JP2000308983A - Laser marking procedure for surface-printed steel sheet - Google Patents

Laser marking procedure for surface-printed steel sheet

Info

Publication number
JP2000308983A
JP2000308983A JP11120983A JP12098399A JP2000308983A JP 2000308983 A JP2000308983 A JP 2000308983A JP 11120983 A JP11120983 A JP 11120983A JP 12098399 A JP12098399 A JP 12098399A JP 2000308983 A JP2000308983 A JP 2000308983A
Authority
JP
Japan
Prior art keywords
steel sheet
primer
color
laser marking
laser beam
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.)
Pending
Application number
JP11120983A
Other languages
Japanese (ja)
Inventor
Takanao Marukawa
隆尚 丸川
Yukinori Yasei
幸教 野生
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Life Solutions Asahi Co Ltd
Original Assignee
Asahi National Lighting Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Asahi National Lighting Co Ltd filed Critical Asahi National Lighting Co Ltd
Priority to JP11120983A priority Critical patent/JP2000308983A/en
Publication of JP2000308983A publication Critical patent/JP2000308983A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/02—Iron or ferrous alloys
    • B23K2103/04—Steel or steel alloys

Landscapes

  • Laser Beam Processing (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a laser marking procedure for surface-painted steel sheets that can quickly and precisely marks them differently from a marking-seal technique. SOLUTION: This laser marking procedure for surface-painted steel sheets is desirable marking done by radiating a laser beam 5 on the surface of a surface-painted steel sheet 4 comprising a steel sheet 1 painted on one surface with a primer 2 of such a synthetic resin base as a polyester one and a coating 3 of such a synthetic resin system as a polyester one colored differently from the primer 2. The radiation of the laser beam 5 exposes the primer 2 in the surface, so that its color presents itself as an exposure 6 against the color of the coating 3.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、表面塗装鋼板にお
けるレーザマーキング法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laser marking method for a surface coated steel sheet.

【０００２】[0002]

【従来の技術】照明器具の本体には表面塗装鋼板が使用
されることが多いが、種々の表示を行う場合は表示シー
ルを表面塗装鋼板に貼りつけていた。2. Description of the Related Art Surface-painted steel sheets are often used for the main body of lighting equipment, but in the case of performing various displays, display seals are attached to the surface-painted steel sheets.

【０００３】[0003]

【発明が解決しようとする課題】しかし、シール貼り工
程に手数がかかり、ゆがんで貼られてしまうことも往々
にして発生していた。本発明はこのような解決すべき課
題を鑑み、そのような表示シールに代えて表示を素早く
的確に行える表面塗装鋼板におけるレーザマーキング法
を提供することを目的とする。However, the sticking process is troublesome, and the sticking is often distorted. In view of the problems to be solved, an object of the present invention is to provide a laser marking method for a surface-coated steel sheet that can quickly and accurately perform display in place of such a display seal.

【０００４】[0004]

【課題を解決するための手段】請求項に示した通りであ
る。Means for solving the problems are as described in the claims.

【０００５】[0005]

【発明の実施の形態】次に、本発明の実施形態を説明す
るが、それはあくまで本発明に基づいて採択された例示
的な実施形態であり、本発明をその実施形態に特有な事
項に基づいて限定解釈してはならず、本発明の技術的範
囲は、請求項に示した事項さらにはその事項と実質的に
等価である事項に基づいて定めなければならない。BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the present invention will be described. However, this is merely an exemplary embodiment adopted based on the present invention, and the present invention is described based on matters specific to the embodiment. Therefore, the technical scope of the present invention should be determined based on the matters stated in the claims and matters substantially equivalent to the matters.

【０００６】図示の実施形態は、鋼板１の表面にポリエ
ステル系などの合成樹脂系のプライマー２とこのプライ
マー２とは異なる色のポリエステル系などの合成樹脂系
の塗料３を重ねた表面塗装鋼板４の表面にレーザ光５を
照射して所望のマーキングを行う方法であって、プライ
マー２を表面に露呈させるようにレーザ光５を照射する
ことにより、プライマー２の色が塗料３の色と対比され
て表出６される表面塗装鋼板４におけるレーザマーキン
グ法である。The illustrated embodiment is a surface coated steel sheet 4 in which a synthetic resin-based primer 2 such as polyester and a synthetic resin-based paint 3 such as polyester different in color from the primer 2 are superposed on the surface of a steel sheet 1. Is a method for performing a desired marking by irradiating a laser beam 5 on the surface of the paint, and by irradiating the laser beam 5 so as to expose the primer 2 to the surface, the color of the primer 2 is compared with the color of the paint 3. This is a laser marking method for the surface-coated steel sheet 4 shown in FIG.

