Gravure and flexo printing

Both the gravure and flexo printing processes utilize low viscosity "liquid inks". The flexibility of this ink technology allows these print processes to cover a wide spectrum of applications for packaging materials (for food, tobacco products, cosmetics) on a variety of substrates (paper, cardboard, plastic, foils, labels and more).

The selection of suitable SCHLENK metal pigments depends on several factors. These include the desired effect, the required technical print characteristics, the machine configuration and the legal provisions and directives with regard to food (primarily in the area of food packaging and in the tobacco industry).

The technology of flexo and gravure printing allows coarser metal pigments to be used, so high quality print effects with outstanding metallic brilliance can be achieved.                                                                                                                        

  • Aluminium pigments:  6 – 18 µm
  • Vacuum metallized pigments: 10 – 14 µm
  • Gold bronze pigments:  4 – 10 µm

Particularly high quality aluminium pigments "silver dollars" and, above all, VMPs produce metallic effects that correspond with those achieved by hot stamping. For this reason, they are perfectly suited for use in printing for packaging and labels.

Recommended products

Products connected:

Ethyl acetate (ET) aluminium paste

Special solvent pastes designed for use with specific formulations are available for use in gravure, flexo and screen printing inks. Selection is based on the printing process and drying speed requirements, as well as on the substrate limitations.

D 50 value [µm] Solid content Solvent Application
ET/1700 18 60 ethylacetate
ET/1800 14 60 ethylacetate
ET/2900 11 60 ethylacetate
ET/7600 13 60 ethylacetate
ET/8500 15 60 ethylacetate

Methoxy propanol (PM) aluminium paste

Special solvent pastes designed for use with specific formulations are available for use in gravure, flexo and screen printing inks. Selection is based on the printing process and drying speed requirements, as well as on the substrate limitations.

D 50 value [µm] Solid content Solvent Application
PM/990 17 65 Methoxypropanol
PM/1190 13 65 Methoxypropanol
PM/1380 10 65 Methoxypropanol
PM/2140 13 65 Methoxypropanol

PP aluminium powders

PP aluminium powders are brilliant leafing aluminium powders for gravure, flexo and screen printing applications.

For improved processing safety, pastes that contain solvents or water-based pastes are also available.

D 50 value [µm] Solid content Application
PP/980 17 100
PP/1180 13 100
PP/1380 10 100

Aquador®

The Aquador® series includes stabilized water-based pastes in a fineness range of 5–50 µm. They are successfully used in water-based gravure, flexo and screen printing inks.

Colors: Rich gold, rich pale gold and pale gold (other colors by request) Form of delivery: Water pastes

D 50 value [µm] Solid content Solvent Application
Aquador 4030 8.5 70 water
Aquador 4117 9.5 70 water
Aquador 4120 8 70 water
Aquador 4160 5 70 water
Aquador 4220 9 70 water
Aquador 4310 10 70 water
Aquador 4320 9 70 water
Aquador 4330 8 70 water
Aquador 4350 6 70 water
Aquador 4360 5 70 water
Aquador 4270 4 70 water

Aquamet®

Stabilized, non-leafing aluminium water pastes with various particle morphology (both "cornflakes" and "silver dollars") for water-based gravure, flexo and screen printing inks.

D 50 value [µm] Solid content Solvent Application
Aquamet NPW/1700 18 60 water
Aquamet NPW/2900 11 60 water
Aquamet NPW/8500 15 65 water

Aquasilber®

Stabilized, leafing aluminium water pastes for water-based gravure, flexo and screen printing inks with gassing stability.

D 50 value [µm] Solid content Solvent Application
Aquasilber LPW/980 17 65 water
Aquasilber LPW/1180 13 65 water
Aquasilber LPW/1380 10 65 water
Aquasilber LPW/2140 13 65 water

Decomet®

Decomet® is the product name for vacuum metalized pigments (VMPs) by SCHLENK. The manufacturing process makes these pigments extremely thin, and in appearance they are extremely smooth and highly reflective when being applied on foils.

Decomet pigments can be used in sheetfed offset, gravure, flexo and screen printing inks. They can achieve effects similar to those produced with metalized substrates and foils, and because they are non-leafing, the effects can also be tinted with color pigments. Special compositions for water-based and UV curable inks complete the range of this highly attractive product range.

