| 摘要 |
PROBLEM TO BE SOLVED: To provide a printing sheet constituted so as to eliminate the adverse effect on global environment or a human body caused by a volatile organic compound(VOC) causing the formation of smog or an ozone hole caused by a petroleum solvent in printing ink to generate a greenhous phenomenon. SOLUTION: A sheet 1 for a three-folded post card being the printing sheet has items, which must be preliminarily printed on the three-folded post card 1, such as a post card mark 13, a postal code entry column 14, a use specifics entry column 15, a title 16 or the like printed thereon by soybean oil ink containing no petroleum solvent and excellent in heat resistance and abrasion resistance.
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