{"id":46231,"date":"2025-02-20T11:15:17","date_gmt":"2025-02-20T03:15:17","guid":{"rendered":"https:\/\/www.geekbuying.com\/geekgiz\/?p=46231"},"modified":"2025-02-20T11:15:17","modified_gmt":"2025-02-20T03:15:17","slug":"how-to-achieve-color-for-the-patterns-engraved-by-laser-engraver","status":"publish","type":"post","link":"https:\/\/www.geekbuying.com\/geekgiz\/2025\/02\/how-to-achieve-color-for-the-patterns-engraved-by-laser-engraver\/","title":{"rendered":"How to Achieve Color for the Patterns Engraved by Laser Engraver?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_49 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"ez-toc-toggle-icon-1\"><label for=\"item-6a863d99b63d0\" aria-label=\"Table of Content\"><span style=\"display: flex;align-items: center;width: 35px;height: 30px;justify-content: center;direction:ltr;\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/label><input  type=\"checkbox\" id=\"item-6a863d99b63d0\"><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.geekbuying.com\/geekgiz\/2025\/02\/how-to-achieve-color-for-the-patterns-engraved-by-laser-engraver\/#Diode_Laser_Engraver\" title=\"Diode Laser Engraver\">Diode Laser Engraver<\/a><ul class='ez-toc-list-level-4'><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.geekbuying.com\/geekgiz\/2025\/02\/how-to-achieve-color-for-the-patterns-engraved-by-laser-engraver\/#Oxidation_of_material_surface\" title=\"Oxidation of material surface\">Oxidation of material surface<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.geekbuying.com\/geekgiz\/2025\/02\/how-to-achieve-color-for-the-patterns-engraved-by-laser-engraver\/#Precise_control_of_laser_parameters\" title=\"Precise control of laser parameters\">Precise control of laser parameters<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.geekbuying.com\/geekgiz\/2025\/02\/how-to-achieve-color-for-the-patterns-engraved-by-laser-engraver\/#Use_MOPA_technology\" title=\"Use MOPA technology\">Use MOPA technology<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.geekbuying.com\/geekgiz\/2025\/02\/how-to-achieve-color-for-the-patterns-engraved-by-laser-engraver\/#Natural_oxidation_or_use_of_colorants\" title=\"Natural oxidation or use of colorants\">Natural oxidation or use of colorants<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.geekbuying.com\/geekgiz\/2025\/02\/how-to-achieve-color-for-the-patterns-engraved-by-laser-engraver\/#Raster_method\" title=\"Raster method\">Raster method<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.geekbuying.com\/geekgiz\/2025\/02\/how-to-achieve-color-for-the-patterns-engraved-by-laser-engraver\/#Using_software_and_laser_engravers\" title=\"Using software and laser engravers\">Using software and laser engravers<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.geekbuying.com\/geekgiz\/2025\/02\/how-to-achieve-color-for-the-patterns-engraved-by-laser-engraver\/#Characteristics_of_diode_lasers\" title=\"Characteristics of diode lasers\">Characteristics of diode lasers<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.geekbuying.com\/geekgiz\/2025\/02\/how-to-achieve-color-for-the-patterns-engraved-by-laser-engraver\/#CO2_Laser_Engraver\" title=\"CO2 Laser Engraver\">CO2 Laser Engraver<\/a><ul class='ez-toc-list-level-4'><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.geekbuying.com\/geekgiz\/2025\/02\/how-to-achieve-color-for-the-patterns-engraved-by-laser-engraver\/#Using_optical_diffraction\" title=\"Using optical diffraction\">Using optical diffraction<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.geekbuying.com\/geekgiz\/2025\/02\/how-to-achieve-color-for-the-patterns-engraved-by-laser-engraver\/#Laser_ablation_oxidation\" title=\"Laser ablation oxidation\">Laser ablation oxidation<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.geekbuying.com\/geekgiz\/2025\/02\/how-to-achieve-color-for-the-patterns-engraved-by-laser-engraver\/#Oxidation_method\" title=\"Oxidation method\">Oxidation method<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.geekbuying.com\/geekgiz\/2025\/02\/how-to-achieve-color-for-the-patterns-engraved-by-laser-engraver\/#Grating_method\" title=\"Grating method\">Grating method<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.geekbuying.com\/geekgiz\/2025\/02\/how-to-achieve-color-for-the-patterns-engraved-by-laser-engraver\/#Using_colored_plastics\" title=\"Using colored plastics\">Using colored plastics<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.geekbuying.com\/geekgiz\/2025\/02\/how-to-achieve-color-for-the-patterns-engraved-by-laser-engraver\/#Use_of_colorants\" title=\"Use of colorants\">Use of colorants<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.geekbuying.com\/geekgiz\/2025\/02\/how-to-achieve-color-for-the-patterns-engraved-by-laser-engraver\/#MOPA_fiber_laser_technology\" title=\"MOPA fiber laser technology\">MOPA fiber laser technology<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.geekbuying.com\/geekgiz\/2025\/02\/how-to-achieve-color-for-the-patterns-engraved-by-laser-engraver\/#Precise_control_of_laser_parameters-2\" title=\"Precise control of laser parameters\">Precise control of laser parameters<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.geekbuying.com\/geekgiz\/2025\/02\/how-to-achieve-color-for-the-patterns-engraved-by-laser-engraver\/#Infrared_Laser_Engraver\" title=\"Infrared Laser Engraver\">Infrared