ACRYLIC-BASED RESIN EMULSION FOR HAIRDRESSING AGENTS AND HAIRDRESSING AGENT CONTAINING THE SAME, AND HAIRDRESSING METHOD

摘要

PROBLEM TO BE SOLVED: To provide an acrylic-based resin emulsion suitable for obtaining an excellent hairdressing agent with a good balance between a styling performance (hairdressing performance, re-hairdressing performance, tactile impression) and a cleaned performance.SOLUTION: The invention relates to an acrylic-based resin emulsion for hairdressing agents obtained by emulsion polymerization of a monomer composition [I] and a monomer composition [II]. The monomer composition [I] and the monomer composition [II] satisfy the following conditions (i)-(iii). (i) At least either one of the monomer composition [I] and the monomer composition [II] contains a (meth)acrylate based monomer. (ii) A glass transition temperature (Tg2) of the polymer polymerized using the monomer composition [II] calculated by the formula of Fox is 30°C higher than a glass transition temperature (Tg1) of the polymer polymerized using the monomer composition [I] calculated by the formula of Fox. (iii) The compounding ratio (weight ratio) of the monomer composition [I] and the monomer composition [II] is the monomer composition [I]:the monomer composition [II]=50:50-99:1.