| 摘要 |
<p>An aqueous-alcoholic, foam-growth-controlling printing ink composition having a pH in the range of from about 8 to about 12 of use in the chemical embossing of heat-foamable and expandable resinous materials comprising: (1) from about 1% to about 15% of a foam-growth-controlling chemical agent, such as benzotriazole; (2) from about 1% to about 9% of a water-soluble or water-dispersible alcohol having from 1 to 6 carbon atoms, such as isopropanol; (3) from about 1% to about 11% of a pH controlling or buffering agent, such as ammonia or a water-soluble or water-dispersible alkylaminoalcohol having from 2 to 10 carbon atoms, such as 2-dimethylaminoalcohol, capable of creating or maintaining the pH of the aqueous-alcoholic, foam-growth-controlling printing ink composition in the range of from about 8 to about 12; (4) from about 30% to about 75% of an aqueous printing ink composition; and (5) from about 10% to about 40% of added water, all these percentages being by weight. Processes of applying such aqueous-alcoholic, foam-growth-controlling printing ink compositions to such heat-foamable and expandable resinous materials are also included.</p> |
