Irreplaceable and used in all industries, from automotive, medical or to the general public, plastic materials need to be identified and traced. Gravotech is a plastic supplier and maker since 1978.

Izdelujemo dvoslojno plastiko, izdelano iz abs ali akrila, z različnimi barvami. Večina naših svetovno znanih blagovnih znamk, kot so Gravoply ™, Metallex ™, Gravoglas ™ 2-Plex ™ ali Gravotac ™, so postale sinonim za kakovost in so referenca za konkurente.

Naša široka paleta materialov vključuje več kot 900 možnosti, posebej razvitih za graviranje in rezanje. “Površinsko” ali “zrcalno” graviranje, lasersko označevanje ali rezanje z rezkarjem je na voljo v različnih barvah in debelinah med 0,09 mm in 10 mm.

Imamo različne vrste površin, mat, sijajne, satenske, teksturirane, kovinske in brušene. Večina naših materialov je kompatibilnih za digitalni tisk. To je zagotovilo, da boste našli pravi izdelek za svojo aplikacijo.

Naši ABS in akrilni materiali so čisti in izbrani med najboljšimi. Vsaka komponenta je predmet skrbnega postopka izbire ob upoštevanju normativnih in okoljskih obveznosti (RoHS **, REACH ***).

Od proizvodnje tehnične plastike do končnega izdelka so rešitve Gravotecha oblikovane in optimizirane za označevanje vseh vrst plastike, tako naravne, barvne in prozorne, ojačane z več dodatki. Glede na vrsto plastike in izbrano tehnologijo označevanja, spremembo barve, ablacijo zgornje plasti, graviranje itd., je mogoče doseči različne rezultate označevanja.

Rotacijsko graviranje na plastiko

Postopek rotacijskega graviranja uporablja vrtljivo rezalno orodje za odstranjevanje materiala.

Lahko odstranite celotno širino materiala za rezanje in ustvarjanje oblik ali samo na vnaprej določeni globini, da ustvarite vgravirane utore in oblikujete črke, logotipe in grafike.

Plastične plošče za graviranje so dolgoletni partner rotacijskega gravirnega stroja. Ustvarite kontrast tako, da z rezalnimi orodji odstranite barvno zgornjo površino materiala in pustite, da se pojavi podpovršina plastike.

Rotacijski stroji za graviranje so zelo vsestranski in lahko gravirajo vse vrste plastike, izdelane za rotacijsko ali lasersko graviranje

Ko se navadna plastika mehansko gravira, je kontrast možen z dodajanjem barvnega materiala v utor, kjer je bil material odstranjen.

Gravotech ponuja široko paleto barvil, vključno z barvami in hladnim voskom. Po gravuri preprosto nanesite barvo, da dobite jasen in obstojen kontrast.

Nekontrastna oznaka, pridobljena s tesnimi udarci na površino plastike.

Vidna oznaka je namenjena identifikaciji in se lahko izvede na večini plastike.

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Plastic laser engraving

The structure of the individual molecules or additives, such as color pigments, are directly changed or destroyed through laser marking. A change in color or bleaching is then visible on the material, creating a marking.

The coloring is lighter or darker depending on the composition: darker plastics fade to white/beige in the marked areas, while lighter plastics fade to grey or black. The surface stays smooth, but this can be done only in specific plastics.

  • Photochemical reactions of the molecules of plastics.
  • Usually, special additives are mixed into the plastics themselves.
  • High-speed marking.
  • Surface marking.
  • Green or hybrid laser efficient on colored plastics.
  • Contrasted marking.

Foaming is a contrasted marking only possible on certain plastics and is usually clear on dark plastics. The laser melts the plastic locally, creating gas bubbles in the material. As it cools down, these gas bubbles are encapsulated in the material, creating a thin layer on the surface: the marking.

  • Melting process.
  • Inclusion of gas bubbles or impurities.
  • High-speed marking.
  • Work on some plastics, especially on black plastics.
  • Hybrid or Fiber.

Contrasted marking obtained by making color appear on the lower layer. Can be done on all kinds of plastics with a plastic laser engraver. Color and material removal marking is mainly used in coated materials. The existing color, coating and surface layers are partially removed and the base material becomes visible.

The layers to be removed absorb the laser light, the material heats up and vaporizes at the affected areas. As the surface layer and the protruding base material have different colors or the base material is often backlit, the marking becomes clear and visible.

  • The laser removes the top layer without damaging the lower surface.
  • High speed.
  • Green laser.

This engraving effect creates a non-contrasted marking. Can be done on all kinds of plastics. When engraving by laser marking, the material is removed from the surface of the component to be processed. The beam penetrates the surface and removes it.

In the case of transparent materials, as the material is simultaneously heated and reacts with the ambient air, discoloration often occurs in the engraving areas. This is a shadow effect in the depression, which depends on the transparency of the laser light and the penetration depth of the laser radiation.

  • Melting / Vaporization process. – Scribing effect.
  • High-speed marking.
  • Work on all plastics.
  • CO2 is the only solution for transparent plastics.
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Which laser source for plastic engraving?

Different options for different plastic engraving results

Marking interaction obtained with laser depends on the plastic category (divided up into thermoplastics, thermosetting plastics and elastomers), their capacity to absorb the light and different wavelengths, the color of the plastic and the kind of additive used on their composition.

Our application laboratory can make free samples to help you choose the best technology depending on your requirements. We master all the laser technologies and we can propose them in High-speed Galvo systems or X/Y Gantry systems allowing marking, engraving and cutting on almost all types of plastic material and all parts sizes.

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Plastic brush personalized with name

Plastic indoor signage with ADA Braille

Plastic component engraved with datamatrix

Plastic bookmark engraved

Indoor signage made of plastic engraved

Damatrix marking on a plastic part

Glasses personalization

Engraving plastic for identification

Datamatrix marking on a plastic component

Top layer ablation of plastic materials