[go: up one dir, main page]

WO1991018141A1 - Procede et appareil de teinture par tuyeres - Google Patents

Procede et appareil de teinture par tuyeres Download PDF

Info

Publication number
WO1991018141A1
WO1991018141A1 PCT/EP1991/000896 EP9100896W WO9118141A1 WO 1991018141 A1 WO1991018141 A1 WO 1991018141A1 EP 9100896 W EP9100896 W EP 9100896W WO 9118141 A1 WO9118141 A1 WO 9118141A1
Authority
WO
WIPO (PCT)
Prior art keywords
fabric
transport tube
transport
liquor
jet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP1991/000896
Other languages
English (en)
Inventor
Aristides Georgantas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sclayos S SA
Original Assignee
Sclayos S SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10940141&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO1991018141(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Sclayos S SA filed Critical Sclayos S SA
Priority to DE69121514T priority Critical patent/DE69121514T3/de
Priority to EP91909184A priority patent/EP0482166B2/fr
Priority to US07/793,403 priority patent/US5299339A/en
Publication of WO1991018141A1 publication Critical patent/WO1991018141A1/fr
Anticipated expiration legal-status Critical
Priority to HK93597A priority patent/HK93597A/en
Ceased legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
    • D06B3/28—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics propelled by, or with the aid of, jets of the treating material

