1,Gum rosin use in ink, adhesive, paint, food and rubber industry 2,gum rosin name colophony 3,ISO9001:2008 CERTIFICATE ... is used for the manufacturing of paper, paint, soap and printing ink. Since rosin is easily softened and oxidized, in the ... resinate for further use. While in the producing of synthetic rubber and printing ink, resin acid is changed into disproportionate rosin, polymerized ...