KR20030036355A - coating method for plastic using UV lamp - Google Patents

coating method for plastic using UV lamp Download PDF

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Publication number
KR20030036355A
KR20030036355A KR1020030015365A KR20030015365A KR20030036355A KR 20030036355 A KR20030036355 A KR 20030036355A KR 1020030015365 A KR1020030015365 A KR 1020030015365A KR 20030015365 A KR20030015365 A KR 20030015365A KR 20030036355 A KR20030036355 A KR 20030036355A
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KR
South Korea
Prior art keywords
coating
lamp
plating
hardening
plastic
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KR1020030015365A
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Korean (ko)
Inventor
이만호
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주식회사 컴텍스
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Priority to KR1020030015365A priority Critical patent/KR20030036355A/en
Publication of KR20030036355A publication Critical patent/KR20030036355A/en

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Classifications

    • 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
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
    • B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
    • 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
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • 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
    • B05D7/02—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 macromolecular substances, e.g. rubber
    • 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
    • B05D2201/00—Polymeric substrate or laminate
    • B05D2201/02—Polymeric substrate

Abstract

PURPOSE: Provided is a coating method for plastics using UV lamp radiation which radiates UV again after forming a UV hardening layer and before coating so that it finishes hardening process of paint perfectly with increasing adhesion power of lateral side to be painted in coating. CONSTITUTION: The coating method for the plastics using the UV lamp radiation is characterized by comprising the steps of: (i) coating a mother material with a primer including a UV hardening paint; (ii) allowing a UV lamp to harden the hardening paint and form the UV hardening layer; (iii) allowing the UV lamp to radiate UV light to the UV hardening layer; and (iv) plating, vacuum depositing and painting the mother material to form a coating layer.

Description

유브이 램프 조사를 이용한 플라스틱의 코팅방법{coating method for plastic using UV lamp}Coating method for plastic using UV lamp irradiation {coating method for plastic using UV lamp}

본 발명은 UV(Ultra-Violet) 경화형 도료를 포함한 프라이머로 공정전 초벌하도를 하고 UV조사를 행한 후 경화하는 방법을 보완한 것으로, 더욱 상세하게는, 도금, 진공증착, 도색직전과 공정중에 재차 UV를 조사함으로써, 미완성 될 수 있는 UV 커링(curring)을 완성화 시킴과 동시에 미처 경화되지 못한 UV 경화성 도료를 경화시켜 도색시 밀착력을 증가시키는 유브이 램프 조사를 이용한 플라스틱의 코팅방법에 관한 것이다.The present invention complements a method of applying a primer including UV (ultra-violet) curable paint before curing and performing curing after UV irradiation, and more specifically, plating, vacuum deposition, and coating before and during the process. The present invention relates to a method of coating plastics using UV lamp irradiation which irradiates UV to complete UV curing, which may be unfinished, and at the same time, hardens uncured UV curable paint to increase adhesion during painting.

일반적으로, 현재 주위에서 가장 많이 쓰이는 소재로 폴리머(다중체)를 들 수 있는데 흔히 플라스틱 소재(폴리카보네이트, 폴리에틸렌, 폴리에틸렌테레프탈라이트, 폴리이미드, 폴리아세탈 등)로 더욱 잘 알려져 있다. 이러한 플라스틱 소재는 대부분 사출 금형의 방법으로 여러가지 형상을 만드는데 그 외형, 표면이 금형에 의존하여 그대로 사용하기에는 많은 한계가 있다.In general, the most widely used material is a polymer (polymer), which is more commonly known as a plastic material (polycarbonate, polyethylene, polyethylene terephthalite, polyimide, polyacetal, etc.). Most of these plastic materials make various shapes by the method of injection mold, but there are a lot of limitations in their appearance and surface depending on the mold.

이를 해결하기 위해 도금법(습식), 진공증착법(건식;진공 열증착, 스퍼터링, 이온플레이팅 등), 도색의 공정을 거치는데 사출에서 발생한 이물의 제거와 좀 더향상된 도금, 진공증착, 도색의 특성을 나타내기 위해서 유브이 프라이머(UV Primer)처리를 실시하는 방법의 대표적인 기술이 대한민국 특허청 공개특허공보 공개번호 특2002-42121호에 기술되어 있다.To solve this problem, plating (wet), vacuum evaporation (dry; vacuum thermal evaporation, sputtering, ion plating, etc.) and painting process are used to remove foreign substances from injection, and to improve plating, vacuum evaporation and painting characteristics. In order to show the representative technique of the method of performing UV primer (UV Primer) treatment is described in Korean Patent Application Publication No. 2002-42121.

