EP1923496A1 - Chiffon de nettoyage - Google Patents

Chiffon de nettoyage Download PDF

Info

Publication number
EP1923496A1
EP1923496A1 EP05782032A EP05782032A EP1923496A1 EP 1923496 A1 EP1923496 A1 EP 1923496A1 EP 05782032 A EP05782032 A EP 05782032A EP 05782032 A EP05782032 A EP 05782032A EP 1923496 A1 EP1923496 A1 EP 1923496A1
Authority
EP
European Patent Office
Prior art keywords
cleaning
fibers
ridge regions
cleaning cloth
cloth
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
EP05782032A
Other languages
German (de)
English (en)
Other versions
EP1923496A4 (fr
EP1923496B1 (fr
Inventor
Masayoshi Kakutani
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.)
Sanko Co Ltd
Original Assignee
Sanko Co Ltd
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 Sanko Co Ltd filed Critical Sanko Co Ltd
Publication of EP1923496A1 publication Critical patent/EP1923496A1/fr
Publication of EP1923496A4 publication Critical patent/EP1923496A4/fr
Application granted granted Critical
Publication of EP1923496B1 publication Critical patent/EP1923496B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H11/00Non-woven pile fabrics
    • D04H11/08Non-woven pile fabrics formed by creation of a pile on at least one surface of a non-woven fabric without addition of pile-forming material, e.g. by needling, by differential shrinking
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L13/00Implements for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L13/10Scrubbing; Scouring; Cleaning; Polishing
    • A47L13/16Cloths; Pads; Sponges

