JPS63216790A - Laser marking method - Google Patents
Laser marking methodInfo
- Publication number
- JPS63216790A JPS63216790A JP62049681A JP4968187A JPS63216790A JP S63216790 A JPS63216790 A JP S63216790A JP 62049681 A JP62049681 A JP 62049681A JP 4968187 A JP4968187 A JP 4968187A JP S63216790 A JPS63216790 A JP S63216790A
- Authority
- JP
- Japan
- Prior art keywords
- pigment
- laser
- base material
- wavelength
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 14
- 238000010330 laser marking Methods 0.000 title claims description 11
- 239000000463 material Substances 0.000 claims abstract description 42
- 239000000049 pigment Substances 0.000 claims abstract description 42
- 239000006229 carbon black Substances 0.000 claims abstract description 12
- DZVCFNFOPIZQKX-LTHRDKTGSA-M merocyanine Chemical compound [Na+].O=C1N(CCCC)C(=O)N(CCCC)C(=O)C1=C\C=C\C=C/1N(CCCS([O-])(=O)=O)C2=CC=CC=C2O\1 DZVCFNFOPIZQKX-LTHRDKTGSA-M 0.000 claims abstract description 4
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract 4
- 229910052786 argon Inorganic materials 0.000 claims abstract 2
- 230000001678 irradiating effect Effects 0.000 abstract description 5
- 239000011347 resin Substances 0.000 abstract description 4
- 229920005989 resin Polymers 0.000 abstract description 4
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000004040 coloring Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 239000000523 sample Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 208000018583 New-onset refractory status epilepticus Diseases 0.000 description 1
- 241000872198 Serjania polyphylla Species 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 125000000123 silicon containing inorganic group Chemical group 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明はレーザビームを照射してマー士ンジを施すレ
ーザマーキング方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a laser marking method for applying a margin by irradiating a laser beam.
レーザビームによシ合成物質の物体にマー＋ンクする方
法に関しては特開昭５６−１４４９９５号公報に開示さ
れている。この従来方法は合成物質表面が染料と珪素含
有無機化合物または珪素を含有する染料を含むものとし
、この表面を表面上で測定して少くとも１００ＯＫＶ／
ｄの強さを有するレーザビームに曝すことによシマー牛
ンジするというもので、レーザビームの照射によシ染料
を分解して照射部を局部的に変色させてマー士ンジしよ
うとするものである。A method of marking a synthetic material object with a laser beam is disclosed in Japanese Patent Application Laid-Open No. 144995/1983. This conventional method requires that the synthetic material surface contains a dye and a silicon-containing inorganic compound or a silicon-containing dye, and that the surface has at least 100 OKV/
The method is to remove the shimmer by exposing it to a laser beam with an intensity of d. The laser beam irradiation decomposes the dye and causes local discoloration of the irradiated area to remove the shimmer. be.
ところが、レーザエネル４２〜ＩＯＪ／ｃｊ、ノ〜ルス
幅はぼＬｍｓｅｅ以下の短い時間で照射した場合は、染
料の分解は起こらない。染料の分解、変質で変色させよ
うとすると、エネル４量は同じでも、化学変化を起こす
だけの長い時間、少くとも１００倍の時問が要る。ま念
、強いレーザビームを照射すると照射部がほれてしまう
。さらに得られるマークはあまシ鮮明なものではなかっ
た。However, when irradiation is performed for a short time with a laser energy of 42 to IOJ/cj and a Norse width of about Lmsee or less, the dye does not decompose. If you try to change the color by decomposing or changing the quality of the dye, even if the amount of energy is the same, it will take a long time to cause the chemical change, at least 100 times as long. Unfortunately, if you irradiate it with a strong laser beam, the irradiated part will crack. Furthermore, the marks obtained were not very clear.
上記のように従来のレーザマーキング方法では、染料を
分解させ変色させようとするため長時間を要し作業性が
悪く、マークの鮮明度が劣るという問題点かあつ念。As mentioned above, conventional laser marking methods require a long time to decompose the dye and change color, resulting in poor workability and poor mark clarity.
この発明はかかる問題点を解決するためになされたもの
で、短時間に作業性良く鮮明にマーキングできるレーザ
マーキング方法を得ることを目的とする。The present invention has been made to solve these problems, and an object of the present invention is to provide a laser marking method that enables clear marking with good workability in a short period of time.
