KR20080067444A - Method for manufacturing a photochronic mobile phone - Google Patents

Method for manufacturing a photochronic mobile phone Download PDF

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KR20080067444A
KR20080067444A KR1020070004741A KR20070004741A KR20080067444A KR 20080067444 A KR20080067444 A KR 20080067444A KR 1020070004741 A KR1020070004741 A KR 1020070004741A KR 20070004741 A KR20070004741 A KR 20070004741A KR 20080067444 A KR20080067444 A KR 20080067444A
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South Korea
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mobile phone
phone case
coating
coating layer
photochromic compound
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KR1020070004741A
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Korean (ko)
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임동준
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(주)대명씨앤피
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Priority to KR1020070004741A priority Critical patent/KR20080067444A/en
Publication of KR20080067444A publication Critical patent/KR20080067444A/en

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    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C11/00—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C11/00—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00
    • A45C2011/002—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00 for portable handheld communication devices, e.g. mobile phone, pager, beeper, PDA, smart phone

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

A manufacturing method of a photochromic mobile phone is provided to make a mobile phone case have various colors according to the change in the strength of the ultraviolet rays. A manufacturing method of a photochromic mobile phone includes the steps of: (S11) injecting and molding a mobile phone case; (S12) removing foreign materials and static electricity from the mobile phone case; (S13) preparing a photochromic compound; (S14) mixing and stirring 20~30wt% of photochromic compound and 70~80wt% of pigment, applying the mixture to the mobile phone case and curing to form a pigment coating layer; (S15) making silk printing with a specific letter or logon on the pigment coating layer; (S16) forming a laser marking recess; and (S17) making UV coating or urethane coating.

Description

광호변성 휴대폰 케이스 제조방법{Method for manufacturing a photochronic mobile phone}Photochromic cell phone case manufacturing method {Method for manufacturing a photochronic mobile phone}

도 1은 본 발명에 따른 휴대폰 케이스 제조방법의 순서도이다.1 is a flowchart of a method for manufacturing a mobile phone case according to the present invention.

도 2는 본 발명의 휴대폰 케이스 제조방법에 따른 휴대폰 케이스의 개략적인 단면도이다.2 is a schematic cross-sectional view of a mobile phone case according to the mobile phone case manufacturing method of the present invention.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for main parts of the drawings>

10 : 휴대폰 케이스 20 : 도료코팅층10: cell phone case 20: coating layer

30 : 특정문자 40 : 레이저 마킹홈30: specific character 40: laser marking groove

50 : UV 또는 우레탄 코팅층50: UV or urethane coating layer

본 발명은 휴대폰 케이스 제조방법에 관한 것으로, 더욱 상세하게는 휴대폰 케이스가 조사되는 자외선의 강도에 따라 색상이 실시간으로 변하는 광호변성 휴대 폰 케이스 제조방법에 관한 것이다.The present invention relates to a method for manufacturing a mobile phone case, and more particularly to a method for manufacturing a photochromic mobile phone case in which the color is changed in real time according to the intensity of ultraviolet light irradiated by the mobile phone case.

일반적으로 코팅층이 형성된 휴대폰 케이스는 사용자로 하여금 심미감 증대를 꾀할 수 있도록 함은 물론 제품의 특성이나 제조회사 등을 상징적으로 나타내기도 한다.In general, a mobile phone case having a coating layer allows a user to increase aesthetics, as well as symbolically represent product characteristics or a manufacturing company.

종래의 휴대폰 케이스 제조방법은 사출된 휴대폰 케이스에 다양한 색상으로 코팅하기 위하여 먼저 휴대폰 케이스에 스프레이 건에 의해 하도 코팅을 하고 IR건조를 하며, 다시 스프레이 건에 의해 상도 코팅 및 UV코팅의 2차 코팅을 하고 IR건조 및 UV건조를 하였다.In the conventional mobile phone case manufacturing method, in order to coat the injected mobile phone case with various colors, first, the mobile phone case is coated with a spray gun and IR-dried, and again, the top coat and UV coating are applied by the spray gun. IR drying and UV drying were performed.

이와 같은 종래의 휴대폰 케이스 제조방법은 케이스가 ABS 수지인 경우에는 휴대폰 케이스와 코팅층 사이의 접착력이 어느 정도 유지될 수 있었으나, ABS 수지를 제외한 합성수지 케이스에는 잘 적용되지 않는 문제점이 발생하였다.In the conventional method for manufacturing a mobile phone case, when the case is an ABS resin, the adhesive force between the mobile phone case and the coating layer may be maintained to a certain extent, but the problem is not applied to the synthetic resin case except the ABS resin.

