EP1099565B1 - Verfahren zur Beschriftung von Kunststoffoberflächen - Google Patents
Verfahren zur Beschriftung von Kunststoffoberflächen Download PDFInfo
- Publication number
- EP1099565B1 EP1099565B1 EP00124254A EP00124254A EP1099565B1 EP 1099565 B1 EP1099565 B1 EP 1099565B1 EP 00124254 A EP00124254 A EP 00124254A EP 00124254 A EP00124254 A EP 00124254A EP 1099565 B1 EP1099565 B1 EP 1099565B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plastic
- plastics
- component
- composition
- particles
- 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.)
- Expired - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
- B41M7/009—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using thermal means, e.g. infrared radiation, heat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
- B41M7/0081—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using electromagnetic radiation or waves, e.g. ultraviolet radiation, electron beams
Definitions
- the invention relates to a method for labeling plastic surfaces, with plastic-based compositions.
- thermoplastics A labeling method for thermoplastics is in EP-A 0 922 589 described.
- the labeling is done by a coating that also based on thermoplastics. This becomes the lettering Apply coating material to the plastic surface, then the plastics are melted in the form of lettering by a laser, so that the plastics of the coating weld to the substrate. Finally, the excess coating material is removed again.
- the light source is a laser, preferably a laser with a variable wavelength.
- a laser preferably a laser with a variable wavelength.
- the primary goal of the above method is local composition fixate by radiation. This requires at least part of the composition and / or a part or all of the plastic surface is melted be, whereby then a firm connection between the locally fixed Composition and the plastic surface forms.
- the at least one coloring component comprises Composition at least one plastic component.
- This consists preferably of fine plastic particles.
- the plastic component can be freely selected from all meltable plastics that are in become completely or partially melted and thin possess film-forming properties. These plastics are used depending on a label to be provided surface freely under thermoplastics and Thermosets chosen.
- the following are worth mentioning: Polyether and Polyester urethanes, polyvinyl chloride, alkyd resins, phenolic resins, polyolefins, in particular polyethylene homopolymers and copolymers, epoxy resins, polyesters, Polystyrenes, styrene-acrylonitrile copolymers, polybutylene terephthalates, polyamides and acrylic resins.
- the composition is a film forms, which adheres well to the unmelted plastic surface.
- the plastic portion of the composition should be compatible with the Plastic surface, they can wet well in the molten state and then adhere sufficiently.
- the at least one coloring component of the composition is preferably temperature-resistant.
- temperature-resistant is understood to mean that its melting point is higher than the temperatures to which it is or may be exposed when the process according to the invention is carried out. Both inorganic and organic, temperature-resistant pigments can be used as the coloring component.
- naturally occurring inorganic pigments such as chalk, ocher, umber, green earth, graphite
- synthetic inorganic pigments such as white pigments, for example titanium dioxide, lead white, zinc white, lithopone, antimony white
- Black pigments for example carbon black, iron oxide black, manganese black and cobalt black
- Colored pigments for example lead chromate, red lead, zinc yellow, zinc green, cadmium red, cobalt blue, Berlin blue, ultramarine, manganese violet, cadmium yellow, Schweinfurt green, molybdenum red and - orange, chrome orange and red, iron oxide red, chrome oxide green, strontium yellow
- gloss pigments such as zinc or lead powder and pearlescent pigments
- naturally occurring organic pigments such as, for example, sepia brown, gummy goat, bone charcoal, Kasseler brown, indigo, chlorophyll
- synthetic organic pigments such as azo dyes, indigoids, phthalocyanines, those of
- So-called composite pigments can also be used, for example SiO 2 particles with a dye coating.
- Further well-usable pigments and details on pigments in general are in Ullmann "Encyclopedia of Technical Chemistry", 4th edition, vol. 18, VCH-Verlag, Weinheim and Römpp's Chemistry Lexicon, CD version 1.5, Georg Thieme Verlag 1998 each under the keyword " Pigments ".
