HRP930589A2 - Web material for transport and conveyor belts and process producing the same - Google Patents

Web material for transport and conveyor belts and process producing the same Download PDF

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Publication number
HRP930589A2
HRP930589A2 HR930589A HRP930589A HRP930589A2 HR P930589 A2 HRP930589 A2 HR P930589A2 HR 930589 A HR930589 A HR 930589A HR P930589 A HRP930589 A HR P930589A HR P930589 A2 HRP930589 A2 HR P930589A2
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Croatia
Prior art keywords
transport
woven
spun
fibers
woven fabric
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HR930589A
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English (en)
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Manfred Fohst
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Lohmann Gmbh & Co Kg
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Publication of HRP930589A2 publication Critical patent/HRP930589A2/hr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/06—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by a fibrous or filamentary layer mechanically connected, e.g. by needling to another layer, e.g. of fibres, of paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
    • B65G15/30—Belts or like endless load-carriers
    • B65G15/32—Belts or like endless load-carriers made of rubber or plastics
    • B65G15/34—Belts or like endless load-carriers made of rubber or plastics with reinforcing layers, e.g. of fabric
    • 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
    • D04H1/4209—Inorganic fibres
    • D04H1/4218—Glass 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
    • D04H1/42—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
    • D04H1/42—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
    • D04H1/44—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
    • D04H1/593—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 to 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
    • D04H13/00—Other non-woven fabrics
    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/002—Inorganic yarns or filaments
    • D04H3/004—Glass yarns or filaments
    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/005—Synthetic yarns or filaments
    • D04H3/009—Condensation or reaction polymers
    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/005—Synthetic yarns or filaments
    • D04H3/009—Condensation or reaction polymers
    • D04H3/011—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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/16—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
    • 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
    • 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
    • D04H5/04—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by applying or incorporating chemical or thermo-activatable bonding agents in solid or liquid form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2433/00—Closed loop articles
    • B32B2433/02—Conveyor belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/06—Articles and bulk

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Nonwoven Fabrics (AREA)
  • Structure Of Belt Conveyors (AREA)
  • Belt Conveyors (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Laminated Bodies (AREA)
  • Manufacturing Of Multi-Layer Textile Fabrics (AREA)

