KR960002945B1 - Surface coating method for pipe - Google Patents
Surface coating method for pipe Download PDFInfo
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- KR960002945B1 KR960002945B1 KR1019930000630A KR930000630A KR960002945B1 KR 960002945 B1 KR960002945 B1 KR 960002945B1 KR 1019930000630 A KR1019930000630 A KR 1019930000630A KR 930000630 A KR930000630 A KR 930000630A KR 960002945 B1 KR960002945 B1 KR 960002945B1
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- pipe
- coating
- dipping
- paint
- powder coating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
- B05D7/146—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies to metallic pipes or tubes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/36—Successively applying liquids or other fluent materials, e.g. without intermediate treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/52—Two layers
- B05D7/54—No clear coat specified
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F57/00—Supporting means, other than simple clothes-lines, for linen or garments to be dried or aired
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Textile Engineering (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
본 발명은 파이프(Pipe)의 표면도장방법 및 상기 방법의 파이프를 이용한 세탁물 건조대에 관한 것으로, 좀더 구체적으로는 금속성 분체도료와 스티렌 모노머를 중량비 3 : 1∼1 : 3으로 혼합한 혼합물을 용제로 희석한 용액에 주철제 파이프를 디핑(Deeping)시켜 파이프의 내부표면까지 1차도장후, 분체도료로 외표면을 2차도장함을 특징으로 하는 파이프(Pipe)의 표면도장방법 및 상기 방법으로 제조된 파이프를 사용하여 통상의 방법으로 제조된 세탁물 건조대에 관한 것이다.The present invention relates to a surface coating method of a pipe (Pipe) and a laundry drying rack using the pipe of the method, more specifically, a mixture of a metallic powder coating and a styrene monomer in a weight ratio of 3: 1 to 1: 3 as a solvent The surface coating method of the pipe (Pipe) and the pipe produced by the method characterized in that the first coating to the inner surface of the pipe by dipping (Deeping) the cast iron pipe in the diluted solution, and then the outer surface with a powder coating It relates to a laundry drying rack manufactured in a conventional manner.
일반적으로 세탁물 건조대에 사용되는 파이프에는 여러가지가 있으나 경제적인 측면과 제조공정상의 편리함으로 인하여 주철재 파이프가 주로 사용되고 있다.Generally, there are many pipes used for laundry drying racks, but cast iron pipes are mainly used due to economical aspects and convenience in manufacturing process.
그러나, 주철재 파이프를 사용하여 제조된 세탁물 건조대는 주철이 산화되어 녹이 슬기 때문에 세탁물을 건조시 세탁물에 녹이 묻게되는 문제점이 있었다.However, laundry drying racks manufactured using cast iron pipes have a problem in that the laundry is rusted when the laundry is dried because the cast iron is oxidized and rusted.
상기 문제점을 해결하기 위하여 종래에는 주철파이프의 외표면에 비닐을 감거나 분체도료로 도장을 하여 사용하였지만, 비닐을 감은 것은 비닐이 벗겨지게 되거나 찢어지므로서 내구성이 저하되며 분체도료로 외표면을 도장한 경우에는 외표면에 녹이 발생하지는 않았지만 내표면상에 녹이 발생하여 파이프의 내면이 부식되는 문제점이 있을 뿐만아니라 외표면 중에는 잦은 접촉이 있는 부분이 도장이 벗겨져서 녹이 슬게되어 효과적이지 못하였다.Conventionally, in order to solve the above problems, the outer surface of the cast iron pipe was used by winding vinyl or painting with a powder coating. However, winding the vinyl has reduced durability due to peeling or tearing of the vinyl, and painting the outer surface with powder coating. In one case, rust did not occur on the outer surface, but rust occurred on the inner surface, and the inner surface of the pipe was not only corroded. Also, the parts with frequent contact on the outer surface were peeled off, resulting in rust.
