JPH01222995A - Laser marking material and marking method - Google Patents

Laser marking material and marking method

Info

Publication number
JPH01222995A
JPH01222995A JP63050351A JP5035188A JPH01222995A JP H01222995 A JPH01222995 A JP H01222995A JP 63050351 A JP63050351 A JP 63050351A JP 5035188 A JP5035188 A JP 5035188A JP H01222995 A JPH01222995 A JP H01222995A
Authority
JP
Japan
Prior art keywords
boric acid
marking
containing inorganic
borate
anhydrous
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
JP63050351A
Other languages
Japanese (ja)
Other versions
JP2701293B2 (en
Inventor
Toshiyuki Kiyonari
俊之 清成
Satoshi Hirabayashi
平林 諭
Naoto Kidokoro
直登 城所
Futoshi Takimoto
滝本 太
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.)
DIC Corp
Original Assignee
Dainippon Ink and Chemicals 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 Dainippon Ink and Chemicals Co Ltd filed Critical Dainippon Ink and Chemicals Co Ltd
Priority to JP63050351A priority Critical patent/JP2701293B2/en
Publication of JPH01222995A publication Critical patent/JPH01222995A/en
Application granted granted Critical
Publication of JP2701293B2 publication Critical patent/JP2701293B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/267Marking of plastic artifacts, e.g. with laser

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)

Abstract

PURPOSE:To perform a sharp marking, by a marking method wherein a laser light is irradiated on the surface of an article made of a material consisting of a boric acid-containing inorganic substance. CONSTITUTION:As a marking material, all boric acid-containing inorganic substances can be used, but a lithium borate anhydride or a calcium borate anhydride is preferably used for especially obtaining superior transparency and color forming properties. The boric acid-containing inorganic substance is incorporated in the amount of 5-80wt.%, preferably 15-60wt.%. If the content is less than 5wt.%, a sharp contrast cannot be obtained. If more than 80wt.%, the physical properties are remarkably deteriorated. A sharp marking can be obtained by irradiating a laser light having a suitable strength on the surface of a resin molded material or resin coated material consisting of the boric acid-containing inorganic substance through a mask.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明はレーザー光を利用してマーキングされるのに好
適な材料及びこの材料を用いたマーキング方法に関し、
例えば電気・電子部品、ケース及び製品等の物品の表面
にマークを表示するのに有効な材料及び方法に関する。
[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a material suitable for marking using laser light and a marking method using this material.
The present invention relates to materials and methods effective for displaying marks on the surfaces of articles such as electrical and electronic parts, cases, and products.

〔従来の技術及び発明が解決しようとする課題〕従来、
半導体、抵抗体、コンデンサー、リレー、スイッチ等の
電気・電子部品、各種電気製品等の物品の表面への文字
・記号等のマーキングは、熱硬化型または紫外線硬化を
のマーキングインキ管用いた印刷により行われている。
[Problems to be solved by conventional techniques and inventions] Conventionally,
Marking of characters, symbols, etc. on the surfaces of electrical and electronic components such as semiconductors, resistors, capacitors, relays, switches, and various electrical products is done by printing using thermosetting or ultraviolet curing marking ink tubes. It is being said.

この方法では微細部品へのマーキングの困難さ、印刷品
質の維持・管理の煩雑さなどの問題がある。また、最近
部品等の物品の表面に直接レーザー光を照射し、表面の
一部分を蒸発或は熱分解により消失嘔せるレーザーマー
キング方法が行われている。しかし、マーキングされる
物品の材質な種々あり、材質により鮮明なマーキングが
出来ないという欠点がある。
This method has problems such as difficulty in marking minute parts and complexity in maintaining and managing printing quality. Recently, a laser marking method has been used in which the surface of an article such as a part is directly irradiated with a laser beam, and a portion of the surface disappears by evaporation or thermal decomposition. However, there are various materials for the articles to be marked, and there is a drawback that clear markings cannot be made depending on the material.

