DE19942316A1 - Laser printing of a plastic substrate by heating a compound of plastic powder and glass pigments on the substrate with a laser beam - Google Patents

Laser printing of a plastic substrate by heating a compound of plastic powder and glass pigments on the substrate with a laser beam

Info

Publication number
DE19942316A1
DE19942316A1 DE1999142316 DE19942316A DE19942316A1 DE 19942316 A1 DE19942316 A1 DE 19942316A1 DE 1999142316 DE1999142316 DE 1999142316 DE 19942316 A DE19942316 A DE 19942316A DE 19942316 A1 DE19942316 A1 DE 19942316A1
Authority
DE
Germany
Prior art keywords
plastic
glass
pigments
color
laser
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.)
Withdrawn
Application number
DE1999142316
Other languages
German (de)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE1999142316 priority Critical patent/DE19942316A1/en
Publication of DE19942316A1 publication Critical patent/DE19942316A1/en
Withdrawn legal-status Critical Current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
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/267—Marking of plastic artifacts, e.g. with laser

Abstract

Plastic powder (1) is mixed with glass pigments (2) and applied to the plastic surface to be printed. A laser beam (4) is directed at the surface (3) which heats the pigments causing the plastic powder and the surface to melt. Independent claims are made for: a) the process equipment including a controlled laser beam; b) a color for the process comprising a mixture of plastic powder and one type of glass pigment which is not melted into the glass and has the dual purpose of producing both the printing color and absorbing the laser energy producing the printing; c) a color comprising a mixture of plastic powder and two types of glass pigments, one of which absorbs the laser energy to produces the surface melting effect and the other produces the color effect.

Description

Es ist bekannt, mit Hilfe eines Infrarotlasers eine gut haftende metallische Beschrif­ tung auf Glas, Keramik und Metall aufzubringen. Eine Übertragung dieses Verfah­ rens zur Kunststoffbeschriftung würde normalerweise zu einem Verbrennen der Kunststoffoberfläche führen.It is known, with the help of an infrared laser, to have a well-adhering metallic label application on glass, ceramics and metal. A transfer of this procedure rens for plastic lettering would normally burn the Lead plastic surface.

Die Aufgabe der vorliegenden Erfindung besteht darin, ein Verfahren, eine Anord­ nung und eine Farbe anzugeben, mit der die Kunststoffbeschriftung durchgeführt werden kann.The object of the present invention is a method, an arrangement and a color to indicate the plastic lettering can be.

Die Aufgabe wird durch die Ansprüche 1-6 gelöst.The problem is solved by claims 1-6.

Als Beschriftungsfarbe wird gemahlenes, wasserklares Kunststoffpulver (1) mit einer Partikelgröße von ca. 5 µm vermischt mit Glaspigmenten (2) (gemahlenes farbiges Glas) verwendet. Diese Mischung wird feucht auf die zu beschriftende Oberfläche (3) des Kunststoffs aufgesprüht (Bild 1a). Ein enger gesteuerter Laserstrahl (4) (Bild 2a) im Infrarotbereich erwärmt die Glaspigmente (2), die ihrerseits das Kunststoffpul­ ver (1) und die Oberfläche (3) zum Schmelzen bzw. Anschmelzen bringen. Beim Er­ starren werden die Glaspigmente (2) zwischen dem Material des zu beschriftenden Kunststoffs und dem aufgeschmolzenen Kunststoffpulver (1) eingebettet (Bild 3a).Ground, water-clear plastic powder ( 1 ) with a particle size of approx. 5 µm mixed with glass pigments ( 2 ) (ground colored glass) is used as the marking color. This mixture is sprayed wet onto the surface ( 3 ) of the plastic to be labeled ( Figure 1a). A tightly controlled laser beam ( 4 ) ( Fig. 2a) in the infrared region heats the glass pigments ( 2 ), which in turn melt the plastic powder ( 1 ) and the surface ( 3 ). When rigid, the glass pigments ( 2 ) are embedded between the material of the plastic to be labeled and the melted plastic powder ( 1 ) ( Fig. 3a).

Mit diesem Verfahren entsteht eine farbige Beschriftung sehr guter Haftfähigkeit.This process creates a colored inscription with very good adhesion.

Gegebenenfalls können die Glaspigmente zur Stabilisierung mit Kunststoff um­ mantelt werden (Bilder 1b-3b).Optionally, the glass for stabilizing pigments with plastic to be mantelt (Figures 1b-3b).

Weiter können an Stelle der Glaspigmente auch andere handelsübliche Pigmente oder Pigmentanordnungen eingesetzt werden, die die Aufgabe der Glaspigmente übernehmen können, z. B. Pigmente die an anderen Trägern angekettet sind.In addition to the glass pigments, other commercially available pigments can also be used or pigment arrangements are used, the task of the glass pigments can take over, e.g. B. Pigments chained to other carriers.

