EP1041025A2 - Verfahren und Vorrichtung zur Vorbereitung einer Papierrolle für fliegenden Rollenwechsel - Google Patents

Verfahren und Vorrichtung zur Vorbereitung einer Papierrolle für fliegenden Rollenwechsel Download PDF

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Publication number
EP1041025A2
EP1041025A2 EP00810224A EP00810224A EP1041025A2 EP 1041025 A2 EP1041025 A2 EP 1041025A2 EP 00810224 A EP00810224 A EP 00810224A EP 00810224 A EP00810224 A EP 00810224A EP 1041025 A2 EP1041025 A2 EP 1041025A2
Authority
EP
European Patent Office
Prior art keywords
web
adhesive surface
adhesive
paper
roll
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.)
Withdrawn
Application number
EP00810224A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1041025A3 (de
Inventor
Karl-Heinz Rüede
Cornelis Heijkoop
Walter Brändli
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.)
VR Systems AG
Original Assignee
VR Systems AG
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 VR Systems AG filed Critical VR Systems AG
Publication of EP1041025A2 publication Critical patent/EP1041025A2/de
Publication of EP1041025A3 publication Critical patent/EP1041025A3/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/102—Preparing the leading end of the replacement web before splicing operation; Adhesive arrangements on leading end of replacement web; Tabs and adhesive tapes for splicing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/417—Handling or changing web rolls
    • B65H2301/4176—Preparing leading edge of replacement roll
    • B65H2301/41766—Preparing leading edge of replacement roll by adhesive tab or tape with cleavable or delaminating layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/46—Splicing
    • B65H2301/4602—Preparing splicing process
    • B65H2301/46022—Preparing splicing process by detecting mark on rotating new roll and/or synchronize roll with trailing web speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/46—Splicing
    • B65H2301/4606—Preparing leading edge for splicing
    • B65H2301/46064—Preparing leading edge for splicing by transversally operated carriage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/46—Splicing
    • B65H2301/4606—Preparing leading edge for splicing
    • B65H2301/4607—Preparing leading edge for splicing by adhesive tape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/46—Splicing
    • B65H2301/4606—Preparing leading edge for splicing
    • B65H2301/4607—Preparing leading edge for splicing by adhesive tape
    • B65H2301/46072—Preparing leading edge for splicing by adhesive tape inserted between leading edge and wound web roll
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/46—Splicing
    • B65H2301/4606—Preparing leading edge for splicing
    • B65H2301/46078—Preparing leading edge for splicing the adhesive tab or tab having a cleavable or delaminating layer

