JPS61262187A - Marking method by laser - Google Patents

Marking method by laser

Info

Publication number
JPS61262187A
JPS61262187A JP60105219A JP10521985A JPS61262187A JP S61262187 A JPS61262187 A JP S61262187A JP 60105219 A JP60105219 A JP 60105219A JP 10521985 A JP10521985 A JP 10521985A JP S61262187 A JPS61262187 A JP S61262187A
Authority
JP
Japan
Prior art keywords
marking
marked
laser
condensing lens
polyethylene
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.)
Granted
Application number
JP60105219A
Other languages
Japanese (ja)
Other versions
JPH0263074B2 (en
Inventor
Koji Fujisawa
藤沢　宏司
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.)
Toppan Inc
Original Assignee
Toppan Printing 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 Toppan Printing Co Ltd filed Critical Toppan Printing Co Ltd
Priority to JP60105219A priority Critical patent/JPS61262187A/en
Publication of JPS61262187A publication Critical patent/JPS61262187A/en
Publication of JPH0263074B2 publication Critical patent/JPH0263074B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/24—Ablative recording, e.g. by burning marks; Spark recording

Landscapes

  • Thermal Transfer Or Thermal Recording In General (AREA)

Abstract

PURPOSE:To prevent marking inferiority and the lowering in marking efficiency due to the scattering of combustibles, by placing a continuously moving transparent plastic film between a condensing lens and an object to be marked of which the surface comprises a plastic layer. CONSTITUTION:In a method for applying marking to the predetermined area of an object to be marked being a laminate film comprising polyester/ polyethylene/aluminum foil/polyethylene by a marking apparatus 2, the marking apparatus 2 is constituted so that laser beam oscillated from a laser oscillator 3 is transmitted through a mask 4 and subsequently passed through a condensing lens 5 to perform marking. At the time of marking, laser is projected through a polyethylene film 6 continuously moving between the object 1 to be marked and the condensing lens 5. By this method, the combustibles of the plastic layer on the surface of the object 1 to be marked are not adhered to the condensing lens 5 and can be shielded by the polyethylene film. Even if the combustibles are adhered to said lens 5, because the polyethylene film continuously moves, a laser beam is not prevented from irradiating the object to be marked and good marking is performed.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明はレーザーにより、製造月日、ストロ一孔等をマ
ーキングするマーキング方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a marking method for marking manufacturing date, straw hole, etc. using a laser.

〔従来技術およびその問題点〕[Prior art and its problems]

し〒ザーを利用したマーキングは、従来から行なわれて
おり、これは低エネルギーのレーザーをマスク透過後に
表面がプラスチックフィルムからなる被マーキング体に
照射し、表面を燃焼させて、他の部分との間に強度的差
異を設ける技術が特開昭５５−１５１４９６号に示され
ている。この方法により、製造月日、ストロ一孔等をマ
ーキングすることは可能となったが、マーキングの際、
プラスチックフィルムの表面を燃焼させて形成するので
、プラスチックフィルムの燃焼物が飛散し、レーザーの
集光レンズに付着してしまい、当初の目的を達成できな
くなってしまっていた。これを防止するため、集光レン
ズにプラスチック製のキャップを取付けることにより、
集光レンズの清掃を省くことはできるが、キャップに燃
焼物が付着すると、同様にマーキング不良が発生するた
め、その都度、キャップを交換しなければならなかった
。そのためマーキングを長時間連続的に行なうことは不
可能であった◇ 〔解決しようとする問題点〕 低エネルギーのレーザーをマスクを透過後、集光レンズ
を介して、表面がプラスチック層からなる被マーキング
体に照射し、表面を燃焼、させてマーキングするマーキ
ング方法において、表面のプラスチック層を燃焼させた
燃焼物の飛散によるマーキング不良、マーキング効率の
低下を防止しようとするものである。Marking using a laser has been carried out for a long time.This method involves irradiating a low-energy laser onto the object to be marked, whose surface is made of plastic film, after passing through a mask, and burning the surface to prevent it from interfering with other parts. A technique for creating a difference in strength between the two is shown in Japanese Patent Laid-Open No. 151496/1983. With this method, it became possible to mark the manufacturing date, stroke hole, etc., but when marking,
Since it is formed by burning the surface of a plastic film, the burned plastic film scatters and adheres to the laser focusing lens, making it impossible to achieve the original purpose. To prevent this, by attaching a plastic cap to the condenser lens,
Although cleaning of the condenser lens can be omitted, if combustion material adheres to the cap, marking defects will occur as well, so the cap must be replaced each time. Therefore, it was impossible to perform marking continuously for a long time◇ [Problem to be solved] A low-energy laser passes through a mask and then passes through a condensing lens to mark the marked object whose surface is made of a plastic layer. In a marking method in which the body is irradiated and marked by burning the surface, it is intended to prevent marking defects and a decrease in marking efficiency due to scattering of the combustion material that burns the plastic layer on the surface.

〔問題点を解決するための手段〕[Means for solving problems]

低エネルギーのレーザーをマスクを透過後、集光レンズ
を通して、表面がプラスチック層からなる被マーキング
体に照射する時に、集光レンズと被マーキング体の間に
連続的に移動する透明なプラスチックフィルムを介して
レーザーを照射することにより解決した。When a low-energy laser is transmitted through a mask and then irradiated through a condensing lens to an object to be marked whose surface is made of a plastic layer, a transparent plastic film that continuously moves between the condensing lens and the object to be marked is passed through. The problem was solved by irradiating it with a laser.

