CA2459901A1 - Backing fabric for paper machine clothings - Google Patents
Backing fabric for paper machine clothings Download PDFInfo
- Publication number
- CA2459901A1 CA2459901A1 CA 2459901 CA2459901A CA2459901A1 CA 2459901 A1 CA2459901 A1 CA 2459901A1 CA 2459901 CA2459901 CA 2459901 CA 2459901 A CA2459901 A CA 2459901A CA 2459901 A1 CA2459901 A1 CA 2459901A1
- Authority
- CA
- Canada
- Prior art keywords
- polyamide
- monofilaments
- twisted yarn
- papermaking machine
- backing fabric
- 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.)
- Abandoned
Links
Classifications
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D7/00—Woven fabrics designed to be resilient, i.e. to recover from compressive stress
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2277/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as reinforcement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/709—Articles shaped in a closed loop, e.g. conveyor belts
- B29L2031/7092—Conveyor belts
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2211/00—Protein-based fibres, e.g. animal fibres
- D10B2211/01—Natural animal fibres, e.g. keratin fibres
- D10B2211/02—Wool
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
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- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
-
- 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]
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Paper (AREA)
- Details Of Garments (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Making Paper Articles (AREA)
Abstract
The invention relates to a backing fabric for paper machine felts based on a yarn made of polyamide 6 and polyamide 6.10, polyamide 6.11, polyamide 11 and/or polyamide 12, to monofilaments and to a method for the production thereof.
Description
~~5 ~~, -1-Backing Fabrics for Papermakin~ Machine Covering Materials The present invention relates to backing fabrics for papermaking machine felt with improved properties, preferably improved wear resistance and in particular improved dimensional stability during paper manufacture.
Processes for the production of monofilaments from thermoplastic polymers are in principle known (c.f. Handbuch der Kunststofftechnik II, C. Hanser Verlag, Munich 1986, pp. 295-319).
Paper production on modern papermaking machines involving sheet forming (forming part), mechanical dewatering (pressing part) and thermal dewatering (drying part), smoothing and rolling is known from Lehrbuch der Papier- and Kartonerzeugung (VEB Fachbuchverlag 1987, p. 190 ff).
Fabrics employed in the forming part consist predominantly of polyester monofilaments. In order to improve the abrasion resistance monofilaments of polyamides together with polyester monofilaments in an alternating pick-and-shot arrangement on the machine side are also used.
In the pressing part the basic fabrics for the pressing felt or wet pressing felt are ' produced almost exclusively from polyamide fibres and polyamide monofilaments, preferably from pure polyamide-6 but also from polyamide-66. A nonwoven layer of polyamide fibres is needled onto the base fabrics consisting of polyamide monofilaments in a second processing stage and this layer is thereby mechanically anchored in the said base fabric.
Dry screens on the other hand normally consist of polyester monofilaments that are largely stabilised by means of suitable products, for example Stabaxol (a commercial product available from Rheinchemie, Mannheim), against hydrolytic decomposition.
Processes for the production of monofilaments from thermoplastic polymers are in principle known (c.f. Handbuch der Kunststofftechnik II, C. Hanser Verlag, Munich 1986, pp. 295-319).
Paper production on modern papermaking machines involving sheet forming (forming part), mechanical dewatering (pressing part) and thermal dewatering (drying part), smoothing and rolling is known from Lehrbuch der Papier- and Kartonerzeugung (VEB Fachbuchverlag 1987, p. 190 ff).
Fabrics employed in the forming part consist predominantly of polyester monofilaments. In order to improve the abrasion resistance monofilaments of polyamides together with polyester monofilaments in an alternating pick-and-shot arrangement on the machine side are also used.
In the pressing part the basic fabrics for the pressing felt or wet pressing felt are ' produced almost exclusively from polyamide fibres and polyamide monofilaments, preferably from pure polyamide-6 but also from polyamide-66. A nonwoven layer of polyamide fibres is needled onto the base fabrics consisting of polyamide monofilaments in a second processing stage and this layer is thereby mechanically anchored in the said base fabric.
Dry screens on the other hand normally consist of polyester monofilaments that are largely stabilised by means of suitable products, for example Stabaxol (a commercial product available from Rheinchemie, Mannheim), against hydrolytic decomposition.
The commercially available press felts made from polyamide-6 monofilaments have on account of their high abrasion resistance, compressibility and very good recovery of the felts after passing through the press nip major advantages compared to press felts of other materials, e.g. polypropylene, polyester, wool or other types of polyamide (e.g. PA 6.10, PA 6.12).
