Photosensitive composition, photosensitive planographic printing plate material, and recording method of planographic printing plate material

A photosensitive composition comprising:

• (A) an addition-polymerizable ethylenic double bond-containing compound that is represented by the following Formula (1);
• (B) a biimidazole compound that acts as a photopolymerization initiator;
• (C) a polymer binder;
• and
• (D) a dye exhibiting an absorption maximum wavelength of 350-450 nm.
• R(m-n)Q[(CH2C(R1)(R2)O)aCONH(X1NHCOO)bX2(OOCC(R3)═CH2)C]n Formula (1)
• where R represents an alkyl group, a hydroxyalkyl group or an aryl group;
• R1 and R2 each represent a hydrogen atom, an alkyl group or an alkoxyalkyl group;
• R3 represents a hydrogen atom, a methyl group or an ethyl group;
• X1 represents an aromatic hydrocarbon group having 6-24 carbon atoms or an alkyl group containing an aromatic hydrocarbon group having 6-24 carbon atoms;
• X2 represents a saturated hydrocarbon group having 2-8 carbon atoms;
• Q represents
• ;
• D1 and D2 represent a saturated hydrocarbon group having 1-12 carbon atoms;
• D3 represents a saturated hydrocarbon group having 4-8 carbon atoms that forms a 5- to 6-member ring with a nitrogen atom;
• E represents a saturated hydrocarbon group having 1-12 carbon atoms;
• Z represents a hydrogen atom, a saturated hydrocarbon group having 1-3 carbon atoms or a —CkH2kO—CONH(X1—NHCOO)b—X2(—OOC—C(R3)═CH2) group;
• a is an integer of 0-4;
• b is 0 or 1;
• k is an integer of 1-12;
• m is 2, 3 or 4;
• n is an integer of 1-m;
• and c is 1 or 2.