METHOD FOR THE PRODUCTION OF A DIGITAL COLOUR CATALOGUE

Title:

METHOD FOR THE PRODUCTION OF A DIGITAL COLOUR CATALOGUE

Document Type and Number:

WIPO Patent Application WO/2004/046670

Kind Code:

A1

Abstract:

A method for the production of a digital colour catalogue, which comprises a) drawing up a requirement profile for the desired dyeing, b) selecting a group of dyes that meet the requirement profile that has been drawn up, c) determining within the colour space the colour position of the said dyes for the desired dyeing, d) segmenting the colour space of the dyes within a depth of shade plane into triangular areas according to shade, wherein the corner points of the triangular areas correspond to the colour position of the dyes in question, and the said dyes define a range of shades delimited by the triangular areas, e) dividing the triangular areas within a depth of shade plane arithmetically into a grid in such a manner that the points of intersection of the grid are distributed evenly over the triangular areas, where the points of intersection of the grid correspond to a colour position and a reflectance curve calculated on the basis of a dye recipe is associated with each of those colour positions, and f) if desired visualising the reflectance curves associated with the colour positions by means of a suitable medium, is suitable for providing a comprehensive catalogue of different shades together with the associated dye recipes.

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Inventors:

MAEGLI-SCHMITZ INGRID (CH)
KLUMB HARALD (DE)

Application Number:

PCT/EP2003/012386

Publication Date:

June 03, 2004

Filing Date:

November 06, 2003

Export Citation:

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Assignee:

CIBA SC HOLDING AG (CH)
MAEGLI-SCHMITZ INGRID (CH)
KLUMB HARALD (DE)

International Classes:

G01J3/46; G01J3/52; (IPC1-7): G01J3/52; G01J3/46

Foreign References:

EP0527108A2	1993-02-10
EP0446168A1	1991-09-11
FR2819887A1	2002-07-26
GB2361158A	2001-10-10
US5680327A	1997-10-21

Attorney, Agent or Firm:

CIBA SPECIALTY CHEMICALS HOLDING INC. (Klybeckstrasse 141, Basel, CH)

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