특히, 세탁물에는 수분이 많이 존재하므로 물이 파이프의 내면으로 흘러들어가거나 우천시 외부에 있게되면 파이프의 내면이 심각하게 부식되어 녹물이 흘러나오거나 제품의 외관을 손상시키고 내구성이 저하되는 등의 문제점이 있었다.In particular, since there is a lot of moisture in the laundry, if water flows into the inner surface of the pipe or is outside when it is raining, the inner surface of the pipe is severely corroded, causing rust to flow out, damaging the appearance of the product, and deteriorating durability. there was.
따라서, 본 발명의 목적은 파이프의 외표면 뿐만아니라 내표면을 도장하여 우수한 외관과 내구성을 갖도록 하기위한 파이프의 도장방법을 제공하는데 목적이 있다.Accordingly, an object of the present invention is to provide a coating method of a pipe for coating not only the outer surface of the pipe but also the inner surface to have an excellent appearance and durability.
본 발명의 또다른 목적은 상기 목적의 도장방법으로 표면도장된 파이프로 제조된 세탁물 건조대를 제공함에 있다.Still another object of the present invention is to provide a laundry drying rack made of pipe coated with the coating method of the above object.
상기 목적 뿐만아니라 용이하게 표출될 수 있는 또다른 목적을 달성하기 위하여 본 발명에서는 금속성 분체도료와 스티렌모노머(Styrene monomer)를 혼합한 후 용제로 희석하여 디핑(deeping)하므로서 파이프의 외표면 및 내표면을 1차로 코팅(Coating)한후, 외표면에 분체도료로 2차 코팅을 행하여 파이프의 도장을 완료한 다음, 이를 사용하여 세탁물 건조대를 제조하므로서 녹이 슬지 않아 세탁물을 잘 건조시킬 수 있고 내구성을 향상시킬 수 있었다.In order to achieve the above object as well as another object that can be easily expressed in the present invention, the outer surface and the inner surface of the pipe by dipping (deeping) by diluting with a solvent after mixing the metallic powder coating and styrene monomer (Styrene monomer) After coating the coating (Coating) first, and then the coating of the pipe by the second coating with the powder coating on the outer surface, and then using this to manufacture the laundry drying rack to dry the laundry well without rusting and improve the durability Could.
본 발명을 좀더 구체적으로 설명하면 다음과 같다.The present invention will be described in more detail as follows.
일반적으로 통상적인 도료형태인 유기용제 혹은 라텍스도료와 같은 수매체를 사용하지 않고 기체를 분산매체로 하여 플라스틱 분말을 피도료체 표면에 균일하게 부착시키고 이어 분말층을 용융시켜 매끄럽게 균질한 피막을 형성시키는 분체도장방법은 도막의 성능 즉, 내후성, 내마모성, 내충격성이 우수하여 광범위하게 사용되지만 주철제 파이프 내면에는 균일하게 플라스틱 분말을 도포하기 어렵기 때문에 사용되고 있지 않다.Generally, the plastic powder is uniformly adhered to the surface of the coated material by using gas as a dispersion medium without using an aqueous solvent such as an organic solvent or latex paint, which is a conventional paint type, and then the powder layer is melted to form a smooth and uniform film. The powder coating method to be used is widely used because of excellent coating performance, ie weather resistance, abrasion resistance, and impact resistance, but is not used because it is difficult to uniformly apply plastic powder to the inner surface of cast iron pipe.
따라서, 파이프 내표면을 도장하기 위해서는 일반 액체도료를 사용하여 디핑하였지만, 일반액체도료로 디핑시 외표면에도 도장되며 이로 인하여 분체도료로 2차코팅시 도장된 일반액체도료와 분체도료와의 접착성이 불량하며 작업성이 나쁘게 된다.Therefore, in order to paint the inner surface of the pipe, it is dipped with a general liquid paint, but when dipping it with a general liquid paint, it is also coated on the outer surface, which is why the general liquid paint and the powder paint applied during the second coating with the powder paint are applied. This is poor and the workability becomes bad.