Definitions

  • the invention relates to a method for preparing a Paper roll for flying roll change according to the Preamble of claim 1 and a device for Execution of the method according to the preamble of Claim 8. Such methods and devices arrive used in roll cellars of printing companies.
  • Adhesive tapes available (e.g. Flying Splice System 551 the ASS-label GmbH), which consists of an outer band and a Inner band exist, which are arranged one above the other and separable are connected.
  • the inner band is with an inner one Adhesive surface for connection to the next lower layer provided, while the outer tape an outer adhesive surface for connection to the web end and the remaining roll.
  • the invention is based on the object of a method indicate with which tapes the one described above new way in a simple way, possibly fully automatically the paper roll can be attached. This task will solved by the features in the characterizing part of claim 1. In addition, a device should be specified that suitable for performing the method. This task will solved by the features in the characterizing part of claim 8.
  • Paper roll 1 prepared for printing press comprises one Paper web 2, usually on a cardboard roll core is wound up.
  • the end of the paper web 2 forms one End of web 3, the z. B. essentially straight and light runs obliquely to the longitudinal direction of the paper web 2.
  • the Web end edge 3 is by means of an adhesive tape 4, which is extends at least approximately over its entire length, with the next lower layer of the paper web 2 connected, that too serves to connect the paper roll with the remaining roll.
  • the adhesive tape 4 consists of an inner band 5 and a slightly narrower one here Outer band 6, which lie one on top of the other and are separably connected are.
  • the connection that extends over the entire inner surface the outer band 6 extends, is by gluing on the whole of said inner surface distributed points guaranteed.
  • the outer band 6 can be a strip Metal foil, e.g. B. include aluminum foil by a Detector can be found.
  • the inside of the inner band 5 forms an inner one Adhesive surface 7 of the adhesive tape 4 with in the usual area lying initial liability, which with the next lower layer the paper web 2 is glued, while the outside of the Outer tape 6 an outer adhesive surface of the adhesive tape 4th with high initial adhesion, of which one Edge strips 8 along the entire length of the adhesive tape 4 a strip of the adjoining the end of the web 3 Inner surface of the paper web 2 is glued, so that the same through the adhesive tape 4 at the next lower layer of the Paper web 2 is held.
  • Next to the edge strip 8 remains at the end of the web 3, to the Edge strips 8 parallel over the entire length of the adhesive tape 4 extending adhesive strip 9 free, which serves to flying roll change the paper web 2 with a Paper web 10 (Fig. 3b) to connect by a Residual roll is deducted.
  • the adhesive tape 4 is interrupted by a short recess.
  • the end 3 of the web there has a concave recess section 11, on which the end 3 of the web follows approximately a sin 2 curve.
  • the tape 4 extends without Interruption across the entire roll width.
  • the Adhesive strip 9 is in a position and Extension of the cutout section 11 in FIG. 1 corresponding section by a cover sheet 12, z. B. from Paper, covered with a non-sticky outer surface.
  • the Cover sheet 12 can, however, be distributed over its area Places are punched so that at these places at high Contact pressure but an adhesive effect occurs.
  • the clamped paper roll is removed using a driven belt that is pressed against the outside, accelerates.
  • the belt touches the outside of the Paper web 2 along a circumferential contact strip 13 (Fig. 1, 2), which the web end edge 3 in the area of Cutout section 11 or the cover sheet 12 crosses that the adhesive strip 9 does not stick to the belt can occur.
  • the adhesive tape 4 holds during this phase the web end edge 3 at the next lower position and prevents unwinding of the paper web 2.
  • the paper web 2 and the paper web 10 are thus through Outer band 6 connected by the inside of the former with the edge strip 8 and the inside of the latter with the adhesive strip 9 adjoining the same, the together form the outer adhesive surface, are glued.
  • the Inner band 5 remains at the next lower layer of the paper web 2 stick. Its outer surface unfolds, just like that Inner surface of the outer band 6, no more adhesive effect, see above that no risk of unwanted gluing and from it following web winder exists.
  • the device for preparing the paper roll includes in its basic structure (Fig. 5-7) is a lifting device 14 with two mutually displaceable cones 15a, b, which in the ends of the core of the paper roll 1, the z. B. on one Trolley 16 is brought to the device, introduced can be and so as a recording device for the Serve paper roll 1.
  • first flap 20 attached to a just below the contact surface 19 transverse first pivot axis from a horizontal Location can be folded down. She wears a first one Adhesive surface 21, which is in the horizontal position of the first Flap 20 is in an operating position in which it is after points above.
  • a second flap 22 is just above one the bearing surface 19 lying to the first pivot axis parallel second swivel axis from a horizontal position can be folded back upwards. It has a second adhesive surface 23, which is in the horizontal position of the second flap 22nd is in a takeover and deployment position in which she points down. On the adhesive surfaces 21, 23 to vacuum is applied close to its edge.
  • the second flap 22 is of a slightly inclined limited rear edge, which if both flaps are in horizontal position, over a sloping Plastic strip 24 is located, which is the first adhesive surface 21 interrupts.
  • the device (Fig. 9a, b) has one Cutting device 25, which is above the rear Edge of the first flap 20 is arranged. It includes one Cross rail 26, on which a short Longitudinal rail 27 is suspended, which in turn one by one vertical axis pivotable knife 28 with a driven cutting disc 29 carries.
  • the Cutting device 25 can be cut along a cutting line 30 (FIG. 10) which are essentially the rear Edge of the second flap 22 follows and over the Plastic strip 24 runs.