Laser Engraver<\/a><ul class='ez-toc-list-level-4'><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.geekbuying.com\/geekgiz\/2025\/02\/how-to-achieve-color-for-the-patterns-engraved-by-laser-engraver\/#Laser_Induced_Periodic_Surface_Structure_LIPSS\" title=\"Laser Induced Periodic Surface Structure (LIPSS)\">Laser Induced Periodic Surface Structure (LIPSS)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/www.geekbuying.com\/geekgiz\/2025\/02\/how-to-achieve-color-for-the-patterns-engraved-by-laser-engraver\/#Thin_film_interference\" title=\"Thin film interference\">Thin film interference<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/www.geekbuying.com\/geekgiz\/2025\/02\/how-to-achieve-color-for-the-patterns-engraved-by-laser-engraver\/#Metal_nanoparticle_plasmon\" title=\"Metal nanoparticle plasmon\">Metal nanoparticle plasmon<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/www.geekbuying.com\/geekgiz\/2025\/02\/how-to-achieve-color-for-the-patterns-engraved-by-laser-engraver\/#Oxidation_method-2\" title=\"Oxidation method\">Oxidation method<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/www.geekbuying.com\/geekgiz\/2025\/02\/how-to-achieve-color-for-the-patterns-engraved-by-laser-engraver\/#Grating_method-2\" title=\"Grating method\">Grating method<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/www.geekbuying.com\/geekgiz\/2025\/02\/how-to-achieve-color-for-the-patterns-engraved-by-laser-engraver\/#Use_colored_plastics\" title=\"Use colored plastics\">Use colored plastics<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/www.geekbuying.com\/geekgiz\/2025\/02\/how-to-achieve-color-for-the-patterns-engraved-by-laser-engraver\/#Use_colorants\" title=\"Use colorants\">Use colorants<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/www.geekbuying.com\/geekgiz\/2025\/02\/how-to-achieve-color-for-the-patterns-engraved-by-laser-engraver\/#MOPA_fiber_laser_technology-2\" title=\"MOPA fiber laser technology\">MOPA fiber laser technology<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/www.geekbuying.com\/geekgiz\/2025\/02\/how-to-achieve-color-for-the-patterns-engraved-by-laser-engraver\/#Precise_control_of_laser_parameters-3\" title=\"Precise control of laser parameters\">Precise control of laser parameters<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/www.geekbuying.com\/geekgiz\/2025\/02\/how-to-achieve-color-for-the-patterns-engraved-by-laser-engraver\/#How_to_Control_the_Depth_of_Color\" title=\"How to Control the Depth of Color?\">How to Control the Depth of Color?<\/a><ul class='ez-toc-list-level-4'><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-29\" href=\"https:\/\/www.geekbuying.com\/geekgiz\/2025\/02\/how-to-achieve-color-for-the-patterns-engraved-by-laser-engraver\/#Adjusting_the_laser_power\" title=\"Adjusting the laser power\">Adjusting the laser power<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-30\" href=\"https:\/\/www.geekbuying.com\/geekgiz\/2025\/02\/how-to-achieve-color-for-the-patterns-engraved-by-laser-engraver\/#Adjusting_the_laser_frequency\" title=\"Adjusting the laser frequency\">Adjusting the laser frequency<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-31\" href=\"https:\/\/www.geekbuying.com\/geekgiz\/2025\/02\/how-to-achieve-color-for-the-patterns-engraved-by-laser-engraver\/#Adjusting_the_engraving_speed\" title=\"Adjusting the engraving speed\">Adjusting the engraving speed<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-32\" href=\"https:\/\/www.geekbuying.com\/geekgiz\/2025\/02\/how-to-achieve-color-for-the-patterns-engraved-by-laser-engraver\/#Adjusting_the_focal_length\" title=\"Adjusting the focal length\">Adjusting the focal length<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-33\" href=\"https:\/\/www.geekbuying.com\/geekgiz\/2025\/02\/how-to-achieve-color-for-the-patterns-engraved-by-laser-engraver\/#Use_the_grayscale_matrix\" title=\"Use the grayscale matrix\">Use the grayscale matrix<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-34\" href=\"https:\/\/www.geekbuying.com\/geekgiz\/2025\/02\/how-to-achieve-color-for-the-patterns-engraved-by-laser-engraver\/#Matching_materials_and_laser_wavelengths\" title=\"Matching materials and laser wavelengths\">Matching materials and laser wavelengths<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-35\" href=\"https:\/\/www.geekbuying.com\/geekgiz\/2025\/02\/how-to-achieve-color-for-the-patterns-engraved-by-laser-engraver\/#The_quality_of_the_optical_focusing_lens\" title=\"The quality of the optical focusing lens\">The quality of the optical focusing lens<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-36\" href=\"https:\/\/www.geekbuying.com\/geekgiz\/2025\/02\/how-to-achieve-color-for-the-patterns-engraved-by-laser-engraver\/#Impurities_in_the_processed_object\" title=\"Impurities in the processed object\">Impurities in the processed object<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-37\" href=\"https:\/\/www.geekbuying.com\/geekgiz\/2025\/02\/how-to-achieve-color-for-the-patterns-engraved-by-laser-engraver\/#Different_atomic_ratios_in_the_material_of_the_object\" title=\"Different atomic ratios in the material of the object\">Different atomic ratios in the material of the object<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-38\" href=\"https:\/\/www.geekbuying.com\/geekgiz\/2025\/02\/how-to-achieve-color-for-the-patterns-engraved-by-laser-engraver\/#Temperature_of_the_object_being_processed\" title=\"Temperature