또한, 최근의 경향은 휴대폰의 품질이나 기능도 중요하지만 휴대폰의 디자인도 그 어느 때보다 중요해졌다. 따라서 휴대폰 디자인의 상당 부분을 차지하는 색상도 어느 때보다 중요하게 부각되었다.In addition, the recent trend is that the quality and functionality of the mobile phone is important, but the design of the mobile phone is more important than ever. As a result, colors, which make up a significant part of mobile phone designs, are now more important than ever.

그러나, 종래의 기술은 한번 특정한 색상으로 코팅되면 고정되는 휴대폰 케이스의 색상만으로는 다양한 색상을 표현하는데 한계가 있었다.However, the conventional technology has a limitation in expressing various colors only by the color of the mobile phone case which is fixed once coated in a specific color.

본 발명은 전술한 바와 같은 문제점을 해결하기 위한 것으로, 휴대폰 케이스와 코팅층의 상호 접착력을 유지할 수 있도록 하면서도, 코팅에 의해 다양한 색상 으로 이루어진 휴대폰 케이스가 자외선의 강도 변화에 따라 실시간으로 여러 가지 색상으로 변하게 할 수 있는 광호변성 휴대폰 케이스 제조방법을 제공하는데 그 목적이 있다.The present invention is to solve the above problems, while maintaining the mutual adhesion of the mobile phone case and the coating layer, the mobile phone case made of a variety of colors by the coating is changed to various colors in real time in accordance with the change in the intensity of the ultraviolet light The object of the present invention is to provide a photochromic cell phone case manufacturing method.

본 고안은 상기의 목적을 달성하기 위하여 휴대폰 케이스를 사출성형하는 단계, 사출성형된 휴대폰 케이스의 이물질이나 정전기를 제거하는 단계, 폴리우레탄 30∼50wt%, 프탈레이트 에스테르 20∼30wt%, 나프토피란계 화합물 0.1∼3wt%, 이소프로필 알코올 5∼10wt%, 에틸아세테이트 3∼5wt%, 메틸렌클로라이드 5∼12wt%, 메틸이소부틸케톤 1∼3wt%, 크실렌 2∼5wt%, 아세톤 3∼5wt%, 아연 혼합물 5∼12wt%, 산화방지제 0.1∼0.5wt%, UV 차단제 0.1∼0.3wt%, 광안정제 0.1∼0.5wt%, 색소 0.1∼1.0wt%로 구성된 혼합물을 교반하여 이루어진 광호변성 화합물을 제조하는 단계, 상기 광호변성 화합물 20∼30wt%를 도료 70∼80wt%와 혼합 교반하여 휴대폰 케이스에 도포하고 경화시켜 도료코팅층을 형성하는 단계, 인쇄도료 70∼80wt%에 상기 도료에 혼합된 광호변성 화합물의 색상과 자외선 노출시 보색관계에 있는 광호변성 화합물 20∼30wt%를 혼합하고, 상기 광호변성 화합물이 혼합된 인쇄도료를 상기 도료코팅층에 특정문자 또는 로고로 실크인쇄하는 단계, 상기 실크인쇄된 특정문자 또는 로고의 가장자리를 따라 상기 도로코팅층이 제거되도록 음각의 레이저 마킹홈을 형성하는 단계, 및 상기 도료코팅층과 실크인쇄된 부분의 손상을 방지하고 상기 레이저 마킹홈을 메우는 UV 코팅 또는 우레탄코팅 단계를 포함하는 것을 특징으로 하는 휴대폰 케이스 제조방법을 제공한다.The present invention is the step of injection molding the mobile phone case to achieve the above object, the step of removing foreign substances or static electricity of the injection-molded mobile phone case, polyurethane 30-50wt%, phthalate ester 20-30wt%, naphthopyran-based 0.1 to 3 wt% of compound, 5 to 10 wt% of isopropyl alcohol, 3 to 5 wt% of ethyl acetate, 5 to 12 wt% of methylene chloride, 1 to 3 wt% of methyl isobutyl ketone, 2 to 5 wt% of xylene, 3 to 5 wt% of acetone, zinc Preparing a photochromic compound obtained by stirring a mixture consisting of 5-12 wt% of a mixture, 0.1-0.5 wt% of an antioxidant, 0.1-0.3 wt% of a UV blocker, 0.1-0.5 wt% of a light stabilizer, and 0.1-1.0 wt% of a pigment. 20 to 30 wt% of the photochromic compound is mixed with 70 to 80 wt% of paint and stirred to form a coating layer by coating and curing the cell phone case. The color of the photochromic compound mixed with the paint to 70 to 80 wt% of the printing paint. When exposed to UV and UV Mixing 20-30 wt% of the photochromic compound having a complementary color relationship and silk-printing the printing paint mixed with the photochromic compound to the coating layer with specific characters or logos; and the edges of the silk-printed specific characters or logos Forming a negative laser marking groove so that the road coating layer is removed, and a UV coating or urethane coating step of preventing damage to the paint coating layer and the silk-printed portion and filling the laser marking groove. It provides a method for manufacturing a mobile phone case.

