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Cheaper, more sustainable method for preventing colors from adhering to PQs during washing of the underlying fibers/fabrics. multiple seeking neutralize block inhibit reaction polyquaternium compounds (PQs) color bodies aqueous environments effect noted various conditions temperature water anywhere 5C 95C ration textile 110 13 pH say limits extreme known benefits nice feel cost personal care products directly applied fibers fabrics staining colors contact effectively suck grass stains inorganic particulate soils (clay) even fugitive dyes adhering acute cotton solutions prevent interest current blocking approach sulfonated styrene malaic anhydride (SSMA) concentration contacting BackgroundWe believe cationic substituents problem Nonionic based detergents affected phenomenon anionic surfactant levels similar behavior lesser degree Note [PQ7] common hand soaps unaffected type Neutralizing positive charges seems help inhibiting Solutions Remove quats fibers- cheaper alternative contacting/adhering accomplished either targeting generically infusing whole blocker/inhibitor (as currently done)- Reduce amount (current concentrations efficacy nonionic 60 ppm system- Target (have there) (much higher required) Constraints Needs human-safe (GRAS)- Preferably biodegradable- Definitely needs meet Environment (EPA) criteria |
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