Esterquat is a cationic surfactant based on fatty acid esters of quaternary ammonium compounds. It is the main active ingredient in modern fabric softeners and is more biodegradable than older quats.
- Fabric Softeners: Softening agent in household and industrial softeners.
- Personal Care: Conditioning agent in hair conditioners.
- Textile Industry: Softener in finishing.
- Paper Industry: Debonding and softening agent for tissue.