| 摘要 |
<p>PURPOSE:To prepare the title sheet with a indented non-printed part and a raised printed part by heaging a continuous foam vinyl chloride sheet printed with ink containing a briding agent up to above the softening point after being dried. CONSTITUTION:Vinylchlorideresin compound is processed into a foam sheet of continuous from structure having gas permeability and moisture permeability. Next, simultaneously with performing pattern printing on said foam sheet with printing ink (e.g. water coloring ink) containing a bridge formation compound, said printing ink is made to impregnate said sheet. Thereafter, after drying said printed sheet, the same is heated up to above the softening point and the continuous foam structure of the part not containing a bridge formation compound is destroyed to provide a hollow. Also, as occation demands, the part of continuous foam structure is impregnated and filled up with vinyl chloride paste, said paste being strengthened by gelation. As said bridge formation hardening compound, peroxide bridge formation hardening compound (diallyl fumarate), photopolymerization bridge formation hardening compound (e.g. hexamethylenediamine adipic acid salt) and the like are applied.</p> |