- the at least one coloring component is uniform in the dispersed at least one plastic component, the latter in turn undyed or self-colored.
- the plastic component or the individual fine Plastic particles bearing paint i.e. firmly with the ink-bearing component be connected.
- the plastic component is even is pigmented, as is the case with powder coatings, the Plastic component then more suitable in the form of uniformly pigmented particles Size can be brought.
- the pigmented ones Plastic particles have an average diameter in a range of about 0.7 ⁇ m to about 15 ⁇ m, particularly preferably from about 3 ⁇ m to about 10 ⁇ m. at powder coatings of this type are generally heat-curing and / or UV-curing Powder.
- thermosets e.g. epoxy, Polyester and acrylic resins and thermoplastics, e.g.
- Polyacrylates, polyamides, Ethylene-vinyl acetate copolymers, polyethylene homo- and copolymers, PVC, Polyester and polyepoxides are used.
- the Plastic component still a suitable crosslinker. More information about the polymers and / or crosslinkers that can be used for powder coating are those above cited “Ullmann”, vol. 15, keyword “Lacke”, sub-item “Powder coatings” can be found.
- the pigmented plastic particles in powder form are then on the labeling plastic surface applied.
- irradiation with light then preferably with laser light, suitable wavelength, there is a fixed Connection of the applied powder with the surface to be labeled.
- composition having at least one color-bearing component a mixture that is undyed plastic particles and homogeneous or composite color particles.
- the at least one ink-bearing component Composition should be a mixture of undyed plastic particles and composite color particles in which primary pigment particles are dispersed, includes.
- the color particles are preferably colored by soluble dyes.
- the middle one The diameter of the color particles is preferably in a range of approximately 0.7 ⁇ m up to about 15 ⁇ m, particularly preferably in a range from about 3 ⁇ m to about 10 ⁇ m, more preferably about 10 ⁇ m.
- the average diameter of the undyed plastic particles is preferably in a range of about 0.1 ⁇ m to about 15 ⁇ m, particularly preferably about 3 ⁇ m.
- These aforementioned mixtures are preferably also in powder form applied the plastic surface to be labeled and there with suitable light irradiated.
- the composition having at least one color-bearing component in the form of a suspension i.e. in the manner of a varnish, on the one to be labeled Plastic surface applied.
- a suspension i.e. in the manner of a varnish
- To apply the suspension to the different techniques can be used, preferably spraying and / or printing and / or doctoring and / or Pour on and / or by immersing the surface to be labeled in the Suspension.
- the plastic particles used are preferably comminuted, particularly preferably produced by wet comminution.
- the plastic particles are produced by melt emulsification. Acting it is a procedure in which the plastic is first melted is then brought into contact with a fluid with which it is not is miscible, e.g. Water, droplets of plastic in the Micrometer range arise. Finally the mixture obtained is cooled, being a very fine-grained suspension with regular spherical Plastic particles are created.
- a fluid with which it is not is miscible e.g. Water
- the plastic particles are furthermore preferably made by polymerization manufactured.
- the at least one color-bearing component further comprises a crosslinking agent which can preferably be activated thermally and / or UV is. These crosslinking agents do not make the plastic component only melted by the radiation and in this way with the corresponding plastic surface, but also with this networks, which significantly improves the quality of the coating.
- crosslinkers are also suitable crosslinkers used, e.g. Polyisocyanates, isocyanurates, bisoxazolines, Dicarboxylic acids and anhydrides, epoxies, imidazolines and bisphenols.
- an uncrosslinked polymer e.g. a duromer than Particle or film is created on the plastic surface and then the Crosslinking reaction triggered, e.g. thermal, e.g. by increasing the temperature 100 to 200 ° C, but not up to the melting temperature of the polymer, or by UV or electron beam radiation.
- the polymer itself can be a group capable of networking, e.g. have a benzophenone group.
- the polymer is first applied to the particle coating or film Plastic surface applied and the crosslinking reaction triggered.