〔課題全解決するための手段〕[Means to solve all problems]

本発明者らは、上記マーキングの欠点を解消すべく鋭意
検討をおこなった結果、含ホウ酸無機物を含有する材料
からなる物品の表面にレーザー光を照射したとき、照射
部分と未照射部分で明瞭なコントラストが見られ、鮮明
なマーキングとなることを見い出し、本発明を完成する
に至った。
The inventors of the present invention have conducted intensive studies to resolve the above-mentioned drawbacks of marking, and have found that when laser light is irradiated on the surface of an article made of a material containing a boric acid-containing inorganic substance, the irradiated and non-irradiated areas are clearly distinguishable. The inventors have discovered that a sharp contrast can be seen and the markings are clear, and have completed the present invention.

すなわち、本発明は、含ホウ酸無機物を含有してなるこ
とを特徴とするレーザーマーキング用材料、及びこの材
料からなる物品の表面にレーザー光を照射してマーク表
示させることを特徴とするマーキング方法を提供するも
のである。
That is, the present invention provides a laser marking material characterized by containing a boric acid-containing inorganic substance, and a marking method characterized by irradiating the surface of an article made of this material with a laser beam to display a mark. It provides:

本発明で用いる含ホウ酸無機物としてはホウ酸亜鉛、ホ
ウ識アルミニウム、ホウ酸マンガン、ホウ酸マグネシウ
ム、ホウ酸リチウム、ホウ酸鋼、ホウ酸コバルト、ホウ
酸ナトリウム、ホウ酸カルシウム、ホウ酸カリウム、ホ
ウ酸バリウム、ホウ酸系ガラス、メタホウ酸カリウム、
メタホウ酸ナトリウム、メタホウ酸バリウム、メタホウ
酸リチウム、メタホウ酸鉛、メタホウ酸カルシウム等が
挙げられる。また、これらの無機物は、結晶水を含んで
いてもよい。
The boric acid-containing inorganic substances used in the present invention include zinc borate, aluminum borate, manganese borate, magnesium borate, lithium borate, steel borate, cobalt borate, sodium borate, calcium borate, potassium borate, Barium borate, borate glass, potassium metaborate,
Examples include sodium metaborate, barium metaborate, lithium metaborate, lead metaborate, calcium metaborate, and the like. Further, these inorganic substances may contain water of crystallization.

本発明のマーキング用材料としては、含ホウ酸無機物を
含有しているものであればよく、例えば含ホウ酸無機物
含有の成形材料や塗装材料が挙げられ、なかでも透明性
及び発色性の良好な塗装材料が得られる点で無水ホウ酸
亜鉛、無水ホウ酸アルミニウム、無水ホウ酸すチュウム
、無水ホウ酸カルシウムが好ましく、特に透明性と発色
性に優れる点で無水ホウ酸すチーウム、無水ホウ酸カル
シウムが好ましい。
The marking material of the present invention may be any material containing a boric acid-containing inorganic substance, such as a molding material or a coating material containing a boric acid-containing inorganic substance. Anhydrous zinc borate, anhydrous aluminum borate, anhydrous sodium borate, and anhydrous calcium borate are preferable from the viewpoint of obtaining a coating material, and anhydrous stylium borate and anhydrous calcium borate are particularly preferable because of their excellent transparency and color development. is preferred.

含ホウ酸無機物の含有量は、本発明のレーザーマーキン
グ材料からなる物品、例えば成形材料を成形してなる成
形品、塗装材料を塗布、硬化させてなる塗膜中の含ホウ
酸無機物の含有量が5〜80重量%、好ましくは15〜
60重量%となる範囲であり、含有量が5重量%未満で
は明瞭なコントラストが得られず、また80重量%を超
えて加えた場合には成形物あるいは塗装物としての物性
が著しく損なわれるのでそれぞれ好ましくない。
The content of the boric acid inorganic substance is the content of the boric acid inorganic substance in an article made of the laser marking material of the present invention, such as a molded product formed by molding a molding material, or a coating film formed by applying and curing a coating material. is 5 to 80% by weight, preferably 15 to 80% by weight.
If the content is less than 5% by weight, clear contrast cannot be obtained, and if it is added in excess of 80% by weight, the physical properties of molded or painted products will be significantly impaired. Each is undesirable.