of the object being processed\">Temperature of the object being processed<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h3><span class=\"ez-toc-section\" id=\"Diode_Laser_Engraver\"><\/span>Diode Laser Engraver<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Diode laser engraving machine mainly relies on the following methods to achieve color patterns:<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Oxidation_of_material_surface\"><\/span>Oxidation of material surface<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Diode laser engraving machine uses laser energy to instantly oxidize the surface of the material, thereby producing a color effect. This oxidation process can produce a variety of colors, depending on the parameters of the laser and the material properties.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Precise_control_of_laser_parameters\"><\/span>Precise control of laser parameters<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>By precisely controlling the energy density and temperature of the laser, the thickness of the oxide film on the metal surface can be adjusted to achieve different color laser marking effects. This method can form a translucent oxide film on metal materials such as stainless steel, producing a color effect.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Use_MOPA_technology\"><\/span>Use MOPA technology<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>MOPA (Master Oscillator Power Amplifier) fiber laser technology can provide precise control of pulse frequency and width, adjust the power density and marking temperature of the laser, and obtain excellent color marking effects.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Natural_oxidation_or_use_of_colorants\"><\/span>Natural oxidation or use of colorants<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>On metals, color laser engraving is usually achieved by oxidation. The laser heats the metal surface causing it to melt and oxidize, forming a colored oxide layer. On plastics, vibrant colors can be produced by using colored plastics or by applying colorants to the plastic surface, which then melt and bond to the material during the laser engraving process.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Raster_method\"><\/span>Raster method<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>A colored oxide layer is applied to the metal surface, and when the laser melts the metal and oxide layer, a vibrant colored engraving is formed.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Using_software_and_laser_engravers\"><\/span>Using software and laser engravers<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Design and control using software such as LightBurn, which can handle a variety of file formats and has options such as optimization and advanced setting controls, adjust the designs until they are just right for the perfect effect.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Characteristics_of_diode_lasers\"><\/span>Characteristics of diode lasers<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Diode lasers (also known as continuous lasers) have made significant progress in laser integration technology, with power levels of up to 20W, 40W and even 80W, which can form translucent films on stainless steel surfaces, but due to the somewhat unstable nature of diode lasers, the resulting color may vary.<\/p>\n<p>In summary, the realization of color patterns by diode laser engravers mainly relies on the oxidation effect produced by the interaction of the laser with the material, as well as the adjustment of color through precise control of laser parameters by software. These technologies can be applied to a variety of materials such as metals and plastics to create colorful patterns and designs.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"CO2_Laser_Engraver\"><\/span>CO2 Laser Engraver<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>CO2 laser engraving machine can engrave colorful patterns mainly in the following ways:<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Using_optical_diffraction\"><\/span>Using optical diffraction<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Use short pulse laser to make nano-scale strip structures on the surface of the material, showing different colors at different angles. This principle does not require the help of dyes and other chemicals and belongs to direct processing.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Laser_ablation_oxidation\"><\/span>Laser ablation oxidation<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Use laser ablation to ablate and oxidize the surface of metal (mainly stainless steel) to show different colors, and this color generally does not change with angle.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Oxidation_method\"><\/span>Oxidation method<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>The laser melts the metal surface, causing oxidation, and a colored layer will form when cooling. The color achieved depends on the laser settings and the type of metal used.