이하, 첨부된 도면을 참조하여 본 고안을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도 1에 도시된 바와 같이, 합성수지제 휴대폰 케이스를 사출성형한다(S11).As shown in Figure 1, the synthetic resin mobile phone case is injection molded (S11).

사출성형한 휴대폰 케이스를 헥산 등의 세척제를 이용하여 세척하거나 초음파 또는 증류수 세척 등을 수행하고 열 건조시키고, 브러쉬와 압축공기를 이용하여 상기 휴대폰 케이스에 접촉 회전시켜 정전기와 이물질을 제거하고, 압축공기를 분사하여 먼지 등의 이물질을 제거한다(S12).The injection molded mobile phone case is washed with a hexane or other cleaning agent, or ultrasonically or distilled water is washed and dried, and the contact and rotation of the mobile phone case is removed using a brush and compressed air to remove static electricity and foreign air. Spray to remove foreign substances such as dust (S12).

상기 휴대폰 케이스에 도료를 코팅하는데, 도료에는 광호변성 화합물이 첨가된다. 여기서 도료는 70∼80wt%이고, 광호변성 화합물은 20∼30wt%이다. 도료는 후술하는 광호변성 화합물의 색상변화 유무 때문에 흰색, 회색, 실버, 무색(투명) 중의 하나를 선택한다.Coating the coating on the mobile phone case, the photochromic compound is added to the coating. The coating material is 70 to 80 wt% and the photochromic compound is 20 to 30 wt%. The paint is selected from white, gray, silver, and colorless (transparent) due to the color change of the photochromic compound described below.

상기 광호변성 화합물은 폴리우레탄 30∼50wt%, 프탈레이트 에스테르 20∼30wt%, 나프토피란계 화합물 0.1∼3wt%, 이소프로필 알코올 5∼10wt%, 에틸아세테이트 3∼5wt%, 메틸렌클로라이드 5∼12wt%, 메틸이소부틸케톤 1∼3wt%, 크실렌 2∼5wt%, 아세톤 3∼5wt%, 아연 혼합물 5∼12wt%, 산화방지제 0.1∼0.5wt%, UV 차단제 0.1∼0.3wt%, 광안정제 0.1∼0.5wt%, 색소 0.1∼1.0wt%로 이루어진 혼합물을 교반하여 제조된다(S13).The photochromic compound is 30 to 50wt% polyurethane, 20 to 30wt% phthalate ester, 0.1 to 3wt% naphthopyran compound, 5 to 10wt% isopropyl alcohol, 3 to 5wt% ethyl acetate, 5 to 12wt% methylene chloride , Methyl isobutyl ketone 1 to 3 wt%, xylene 2 to 5 wt%, acetone 3 to 5 wt%, zinc mixture 5 to 12 wt%, antioxidant 0.1 to 0.5 wt%, UV blocker 0.1 to 0.3 wt%, light stabilizer 0.1 to 0.5 It is prepared by stirring a mixture consisting of wt%, 0.1 to 1.0wt% of pigment (S13).

