Antifoggant composition and anti-fog article having antifogging film formed from said composition

An antifoggant composition, comprising:

• a copolymer (A);
• a blocked polyisocyanate curing agent (B);
• a colloidal silica (C);
• a surfactant (D);
• and
• water (E),
• wherein the copolymer (A) is a (meth)acrylate copolymer obtained from a monomer mixture containing
• an N,N-dialkyl (meth)acrylamide monomer (a-1) represented by General Formula (1):
• (wherein R1 is a hydrogen atom or a methyl group, and R2 and R3 are independently a linear or branched alkyl group having 1 to 8 carbon atoms);
• an ε-caprolactone-added hydroxyalkyl (meth)acrylate monomer (a-2) represented by General Formula (2):
• (wherein R4 is a hydrogen atom or a methyl group, and n is an integer of 1 to 10);
• and
• a (meth)acrylate monomer (a-3) having a hydrocarbon group represented by General Formula (3):
• (wherein R5 is a hydrogen atom or a methyl group, and R6 is a linear, branched, or cyclic hydrocarbon group having 1 to 22 carbon atoms),
• and an amount of the blocked polyisocyanate curing agent (B) is 35 to 300 parts by mass, an amount of the colloidal silica (C) is 80 parts by mass or more and 600 parts by mass or less, and an amount of the water (E) is 650 parts by mass or more relative to 100 parts by mass of the copolymer (A).