뿐만아니라 일반 액체도료는 120∼150℃에서 소성되는데 비하여 분체도료는 180∼200℃에서 소성되므로 일반액체도료로 1차 코팅후 분체도료로 2차코팅하여 소성하면 일반액체도료가 피도료체 표면으로 부터 이탈되는 문제점이 있다.In addition, general liquid paints are calcined at 120 to 150 ℃, whereas powder paints are calcined at 180 to 200 ℃, and then general liquid paint is applied to the surface of the coating when calcined by secondary coating with powder coating after primary coating with general liquid paint. There is a problem that deviates from.
따라서, 본 발명에서는 분체도료에 특정성분을 혼합하여 용제로 희석하여 디핑하고 자연건조시키므로서 파이프의 내표면에 분체도료를 부착시키고 외표면을 2차로 분체도장하므로서 외표면 뿐만아니라 내표면까지 분체도장되어 도막의 특성이 우수한 표면도장 파이프를 얻을수 있었다.Therefore, in the present invention, the powder coating is applied to the inner surface of the pipe by diluting with a solvent, diluting with a solvent, dipping, and drying naturally, and then coating the outer surface with the powder coating on the outer surface as well as the outer surface as well as the powder coating. As a result, a surface-coated pipe having excellent coating film characteristics was obtained.
먼저, 일정길이로 절단되고 세탁물 건조대에 사용될 수 있는 형태로 가공된 파이프의 유삭제거를 위한 전처리 공정을 행한다. 전처리공정은 본원 발명이 속하는 기술분야에서 통상적으로 사용되는 전처리 용액, 바람직하게는 저농도의 알카리 수용액 또는 산수용액으로 세척하여 절단 및 가공시 생성되었던 유삭을 제거한다.First, a pretreatment process is carried out for removing and removing pipes which have been cut to a certain length and processed into a form that can be used for laundry drying racks. The pretreatment process is washed with a pretreatment solution commonly used in the art to which the present invention pertains, preferably a low concentration of alkaline aqueous solution or acid solution, to remove the fines generated during cutting and processing.
그다음에 금속성분체도료와 스티렌모노머를 3 : 1∼1 : 3(중량비)으로 혼합하여 상온에서 24시간 방치한 후, 상기 혼합물과 용제를 1 : 10∼1 : 20(중량비)의 비율로 혼합하여 도료화성분(금속성 분체도료+스티렌모노머)의 농도가 5%정도인 액상상태의 디핑액을 제조한 다음, 전처리한 파이프를 디핑시킨다.Next, the metal component paint and the styrene monomer were mixed in a ratio of 3: 1 to 1: 3 (weight ratio) and allowed to stand at room temperature for 24 hours, and then the mixture and the solvent were mixed in a ratio of 1:10 to 1:20 (weight ratio). After preparing a liquid dipping liquid having a concentration of the coating component (metallic powder coating + styrene monomer) of about 5%, the pretreated pipe is dipped.
금속성 분체도료는 본원발명이 속하는 기술분야에서 통상적으로 사용되는 것이고, 금속성 분체도료의 주성분인 수지로는 저밀도 폴리에틸렌, 염화비닐수지, 셀룰로오즈 아세트부티레이트, 폴리아미드, 에폭시수지, 폴리에스터, 염소화폴리에텔, 불소수지 등이 주로 사용되지만 용융가능한 수지 예를들면, 에틸렌초산비닐 공중합수지, 폴리스티렌, 폴리메틸메타크릴레이트, 폴리카보네이트, 폴리프로필렌, 디아릴프탈레이트 수지, 폴리아세탈수지도 사용될 수 있다.Metallic powder coating is commonly used in the technical field of the present invention, and the main component of the metallic powder coating resin is low density polyethylene, vinyl chloride resin, cellulose acetbutyrate, polyamide, epoxy resin, polyester, chlorinated polyether, Fluorine resins and the like are mainly used, but meltable resins such as ethylene vinyl acetate copolymer resin, polystyrene, polymethyl methacrylate, polycarbonate, polypropylene, diarylphthalate resin, polyacetal resin may also be used.
