TY - PAT
T1 - [EN] COLOURANT COMPOSITIONS AND THEIR USE ;
AU - FRANCIS, BUTLER MICHAEL
AU - RAMIM, DJALALI
AU - RAMIN, DJALALI
AU - MICHAEL, FRANCIS BUTLER
AU - KRASSIMIR, PETKOV VELIKOV
AU - DJALALI, RAMIN
AU - P, VELIKOV KRASSIMIR
AU - PETKOV, VELIKOV KRASSIMIR
AU - PETROV, VELIKOV KRASSIMIR
AU - LTD, LEVER HINDUSTAN
AU - NV, UNILEVER
AU - PLC, UNILEVER
N1 - Claims(US2009047352AA): [EN] 1. A method of colouring a substrate selected from hair of an individual and fabric fibres, which method comprises contacting the substrate with a composition comprising monodisperse spherical particles capable of forming a colloidal crystal that diffracts light having a wavelength in a range that corresponds to the wavelength of visible light, such that colloidal crystals comprising the monodisperse particles form on the substrate; wherein the colloidal crystal has a lattice spacing in a range that corresponds to the wavelength of visible light. 2. A method according to claim 1, wherein the substrate is the hair of an individual and at least a region of the hair is contacted with the composition such that the monodisperse particle form on at least a portion of the hair. 3. A method of printing onto a substrate which method comprises contacting at least a region of the substrate with an ink composition comprising monodisperse spherical particles capable of forming a colloidal crystal having a lattice spacing in a range that corresponds to the wavelength of visible light, such that colloidal crystals comprising the monodisperse particles form on at least a portion of the substrate; wherein the colloidal crystal has a lattice spacing in a range that corresponds to the wavelength of visible light. 4. (canceled) 5. (canceled) 6. (canceled) 7. (canceled) 8. A method according to any claims 1 or 3, wherein the colloidal crystals have a lattice spacing in at least one axis of about 380 nm to about 770 nm. 9. A method according to claim 1 or 3, wherein the monodisperse particles deviate less than 10 percent in rms diameter. 10. A method according to claim 1 or 3, wherein the monodisperse particles have an rms diameter of about 200 nm to about 500 nm. 11. A method according to claim 1 or 3, wherein the monodisperse particles are formed from one or more materials selected from organic and inorganic materials, selected from latex, acrylic, polystyrene, poly(vinyl acetate), polyacrylonitrile, poly(styrene-co-butadiene), polyester, polyamides, polyurethane, poly(methylmethacrylate) and poly(fluoromethylmethacrylate), metal chalcogenide, metal pnictide, silica, metal and metal oxide particles. for example of Al<sub>2</sub>O<sub>3</sub>, TiO<sub>2</sub>, SnO<sub>2</sub>, Sb<sub>2</sub>O<sub>5</sub>, Fe<sub>2</sub>O<sub>3</sub>, ZrO<sub>2</sub>, CeO<sub>2 </sub>and Y<sub>2</sub>O<sub>3</sub>, gold, copper and silver, and mixtures of any one or more of any of the foregoing. 12. (canceled) 13. (canceled) 14. (canceled) 15. A fibrous material comprising at least one colloidal crystalline layer comprising monodisperse particles, which layer diffracts light having a wavelength in a range that corresponds to the wavelength of visible light. 16. A fibrous material according to claim 15, which is a fabric. 17. (canceled) 18. A fibre colourant or ink composition comprising monodisperse particles capable of forming a colloidal crystal that diffracts light having a wavelength in a range that corresponds to the wavelength of visible light. 19. (canceled)
M1 - A61K;A61K8/02;A61K8/19;A61K8/25;A61Q;A61Q5/10;C09D;C09D11/00;C11D11/00;D06M;D06M11/00;
PY - 2009
Y1 - 2009
N2 - Source: US2009047352 AA [EN] A fibre colourant and an ink composition are provided which comprise monodisperse particles capable of forming a colloidal crystal that diffracts light having a wavelength in a range that corresponds to the wavelength of visible light. The use of such compositions in colouring substrates is also provided. ;
AB - Source: US2009047352 AA [EN] A fibre colourant and an ink composition are provided which comprise monodisperse particles capable of forming a colloidal crystal that diffracts light having a wavelength in a range that corresponds to the wavelength of visible light. The use of such compositions in colouring substrates is also provided. ;
M3 - Patent
ER -
