EP0489191A1 - Procédé et appareillage de mercerisage en continu - Google Patents

Procédé et appareillage de mercerisage en continu Download PDF

Info

Publication number
EP0489191A1
EP0489191A1 EP90123294A EP90123294A EP0489191A1 EP 0489191 A1 EP0489191 A1 EP 0489191A1 EP 90123294 A EP90123294 A EP 90123294A EP 90123294 A EP90123294 A EP 90123294A EP 0489191 A1 EP0489191 A1 EP 0489191A1
Authority
EP
European Patent Office
Prior art keywords
yarns
vessels
vessel
bath
assembly
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.)
Granted
Application number
EP90123294A
Other languages
German (de)
English (en)
Other versions
EP0489191B1 (fr
Inventor
Ambrogio Caccia Dominioni
Luciano Casasola
Umberto Gerin
Fabio Lancerotto
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.)
GESMA - Gestione Sviluppo Medie Aziende SpA
Original Assignee
GESMA - Gestione Sviluppo Medie Aziende SpA
Cerit SpA
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
Application filed by GESMA - Gestione Sviluppo Medie Aziende SpA, Cerit SpA filed Critical GESMA - Gestione Sviluppo Medie Aziende SpA
Priority to DE69027605T priority Critical patent/DE69027605T2/de
Priority to EP90123294A priority patent/EP0489191B1/fr
Priority to AT90123294T priority patent/ATE139812T1/de
Publication of EP0489191A1 publication Critical patent/EP0489191A1/fr
Application granted granted Critical
Publication of EP0489191B1 publication Critical patent/EP0489191B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • D06B7/00—Mercerising, e.g. lustring by mercerising
    • D06B7/04—Mercerising, e.g. lustring by mercerising of yarns, threads or filaments