Definitions

  • the present invention relates to a cleaning cloth used to wipe off and clean stains adhering to glass, pottery, synthetic resins, metals, stone materials, and other various materials of tableware, rice cooling tools, utensils and others.
  • Patent Document 1 discloses an abrasive cloth, wherein abrasive grains are bonded and fixed to the fiber surface of a nonwoven cloth containing synthetic fibers each having a flatness factor of 5 or more with a binder interposed therebetween.
  • Patent Document 2 discloses an abrasive cloth, wherein silicon carbide abrasive grains are bonded and fixed to fibers of a nonwoven cloth containing a metal-plated synthetic resin fiber.
  • Patent Document 3 discloses an abrasive cloth, wherein a urea resin and silicon carbide abrasive grains are bonded and fixed to fibers of a nonwoven cloth.
  • Patent Documents 4 and 5 each disclose an abrasive cloth, wherein abrasive grains are bonded and fixed not to individual fibers but to a single surface or both surfaces of a nonwoven cloth with an adhesive agent.
  • Patent Documents 6 and 7 each disclose an abrasive cloth, wherein a porous resin layer is formed on fibers of a nonwoven cloth without using any abrasive grain.
  • Patent Document 1 JP-A-5-220670
  • Patent Document 2 JP-A-6-155310
  • Patent Document 3 JP-A-6-155311
  • Patent Document 4 JP-A-5-28477
  • Patent Document 5 JP-A-9-22886
  • Patent Document 6 JP-A-6-17374
  • Patent Document 7 JP-A-7-108465
  • abrasive grains are bonded and fixed only to a surface layer of a nonwoven cloth with an adhesive agent. Accordingly, only the surface layer region to which the abrasive grains are bonded and fixed has an abrading power; at the same time when an adhesive agent layer is worn away, the abrasive grains are peeled off. Thus, the abrasive cloths have a problem that the abrading power falls rapidly.
  • the nonwoven cloth is impregnated with a solution of a polyurethane resin or a polysulfone resin in a polar solvent having a high boiling point, such as dimethylformamide (DMF) and subsequently the DMF solvent is removed by using water or hot water; therefore, a troublesome step, such as distillation, is necessary to collect the solvent.
  • a large amount of discharging water containing pollutants, such as BOD is generated so that a pollution problem may be caused.
  • post-treatment of the discharging water is required.
  • an object of the present invention is to provide a multipurpose cleaning cloth which makes it possible to clean stains adhering to the surface of an article to be cleaned effectively without use of a cleaner in the case of ordinary stains, or with a small amount of cleaner in the case of stubborn stains, without scratching the surface, by taking a structure itself of a nonwoven cloth into a unique consideration without bonding and fixing abrasive grains to fibers of the nonwoven cloth or a surface layer thereof or without forming a porous resin layer on fibers of the nonwoven cloth.
  • the cleaning cloth according to the present invention is a cloth, in which a large number of parallel ridge regions each having a predetermined width are formed at predetermined intervals in a nonwoven cloth made of synthetic resin fibers each having a small diameter so that the fibers protrude in a loop by needle punching means.
  • the thickness of regions in the nonwoven cloth, in which the ridge regions are not formed is from 1 to 3 mm
  • the density of the nonwoven cloth is from 0.15 to 0.40 g/cm 3
  • the height of the ridge regions is from 4 to 6 mm
  • the interval between the ridge regions is from 4 to 8 mm
  • the width of the ridge regions is from 3 to 6 mm.
  • the synthetic resin fiber constituting the nonwoven cloth is a polyester fiber, and the fineness thereof is from 20 to 30 dtex.
  • the invention has a constituent as described above, it is possible for edges of a large number of ridge regions arranged in parallel to each other to function as cleaning edges to improve a performance of cleaning the surface of an article to be cleaned. Further, since the ridge regions have the predetermined width, an appropriate strength of the ridge regions can be secured to restrain the quantity of compressive deformation (end face sagging) of the edge parts by a pushing-force during cleaning. Thus, a high cleaning performance can be kept. For example, in the case where the cleaning cloth is used while tableware or the like is washed with water, drainage is made good by grooves made between the individual ridges. Thus, the cleaning effect can be improved.
  • the production process is simple and the cleaning cloth can be produced at low cost since the ridge regions can be effectively formed by needle punching using a nonwoven cloth as a base material. Additionally, since the ridge regions, which are substantially regions for a cleaning action, are integrated with the nonwoven cloth, there is an advantageous effect that the cleaning cloth is strong and has a long lifespan.
  • ridge region edges at the middles grooves or at upper ends of the grooves also function as the cleaning edges to produce an effect that a higher cleaning performance can be obtained.
  • a core material is polyester and a sheath material is polyethylene having a lower melting point than that of the core material
  • the form of the ridge regions can be adjusted.
  • synthetic resin fibers used in a nonwoven cloth are preferably polyester resin fibers since the fibers are firm and have abrasion resistance.