成形材料に用いるマトリックス材料としては、特にその
種類を限定されるものではないが、押出成形、トランス
ファー成形、射出成形、プロー成形、注型成形、プレス
成形等が可能な熱可塑性樹脂、例えばポリオレフィン樹
脂、塩化ビニル樹脂、ポリスチレン樹脂、アクリル樹脂
、ポリエチレンテレフタレート樹脂、ポリブチレンチレ
フタレ−・ト樹脂、ポリカーゼネート樹脂、ポリアセタ
ール樹脂、ポリフェニレンサルファイド樹脂、ポリアミ
ド樹脂、ポリイミド樹脂、およびこれらの共重合体等、
熱硬化性樹脂、例えばエポキシ樹脂、フェノール樹脂、
エリア樹脂、メラミン樹脂、ポリエステル樹脂、アクリ
ル樹脂、ジアリルフタレート樹脂、ウレタン樹脂、アニ
リン樹脂、フラン樹脂、ポリイミド樹脂、シリコン樹脂
、およびこれらの共重合体等が挙げられる。
The matrix material used in the molding material is not particularly limited in type, but may include thermoplastic resins that can be molded by extrusion, transfer molding, injection molding, blow molding, cast molding, press molding, etc., such as polyolefin resins. , vinyl chloride resin, polystyrene resin, acrylic resin, polyethylene terephthalate resin, polybutylene terephthalate resin, polycarbonate resin, polyacetal resin, polyphenylene sulfide resin, polyamide resin, polyimide resin, and copolymers thereof, etc. ,
Thermosetting resins, such as epoxy resins, phenolic resins,
Examples include area resin, melamine resin, polyester resin, acrylic resin, diallyl phthalate resin, urethane resin, aniline resin, furan resin, polyimide resin, silicone resin, and copolymers thereof.

また、塗装材料に用いるマトリックス材料としては、特
にその種類t−限定されるものではないが、刷毛塗り、
スプレー塗装、浸漬塗装、ロールコート、静電塗装、粉
体塗装、転写、印刷等が可能な上記と同様の熱硬化性樹
脂、及び紫外線硬化性樹脂、電子線硬化性樹脂等が挙げ
られる。
In addition, the type of matrix material used in the coating material is not particularly limited, but includes brush coating,
Examples include thermosetting resins similar to those mentioned above, which can be applied by spray coating, dip coating, roll coating, electrostatic coating, powder coating, transfer, printing, etc., as well as ultraviolet curable resins, electron beam curable resins, and the like.

尚、成形物材料及び塗装材料に用いられる樹脂には必要
に応じて添加剤等を加えることが出来、添加剤としては
、例えば硬化剤、架橋剤、光開始剤、分散剤、流動性調
節剤、離型剤、充填剤、難燃剤、滑剤、安定剤、酸化防
止剤、着色剤等、通常の樹脂成形あるいは樹脂塗装で用
いられる材料がいずれも挙げられる。
Additionally, additives can be added to the resin used for molding materials and coating materials as necessary. Examples of additives include curing agents, crosslinking agents, photoinitiators, dispersants, and fluidity regulators. , mold release agents, fillers, flame retardants, lubricants, stabilizers, antioxidants, colorants, and other materials commonly used in resin molding or resin coating.