Definitions

  • This invention relates to a jet dyeing apparatus for dyeing textile materials which is particularly desirable for use. in dyeing textile fabrics in rope fora.
  • the fabric to be treated is continuously circulated through a treatment zone or transport tube in which dye liquor is applied to the fabric under pressure.
  • pressurized liquor serves a dual function, namely to dye the fabric as well as to impart movement to the fabric rope which is conveyed from the transport tube into a fabric storage chamber.
  • the fabric Within the storage chamber, the fabric is submerged in excess dye liquor and moves through this chamber suspended in the liquor until it is removed from the opposite end for
  • pressurized dye liquor is applied to the fabric in the fabric transport tube.
  • the tube typically includes at least, one peripheral liquor sprayer or "P.L.S.” which is designed to apply the liquor under pressure to the fabric about its complete circumference. It is particularly preferred to apply the liquor under pressure to the fabric about its complete circumference. It is particularly preferred to apply the liquor under pressure to the fabric about its complete circumference. It is particularly preferred to apply the liquor under pressure to the fabric about its complete circumference. It is particularly
  • Ekstroem advocates the use of a perforated reqion in the undulated pipe for the purpose of
  • direction of travel of the fabric through the fabric transport tube and is also preferably oscillated in a longitudinal direction (using the hood 21 in Mezzera, for example) or by axial movements of the discharge nozzle in accordance with the embodiment shown in
  • the entire fabric transport tube including a fixed plaiting nozzle, may be oscillated in a direction transverse to the main path of travel of the fabric. While this approach forms generally transverse folds in the fabric, it substantially limits the production capacity of the apparatus and increases wear and tear on the entire assembly. Furthermore, the fabric is deposited in the fabric storage chamber in a generally arcuate pattern which is inherently unstable and which wastes the available capacity in the fabric storage chamber.
  • a jet dyeing apparatus which includes a housing having a liquid treatment chamber positioned in the lower portion of the housing which has an upwardly open inlet and an upwardly open outlet.
  • the apparatus also includes a fabric transport tube in the housing
  • liquid treatment chamber which comprises an elongate tubular member which defines a generally horizontal centerline which has an exit end for mounting a plaiting apparatus.
  • oscillating the plaiting member about the centerline are provided such that the downwardly directed nozzle reciprocates along a generally linear path of travel which is transverse to the centerline of the transport tube such that fabric passing through the tube is deposited in overlying relatively straight folds in the chamber to maximize capacity and improve the stability of the fabric entering the storage chamber.
  • increased capacity may be attained through the use of a fabric transport tube which includes a plurality of peripheral liquor sprayer systems or other jets which are fed with dyeing liquor from a common supply.
  • the highest fabric speeds may be achieved at the lowest possible water pressure.
  • the first peripheral liquor sprayer is preferably placed at the entry end of the fabric transport tube, i.e. the fabric inlet to the fabric transport tube, while a second peripheral liquor sprayer is preferably positioned just beyond the midpoint of the fabric transport tube.
  • the section of the fabric transport tube between the first peripheral liquor sprayer and the approXaimate midpoint of the transport tube defines a first tr-ansport zone which is preferably downwardly inclined at a mild angle while the section of the fabric transport tube after the midpoint and containing the second peripheral liquor sprayer, is generally upwardly inclined toward the plaiting nozzle to define a second transport zone.
  • the use of a plurality of peripheral liquor sprayers will increase the overall volume of liquor traveling through the fabric transport tube with the further result that greater volumes of excess liquor will be deposited by the outlet nozzle of the plaiter onto the orderly fabric pleats previously formed by the plaiting mechanism.
  • the invention may additionally include an excess liquor bypass which may be desirably formed integrally with the outlet nozzle of the plaiting mechanism. The excess liquor bypass is formed on the outer curve of the elbow defining the outlet nozzle and adjacent the defined path ⁇ f travel for the fabric.
  • the excess liquor will travel through a perforated plate in the outlet nozzle so that the liquor is diverted outside the main area of the liquid treatment chamber so that a relatively small percentage of dye liquor entering the liquid treatment chamber falls directly on the fabric which has been plaited.
  • the excess liquor may then travel through a distinct path of travel and may be in fluid communicating relation to the chamber through perforations or the like so that the liquor may then be recirculated to the header associated with the peripheral liquor sprayers.
  • the unique plaiting system as described herein deposits the fabric in the storage chamber in an orderly manner so that the full width of the chamber is utilized and so that each new plait of fabric is deposited in overlying relatively straight folds square to the centerline of the storage chamber. In this manner, the fabric remains relatively undisturbed until it reaches the front exit of the storage chamber and helps to ensure that entanglement of the stored fabric as it moves through the storage chamber will be
  • This invention also relates to the method of dyeing a length of textile, material as described herein which includes the steps of guiding a length of textile material through a generally horizontally directed transport tube while applying a jet of liquid dye onto the material in the tube to dye the fabric and advance it through the transport tube.
  • the textile material is then advanced downwardly from the exit end of the transport tube and reciprocated along a linear path of travel transverse to the direction of advance through the transport tube so as to form overlying relatively straight folds of the material in the transport
  • Figure 1 is a side schematic view showing the general arrangement of the fabric transport tube and particularly in relation to the j-box or liquid
  • FIG. 2 is a side perspective view which particularly depicts the fabric transport tube and the plaiting mechanism made in accordance with this
  • Figure 3 is a detailed side elevation view depicting the fabric transport tube and the plaiting mechanism including the outlet nozzle in detail in accordance with the present invention
  • Figure 4 is a front schematic taken
  • the jet dyeing apparatus comprises a housing H which includes a liquid treatment chamber or j-box 10 in the lower portion of the housing and a fabric transport tube 11 in the housing above the liquid treatment chamber.
  • the fabric 1 enters the fabric
  • the fabric enters the fabric transport tube 11 at a fabric inlet or entry end 16 and is immediately contacted with liquor from a jet apparatus or
  • peripheral liquor sprayer 3 which is supplied with liquor from a common supply or header 12.
  • peripheral liquor sprayer sprays liquor on the fabric in a manner which both dyes the fabric and which also serves to transport the fabric 1, which is typically in continuous rope form, along the
  • the fabric transport tube 11 preferably includes a
  • peripheral liquor sprayers including the first aforementioned sprayer 3 at the inlet or entry end 16 to the fabric transport tube 11 and a second peripheral liquor sprayer 4.
  • the two peripheral sprayers are preferably supplied by a common header 12.
  • the second peripheral liquor sprayer 4 is preferably positioned downstream of the first
  • peripheral liquor sprayer 3 and closely adjacent the midpoint 20 of the fabric transport tube 11. As shown, the nozzle of the second peripheral liquor sprayer 4 is spaced approximately 135mm from the approximate
  • the fabric transport tube 11 defines a generally horizontal centerline C ( Figure 3).
  • the transport tube 11 is preferably downwardly inclined in the region between the entry to the fabric transport tube 16 at the first peripheral liquor sprayer 3 and then upwardly inclined beginning near the midpoint of the fabric transport tube 20.
  • a first transport zone is defined commencing at the fabric inlet to the fabric transport tube 16 where the first peripheral liquor sprayer 3 is positioned, and then extending at a generally downward mild incline to the approximate midpoint 20 of the fabric transport tube 11 whereupon a second transport zone intersects the first transport zone at the lowermost point in the fabric transport tube and then extends at a gentle slope upwardly at an incline to the outlet of the fabric transport tube defined by the means mounting the plaiter mechanism 5.
  • the fabric transport tube will have a shallow v-shaped outline in profile, in this manner, the fabric.
  • transport tube 11 will be flooded with dye liquor to improve the liquor fabric interchange within the fabric transport tube, but without significantly impeding the progress of the fabric through the transport tube, in addition, this design creates a slight turbulence which tends to rearrange the fabric folds leaving the first transport zone prior to treatment in the second
  • peripheral liquor sprayer 4 4.
  • the effective pressures at the nozzles of the peripheral liquor sprayers 3 and 4 may be varied in accordance with the invention, but will typically range from 0.1 to 0.5 bar which will correspondingly affect the speed of travel for the fabric 1 through the fabric transport tube 11.
  • the rate of travel for the fabric attainable with this
  • the angle defined by the interior diameter of the fabric transport tube and the sidewall of the nozzle within the peripheral liquor sprayer may also be varied but as shown is approximately 30
  • the included angle defined between the two sections of the fabric transport tube at the midpoint 20 also may be varied in accordance with the invention, but will preferably fall in the range from about no to about 180 degrees and preferably in the range from about 130 to 160 degrees to define the slight "v" shape in profile. As shown in Figure 3, the particular preferred arrangement defines an included angle of about 150 degrees at the midpoint 20 which is the junction between the first transport section and the second transport section.
  • the overall length of the fabric transport tube 11 also may be varied in accordance with the present invention as may be the approximate length of the first and second transport zones defined by the fabric transport tube.
  • the length of the first transport zone which is defined by the distance from the entry point 16 to the fabric transport tube 11 to the approximate midpoint 20 may vary in the range from 200 to 800 millimeters and is approximately 500 millimeters in the particular arrangement as depicted in the drawings.
  • the length of the second transport zone also may be varied over similar ranges and is preferably approximately the same length as the first section and at approximately the same positive angle corresponding to the negative angle applied in the first transport zone, so that the outlet of the fabric transport tube at the plaiting mechanism 7 at the bearing 5 will lie at approximately the same elevation as the entry point 16 at the first peripheral liquor sprayer 3.
  • a unique plaiting mechanism 7 is provided.
  • the curved plaiter 7 directs the fabric vertically downwardly into the liquid treatment chamber or storage chamber 10 ( Figure 1).
  • the curved plaiter 7 is preferably of rectangular cross-section throughout its length and may be a square.
  • the base of the plaiter is preferably mounted on a circular bearing 5 at the exit end of the fabric transport tube and preferably comprises a stainless steel spherical ball roller bearing 5 which is rotatably fixed to the end of the fabric transport tube. In this manner, the entire plaiting mechanism 7 may be oscillated rapidly about the centerline of the transport tube C.
  • the plaiter 7 defines an outlet nozzle 15 which extends downwardly into fluid
  • the plaiting mechanism is mounted on a circular bearing 5 about which it may be oscillated in any known fashion through the
  • the plaiter may be oscillated at rates ranging from 10 to 50 complete strokes per minute and travels in a path which preferably defines a straight line across the complete width of the inlet to the liquid treatment chamber.
  • the outlet nozzle 15 defined by the plaiter 7 is oriented approximately 90 degrees to the chamber centerline and is also substantially perpendicular to the longitudinal axis or centerline C of the fabric transport tube 11. If the tube 11 is substantially straight then the angle defined between the centerline C and the nozzle 15 will be around approximately 90 degrees. Since the
  • centerline C of the transport tube 11 will vary in its geometry from a straight line, and particularly in accordance with the preferred embodiments, the exact angle may vary and it is only important that the outlet nozzle 15 is downwardly directed and reciprocates along a generally linear path of travel which is transverse to the centerline and such that the fabric material 1 passing through the transport tube 11 is deposited in the inlet of the liquid treatment chamber in overlying relatively straight folds.
  • centerline C and the outlet nozzle 15 will be less than about SO degrees. In this manner, the path of travel of the nozzle 15 will be a straight line across the width of the storage chamber 10 in contrast to pricr art devices.
  • the present invention also preferably includes a liquor bypass 8 in the plaiter assembly 7 which includes a bypass nozzle 9 which preferably communicates with the storage chamber through a path which is longitudinally spaced apart from the main path of travel of the fabric entering the storage chamber 10.
  • a liquor bypass 8 in the plaiter assembly 7 which includes a bypass nozzle 9 which preferably communicates with the storage chamber through a path which is longitudinally spaced apart from the main path of travel of the fabric entering the storage chamber 10.
  • this invention also relates to the resulting method of dyeing a length of textile material as described hereinabove which includes the steps of guiding a length of textile material through a generally horizontally directed transport tube while applying a jet of liquid dye onto the material in the tube to dye the fabric and advance it through the transport tube.
  • the textile material is then advanced downwardly from the exit end of the transport tube and reciprocated along a linear path of travel transverse to the direction of advance through the transport tube so as to form overlying relatively straight folds of the material in the transport chamber.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Coloring (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