A significant disadvantage of these press felts is however the lack of dimensional stability in the event of machine downtimes. The materials polyamide-6 and polyamide-66 absorb up to 10 wt.% of water in a wet environment. The length and thickness of the monofilaments changes with the absorption of water. In particular the change in length means that in the event of malfunctions or downtimes of the papermaking machine due to other causes the felts have a different weight and fabric density in the wet zones than in the dry zones. After dealing with the malfunctions and starting up the papermaking machine again no high-quality paper can be IS produced with these felts until the felts have re-established the same water content and the same density and width over the whole area.
Furthermore the change in width often means that the full working width of the papermaking machine cannot be utilised since the felts extend beyond the maximum width of the machine and are damaged at their edges.
' There has therefore been no lack of attempts to improve the dimensional stability of press felts in wet/dry cycles.
One possibility is to 'use outer fabric constructions.
The use of other materials in the warp of the fabrics is widespread, for example the replacement of polyamide-6 or polyamide-66 monofilaments by filaments which absorb substantially less moisture under high ambient moisture conditions and in which the dimensions of the fabrics consequently change only slightly.
Monofilaments of polyamide 6.10 and polyamide 6.12 have proved suitable.
A significant disadvantage of these press felts is however the lack of dimensional stability in the event of machine downtimes. The materials polyamide-6 and polyamide-66 absorb up to 10 wt.% of water in a wet environment. The length and thickness of the monofilaments changes with the absorption of water. In particular the change in length means that in the event of malfunctions or downtimes of the papermaking machine due to other causes the felts have a different weight and fabric density in the wet zones than in the dry zones. After dealing with the malfunctions and starting up the papermaking machine again no high-quality paper can be IS produced with these felts until the felts have re-established the same water content and the same density and width over the whole area.
Furthermore the change in width often means that the full working width of the papermaking machine cannot be utilised since the felts extend beyond the maximum width of the machine and are damaged at their edges.
' There has therefore been no lack of attempts to improve the dimensional stability of press felts in wet/dry cycles.
One possibility is to 'use outer fabric constructions.
The use of other materials in the warp of the fabrics is widespread, for example the replacement of polyamide-6 or polyamide-66 monofilaments by filaments which absorb substantially less moisture under high ambient moisture conditions and in which the dimensions of the fabrics consequently change only slightly.
Monofilaments of polyamide 6.10 and polyamide 6.12 have proved suitable.
A disadvantage of these fabrics and of the felt produced therefrom is however the significantly reduced wear resistance when used in papermaking machines compared to fabrics of polyamide-6 monofilaments and felts produced therefrom.
It has now surprisingly been found that the disadvantages of the lack of wear resistance can be avoided and can be replaced by the advantages of a good dimensional stability if the warp of the basic fabric consists of combination twisted yarns that contain monofilaments of polyamide-6 as well as also monofilaments of polyamide 6.10 or polyamide 6.12.
The object of the invention is achieved if in the production of the backing fabric there are used combination twisted yarns with 1 to 20 monofilaments of polyamide-6 and 20 to 1 monofilaments of polyamide 6.10, polyamide 6.12, polyamide 11 or polyamide 12 in the warp instead of twisted yarns of polyamide-monofilaments.
Moreover, the fabrics produced in this way also have a significantly improved economic utility since the raw materials polyamide-6 and polyamide-66 are industrially more readily available and can be re-used in many recycling systems after economic utilisation.
' A particular advantage of the process according to the invention is that twisted yarns of an even number of the materials used as well as also an odd number of these materials can be twisted with one another. In this way specific, calculable dimensional changes of the twisted yarns or fabrics produced therefrom can be established and the economic utility can optionally also be improved.
The following examples demonstrate the advantages according to the invention of the combination twisted yarns, without restricting the possibilities of these combinations.
It has now surprisingly been found that the disadvantages of the lack of wear resistance can be avoided and can be replaced by the advantages of a good dimensional stability if the warp of the basic fabric consists of combination twisted yarns that contain monofilaments of polyamide-6 as well as also monofilaments of polyamide 6.10 or polyamide 6.12.
The object of the invention is achieved if in the production of the backing fabric there are used combination twisted yarns with 1 to 20 monofilaments of polyamide-6 and 20 to 1 monofilaments of polyamide 6.10, polyamide 6.12, polyamide 11 or polyamide 12 in the warp instead of twisted yarns of polyamide-monofilaments.