本発明では、含リン酸無機物を含んだ上記本発明の材料
によりなる樹脂成形物あるいは樹脂塗装物の表面にマス
ク全弁して適当な強度を有するレーザー光を照射するこ
とで鮮明なマーキングが得られる。
In the present invention, clear markings can be obtained by irradiating the surface of a resin molded article or a resin-coated article made of the above-mentioned material of the present invention containing a phosphoric acid-containing inorganic substance with a laser beam of appropriate intensity using a full mask. It will be done.

本発明のマーキング方法で用いるレーザーとしては、な
かでも炭酸がスレーザーが好ましい。
Among the lasers used in the marking method of the present invention, carbonic acid lasers are particularly preferred.

〔実施例〕〔Example〕

以下に実施例及び比較例を示して本発明を更に具体的に
説明する。尚、例中の部はいずれも重量部である。
The present invention will be explained in more detail by showing Examples and Comparative Examples below. Note that all parts in the examples are parts by weight.

実施例1 ビスフェノールF型エポキシ樹脂     36部〔大
日本インキ化学工業(株)裂エピクロン83o1エポキ
シ当量180〕 酸無水物系硬化剤         31部〔同上社製
エピクロンB−570、酸無水物当量166’3硬化促
進剤(ベンジルジメチルアミン)0.7部ホウ酸亜鉛粉
末          28.8部着色剤(コバルトブ
ルー)3.5部 上記配合のエポキシ有脂組成物を3本ロールで均一に混
合して成形材料を得、これを2枚のガラス板の間に5層
厚に注型した後、80℃で5時間及び160℃で5時間
の条件で硬化させ青色の試験片を得た。次いで、この試
験片1c TEA炭酸ガスレーザーを用い、所定のマス
クを介して約1μ秒間レーザー光を照射した。試験片表
面には白色の鮮明なマーキングが得られた。
Example 1 Bisphenol F-type epoxy resin 36 parts [Dainippon Ink & Chemicals Co., Ltd. Hire Epiclon 83o1 epoxy equivalent 180] Acid anhydride curing agent 31 parts [Epiclon B-570 manufactured by the same company, acid anhydride equivalent 166'3 Hardening accelerator (benzyldimethylamine) 0.7 parts Zinc borate powder 28.8 parts Colorant (cobalt blue) 3.5 parts The epoxy fat composition of the above formulation was mixed uniformly with three rolls to obtain a molding material. After casting this to a thickness of 5 layers between two glass plates, it was cured at 80°C for 5 hours and at 160°C for 5 hours to obtain a blue test piece. Next, this test piece 1c was irradiated with laser light for about 1 μsec using a TEA carbon dioxide laser through a predetermined mask. Clear white markings were obtained on the surface of the test piece.

比較例1 ホウ酸亜鉛粉氷の添加を省略した以外は実施例1と同様
にして青色試験片を作成し、同様にして試験片表面にレ
ーザー光を照射した。しかし、実施例1とは異なり鮮明
なマーキングは得られなかった。
Comparative Example 1 A blue test piece was prepared in the same manner as in Example 1 except that the addition of zinc borate ice powder was omitted, and the surface of the test piece was irradiated with laser light in the same manner. However, unlike in Example 1, clear markings were not obtained.

実施例2 PEG 600ジアクリレート        64.
5部〔新中村化学(株)製NKエステルA−6001光
開始剤(α−ヒドロキシイソブチルフェノン) 3.2
部ホウ酸アルミニウム         30.3部着
色剤(コバルトブルー)           2部上
記配合の組成物をうzミキサーで均一に混合して塗装材
料を得、これをガラス板上にバーコーターで70μm厚
に塗装した後、高圧水銀灯ランデで紫外線照射し硬化さ
せ青色の試験片を得た。次いで、実施例1と同様にして
レーザー光を照射したところ、鮮明な白色のマーキング
が得られた。
Example 2 PEG 600 diacrylate 64.
5 parts [NK ester A-6001 photoinitiator (α-hydroxyisobutylphenone) manufactured by Shin-Nakamura Chemical Co., Ltd. 3.2
Part aluminum borate 30.3 parts Colorant (cobalt blue) 2 parts The above composition was mixed uniformly with a UZ mixer to obtain a coating material, which was coated onto a glass plate with a bar coater to a thickness of 70 μm. Afterwards, it was irradiated with ultraviolet rays using a high-pressure mercury lamp Lande to cure it, and a blue test piece was obtained. Next, when laser light was irradiated in the same manner as in Example 1, clear white markings were obtained.