Definitions

  • This invention concerns a method for the continuous mercerising of cotton yarns and other suitable yarns.
  • the invention concerns a method suitable to carry out mercerising treatment of a plurality of yarns being unwound continuously from at least one feeder beam.
  • the invention concerns also an apparatus which employs the above method.
  • the state of the art covers a plurality of methods and apparatuses for mercerising fabrics and yarns, especially cotton fabrics and yarns.
  • mercerising is a treatment employing caustic soda, which is applied to yarns for instance, and we shall refer to yarns in the description that follows, the yarns being subjected to a suitable tension to cause them to obtain a lustre like that of silk.
  • the mercerising process is applied above all to yarns intended for knitting by hand or machine, yarns for shirts and embroidery and sewing threads.
  • a mercerised cotton can be dyed much more intensely than a non-mercerised cotton, thus entailing a smaller consumption of dyestuffs in the dyehouse.
  • the known mercerising methods and apparatuses are of two types, namely discontinuous and continuous.
  • discontinuous treatment is employed everywhere nowadays and is carried out in successive steps on yarns generally wound in hanks. These steps arrange that the yarn is impregnated with the mercerising liquid, is then drawn, freed of caustic soda, rinsed and lastly neutralized.
  • US 3,789,469 and its equivalent FR 2.213.997 disclose in particular a system suitable to unwind a plurality of yarns from a beam positioned to feed a continuous mercerising plant.
  • the method provides for the plurality of yarns to be divided into groups by being tied with a lease yarn.
  • This system enables the plurality of yarns to be guided and kept in the right position while being unwound from the beam and undergoing the mercerising treatment.
  • GB 1,218,260 discloses a continuous mercerising device consisting substantially of a pair of tapered rolls on which the yarn to be mercerised is wound.
  • the taper of the rolls causes tensioning of the yarn, which undergoes the mercerising action while being wound on the rolls.
  • This device is suitable to treat one single yarn coming from a yarn package.
  • GB 2,051,156 discloses a continuous mercerising device used especially for filament yarns and consisting of a vessel which contains assemblies of rolls that can be positioned in relation to each other so as to be able to vary the path of the textile material.
  • DE 1.610.882 discloses a mercerising process comprising in particular a bath to bleach the textile material, which is passed through this bath after the mercerising and washing steps.
  • JP 76022559 and JP 76014638 disclose continuous mercerising processes whereby the textile material is immersed in succession in a plurality of caustic soda solutions so as to obtain its final strength value gradually.
  • the present applicant has the purpose of obtaining a continuous mercerising method and apparatus which are suitable for achieving a process which can be employed on an industrial scale at modest costs with high-quality technological results.
  • the method according to the invention provides for the continuous treatment of a plurality of yarns being unwound parallel to each other from at least one feeder beam. This plurality of yarns undergoes substantially six mercerising treatment steps:
  • the yarns are taken up advantageously in separate groups on a plurality of beams having smaller dimensions than the feeder beam or beams.
  • the above mercerising steps are carried out in a plurality of vessels which can be made movable so as to enable the yarns to be readily passed through, and inserted into, the operational assemblies arranged within such vessels. This becomes necessary upon each change of the lots being processed or owing to maintenance work or the like.
  • Each vessel or each group of vessels is equipped advantageously with its own motor and control means governed by a central processor unit which sets the various working parameters from time to time.
  • the apparatus of the invention may be equipped also with a system to monitor all the physical values entailed in the treatment so as to optimise every operational step, particularly from a technological or energy-consumption point of view.
  • the yarns may be tied crosswise to their direction of feed in the apparatus at pre-set intervals so as to ensure the advance of each yarn along the whole path of the treatment, even in the event of any breakages. These lease ties may be removed before the yarns are wound onto their take-up beams.
  • Figs.1 and 2 give a diagram of the embodiment of a mercerising apparatus 10 according to the invention.
  • the apparatus 10 is fed with a plurality of yarns 11 being unwound from at least one beam 12 packaged on a warping machine.
  • the feed consists of two beams 112 and 212 to feed separately two sides having an identical configuration 110-210 into which the mercerising apparatus 10 can be divided.
  • the apparatus 10 may not be divided in this way.
  • the speed of unwinding of the yarns 11 from the beam 12 can reach 60 metres per minute or more and will ensure at the same time the required level of quality of the product thus treated.
  • the yarns 11 unwound from the beam 12 are fed to a pre-wash assembly 13 consisting in this example of three equal vessels 14, through which the yarns 11 are passed in succession.
  • a plurality of vessels 14 comprised also in assemblies located downstream of the pre-wash assembly 13 is employed in the mercerising apparatus 10.