특히, 상기 혼합물에 아연혼합물이 포함되어 있는데, 휴대폰 케이스를 사출성형하면 그때 발생되는 열에 의해 생성된 나트륨 이온이 휴대폰의 액정 물질내로 이동하여 액정 물질의 열화를 일으키는데, 아연혼합물은 나트륨 이온의 이동을 차 단하여 액정 물질 및 광호변성 화합물이 열화되는 것을 방지한다. 여기서 아연혼합물이 5wt% 이하이면 나트륨 이온의 이동 차단효과가 떨어지고, 12wt% 이상이면 빛의 투과율이 크게 나빠지므로 5∼12wt% 인 것이 바람직하다. In particular, the mixture contains a zinc mixture. When injection molding a mobile phone case, sodium ions generated by the heat generated at that time move into the liquid crystal material of the mobile phone, causing deterioration of the liquid crystal material. Blocking to prevent deterioration of the liquid crystal material and the photochromic compound. If the zinc mixture is 5wt% or less, the effect of blocking the movement of sodium ions is reduced, and if it is 12wt% or more, the transmittance of light is greatly deteriorated, so it is preferably 5-12wt%.

이러한 화합물의 구성은 다양한 수지들 중에서 UV 변색시 색상의 선명도, 수지의 고온 침투시 끓는 점의 안정성, 반응속도 측면에서의 침투속도 향상 및 광호변성 화합물의 용해성을 고려하여 선정하였다.The composition of these compounds was selected in consideration of the clarity of color when discoloring UV, stability of boiling point at high temperature penetration of resin, improvement of penetration rate in terms of reaction rate and solubility of photochromic compounds.

상기 광호변성 화합물은 나프토프란계 화합물이 바람직한데, 벤조피란계 화합물을 사용시 폴리우레탄 수지의 물리화학적 반응시 광호변성 입자가 탈리되어 UV변색의 농도가 낮고, 내구성의 문제가 있다.The photochromic compound is preferably a naphthofran-based compound. When the benzopyran-based compound is used, the photochromic particles are detached during the physicochemical reaction of the polyurethane resin, resulting in low UV discoloration and durability.

본 발명에 따른 나프토피란계 화합물의 색상으로는 녹색, 노란색, 파란색, 청보라, 적보라, 적갈색 등이 있다. 이들은 자외선의 세기에 따라 농도의 차이를 보이며, 각 색상별로 용매에 따라서도 또한 그 배합에 따라서도 색상의 차이와 농도의 차이를 보인다. 그리고 녹색-흑색, 적색-흑색, 청색-적색, 보라색-백색 등은 본 발명에 따른 광호변성 화합물로는 상호간에 변색되지 않으므로 앞 부분에서 설명한 바와 같이, 흰색, 무색, 회색 또는 실버의 바탕색으로 하여 녹색, 노란색, 파란색, 청보라, 적보라, 적갈색 등으로 변화시킨다.Colors of the naphthopyran-based compound according to the present invention include green, yellow, blue, blue violet, red violet, reddish brown and the like. They show a difference in concentration according to the intensity of the ultraviolet light, and show a difference in color and concentration depending on the solvent and the combination of each color. And green-black, red-black, blue-red, purple-white and the like, since the photochromic compounds according to the present invention do not discolor each other, as described in the previous part, as a background color of white, colorless, gray or silver Change it to green, yellow, blue, blue, red, reddish brown, etc.

한편, 본 발명에 사용되는 폴리우레탄은 폴리에스테르계와 폴리에테르계가 있는데 본 발명에서는 폴리에스테르계가 바람직하다. 폴리에스테르계의 경우 광호변성 화합물에 영향을 미치지 않고 잘 혼합되지만, 폴리에테르계의 경우 폴리에테르 계의 폴리우레탄을 만드는 과정에서 사용되는 특정 성분이 광호변성 화합물을 다소 파괴시킬 수 있으므로 폴리에스테르계가 바람직하다. On the other hand, the polyurethane used in the present invention is a polyester-based and polyether-based, the polyester is preferred in the present invention. In the case of the polyester type, it is mixed well without affecting the photochromic compound, but in the case of the polyether type, the polyester type is preferable because the specific component used in the process of making the polyurethane of the polyether may destroy the photochromic compound to some extent. Do.

또한, UV 변색시 색상 선명도를 향상시키기 위하여 상기 광호변성 혼합물 1000g에 대해 0.1∼2g 유기산을 첨가할 수 있다. 이때 0.1g 미만이면 첨가효과가 거의 없으며, 2g을 초과하면 광호변성 화합물의 분자구조를 파괴시켜 광호변성 화합물 및 성형물의 색상 내구성을 저하시키는 경향이 있다.In addition, in order to improve color clarity during UV discoloration, 0.1 to 2 g of an organic acid may be added to 1000 g of the photochromic mixture. At this time, if the content is less than 0.1 g, there is almost no effect of addition, and if the content exceeds 2 g, the molecular structure of the photochromic compound is destroyed, thereby decreasing the color durability of the photochromic compound and the molded product.