Un appareil amélioré de teinture par tuyères permet de teindre des tissus (11) légers ou relativement lourds dans un même appareil avec une plus grande efficacité et une qualité améliorée des produits. L'appareil comprend un mécanisme unique (7) de pliage monté sur l'extrémité de sortie d'un tuyau de transport (11) de manière à tourner autour du tuyau de transport (11), de sorte qu'une tuyère de sortie (15) orientée vers le bas définie par le mécanisme de pliage (7) effectue un mouvement alternatif le long d'un trajet de déplacement généralement linéaire, transversal au tuyau de transport (11), et de sorte que le tissu (1) qui traverse le tuyau de transport (11) soit déposé dans une chambre (10) de traitement liquide en plis surjacents relativement droits, afin de maximiser la capacité de l'appareil de teinture et d'améliorer la stabilité du tissu traité dans l'appareil. En outre, selon un aspect supplémentaire de l'invention, on peut obtenir une capacité plus élevée en utilisant un tuyau de transport (11) avec une pluralité de systèmes vaporisateurs (3, 4) du bain de teinture, ayant de préférence un profil en V, de sorte qu'une première zone de transport soit de préférence légèrement inclinée vers le bas et qu'une deuxième zone de transport qui contient la tuyère de pliage soit généralement inclinée vers le haut. L'invention concerne également un procédé apparenté de teinture de matières textiles.
PCT/EP1991/000896 1990-05-14 1991-05-11 Procede et appareil de teinture par tuyeres Ceased WO1991018141A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE69121514T DE69121514T3 (de) 1990-05-14 1991-05-11 Jetfärbenvorrichtung und verfahren
EP91909184A EP0482166B2 (fr) 1990-05-14 1991-05-11 Procede et appareil de teinture par tuyeres
US07/793,403 US5299339A (en) 1990-05-14 1991-05-11 Jet dyeing apparatus and method
HK93597A HK93597A (en) 1990-05-14 1997-06-26 Jet dyeing apparatus and method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GR900100361 1990-05-14
GR90100361 1990-05-14