  • the device comprises an adhesive device 31 (Fig. 13a, b), which by a linear module 32 along the Section line 30 is displaceable. It includes one Supply roll 33 for receiving the adhesive tape 4, the inner adhesive surface 7 still covered here by a cover tape 34 is, a take-up roller 35 arranged next to the same for Recording of the shroud 34 and one between them Guide roller 36 and one from the position shown retractable pressure roller 37 and a pair of pinch rollers 38. Behind the pressure roller 37 is a slightly vertical Slidable band holder 39 is arranged. At about the height the pressure roller 37 is also a scissor-like Cutting device 40 provided the two horizontal blades comprises a fixed blade 41 and one around one vertical axis pivotable blade 42.
  • the device (Fig. 16) has one and above the bearing surface 19 attached drivable Roller brush 43, the bristles of mane hair from Horses are made.
  • the device as described above is suitable for paper roll preparation according to a first Embodiment of the inventive method, as in the following is described:
  • the device automatically adjusts to it - the front edge of the unwind table 17 just touched, (Fig. 8a, b) by turning the same in Direction of arrow a web section 44 unwound and by means of the conveyor 18 against the rear end of the unwind table 17 transported so that it doesn't just cover the whole Length of the support surface 19 extends, but also over the first adhesive surface 21, over the end of which he more or less protrudes far.
  • the first flap 20 is located in a horizontal position with the first adhesive surface 21 in one Operating position, while the second flap 22 in a vertical position is folded up. Then the first one Sticky area 21 turned on, d. H. it becomes one at the same Creates negative pressure through which the inside of the Track section 44 held on the first adhesive surface 21 becomes.
  • the cutting device 25 is used (FIGS. 9a, b) and the knife 28 is moved along the cutting line 30, the cutting disc 29 against the plastic strip 24 is pressed and an end portion of the web portion 44 separates.
  • the end of the web 3 (Fig. 10) with the Recess section 11 made.
  • the knife 28 will guided during the cut so that the axis of the Cutting disc 29 always, so also during Recess section 11 is made perpendicular to current cutting direction.
  • the second adhesive surface 23 is switched off and (Fig. 16) the web section 44 by rotating the paper roll 1 in the direction of the arrow with the corresponding movement of the Funds 18 withdrawn from the bearing surface 19 and rewound on paper roll 1.
  • the inner adhesive surface 7 of the adhesive tape 4 by the action of rotated against the direction of rotation of the paper roll 1 Roller brush 43 pressed to the next lower position. Since the inner adhesive surface 7 of the adhesive tape 4 only in the usual way Has initial liability in the area, so not very much sticks quickly, exists when the Track section 44 no risk of sticking to the Contact surface 19. With a suitable design of the roller brush 43 - e.g. B. as described above - but also occur on the outer adhesive surface despite its high initial adhesion no difficulties.
  • the prepared paper roll 1 can now by the lifting device 14 on the trolley 16th be filed.
  • FIG. 17a, b is a settling device 45 provided with an arranged next to the unwind table 17 Cover sheet container 46 for receiving a stack of Cover sheets 12 and a settling device 47 with one Suction cups provided suction plate 48 by the Cover sheet container 46 movable to a cover sheet holder 49 which is on the second flap 22 along the rear Edge of the same - to allow adjustment to different roll widths can be moved - is suspended. He forms a cover sheet adhesive surface 50 which is connected to the second Adhesive surface 23 connects.
  • the knife 28 not to be pivotable about a vertical axis, since none Recess section is created and the cutting line therefore is straight. Otherwise the suspension of the knife 28 u. U. be simplified.
  • the two embodiments of the inventive Process differ only in type and Way, like gluing the strap with which the prepared paper roll to the required speed brought, is prevented. It is of course possible train the device so that this applies to both first as well as the second way can be done by both the knife in terms of putting on the Recess section is pivotally suspended as well a settling device and a cover sheet holder are provided are.
  • the web section 44 is after Production of the web end edge 3 by approximately 180 ° upwards bent back and then the tape 4 attached.
  • the Attachment of the adhesive tape 4 then takes place from above, which is the Process facilitated, especially if he, for. B. because of a Fault that must be carried out manually.
  • the guiding surface 51 has the shape of a cylinder jacket sector, the axis of which with the second axis about which the second flap 22 ' can be folded back, coincides.
  • the second axis is displaceable parallel to the bearing surface 19 and such stored so that when the second Flap 22 'around the product of the radius of the guide surface 51 the angle of rotation in radian measure over the contact surface 19 moved back as if the guide surface 51 rolled up the same.
  • the adhesive tape 4 is attached (FIGS. 21a, b) basically exactly the same as detailed above described. It can be described according to both Embodiments are proceeded. Attaching the Adhesive tape 4 is not made from below, but from above. This makes it easier to control the location of the Adhesive tape 4. Above all, however, is its attachment much easier if, for. B. due to a failure or a malfunction of the gluing device 31, manually must be made. After attaching the tape 4, the second flap 22 'becomes 180 ° again folded back so that the second adhesive surface 23 again their Takes over position. After it is turned off the same as described above proceeded and the preparation of the paper roll completed.
  • the end of the web can be different described, e.g. B. not obliquely, but perpendicular to Longitudinal direction of the paper web 2 are created.
  • the Roll table can have a surface instead of funding highly sliding material such as B. Teflon®.
  • the Cutting device can instead of a cutting disc Have a cutting stylus or a roller knife. Also Crush cut or laser cutting are possible.
EP00810224A 1999-03-31 2000-03-16 Verfahren und Vorrichtung zur Vorbereitung einer Papierrolle für fliegenden Rollenwechsel Withdrawn EP1041025A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH61699 1999-03-31
CH61699 1999-03-31