この発明のレーザマーキング方法は、母材に着色顔料を
含有させた材料に、母材に対して着色顔料に選択的に吸
収される波長のレーザビームを照射して、上記着色顔料
を上記母材から除去して上記レーザビームの照射部分を
脱色するようにしたものである。In the laser marking method of the present invention, a material whose base material contains a colored pigment is irradiated with a laser beam having a wavelength that is selectively absorbed by the colored pigment with respect to the base material. The irradiated portion of the laser beam is bleached by removing the irradiated portion from the laser beam.
この発明においては着色顔料が選択的に除去されるため
、レーザビームの照射部分は脱色され（母材本来の色に
なシ）、非照射部分のもとの色（着色顔料を含有した材
料の色）と良好なコントラストが得られ、マークの鮮明
度が向上する。In this invention, since the colored pigment is selectively removed, the part irradiated with the laser beam is bleached (not the original color of the base material), and the original color of the non-irradiated part (of the material containing the colored pigment) is bleached. This provides good contrast with the color (color) and improves the clarity of the mark.
以下、この発明の一実施例のレーザマーキング方法を図
に基いて説明する。第１図（ａ）、（ｂ）はこの方法の
動作を説明するため、供試材料を模式的に示す断面図で
、（−）はレーザビーム照射前の材料を、（ｂ）はし−
ザピーム照射時の材料を表わしている。Hereinafter, a laser marking method according to an embodiment of the present invention will be explained based on the drawings. Figures 1 (a) and (b) are cross-sectional views schematically showing the sample material in order to explain the operation of this method, where (-) shows the material before laser beam irradiation, and (b) -
This shows the material during Zapeem irradiation.
図において、（１）は着色顔料、この場合はカーボンブ
ラック、（２）はマーキングされる材料、この場合の組
成については第１表に記す。（２＆）は材料（２）の母
材、（３）は母材（２ａ）に対して着色顔料ｔ１）に選
択的に吸収される波長のレーザビームで、この場合は１
０６０ ｎｍの波長のＹＡＧレーザを用いれ。その装置
仕様及び照射条件については第２表に記す。（４）は材
料（２）から除去された着色顔料である。In the figure, (1) is a colored pigment, in this case carbon black, and (2) is a marking material, the composition of which is shown in Table 1. (2 &) is the base material of material (2), (3) is a laser beam with a wavelength that is selectively absorbed by the colored pigment t1) with respect to the base material (2a), in this case 1
A YAG laser with a wavelength of 0.060 nm was used. The device specifications and irradiation conditions are listed in Table 2. (4) is the colored pigment removed from material (2).
第 １ 表
第 ２ 表
カーボンブラックによシ黒色に着色され之マー士ンジに
供される材料（２）に第２表に示す装置仕様及び照射条
件で波長１０６０ ｎｍのＹＡＧレーザビーム（３）を
集光して照射し、円形のマーキングを行ったところ、円
形のレーザビーム（３）照射部分が黄白色となシ、鮮明
なマークが得られ念。これは母材（２ａ）はこのレーザ
ビームを吸収せず透過してしまうが、着色顔料のカーボ
ンブラックｆｌ）はよく吸収する念め、その温度は急激
に上昇する。この時、周囲の母材（２ａ）に含まれる樹
脂成分も温度上昇して蒸発し、これに伴って第１図（ｂ
）に示すようにカーボンブラック（４）が表面から飛び
出し除去されるためと思われる。その結果レーザビーム
（３）の照射部分は黒色顔料のカーボンブラックｆｔ）
が選択的に除去されて脱色され、母材（２ａ）本来の黄
色自となシ、非照射部分の最初の黒色表面と鮮明なコン
トラストを生じ、鮮明度の高いマークが得られた。Table 1 Table 2 A YAG laser beam (3) with a wavelength of 1060 nm was applied to the material (2) that was colored black with carbon black and was to be subjected to merging using the equipment specifications and irradiation conditions shown in Table 2. When I focused the light and made a circular marking, the area irradiated by the circular laser beam (3) turned yellow-white, making it possible to obtain a clear mark. This is because the base material (2a) does not absorb this laser beam but transmits it, but the coloring pigment carbon black (fl) absorbs it well, so its temperature rises rapidly. At this time, the temperature of the resin component contained in the surrounding base material (2a) also rises and evaporates, as shown in Figure 1 (b).
), this seems to be because carbon black (4) jumps out from the surface and is removed. As a result, the irradiated part of the laser beam (3) is made of black pigment carbon black (ft)
was selectively removed and decolorized, creating a sharp contrast between the original yellow color of the base material (2a) and the initial black surface of the non-irradiated area, resulting in a mark with high definition.
