EP0685008A1 - Papiermaschinenfilz - Google Patents
PapiermaschinenfilzInfo
- Publication number
- EP0685008A1 EP0685008A1 EP94929527A EP94929527A EP0685008A1 EP 0685008 A1 EP0685008 A1 EP 0685008A1 EP 94929527 A EP94929527 A EP 94929527A EP 94929527 A EP94929527 A EP 94929527A EP 0685008 A1 EP0685008 A1 EP 0685008A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- polyamide
- paper machine
- post
- felt
- machine felt
- 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
Links
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING 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
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4326—Condensation or reaction polymers
- D04H1/4334—Polyamides
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING 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
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/498—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres entanglement of layered webs
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING 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
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
- D04H1/60—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in dry state, e.g. thermo-activatable agents in solid or molten state, and heat being applied subsequently
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING 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
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
- D04H1/64—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
- D04H1/645—Impregnation followed by a solidification process
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING 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
- D04H13/00—Other non-woven fabrics
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F7/00—Other details of machines for making continuous webs of paper
- D21F7/08—Felts
- D21F7/083—Multi-layer felts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S162/00—Paper making and fiber liberation
- Y10S162/90—Papermaking press felts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S162/00—Paper making and fiber liberation
- Y10S162/902—Woven fabric for papermaking drier section
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/10—Scrim [e.g., open net or mesh, gauze, loose or open weave or knit, etc.]
- Y10T442/184—Nonwoven scrim
- Y10T442/197—Including a nonwoven fabric which is not a scrim
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/10—Scrim [e.g., open net or mesh, gauze, loose or open weave or knit, etc.]
- Y10T442/184—Nonwoven scrim
- Y10T442/198—Coated or impregnated
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/30—Woven fabric [i.e., woven strand or strip material]
- Y10T442/3065—Including strand which is of specific structural definition
- Y10T442/3089—Cross-sectional configuration of strand material is specified
- Y10T442/3098—Cross-sectional configuration varies longitudinaly along the strand
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/30—Woven fabric [i.e., woven strand or strip material]
- Y10T442/3146—Strand material is composed of two or more polymeric materials in physically distinct relationship [e.g., sheath-core, side-by-side, islands-in-sea, fibrils-in-matrix, etc.] or composed of physical blend of chemically different polymeric materials or a physical blend of a polymeric material and a filler material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/30—Woven fabric [i.e., woven strand or strip material]
- Y10T442/3146—Strand material is composed of two or more polymeric materials in physically distinct relationship [e.g., sheath-core, side-by-side, islands-in-sea, fibrils-in-matrix, etc.] or composed of physical blend of chemically different polymeric materials or a physical blend of a polymeric material and a filler material
- Y10T442/3154—Sheath-core multicomponent strand material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/30—Woven fabric [i.e., woven strand or strip material]
- Y10T442/3146—Strand material is composed of two or more polymeric materials in physically distinct relationship [e.g., sheath-core, side-by-side, islands-in-sea, fibrils-in-matrix, etc.] or composed of physical blend of chemically different polymeric materials or a physical blend of a polymeric material and a filler material
- Y10T442/3163—Islands-in-sea multicomponent strand material
Definitions
- the invention relates in particular to a post-condensed paper machine felt made of a polyamide base fabric and a needled polyamide
- the invention further relates to a method for increasing the molecular weight of the aforementioned paper machine felts.
- Paper machine felts usually consist of a base fabric on which a pre-needled nonwoven is needled. In principle, it is also possible to use spunbonded webs instead of dry-laid nonwovens.
- DE-A-40 27 063 describes a process for the production of particularly high molecular weight polyamide fibers by post-condensation.
- the disadvantage of these post-condensed fibers is that they are difficult to process because they are very stiff due to their high molecular weights. It therefore occurs during further processing into textile surfaces, e.g. fiber damage in the needling process, in the manufacture of paper machine felts.
- the post-condensed felt according to the invention shows a significantly smaller change in the air permeability during the test compared to the felt made of post-condensed fibers, although the end value is similar for both felts. This is for paper production is advantageous because the running-in time is shortened and the felt properties change less during the running time.
- a post-condensed paper machine felt according to the invention has the required good resistance to chemicals and abrasion if it has a solution viscosity of at least 5, measured at 20 ° C. (according to DIN 53 727)
- polyamide threads of the paper machine felt post-condensed by the method according to the invention consist in particular of aliphatic or partially aromatic polyamide or copolyamide, the aliphatic being based on ⁇ -
- Aminocarboxylic acids lactams or aliphatic diamines and aliphatic dicarboxylic acids with 4 to 12 carbon atoms, and the partially aromatic based on aliphatic monomers with 4 to 12 carbon atoms.
- polyamide 4 polyamide 6, polyamide 1 1, polyamide 12, polyamide 46, polyamide 66, polyamide 610, polyamide 612, polyamide 1212, polyamide 10T and
- Polyamide 12T preferred.