- crosslinking can be used be caused that first a (thin) liquid state arises, in which from the disperse particle layer creates a closed film, and only then the Curing (crosslinking) occurs.
Description
Claims (7)
- Verfahren zur Beschriftung einer Kunststoffoberfläche, wobei das Verfahren folgende Schritte umfasst:a) Aufbringen einer mindestens eine farbgebende Komponente, mindestens eine Kunststoffkomponente und ein Vernetzungsmittel aufweisende Zusammensetzung, wobei die mindestens eine farbgebende Komponente gleichmäßig in der mindestens einen Kunststoffkomponente dispergiert ist, auf die Kunststoffoberflächeb) Bestrahlen der Kunststoffoberfläche mit Licht aus einer Lichtquelle durch mehrmaliges Überfahren der zu beschriftenden Stelle mit der Lichtquelle, wobei die Kunststoffkomponente schmilzt und sich durch Vernetzung mit der Kunststoffoberfläche verbindet und wobei das von der Lichtquelle emittierte Licht eine so geringe Energie aufweist, dass sich die Kunststoff-Bestandteile nicht zersetzen.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Lichtquelle ein Laser ist.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die mindestens eine farbgebende Komponente temperaturbeständig ist.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die mindestens eine Kunststoffkomponente aus feinen Partikeln besteht.
- Verfahren nach Anspruch 4, dadurch gekennzeichnet, dass die mindestens eine Kunststoffkomponente aus ungefärbten Kunststoffpartikeln und die mindestens eine farbgebende Komponente aus homogenen oder zusammengesetzten Farbpartikeln gebildet wird.
- Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die mindestens eine farbgebende Komponente aufweisende Zusammensetzung in Pulverform oder als Suspension auf die Kunststoffoberfläche aufgebracht wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass das Vernetzungsmittel thermisch und/oder UV-aktivierbar ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19954366A DE19954366A1 (de) | 1999-11-11 | 1999-11-11 | Verfahren zur Beschriftung von Kunststoffoberflächen |
DE19954366 | 1999-11-11 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1099565A2 EP1099565A2 (de) | 2001-05-16 |
EP1099565A3 EP1099565A3 (de) | 2002-04-24 |
EP1099565B1 true EP1099565B1 (de) | 2004-09-01 |
Family
ID=7928748
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00124254A Expired - Lifetime EP1099565B1 (de) | 1999-11-11 | 2000-11-10 | Verfahren zur Beschriftung von Kunststoffoberflächen |
Country Status (3)
Country | Link |
---|---|
US (1) | US6592949B1 (de) |
EP (1) | EP1099565B1 (de) |
DE (2) | DE19954366A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3963077B2 (ja) * | 2000-12-25 | 2007-08-22 | 松下電工株式会社 | 成形体の加飾方法 |
BR0116786B1 (pt) * | 2001-01-16 | 2012-10-02 | tampa para recipiente de vinho feita de um elastÈmero expandido. | |
DE10343704A1 (de) * | 2003-09-18 | 2005-04-14 | Mankiewicz Gebr. & Co (Gmbh & Co Kg) | Pigment für lasergravierfähige Lacke |
FI20075474A0 (fi) * | 2007-06-20 | 2007-06-20 | Valtion Teknillinen | Menetelmä muovin pinnan kuvioimiseksi |
DE102008058556A1 (de) * | 2008-11-21 | 2010-05-27 | Pröstler, Karl-Heinz, Dipl.-Ing. | Verfahren zur Trockenbeschichtung |
DE102012204091A1 (de) * | 2012-03-15 | 2013-09-19 | Robert Bosch Gmbh | Pulverbeschichtungsvorrichtung und Pulverbeschichtungsverfahren |