Moreover, the fabrics produced in this way also have a significantly improved economic utility since the raw materials polyamide-6 and polyamide-66 are industrially more readily available and can be re-used in many recycling systems after economic utilisation.
' A particular advantage of the process according to the invention is that twisted yarns of an even number of the materials used as well as also an odd number of these materials can be twisted with one another. In this way specific, calculable dimensional changes of the twisted yarns or fabrics produced therefrom can be established and the economic utility can optionally also be improved.
The following examples demonstrate the advantages according to the invention of the combination twisted yarns, without restricting the possibilities of these combinations.
Examples Monofilament Commercial Product Diameter Polyamide 6 X 201 0.20 mm Polyamide 6.10 ATF 2311 0.20 mm Polyamide 6.12 ATF 23 0.20 mm Manufacturer: Bayer Faser GmbH
Pre-twisted yarns Pre-twisted yarns of construction 0.20 mm x 2 were produced on an Allma Saurer AZB-T type yarn twisting machine at 304 revolutions/metre Experimental part V 1: X 201/X 201, 0.20 mm x 2, S 304 revolutions/metre Experimental part V 2: X 201/ATF 2311, 0.20 mm x 2, S 304 revolutions/metre Experimental part V 3: ATF 2311, 0.20 mm x 2, S 304 revolutions/metre Experimental part V 4: ATF 2300 0.20 mm x 2, S 304 revolutions/metre ' Comparison example 1 Pre-twisted yarns of polyamide 6, experimental part V 1, were processed on an Allma Saurer AZB-T type yarn twisting machine to form a balanced annular twisted yarn of construction 0.2 mm x 2 x 2 with S 304/Z 260 revolutions.
The twisted yarn was then fixed tension-free in a heating cabinet for 5 minutes at 160°C and cut into pieces of length 1.00 m. The exact length and the weight of the sample pieces was determined. Following this the samples were then stored tension-free for 24 hours in a water bath at 20°C, removed from the water, dried, and the change in length as well as the weight were determined.
Pre-twisted yarns Pre-twisted yarns of construction 0.20 mm x 2 were produced on an Allma Saurer AZB-T type yarn twisting machine at 304 revolutions/metre Experimental part V 1: X 201/X 201, 0.20 mm x 2, S 304 revolutions/metre Experimental part V 2: X 201/ATF 2311, 0.20 mm x 2, S 304 revolutions/metre Experimental part V 3: ATF 2311, 0.20 mm x 2, S 304 revolutions/metre Experimental part V 4: ATF 2300 0.20 mm x 2, S 304 revolutions/metre ' Comparison example 1 Pre-twisted yarns of polyamide 6, experimental part V 1, were processed on an Allma Saurer AZB-T type yarn twisting machine to form a balanced annular twisted yarn of construction 0.2 mm x 2 x 2 with S 304/Z 260 revolutions.
The twisted yarn was then fixed tension-free in a heating cabinet for 5 minutes at 160°C and cut into pieces of length 1.00 m. The exact length and the weight of the sample pieces was determined. Following this the samples were then stored tension-free for 24 hours in a water bath at 20°C, removed from the water, dried, and the change in length as well as the weight were determined.
The twisted yarn was then dried for 24 hours at 80°C in a circulating air drying cabinet and the change in length and weight loss were again determined. This cycle was repeated three times. The changes in length between the wet/dry cycles are summarised in Table 1.
The abrasion resistance of the twisted yarns was determined by an abrasion test developed in-house. For this, the monofilaments and twisted yarns are drawn cyclically under a defined load over a grinding roller until they break. The number of grinding cycles is a measure of the abrasion resistance.
Comparison example 2 Pre-twisted yarns of polyamide 6.10 (ATF 2311), experimental part V 3, 0.20 mm were processed into an annular twisted yarn as described in comparison example 1.
The change in length after wet/dry alternating cycles as well as the abrasion resistance were also determined as described in comparison example 1. The results are summarised in Table l .
Example 1 Pre-twisted yarn V 1 and pre-twisted yarn V 2 were processed into an annular twisted yarn as described in comparison example 1. The annular twisted yarn had a proportion of PA 6.10 of 25%. The change in length after wet/dry alternating cycles as well as the abrasion resistance was also determined as described in comparison example I . The results are summarised in Table 1.
y Example 2 Pre-twisted yarn V 1 and pre-twisted yarn V 3 were processed into an annular twisted yarn as described in comparison example 1. The annular twisted yarn had a proportion of PA 6.10 of 50%. The change in length after wet/dry alternating cycles as well as the abrasion resistance was also determined as described in comparison example 1. The results are summarised in Table 1.
