| 摘要 |
<p>PURPOSE:To obtain printing ink having excellent boiling and retort treating resistance and printability, containing a urethane urea resin prepared by reacting a specific diol with a specific diisocyanate as vehicle solid. CONSTITUTION:The objective ink suitable as specific gravure ink containing a urethane urea prepared by reacting (A) a diol such as an adduct shown by the formula (R1 to R6 are H or methyl; k, l, m and n are 0-20 and total of k and 1 or total of m and n is >=1) of a bisphenol A and ethylene oxide with (B) a diisocyanate comprising 1,3-bis(alpha,alpha-dimethyl isocyanatomethyl)benzene as an essential component and (C) a chain extender such as ethylenediamine as a vehicle solid.</p> |