상기와 같이 광호변성 화합물이 혼합된 도료를 휴대폰 케이스에 도포한 후 약 130∼160℃에서 10∼20초 경화시키고 72∼87℃에서 20∼40분간 건조시켜 도료코팅층을 형성한다(S14).After coating the coating material mixed with the photochromic compound on the mobile phone case as described above to cure for 10 to 20 seconds at about 130 ~ 160 ℃ and dried for 20 to 40 minutes at 72 ~ 87 ℃ to form a coating coating layer (S14).

광호변성 화합물이 포함된 도료코팅층에는 실크인쇄를 하여 회사의 상징이나 로고 등을 표시할 수 있는데, 일반적인 인쇄도료 70∼80wt%에 본 발명에 따른 광호변성 화합물 20∼30wt%를 첨가하여 실크인쇄한다(S15).The coating layer containing the photochromic compound may be silk printed to display a symbol or logo of a company. Silk printing is performed by adding 20 to 30 wt% of the photochromic compound according to the present invention to 70 to 80 wt% of general printing paint. (S15).

상기 인쇄도료에 첨가되는 광호변성 화합물은 도료코팅층에 포함한 광호변성 화합물과는 자외선 노출시 보색관계를 이루도록 한다. 즉 빨강과 녹색, 노랑과 파랑, 녹색과 보라 등의 색광은 서로 보색이며, 이들의 어울림을 보색대비라고 한다. 색상환 속에서 서로 마주보는 위치에 놓인 색은 모두 보색관계를 이루는데 이들을 배색하면 선명한 인상을 준다. 이것은 눈의 망막상의 색신경이 어떤색의 자극을 받으면 그 색의 보색에 대한 감수성이 높아지기 때문이다.The photochromic compound added to the printing paint has a complementary color relationship with the photochromic compound included in the coating layer upon exposure to ultraviolet light. In other words, the color light of red and green, yellow and blue, green and violet are complementary colors, and their matching is called complementary color contrast. The colors placed in the color wheels facing each other form a complementary color relationship, which gives them a clear impression. This is because when a color nerve on the eye's retina is stimulated with a certain color, its sensitivity to the complementary color of the color increases.

그런데 본 발명의 광호변성 화합물로 표현할 수 있는 색상은 전술한 바와 같이 녹색, 청색, 노랑색, 보라색으로 한정되므로 도료코팅층의 광호변성 화합물의 색상이 노랑색일 경우 실크인쇄된 부분의 광호변성 화합물 색상은 파랑색으로 하 고, 도료코팅층의 광호변성 화합물 색상이 녹색일 경우 실크인쇄된 부분의 광호변성 화합물 색상은 보라색으로 하는 것이다. 그리고 보색관계가 아니더라도 도료코팅층의 광호변성 화합물과 실크인쇄된 부분의 광호변성 화합물의 색상은 사용자의 선택에 따라 다양하게 할 수 있음은 당연하다.However, since the color that can be expressed by the photochromic compound of the present invention is limited to green, blue, yellow, and purple as described above, when the color of the photochromic compound of the coating layer is yellow, the color of the photochromic compound of the silk-printed portion is blue. When the color and the color of the photochromic compound of the coating layer is green, the color of the photochromic compound of the silk printed portion is purple. In addition, even if the color is not complementary, the color of the photochromic compound of the coating layer and the photochromic compound of the silk-printed part may be varied according to a user's selection.

상기와 같이 도료코팅층과 실크인쇄된 부분은 자외선의 강도변화에 따라 보색관계를 이루면서 색변화가 일어나므로 심미감을 더 높일 수 있는 것이다.As described above, the coating layer and the silk-printed portion may increase the aesthetics because color change occurs while forming a complementary color relationship according to the change in intensity of ultraviolet rays.

실크인쇄 후에는 도 2에 도시된 바와 같이, 상기 회사의 로고나 특정문자(30)의 가장자리를 따라 레이저 마킹을 하여 휴대폰 케이스(10) 위의 도료코팅층(20)이 제거되도록 음각의 레이저 마킹홈(40)을 형성한다(S16).After silk printing, as shown in Figure 2, the laser marking along the edge of the company's logo or a specific character 30, the laser coating grooves of the intaglio so that the coating layer 20 on the mobile phone case 10 is removed ( 40) (S16).