このマーキングはレーザビームｆ！２〜ｘｏＪ／−、パ
ルス巾１ｍ５ｅｃ以下の時間で、レーザビームを照射す
るという作業だけで、短時間に簡単に実施でき念。This marking is a laser beam f! It can be easily carried out in a short time by simply irradiating a laser beam with a pulse width of 2~xoJ/- and a pulse width of 1 m5 ec or less.
第２図（ａ）、（ｂ）は比較例の動作を説明する之め、
供試材料を模式的に示す断面図で、（＆）はレーザビー
ム照射前の材料を、（ｂ）Ｖ′ｉレーザビーム照射照射
材料を表わしている。図において、（１）、１１． （
２ｍ）は実施例と同様のもので、 （３ｍ）はカーボン
ブラック［１）及び母材（２ａ）ともによく吸収される
波長のレーザビームで、この場合は １０．６００ ｎ
ｍのＣＯ２レーザである。FIGS. 2(a) and 2(b) are for explaining the operation of the comparative example.
2 is a cross-sectional view schematically showing a sample material, (&) represents the material before laser beam irradiation, and (b) represents the material irradiated with V'i laser beam. In the figure, (1), 11. (
2m) is the same as in the example, and (3m) is a laser beam with a wavelength that is well absorbed by both the carbon black [1] and the base material (2a), in this case 10.600 n.
m CO2 laser.
この比較例の場合はカーボンブラック（１）及び母材（
２ａ）ともＣＯ２レーザビーム（３ａ）をよく吸収する
ので、照射部分全体の温度が急上昇し蒸発する。その結
果、カーボンブラック（１）は選択的に除去されず、照
射部分に残留する念め、脱色されず、茶褐色の黒っぽい
マークとなシ、鮮明度が低かった。In the case of this comparative example, carbon black (1) and base material (
Since both 2a) absorb the CO2 laser beam (3a) well, the temperature of the entire irradiated area rises rapidly and evaporates. As a result, carbon black (1) was not selectively removed and remained in the irradiated area, so it was not bleached and a dark brown mark was formed, with low definition.
なお、上記実施例では、材料として母材に充てん剤とし
て５ｉ０２を含有するものを示したが、８４０２でなく
他の充てん剤でも、また全く含有しなくても良く同様の
効果を奏する。また母材に含まれる樹脂もエボ士シ樹脂
、フェノール樹脂に限らず、他のものでも良く、同様の
効果を奏し、材料組成は表１に限定されるものではない
。In the above embodiments, the base material contains 5i02 as a filler, but other fillers other than 8402 or no filler may be used to achieve the same effect. Further, the resin contained in the base material is not limited to the epoxy resin and the phenol resin, and other resins may be used to achieve the same effect, and the material composition is not limited to those shown in Table 1.
また、着色顔料として、カーボンブラックを例に示した
が、他のものでも良く、例えば黄色に着色するアリメチ
ン系顔料、橙色に着色するア・Ｊ系顔料、青緑色に着色
するメロシアニン系１料等が用いられ、母材との組み合
せによし同様の鮮明なマークが得られる。なお、照射す
るレーザビームは母材との兼ね合いで着色顔料に選択吸
収される波長のレーザビームを選択する必要がある。カ
ーボンブラックの場合は１９７〜１０６４ ａｍの波長
のレーザビーム、アリメチン系顔料、アリ系顔料及びメ
ロシアニン系顔料の場合は４００〜７００ ｎｔｎの波
長のレーザビームを用いるとよい。Although carbon black is shown as an example of a coloring pigment, other pigments may also be used, such as arimethine pigments that color yellow, A/J pigments that color orange, merocyanine 1 pigments that color blue-green, etc. is used, and a similar clear mark can be obtained when combined with the base material. Note that it is necessary to select a laser beam to be irradiated with a wavelength that is selectively absorbed by the colored pigment in consideration of the base material. In the case of carbon black, a laser beam with a wavelength of 197 to 1064 am is preferably used, and in the case of alimethine pigments, ant pigments, and merocyanine pigments, a laser beam with a wavelength of 400 to 700 ntn is preferably used.
さらにレーザビームとしてＹＡＧレーザを例に示し九が
、アル：ｊ：／レーザ、エキシマレーザでも同様の効果
を奏する。Further, although a YAG laser is used as an example of the laser beam, similar effects can be obtained with an Al:j:/ laser or an excimer laser.