実施例3 PEG 600ジアクリレート           
80部光開始材(α−ヒドロキシイソブチルフェノン)
   4部ホウ酸コバルト(コバルト紫ノーパ)   
    16部上記配配合組成物をう&ミキサーで均一
に混合して塗装材料を得、これをガラス板上にバーコー
ターで70μm厚に塗装した後、高圧水銀灯ランプで紫
外線照射し硬化させ紫色の試験片を得た。次いで、実施
例1と同様にしてレーザー光を照射したところ、やや不
鮮明ながら白色のマーキングが得られた。
Example 3 PEG 600 diacrylate
80 parts photoinitiator (α-hydroxyisobutylphenone)
4 parts cobalt borate (cobalt purple nopa)
16 parts The above blended composition was mixed uniformly with a mixer to obtain a coating material, which was coated on a glass plate to a thickness of 70 μm using a bar coater, and then cured by irradiating ultraviolet light with a high-pressure mercury lamp to obtain a purple color test. Got a piece. Next, a laser beam was irradiated in the same manner as in Example 1, and a white marking was obtained although it was somewhat unclear.

比較例2 F’EG 600ジアクリレート          
  93部光開始材(α−ヒドロキシイソブチルフェノ
ン)   3部ホウ酸コバルト(コバルト紫ノーパ) 
      4部上記配合の組成物を用いた以外は実施
例3と同様にして塗装材料を得、塗装後、紫外線硬化さ
せて紫色の試験片を得た。次いで、実施例1と同様にし
てレーザー光を照射したところ、鮮明なマーキングは得
られなかった。
Comparative Example 2 F'EG 600 diacrylate
93 parts photoinitiator (α-hydroxyisobutylphenone) 3 parts cobalt borate (cobalt purple nopa)
A coating material was obtained in the same manner as in Example 3 except that 4 parts of the above-mentioned composition was used, and after coating, it was cured with ultraviolet light to obtain a purple test piece. Next, when laser light was irradiated in the same manner as in Example 1, clear markings were not obtained.

実施例4 ポリエチレン樹脂(スミ力センG308°°°、MI=
200) 56部〔住友化学工業(株)製スミ力七ンG
308 、MI200g/mln )無水ホウ酸マグネ
シウム       42部着色材(紺背)1.4部 分散剤(ステアリン酸亜鉛)0.6部 上記配合の組成物を東洋精機(株)製うゲデラストミル
を用い140℃で十分混練して成形材料を得、これを加
熱プレス機を用いてl■厚のシートに成形し、冷却し青
色の試験片を得た。次いで、実施例1と同様にしてレー
ザー光を照射したところ、鮮明な白色のマーキングが得
られた。
Example 4 Polyethylene resin (Sumi Rikisen G308°°°, MI=
200) 56 parts [Sumi-Riki Seven G manufactured by Sumitomo Chemical Co., Ltd.
308, MI200g/mln) Anhydrous magnesium borate 42 parts Colorant (navy back) 1.4 parts Dispersant (zinc stearate) 0.6 parts The above-mentioned composition was heated at 140°C using a Gederastomill manufactured by Toyo Seiki Co., Ltd. The mixture was sufficiently kneaded to obtain a molding material, which was then molded into a l thick sheet using a hot press and cooled to obtain a blue test piece. Next, when laser light was irradiated in the same manner as in Example 1, clear white markings were obtained.

