituants antibactériens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/KR2021/015374 WO2023074958A1 (fr) | 2021-10-29 | 2021-10-29 | Chiffon d'huile ayant une fonction antibactérienne et procédé de fabrication de celui-ci |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/KR2021/015374 WO2023074958A1 (fr) | 2021-10-29 | 2021-10-29 | Chiffon d'huile ayant une fonction antibactérienne et procédé de fabrication de celui-ci |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023074958A1 true WO2023074958A1 (fr) | 2023-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2021/015374 Ceased WO2023074958A1 (fr) | 2021-10-29 | 2021-10-29 | Chiffon d'huile ayant une fonction antibactérienne et procédé de fabrication de celui-ci |
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| Country | Link |
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| WO (1) | WO2023074958A1 (fr) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200305667Y1 (ko) * | 2002-11-05 | 2003-03-03 | 김영렬 | 먼지 털이개 |
| KR20040015341A (ko) * | 2001-07-13 | 2004-02-18 | 쓰리엠 이노베이티브 프로퍼티즈 캄파니 | 향이 첨가된 연마 섬유를 포함하는 세정 연마 물품 |
| KR20090081479A (ko) * | 2008-01-24 | 2009-07-29 | 주식회사 장미 | 다기능성모프 밀대걸래 |
| KR100915478B1 (ko) * | 2007-08-22 | 2009-09-03 | 한정미 | 오일함유 청소용구, 그의 제조방법 및 제조장치 |
| KR20090121506A (ko) * | 2008-05-22 | 2009-11-26 | 아이텍스플래닝 주식회사 | 셀룰로오스직물 또는 면직물의 항균가공방법 |
| KR102326553B1 (ko) * | 2020-06-19 | 2021-11-15 | 곽승호 | 항균기능을 구비한 기름걸레 및 이의 제조방법 |
-
2021
- 2021-10-29 WO PCT/KR2021/015374 patent/WO2023074958A1/fr not_active Ceased
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040015341A (ko) * | 2001-07-13 | 2004-02-18 | 쓰리엠 이노베이티브 프로퍼티즈 캄파니 | 향이 첨가된 연마 섬유를 포함하는 세정 연마 물품 |
| KR200305667Y1 (ko) * | 2002-11-05 | 2003-03-03 | 김영렬 | 먼지 털이개 |
| KR100915478B1 (ko) * | 2007-08-22 | 2009-09-03 | 한정미 | 오일함유 청소용구, 그의 제조방법 및 제조장치 |
| KR20090081479A (ko) * | 2008-01-24 | 2009-07-29 | 주식회사 장미 | 다기능성모프 밀대걸래 |
| KR20090121506A (ko) * | 2008-05-22 | 2009-11-26 | 아이텍스플래닝 주식회사 | 셀룰로오스직물 또는 면직물의 항균가공방법 |
| KR102326553B1 (ko) * | 2020-06-19 | 2021-11-15 | 곽승호 | 항균기능을 구비한 기름걸레 및 이의 제조방법 |
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