【０００７】さらに詳述すれば、鋼板１の表面には一般
的にはさらに亜鉛層７を介してプライマー２を重ねてあ
る。プライマー２の色は例えばモスグリーン色であり、
塗料３の色は白色である。そして、表面塗装鋼板４の表
面にレーザ光５を照射する際、深さ方向において、塗料
３は全部溶融蒸発するが、プライマー２は全部は溶融蒸
発しないように調節して走査する。そうすると、プライ
マー２のモスグリーン色が塗料３の白色と対比されて、
所望の文字・図形などとして表出６され、従来の表示シ
ールの代わりとしての表示を素早く的確に行える。More specifically, the primer 2 is generally further laminated on the surface of the steel sheet 1 via a zinc layer 7. The color of the primer 2 is, for example, moss green,
The color of the paint 3 is white. When the surface of the surface coated steel plate 4 is irradiated with the laser beam 5, the coating 3 is melted and evaporated in the depth direction, but the primer 2 is adjusted so as not to be melted and evaporated. Then, the moss green color of the primer 2 is compared with the white color of the paint 3,
It is displayed 6 as desired characters / graphics, etc., and can be displayed quickly and accurately as a substitute for a conventional display sticker.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の実施形態を示す断面図FIG. 1 is a sectional view showing an embodiment of the present invention.

【符号の説明】[Explanation of symbols]

１ 鋼板 ２ プライマー ３ 塗料 ４ 表面塗装鋼板 ５ レーザ光 ６ 表出部 DESCRIPTION OF SYMBOLS 1 Steel plate 2 Primer 3 Paint 4 Surface-painted steel plate 5 Laser light 6 Exposure part

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 鋼板の表面に合成樹脂系のプライマーと
このプライマーとは異なる色の合成樹脂系の塗料を重ね
た表面塗装鋼板の表面にレーザ光を照射して所望のマー
キングを行う方法であって、プライマーを表面に露呈さ
せるようにレーザ光を照射することにより、プライマー
の色が塗料の色と対比されて表出される表面塗装鋼板に
おけるレーザマーキング法。1. A method of performing a desired marking by irradiating a laser beam on a surface of a steel sheet coated with a synthetic resin-based primer and a synthetic resin-based paint having a different color from the primer on the surface of the steel sheet. A laser marking method for a surface-coated steel sheet, in which a primer is exposed to a laser beam so as to be exposed on the surface, whereby the color of the primer is expressed in comparison with the color of the paint.
JP11120983A 1999-04-28 1999-04-28 Laser marking procedure for surface-printed steel sheet Pending JP2000308983A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11120983A JP2000308983A (en) 1999-04-28 1999-04-28 Laser marking procedure for surface-printed steel sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11120983A JP2000308983A (en) 1999-04-28 1999-04-28 Laser marking procedure for surface-printed steel sheet

Publications (1)

Publication Number Publication Date
JP2000308983A true JP2000308983A (en) 2000-11-07

Family

ID=14799885

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11120983A Pending JP2000308983A (en) 1999-04-28 1999-04-28 Laser marking procedure for surface-printed steel sheet

Country Status (1)

Country Link
JP (1) JP2000308983A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003024868A (en) * 2001-07-16 2003-01-28 Japan Aviation Electronics Industry Ltd Laser marking method and coating material used for its method
JP2007230114A (en) * 2006-03-02 2007-09-13 Nippon Steel & Sumikin Coated Sheet Corp Coated metal sheet
JP2021187967A (en) * 2020-06-01 2021-12-13 株式会社オリジン Coating composition for laser etching, manufacturing method of its main agent, molding and its manufacturing method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003024868A (en) * 2001-07-16 2003-01-28 Japan Aviation Electronics Industry Ltd Laser marking method and coating material used for its method
JP2007230114A (en) * 2006-03-02 2007-09-13 Nippon Steel & Sumikin Coated Sheet Corp Coated metal sheet
JP2021187967A (en) * 2020-06-01 2021-12-13 株式会社オリジン Coating composition for laser etching, manufacturing method of its main agent, molding and its manufacturing method
JP7160861B2 (en) 2020-06-01 2022-10-25 株式会社オリジン COATING COMPOSITION FOR LASER ETCHING, METHOD FOR MANUFACTURING MAIN INGREDIENT THEREOF, MOLDED BODY AND METHOD FOR FORMING THE SAME

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