| 摘要 |
The invention relates to a transfer metallization primer comprising 1) 60-80wt% of polyurethane dispersion based on the weight of the transfer metallization primer; 2) 20-40wt% of self crosslinkable styrene acrylic emulsion based on the weight of the transfer metallization primer; wherein the polyurethane dispersion has Tg of -50°C to -30°C and the self crosslinkable styrene acrylic emulsion has Tg of 30°C to 70°C. The invention also relates to another transfer metallization primer comprising a colloidal acrylic emulsion, wherein the colloidal acrylic emulsion has acid value of 60 to 250 mg KOH/g, weight average molecular weight of 5,500 to 100,000 daltons, and Tg of 20 to 140°C. In addition, the invention relates to use of the transfer metallization primers for paper packaging materials of cigarette, liquor, food, cosmetic, etc. |
