PROCESS FOR DETERMINING THE DYE UPTAKE OF POLYETHYLENE TEREPHTHALATE FIBRES
Application IN/PCT/2001/1050/CHE published 2007-08-24, filed 2001-07-25
The invention pertains to a process for determining the dye uptake of polyethylene terephthalate fibres in which the fibres are irradiated with high-intensity monochromatic light. A light-sensitive sensor is used to measure the Raman scattering and compare it with that of an earlier established model on the basis of Raman spectra of polyethylene terephthalate fibres of known composition and structure. A model is used to calculate the density, which constitutes a quantitative measure of the dye uptake. In the calculation use is made of measurement points from a number of regions in the spectral measuring region of 598 to 1900 CM-1
Applicant
1)ACORDIS INDUSTRIAL FIBERS GMBH
:Kasinostrasse 19-21 42103 Wuppertal. Germany
Inventor
1)DE WEIJER, Anton, Peter 2)VAN WIJK, Robert, Jan 3)SWIERINGA, Erik
International Info
Classification: G01N 21/65
Publication Number: WO/2000/047980
Application Date: 2000-01-26
Priority Information
1011249 Netherlands 1999-02-09