A solid free-flowing particulate laundry detergent composition

The integration of iron-based bleach catalysts with sulfite-based bleaches in a laundry detergent composition addresses compatibility issues, resulting in superior stain removal and improved consumer perception of cleaning performance.

EP4299701B1Active Publication Date: 2025-03-26PROCTER & GAMBLE CO
27 Cites -1 Cited by

Patent Information

Application Number
EP2022181238
Authority / Receiving Office
EP · EP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2022-06-27
Publication Date
2025-03-26
Estimated Expiration
2042-06-27

AI Technical Summary

Technical Problem

Laundry detergent powders face challenges in achieving compatibility between sulfite-based bleaches and other bleach systems, limiting their effectiveness in removing tough stains like curry and ink stains, which affects consumer perception of cleaning performance.

Method used

The combination of iron-based bleach catalysts, such as FeONIX and FeONIX-A, with sulfite-based reducing bleach in a solid free-flowing particulate detergent composition, which surprisingly shows compatibility and enhanced stain removal performance against curry and ink stains.

Benefits of technology

This combination provides exceptional stain removal performance for both curry and ink stains, effectively driving consumer acceptance of the detergent's overall cleaning performance by ensuring good stain removal capabilities.

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Abstract

The present invention relates to a solid free-flowing particulate laundry detergent composition, wherein the composition comprising a detersive surfactant, an iron-based bleach catalyst and a sulfite-based reducing bleach.
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Citation Information

Patent Citations

  • Alkaline proteolytic enzyme and method of production

    US5352604A

  • A composition for use in the laundering or treatment of fabrics

    WO2005075616A1

  • Alpha-amylase variants with altered properties

    WO2006002643A2

  • Detergent compositions

    WO2006090335A1

  • Detergent compositions

    WO2007144857A1