  • this vessel 14 comprises a container 15 for trteatment liquid, a pair of upper transverse rolls 16 at the entry and exit of the vessel 14, a pair of lower transverse rolls 17 positioned at the bottom of the vessel 14 and an intermediate transverse transmission roll 18.
  • Thrust means 19 to press on the yarns 11 in correspondence at least with the upper rolls 16 may also be included.
  • Actuation means 20 to drive the rolls are positioned above the vessel 14 and may cooperate with one single vessel 14 or with groups of vessels 14.
  • the intermediate transmission roll 18 is equipped advantageously with its own motor, which can move the roll 18 crosswise to the direction of feed of the yarns 11; the purpose of this is to be able to ensure correct positioning of the plurality of yarns 11 during their movement of feed through the apparatus 10; the position of the yarns 11 is monitored by control means, such as photoelectric cells cooperating with the motor of the intermediate transmission roll 18.
  • Each vessel 14 can displace its container 15 within the apparatus 10 so as to free the upper, lower and intermediate rolls 16-17-18 for the purpose of enabling an easy insertion and passage of the yarns 11 during operations for changes of lots or other operational requrements.
  • the containers 15 can be lowered to the position shown with lines of dashes in Fig.3.
  • the quantity and temperature of the water and its content of surface active agents may be checked advantageously by means of suitable sensors in the vessels 14; these sensors will be linked to centralised control systems for automatic management of the operations. This feature is included also in any other operational assembly which will be described hereinafter.
  • Water to top up the vessels 14 of the pre-wash assembly 13 can be prepared in a separate tank and heated by means of heat exchangers, independently or with the water coming from the recovery of caustic soda, as we shall detail later.
  • the yarns 11 in the embodiment shown take about 10 to 11 seconds to pass through the pre-wash assembly 13 fully according to experiments conducted by the present applicant.
  • the yarns 11 pass from the pre-wash assembly 13 to an assembly 21 which performs impregnation with caustic soda and in this example consists of two vessels 14.
  • the temperature of the bath is kept at about 40°C, while the metering and heating of the caustic soda can be carried out and checked in a supplementary container.
  • the yarns 11 pass from the impregnation assembly 21 to a stabilization and tensioning assembly 22 consisting of a stabilization and tensioning chamber 23 equipped with a plurality of upper rolls 24 and coordinated lower rolls 25.
  • the stabilization phase in the above conditions lasts for a period of about 36 to 38 seconds.
  • the yarns 11 are drawn by tensioning, for instance by a length equal to 4% of the initial length, during a period of about 3 to 4 seconds.
  • All the lower rolls 25 in the chamber 23 are advantageously partly immersed in caustic soda to prevent possible oxidation of the yarns 11.
  • the step of neutralization of the yarns 11 consists of a first washing stage, a second actual neutralization stage and a third rinsing stage.
  • the washing stage is performed by a wash assembly 26 consisting of two groups each formed of two vessels 14, each vessel 14 containing water at a temperature of about 80°C.
  • the actual neutralization stage is carried out by a neutralization assembly 27 consisting of two vessels 14 containing an acid bath to neutralize the pH.
  • the rinsing stage is performed by a rinsing assembly 28 consisting of three vessels 14 containing water at a temperature of about 40°C.
  • the vessels 14 in the wash assembly 26 and rinse assembly 28 are equipped with an inlet and outlet for the water, which is fed continuously so as to flow in the opposite direction to the feed of the yarns 11 to be treated.
  • the water passes advantageously from one vessel 14 to the next wthin each of the above assemblies 26-28 by an overflow system.
  • the water collected at the outlets of the wash assembly 26 and rinse assembly 28 can be processed to recover caustic soda by evaporation of the water.
  • the thermal energy made available during the processing can be employed to heat the water used in the upstream steps.
  • the yarns 11 pass from the rinse assembly 28 to a drier assembly 29 consisting of an oven 30 in which the yarns 11 undergo a series of passes about upper rolls 31 and lower rolls 32.
  • the oven 30 may advantageously be of a type with a circulation of a forced draught of air heated by a submerged combustion system, as described in IT-A-83487 A/89 in the name of the present applicant.
  • the yarns 11 undergo firstly a water removal process that brings the value of relative humidity down to about 70%; thereafter they are passed through the oven 30 in contact with air heated to a temperature between 90° and 120°C and then leave the oven 30 with a relative humidity of about 7 to 8%.
  • the yarns 11 leaving the drier assembly 29 are taken up on a beam or advantageously a plurality of small beams 33, each of which will hold an aliquot part of the yarns 11 held on the feeder beam 12 or feeder beams 112-212. These small take-up beams 33 will be used to feed a suitable unwinding-winding machines thereafter.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
EP90123294A 1990-12-05 1990-12-05 Procédé et appareillage de mercerisage en continu Expired - Lifetime EP0489191B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE69027605T DE69027605T2 (de) 1990-12-05 1990-12-05 Verfahren und Vorrichtung zum kontinuierlichen Mercerisieren
EP90123294A EP0489191B1 (fr) 1990-12-05 1990-12-05 Procédé et appareillage de mercerisage en continu
AT90123294T ATE139812T1 (de) 1990-12-05 1990-12-05 Verfahren und vorrichtung zum kontinuierlichen mercerisieren