상기 종래기술은 엔지니어링 플라스틱의 표면에 ABS수지와 UV경화형 도료로 구성되는 군으로 부터 선택된 적어도 1종 이상을 도포하여 프라이머층을 형성시키고, 무전해도금 또는 진공증착, 스퍼터링, 이온플레이팅등의 건식도금을 행하는 형태로 구성되나, 상기 종래기술은 유브이 프라이머 처리를 실시하는데 있어서, 모노머(Monomer)의 잔존물과 Polymerization이 완전하게 되지 않은 부분은 진공배기, 어드헤션(adhesion) 등 공정에 많은 문제점을 야기시킨다.The prior art is applied to at least one selected from the group consisting of ABS resin and UV-curable paint on the surface of the engineering plastic to form a primer layer, dry plating such as electroless plating or vacuum deposition, sputtering, ion plating Although it is configured in the form of plating, the prior art in the process of the UV primer treatment, the residue of the monomer (Monomer) and the portion where the polymerization is not complete causes a lot of problems in the process, such as vacuum exhaust, adhesion Let's do it.

따라서, 본 발명은 상기한 문제점을 해결하기 위해 안출된 것으로, UV(Ultra-Violet) 경화형 도료를 포함한 프라이머로 공정전 초벌하도를 하고 UV조사를 행하여 경화시킨 후, 도금, 진공증착, 도색직전과 공정중에 재차 UV를 조사함으로써, 미완성 될 수 있는 UV 커링(curring)을 완성화 시킴과 동시에 미처 경화되지 못한 UV 경화성 도료를 경화시켜 도색시 밀착력을 증가시키는 유브이 램프 조사를 이용한 플라스틱의 코팅방법을 제공하는 것을 목적으로 한다.Therefore, the present invention has been made in order to solve the above problems, and after the initial coating before the process with a primer containing a UV (Ultra-Violet) curable paint and cured by performing UV irradiation, and before plating, vacuum deposition, painting By irradiating UV again during the process, UV curable coatings can be completed while at the same time curing UV-curable paints that cannot be cured. It aims to do it.

상기한 목적을 달설하기 위한 본 발명은, 모재에 UV 경화형 도료를 도포시킨 후 UV 램프를 이용하여 경화시키고, 도금, 진공증착, 도색 중 하나의 방법으로 코팅시키는 플라스틱 도금에 있어서, 상기 코팅전에 UV 램프를 이용하여 코팅시키려는 면에 UV 광을 조사시킴에 의해 그늘짐, 가려짐으로 인하여 경화되지 못한 부분을 경화시켜 코팅면의 밀착력을 증가시키는 유브이 램프 조사를 이용한 플라스틱의 코팅방법을 기술적 요지로 한다.In order to achieve the above object, the present invention, after coating the UV-curable paint on the base material, using a UV lamp to cure, in the plastic plating to be coated by one of plating, vacuum deposition, painting, UV before the coating The technical gist of the plastic coating method using UV lamp irradiation, which increases the adhesion of the coating surface by curing the uncured part by irradiating UV light to the surface to be coated using a lamp by being shaded or covered. .

이에 따라 코팅전에 UV를 재조사함에 의해 미처 경화되지 못한 UV 경화성 도료를 경화시켜 코팅시 도색면의 밀착력을 증가시키는 이점이 있다.Accordingly, there is an advantage of increasing the adhesion of the painted surface during coating by curing the UV curable paint that has not been cured by re-irradiating UV before coating.

이하 본 발명의 바람직한 실시예를 설명한다Hereinafter will be described a preferred embodiment of the present invention.

본 발명에 따른 유브이 램프 조사는 경화형 도료를 포함한 프라이머로 초벌하도를 한 후에 UV 조사를 행하여 경화된 표면에 도금, 진공증착, 도색직전에 재차 UV를 조사하는 방법으로 진행되며, 먼저 모재에 UV경화형 도료가 포함된 프라이머를 도포시키는 것으로 부터 시작된다.UV lamp irradiation according to the present invention proceeds by a method of irradiating UV again immediately before plating, vacuum deposition, and coating the cured surface by UV irradiation after the first undercoat with a primer including a curable paint. Begin by applying a primer with paint.