Publications (1)

Publication Number Publication Date
WO1991018141A1 true WO1991018141A1 (fr) 1991-11-28

Family

ID=10940141

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1991/000896 Ceased WO1991018141A1 (fr) 1990-05-14 1991-05-11 Procede et appareil de teinture par tuyeres

Country Status (8)

Country Link
EP (1) EP0482166B2 (fr)
AT (1) ATE141658T1 (fr)
AU (1) AU7862091A (fr)
DE (1) DE69121514T3 (fr)
ES (1) ES2091927T5 (fr)
GR (1) GR1000210B (fr)
HK (1) HK93597A (fr)
WO (1) WO1991018141A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2686102A1 (fr) * 1992-01-14 1993-07-16 Champagne Teinturerie Dispositif pour le traitement notamment la teinture de pieces textiles de maniere a garantir une meilleure stabilite dimensionnelle de ces pieces.
US5621937A (en) * 1994-04-04 1997-04-22 S. Sclavos, S.A. Jet dyeing apparatus and method
WO2007051590A1 (fr) * 2005-11-02 2007-05-10 Mcs Officina Meccanica S.P.A. Machine de teinture de tissu a structure en boyau avec depot mecanique de tissu alimente par un systeme d'accumulation synchronise, et procede connexe
EP1865097A1 (fr) * 2006-06-07 2007-12-12 Laip S.R.L. Machine et procédé de traitement de structure
WO2024168783A1 (fr) * 2023-02-17 2024-08-22 立信染整机械(广东)有限公司 Structure de trémie oscillante à débordement basse tension et machine de teinture la comprenant

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2165245B1 (es) * 1998-03-11 2004-10-16 Cristobal Gimenez Espinosa Mejoras en maquinas para el tratamiento de tejidos en cuerda continua.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3802840A (en) * 1970-08-10 1974-04-09 Nippon Dyeing Machine Mfg Co Method for treatment of a fabric
FR2315564A1 (fr) * 1975-06-26 1977-01-21 Barriquand Freres Perfectionnements apportes aux appareils de traitement de tissus ou tricots
US4142385A (en) * 1973-03-28 1979-03-06 Avesta Jernverks Ab Apparatus for wet processing textile material
GB2004927A (en) * 1977-09-30 1979-04-11 Mezzera Spa Jet dyeing apparatus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2031969B (en) * 1978-10-18 1983-03-09 Hisaka Works Ltd Jet treatment of textiles