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP90123294A EP0489191B1 (fr) 1990-12-05 1990-12-05 Procédé et appareillage de mercerisage en continu

Publications (2)

Publication Number Publication Date
EP0489191A1 true EP0489191A1 (fr) 1992-06-10
EP0489191B1 EP0489191B1 (fr) 1996-06-26

Family

ID=8204796

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90123294A Expired - Lifetime EP0489191B1 (fr) 1990-12-05 1990-12-05 Procédé et appareillage de mercerisage en continu

Country Status (3)

Country Link
EP (1) EP0489191B1 (fr)
AT (1) ATE139812T1 (fr)
DE (1) DE69027605T2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0632155A1 (fr) * 1993-06-30 1995-01-04 GESMA - Gestione Sviluppo Medie Aziende SpA Procédé et appareil de mercerisage en continu de fibres polyester
EP0702102A1 (fr) * 1994-08-31 1996-03-20 GESMA - Gestione Sviluppo Medie Aziende SpA Cuve pour le traitement au mouillé en continu de fils disposés en bandes
CN101525826B (zh) * 2009-03-10 2012-05-09 东华大学 一种纱线束状连续回流丝光的方法
WO2014071677A1 (fr) * 2012-11-12 2014-05-15 无锡市天然绿色纤维科技有限公司 Appareil de mercerisage continu pour tresses et son procédé de traitement

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1350199A (fr) * 1962-01-29 1964-01-24 Hermann Windel Perfectionnements apportés aux installations de mercerisage
FR2024796A7 (en) * 1968-10-25 1970-09-04 Vepa Ag Textile fabric mercerisation
DE1610882A1 (de) * 1966-04-01 1971-07-08 Patentdienst Anstalt F Verfahren und Vorrichtung zum Mercerisieren von Garn
FR2217467A1 (fr) * 1973-02-14 1974-09-06 Heberlein & Co Ag
DE3021783A1 (de) * 1980-06-10 1981-12-17 Ivanovskij naučno-issledovatel'skij eksperimental'no-konstruktorskij mašinostroitel'nyj institut, Ivanovo Verfahren zur behandlung von baumwollrohgewebe aus zwirn und anlage zur durchfuehrung des verfahrens
EP0144818A1 (fr) * 1983-11-15 1985-06-19 Babcock Textilmaschinen GmbH Procédé et installation de mercissage de matières textiles en bandes

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1350199A (fr) * 1962-01-29 1964-01-24 Hermann Windel Perfectionnements apportés aux installations de mercerisage
DE1610882A1 (de) * 1966-04-01 1971-07-08 Patentdienst Anstalt F Verfahren und Vorrichtung zum Mercerisieren von Garn
FR2024796A7 (en) * 1968-10-25 1970-09-04 Vepa Ag Textile fabric mercerisation
FR2217467A1 (fr) * 1973-02-14 1974-09-06 Heberlein & Co Ag
DE3021783A1 (de) * 1980-06-10 1981-12-17 Ivanovskij naučno-issledovatel'skij eksperimental'no-konstruktorskij mašinostroitel'nyj institut, Ivanovo Verfahren zur behandlung von baumwollrohgewebe aus zwirn und anlage zur durchfuehrung des verfahrens
EP0144818A1 (fr) * 1983-11-15 1985-06-19 Babcock Textilmaschinen GmbH Procédé et installation de mercissage de matières textiles en bandes

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0632155A1 (fr) * 1993-06-30 1995-01-04 GESMA - Gestione Sviluppo Medie Aziende SpA Procédé et appareil de mercerisage en continu de fibres polyester
EP0702102A1 (fr) * 1994-08-31 1996-03-20 GESMA - Gestione Sviluppo Medie Aziende SpA Cuve pour le traitement au mouillé en continu de fils disposés en bandes
CN101525826B (zh) * 2009-03-10 2012-05-09 东华大学 一种纱线束状连续回流丝光的方法
WO2014071677A1 (fr) * 2012-11-12 2014-05-15 无锡市天然绿色纤维科技有限公司 Appareil de mercerisage continu pour tresses et son procédé de traitement