Publications (2)

Publication Number Publication Date
EP1041025A2 true EP1041025A2 (de) 2000-10-04
EP1041025A3 EP1041025A3 (de) 2001-08-29

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EP00810224A Withdrawn EP1041025A3 (de) 1999-03-31 2000-03-16 Verfahren und Vorrichtung zur Vorbereitung einer Papierrolle für fliegenden Rollenwechsel

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EP (1) EP1041025A3 (th)
KR (1) KR20010014667A (th)
CA (1) CA2303506A1 (th)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002102694A1 (en) * 2001-06-15 2002-12-27 3M Innovative Properties Company Method and apparatus for automatically applying a flying splicing tape to a roll of sheet material
EP1283184A2 (de) * 2001-08-10 2003-02-12 MAN Roland Druckmaschinen AG Verfahren und Vorrichtung zur Vorbereitung einer Vorratspapierbahnrolle für den fliegenden Rollenwechsel
WO2003018451A1 (de) * 2001-08-29 2003-03-06 Tesa Ag Maschinell erkennbares klebeband
EP1422174A1 (de) * 2002-10-14 2004-05-26 Metso Paper AG Verfahren und Vorrichtung zur Vorbereitung einer Papierrolle für fliegenden Rollenwechsel
US6814123B2 (en) 2001-12-21 2004-11-09 3M Innovative Properties Company Method and apparatus for applying a splicing tape to a roll of sheet material
DE102006003200A1 (de) * 2006-01-24 2007-08-02 Bhs Corrugated Maschinen- Und Anlagenbau Gmbh Verfahren zum Splicen von Material-Bahnen und Splice-Vorrichtung
EP1816097A3 (de) * 2004-02-19 2008-06-11 Koenig & Bauer Aktiengesellschaft Vorrichtungen zum Vorbereiten einer aus einer Materialbahn gewickelten Vorratsrolle für einen fliegenden Rollenwechsel
DE102007048280A1 (de) 2007-10-08 2009-04-09 Tesa Ag Klebeband für den fliegenden Rollenwechsel
CN105502045A (zh) * 2016-01-12 2016-04-20 太原向明机械制造有限公司 带式输送机液压双卷带装置
CN109790928A (zh) * 2016-10-13 2019-05-21 Cqlt萨固密技术有限公司 用于制备用于加工成密封件的条带材料的方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB481743A (en) * 1936-09-16 1938-03-16 Hoe & Co R Method of and means for preparing a web roll for use in web renewing mechanism for printing machines
DE3834334A1 (de) * 1988-10-08 1990-04-12 Voith Gmbh J M Bearbeitungseinrichtung zur vorbereitung des bahnendes einer rolle einer warenbahn
WO1997049628A1 (de) * 1996-06-25 1997-12-31 Koenig & Bauer Ag Klebeetikett
EP0819639A2 (en) * 1996-07-17 1998-01-21 Fuji Photo Film Co., Ltd. Web splicing preparation method and apparatus
DE19632689A1 (de) * 1996-08-14 1998-02-19 Beiersdorf Ag Klebeband und Verfahren zu seiner Verwendung
JPH10120259A (ja) * 1996-10-15 1998-05-12 Kaneda Kikai Seisakusho:Kk 巻取紙の紙継ぎ用前処理方法及びその装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB481743A (en) * 1936-09-16 1938-03-16 Hoe & Co R Method of and means for preparing a web roll for use in web renewing mechanism for printing machines
DE3834334A1 (de) * 1988-10-08 1990-04-12 Voith Gmbh J M Bearbeitungseinrichtung zur vorbereitung des bahnendes einer rolle einer warenbahn
WO1997049628A1 (de) * 1996-06-25 1997-12-31 Koenig & Bauer Ag Klebeetikett
EP0819639A2 (en) * 1996-07-17 1998-01-21 Fuji Photo Film Co., Ltd. Web splicing preparation method and apparatus
DE19632689A1 (de) * 1996-08-14 1998-02-19 Beiersdorf Ag Klebeband und Verfahren zu seiner Verwendung
JPH10120259A (ja) * 1996-10-15 1998-05-12 Kaneda Kikai Seisakusho:Kk 巻取紙の紙継ぎ用前処理方法及びその装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 10, 31. August 1998 (1998-08-31) -& JP 10 120259 A (KANEDA KIKAI SEISAKUSHO:KK), 12. Mai 1998 (1998-05-12) *