  • the resin fibers each have a triangular or rectangular sectional shape and apexes thereof are made as sharp as possible, a preferable cleaning effect can be expected.
  • Fig. 1 shows a nonwoven cloth, which is a base material of a cleaning cloth A according to the invention.
  • This nonwoven cloth 1 is preferably made of polyester fibers having a fineness of 20 to 30 dtex, preferably 28 dtex, and a thickness (t) of 1 to 3 mm, preferably 1.5 mm.
  • the density of the nonwoven cloth 1 is from 0.15 to 0.40 g/cm 3 , and is preferably 0.20 g/cm 3 . If the density is 0.15 g/cm 3 or less, the strength for keeping the shape deteriorates and further the effect of pulling out the fibers with the needle punch gets worse. If the density is more than 0.40 g/cm 3 , the needles are unfavorably damaged many times.
  • the cleaning cloth of the invention is preferably a cleaning cloth wherein the height (h) of the ridge regions 2 is form 4 to 6 mm, preferably 5 mm, the width (Wl) of the ridge regions 3 is from 3 to 6 mm, preferably 4 mm, the interval between the ridge regions 2, that is, the width (W2) of the grooves 3 is from 4 to 8 mm, preferably 6 mm.
  • the ridge regions 2 are formed so that a large number of fibers a protrude in a loop toward one of both surface sides thereof by needle punching means.
  • the needles are punched into the nonwoven cloth 1 along needle punching lines L having pairs of two adjacent lines L1 and L2, whereby the ridge regions 2 having a predetermined width can be formed by using the fibers a protruded toward the single surface.
  • the interval between the individual pairs of the two lines L1 and L2 is changed, for example, when the interval is made slightly large, slender immediate grooves 4 can be formed along the ridge direction between the ridge regions 2 and 2, as illustrated in Figs. 2 and 3 .
  • the ridge regions 2 having no intermediate grooves can be formed at intervals.
  • the ridge regions 2 are formed, and subsequently the surfaces of the protruded fibers are subjected to heating treatment to be shrunken, thereby adjusting the form of the ridge regions 2 and further improving the strength thereof.
  • the fibers a are rendered fibers each having a triangular form and its apexes are made sharp, as illustrated in Fig. 4(a) , or that the fibers a are made into a sheath/core structure, a core material c thereof is made of polyester, and a sheath material b thereof is made of polyethylene having a lower melting point than that of the core material c, as illustrated in Fig. 4(b) .
  • This manner makes it possible to deform some parts of the protruded and intertwined fibers a and a to adjust the form of the ridge regions 2 by subjecting the fibers to heating treatment under the condition of a temperature, which is not higher than the melting point of the core material c and causes the surface of the sheath material b to be melted.
  • the heating temperature in the heating treatment preferably ranges from 150 to 180°C.
  • the thus-formed cleaning cloth A of the first embodiment is a cleaning cloth, wherein the sectional shape of the individual fibers a, which constitute the cleaning cloth A, is made into a substantially equilateral triangle having sharp apexes.
  • stains such as hot water scurf and water scurf, and oily stains on tableware can be rubbed off with the sharp apexes of the individual fibers a.
  • the stains rubbed off once can be floated and embraced into water held between the fibers.
  • the stains are not again rubbed against the surface to be cleaned, so that stains can be effectively cleaned up only by water without using any cleaner.
  • Figs. 8 and 9 illustrate a third embodiment.
  • Fig. 8 is an enlarged view illustrating a sectional shape of a drawn monofilament made in the form of a substantial rectangle having projected portions 10, 10, ..., which are projected into four directions.
  • the monofilaments protrude in a loop by needle punching means, as in the first embodiment, to make ridge regions.
  • the thus-formed cleaning cloth also makes it possible to rub off stains such as hot water scurf and water scurf, and oily stains on tableware with the sharp apexes 10, 10, ... of the individual fibers a, which constitute the cleaning cloth.
  • stains can be effectively cleaned up only by water without using any cleaner.
  • the sectional shape of the polyester fibers a is preferably made into a sectional shape having different diameters, which has sharp apexes, as in fibers a having a substantially triangular shape or fibers a having a rectangular shape. This makes it possible to promote the cleaning performance.
  • the cleaning cloth A of the invention may be used as it is in the state that the cloth is appropriately divided and cut into the form of sheets.
  • a soft sponge support made of a foamed resin may be stuck on the lower surface of the cleaning cloth A so as to make the cloth into a cleaning tool.
  • the cleaning cloth of the invention can be used as a tool for cleaning articles in wide fields whether the articles are articles for households or industries in order to wipe off and clean stains adhering to the surface of glass, pottery, synthetic resins, metals, stone materials, and other various materials of tableware, rice cooling tools, utensils and others.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
  • Nonwoven Fabrics (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Multicomponent Fibers (AREA)
EP05782032A 2005-09-09 2005-09-09 Chiffon de nettoyage Expired - Fee Related EP1923496B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2005/016657 WO2007029335A1 (fr) 2005-09-09 2005-09-09 Chiffon de nettoyage

