Embodiments of present disclosure discloses system and method for performing laser marking. Initially, a first image of a region to be laser marked may be captured and compared with a predefined image of a predefined pattern to be laser marked on the region. By the comparison, a first score may be computed. The first score may indicate marking present in the region to be laser marked, in relation to the predefined image. Further, a co-ordinate data of a configuration file, relating to the predefined pattern, in the laser marking system may be modified based on the first score, for performing the laser marking on the region.

Techniques are described herein that mitigate warpage during laser marking on a plastic security document. A method of laser marking a feature onto a plastic card includes electronically dividing an image of the feature into a plurality of sections. The method includes laser marking a first one of the sections on the document and laser marking a second one of the sections on the document. The first section is not contiguous with the second section.

A universal or all-purpose laser marking composition for forming satisfactorily dark laser marks on a wide variety of substrates is provided. The marking composition comprises an enhancer of nitrides, carbides, silicides, and combinations thereof. The enhancer may be selected one or more of ferromanganese, ferrosilicon, Fe.sub.xSi.sub.(1-x) where X can range from about 0.005 to 0.995, Fe.sub.5Si.sub.2, MgFeSi, SiC, CaSi, (Co)Mo, MoSi.sub.2, TiSi.sub.2, ZrSi.sub.2, WSi.sub.2, MnSi.sub.2, YSi, Cu.sub.5Si, Ni.sub.2Si, Fe.sub.3C, Fe.sub.7C.sub.3 and Fe.sub.2C, MoC, Mo.sub.2C, Mo.sub.3C.sub.2, YC.sub.2, WC, Al.sub.4C.sub.3, Mg.sub.2C, Mg.sub.2C.sub.3, CaC.sub.2, LaC.sub.2, Ta.sub.4C.sub.3, Fe.sub.2N, Fe.sub.3N, Fe.sub.4N, Fe.sub.7N.sub.3, Fe.sub.16N.sub.2, MoN, Mo.sub.2N, W.sub.2N, WN, WN.sub.2, and combinations thereof and combinations thereof. Upon disposing the marking composition on a substrate and exposing the marking composition to laser radiation, the marking composition absorbs the laser radiation, increases in temperature, chemically bonds with the substrate, and when formed on each of a metal, glass, ceramic, stone, and plastic substrates, the mark has a negative L dark contrast value of at least 1 compared to a mark formed by the marking composition without the enhancer.

The present invention realizes a card-use resin composition that exhibits beautiful colors and that has high laser-marking coloring properties, a card-use resin sheet formed with the card-use resin composition, and a card. The above problem has been solved by a card-use resin composition containing a laser coloring agent and a thermoplastic resin, wherein the thermoplastic resin contains a polycarbonate resin, and the laser coloring agent contains at least one type of black pigment, the primary particle diameter of the black pigment being 40 to 80 nm, and the amount of the black pigment with respect to the entire mass of the card-use resin composition being 20 to 40 mass ppm.

The present invention relates to microspheres and to the use thereof, preferably as laser-absorbing additive, and to a process for the production thereof.

The present invention relates to printed hook components for hook and loop mechanical fasteners, and other components such as on diaper chassis and other personal hygiene articles, and methods for making the same. The hook component comprises an organic polymer, a laser-sensitive agent, and a laser-induced print on the hook component created by the interaction of electromagnetic radiation with the laser-sensitive agent. The hook component can be used in a variety of applications, including mechanical fastening devices for personal hygiene articles such as diapers, adult incontinence pads, and medical gowns.

The invention relates to additive mixtures for plastics containing phosphinic acid salt of formula (I) as component A,

##STR00001##

where R.sub.1 and R.sub.2 mean ethyl, M is Al, Fe, TiO.sub.p or Zn, m means 2 to 3, preferably 2 or 3, and p=(4m)/2 is a compound selected from the group of Al salts, Fe salts, TiO.sub.p salts or Zn salts of ethylbutylphosphinic acid, dibutylphosphinic acid, ethylhexylphosphinic acid, butylhexylphosphinic acid and/or dihexylphosphinic acid as component B, phosphonic acid salt of formula (II) as component C,

##STR00002##

where R.sub.3 means ethyl, Met is Al, Fe, TiO.sub.q or Zn, n means 2 to 3, preferably 2 or 3, and q=(4n)/2, and copper as component D.

The present invention concerns a method for the partial dyeing, in particular for the colour laser engraving, of plastic components, in particular thermoplastic plastic components, more particularly thermoplastic plastic components, comprising a layer construction as well as the resulting partially dyed, preferably colour laser engraved plastic components, in particular thermoplastic plastic components.

A method is for producing an ornamental design (O) in a clearcoat layer (K). The ornamental design (O) is produced by a selective matting of the clearcoat layer (K) by working the clearcoat layer (K) by a laser. The working of the clearcoat layer may be performed by a UV laser. Additionally, the working of the clearcoat layer K may be performed by electromagnetic waves at a wavelength of about 355 nm. Furthermore, the working of the clearcoat layer K may be performed by a laser operating at a frequency of about 23 500 Hz. Still further, the working of the clearcoat layer (K) may be performed by a laser operating with a pulse duration of about 2 s. The working of the clearcoat layer (K) may be performed by a laser operating with a line spacing of about 0.03 mm

Methods of increasing the particle size of ammonium octamolybdate (AOM) pigment powder are provided. A method can include heating the AOM pigment powder to a temperature above 20 C. for a given amount of time. An ink composition can be produced by formulating AOM pigment powder with increased particle size and incorporating the AOM pigment powder into an ink composition.