Example 3 Pre-twisted yarn V 2 and pre-twisted yarn V 2 were processed into an annular twisted yarn as described in comparison example 1. The annular twisted yarn had a proportion of PA 6.10 of 50%. The change in length after wetldry alternating cycles as well as the abrasion resistance was also determined as described in comparison example 1. The results are summarised in Table 1.
Example 4 Pre-twisted yarn V 3 and pre-twisted yarn V 2 were processed into an annular twisted yarn as described in comparison example 1. The annular twisted yarn had a proportion of PA 6.10 of 75%. The change in length after wet/dry alternating cycles ' as well as the abrasion resistance was also determined as described in comparison example 1. The results are summarised in Table 1.
Example 5 Pre-twisted yarn V 4 and pre-twisted yarn V 1 were processed into an annular twisted yarn as described in comparison example 1. The annular twisted yarn had a proportion of PA 6.12 of 50%. The change in length after wet/dry alternating cycles as well as the abrasion resistance was also determined as described in comparison example 1. The results are summarised in Table 1.
Table 1 Propn.Propn. Water Water Abrasion Behaviour PA PA 6.10AbsorptionElongationmin - max 6 1~ 1' Cycles Comp. Ex. 100 0 6.8 3.0 260 - 350 Comp. Ex. 0 100 2.8 1.2 220 - 290 Example 75 25 6.0 2.7 260 - 320 Example 50 50 5.2 2.0 250 - 295 Example 50 50 4.9 1.9 255 - 305 Example 25 75 3.8 1.6 225 - 290 Propn.
PA 6.12 Example 50 50 5.1 2.1 245 - 300 1' Mean value from three measurement cycles
The abrasion resistance of the twisted yarns was determined by an abrasion test developed in-house. For this, the monofilaments and twisted yarns are drawn cyclically under a defined load over a grinding roller until they break. The number of grinding cycles is a measure of the abrasion resistance.
Comparison example 2 Pre-twisted yarns of polyamide 6.10 (ATF 2311), experimental part V 3, 0.20 mm were processed into an annular twisted yarn as described in comparison example 1.
The change in length after wet/dry alternating cycles as well as the abrasion resistance were also determined as described in comparison example 1. The results are summarised in Table l .
Example 1 Pre-twisted yarn V 1 and pre-twisted yarn V 2 were processed into an annular twisted yarn as described in comparison example 1. The annular twisted yarn had a proportion of PA 6.10 of 25%. The change in length after wet/dry alternating cycles as well as the abrasion resistance was also determined as described in comparison example I . The results are summarised in Table 1.
y Example 2 Pre-twisted yarn V 1 and pre-twisted yarn V 3 were processed into an annular twisted yarn as described in comparison example 1. The annular twisted yarn had a proportion of PA 6.10 of 50%. The change in length after wet/dry alternating cycles as well as the abrasion resistance was also determined as described in comparison example 1. The results are summarised in Table 1.
Example 3 Pre-twisted yarn V 2 and pre-twisted yarn V 2 were processed into an annular twisted yarn as described in comparison example 1. The annular twisted yarn had a proportion of PA 6.10 of 50%. The change in length after wetldry alternating cycles as well as the abrasion resistance was also determined as described in comparison example 1. The results are summarised in Table 1.
Example 4 Pre-twisted yarn V 3 and pre-twisted yarn V 2 were processed into an annular twisted yarn as described in comparison example 1. The annular twisted yarn had a proportion of PA 6.10 of 75%. The change in length after wet/dry alternating cycles ' as well as the abrasion resistance was also determined as described in comparison example 1. The results are summarised in Table 1.
Example 5 Pre-twisted yarn V 4 and pre-twisted yarn V 1 were processed into an annular twisted yarn as described in comparison example 1. The annular twisted yarn had a proportion of PA 6.12 of 50%. The change in length after wet/dry alternating cycles as well as the abrasion resistance was also determined as described in comparison example 1. The results are summarised in Table 1.
Table 1 Propn.Propn. Water Water Abrasion Behaviour PA PA 6.10AbsorptionElongationmin - max 6 1~ 1' Cycles Comp. Ex. 100 0 6.8 3.0 260 - 350 Comp. Ex. 0 100 2.8 1.2 220 - 290 Example 75 25 6.0 2.7 260 - 320 Example 50 50 5.2 2.0 250 - 295 Example 50 50 4.9 1.9 255 - 305 Example 25 75 3.8 1.6 225 - 290 Propn.
