A novel softener comprises (A) linear alkyl quaternary ammonium salt and (B) methyl-branched alkyl quaternary ammonium salt, the ratio of (A) to (B) being 70/30 to 10/90 by weight.
The softener imparts softness, antistatic property and water absorbency to a variety of fibers.
A method for enhancing the effectiveness of an agricultural chemical which comprises incorporating a specific enhancer into a diluted solution of the agricultural chemical.
The specific enhancer is a quaternary ammonium salt or a tertiary amine or a salt thereof containing one or more carboxylic acid ester or amide groups, at least one long chain alkyl or alkenyl group and optionally also ether groups.