스티렌 모노머는 금속성 분체도료의 접착성을 향상시키기 위해 혼합하는 것으로 금속성 분체도료와 스티렌 모노머를 3 : 1∼1 : 3(중량비)의 비율도 혼합한다.The styrene monomer is mixed to improve the adhesion of the metallic powder coating, and the metallic powder coating and the styrene monomer are also mixed in a ratio of 3: 1 to 1: 3 (weight ratio).
스티렌 모노머가 25wt%이하로 사용될 경우에는 금속성분체도료의 접착성이 약하여 디핑공정을 행할 수 없으며, 75wt%이상으로 사용될 경우에는 금속성분체도료의 양이 적게되어 생성되는 도막의 두께가 얇아 제반 특성이 저하되며 균일한 도막을 얻을 수 없는 단점이 있다.If the styrene monomer is used at 25wt% or less, the adhesion of the metal component paint is weak and the dipping process cannot be performed. If it is used at 75wt% or more, the amount of the metal component paint is reduced and the thickness of the coating film produced is thin. There is a disadvantage in that a uniform and uniform coating film is not obtained.
본 발명에서 사용될 수 있는 용제로는 메틸에틸케톤(MEK), 메틸이소부틸케톤(MIBK), 디이소부틸케톤(DIBK), 톨루엔, 메틸셀로손브, 래커등이 있으며, 메틸이소부틸케톤과 래커가 특히 바람직하다.Solvents that can be used in the present invention include methyl ethyl ketone (MEK), methyl isobutyl ketone (MIBK), diisobutyl ketone (DIBK), toluene, methyl cellosonb, lacquer, etc., methyl isobutyl ketone and lacquer Is particularly preferred.
용제와 도료화성분의 혼합비는 10 : 1∼20 : 1이 바람직하며, 10 : 1이하일 경우에는 도료화성분이 피도료체 표면에의 부착성이 저하되고 20 : 1이상일 경우에는 도막의 두께가 얇고 불균일한 도막이 얻어지는 문제점이 있다.The mixing ratio of the solvent and the coating component is preferably 10: 1 to 20: 1, and when the coating component is less than 10: 1, the adhesion of the coating component to the surface of the coating is lowered. There is a problem that an uneven coating film is obtained.
따라서, 도료화성분이 5%정도의 농도가 되도록하는 것이 효과적이다.Therefore, it is effective to make the coating component into a concentration of about 5%.
디핑방법은 본 발명이 속하는 기술분야에서 사용되는 통상의 방법이 모두 사용가능하지만, 본 발명에서는 파이프를 콘베어로 이송시키되 중간에 디핑조를 형성하여 파이프가 디핑조를 통과하면서 디핑되도록 하였다. 이때, 콘베어 이송속도는 3m/분의 속도로 행하였으며 도막의 두께는 건조두께가 5∼10㎛가 되도록 하였다. 또한, 콘베어는 통상적인 “u”형 콘베어 다핑시스템을 이용하였다.The dipping method can be used in all the conventional methods used in the art to which the present invention belongs, but in the present invention, the pipe is transferred to the conveyor, but a dipping tank is formed in the middle so that the pipe is dipping while passing through the dipping tank. At this time, the conveyor conveyance speed was carried out at a speed of 3m / min and the thickness of the coating film was 5 ~ 10㎛ dry thickness. In addition, the conveyor used a conventional "u" type conveyor doping system.