PA 6.12 Example 50 50 5.1 2.1 245 - 300 1' Mean value from three measurement cycles
Claims (6)
1. Backing fabric for papermaking machine covering materials, characterised in that the base fabric of the papermaking machine covering material in the transverse direction to the run of the papermaking machine (the warp in the production of the base fabric) consists of combination twisted yarns of monofilaments produced from polyamide 6 and monofilaments of polyamide 6.10.
2. Backing fabric for papermaking machine covering materials, characterised in that the base fabric of the papermaking machine covering material in the transverse direction to the run of the papermaking machine (warp) consists of combination twisted fabrics produced from monofilaments of polyamide 6 and monofilaments of polyamide 6.12, polyamide 11 or polyamide 12.
3. Backing fabric according to claim 1, characterised in that the twisted yarns contain 1 to 20 monofilaments of polyamide 6 and 20 to 1 monofilaments of polyamide 6.10, preferably 1 to 6 monofilaments of polyamide 6 and 6 to 1 monofilaments of polyamide 6.10.
4. Backing fabric according to claim 2, characterised in that the twisted yarns contain 1 to 20, preferably 1 to 6 monofilaments of polyamide 6 and 20 to 1, preferably 6 to 1 monofilaments of polyamide 6.12, polyamide 11 or polyamide 12.
5. Backing fabric according to one of claims 1 to 4, characterised in that the monofilaments of the base fabrics have a diameter of 0.08 to 0.3 mm.
6. Process for the production of base fabrics of papermaking machine covering materials, characterised in that monofilaments of polyamide 6 are processed with monofilaments of polyamide 6.10, polyamide 6.12, polyamide 11 or polyamide 12 to form a combination twisted yarn and the combination twisted yarn is used as warp in the production of the base fabric.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10144307A DE10144307A1 (en) | 2001-09-10 | 2001-09-10 | Stable carrier web support for paper machine, has weft of twisted yarns combining specified types of nylon monofilaments |
| DE10144307.2 | 2001-09-10 | ||
| PCT/EP2002/009624 WO2003023136A1 (en) | 2001-09-10 | 2002-08-29 | Backing fabric for paper machine clothings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2459901A1 true CA2459901A1 (en) | 2003-03-20 |
Family
ID=7698343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2459901 Abandoned CA2459901A1 (en) | 2001-09-10 | 2002-08-29 | Backing fabric for paper machine clothings |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US20040259449A1 (en) |
| EP (1) | EP1432869B1 (en) |
| JP (1) | JP2005502797A (en) |
| KR (1) | KR20040039340A (en) |
| CN (1) | CN1304686C (en) |
| AT (1) | ATE338160T1 (en) |
| BR (1) | BR0212379A (en) |
| CA (1) | CA2459901A1 (en) |
| DE (2) | DE10144307A1 (en) |
| PL (1) | PL367354A1 (en) |
| WO (1) | WO2003023136A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7344074B2 (en) * | 2002-04-08 | 2008-03-18 | Nokia Corporation | Mobile terminal featuring smart card interrupt |
| US8644396B2 (en) | 2006-04-18 | 2014-02-04 | Qualcomm Incorporated | Waveform encoding for wireless applications |
| KR101124785B1 (en) | 2006-04-26 | 2012-03-23 | 콸콤 인코포레이티드 | Dynamic distribution of device functionality and resource management |
| US8406794B2 (en) | 2006-04-26 | 2013-03-26 | Qualcomm Incorporated | Methods and apparatuses of initiating communication in wireless networks |
| US8289159B2 (en) | 2006-04-26 | 2012-10-16 | Qualcomm Incorporated | Wireless localization apparatus and method |
| JP5149573B2 (en) * | 2007-09-18 | 2013-02-20 | イチカワ株式会社 | Felt for papermaking |