Also Published As

Publication number Publication date
DE69027605T2 (de) 1996-10-31
ATE139812T1 (de) 1996-07-15
DE69027605D1 (de) 1996-08-01
EP0489191B1 (fr) 1996-06-26

Similar Documents

Publication Publication Date Title
KR19990064282A (ko) 초임계 유체로 직물 기층을 처리하는 방법 및 장치
US20050000032A1 (en) Equipment and process to finish fabrics in general
US3789469A (en) Yarn treating method
US4416124A (en) Sheet-dyeing apparatus
EP0489191B1 (fr) Procédé et appareillage de mercerisage en continu
EP1900864B1 (fr) Procédé et dispositif pour le mercerisage en continu des fils textiles
US3766581A (en) Process for continuously treating thread
GB2083847A (en) Wet heat treating textiles
US3449060A (en) Treatment of textile fabric
US4376632A (en) Process and plant for the continuous mercerization of raw or colored open or tubular knitted fabric
EP1668179B1 (fr) Procede de teinture a l'indigo de laine pure et de melanges de laines
US3137056A (en) Method for dyeing and treating textile material
CN113882097B (zh) 用于处理纺织织物的方法和设备
JPS5953940B2 (ja) 繊維品の連続洗浄方法
EP0632155A1 (fr) Procédé et appareil de mercerisage en continu de fibres polyester
EP1106725A2 (fr) Machine pour le lavage et l'apprêtage continu des tissus ou analogues
IT8983488A1 (it) Procedimento di mercerizzazione in continuo e apparecchiatura adottante tale procedimento
US3404942A (en) Shrinkproofing of animal fibers
DE3032395A1 (de) Verfahren zum dampfverfilzen eines zumindest teilweise aus wolle bestehenden stoffs
GB1573094A (en) Continuous processing of thick textiles
JPS5928656B2 (ja) 布帛の連続湿熱処理加工方法
SU294370A1 (ru) Способ повышения безусадочности шерстяноговолокна
DE1610882C3 (de) Verfahren und Vorrichtung zum Veredeln von Garn
JPH0319955A (ja) シルケット加工法及びシルケット加工設備
EP1270789A2 (fr) Dispositif et procédé pour la teinture et le mercerisage des filaments ou fils

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: M.T.S. SPA

17P Request for examination filed

Effective date: 19920904

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: GESMA - GESTIONE SVILUPPO MEDIE AZIENDE SPA

17Q First examination report despatched

Effective date: 19941018

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

ITF It: translation for a ep patent filed

Owner name: STUDIO GLP S.R.L.

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19960626

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19960626

Ref country code: BE

Effective date: 19960626

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19960626

Ref country code: DK

Effective date: 19960626

Ref country code: AT

Effective date: 19960626

REF Corresponds to:

Ref document number: 139812

Country of ref document: AT

Date of ref document: 19960715

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: JEAN S. ROBERT ING.-CONSEIL

ET Fr: translation filed
REF Corresponds to:

Ref document number: 69027605

Country of ref document: DE

Date of ref document: 19960801

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19960926

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19961205

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19961231

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19961205

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Free format text: GESMA - GESTIONE SVILUPPO MEDIE AZIENDE SPA TRANSFER- JAEGGLI S.P.A.

Ref country code: CH

Ref legal event code: NV

Representative=s name: R. A. EGLI & CO. PATENTANWAELTE

Ref country code: CH

Ref legal event code: PUE

Owner name: JAEGGLI S.P.A. TRANSFER- REGGIANI MACCHINE S.P.A.

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20031210

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20031223

Year of fee payment: 14

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041231

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041231

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050831

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051205

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20061231

Year of fee payment: 17

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: IT

Effective date: 20080301

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20071221

Year of fee payment: 18

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: IT

Effective date: 20080301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090701