Claims (6)

1. Verfahren zum Beschriften von Kunststoff mit Laser, bei dem ein Kunststoff­ pulvergranulat mit Glaspigmenten versetzt ist, die durch die Laserwirkung auf die zu beschriftende Oberfläche gelangen.1. Method for labeling plastic with laser, using a plastic Powder granulate with glass pigments is added due to the laser effect the surface to be labeled. 2. Anlage zur Durchführung des Verfahrens nach Anspruch 1, mit mindestens einem gesteuerten Laserstrahl, der auf ein mit Glaspigmenten versetztes Kunststoffpulvergranulat gerichtet ist.2. Plant for performing the method according to claim 1, with at least a controlled laser beam that is placed on a glass pigment Plastic powder granules is directed. 3. Farbe zur Durchführung des Verfahrens nach Anspruch 1, gekennzeichnet durch eine Mischung von Kunststoffgranulat mit Glaspigmenten.3. Color for performing the method according to claim 1, characterized through a mixture of plastic granules with glass pigments. 4. Verfahren nach Anspruch 1 mit einem Infrarotlaser, wasserklarem Kunststoff­ pulvergranulat von ca. 3-8 µm Größe und Glaspigmenten kleiner 1 µ.4. The method according to claim 1 with an infrared laser, water-clear plastic powder granules of approx. 3-8 µm size and glass pigments smaller than 1 µ. 5. Farbe zur Durchführung des Verfahrens nach Anspruch 1, gekennzeichnet durch eine Mischung von Kunststoffgranulat und Pigmenten, die nicht im Glas eingeschmolzen sind und zusätzlich zu der Farbgebung auch die Energie auf nehmen können um den Schmelzvorgang durchzuführen.5. Color for performing the method according to claim 1, characterized through a mixture of plastic granules and pigments that are not in the glass are melted down and in addition to the coloring also the energy can take to perform the melting process. 6. Farbe zur Durchführung des Verfahrens nach Anspruch 1, gekennzeichnet durch eine Mischung von Kunststoffgranulat und Pigmenten, die nicht im Glas eingeschmolzen sind und aus 2 Arten von Pigmenten bestehen, die einerseits durch Laserlicht Energie aufnehmen und den Schmelzvorgang übernehmen, und andererseits zur Farbgebung eingesetzt werden können.6. Color for performing the method according to claim 1, characterized through a mixture of plastic granules and pigments that are not in the glass are melted down and consist of 2 types of pigments, the one hand absorb energy by laser light and take over the melting process, and on the other hand can be used for coloring.
DE1999142316 1999-09-04 1999-09-04 Laser printing of a plastic substrate by heating a compound of plastic powder and glass pigments on the substrate with a laser beam Withdrawn DE19942316A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1999142316 DE19942316A1 (en) 1999-09-04 1999-09-04 Laser printing of a plastic substrate by heating a compound of plastic powder and glass pigments on the substrate with a laser beam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1999142316 DE19942316A1 (en) 1999-09-04 1999-09-04 Laser printing of a plastic substrate by heating a compound of plastic powder and glass pigments on the substrate with a laser beam

Publications (1)

Publication Number Publication Date
DE19942316A1 true DE19942316A1 (en) 2001-03-08

Family

ID=7920859

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1999142316 Withdrawn DE19942316A1 (en) 1999-09-04 1999-09-04 Laser printing of a plastic substrate by heating a compound of plastic powder and glass pigments on the substrate with a laser beam

Country Status (1)

Country Link
DE (1) DE19942316A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1236583A1 (en) * 2001-03-03 2002-09-04 Pösl, Rudolf, Dipl.-Ing. Process of writing on plastic
WO2005047010A1 (en) 2003-11-10 2005-05-26 Merck Patent Gmbh Color laser marking
WO2005097514A1 (en) * 2004-03-30 2005-10-20 Merck Patent Gmbh Sealing of plastic inscriptions
WO2007062785A2 (en) 2005-11-30 2007-06-07 Merck Patent Gmbh Laser transfer of security features
CN100496993C (en) * 2004-03-30 2009-06-10 默克专利股份有限公司 Method for the permanent abrasion-resistant colored inscription and/or marking of plastics and plastic obtained therefrom
CN100500448C (en) * 2003-11-10 2009-06-17 默克专利股份有限公司 Color laser marking
WO2016162753A1 (en) * 2015-04-09 2016-10-13 Get Group Holdings Limited Compositions, apparatus, methods, and substrates for making images and text

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1236583A1 (en) * 2001-03-03 2002-09-04 Pösl, Rudolf, Dipl.-Ing. Process of writing on plastic
WO2005047010A1 (en) 2003-11-10 2005-05-26 Merck Patent Gmbh Color laser marking
CN100500448C (en) * 2003-11-10 2009-06-17 默克专利股份有限公司 Color laser marking
WO2005097514A1 (en) * 2004-03-30 2005-10-20 Merck Patent Gmbh Sealing of plastic inscriptions
CN100496993C (en) * 2004-03-30 2009-06-10 默克专利股份有限公司 Method for the permanent abrasion-resistant colored inscription and/or marking of plastics and plastic obtained therefrom
US8343412B2 (en) 2004-03-30 2013-01-01 Merck Patent Gmbh Sealing of inscriptions on plastics
WO2007062785A2 (en) 2005-11-30 2007-06-07 Merck Patent Gmbh Laser transfer of security features
WO2016162753A1 (en) * 2015-04-09 2016-10-13 Get Group Holdings Limited Compositions, apparatus, methods, and substrates for making images and text

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Legal Events

Date Code Title Description
8181 Inventor (new situation)

Free format text: LENHART, ARMIN, PROF. DR., 91077 NEUNKIRCHEN, DE

8110 Request for examination paragraph 44
8139 Disposal/non-payment of the annual fee