Premium rosin resin, rosin modified phenolic resin used in ink manufacture. - Tert-butyl-phenol with solid paraformaldehyde in the presence of an alkaline catalyst, condensation generated soluble phenolic resin, after the addition reaction with the rosin polyol esterification, after vacuum processing system the Debu rules reddish brown transparent solid resin. Soluble in ester, vegetable oil, turpentine and tar. In view of the good fat-soluble, high-viscosity, quick-drying and good water resistance, HAIZERK series particularly suitable for printing inks. F-2136 and F-2138, in particular has a higher viscosity and gloss, and can be used for a high level of web rotary offset and gravure inks. Performance characteristics: good good lipophilic solvent compatibility, high gloss, high hardness, good fast-drying water resistance of this product with an oil-soluble, and bright, fast drying, high hardness characteristics, a common solvent for esters, vegetable oils and turpentine, was completely dissolved in coal tar-based solvents; main feature is the oil viscosity of 1500-4500 (adjustable) mPa.s (-1:2 linoleoyl, 35 ° C). The range of applications is applied to the ink industry, has the FDA prepared the ink is fast drying, high brightness characteristics, an ideal material for preparation of advanced offset printing ink.