比較例3 無水ホウ醒マグネシウムの添加を省略した以外は実施例
4と同様にして青色の試験片を得た。次いで、実施例1
と同様にしてレーザー光を照射したところ、鮮明なマー
キングは得られなかりた。
Comparative Example 3 A blue test piece was obtained in the same manner as in Example 4, except that the addition of anhydrous boiled magnesium was omitted. Next, Example 1
When laser light was irradiated in the same manner as above, no clear markings were obtained.

実施例5〜9 PE0600ジアクリレー)            
64.5部光開始剤(α−ヒドロキシイン1カルフエノ
ン)3.2部第1表に示す含ホウ酸無機W      
 32.3部上記配合の組成物をうZミキサーで均一に
混合して塗装材料を得、これをガラス板上にバーコータ
ーで70μm厚に塗装した後、高圧水銀灯で紫外線照射
して硬化させ、透明〜白濁した試験片を得る。次いで、
実施例1と同様にしてレーザー光t−熱照射て白色のマ
ーキングを得、発色性及び透明性について下記の基準で
評価した。結果を第1表に示す。
Examples 5-9 PE0600 diacrylate)
64.5 parts Photoinitiator (α-hydroxyin 1 carphenone) 3.2 parts Boric acid-containing inorganic W shown in Table 1
32.3 parts A coating material was obtained by uniformly mixing the above-mentioned composition using a Z-mixer, which was coated onto a glass plate to a thickness of 70 μm using a bar coater, and then cured by irradiating ultraviolet light with a high-pressure mercury lamp. Obtain a transparent to cloudy test piece. Then,
White markings were obtained by laser t-heat irradiation in the same manner as in Example 1, and color development and transparency were evaluated using the following criteria. The results are shown in Table 1.

◎:特に良好 O:良好 Δ:やや不良 〔発明の効果〕 本発明のレーザーマーキング用材料からなる物品の表面
にレーザー光を照射すると容易に鮮明なマーキングがで
きるという効果がある。
◎: Particularly good O: Good Δ: Slightly poor [Effects of the invention] When the surface of an article made of the laser marking material of the present invention is irradiated with laser light, there is an effect that clear markings can be easily made.

Claims (1)

【特許請求の範囲】 1、含ホウ酸無機物を含有してなることを特徴とするレ
ーザーマーキング用材料。 2、塗装材料である請求項1記載の材料。 3、含ホウ酸無機物が無水ホウ酸亜鉛、無水ホウ酸アル
ミニウム、無水ホウ酸リチウム及び無水ホウ酸カルシウ
ムから選ばれる1種以上の無水含ホウ酸無機物である請
求項2記載の材料。 4、含ホウ酸無機物を含有してなる材料からなる物品の
表面にレーザー光を照射してマーク表示させることを特
徴とするマーキング方法。 5、含ホウ酸無機物を含有してなる材料が塗装材料であ
る請求項4記載のマーキング方法。 6、含ホウ酸無機物が無水ホウ酸亜鉛、無水ホウ酸アル
ミニウム、無水ホウ酸リチウム及び無水ホウ酸カルシウ
ムから選ばれる1種以上の無水含ホウ酸無機物である請
求項5記載のマーキング方法。
[Claims] 1. A laser marking material characterized by containing a boric acid-containing inorganic substance. 2. The material according to claim 1, which is a coating material. 3. The material according to claim 2, wherein the boric acid-containing inorganic substance is one or more anhydrous boric acid-containing inorganic substances selected from anhydrous zinc borate, anhydrous aluminum borate, anhydrous lithium borate, and anhydrous calcium borate. 4. A marking method characterized by displaying a mark by irradiating a laser beam onto the surface of an article made of a material containing a boric acid-containing inorganic substance. 5. The marking method according to claim 4, wherein the material containing the boric acid-containing inorganic substance is a coating material. 6. The marking method according to claim 5, wherein the boric acid-containing inorganic substance is one or more anhydrous boric acid-containing inorganic substances selected from anhydrous zinc borate, anhydrous aluminum borate, anhydrous lithium borate, and anhydrous calcium borate.
JP63050351A 1988-03-03 1988-03-03 Laser marking material and marking method Expired - Lifetime JP2701293B2 (en)