- Inorganic phosphorus compounds preferably salts or esters of phosphorous acid or orthophosphoric acid or the acids themselves, are used as post-condensation catalysts, H 3 PO 4 , H 3 PO 3 ,
- Na 2 HPO 4 • 12 H 2 O, Na 2 HPO 3 • 5H 2 O and NaH 2 PO 4 are particularly preferred.
- the textile fabrics are impregnated, the catalyst content of the preferably aqueous solution being at most 0.5% by weight, preferably 0.1 to 0.3% by weight, particularly preferably 0.2% by weight, based on the amount of textile.
- the post-condensation is carried out at temperatures from 160 to 200 ° C., preferably at 170 to 90 ° C., in an inert gas atmosphere or in vacuo for 5 to 48 hours, preferably 6 to 24 hours, particularly preferably 8 to 12 hours.
- an inert gas atmosphere or in vacuo for 5 to 48 hours, preferably 6 to 24 hours, particularly preferably 8 to 12 hours.
- the process involves post-condensing the textile fabric with aqueous solutions of H 3 PO 4 or H 3 PO 3 in amounts of 0.2% by weight, based on the amount of textile to be condensed, at 180 ° C. in vacuo for 8 hours.
- the paper machine felt made of polyamide threads at 20 ° C. has a relative solution viscosity, measured as a 1% solution in 98% sulfuric acid (DIN 53 727), of at least 5, preferably at least 6, particularly preferably at least 6.5, very particularly preferably at least 7.
- the polyamide threads are in particular those made from ⁇ -aminocarboxylic acids or lactams with 4 to 1 2 carbon atoms or from aliphatic diamines and aliphatic dicarboxylic acids with 4 to 1 2 carbon atoms.
- Polyamide 4, polyamide 6, polyamide 11, polyamide 12, polyamide 46, polyamide 66, polyamide 610, polyamide 612 and polyamide 1 21 2 are preferred.
- Another embodiment comprises partially aromatic polyamides or copolyamides composed of aliphatic monomers with 4 to 12 carbon atoms and aromatic monomers with 6 to 12 carbon atoms, in particular polyamide 10T and polyamide 12T.
- a particular advantage of the invention is that, first of all, a textile structure can be produced from easy-to-process, low-viscosity polyamide threads without fiber damage, the molecular weight of which can then be reduced according to the invention to a relative level by post-condensation
- Solution viscosity in sulfuric acid is increased by at least 7, at the same time increasing the crystallinity and fixing the shape of the textile fabric.
- Air drying was post-condensed in a laboratory autoclave under vacuum at 180 ° C for 16 hours.
- the solution viscosity of this post-condensed paper machine felt was 10.5 ⁇ 0.5 in sulfuric acid.
- a paper machine felt with the dimensions 2 x 0.2 m consisting of a base fabric made of polymid 6-thread (monofilament) (r / rel 3.4) and a needled fleece as a cover layer made of polyamide 6 fibers (Grilon ® TM262R, 17 dtex, 90 mm) was impregnated with an aqueous solution of phosphorous acid (0.24%) at 98 ° C. for 30 minutes in a dyeing autoclave. The felt was then dried at 60 ° C. for 18 hours. The post-condensation was carried out in a vacuum oven at 180 ° C. for 16 hours. The analysis data of this sample (sample 2) are in the
- Sample 3 consists of a felt made of TM262R.
- Sample 4 consists of a felt made of TM262R, the fibers being post-condensed (30 minutes, 98 ° C.; 16 hours, 180 ° C., vacuum) relative viscosity of the fibers 7.8.
- the felt was impregnated in a dyeing autoclave at 98 ° C for 30 minutes with 0.24% acid solution. Then it was dried at 60 ° C for 1 8 hours. The post-condensation was carried out in a vacuum oven at 180 ° C. for 16 hours (see Example 2).
- the relative viscosities of the fibers and the monofilaments were measured in 1% sulfuric acid.
- the felts were tested on the FTP-EMS felt test press.
- a test felt of 2 x 0.2 m is clamped in two collets.
- the collets are connected to each other by a rope under the machine and are pulled back and forth during the test.
- the test consists of the sub-steps, pressure test, pressure test with high-pressure shower and abrasion test.
- the felt is moved back and forth using a pair of pressure rollers (Fig. 2a).
- the felt is continuously wetted throughout the test before and after the press nip.
- the line pressure of the pressure roller pair can be set between 0 and 300 kN / m.
- the felt is wetted with an oscillating high-pressure shower (water pressure 40 bar) before and after the press nip (Fig. 2b).
- the influence of the high-pressure shower is assessed optically and the fibers worked out, which are collected in a filter, are weighed.
- a "ceramic strip imitation roller” is used (Fig. 3). Gaps are milled in the transverse direction on this roller, so that the remaining webs have the shape of suction strips.
- the felt pattern is pulled back and forth by the cable under the fast-running abrasion roller. The behavior of the felts against abrasion is assessed microscopically and by measuring the amount of fiber rubbed off. Test procedure
- Treatments A to F are carried out in succession on a test specimen.
- the felt thickness, air permeability and fiber loss are then measured in comparison to the untreated sample.
- Table 1 shows the results of the samples processed with the felt test press.