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002102694A1 (en) * 2001-06-15 2002-12-27 3M Innovative Properties Company Method and apparatus for automatically applying a flying splicing tape to a roll of sheet material
US6808581B2 (en) 2001-06-15 2004-10-26 3M Innovative Properties Company Method and apparatus for automatically applying a flying splicing tape to a roll of sheet material
EP1283184A2 (de) * 2001-08-10 2003-02-12 MAN Roland Druckmaschinen AG Verfahren und Vorrichtung zur Vorbereitung einer Vorratspapierbahnrolle für den fliegenden Rollenwechsel
EP1283184A3 (de) * 2001-08-10 2005-05-11 MAN Roland Druckmaschinen AG Verfahren und Vorrichtung zur Vorbereitung einer Vorratspapierbahnrolle für den fliegenden Rollenwechsel
WO2003018451A1 (de) * 2001-08-29 2003-03-06 Tesa Ag Maschinell erkennbares klebeband
US6814123B2 (en) 2001-12-21 2004-11-09 3M Innovative Properties Company Method and apparatus for applying a splicing tape to a roll of sheet material
EP1422174A1 (de) * 2002-10-14 2004-05-26 Metso Paper AG Verfahren und Vorrichtung zur Vorbereitung einer Papierrolle für fliegenden Rollenwechsel
US6805765B1 (en) 2002-10-14 2004-10-19 Metso Paper Ag Method and apparatus for the preparation of a paper reel for flying reel change
EP1816097A3 (de) * 2004-02-19 2008-06-11 Koenig & Bauer Aktiengesellschaft Vorrichtungen zum Vorbereiten einer aus einer Materialbahn gewickelten Vorratsrolle für einen fliegenden Rollenwechsel
DE102006003200A1 (de) * 2006-01-24 2007-08-02 Bhs Corrugated Maschinen- Und Anlagenbau Gmbh Verfahren zum Splicen von Material-Bahnen und Splice-Vorrichtung
DE102007048280A1 (de) 2007-10-08 2009-04-09 Tesa Ag Klebeband für den fliegenden Rollenwechsel
US9796886B2 (en) 2007-10-08 2017-10-24 Tesa Se Adhesive tape for a flying roll change
CN105502045A (zh) * 2016-01-12 2016-04-20 太原向明机械制造有限公司 带式输送机液压双卷带装置
CN109790928A (zh) * 2016-10-13 2019-05-21 Cqlt萨固密技术有限公司 用于制备用于加工成密封件的条带材料的方法
CN109790928B (zh) * 2016-10-13 2022-02-15 Cqlt萨固密技术有限公司 用于加工成密封件的条带材料及其制备方法

Also Published As

Publication number Publication date
CA2303506A1 (en) 2000-09-30
EP1041025A3 (de) 2001-08-29
KR20010014667A (ko) 2001-02-26

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