EP 4263117 A1 20231025 - METHOD FOR TREATING A SURFACE WITH IR LASER LIGHT
Title (en)
METHOD FOR TREATING A SURFACE WITH IR LASER LIGHT
Title (de)
VERFAHREN ZUM BEHANDELN EINER OBERFLÄCHE MIT IR-LASERLICHT
Title (fr)
PROCÉDÉ DE TRAITEMENT D'UNE SURFACE À LA LUMIÈRE LASER IR
Publication
Application
Priority
- DE 102020134267 A 20201218
- EP 2021085237 W 20211210
Abstract (en)
[origin: WO2022128800A1] The invention relates to a method for pretreating a polymer-coated surface (11) that comprises particles and/or pigments, wherein laser light is emitted by a laser source (110), in particular a pulsed infrared laser beam (111) in the near-infrared range with a pulse fluence of 0.01 to 50 J/cm2 is generated. The method also comprises orienting the laser light by a deflection unit (115) as a laser beam (111) towards the surface (11) and moving the laser light over the surface (11) along a path (40). The emission of the pulsed laser light comprises setting the pulse fluence so that first particles and/or pigments of the surface (11) which face the laser beam (111) absorb the pulsed infrared laser light (111), and part of the surface detaches, the layer thickness of the polymer after detachment being greater than or equal to 50%, preferably greater than or equal to 75%, particularly preferably greater than or equal to 90% of the original layer thickness of the polymer.
IPC 8 full level
B23K 26/0622 (2014.01); B23K 26/082 (2014.01); B23K 26/16 (2006.01); B23K 26/352 (2014.01); B23K 103/00 (2006.01)
CPC (source: EP)
B23K 26/0622 (2015.10); B23K 26/082 (2015.10); B23K 26/16 (2013.01); B23K 26/3584 (2018.07); B23K 2103/42 (2018.07)
Citation (search report)
See references of WO 2022128800A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2022128800 A1 20220623; CN 115768585 A 20230307; EP 4263117 A1 20231025
DOCDB simple family (application)
EP 2021085237 W 20211210; CN 202180041923 A 20211210; EP 21839358 A 20211210