Surface treatment composition

Abstract

To provide a surface treatment composition, a surface treatment method, a solid surface hydrophilizing method and a solid surface hydrophilization treatment kit which have a high hydrophilizing effect even when a treated solid surface is in a dried state when applied to a surface of a solid having low surface free energy.SOLUTION: There are provided [1] a surface treatment composition containing the following components (A) to (C), [2] a surface treatment method which includes a step of applying the surface treatment composition described in the [1] to a solid surface, [3] a solid surface hydrophilizing method which includes a step of applying the other of the component (A) and the component (B) to a solid surface to which either one of the following component (A) or component (B) is applied, and [4] a solid surface hydrophilization treatment kit which includes a composition I containing the following component (A) and a composition II containing the following component (B). (A) A polymer having only a betaine group as an ionic group. (B) A polymer including an ionic group other than the betaine group and a hydrophobic group and having the hydrophobic group in the side chain. (C) An electrolyte.SELECTED DRAWING: None

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