〔作　用〕[For production]

レーザーの照射により被マーキング体の表面のプラスチ
ック層の燃焼物が飛散しても、集光レンズには前記燃焼
物が付着せず、連続的にマーキング可能となった。Even if the burnt material on the plastic layer on the surface of the object to be marked is scattered by laser irradiation, the burnt material does not adhere to the condenser lens, making continuous marking possible.

〔実施例〕 本発明の実施例を図面に従い説明する。〔Example〕 Embodiments of the present invention will be described with reference to the drawings.

第１図に示すようにポリエステル／ポリエチレン／アル
ミ箔／ポリエチレンの積層フィルムの被マーキング体（
１）の所定箇所にマーキング装置（２）により、マーキ
ングする方法で、前記マーキング装置１２１は、レーザ
ー発振器（３）から発振されたレーザーをマスク（４）
を透過後、集光レンズ（５１ヲ通して行なうものである
。そして、マーキングの時に前記被マーキング、体（１
）と集光レンズ（５１０間に連続的に移動するポリエチ
レンフィルム（６１ヲ介してレーザーを照射するレーザ
ーによるマーキング方法である。As shown in Figure 1, the object to be marked is made of polyester/polyethylene/aluminum foil/polyethylene laminated film (
In this method, the marking device (2) marks a predetermined location in 1), and the marking device 121 uses a mask (4) to mask the laser oscillated from the laser oscillator (3).
After passing through the condensing lens (51), the marking is performed through the condensing lens (51).
) and a condensing lens (510) This is a laser marking method in which the laser is irradiated through a polyethylene film (61) that moves continuously between the condenser lens (510) and the condensing lens (510).

〔効　果〕〔effect〕

本発明は以上の方法でマーキングを行なうので、被マー
キング体表面のプラスチック層の燃焼物は、集光レンズ
に付着せずポリエチレンフィルムで遮へいすることがで
きる。そして、燃焼物が付着しても、ポリエチレンフィ
ルムは連続的に移動しているので、レーザー光が被マー
キング体に照射するのを妨げることがなく、良好なマー
キングが可能である。Since the present invention performs marking by the method described above, the burned material on the plastic layer on the surface of the object to be marked does not adhere to the condenser lens and can be shielded with a polyethylene film. Since the polyethylene film is continuously moving even if the burning material adheres, it does not prevent the laser beam from irradiating the object to be marked, and good marking is possible.

さらに、従来集光レンズにプラスチック製のキャップを
施し、レーザーによるマーキングを行なっている場合は
、約５分毎に取り換えなければならなかったが、本発明
の方法によれば連続したポリエチレンの長さ分だけ連続
照射可能となり、マーキング効率が向上できた。Furthermore, conventionally, when laser marking was performed using a plastic cap on the condensing lens, it had to be replaced approximately every 5 minutes, but with the method of the present invention, a continuous length of polyethylene can be used. Continuous irradiation is now possible, improving marking efficiency.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は、本発明のマーキング方法の説明図である。 FIG. 1 is an explanatory diagram of the marking method of the present invention.

Claims (2)

【特許請求の範囲】[Claims] （１）低エネルギーのレーザーをマスクを透過後、集光
レンズを通して、表面がプラスチック層からなる被マー
キング体に照射する時に、集光レンズと被マーキング体
の間に連続的に移動する透明なプラスチックフィルムを
介してレーザーを照射するレーザーによるマーキング方
法。(1) When a low-energy laser passes through a mask and then passes through a condenser lens to irradiate the object to be marked whose surface is made of a plastic layer, the transparent plastic continuously moves between the condenser lens and the object to be marked. A laser marking method that irradiates the laser through the film. （２）透明なプラスチックフィルムがポリエチレンフィ
ルムである特許請求の範囲第１項記載のレーザーによる
マーキング方法。(2) The laser marking method according to claim 1, wherein the transparent plastic film is a polyethylene film.
JP60105219A 1985-05-17 1985-05-17 Marking method by laser Granted JPS61262187A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60105219A JPS61262187A (en) 1985-05-17 1985-05-17 Marking method by laser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60105219A JPS61262187A (en) 1985-05-17 1985-05-17 Marking method by laser

Publications (2)

Publication Number Publication Date
JPS61262187A true JPS61262187A (en) 1986-11-20
JPH0263074B2 JPH0263074B2 (en) 1990-12-27

Family

ID=14401554

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60105219A Granted JPS61262187A (en) 1985-05-17 1985-05-17 Marking method by laser

Country Status (1)

Country Link
JP (1) JPS61262187A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5633123A (en) * 1993-12-17 1997-05-27 Minnesota Mining And Manufacturing Company System for ablative imaging by proximity lithography
WO2013131698A1 (en) * 2012-03-05 2013-09-12 Saint-Gobain Glass France Process for producing a laminated glass pane with sensor window

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5633123A (en) * 1993-12-17 1997-05-27 Minnesota Mining And Manufacturing Company System for ablative imaging by proximity lithography
WO2013131698A1 (en) * 2012-03-05 2013-09-12 Saint-Gobain Glass France Process for producing a laminated glass pane with sensor window
US9475268B2 (en) 2012-03-05 2016-10-25 Saint-Gobain Glass France Process for producing a laminated glass pane with sensor window

Also Published As

Publication number Publication date
JPH0263074B2 (en) 1990-12-27

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