さらにまた単にレーザビームを集光して照射し円形のマ
ー士ンジをする場合について示したが、例えばマスクを
介してレーザビームを照射することによ）、必要な文字
などのパターンを簡単に短時間でマー士ンタできる。Furthermore, although we have shown the case of simply condensing and irradiating a laser beam to create a circular margin, for example, by irradiating the laser beam through a mask), it is possible to easily shorten patterns such as necessary characters. You can do it in time.
以上のように、この発明によれば、母材に着色顔料を含
有させた材料に、上記母材に対して上記着色顔料を選択
的に吸収される波長のレーザビームを照射して、上記着
色顔料を上記母材から除去して上記レーザビームの照射
部分を脱色することによシ、短時間で作業性良く鮮明に
マー牛：／りできる効果がある。As described above, according to the present invention, a material containing a coloring pigment in the base material is irradiated with a laser beam having a wavelength that selectively absorbs the coloring pigment to the base material, thereby coloring the material. By removing the pigment from the base material and decolorizing the area irradiated with the laser beam, it is possible to print sharply and clearly in a short time with good workability.
第１図（ｍ）、（ｂ）はこの発明の一実施例のレーザマ
ーキング方法に係わる模式的断面図、第２図（ａ）、（
ｂ）は比較例に係わる模式的断面図である。
図において、＋１）は着色顔料、（２）は材料、（２ｍ
）は母材、（３）は母材に対して着色顔料に選択的に吸
収される波長のレーザビームである。
なお、図中、同一符号は同−又は相当部分を示す。FIGS. 1(m) and 1(b) are schematic sectional views relating to a laser marking method according to an embodiment of the present invention, and FIGS. 2(a) and (
b) is a schematic cross-sectional view of a comparative example. In the figure, +1) is a colored pigment, (2) is a material, and (2m
) is the base material, and (3) is a laser beam with a wavelength that is selectively absorbed by the colored pigment with respect to the base material. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.
Claims (4)
対して上記着色顔料に選択的に吸収される波長のレーザ
ビームを照射して、上記着色顔料を上記母材から除去し
て上記レーザビームの照射部分を脱色するようにしたレ
ーザマーキング方法。(1) A material whose base material contains a colored pigment is irradiated with a laser beam having a wavelength that is selectively absorbed by the colored pigment to remove the colored pigment from the base material. A laser marking method in which the portion irradiated with the laser beam is bleached.
波長は１９７〜１０６４ｎｍである特許請求の範囲第１
項記載のレーザマーキング方法。(2) The colored pigment is carbon black, and the wavelength of the laser beam is 197 to 1064 nm.
Laser marking method described in section.
メロシアニン系顔料のいずれか一種で、レーザビームの
波長は４００〜７００ｎｍである特許請求の範囲第１項
記載のレーザマーキング方法。(3) The laser marking method according to claim 1, wherein the colored pigment is any one of an azomethine pigment, an azo pigment, and a merocyanine pigment, and the wavelength of the laser beam is 400 to 700 nm.
及びエキシマレーザのいずれかである特許請求の範囲第
１項ないし第３項のいずれかに記載のレーザマーキング
方法。(4) The laser marking method according to any one of claims 1 to 3, wherein the laser used is one of a YAG laser, an argon laser, and an excimer laser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62049681A JP2615596B2 (en) | 1987-03-04 | 1987-03-04 | Laser marking method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62049681A JP2615596B2 (en) | 1987-03-04 | 1987-03-04 | Laser marking method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63216790A true JPS63216790A (en) | 1988-09-09 |
| JP2615596B2 JP2615596B2 (en) | 1997-05-28 |
Family
ID=12837919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62049681A Expired - Lifetime JP2615596B2 (en) | 1987-03-04 | 1987-03-04 | Laser marking method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2615596B2 (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02136288A (en) * | 1988-11-17 | 1990-05-24 | Dainippon Ink & Chem Inc | Laser marking material and laser marking method |
| US5792807A (en) * | 1993-01-19 | 1998-08-11 | Nippon Kayaku Kabushiki Kaisha | Composition adaptable or suitable for being marked and molding thereof |
| US6075223A (en) * | 1997-09-08 | 2000-06-13 | Thermark, Llc | High contrast surface marking |
| US6315202B2 (en) * | 1997-08-11 | 2001-11-13 | Technolines, Llc. | Material coding using lasers |