Publications (3)

Publication Number Publication Date
EP1923496A1 true EP1923496A1 (fr) 2008-05-21
EP1923496A4 EP1923496A4 (fr) 2009-01-14
EP1923496B1 EP1923496B1 (fr) 2010-11-10

Family

ID=37835472

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05782032A Expired - Fee Related EP1923496B1 (fr) 2005-09-09 2005-09-09 Chiffon de nettoyage

Country Status (6)

Country Link
US (1) US20090119862A1 (fr)
EP (1) EP1923496B1 (fr)
JP (1) JPWO2007029335A1 (fr)
DE (1) DE602005024721D1 (fr)
HK (1) HK1112494A1 (fr)
WO (1) WO2007029335A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4712840B2 (ja) * 2008-07-15 2011-06-29 大伸工業株式会社 車載用カーペット及びその製造方法
WO2012073544A1 (fr) * 2010-12-02 2012-06-07 ダイワボウホールディングス株式会社 Tissu non-tissé et procédé pour sa production et matériau de nettoyage
JP6159664B2 (ja) * 2014-01-31 2017-07-05 呉羽テック株式会社 通気抵抗が少ないプリーツタイプのフィルタ用不織布製濾材並びにその製造方法
JP5975540B2 (ja) * 2014-04-30 2016-08-23 孝衣 江口 洗浄布
JP6625798B2 (ja) * 2014-12-03 2019-12-25 ユニチカトレーディング株式会社 清掃布
USD799129S1 (en) * 2015-10-28 2017-10-03 Ebara Corporation Sponge for substrate cleaning
USD878694S1 (en) * 2017-06-16 2020-03-17 3M Innovative Properties Company Scouring article
USD901115S1 (en) 2016-12-22 2020-11-03 3M Innovative Properties Company Scouring article
USD955758S1 (en) * 2019-12-23 2022-06-28 Columbia Insurance Company Tufted article
USD955759S1 (en) * 2019-12-23 2022-06-28 Columbia Insurance Company Tufted article
USD954448S1 (en) * 2020-05-12 2022-06-14 Columbia Insurance Company Tufted article
USD1012566S1 (en) * 2020-05-28 2024-01-30 Emma Berumen Appliance handle cover
USD1021422S1 (en) * 2020-06-25 2024-04-09 Jan Erik Henningsen Reflective tape for ornamenting a garment

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1154842A (en) * 1965-07-21 1969-06-11 Ici Ltd Raised Tufted, Bonded Fibrous Structures
US4645699A (en) * 1984-06-27 1987-02-24 Spontex Incorporated Pile cleaning material and needling method of making same
WO1990014039A1 (fr) * 1989-05-24 1990-11-29 Ulla Eriksson Torchon de nettoyage
EP0744149A2 (fr) * 1995-05-23 1996-11-27 Firma Carl Freudenberg Torchon
EP0826811A2 (fr) * 1996-08-09 1998-03-04 Ahlstrom Lystil SA Matériau complexe nontisse absorbant comportant une face souple et une face rugueuse, et procédé pour son obtention
EP0864289A2 (fr) * 1997-03-12 1998-09-16 Firma Carl Freudenberg Tissu de nettoyage

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3666608A (en) * 1970-02-11 1972-05-30 Kimberly Clark Co Disposable towel
US4389442A (en) * 1980-06-16 1983-06-21 Ozite Corporation Wall covering fabric with texturized loops
US4342802A (en) * 1981-01-02 1982-08-03 Ozite Corporation Floor covering of needled woven fabric and nonwoven batt
JPS5944963U (ja) * 1982-09-13 1984-03-24 株式会社アカサカ たわし
SE503414C2 (sv) * 1994-10-07 1996-06-10 Actuelle Tricot I Boras Ab Rengöringstyg för avtorkning av smutsiga ytor och användning av detta rengöringstyg på en mopp för rengöring av smutsiga ytor
US5591507A (en) * 1995-04-04 1997-01-07 Jones; Samuel S. Absorbant cloth with agitating feature
JP3611141B2 (ja) * 1995-08-16 2005-01-19 ユニチカ株式会社 起毛様不織布及びその製造方法
EP1212972B1 (fr) * 2000-10-13 2015-12-09 Kao Corporation Feuille de nettoyage pour nettoyer des surfaces veloutées
JP4033645B2 (ja) * 2001-07-12 2008-01-16 花王株式会社 清掃用シート
US20030021944A1 (en) * 2000-12-29 2003-01-30 Morin Brian G. Combination loop textile
US7547469B2 (en) * 2002-12-03 2009-06-16 Velcro Industries B.V. Forming loop materials
CA2505554C (fr) * 2002-12-20 2009-07-14 The Procter & Gamble Company Bande fibreuse tuftee
US7578023B2 (en) * 2004-04-30 2009-08-25 3M Innovative Properties Company Applicator pad
US7562426B2 (en) * 2005-04-08 2009-07-21 Velcro Industries B.V. Needling loops into carrier sheets
FR2893036B1 (fr) * 2005-11-08 2008-03-14 Aplix Sa Stratifie non tisse-elastomere-non tisse
FR2915075B1 (fr) * 2007-04-19 2009-07-24 Decitex Soc Par Actions Simpli Article d'entretien.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1154842A (en) * 1965-07-21 1969-06-11 Ici Ltd Raised Tufted, Bonded Fibrous Structures
US4645699A (en) * 1984-06-27 1987-02-24 Spontex Incorporated Pile cleaning material and needling method of making same
WO1990014039A1 (fr) * 1989-05-24 1990-11-29 Ulla Eriksson Torchon de nettoyage
EP0744149A2 (fr) * 1995-05-23 1996-11-27 Firma Carl Freudenberg Torchon
EP0826811A2 (fr) * 1996-08-09 1998-03-04 Ahlstrom Lystil SA Matériau complexe nontisse absorbant comportant une face souple et une face rugueuse, et procédé pour son obtention
EP0864289A2 (fr) * 1997-03-12 1998-09-16 Firma Carl Freudenberg Tissu de nettoyage