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Grating_method\"><\/span>Grating method<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>This involves applying a colored oxide layer to the metal surface. When the laser melts the metal and the oxide layer, a vibrant, colorful engraving is completed.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Using_colored_plastics\"><\/span>Using colored plastics<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Engraving on colored plastics can produce contrasting colors in the engraved area, thereby achieving a colorful effect.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Use_of_colorants\"><\/span>Use of colorants<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Colorants are applied to the plastic surface, which then melts and combines with the material during the laser engraving process, producing bright colors.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"MOPA_fiber_laser_technology\"><\/span>MOPA fiber laser technology<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>MOPA technology enhances the power of the laser beam, increasing its intensity and diversity. MOPA lasers are particularly effective for color engraving on metals and other materials, creating a surface oxide layer or incorporating colorants into hard plastics and acrylic resins.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Precise_control_of_laser_parameters-2\"><\/span>Precise control of laser parameters<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>By precisely controlling the energy density and temperature of the laser, and thereby adjusting the thickness of the oxide film on the metal surface, different color laser marking effects can be achieved.<\/p>\n<p>Through the above methods, CO2 laser engraving machines can achieve colorful pattern engraving on a variety of materials such as metals and plastics. Each method has its specific application scenarios and effects, and users can choose the appropriate method according to their specific needs.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Infrared_Laser_Engraver\"><\/span>Infrared Laser Engraver<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Infrared laser engraving machine engraves color patterns mainly through the following methods:<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Laser_Induced_Periodic_Surface_Structure_LIPSS\"><\/span>Laser Induced Periodic Surface Structure (LIPSS)<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>A periodic stripe structure is formed on the surface of the material by laser. When the light is irradiated at a specific angle, different orders of diffraction light are generated, forming a bright surface color. This method is angle-dependent.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Thin_film_interference\"><\/span>Thin film interference<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Multiple layers of thin film are coated on the silicon surface, and the thickness of the surface film and oxide film are regulated by laser to form different colors with a rich color range.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Metal_nanoparticle_plasmon\"><\/span>Metal nanoparticle plasmon<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>The surface plasmon resonance (SPR) effect of metal nanoparticles is used to produce color.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Oxidation_method-2\"><\/span>Oxidation method<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>The laser melts the metal surface, causing oxidation, and a colored layer is formed when cooling. The color achieved depends on the laser setting and the type of metal used.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Grating_method-2\"><\/span>Grating method<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>A colored oxide layer is applied to the metal surface, and when the laser melts the metal and the oxide layer, a vibrant color engraving is formed.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Use_colored_plastics\"><\/span>Use colored plastics<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Engraving on colored plastics can create contrasting colors in the engraved area, thus achieving a colorful effect.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Use_colorants\"><\/span>Use colorants<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Colorants are applied to the plastic surface, which then melts and combines with the material during the laser engraving process, producing bright colors.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"MOPA_fiber_laser_technology-2\"><\/span>MOPA fiber laser technology<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>MOPA technology enhances the power of the laser beam, increasing its intensity and diversity. MOPA lasers are particularly effective for color engraving on metals and other materials, creating a surface oxide layer or incorporating colorants into hard plastics and acrylic resins.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Precise_control_of_laser_parameters-3\"><\/span>Precise control of laser parameters<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>By precisely controlling the energy density and temperature of the laser, the thickness of the oxide film on the metal surface can be adjusted to achieve different color laser marking effects.