| 摘要 |
PROBLEM TO BE SOLVED: To provide a dampening water composition for a lithographic printing plate which can be used in place of isopropyl alcohol, is convenient and safe in terms of a work environment, is low in dynamic surface tension, exhibits good, stable printing aptitude even under the conditions of a member rotating at a high speed, exhibits printing aptitude for various printing machines, can obtain a good print, and can be used stably for a long period. SOLUTION: The dampening water composition contains at least 1.0 mass% of at least one compound expressed by formula (I) of R<1> O-[-CH2 CH(CH3 )-O-]m -H (I) (R<1> is a 3-8C alkyl group; m is an integer of 1-3) and/or 2-ethyl-1,3-hexanediol and 0.015 mass% or below of an organic acid and/or an organic acid salt.
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