| abstract |
(57) [Summary] [Problem] To provide a spray fiber treatment agent capable of maintaining a shaping effect of maintaining good comfort without impairing the texture of clothing even in a humid state under high humidity. I do. SOLUTION: The weight average molecular weight is 10,000 to 1,000,000, and the structural unit derived from methacrylic acid is 60 mol% of all the structural units. The methacrylic acid-based polymer (I) occupying the above, and the sulfonic acid-based polymer (II) in which the weight average molecular weight is 10,000 to 1,000,000 and the structural unit having a sulfonic acid group accounts for 60 mol% or more of all the structural units (II) ) At a specific ratio. |