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3802840A (en) * 1970-08-10 1974-04-09 Nippon Dyeing Machine Mfg Co Method for treatment of a fabric
US4142385A (en) * 1973-03-28 1979-03-06 Avesta Jernverks Ab Apparatus for wet processing textile material
FR2315564A1 (fr) * 1975-06-26 1977-01-21 Barriquand Freres Perfectionnements apportes aux appareils de traitement de tissus ou tricots
GB2004927A (en) * 1977-09-30 1979-04-11 Mezzera Spa Jet dyeing apparatus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2686102A1 (fr) * 1992-01-14 1993-07-16 Champagne Teinturerie Dispositif pour le traitement notamment la teinture de pieces textiles de maniere a garantir une meilleure stabilite dimensionnelle de ces pieces.
EP0552100A1 (fr) * 1992-01-14 1993-07-21 Teinturerie De Champagne Dispositif pour le traitement notamment la teinture de pièces textiles de manière à garantir une meilleure stabilité dimensionnelle de ces pièces
US5621937A (en) * 1994-04-04 1997-04-22 S. Sclavos, S.A. Jet dyeing apparatus and method
CN1071388C (zh) * 1995-08-14 2001-09-19 S·斯克拉沃斯有限公司 喷射染色设备和方法
WO2007051590A1 (fr) * 2005-11-02 2007-05-10 Mcs Officina Meccanica S.P.A. Machine de teinture de tissu a structure en boyau avec depot mecanique de tissu alimente par un systeme d'accumulation synchronise, et procede connexe
EP1865097A1 (fr) * 2006-06-07 2007-12-12 Laip S.R.L. Machine et procédé de traitement de structure
WO2024168783A1 (fr) * 2023-02-17 2024-08-22 立信染整机械(广东)有限公司 Structure de trémie oscillante à débordement basse tension et machine de teinture la comprenant

Also Published As

Publication number Publication date
HK93597A (en) 1997-08-01
DE69121514T2 (de) 1997-02-13
EP0482166A1 (fr) 1992-04-29
ES2091927T5 (es) 2000-07-16
ATE141658T1 (de) 1996-09-15
EP0482166B2 (fr) 2000-05-17
DE69121514T3 (de) 2005-04-07
DE69121514D1 (de) 1996-09-26
GR1000210B (el) 1992-04-17
ES2091927T3 (es) 1996-11-16
AU7862091A (en) 1991-12-10
EP0482166B1 (fr) 1996-08-21

Similar Documents

Publication Publication Date Title
US5621937A (en) Jet dyeing apparatus and method
US4392365A (en) Apparatus for treating textile material for continuous length
US5299339A (en) Jet dyeing apparatus and method
US5440771A (en) Jet dyeing apparatus and method
US4023385A (en) Oscillating valve for jet dye beck
US4153961A (en) Method and apparatus for randomly dyeing textile yarns in a continuous system
EP0482166B2 (fr) Procede et appareil de teinture par tuyeres
JPS6338463B2 (fr)
US5129242A (en) Low-liquid jet machine for wet processing textile fabric
US5623738A (en) Machine and method for the continuous washing of a fabric
US3979930A (en) Method and an apparatus for treating textile materials
US4037560A (en) Apparatus for discontinuously applying fluid to a strand-like material
US3686905A (en) Method and machines for dyeing textile piece goods
US4104770A (en) Yarn treating jet moving a rotating baffle and deflector at its outlet and method of operation thereof
US7398574B2 (en) Method and apparatus for treating ropelike textile goods
US6427495B1 (en) Compact machine for the treatment of cord fabrics, in particular for dyeing
HK1022935B (en) Jet dyeing apparatus and method
EP2550388B1 (fr) Machine pour le traitement discontinu de boyaux de tissu
GB2404925A (en) Nozzles for textile machines
EP1162299B1 (fr) Machine pour le traitement, notamment la teinture, des tissus sous forme de boyau
DE202004003500U1 (de) Jetfärbenvorrichtung
KR200199816Y1 (ko) 액류순환형 포직물염색기의 포직물유도장치
US3942315A (en) Treatment of textile fibre products
KR200252485Y1 (ko) 포직물염색기
JPS61502475A (ja) 糸条への液体の付与方法並びに装置

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AT AU BB BG BR CA CH DE DK ES FI GB HU JP KP KR LK LU MC MG MW NL NO PL RO SD SE SU US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE BF BJ CF CG CH CI CM DE DK ES FR GA GB GR IT LU ML MR NL SE SN TD TG

WWE Wipo information: entry into national phase

Ref document number: 1991909184

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1991909184

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: CA

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

WWG Wipo information: grant in national office

Ref document number: 1991909184

Country of ref document: EP