프라이머가 도포되면 UV램프를 이용하여 경화형 도료를 경화시킴에 의해 UV 경화층이 형성되는 것이다.When the primer is applied, the UV cured layer is formed by curing the curable paint using a UV lamp.

그런 다음에는 UV램프를 이용하여 UV경화층에 UV광을 조사시키는 UV광 조사공정이 진행된다.Then, a UV light irradiation process of irradiating UV light to the UV curing layer using a UV lamp is in progress.

상기 UV광 조사공정은 모재에 도금을 하는 경우에는 모재를 세척 한 후 도금조에 투입되기 직전에 UV조사 공정존을 두어 진행하게 되고, 모재에 진공증착을 하는 경우에는 진공챔버에 장입하기 직전이나, 진공배기 후 진공증착직전에 UV조사 공정존을 두고 진행하게 되며, 모재에 도색을 하는 경우에는 도색공정존 직전에 UV조사 공정존을 두는 것으로 진행하게 된다.The UV light irradiation process is to leave the UV irradiation process zone immediately before being put into the plating bath after washing the base material when plating on the base material, and immediately before charging to the vacuum chamber when vacuum deposition on the base material, After vacuum evacuation, it proceeds with the UV irradiation process zone just before vacuum deposition, and when the base material is painted, the UV irradiation process zone is placed just before the painting process zone.

여기서 상기 UV램프를 이용한 UV광 조사공정은 하나의 UV램프를 이용하여 진행하거나, 여러가지 파장의 UV램프를 한꺼번에 조사하는 방법으로 진행된다.Here, the UV light irradiation process using the UV lamp proceeds by using one UV lamp or a method of irradiating UV lamps of various wavelengths at once.

UV조사공정이 완료된 모재는 표면에 도금, 진공증착, 도색의 방법등이 이용되어 코팅층이 형성되는 것이다.After the UV irradiation process is completed, a coating layer is formed on the surface by plating, vacuum deposition, or painting.

만약 UV광 조사공정을 거치지 않고 진공증착 등의 방법으로 바로 코팅을 하게 된다면, UV 경화층 형성시 미처 완성되지 못한 폴리머는 잔존하게 되며, 이는 진공코팅의 진공배기에는 독소적인 요소로 작용하게 되어 진공상태를 만드는데 많은 시간과 에너지가 소비되게 되며, 또한 코팅층 형성시 모재와 코팅층과의 밀착력을 저하시키는 요인이 된다.If the coating is performed immediately by vacuum deposition or the like without going through the UV light irradiation process, the unfinished polymer remains when the UV cured layer is formed, which acts as a toxin in the vacuum exhaust of the vacuum coating. It takes a lot of time and energy to create a state, and also becomes a factor that reduces the adhesion between the base material and the coating layer when forming the coating layer.

상기의 구성에 의한 본 발명은, UV 경화층을 형성하고, 코팅전에 UV를 재조사함에 의해 미처 경화되지 못한 UV 경화성 도료를 경화시켜 코팅시 도색면의 밀착력이 증가된다는 효과가 있다.The present invention according to the above configuration has the effect of curing the uncured UV curable coating material by forming a UV cured layer and re-irradiating UV before coating to increase the adhesion of the painted surface during coating.

Claims (1)

모재에 UV 경화형 도료를 도포시킨 후 UV 램프를 이용하여 경화시키고, 도금, 진공증착, 도색 중 하나의 방법으로 코팅시키는 플라스틱 도금에 있어서,In the plastic plating to apply the UV curable paint to the base material and to harden using a UV lamp, and to coat by one of plating, vacuum deposition, and painting, 상기 코팅전에 UV 램프를 이용하여 코팅시키려는 면에 UV 광을 조사시킴에 의해 그늘짐, 가려짐으로 인하여 경화되지 못한 부분을 경화시킴과 동시에 코팅면의 밀착력을 증가시키는 유브이 램프 조사를 이용한 플라스틱의 코팅방법.UV coating on the surface to be coated by using UV lamp before the coating to harden the uncured part due to shading and covering, and at the same time to increase the adhesion of the coating surface of the plastic coating using UV lamp Way.
KR1020030015365A 2003-03-12 2003-03-12 coating method for plastic using UV lamp KR20030036355A (en)

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