METHODS OF USING LEUCO COLORANTS AS BLUING AGENTS IN LAUNDRY CARE COMPOSITIONS

A method for pre-treating textile articles includes the steps of: (a) providing a laundry care composition comprising a laundry care ingredient and a leuco composition comprising at least 0.001 wt % leuco colorant, based on the weight of the laundry care composition; (b) placing the laundry care com...

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Bibliographische Detailangaben
Hauptverfasser: MIRACLE, Gregory Scot, DITULLIO, JR., Daniel Dale, BALASCA, Diana C, DEY, Sanjeev Kumar, FREUND, Wesley A
Format: Patent
Sprache:eng
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Zusammenfassung:A method for pre-treating textile articles includes the steps of: (a) providing a laundry care composition comprising a laundry care ingredient and a leuco composition comprising at least 0.001 wt % leuco colorant, based on the weight of the laundry care composition; (b) placing the laundry care composition in contact with a stain on the textile article in a pretreat step; (c) placing the textile articles in contact with a liquid medium optionally further comprising a converting agent; (d) optionally converting at least some portion of the leuco composition to form an oxidized leuco composition; (e) depositing at least a portion of the leuco composition and/or the oxidized leuco composition onto the textile; (f) optionally, rinsing the textile; and (g) drying the textile articles.