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JP63050351A JP2701293B2 (en) 1988-03-03 1988-03-03 Laser marking material and marking method

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Application Number Priority Date Filing Date Title
JP63050351A JP2701293B2 (en) 1988-03-03 1988-03-03 Laser marking material and marking method

Publications (2)

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JPH01222995A true JPH01222995A (en) 1989-09-06
JP2701293B2 JP2701293B2 (en) 1998-01-21

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0345032A2 (en) * 1988-05-31 1989-12-06 Dainippon Ink And Chemicals, Inc. Method and composition for laser-marking
EP0892010A2 (en) * 1993-01-29 1999-01-20 Daicel Chemical Industries, Ltd. Boron containing polycarbonate composition
US6238847B1 (en) 1997-10-16 2001-05-29 Dmc Degussa Metals Catalysts Cerdec Ag Laser marking method and apparatus
US6503316B1 (en) 2000-09-22 2003-01-07 Dmc2 Degussa Metals Catalysts Cerdec Ag Bismuth-containing laser markable compositions and methods of making and using same
US6503310B1 (en) 1999-06-22 2003-01-07 Dmc2 Degussa Metals Catalysts Cerdec Ag Laser marking compositions and method
US7238396B2 (en) 2002-08-02 2007-07-03 Rieck Albert S Methods for vitrescent marking
JP2009512574A (en) * 2005-10-21 2009-03-26 データレース リミテッド Laser marking of substrate
JP2009517252A (en) * 2005-12-02 2009-04-30 データレース リミテッド Tape structure, tape, tape manufacturing method, substrate coating method, base manufacturing method, laser imageable agent, and image carrier base manufacturing method

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0345032A2 (en) * 1988-05-31 1989-12-06 Dainippon Ink And Chemicals, Inc. Method and composition for laser-marking
EP0892010A2 (en) * 1993-01-29 1999-01-20 Daicel Chemical Industries, Ltd. Boron containing polycarbonate composition
EP0892010A3 (en) * 1993-01-29 1999-03-31 Daicel Chemical Industries, Ltd. Boron containing polycarbonate composition
US6238847B1 (en) 1997-10-16 2001-05-29 Dmc Degussa Metals Catalysts Cerdec Ag Laser marking method and apparatus
US6503310B1 (en) 1999-06-22 2003-01-07 Dmc2 Degussa Metals Catalysts Cerdec Ag Laser marking compositions and method
US6680121B2 (en) 2000-09-22 2004-01-20 Dmc2 Degussa Metals Catalysts Cerdec Ag Bismuth-containing laser markable compositions and methods of making and using same
US6503316B1 (en) 2000-09-22 2003-01-07 Dmc2 Degussa Metals Catalysts Cerdec Ag Bismuth-containing laser markable compositions and methods of making and using same
US7238396B2 (en) 2002-08-02 2007-07-03 Rieck Albert S Methods for vitrescent marking
JP2009512574A (en) * 2005-10-21 2009-03-26 データレース リミテッド Laser marking of substrate
JP4827925B2 (en) * 2005-10-21 2011-11-30 データレース リミテッド Method for marking a substrate and marked substrate, coating film suitable for marking a substrate
US8278244B2 (en) 2005-10-21 2012-10-02 Datalase Ltd Laser marking of substrates
JP2009517252A (en) * 2005-12-02 2009-04-30 データレース リミテッド Tape structure, tape, tape manufacturing method, substrate coating method, base manufacturing method, laser imageable agent, and image carrier base manufacturing method
JP4923060B2 (en) * 2005-12-02 2012-04-25 データレース リミテッド Tape, method for producing tape, substrate coating method, and production of substrate having image

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