A leuco polymer comprising a polyethylenimine and at least one leuco moiety covalently bound to the polyethylenimine, wherein the polyethylenimine comprises three or more amine nitrogen atoms and 1 mol. % or more of amine hydrogen atoms in the polyethylenimine are replaced with a moiety selected from the group consisting of 2-hydroxypropyl, 1-hydroxypropane-2-yl, and polyalkoxy groups. Methods of making the leuco polymer, laundry care compositions comprising the leuco polymer and methods of treating textiles with such laundry care compositions.

The present invention relates to a process wherein one or more dye precursors, e.g., indole, are provided to a textile and converted by one or more enzymes, e.g., an oxidizing enzyme, to provide the textile with a dye, e.g. indigo. At least the oxidizing enzyme is a hybrid enzyme including a binding domain that is suitable to bind the enzyme to the textile and/or increase the affinity of the enzyme for the textile, in particular, a cellulose binding domain (CBD).

A laundry care composition including: (a) at least one laundry care ingredient and (b) a leuco composition. The laundry care composition has a HA of at least 10 and produces a relative hue angle on fabric outside the range of 210 to 345. Methods of treating textiles with such laundry care compositions.

Derivatized malachite green leuco dyes for use in radio-chromic systems are described. The dyes have the following structure:

##STR00001##

in which Ar is a substituted phenyl or thiophene ring in which at least one substitution of the Ar ring is not ortho to the bond between the ring and the linking carbon, and in which R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are independently selected from methyl, alkyl, or alkyl halide. The systems include the dyes in conjunction with an activator, e.g., a halogenated activator, and a carrier, e.g., a fluid carrier or an encapsulating polymeric matrix.

A method for preparing microparticles and solid microcapsules by adding, with stirring, a composition C2 in a composition C3, the compositions C2 and C3 not being miscible with each other, the composition C2 being either a cross-linkable monophasic composition C2 or an emulsion (E1) having drops of a composition C1, having at least one active ingredient, dispersed in a crosslinkable polymeric composition C2, the compositions C1 and C2 not being miscible in each other, the viscosity of composition C3 being greater than 10,000 mP.Math.s at 25 C. at a shear rate of 10 s.sup.1 and being less than 10,000 mP.Math.s at 25 C. at a shear rate of between 100 s.sup.1 and 100,000 s.sup.1, to obtain an emulsion (E2), applying shear to the emulsion (E2), the applied shear rate being less than 1000 s.sup.1, to obtain an emulsion (E3), and polymerizing the composition C2.

The present invention relates to a process wherein one or more dye precursors, e.g., indole, are provided to a textile and converted by one or more enzymes, e.g., an oxidizing enzyme, to provide the textile with a dye, e.g. indigo. At least the oxidizing enzyme is a hybrid enzyme including a binding domain that is suitable to bind the enzyme to the textile and/or increase the affinity of the enzyme for the textile, in particular, a cellulose binding domain (CBD).

A laundry care composition including: (a) at least one laundry care ingredient and (b) a leuco composition. The laundry care composition has a HA of at least 10 and produces a relative hue angle on fabric outside the range of 210 to 345. Methods of treating textiles with such laundry care compositions.

A leuco polymer comprising a polyethylenimine and at least one leuco moiety covalently bound to the polyethylenimine, wherein the polyethylenimine comprises three or more amine nitrogen atoms and 1 mol. % or more of amine hydrogen atoms in the polyethylenimine are replaced with a moiety selected from the group consisting of 2-hydroxypropyl, 1-hydroxypropane-2-yl, and polyalkoxy groups. Methods of making the leuco polymer, laundry care compositions comprising the leuco polymer and methods of treating textiles with such laundry care compositions.

A leuco composition comprises at least one reactive leuco compound, which reactive leuco compound comprises a leuco moiety and at least one reactive moiety covalently bound to the leuco moiety. A laundry care composition comprises a laundry care ingredient and a leuco composition. A method of treating a textile comprises the steps of (i) treating a textile with an aqueous solution containing a leuco composition, (ii) optionally, rinsing the textile, and (iii) drying the textile.

This invention relates to a process and apparatus for dyeing of textiles, to an immobilized enzyme comprised in said apparatus required for carrying out the process, and to a method to produce enzymatically indigo and derivatives thereof.