| JP2002278465A (en) * | 2001-03-19 | 2002-09-27 | Max Co Ltd | Electric pole number tag and producing system of the same |
| US6852948B1 (en) | 1997-09-08 | 2005-02-08 | Thermark, Llc | High contrast surface marking using irradiation of electrostatically applied marking materials |
| US7238396B2 (en) | 2002-08-02 | 2007-07-03 | Rieck Albert S | Methods for vitrescent marking |
| JP2010124718A (en) * | 2008-11-26 | 2010-06-10 | Sekisui Jushi Co Ltd | Resin-coated pipe |
| JP2010188710A (en) * | 2009-02-20 | 2010-09-02 | Inoac Corp | Method for manufacturing member with stitch pattern |
| KR20170009401A (en) | 2015-07-17 | 2017-01-25 | 한국엔지니어링플라스틱 주식회사 | Polyoxymethylene composition using laser making |
| US9744559B2 (en) | 2014-05-27 | 2017-08-29 | Paul W Harrison | High contrast surface marking using nanoparticle materials |
| CN109370279A (en) * | 2018-10-24 | 2019-02-22 | 杨定吉甫 | It is a kind of can laser color label can brushing composition |
| KR20220056412A (en) | 2020-10-28 | 2022-05-06 | 코오롱플라스틱 주식회사 | Polyoxymethylene Resin Composition for Laser Marking |
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| JPS57116620A (en) * | 1980-11-27 | 1982-07-20 | Siemens Ag | Manufacture of uniform plastic part having various symbol through injection molding |
| JPS5818290A (en) * | 1981-07-28 | 1983-02-02 | Dainippon Printing Co Ltd | Image-forming material and formation of image and manufacture of lithographic plate therewith |
| JPS58224447A (en) * | 1982-06-24 | 1983-12-26 | Ricoh Co Ltd | Light information recording medium |
| JPS60184888A (en) * | 1984-03-05 | 1985-09-20 | Daicel Chem Ind Ltd | Laser recording film |
| JPS60202119A (en) * | 1984-03-26 | 1985-10-12 | Nec Corp | Resin composition and laser marking thereof |
| JPS61192737A (en) * | 1985-02-05 | 1986-08-27 | チバ・ガイギー・アクチエンゲゼルシヤフト | Marking method for pigment system by laser |
| JPS62209841A (en) * | 1986-03-10 | 1987-09-16 | Nec Corp | Semiconductor device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02136288A (en) * | 1988-11-17 | 1990-05-24 | Dainippon Ink & Chem Inc | Laser marking material and laser marking method |
| US5792807A (en) * | 1993-01-19 | 1998-08-11 | Nippon Kayaku Kabushiki Kaisha | Composition adaptable or suitable for being marked and molding thereof |
| US6315202B2 (en) * | 1997-08-11 | 2001-11-13 | Technolines, Llc. | Material coding using lasers |
| US6852948B1 (en) | 1997-09-08 | 2005-02-08 | Thermark, Llc | High contrast surface marking using irradiation of electrostatically applied marking materials |
| US6313436B1 (en) * | 1997-09-08 | 2001-11-06 | Thermark, Llc | High contrast surface marking using metal oxides |
| US6075223A (en) * | 1997-09-08 | 2000-06-13 | Thermark, Llc | High contrast surface marking |
| US6855910B2 (en) * | 1997-09-08 | 2005-02-15 | Thermark, Llc | High contrast surface marking using mixed organic pigments |
| JP2002278465A (en) * | 2001-03-19 | 2002-09-27 | Max Co Ltd | Electric pole number tag and producing system of the same |
| US7238396B2 (en) | 2002-08-02 | 2007-07-03 | Rieck Albert S | Methods for vitrescent marking |
| JP2010124718A (en) * | 2008-11-26 | 2010-06-10 | Sekisui Jushi Co Ltd | Resin-coated pipe |
| JP2010188710A (en) * | 2009-02-20 | 2010-09-02 | Inoac Corp | Method for manufacturing member with stitch pattern |
| US9744559B2 (en) | 2014-05-27 | 2017-08-29 | Paul W Harrison | High contrast surface marking using nanoparticle materials |
| KR20170009401A (en) | 2015-07-17 | 2017-01-25 | 한국엔지니어링플라스틱 주식회사 | Polyoxymethylene composition using laser making |
| CN109370279A (en) * | 2018-10-24 | 2019-02-22 | 杨定吉甫 | It is a kind of can laser color label can brushing composition |
| KR20220056412A (en) | 2020-10-28 | 2022-05-06 | 코오롱플라스틱 주식회사 | Polyoxymethylene Resin Composition for Laser Marking |
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| JP2615596B2 (en) | 1997-05-28 |
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