- the thickness of the post-condensed felt (sample 2) changes due to the
- Sample 2 has the greatest thickness after the test.
- the air permeability of the standard felts (samples 3 and 4) is higher compared to the post-condensed felt (sample 2) both in the unfixed and in the fixed state.
- sample 2 The change in air permeability due to the treatment on the felt test press is smallest in the post-condensed felt (sample 2), i.e. Sample 2 has the most uniform properties over the entire test cycle.
- the fiber loss of the comparative felts is significantly higher than that of the post-condensed felt (sample 2, 21 g / m 2 ).
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
Description
Claims
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4343067 | 1993-12-16 | ||
DE4343067 | 1993-12-16 | ||
DE4434898 | 1994-09-29 | ||
DE4434898A DE4434898C2 (de) | 1993-12-16 | 1994-09-29 | Nachkondensierter Papiermaschinenfilz aus Polyamid-Grundgewebe sowie Verfahren zu seiner Herstellung |
PCT/EP1994/003337 WO1995016810A1 (de) | 1993-12-16 | 1994-10-10 | Papiermaschinenfilz |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0685008A1 true EP0685008A1 (de) | 1995-12-06 |
EP0685008B1 EP0685008B1 (de) | 1998-05-20 |
Family
ID=25932161
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94929527A Expired - Lifetime EP0685008B1 (de) | 1993-12-16 | 1994-10-10 | Papiermaschinenfilz |
Country Status (7)
Country | Link |
---|---|
US (1) | US5783501A (de) |
EP (1) | EP0685008B1 (de) |
JP (1) | JPH08506863A (de) |
AT (1) | ATE166400T1 (de) |
CA (1) | CA2156294C (de) |
FI (1) | FI105836B (de) |
WO (1) | WO1995016810A1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19930464C1 (de) * | 1999-07-01 | 2000-10-19 | Heimbach Gmbh Thomas Josef | Papiermaschinenfilz |
DE10144307A1 (de) * | 2001-09-10 | 2003-03-27 | Bayer Faser Gmbh | Trägergewebe für Papiermaschinenbespannungen |
US7514030B2 (en) * | 2002-12-30 | 2009-04-07 | Albany International Corp. | Fabric characteristics by flat calendering |
JP4454408B2 (ja) * | 2004-06-25 | 2010-04-21 | イチカワ株式会社 | 抄紙用フェルト |
DE102005030774A1 (de) * | 2005-07-01 | 2007-01-11 | Voith Patent Gmbh | Papiermaschinenbespannung |
DE102007028365A1 (de) | 2007-06-15 | 2008-12-18 | Voith Patent Gmbh | Pressfilz |
KR101549277B1 (ko) | 2007-10-17 | 2015-09-01 | 인비스타 테크놀러지스 에스.에이 알.엘. | 초고분자량 폴리아미드 필라멘트의 제조 |
DE102007055801A1 (de) * | 2007-12-21 | 2009-06-25 | Voith Patent Gmbh | Band für eine Maschine zur Herstellung von Bahnmaterial und Verfahren zur Herstellung eines derartigen Bands |
DE102007055902A1 (de) * | 2007-12-21 | 2009-06-25 | Voith Patent Gmbh | Band für eine Maschine zur Herstellung von Bahnmaterial |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8709067D0 (en) * | 1987-04-15 | 1987-05-20 | Albany Int Corp | Monofilaments |
DE4027063C2 (de) * | 1990-08-27 | 1994-02-03 | Inventa Ag | Verfahren zur Herstellung von besonders hochmolekularen Polyamidfasern sowie nach diesem Verfahren herstellbare Polyamidfasern |
DE4226592A1 (de) * | 1991-08-23 | 1993-03-04 | Inventa Ag | Papiermaschinenfilze und verfahren zur herstellung derselben |
-
1994
- 1994-10-10 CA CA 2156294 patent/CA2156294C/en not_active Expired - Fee Related
- 1994-10-10 EP EP94929527A patent/EP0685008B1/de not_active Expired - Lifetime
- 1994-10-10 JP JP51648094A patent/JPH08506863A/ja active Pending
- 1994-10-10 WO PCT/EP1994/003337 patent/WO1995016810A1/de active IP Right Grant
- 1994-10-10 AT AT94929527T patent/ATE166400T1/de not_active IP Right Cessation
- 1994-10-10 US US08/505,206 patent/US5783501A/en not_active Expired - Fee Related
-
1995
- 1995-08-16 FI FI953875A patent/FI105836B/fi active
Non-Patent Citations (1)
Title |
---|
See references of WO9516810A1 * |
Also Published As
Publication number | Publication date |
---|---|
US5783501A (en) | 1998-07-21 |
CA2156294A1 (en) | 1995-06-22 |
ATE166400T1 (de) | 1998-06-15 |
FI953875A (fi) | 1995-08-16 |
JPH08506863A (ja) | 1996-07-23 |
EP0685008B1 (de) | 1998-05-20 |
FI953875A0 (fi) | 1995-08-16 |
CA2156294C (en) | 2001-07-10 |
WO1995016810A1 (de) | 1995-06-22 |
FI105836B (fi) | 2000-10-13 |
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