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1. (WO2007082376) METHOD FOR MEASURING HYDROPHOBIC CONTAMINANTS IN PAPER PULP
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2007/082376 International Application No.: PCT/CA2007/000070
Publication Date: 26.07.2007 International Filing Date: 18.01.2007
IPC:
G01N 21/64 (2006.01) ,G01N 21/91 (2006.01) ,G01N 21/85 (2006.01) ,G01N 33/34 (2006.01)
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21
Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible, or ultra-violet light
62
Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
63
optically excited
64
Fluorescence; Phosphorescence
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21
Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible, or ultra-violet light
84
Systems specially adapted for particular applications
88
Investigating the presence of flaws, defects or contamination
91
using penetration of dyes, e.g. fluorescent ink
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21
Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible, or ultra-violet light
84
Systems specially adapted for particular applications
85
Investigating moving fluids or granular solids
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
33
Investigating or analysing materials by specific methods not covered by groups G01N1/-G01N31/131
34
Paper
Applicants: DI CESARE, Nicolas[CA/CA]; CA (UsOnly)
CASCADES CANADA INC.[CA/CA]; 471 Boul. Marie Victorin Kingsey Falls, Québec J1A 1B0, CA (AllExceptUS)
Inventors: DI CESARE, Nicolas; CA
Agent: OGILVY RENAULT LLP/S.E.N.C.R.L., s.r.l.; Suite 1600 1981 Mcgill College Avenue Montreal, Québec H3A 2Y3, CA
Priority Data:
60/759,58618.01.2006US
Title (EN) METHOD FOR MEASURING HYDROPHOBIC CONTAMINANTS IN PAPER PULP
(FR) PROCÉDÉ POUR MESURER DES CONTAMINANTS HYDROPHOBES DANS LA PÂTE À PAPIER
Abstract:
(EN) A method is provided for measuring hydrophobic contaminants distributed in paper pulp suspension. The method comprises: adding a fluorescent dye (18) to the paper pulp suspension (12) including fibers and hydrophobic contaminants, the dye (18) interacting with the hydrophobic contaminants of the paper pulp suspension (12); submitting the paper pulp suspension (12) including the fibers, the hydrophobic contaminants, and the dye (18) to light characterized by a wavelength exciting the dye (18) to produce light emission signals; and detecting the light emission signals and evaluating the signals to measure the hydrophobic contaminants.
(FR) La présente invention concerne un procédé pour mesurer les contaminants hydrophobes distribués dans une suspension de pâte à papier. Le procédé consiste : à ajouter un colorant fluorescent (18) à la suspension de pâte à papier (12) comprenant des fibres et des contaminants hydrophobes, le colorant (18) interagissant avec les contaminants hydrophobes de la suspension de pâte à papier (12) ; à soumettre la suspension de pâte à papier (12) comprenant les fibres, les contaminants hydrophobes, et le colorant (18) à une lumière caractérisée par une longueur d’onde excitant le colorant (18) pour produire des signaux d'émission lumineuse ; et à détecter les signaux d’émission lumineuse et à évaluer les signaux pour mesurer les contaminants hydrophobes.
front page image
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)