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2007029335A1 *

Also Published As

Publication number Publication date
WO2007029335A1 (fr) 2007-03-15
HK1112494A1 (en) 2008-09-05
DE602005024721D1 (de) 2010-12-23
EP1923496A4 (fr) 2009-01-14
EP1923496B1 (fr) 2010-11-10
US20090119862A1 (en) 2009-05-14
JPWO2007029335A1 (ja) 2009-03-12

Similar Documents

Publication Publication Date Title
EP1923496A1 (fr) Chiffon de nettoyage
CA2577045C (fr) Chiffon de nettoyage
US7690069B2 (en) Cleaning tool with attachment projections providing additional cleaning functionalities
KR102641041B1 (ko) 스코어링 패드 및 스코어링 방법
US7497768B2 (en) Flexible abrasive article and method of making
JPH106218A (ja) ドレッシング用研磨材製品
DK2292379T3 (da) Fremgangsmåde til rensning af en poleret hård gulvoverflade af sten eller stenlignende
CN101421077A (zh) 层合柔韧弹性磨料制品
WO2007117966A1 (fr) Objet nettoyant souple
WO2007044275A1 (fr) Bande abrasive et son procede de fabrication
US20190046005A1 (en) Scrub Sponge with Selectively Accessible Abrasive Region
JP2008509765A (ja) 到達困難な箇所をクリーニングするための擦り拭きエレメント
JP2007050497A (ja) ブラシ用毛材
CN101258278A (zh) 抹布
JP2007030153A (ja) ロール
JPH0722898B2 (ja) 砥 石
US20030192141A1 (en) Scrub Sponge
KR20080045119A (ko) 세정포
JP3808652B2 (ja) 清掃用具
WO2008123880A1 (fr) Bande a recurer
AU782615B2 (en) Wet cleaning cloth, sponge or the like and a method for its production
JP2006055300A (ja) 掃除具
JP7246411B2 (ja) 研磨粒子の混合物を有する擦り磨き物品
JP2010131892A (ja) 不織布クリーナー
JP2023152220A (ja) 清掃用不織布

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

17P Request for examination filed

Effective date: 20080116

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IT

REG Reference to a national code

Ref country code: HK

Ref legal event code: DE

Ref document number: 1112494

Country of ref document: HK

RBV Designated contracting states (corrected)

Designated state(s): DE FR GB IT

A4 Supplementary search report drawn up and despatched

Effective date: 20081216

17Q First examination report despatched

Effective date: 20090323

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

DAX Request for extension of the european patent (deleted)
GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 602005024721

Country of ref document: DE

Date of ref document: 20101223

Kind code of ref document: P

REG Reference to a national code

Ref country code: HK

Ref legal event code: GR

Ref document number: 1112494

Country of ref document: HK

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

Effective date: 20110811

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

Ref country code: DE

Payment date: 20110907

Year of fee payment: 7

Ref country code: GB

Payment date: 20110907

Year of fee payment: 7

Ref country code: FR

Payment date: 20110922

Year of fee payment: 7

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602005024721

Country of ref document: DE

Effective date: 20110811

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

Ref country code: IT

Payment date: 20110913

Year of fee payment: 7

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20120909

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20130531

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

Ref country code: GB

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

Effective date: 20120909

Ref country code: DE

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

Effective date: 20130403

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

Effective date: 20120909

Ref country code: FR

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

Effective date: 20121001

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602005024721

Country of ref document: DE

Effective date: 20130403