NL7707355A - Nonwoven filtration and drainage felts - of synthetic fibres and resin binder, have higher water transmission at the core than at the surface, useful e.g. for land drainage - Google Patents

Nonwoven filtration and drainage felts - of synthetic fibres and resin binder, have higher water transmission at the core than at the surface, useful e.g. for land drainage

Info

Publication number
NL7707355A
NL7707355A NL7707355A NL7707355A NL7707355A NL 7707355 A NL7707355 A NL 7707355A NL 7707355 A NL7707355 A NL 7707355A NL 7707355 A NL7707355 A NL 7707355A NL 7707355 A NL7707355 A NL 7707355A
Authority
NL
Netherlands
Prior art keywords
felts
core
drainage
useful
esp
Prior art date
Application number
NL7707355A
Other languages
Dutch (nl)
Original Assignee
Akzo Nv
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 Akzo Nv filed Critical Akzo Nv
Priority to NL7707355A priority Critical patent/NL7707355A/en
Publication of NL7707355A publication Critical patent/NL7707355A/en

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
    • D04H1/435—Polyesters
    • 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
    • D04H1/58—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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

Nonwoven fabric felts for use as filters and draining materials comprises synthetic staple fibres and/or filaments bonded with a separate binder, such that the water transmission of the felt is greater at the core than at the surface. The felts are less sensitive to the type of material to be drained and the amt. of water to be transmitted than prior art felts of this type with a homogeneous structure. The felt is e.G. of polyester or polyamide fibres with a styrene-butadiene copolymer or polyamide fibres with a binder. The felt density in the core may be less than at the surface, or (pref.) the binder content of the core zone may be less than that in the surface layers. Pref. the binder content in the core zone is 0.2-5 wt. % esp. 0.5-3.5 wt. % and that in the surface areas is 6-35 wt. % esp. 9-25 wt. %. The core zone is e.g. 1-3mm. thick and the neighbouring surface layers are each 1-3mm. thick. The felts are esp. useful for land drainage purposes, for passage of the water present in the soil in an upwards or downwards direction. The material may be mounted e.g. as separate strips 5-50cm. wide introduced into vertical holes 1-50m. deep bored into the ground.
NL7707355A 1977-07-04 1977-07-04 Nonwoven filtration and drainage felts - of synthetic fibres and resin binder, have higher water transmission at the core than at the surface, useful e.g. for land drainage NL7707355A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7707355A NL7707355A (en) 1977-07-04 1977-07-04 Nonwoven filtration and drainage felts - of synthetic fibres and resin binder, have higher water transmission at the core than at the surface, useful e.g. for land drainage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7707355A NL7707355A (en) 1977-07-04 1977-07-04 Nonwoven filtration and drainage felts - of synthetic fibres and resin binder, have higher water transmission at the core than at the surface, useful e.g. for land drainage

Publications (1)

Publication Number Publication Date
NL7707355A true NL7707355A (en) 1979-01-08

Family

ID=19828823

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7707355A NL7707355A (en) 1977-07-04 1977-07-04 Nonwoven filtration and drainage felts - of synthetic fibres and resin binder, have higher water transmission at the core than at the surface, useful e.g. for land drainage

Country Status (1)

Country Link
NL (1) NL7707355A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6804922B1 (en) 1998-06-03 2004-10-19 Construction Research & Technology Gmbh Integral composite building material and uses therefor
US7699949B2 (en) 2003-12-19 2010-04-20 Saint-Gobain Technical Fabrics America, Inc. Enhanced thickness fabric and method of making same
US7902092B2 (en) 2003-12-19 2011-03-08 Basf Construction Chemicals, Llc Exterior finishing system and building wall containing a corrosion-resistant enhanced thickness fabric and method of constructing same

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6804922B1 (en) 1998-06-03 2004-10-19 Construction Research & Technology Gmbh Integral composite building material and uses therefor
US7699949B2 (en) 2003-12-19 2010-04-20 Saint-Gobain Technical Fabrics America, Inc. Enhanced thickness fabric and method of making same
US7786026B2 (en) 2003-12-19 2010-08-31 Saint-Gobain Technical Fabrics America, Inc. Enhanced thickness fabric and method of making same
US7867350B2 (en) 2003-12-19 2011-01-11 Saint Gobain Technical Fabrics America, Inc. Enhanced thickness fabric and method of making same
US7902092B2 (en) 2003-12-19 2011-03-08 Basf Construction Chemicals, Llc Exterior finishing system and building wall containing a corrosion-resistant enhanced thickness fabric and method of constructing same
US8187401B2 (en) 2003-12-19 2012-05-29 Saint-Gobain Adfors Canada, Ltd. Enhanced thickness fabric and method of making same
US8298967B2 (en) 2003-12-19 2012-10-30 Basf Corporation Exterior finishing system and building wall containing a corrosion-resistant enhanced thickness fabric

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Legal Events

Date Code Title Description
BV The patent application has lapsed