TREATING AGENT FOR PROTEOLYSIS TREATMENT FOR NATURAL RUBBER LATEX

摘要

PROBLEM TO BE SOLVED: To provide a treating agent for proteolysis treatment that can subject a natural rubber latex to a high level of proteolysis treatment and can impart to the proteolyzed natural rubber latex or the deproteinized natural rubber latex produced by the treatment sufficient coagulation properties and good film-forming properties without causing thickness unevenness and runs in an anode coagulant dipping method. SOLUTION: The treating agent for proteolysis treatment comprises a protease and two or more surfactants different from each other in flocculation properties in response to a calcium ion (Ca<2+> ), wherein two or more surfactants are stably dispersed in an aqueous solution containing the surfactants (25 deg.C) in the case where the Ca<2+> concentration of the aqueous solution is not more than 0.1 mol/L and flocculate in the case where the Ca<2+> concentration of the aqueous solution is not less than 1.0 mol/L.