Our Products for Printing Inks
Specialty Silica |
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Applications | Properties / Suitability | |
SIPERNAT® 22 S | Reduces spray in offset printing processes. | |
SIPERNAT® 320 DS | Reduction of the misting of offset inks. | |
SIPERNAT® 820 A | Extender for increasing thixotrophy and print sharpness. Reduces spray of roll offset inks. | |
SIPERNAT® FPS 5 | extender / matting of printing inks | |
Pigment BlacksQuality criteria for black printing ink
The requirements listed, however, represent a compromise as high color density implies fine-particulate small particle size pigment blacks that aren’t particularly prone to a blue tint in printing inks. The color tone of a pigment black depends mostly on the particle size (medium particle size) and the dispersion rate achieved. The finer the particles of the pigment black, the deeper the color and the browner the pigment will appear. The larger the particles, the lower the color depth and the more blue the pigment will appear. Brilliance or gloss is not greatly affected by particle size. Structure, on the other hand, plays an important role in achievable gloss. Color density, tone and gloss are also a function of the degree of coverage and dispersion achieved. Effects
Coloring and tinting Coloring, Thickening
The coloring component comprises the elements of color density (color depth), tone and brilliance, while the rheological component focuses on the parameters of viscosity, flow characteristics and printing ink stability. Color Density, Tone We can therefore infer:
Rheology Fine pigment blacks have a relatively high BET surface, which requires a higher binding agents demand and results in a marked thickening effect. As particle size increases, the BET surface gets smaller and so does the binding agent demand. The thickening effect is reduced as well. This means:
Structure
The measure for the structure of pigment furnace blacks is DBP (Dibutylphthalate) absorption. If DBP absorption is high, we’re dealing with a high-structured pigment black; if it is low, the pigment black is of the low-structured kind. Printing ink blacks are in the 40 to 125 ml / 100 g DBP absorption range. Pigment blacks that have a DBP value lower than 90 ml / 100 g fall into the category “low structure”. A higher structure is an advantage when it comes to dispersion, as these kinds of pigment blacks can be much more easily dispersed in the ink to be pigmented. At the same time, the higher DBP absorption also means significant thickening and a high yield value – while the lower DPB absorption has a less pronounced thickening effect and results in better flow characteristics for the printing ink. Also, holdout is better in high-structure pigment blacks. Low-structure blacks have a tendency to bleed through the print medium, too. Since the high-structure pigment blacks tend to stay at the surface of the print medium, they feature less gloss and rub resistance. Printing results are smoother with low-structure pigment blacks because the smaller pigment clusters penetrate deeper into the print medium, resulting in better gloss and rub resistance. High Structure
Low Structure
When gas blacks are used, the criterion is no longer DBP absorption but oil requirement, which also gives a good indication of thickening properties. Gas blacks essentially come with a high structure with good flow characteristics. Electrical Conductivity UV Application Recommendations Offset inks (heatset inks, sheetfed offset inks) on coated stock Offset inks on non-coated stock – Offset inks – Newspaper inks Nowadays, beaded blacks are usually the norm rather than powder blacks. The beaded version does not produce any dust and greatly facilitates handling in automated processes. Of the available versions (oil, dry or wet), the oil-beaded pigment blacks are becoming more and more popular on account of their relatively trouble-free dispersion. -Magazine inks -Decorative and packaging inks Water-soluble inks are also gaining in importance, particularly in the packaging printing industry. Here, low-structure and oxidized pigment blacks yield better results when it comes to printing on coated stocks, cardboard or non-absorbent surfaces. Low-structure pigment blacks display better flow characteristics and allow for higher pigment concentrations. -UV / EBC cured inks -Conductive printing inks -Metal printing inks -Special applications (small offset, steel engraving) |
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Applications | Properties / Suitability | |
ANILINE BLACK BS 890 | Matt black inks for special applications especially used for UV-curing systems as well as packaging of perfumes, magazines, leather coatings etc. | |
SPECIAL BLACK 4 A | Solvent based packaging printing inks, screen printing inks. | |
SPECIAL BLACK 4 | Solvent based flexo inks, tin printing inks UV curing printing inks, screen printing inks, copperplate printing inks. | |
SPECIAL BLACK 250 | Solvent based packaging printing inks, UV-curing printing inks. | |
SPECIAL BLACK 350 | Solvent based packaging printing inks, UV-curing printing inks, sheet-fed offset printing inks. | |
SPECIAL BLACK 550 | Sheet-fed offset printing inks, UV-curing printing inks. | |
HIBLACK® 40B2 | Conductivity | |
HIBLACK® 40L | High end offset | |
HIBLACK® 40 | High end waterbased flexo inks | |
HIBLACK® 30 | Webset inks, waterbased flexo inks | |
HIBLACK® 30L | Heatset inks, offset inks and letterpress inks and waterbased flexo inks. | |
HIBLACK® 20L | Offset and letterpress inks, heatset inks. | |
HIBLACK® 20 | Newspaper inks, waterbased packaging printing inks. | |
HIBLACK® 10 | Newspaper inks | |
HIBLACK® 5L | Offset and letterpress inks, newspaper inks, heatset inks, packaging printing inks | |
HIBLACK® 160B | Suitable for blending with other pigment blacks to increase the blue undertone. | |
PRINTEX® ES 34 | Especially for newspaper printing inks. | |
PRINTEX® 60-A | Waterbased packaging printing inks. | |
PRINTEX® L6 | For electrically conductive printing inks. | |
PRINTEX® L | Electrically conductive printing inks. | |
PRINTEX® U | Waterbased packaging printing inks, screen printing. | |
PRINTEX® V | Waterbased packaging printing inks, magazine gravure inks. | |
PRINTEX® 140 U | Water- and solvent based printing inks. | |
PRINTEX® 140 V | Water- and solvent based printing inks. | |
PRINTEX® XE2-B | Limited applications due to high structure and high BET-surface area. | |
PRINTEX® XE2 | Limited applications due to high structure and high BET-surface area. | |
PRINTEX® A | For producing matt printing inks, also suitable for blending with other pigment blacks to increase the blue undertone of black printing inks. | |
PRINTEX® 12 | Blending with other pigment blacks to increase the blue undertone of black printing inks. | |
PRINTEX® 155 C | Thermal paper. | |
PRINTEX® 300 IP | General purpose heatset and waterbased inks. | |
PRINTEX® 301 | Oil based inks. | |
PRINTEX® 31 | Coldset inks. | |
PRINTEX® 25 | Heatset, publication gravure inks, flexo and gravure inks solvent based, screen printing. | |
PRINTEX® 3 | Flexo and gravure inks water based, coldset. | |
PRINTEX® 30 | Coldset, flexo and gravure inks water based, screen printing. | |
PRINTEX® 300 | Sheetfed/letterpress, Heatset, Coldset, Publication Gravure Inks, Flexo and Gravure Inks water and solvent based. | |
PRINTEX® 35 | Sheetfed/letterpress, heatset, coldset, publication gravure inks, flexo and gravure inks solvent based. | |
PRINTEX® 45 | Sheetfed/letterpress, heatset, publication gravure inks, flexo and gravure inks solvent based. | |
PRINTEX® 55 | Sheetfed/letterpress, flexo and gravure inks water based. | |
PRINTEX® 60 | Flexo and gravure inks water based, screen printing. | |
PRINTEX® G | Coldset, flexo and gravure inks water based, screen printing. | |
Matting AgentsAs the world’s largest supplier of precipitated silicas and silicates, Evonik Degussa GmbH markets Sipernat® and ACEMATT® for use in printing ink formulations. Custom products are available for the most diverse inks, including water or solvent-based rotogravure or flex print inks, offset inks or silkscreen inks. Depending on the application, Sipernat types can be used as extenders to improve flow and drying characteristics, ACEMATT® products will deliver excellent quality in matte effect and allow for optimum rheology adjustment. Evonik Degussa’s synthetically manufactured products are also characterized by good transparency compared to mineral products. |
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Applications | Properties / Suitability | |
ACEMATT® TS 100 | Overprint lacquers and printing inks | Universal, stable matting agent for overprint lacquers and printing inks, good antislip properties |
ACEMATT® OK 412 | Overprint laquers and printing inks | Universal, stable matting agent for overprint lacquers and printing inks, good antiblocking properties |
ACEMATT® OK 607 | Overprint lacquers and printing inks | Universal, stable matting agent for overprint lacquers and printing inks, good antiblocking properties |