D 50 value [µm] Solid content Solvent Application
Decomet 0604 12/10 B0 12 10 Ethylacetate
Decomet 1004/10 12-15 10 Ethylacetate
Decomet 2004 07/10 C0 7 10 Ethylacetate
Decomet 2004/10 12-15 10 Ethylacetate
Decomet 2104/10 10-11 10 Ethylacetat
Decomet 3004 07/10 C0 7 10 Ethylacetate
Decomet 3004/10 11-14 10 Ethylacetate
Decomet 3104/10 10-11 10 Ethylacetate
Decomet 4004 10/10 C0 10 Ethylacetate
Decomet 4004/10 11-14 10 Ethylacetate
Decomet 5004/10 12 10 Ethylacetate
Decomet 1008/10 12-15 10 methoxypropyl acetate
Decomet 2008/10 12-15 10 methoxypropyl acetate
Decomet 2108/10 10-11 10 methoxypropyl acetate
Decomet 3008/10 11-14 10 methoxypropyl acetate
Decomet 3108/10 10-11 10 methoxypropyl acetate
Decomet 3508/10 methoxypropyl acetate
Decomet 4008/10 11-14 10 methoxypropyl acetate
Decomet 3109/10 10-11 10 n-Propylacetate
Decomet 1050/10 12-15 10 water
Decomet 3504/10 10 Ethylacetate

Ethyl acetate (ET) gold bronze paste

Special solvent pastes designed for use with specific formulations are available for use in gravure, flexo and screen printing inks. Selection is based on the printing process and drying speed requirements, as well as on the substrate limitations.

D 50 value [µm] Solid content Solvent Application
ET/4117 9.5 88 ethylacetate
ET/4120 8 88 ethylacetate
ET/4160 5 88 ethylacetate
ET/4220 9 88 ethylacetate
ET/4320 9 88 ethylacetate
ET/4330 8 88 ethylacetate
ET/4350 6 88 ethylacetate

Grandal® W

Grandal® W are aluminium granules for water borne systems based on non-leafing aluminium pigments.

D 50 value [µm] Solid content Solvent Application
Grandal W/170 6 80 urea-aldehyde resin
Grandal W/8500 15 80 urea-aldehyde resin
Grandal W/2900 11 80 urea-aldehyde resin
Grandal W/9600 13 80 urea-aldehyde resin
Grandal W/9800 8.5 80 urea-aldehyde resin
Grandal W/8500 15 80 water
Grandal W/9600 13 80 water
Grandal W/9800 8.5 80 water

Grandal®

Grandal® products are aluminium pellets offered by SCHLENK and typically consist of approx. 95% pigment and 5% binder. They allow dust-free processing, are easy to dose and disperse, and can be used in a variety of formulations because unlike pastes they do not contain specific solvents.

Both leafing and non-leafing aluminium pigments are available in this delivery form, along with Grandal W versions for water-based printing inks and in the Grandal 170 for energy curable systems.

D 50 value [µm] Solid content Solvent Application
Grandal 140 13 95 urea-aldehyde resin
Grandal 170 6 95 urea-aldehyde resin
Grandal 1380 10 95 urea-aldehyde resin
Grandal 1800 14 95 urea-aldehyde resin
Grandal 2140 13 95 urea-aldehyde resin
Grandal 2900 11 95 urea-aldehyde resin
Grandal 6900 15 95 urea-aldehyde resin
Grandal 7600 13 80 urea-aldehyde resin
Grandal 7950 6 95 carrier resin
Grandal 8500 15 80 urea-aldehyde resin
Grandal 9600 14 80 urea-aldehyde resin
Grandal 9800-2G/80 8.5 80 carrier resin
Grandal 7950/95 6 95 urea aldehyde resin

Grandor®

The Grandor® types are pigment preparations in pellet form consisting of approx. 95% pigment and 5% binder for solvent based gravure, flexo and screen printing inks. The Grandor W series (with a water soluble carrier resin) are available for water-based systems.

Colors: Rich gold, rich pale gold and pale gold (other colors by request) Form of delivery: Dust-free pellets that are easy to dose.

D 50 value [µm] Solid content Solvent Application
Grandor 4220 9 95 urea-aldehyde resin
Grandor 4270 4 95 urea-aldehyde resin
Grandor 4320 9 95 urea-aldehyde resin
Grandor 4330 8 95 urea-aldehyde resin
Grandor 4350 6 95 urea-aldehyde resin
Grandor 4360 5 95 urea-aldehyde resin
Grandor 426 n.l. 9 95 urea-aldehyde resin
Grandor W/4220 9 95 urea-aldehyde resin
Grandor W/4320 9 95 urea-aldehyde resin
Grandor W/4330 8 95 urea-aldehyde resin
Grandor W/4350 6 95 urea-aldehyde resin

Metaface®

Metaface® aluminium powders that provide high brilliance, good coverage and excellent printability. They are available as powders, water-based pastes or UV pastes.

D 50 value [µm] Solid content Solvent Application
Metaface 2140 13 100 -
Metaface UV-TE/2140 13 65 Oligodiacrylat

Metaprint® FlexoCare aqua

Metaprint® FlexoCare Aqua Gold & Silver is an innovative press ready metallic ink series that delivers state of the art printing performance. The new inks are suitable for low migration food packaging printing applications on paper and cardboard.

Shade Application
Metaprint® FlexoCare aqua 342-01 rich gold
Metaprint® FlexoCare aqua 342-02 rich pale gold
Metaprint® FlexoCare aqua 342-03 pale gold
Metaprint® FlexoCare aqua 342-07 silver
Metaprint® FlexoCare aqua 342-08 silver non-leafing

Metaprint® RotoBright

Metaprint® RotoBright is a solvent-based gravure printing ink based on non-leafing, silver dollar pigments.

The RotoBright series delivers excellent metallic effects on coating paper, cardboard and labels.

Shade Application
RotoBright 503-07 Silver
RotoBright 503-17 Silver
RotoBright 503-27 Silver

Metaprint® RotoBright aqua

Metaprint® RotoBright aqua is a water-based gravure printing ink based on non-leafing, silver dollar pigments.

Shade Application
RotoBright aqua 533-01 Rich Gold
RotoBright aqua 533-02 Rich Pale Gold
RotoBright aqua 533-03 Pale Gold
RotoBright aqua 533-07 Silver

Metaprint® RotoLux

Metaprint® RotoLux is a solvent- based gravure printing ink based on DECOMET®. RotoLux printing inks produce a highly reflective appearance.

The best results can be achieved on high gloss paper and smooth plastic substrates. A mixture of colorants can be use to produce polychromatic colors.

Shade Application
RotoLux 505-09 Silver
RotoLux 505-19 Silver
RotoLux 505-29 Silver
RotoLux 505-39 Silver

Multiprint®

The pigments in the Multiprint® series are in a fineness range from 4 to 10 µm and correspond with the optical requirements, the desired coverage and the process parameters on the printing machine.

Colors: Rich gold, rich pale gold and pale gold (other colors by request) Form of delivery: Powder, pastes in ethyl acetate (or other solvents), as water-based Aquador® pastes, as UV pastes and as Grandor® granules for solvent based printing inks and Grandor® W for water-based printing inks. Use in gravure and flexo printing inks and in screen printing.

D 50 value [µm] Solid content Application
Multiprint 4117 9.5 100
Multiprint 4120 8 100
Multiprint 4160 5 100
Multiprint 4220 9 100
Multiprint 4270 4 100
Multiprint 4310 10 100
Multiprint 4320 9 100
Multiprint 4330 8 100
Multiprint 4350 6 100
Multiprint 4360 5 100

Unicoat®

The Unicoat® series a fineness range > 10 µm is primarily used in screen printing.

Colors: Rich gold, rich pale gold and pale gold (other colors by request). Form of delivery: Powder and water-based Aquador compositions in paste form (typical ink solvents by request).

D 50 value [µm] Solid content Application
Unicoat 3050 11.5 100

UV

VOC-free paste forms in oligoacrylates are available for use in UV curable offset, gravure, flexo and screen printing inks. These can be found under the ""UV"" product designation.

Colors: Rich gold, rich pale gold and pale gold (other colors by request) Form of delivery: Pastes

D 50 value [µm] Solid content Solvent Application
UV/4160 5 80 Oligodiacrylat
UV/4360 5 80 Oligodiacrylat

If you would like further information we would be happy to assist you.

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