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1. (WO2007010325) DETECTING FOREIGN SUBSTANCES IN A TEXTILE MATERIAL
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2007/010325 International Application No.: PCT/IB2005/003167
Publication Date: 25.01.2007 International Filing Date: 13.10.2005
Chapter 2 Demand Filed: 21.07.2006
IPC:
G01N 21/89 (2006.01) ,D01H 13/22 (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
84
Systems specially adapted for particular applications
88
Investigating the presence of flaws, defects or contamination
89
in moving material, e.g. paper, textiles
D TEXTILES; PAPER
01
NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING
H
SPINNING OR TWISTING
13
Other common constructional features, details, or accessories
14
Warning or safety devices, e.g. automatic fault detectors, stop motions
22
responsive to presence of irregularities in running material
Applicants:
PREMIER EVOLVICS PVT. LTD. [IN/IN]; 304, Trichy Road Coimbatore 641 005, IN (AllExceptUS)
RAMACHANDRAN, Shekaripuram, Narayanaswamy [IN/IN]; IN (UsOnly)
KAVITHA, Narayanaswamy [IN/IN]; IN (UsOnly)
SUNDARAM, Balasubramaniam, Shamuga [IN/IN]; IN (UsOnly)
Inventors:
RAMACHANDRAN, Shekaripuram, Narayanaswamy; IN
KAVITHA, Narayanaswamy; IN
SUNDARAM, Balasubramaniam, Shamuga; IN
Agent:
FREI PATENTANWALTSBÜRO; Postfach 1771 CH-8032 Zürich, CH
Priority Data:
0980/CHE/200522.07.2005IN
Title (EN) DETECTING FOREIGN SUBSTANCES IN A TEXTILE MATERIAL
(FR) DÉTECTION DE SUBSTANCES ÉTRANGÈRES AU SEIN D’UN MATÉRIAU TEXTILE
Abstract:
(EN) An apparatus for detecting foreign substances in a strand-like textile material comprises a first light source (2) for emitting visible light, a second (3) light source for emitting radiation in the infrared spectrum, a first detector (4) sensitive to visible light reflected from a the textile material (1, 11) and configured to generate a corresponding first detector signal, and a second detector (5) sensitive to radiation in the near-visible spectrum reflected from the textile material (1, 11) and configured to generate a corresponding second detector signal. The light sources (2, 3) and detectors (4, 5) are arranged to illuminate and view the same section of the yam (1), and a signal processing section (7) is configured to determine the ratio and a weighted difference of the two detector signals and to output a signal indicative of the presence of a contaminant whenever said difference exceeds a threshold value.
(FR) La présente invention concerne un appareil de détection de substances étrangères au sein d’un matériau textile de type brin comprenant une première source lumineuse (2) émettant une lumière visible, une seconde source lumineuse (3) émettant un rayonnement dans le spectre infrarouge, un premier détecteur (4) sensible à la lumière visible réfléchie depuis un matériau textile (1, 11) et conçu pour émettre un premier signal de détection correspondant, et un second détecteur (5) sensible au rayonnement dans le spectre quasi visible réfléchi depuis un matériau textile (1, 11) et conçu pour émettre un second signal de détection correspondant. Les sources lumineuses (2, 3) et les détecteurs (4, 5) sont agencés pour éclairer et observer la même zone du fil (1), et une unité de traitement de signal (7) est configurée pour déterminer le rapport et une différence pondérée des deux signaux de détection et produire un signal indiquant la présence d’une impureté dès lors que ladite différence dépasse une valeur limite.
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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, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, 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 Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (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)
Also published as:
EP1907830JP2009503276CN101228434