| JP4981826B2 (en) * | 2009-01-28 | 2012-07-25 | シャープ株式会社 | Communication system, image forming apparatus, and portable information terminal device |
| DE102009029190A1 (en) * | 2009-09-03 | 2011-03-10 | Voith Patent Gmbh | Process for recycling paper machine clothing |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2040326A (en) * | 1978-11-15 | 1980-08-28 | Scapa Porritt Ltd | Papermakers felt |
| JPS5887392A (en) * | 1981-10-08 | 1983-05-25 | 日本フエルト株式会社 | Papermaking felt and production thereof |
| JPS599239A (en) * | 1982-07-05 | 1984-01-18 | 三ツ星ベルト株式会社 | Belt fabric |
| GB8709067D0 (en) * | 1987-04-15 | 1987-05-20 | Albany Int Corp | Monofilaments |
| US5194121A (en) * | 1988-11-30 | 1993-03-16 | Nippon Felt Co. Ltd. | Needled felt for papermaking use |
| GB8927020D0 (en) * | 1989-11-29 | 1990-01-17 | Albany Research Uk | Paper machine felts |
| US5244543A (en) * | 1990-10-03 | 1993-09-14 | Asten Group, Inc. | Belt filter press fabric |
| JP2930138B2 (en) * | 1991-02-18 | 1999-08-03 | オールバニー インターナショナル コーポレイション | Improvements on paper machine cloth |
| SE9100577L (en) * | 1991-02-28 | 1992-03-16 | Scandiafelt Ab | ROUNDWOVEN FORMULATED WIRE FOR MONITORING PARTS CONSISTING OF POLYAMIDE WIRES |
| DE4226592A1 (en) * | 1991-08-23 | 1993-03-04 | Inventa Ag | PAPER MACHINE FELTS AND METHOD FOR PRODUCING THE SAME |
| CA2156294C (en) * | 1993-12-16 | 2001-07-10 | Gustav Schuetze | Paper-machine felt |
| DE19645786A1 (en) * | 1996-11-07 | 1998-05-14 | Bayer Faser Gmbh | Monofilaments and their use in the manufacture of technical textile goods |
| DE19829928C2 (en) * | 1998-07-04 | 2003-12-11 | Hahl Filaments Gmbh & Co Kg | Monofilament synthetic fibers and their use |
| IL126224A0 (en) * | 1998-09-15 | 1999-05-09 | Gerlitz Jonathan | Ear thermometer and detector therefor |
| DE19941593A1 (en) * | 1999-06-07 | 2000-12-14 | Bayer Faser Gmbh | Process for the production of a thread for technical and paper machine fabrics |
| JP2003501561A (en) * | 1999-06-07 | 2003-01-14 | バイエル ファーザー ゲゼルシャフト ミット ベシュレンクテル ハフツング | Method for producing twisted yarns for industrial fabrics and paper machine fabrics |
| US6175996B1 (en) * | 1999-07-22 | 2001-01-23 | Weavexx Corporation | Method of forming a papermakers' felt |
-
2001
- 2001-09-10 DE DE10144307A patent/DE10144307A1/en not_active Withdrawn
-
2002
- 2002-08-29 JP JP2003527190A patent/JP2005502797A/en not_active Withdrawn
- 2002-08-29 CN CNB02817562XA patent/CN1304686C/en not_active Expired - Fee Related
- 2002-08-29 US US10/489,057 patent/US20040259449A1/en not_active Abandoned
- 2002-08-29 BR BR0212379A patent/BR0212379A/en not_active IP Right Cessation
- 2002-08-29 DE DE50208019T patent/DE50208019D1/en not_active Expired - Fee Related
- 2002-08-29 WO PCT/EP2002/009624 patent/WO2003023136A1/en active IP Right Grant
- 2002-08-29 KR KR10-2004-7003477A patent/KR20040039340A/en not_active Application Discontinuation
- 2002-08-29 CA CA 2459901 patent/CA2459901A1/en not_active Abandoned
- 2002-08-29 EP EP20020772225 patent/EP1432869B1/en not_active Expired - Lifetime
- 2002-08-29 PL PL36735402A patent/PL367354A1/en not_active Application Discontinuation
- 2002-08-29 AT AT02772225T patent/ATE338160T1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EP1432869B1 (en) | 2006-08-30 |
| PL367354A1 (en) | 2005-02-21 |
| CN1553980A (en) | 2004-12-08 |
| EP1432869A1 (en) | 2004-06-30 |
| JP2005502797A (en) | 2005-01-27 |
| KR20040039340A (en) | 2004-05-10 |
| BR0212379A (en) | 2004-07-27 |
| CN1304686C (en) | 2007-03-14 |
| DE10144307A1 (en) | 2003-03-27 |
| WO2003023136A1 (en) | 2003-03-20 |
| ATE338160T1 (en) | 2006-09-15 |
| US20040259449A1 (en) | 2004-12-23 |
| DE50208019D1 (en) | 2006-10-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |