Product Profile of Eco-Friendly Pigments for Coloration of Printing Inks

Indian Chemical Industries manufactures Eco-Friendly Pigments for Coloration of Printing Inks. Indian Chemical Industries is an ISO 9001 certified company that offers pigments and dyestuff. The Eco-Friendly Pigments for Coloration of Printing Inks are safe and include letterpress, offset, flexo, gravure, metal decorative, silk screen and heat set / coldset inks. The Eco-Friendly Pigments for Coloration of Printing Ink is fine stable pigment powder, which have wide compatibility with various acrylic binders used in printing ink. The pigments are selected to impart excellent dispersion characteristics with excellent gloss, transparency, Rheology, Thixotropic properties to impart good gloss and consistent colour value and tint strength. The shade illustrations printed in this brochure are printed with CMYK on offset technique. This will produce a clean, non-staining and smooth color effect to indicate approximate shade color effect, which is used as a guideline for printing inks and allied product technologies.

Colourist Properties of Eco-Friendly Inks for Coloration of Printing Inks are:

• Spectrophotometer is used to measure various colour strengths for full shade [tones].

• L = Lightness Contribution

• C = Chroma contribution

• H = Hue angle

• CIELAB D65 = Artificial day light

Physical Properties of Eco-Friendly Inks for Coloration of Printing Inks are:

• Specific Gravity: Specific gravity has been determined in an inert liquid at 20 Degree C.

• Sieve Residue: Weighed quantity of pigment in water is measured and wet sieving of pigment water slurry under running water tap is weighed. Residue obtained on 240- mesh screen is dried and weighed. This is noted as per DIN 53195.

• Moisture Content: Pigment sample is heated under infrared lamp at 105øC. When constant weight is reached, the loss of weight of volatile matter is noted as moisture content. This is as per ISO 787/2.

• PH of Water extract: Aqueous pigment slurry of 5% pigment is filtered off. Calibered glass electrode pH meter at normal room temperature measures the pH value of filtrate.