Patent No. EP4301834 (titled "Use Of Enzymes For Improving Fragrance Deposition") was filed by Givaudan on Feb 25, 2022. The application was issued on Jun 18, 2025.
The invention provides the use of a cellulase enzyme, specifically family GH45 cellulases, in consumer product compositions—particularly fabric conditioners and scent boosters—to improve fragrance deposition onto textiles. In fabric conditioners, the enzyme enables a reduction in cationic surfactant levels without compromising conditioning or anti-static performance, while simultaneously improving anti-pilling properties and sustainability by replacing petrochemical-derived surfactants with biodegradable, renewable enzymes. The composition typically comprises a cationic surfactant, fragrance, and 0.5 wt% to 25 wt% cellulase (based on dry matter weight). To ensure enduring perfume impact and tenacity through drying and storage, the fragrance preferably contains over 25 wt% of ingredients with a CLogP between 2.5 and 7.

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