DE2150590C2 - Hydraulic filter mat made of crimped or curled man-made fibers and a needled reinforcement mat - Google Patents
Hydraulic filter mat made of crimped or curled man-made fibers and a needled reinforcement matInfo
- Publication number
- DE2150590C2 DE2150590C2 DE2150590A DE2150590A DE2150590C2 DE 2150590 C2 DE2150590 C2 DE 2150590C2 DE 2150590 A DE2150590 A DE 2150590A DE 2150590 A DE2150590 A DE 2150590A DE 2150590 C2 DE2150590 C2 DE 2150590C2
- Authority
- DE
- Germany
- Prior art keywords
- mat
- crimped
- reinforcement
- man
- needled
- 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.)
- Expired
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
- D04H1/44—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
- D04H1/45—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 forming intermeshing loops or stitches from some of the fibres
-
- 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
- D04H1/54—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 welding together the fibres, e.g. by partially melting or dissolving
- D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
- D04H1/5412—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres sheath-core
-
- 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
- D04H1/48—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 in combination with at least one other method of consolidation
- D04H1/488—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 in combination with at least one other method of consolidation in combination with bonding agents
-
- 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
- D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
- D04H5/02—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by mechanical methods, e.g. needling
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
- E02B3/122—Flexible prefabricated covering elements, e.g. mats, strips
- E02B3/126—Flexible prefabricated covering elements, e.g. mats, strips mainly consisting of bituminous material or synthetic resins
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Nonwoven Fabrics (AREA)
Description
Die Erfindung betrifft eine Wasserbaufiltermatte aus gekräuselten oder gekrollten, wasser- und chemikalienbeständigen Chemiefasern, mit einer im unteren Drittel der Filtermatte angeordneten Verstärkungsmatte in Vliesform, wobei der unterhalb der Verstärkungsmatte liegende Teil der Filtermatte aus Schlingen besteht, die beim Durchnadeln der oberen Schicht durch die Verstärkungsmatte hindurch gebildet werden. The invention relates to a hydraulic filter mat made of crimped or curled, water- and chemical-resistant Man-made fibers, with a reinforcement mat in the form of a fleece in the lower third of the filter mat, wherein the part of the filter mat lying below the reinforcement mat consists of loops which are formed in the Needling the top layer through the reinforcement mat.
Bei einer bekannten Wasserbaufiltermatte dieser Art (DE-GM 69 22 053) besteht die Verstärkungsmatte aus einem Gittergewebe oder aus Preßflor, durch die die Chemiefasern so hindurchgenadelt sind, daß die Fasern auf der Rückseite Schlingen bilden und das Gittergewebe bzw. der Preßflor im unteren Drittel der Matte eingebettet ist. Derartige Matten passen sich ohne besondere Maßnahmen den Unebenheiten des Untergrundes an.In a known hydraulic filter mat of this type (DE-GM 69 22 053), the reinforcement mat consists of one Mesh fabric or press pile, through which the man-made fibers are needled so that the fibers on Form loops on the back and the mesh fabric or the press pile embedded in the lower third of the mat is. Such mats adapt to the unevenness of the ground without special measures.
Die Verwendung von Preßflor als Verstärkungsmatte hat den Nachteil, daß dieser aus Chemiefasern besteht, die durch Bindemittel zusammengehalten sind. Bindemittel unterliegen bei längerer Wassereinwirkung einer Quellung, die anders verläuft als die der einzelnen Faser. Dadurch ergeben sich Quellungsunterschiede an den Grenzflächen von Bindemittel zur Faser, welche die Verbindung wieder auflockern.The use of pressed pile as a reinforcement mat has the disadvantage that it consists of man-made fibers that are held together by binding agents. Binding agents are subject to swelling after prolonged exposure to water, which runs differently than that of the individual fibers. This results in differences in swelling at the interfaces from binding agent to fiber, which loosen the connection again.