상기 레이저 마킹 후에는 도료코팅층 및 실크인쇄된 로고나 특정문자의 손상을 방지하기 위하여 UV코팅 또는 우레탄코팅에 의해 레이저 마킹홈이 메워지면서 UV코팅층 또는 우레탄코팅층(50)을 형성하고, UV건조 또는 65∼84℃에서 열 건조한다.(S17)After the laser marking, the UV coating layer or the urethane coating layer 50 is formed while the laser marking groove is filled by UV coating or urethane coating to prevent damage to the coating layer and the silk-printed logo or a specific character. Heat dried at 84 ° C. (S17)

상기와 같이 특정문자(30)의 가장자리를 따라 레이저 마킹홈(40)이 형성되어 있으면 실크인쇄된 특정문자(30)와 도료코팅층(20)이 보색관계와 상관없이 시각적으로 특정문자가 은근히 구분되어 진다.When the laser marking groove 40 is formed along the edge of the specific character 30 as described above, the silk-printed specific character 30 and the paint coating layer 20 are visually separated from the specific character regardless of the complementary color relationship. Lose.

휴대폰은 항상 휴대하고 통화중 얼굴과 접촉이 자주 발생하므로 손이나 얼굴에서 묻어나는 유분을 먹이로 하는 균들이 서식하고 쉽게 증식한다.Cell phones are always portable and contact with the face frequently occurs during calls, so germs that feed on oil from the hands or face inhabit and grow easily.

피톤치드 정유는 항바이러스 및 항진균 효과가 있으며, 천연식물인 편백나무에서 주로 추출되는 환경친화적인 항균물질로써, 인체에 무해하여 안전하게 사용될 수 있으므로 UV 코팅액이나 우레탄 코팅액에 피톤치드 정유를 첨가할 수 있다. 여기서 피톤치드 정유는 UV 코팅액이나 우레탄 코팅액 중량의 0.1∼0.5wt%를 사용하는 것이 바람직하다. 상기 피톤치드가 0.1wt% 미만으로 첨가될 경우에는 항균효과가 충분하지 못하므로, 요구되는 코팅층의 강도와 항균효과를 감안하여 첨가량을 정하는 것이 바람직하다.Phytoncide essential oil has antiviral and antifungal effects, and is an environmentally friendly antibacterial material mainly extracted from natural cypress, which can be safely used without harming human body, so phytoncide essential oil can be added to UV coating liquid or urethane coating liquid. The phytoncide essential oil is preferably used 0.1 to 0.5wt% of the weight of the UV coating liquid or urethane coating liquid. When the phytoncide is added in less than 0.1wt% antimicrobial effect is not sufficient, it is preferable to determine the addition amount in consideration of the strength and antimicrobial effect of the required coating layer.

이와는 별도로 도료코팅층을 형성하기 전에 프라이머 코팅을 먼저 하고 그 위에 도료코팅을 함으로써 도료코팅층과 휴대폰 케이스와의 접착력을 강화시킬 수도 있다.Separately, before the coating layer is formed, a primer coating may be performed first, followed by coating on the coating layer to enhance adhesion between the coating layer and the mobile phone case.

상기 프라이머는 에틸렌비닐아세테이트 10∼15wt%, 아크릴레이트화합물 10∼15wt% 혼합하여 얻은 중합체에 염화폴리올레핀 20∼30wt%, 톨루엔 40∼60wt%을 혼합시켜 교반하여 제조된다. 여기서 에틸렌 비닐아세테이트는 용융지수가 3∼6이고, 비닐아세테이트 함량이 20∼35인 에틸렌비닐아세테이트 수지가 바람직하다. 또한 아크렐레이트 화합물로는 이소보닐아크릴레이트, 이소보닐메타아크릴레이트, 히드록시에틸메타아크릴레이트, 히드록시에틸아크릴레이트, 메타아크릴산, 아크릴산, 메틸메타아크릴레이트, 에틸렌글리콜디메타아크릴레이트, 트리에틸렌글리콜디메타아크릴레이드 등이 사용된다.The primer is prepared by mixing 20-30 wt% of chlorinated polyolefin and 40-60 wt% of toluene with a polymer obtained by mixing 10-15 wt% of ethylene vinyl acetate and 10-15 wt% of an acrylate compound. The ethylene vinyl acetate is preferably an ethylene vinyl acetate resin having a melt index of 3 to 6 and a vinyl acetate content of 20 to 35. In addition, the acrylate compound isobornyl acrylate, isobornyl methacrylate, hydroxyethyl methacrylate, hydroxyethyl acrylate, methacrylic acid, acrylic acid, methyl methacrylate, ethylene glycol dimethacrylate, triethylene Glycol dimethacrylate and the like are used.

