Printing applications

Contact Us

TEL: +86-377-66082663
Fax: +86-377-66082669
E-mail: yangz@chinalingbao.com
Address: Li He Ecosystem Industrial Zone, Wancheng District, Nanyang City, Henan P.R. China

Dubai MCS  March 19-21 STAND NO.:07

Hoosier state , USA 10-12 April, 2018

Kuala Lumpur, Malaysia 11-13 September 2018

Guangzhou, China 4-6 December, 2018

Home > Printing applications

Printing applications

LingBao pearlescent  pigments have applications in  printing techniques like gravure, screen ,offset, flexo printings.

High-quality printing – in packaging or on the product itself – make products stand out from the competition. Print technologies have an enormous range of possibilities: paper goods, wallpaper, decor, and textiles, to name a few. We have the technological expertise and the materials to bring your print vision to life.

Process:

Pre-wetting: For solvent ink systems, we recommend pre-wetting pearlescent pigments with a solvent (such as ethyl alcohol, thinner or just water) in the ink system. Leave the pearlescent pigments in the solvent for a few hours to absorb as much solvent as possible before mixing pearlescent pigments into ink system. This will achieve a better dispersion and stop pearlescent pigments from clogging the scraper.

Dispersion: pearlescent pigments are easy to disperse. In low viscosity ink systems, low speed stirring is enough. We do not recommend using three-roller mill, high-speed disperse or grinding machine to avoid damage to pearlescent pigments and potentially losing the pearl effect. We suggest to adding pearlescent pigments to the ink system at the last manufacturing step to minimize damage to its structure. During the mixing process, se a fixed low speed and shorter time is recommended.

Transparent ink media: transparency of the ink is the key factor for pearl effect ink. Always use transparent ink or binder; otherwise it will significantly affect the final pearl effect.

 

Pigment distribution: when the pearlescent pigments are distributed better and more even in the ink, a greater pearl effect can be achieved: The pearlescent flakes must parallel to the substrate surface to obtain a wonderful optimal pearl effect.

Ph Value: When pearlescent pigments are used in the waterborne alkaline ink system, alkaline additives (like NH4OH) should be used to adjust the PH of pearlescent pigments surface. If one is using an alkaline thixotropic agent to adjust the ink viscosity, and the PH of the pearlescent pigments surface is lower than 7, it is necessary to adjust the PH of the pearlescent pigments surface to avoid pigments massing together or adverse changes on the ink viscosity.

Dosage: The normal pearl pigment loading quantity of the finished ink should be 15 - 25% (this proportion needs to be adjusted according to the printing method and desired final result).

For LingBao Interference pearlescent pigments do not mix two or more colours together, otherwise the pearl effect will be diminished or lost.

Mesh size: Because pearlescent pigment particle sizes are bigger than conventional pigments, one must be careful about the mesh of the cylinder. When using 5 - 25 um pearlescent pigments (average particle size 12 碌m), the appropriate mesh should be 75 - 100 lins/cm; when using 10 - 60 碌m (average particle size 25 um), the ideal mesh should be 60 lines/cm or less. For solvent ink, 50 um mesh is recommended, but in this case the ink film will become very thick, therefore the drying temperature must be adjusted.

Manufacturing speed: after the ink is transferred from cylinder to paper, make sure the ink has enough time on the paper so the pearlescent pigments pallets and the substrate surface are completely parallel to achieve the best pear effect

Substrate surface: To achieve the best pearl effect while using Pritty pearl pigments, the substrate should have a flat and smooth surface


38588170-offset-printing-press-and-ink-pot(1)(001).jpgBC-solvent-vs-water-2(1)(001).jpgprinting-dublin(1)(001).jpg



cmyk-e1418997062889(1)(001).jpgScreen-Printing-Ink-PVC-Ink-Light-102-White-Print-PVC-SS-Paint-Solvent-Based-Coating-Pigment(1)(001).jpgu=1921081725,3346435124&fm=27&gp=0(1)(001).jpg



almar-printing-ink-color-large(1)(001).jpgink(1)(001).jpgScreen-Printing-Noloy-Ink-High-Waterproof-102-White-Print-Fabric-Leather-SNB-TPU-Solvent-Based-Pigment(1)(001).jpg