Die intensive Veraadelung der Fasern, die in besonderen Fällen zweimal erfolgt, hat die unangenehme Begleiterscheinung, daß es nicht zu vermeiden ist, daß die Fasern des dichten Preßflors bzw. die Fäden des Gittergewebes mehr oder weniger oft von den Nadeln vedetzt werden, so daß die Reißfestigkeit darunter leidet Die Fasern bzw. Faden können nicht hinreichend aasweichen. Die Naßfestigkeit der Verstärkungsmatte fällt daher erheblich ab.The intensive needling of the fibers, which in particular Cases takes place twice, has the unpleasant side effect, that it cannot be avoided that the fibers of the dense press pile or the threads of the lattice fabric become more or less often wounded by the needles, so that the tear resistance suffers. The fibers or threads cannot soften sufficiently. The wet strength the reinforcement mat therefore falls off considerably.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Wasserbaufiltermatte der eingangs angegebenen Art so
auszubilden, daß die Verstärkungsmatte von ihrem Aufbau her gegen langfristige Wassereinwirkungen unempfindlich
ist und den Vernadelungsprozeß infolge einer ausreichenden Verformbarkeit ohne nennenswerte Beschädigungen
übersteht
Die Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Verstärkungsmatte ein wasser- und chemikalienbeständiges
Polymer-Spinnvlies ist, bei dem die gekräuselten Fäden in noch plastischem Zustand allein durch Eigensubstanz
an den Kreuzungspunkten horizontal und vertikal fest verbunden werden, und daß das Polymer-Spinnvlies
eine Dicke von 1 mm bis 6 mm aufweistThe invention is therefore based on the object of designing a hydraulic filter mat of the type specified at the outset so that the structure of the reinforcement mat is insensitive to long-term exposure to water and withstands the needling process without significant damage due to sufficient deformability
The object is achieved according to the invention in that the reinforcement mat is a water- and chemical-resistant polymer spunbond, in which the crimped threads are firmly connected horizontally and vertically in a still plastic state solely by their own substance at the crossing points, and that the polymer spunbond has a thickness from 1 mm to 6 mm
Durch diese Ausbildung wird der Vorteil erreicht, daß
eine bleibende Festigkeit bei Beibehaltung einer genügenden Flexibilität gewährleistet ist
In der beigefügten Zeichnung ist in F i g. 1 eine Wasserbaufjltermatte
der beschriebenen Art schematisch im Schnitt dargestelltThis design has the advantage that lasting strength is ensured while maintaining sufficient flexibility
In the accompanying drawing, FIG. 1 shows a water construction mat of the type described schematically in section
Auf das Spinnvlies 1 ist bei 2 ein (Stapel-)Faservlies aufgebracht
worden, welches bei 3 so durch das Spinnvlies 1 hindurchgenadelt ist, daß die Fasern auf der Unterseite
Schlingen 4 bilden und das Ganze ein dichtes Labyrinth darstellt, welches zwar Wasser und Gase ungehindert
durchtreten läßt, Sand und andere Schwebeteilchen jedoch sicher zurückhält
Fig. 2 zeigt eine stark vergrößerte schematische Aufsieht
auf das Spinnvlies 1, aus der hervorgeht, daß die Kreuzungspunkte der einzelnen Spinnfäden 21 horizontal
und vertikal fest verbunden sind, während die dazwischenliegenden,
bogenförmigen Abschnitte 22 verformbar bleiben.On the spunbond 1 a (staple) fiber fleece has been applied at 2, which is needled through the spunbond 1 at 3 so that the fibers on the underside form loops 4 and the whole is a dense labyrinth, which although water and gases are unhindered allows it to pass through, but securely holds back sand and other suspended particles
2 shows a greatly enlarged schematic view of the spunbonded nonwoven 1, from which it can be seen that the points of intersection of the individual spun threads 21 are firmly connected horizontally and vertically, while the arcuate sections 22 lying between them remain deformable.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2150590A DE2150590C2 (en) | 1971-10-11 | 1971-10-11 | Hydraulic filter mat made of crimped or curled man-made fibers and a needled reinforcement mat |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2150590A DE2150590C2 (en) | 1971-10-11 | 1971-10-11 | Hydraulic filter mat made of crimped or curled man-made fibers and a needled reinforcement mat |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2150590A1 DE2150590A1 (en) | 1973-04-19 |
DE2150590C2 true DE2150590C2 (en) | 1982-10-14 |
Family
ID=5822024
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2150590A Expired DE2150590C2 (en) | 1971-10-11 | 1971-10-11 | Hydraulic filter mat made of crimped or curled man-made fibers and a needled reinforcement mat |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2150590C2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4431976A1 (en) * | 1993-09-13 | 1995-03-16 | Akzo Nobel Faser Ag | Erosion-protection or drainage mat |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2344253A1 (en) * | 1976-03-19 | 1977-10-14 | Fiberwoven Corp | Electric blanket fabric of needle bonded nonwovens - with spot weld patterns formed sonically or supersonically |
IT1232072B (en) * | 1989-03-31 | 1992-01-23 | Saval Srl | LOW DEFORMABILITY AND HIGH DRAINING FILTERING COMPOSITE GEOTEXTILE |
DE4015505A1 (en) * | 1990-05-15 | 1991-11-21 | Hoechst Ag | GEOTEXTILE FILTER MATERIAL |
DE4015504A1 (en) * | 1990-05-15 | 1991-11-21 | Hoechst Ag | INSERT FOR ASPHALT LAYERS |
EP1312714A1 (en) | 2001-11-14 | 2003-05-21 | Rockwool International A/S | A vibration damping system |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7039906U (en) * | 1971-02-11 | Glanzstoff Ag | Vertical drainage | |
DE6922053U (en) * | 1969-07-21 | 1969-10-23 | Naue Kg E A H | FASTENING MATS FOR DAMS, DIKE AND EMBROIDERY WITH FILTER EFFECT |
FR1601049A (en) * | 1968-12-31 | 1970-08-03 | ||
DE7029284U (en) * | 1970-08-04 | 1970-12-23 | Naue Kg E A H | DOUBLE NEEDLED CHEMICAL FIBER MAT WITH HIGH FILTER EFFECT. |
-
1971
- 1971-10-11 DE DE2150590A patent/DE2150590C2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4431976A1 (en) * | 1993-09-13 | 1995-03-16 | Akzo Nobel Faser Ag | Erosion-protection or drainage mat |
DE4431976B4 (en) * | 1993-09-13 | 2005-10-13 | Colbond Geosynthetics Gmbh | Erosion protection or drainage mat |
Also Published As
Publication number | Publication date |
---|---|
DE2150590A1 (en) | 1973-04-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
D2 | Grant after examination | ||
8363 | Opposition against the patent | ||
8320 | Willingness to grant licences declared (paragraph 23) | ||
8339 | Ceased/non-payment of the annual fee |