Offset lithographic inks

Chem. Descrip. Monofunctional reactive amine with 875 ppm MEHQ Uses Coinitiator synergist used with a photosensitizer such as benzophe-none to promote rapid cure under UV light for dry offset lithographic inks and coatings, silk screen inks and varnishes, and overprint varnishes for paper, board, plastics, and metals Properties APHA 225 si. hazy liq. sp.gr. 0.9903 vise. 18 cps amine no. 135 99% reactive esters... 

Synonyms DDA Dlanol diaciylate Ethoxylated bisphenol A diactylate Uses Diluent, film-former, vehicle in offset lithographic inks for metal decorating and paper/board applies. 

Synonyms E-BPA DDA Dianol diacrylate Ethoxylated bisphenol A diacrylate Uses Diluent, film-former, vehicle in offset lithographic inks for metal decorating and paper/board applies. chemical intermediate Bisphenol A, hydrogenated CAS 80-04-6 EINECS/ELINCS 201-244-2 Synonyms 2,2-Bis (4-hydroxycyclohexyl) propane Cyclohexanol, 4,4 -isopropylidenedi- Cyclohexanol, 4,4 -(1-methylethylidene) bis- Dodecahydrobisphenol A HBPA Hydrogenated bisphenol A 1,1 -Isopropylidenebis (4-cyclohexanol) 4,4 -Isopropylidenedicyclohexanol 4,4 -(1 -Methylethylidene) biscyclohexanol Classification Nonaromatic alcohol Empirical C15H28O2... 

Bisphenol A ethoxylate diacrylate diluent, offset lithographic inks paper/board Bisphenol A ethoxylate diacrylate diluent, organic coatings 3-Heptanol... 

Hydrolyzed casein Hydrolyzed milk protein film-former, offset lithographic inks metal decorating... 

Propylene glycol dioctanoate Tricaprylin Trioctanoin vehicle, o/w creams Shea butter (Butyrospermum parkii) vehicle, o/w emulsions Shea butter (Butyrospermum parkii) vehicle, offset lithographic inks metal decorating... 

Letterpress inks are very similar to offset lithographic inks. The composition of rotary letterpress black ink is detailed in Table 8.4. 

Figure 19. Rheological properties of a commercial lithographic offset news ink (viscosity ij, dynamic viscosity i, and elastic storage modulus G ) as measured in a plate fixtures with a cone angle of 2°20 (22).

As detailed earlier, offset lithographic printing operates on the principle that oil and water do not mix. With paper-based materials, conventional inks usually dry by oxidation and absorption. Early screen inks were also based on oil, drying by oxidation. These were used to achieve a thick film of 20-30 Pm. Thinner inks were obtained by the use of non-nitrated cellulose derivatives, modified resins and white spirit. Ultra-thin film inks were subsequently introduced which gave films between 5 and 10 Pm, thereby enabling the use of half-tone images. 

Uses Urethane-aciylic for graphics arts, lithographic inks, diy offset inks, screen inks, PVC flooring, flexible varnishes Features Trifunctional exhibits exc. pigment wetting, transference produces films with good cure speed, flexibility, adhesion, and film hardness... 

Uses Urethane-acrylic for lithographic/offset/screen inks, wood/paper coatings, electronics, photopolymers, elastomers, adhesives Features Offers flexibility, water resist., chem. resist., adhesion, heat resist., abrasion resist., impact str. 

Chem. Descrip. Aromatic urethane acrylate with SR-351 Uses Urethane-aciylic for inks (screen, offset, lithographic), electronics, and wood, metal, and plastic coatings Features Hydrophobic good pigment wetting Properties APHA 100 color vise. 1200 cps (60 C)... 

Uses Provides better coating coverage, improved wetting and dilution stability in printing industry when used in heat-set, offset lithographic printing processes as a topcoat on printed paper provides antistatic props. eliminates excessive ink buildup Features Usually diluted 40 1 with water exc. dilution stability good freeze-thaw stability... 

Cordeiro N., Blayo A., Belgacem N.M., Gandini A., Neto C.R, LeNest J.F., Cork suberin as an additive in offset lithographic printing inks, Ind. Crops Prod., 11(1), 2000, 63-71. 

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