전술한 바와 같이 본 발명에 따르면 휴대폰 케이스를 제조할 때 도료코팅층에 자외선의 강도 변화에 따라 색상이 변하는 광호변성 화합물이 포함되어 있기 때 문에 휴대폰 사용시 휴대폰의 색상이 임의로 변색되어 사용자로 하여금 환상적인 심미감을 줄 수 있고, 회사 로고나 문자 등이 실크인쇄된 부분에 도료코팅층 즉, 휴대폰 케이스의 바탕색과 자외선 노출시 보색을 이루는 광호변성 화합물이 포함되어 있어 자외선의 강도 변화에 따라 상호 보색되면서 변하므로 더욱 심미감을 높일 수 있다.As described above, according to the present invention, since the coating layer contains a photochromic compound that changes color according to the change in the intensity of ultraviolet rays, the color of the mobile phone is randomly discolored when the mobile phone is used, thereby providing a fantastic aesthetic. A silky-printed part of the company logo or text contains a coating layer, ie, a photochromic compound that forms the background color of the mobile phone case and complementary colors when exposed to UV rays. I can raise a feeling.

Claims (2)

휴대폰 케이스를 사출성형하는 단계(S11);Injection molding a mobile phone case (S11); 사출성형된 휴대폰 케이스의 이물질이나 정전기를 제거하는 단계(S12); Removing foreign substances or static electricity of the injection molded mobile phone case (S12); 폴리우레탄 30∼50wt%, 프탈레이트 에스테르 20∼30wt%, 나프토피란계 화합물 0.1∼3wt%, 이소프로필 알코올 5∼10wt%, 에틸아세테이트 3∼5wt%, 메틸렌클로라이드 5∼12wt%, 메틸이소부틸케톤 1∼3wt%, 크실렌 2∼5wt%, 아세톤 3∼5wt%, 아연 혼합물 5∼12wt%, 산화방지제 0.1∼0.5wt%, UV 차단제 0.1∼0.3wt%, 광안정제 0.1∼0.5wt%, 색소 0.1∼1.0wt%로 구성된 혼합물을 교반하여 이루어진 광호변성 화합물을 제조하는 단계(S13);Polyurethane 30-50wt%, Phthalate ester 20-30wt%, Naphthopyran-based compound 0.1-3wt%, Isopropyl alcohol 5-10wt%, Ethyl acetate 3-5wt%, Methylene chloride 5-12wt%, Methyl isobutyl ketone 1-3 wt%, xylene 2-5 wt%, acetone 3-5 wt%, zinc mixture 5-12 wt%, antioxidant 0.1-0.5 wt%, UV blocker 0.1-0.3 wt%, light stabilizer 0.1-0.5 wt%, pigment 0.1 Preparing a photochromic compound formed by stirring a mixture composed of ˜1.0 wt% (S13); 상기 광호변성 화합물 20∼30wt%를 도료 70∼80wt%와 혼합 교반하여 휴대폰 케이스에 도포하고 경화시켜 도료코팅층을 형성하는 단계(S14);Mixing 20-30 wt% of the photochromic compound with 70-80 wt% of the coating material, stirring and coating the mobile phone case to form a coating layer (S14); 인쇄도료 70∼80wt%에 상기 도료에 혼합된 광호변성 화합물의 색상과 자외선 노출시 보색관계에 있는 광호변성 화합물 20∼30wt%를 혼합하고, 상기 광호변성 화합물이 혼합된 인쇄도료를 상기 도료코팅층에 특정문자 또는 로고로 실크인쇄하는 단계(S15);The color of the photochromic compound mixed in the paint and 20-30 wt% of the photochromic compound having complementary color upon UV exposure are mixed with 70 to 80 wt% of the printing paint, and the printing coating containing the photochromic compound is mixed with the coating layer. Silk printing with a specific letter or logo (S15); 상기 실크인쇄된 특정문자 또는 로고의 가장자리를 따라 상기 도로코팅층이 제거되도록 음각의 레이저 마킹홈을 형성하는 단계(S16): 및Forming a negative laser marking groove to remove the road coating layer along an edge of the silk-printed specific letter or logo (S16): 상기 도료코팅층과 실크인쇄된 부분의 손상을 방지하고 상기 레이저 마킹홈을 메우는 UV 코팅 또는 우레탄코팅 단계(S17);를 포함하는 것을 특징으로 하는 휴 대폰 케이스 제조방법.And a UV coating or urethane coating step (S17) to prevent damage to the coating layer and the silk printed portion and to fill the laser marking grooves (S17). 제1항에 있어서,The method of claim 1, 상기 휴대폰 케이스에 상기 도료코팅층을 형성하기 전에 프라이머 코팅을 하되, 상기 프라이머는 에틸렌비닐아세테이트 10∼15wt%, 아크릴레이트화합물 10∼15wt% 혼합하여 얻은 중합체에 염화폴리올레핀 20∼30wt%, 톨루엔 40∼60wt%을 혼합시켜 교반하여 제조되고, 상기 아크렐레이트 화합물로는 이소보닐아크릴레이트, 이소보닐메타아크릴레이트, 히드록시에틸메타아크릴레이트, 히드록시에틸아크릴레이트, 메타아크릴산, 아크릴산, 메틸메타아크릴레이트, 에틸렌글리콜디메타아크릴레이트, 트리에틸렌글리콜디메타아크릴레이드인 것을 특징으로 하는 휴대폰 케이스 제조방법.Before the coating layer is formed on the mobile phone case, the primer is coated, but the primer is 20-30 wt% of chlorinated polyolefin and 40-60 wt of toluene in a polymer obtained by mixing 10-15 wt% of ethylene vinyl acetate and 10-15 wt% of acrylate compound. It is prepared by mixing the mixture, the acrylate compound isobornyl acrylate, isobornyl methacrylate, hydroxyethyl methacrylate, hydroxyethyl acrylate, methacrylic acid, acrylic acid, methyl methacrylate, Ethylene glycol dimethacrylate, triethylene glycol dimethacrylate, cell phone case manufacturing method characterized in that.
KR1020070004741A 2007-01-16 2007-01-16 Method for manufacturing a photochronic mobile phone KR20080067444A (en)