<\/p>\n<p>Through the above methods, infrared laser engraver can achieve colorful pattern engraving on a variety of materials such as metals and plastics. Each method has its specific application scenarios and effects, and users can choose the appropriate method according to their specific needs.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"How_to_Control_the_Depth_of_Color\"><\/span>How to Control the Depth of Color?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Controlling the depth of color of the color pattern engraved by the\u00a0laser engraver can be achieved through the following aspects:<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Adjusting_the_laser_power\"><\/span>Adjusting the laser power<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>By increasing or decreasing the laser power, the depth of the engraving can be affected. Increasing the laser power will make the engraving deeper, which may produce a deeper color effect.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Adjusting_the_laser_frequency\"><\/span>Adjusting the laser frequency<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Different laser frequencies will also lead to differences in marking effects and colors. Some laser engraving machines can be adjusted to very high frequencies to produce different color effects.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Adjusting_the_engraving_speed\"><\/span>Adjusting the engraving speed<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>When the laser power is fixed, the faster the laser execution head moves, the shorter the laser beam stays on the processed object, and the less laser energy is absorbed by the object. Therefore, the greater the working speed, the lighter the engraving color.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Adjusting_the_focal_length\"><\/span>Adjusting the focal length<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>The adjustment of the positive focus and defocus amount will also affect the marking effect. For example, to achieve a black effect on high carbon steel or stainless steel, it is necessary to appropriately reduce the speed and energy, increase the frequency, and adjust the positive defocus amount to achieve the best effect.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Use_the_grayscale_matrix\"><\/span>Use the grayscale matrix<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>The grayscale matrix allows you to quickly and easily determine the required color depth. The test matrix consists of 100 different shades of gray, and using the Relief function in the Ruby\u00ae or JobControl\u00ae printer driver, you can determine the appropriate parameters.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Matching_materials_and_laser_wavelengths\"><\/span>Matching materials and laser wavelengths<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Different laser wavelengths will produce different color reactions on different materials. For example, a CO2 laser engraver will produce red markings on a PVC water pipe, while a fiber or semiconductor laser engraver using a 1064NM wavelength will produce black markings.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"The_quality_of_the_optical_focusing_lens\"><\/span>The quality of the optical focusing lens<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Using high-quality beam expanders and field lenses can provide better focusing, which will affect the marking color.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Impurities_in_the_processed_object\"><\/span>Impurities in the processed object<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Impurities in the processed part will also affect the color effect. For example, there is a difference in the marking effect and color between imported acrylic and domestic acrylic, the latter containing more useless impurities.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Different_atomic_ratios_in_the_material_of_the_object\"><\/span>Different atomic ratios in the material of the object<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>High carbon steel has a high carbon content, which makes it easier to produce a deep black color and better results.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Temperature_of_the_object_being_processed\"><\/span>Temperature of the object being processed<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>The temperature of the object being processed will also affect the color of the engraving. For example, when marking on ceramics, adding colored paper can produce different color effects.<\/p>\n<p>The above method can effectively control the color depth of the color pattern engraved by the laser engraving machine. It should be noted that each material and laser type may require different parameter settings, so in actual operation, multiple tests may be required to find the best settings.<\/p>\n<!-- AddThis Advanced Settings generic via filter on the_content --><!-- AddThis Share Buttons generic via filter on the_content -->","protected":false},"excerpt":{"rendered":"<p>Diode Laser Engraver Diode laser engraving machine mainly relies on the following methods to achieve color patterns: Oxidation of material surface Diode laser engraving machine uses laser energy to instantly [&hellip;]<!-- AddThis Advanced Settings generic via filter on wp_trim_excerpt --><!-- AddThis Share Buttons generic via filter on wp_trim_excerpt 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