상술한 방법으로 디핑후 상온상태에서 3분 정도 자연건조하여 외표면 뿐만아니라 내표면을 1차코팅한 다음, 통상의 분체도료를 사용하여 외표면을 2차코팅한 후 180∼200℃의 상온에서 소결(Sinter)하여 표면처리된 파이프를 얻었다.After dipping in the above-described manner, the film is naturally dried at room temperature for about 3 minutes, and then the primary surface is coated as well as the outer surface, and then the outer surface is subjected to secondary coating using ordinary powder coating, and then at a temperature of 180 to 200 ° C. Sintering gave a surface treated pipe.
이를 이용하여 통상의 방법으로 세탁물 건조대를 제조하므로서 내구성 및 외관이 뛰어난 제품을 얻을 수 있었다.By using this to manufacture a laundry drying rack in a conventional manner it was possible to obtain a product excellent in durability and appearance.
다음의 실시예는 본 발명을 좀 더 구체적으로 설명하는 것이지만 본 발명의 범주를 한정하는 것은 아니다.The following examples further illustrate the invention but do not limit the scope of the invention.
[실시예 1]Example 1
금속성 분체도료(대한잉크페인트공업(주), 074KU아몬드)와 스티렌 모노머를 1 : 1(중량비)로 혼합하여 상온에서 24시간동안 방치한 다음, 상기 혼합물과 MIBK(메틸이소부틸케톤)을 1 : 15(중량비)로 혼합하여 5%농도의 도료액을 제조한다.Metallic powder paint (DAK Ink Paint Co., Ltd., 074KU almond) and styrene monomer were mixed at 1: 1 (weight ratio) and left at room temperature for 24 hours, and then the mixture and MIBK (methyl isobutyl ketone) were 1: Mixing at 15 (weight ratio) to prepare a coating solution of 5% concentration.
한편, 파이프를 필요한 크기 및 형태로 절단 및 가공한 후 5%NaOH용액으로 세척하여 유삭을 제거한 다음, 상기에서 제조된 도료액에 디핑한다.On the other hand, the pipe is cut and processed to the required size and shape, washed with 5% NaOH solution to remove the oil, and then dipped in the paint solution prepared above.
디핑은 통상적인 “u”형 콘베어 디핑시스템에서 3m/분 속도로 콘베어를 이송시키면서 행하여 건조두께가 10㎛가 되도록 하였다.Dipping was carried out while conveying the conveyor at a speed of 3 m / min in a conventional "u" type conveyor dipping system so as to have a dry thickness of 10 m.
상술한 방법으로 디핑후 상온에서 3분동안 자연건조시킨 다음, 통상의 분체도료(대한잉크페인트공업(주), 074KU아몬드)로 외표면을 분체도장하여 표면처리된 파이프를 얻는다.After dipping in the above-described manner, the mixture is naturally dried at room temperature for 3 minutes, and then the outer surface is powder-coated with a conventional powder coating (DK Ink Co., Ltd., 074KU Almond) to obtain a pipe with surface treatment.
상기 파이프로 목적하는 형태의 세탁물 건조대를 제조하였다.The pipe was manufactured to the laundry drying rack of the desired form.
본 발명의 세탁물 건조대와 외표면만 도장된 파이프로 제조된 세탁물 건조대, 비닐로 싸여진 세탁물 건조대를 자연조건하에서 방치하면서 세탁물을 건조하고 녹발생 등이 문제점이 발생하는 일수를 측정한 결과, 본원발명의 제품이 10배 이상 내구성이 있었다.As a result of measuring the number of days of drying the laundry and rust generation while leaving the laundry drying rack of the present invention and the laundry drying rack made of pipes coated only with the outer surface, and the laundry drying rack wrapped with vinyl under natural conditions, The product was 10 times more durable.
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Priority Applications (1)
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KR1019930000630A KR960002945B1 (en) | 1993-01-19 | 1993-01-19 | Surface coating method for pipe |
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KR1019930000630A KR960002945B1 (en) | 1993-01-19 | 1993-01-19 | Surface coating method for pipe |
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KR960002945B1 true KR960002945B1 (en) | 1996-03-02 |
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