BR112017000278A2 (pt) * | 2014-07-08 | 2017-10-31 | Xyleco Inc | marcação de produtos à base de plástico |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4042476A (en) * | 1975-02-18 | 1977-08-16 | Celanese Corporation | Polymerized titanium dioxide for ultraviolet coatings |
US4270449A (en) * | 1978-03-02 | 1981-06-02 | Toppan Printing Co., Ltd. | Method of printing plastic surfaces |
US4245003A (en) * | 1979-08-17 | 1981-01-13 | James River Graphics, Inc. | Coated transparent film for laser imaging |
DE3631843A1 (de) * | 1986-09-19 | 1988-03-24 | Basf Ag | Naphtholactamquadratsaeurefarbstoffe und diese farbstoffe enthaltende optische aufzeichnungsmedien |
DE3737455A1 (de) * | 1986-11-06 | 1988-05-19 | Westinghouse Electric Corp | Einrichtung und verfahren zum erzeugen von farbmustern |
DE3641436A1 (de) * | 1986-12-04 | 1988-06-09 | Schmalbach Lubeca | Loesungsmittelfreie, monomerarme bzw. -freie, polymerisierbare schmelzmasse, verfahren zu deren herstellung und verarbeitung |
US4975300A (en) * | 1987-12-31 | 1990-12-04 | Minnesota Mining And Manufacturing Company | Method for curing an organic coating using condensation heating and radiation energy |
CH677756A5 (de) * | 1989-01-26 | 1991-06-28 | Ciba Geigy Ag | |
ES2086389T3 (es) * | 1989-09-22 | 1996-07-01 | Schneider Electric Sa | Procedimiento, dispositivo y pintura de marcado por laser para cascadas de aparatos electricos. |
US5543177A (en) * | 1992-11-05 | 1996-08-06 | Xerox Corporation | Marking materials containing retroreflecting fillers |
IL106899A (en) * | 1993-09-03 | 1995-08-31 | Adler Uri | Method and apparatus for the production of photopolymeric printing plates |
TW307791B (de) * | 1994-02-09 | 1997-06-11 | Ciba Sc Holding Ag | |
DE19517625A1 (de) * | 1995-05-13 | 1996-11-14 | Budenheim Rud A Oetker Chemie | Verfahren zum musterförmigen Bedrucken fester Substratoberflächen |
JP3124722B2 (ja) * | 1995-07-31 | 2001-01-15 | キヤノン株式会社 | カラーフィルタの製造方法及び製造装置及びカラーフィルタの区画された領域間の混色の低減方法及びカラーフィルタの区画された領域へのインク付与位置の精度向上方法及びカラーフィルタの区画された領域の着色ムラ低減方法 |
GB9521945D0 (en) * | 1995-10-26 | 1996-01-03 | Columbia Ribbon Mfg | Method of forming layer on substrate and article formed thereby |
FR2764844B1 (fr) * | 1997-06-23 | 1999-08-06 | Gemplus Card Int | Reticulation d'encre u.v. |
EP0922589A1 (de) * | 1997-12-10 | 1999-06-16 | Tekmax Inc. | Verfahren zur Laserbeschriftung von thermoplastischen Kunststoffen |
JP2002503747A (ja) * | 1998-02-17 | 2002-02-05 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | 粉体コーティングを形成する方法 |
US6210472B1 (en) * | 1999-04-08 | 2001-04-03 | Marconi Data Systems Inc. | Transparent coating for laser marking |
US6277937B1 (en) * | 2000-02-17 | 2001-08-21 | Dupont Dow Elastomers, L.L.C. | Process for producing fluorelastomers |
-
1999
- 1999-11-11 DE DE19954366A patent/DE19954366A1/de not_active Withdrawn
-
2000
- 2000-11-08 US US09/708,026 patent/US6592949B1/en not_active Expired - Fee Related
- 2000-11-10 EP EP00124254A patent/EP1099565B1/de not_active Expired - Lifetime
- 2000-11-10 DE DE50007606T patent/DE50007606D1/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE19954366A1 (de) | 2001-05-17 |
EP1099565A3 (de) | 2002-04-24 |
US6592949B1 (en) | 2003-07-15 |
DE50007606D1 (de) | 2004-10-07 |
EP1099565A2 (de) | 2001-05-16 |
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