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KR20160093975A (en) 2015-01-30 2016-08-09 최곤웅 Boss welding apparatus for metal disk plate
CN109575743A (en) * 2018-12-27 2019-04-05 东莞市誉铭新精密技术股份有限公司 A kind of discoloration coating and its manufacture craft of handset shell
KR20190091611A (en) 2018-01-29 2019-08-07 김선우 Color changeable mobile phone case
KR102160610B1 (en) * 2020-04-21 2020-09-28 주식회사 비즈부스터 Composition for molding multifunctional mobile phone case
KR20220012598A (en) 2020-07-23 2022-02-04 신무현 Small electrical and electronic equipment with discoloration display

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KR20030036121A (en) * 2002-12-27 2003-05-09 주식회사 썬보우 Method for preparing polyurethane containing photochromic compound and coating product using the same
KR20040052730A (en) * 2004-04-30 2004-06-23 김용운 Method for manufacturing key button
KR100615809B1 (en) * 2004-05-27 2006-08-25 주식회사 팬택앤큐리텔 A color case react to a temperature in the mobile phone and manufacturing method the same
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160093975A (en) 2015-01-30 2016-08-09 최곤웅 Boss welding apparatus for metal disk plate
KR20190091611A (en) 2018-01-29 2019-08-07 김선우 Color changeable mobile phone case
CN109575743A (en) * 2018-12-27 2019-04-05 东莞市誉铭新精密技术股份有限公司 A kind of discoloration coating and its manufacture craft of handset shell
CN109575743B (en) * 2018-12-27 2021-08-10 东莞华誉精密技术有限公司 Color-changing coating of mobile phone shell and manufacturing process thereof
KR102160610B1 (en) * 2020-04-21 2020-09-28 주식회사 비즈부스터 Composition for molding multifunctional mobile phone case
KR20220012598A (en) 2020-07-23 2022-02-04 신무현 Small electrical and electronic equipment with discoloration display

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