Description

Izum se odnosi na materijal za traku za transportne i prijenosne trake, koji se u biti sastoji os netkanog materijala, veziva i učvršćivača. Iz DE 28 42 837 je već poznata prenosna traka koja se malo isteže, koje se malo istezanje postiže pomoću paralelnih tekstilnih pređa kao učvršćivača, koji imaju maksimalno istezanje od 20% pri 50% nominalnog opterećenja na kidanje. Kod takve prenosne trake su u biti paralelne tekstilne pređe spojene s najmanje jednim slojem iz nesređenih vlakana prošivanjem. Paralelne tekstilne pređe kao i sloj od nesređenih vlakana su obuhvaćene matricom od elastomerne polimerne smole koja ne sadrži stanice. Mješavina vlakana za netkanu tkaninu za prošivanje može se sastojati od sintetskih vlakana kao što su poliamidna, poliesterska, poliolefinska, akrilna vlakna i/ili prirodnih vlakana kao što je juta. Sloj nesređenih vlakana može se našiti na tekstilne pređe jednostrano ili obostrano.Tekstilne pređe koje se mogu upotrijebiti kao učvršćivači mogu biti poliesterske ili poliamidne pređe.
Poslije njene izrade se šivena netkana tkanina impregnira pomoću tečnog međuproizvoda, koji daje poslije sušenja i vulkaniziranja polimernu smolu bez stanica. Prvenstveno se za ovo primjenjuje disperzija nitril-butadien-kaučuka. Prenosne trake koje se sastoje iz takvog materijala imaju u usporedbi s uobičajenim tkaninama obloženim trakama manje zvučan hod i visoku čvrstoću na zasijecanje, ali ipak imaju ograničenu mogućnost primjene jer pređe ili tkanine primijenjene kao učvršćivači imaju u sebi naprezanja, koja se još pojačavaju postupkom prošivanja iglom. Ovim načinom prije svega kratke ili široke trake ne mogu se više opremiti, t.j. traka ispadne poslije nekoliko obrtaja.
Otuda je zadatak izuma stvaranje materijala za transportnu i prijenosnu traku, koji također i kod postrojenja kod kojih se teško upravlja jamči besprijekorno ponašanje pri kretanju, pri bešumnom kretanju i visoku čvrstoću na zasijecanje.
Ovaj zadatak se prema izumu rješava stavljanjem predene, netkane tkanine kao učvršćivača.
Za ovu svrhu su pogodne predene, netkane tkanine bolje pričvršćene termički, mehanički i/ili pomoću veziva i imaju kako u uzdužnom tako i u poprečnom pravcu visoku čvrstoću pri nižem istezanju. Prikladni primjeri za polimere, iz kojih je izrađena predena netkana tkanina, su poliesteri i poliamidi.
Prigodne su isto tako i netkane tkanine od staklenih vlakana.
Ograničeno je stavljanje polimera, ako oni imaju visoke čvrstoće i niska istezanja, samo time, što njihova točka topljenja ne leži u blizini temperature, pri kojoj se termički pričvršćuje ili se poslije jednostranog ili obostranog prošivanja i impregriranja pomoću veziva suši.
Tako je polipropilen manje pogodan, pošto njegovo talište leži u blizini temperature sušenja, pri kojoj se suši prošivena netkana tkanina impregnirana sa nitril-butadien-kaučukom. Predene netkane tkanine sastavljene kao nosilac čvrstoće imaju najpodesniju silu kidanja od najmanje 10 N/mm pri istezanju 1%.
Titar vlakna predene netkane tkanine leži najpodesnije kod 1 do 20 dtex-a, naročito kod 3 do 6 dtex-a.
Masa površine predene netkane tkanine iznosi 50 do 300 g/m2, prvenstveno 175 do 225 g/m2. Za dostizanje traženih vrijednosti čvrstoće na kidanje od najmanje 10 n/mm pri istezanju 1% može biti korisno da se umetnu dva ili više sloja predene netkane tkanine. Pri tom se može ušiti između pojedinačnih slojeva predene netkane tkanine mala količina nesređenih vlakana. Ovo se isto tako povoljno odražava na kasnije ponašanje kretanja trake.
Pri izradi materijala netkane tkanine prošivaju se jedan ili više slojeva predene netkane tkanine obostrano sa netkanom tkanonom nesređenih vlakana, onda se mehanički pričvršćena tkanina impregnira pomoću rastvora veziva i zatim se pri temperaturi od 150°C suši i vulkanizira.
Vezivna sredstva koja se pretpostavljaju su lateks nitril-butadien-kaučuk i/ili stirol-butadien-kaučuk. Kao vezivna sredstva mogu se staviti vodene i/ili u rastvaraču rastvorena veziva kao poliuretan, polivinil klorid, poliakrilat ili njihovi spojevi. Pri tome može iznositi odnos vlakno:vezivo prvenstveno 1:2 do 2:1, naročito se pretpostavlja 1:1 dijelova mase.
Impregrirani i sušeni materijal netkane tkanine može se za poboljšanje površine, potom na jednoj ili obje strane izgladiti pomoću brusnog papira.
Podesan materijal za traku, za izradu prijenosnih traka može biti debljine od 1,5 do 8 mm, i masu površine od 6.000 g/m2, pretpostavlja se 2.000 do 4.000 g/m2. Slike pokazuju u uzdužnom presjeku materijal za traku prema izumu. Traka (1) se sastoji od predene netkane tkanine (2) (ovdje nacrtane jednoslojno). Predena, netkana tkanina (2) je sa obe strane prošivena sa po slojem od nesređenih vlakana (3). Traka (1) (t.j. predena netkana tkanina (2) i obostrano s tim prošiveni slojevi nesređenih vlakana (3) ) su potpuno umetnuti u matricu od veziva.
Izum se prikazuje slijedećim primjerima.
Primjer 1
250 g/m2 poliesterskih vlakana, koje se sastoje iz 2 mas.-dijela 6,7 dtex-a (dužina sječenog vlakna 40 mm) 1 l mas.-dijela 17 dtex-a (dužina sječenog vlakna 60 mm) (800 pojedinačnih bodova po cm2) da se u velikoj mjeri ne događa oštećenje predene netkane tkanine. Osnovna netkana tkanina se potom impregnira sa 100 mas.-% lateksa nitril-butadien-kaučuk, kome su dodani 25mas.-% kalcijum karbonata kao punilac i 5 mas.-% sredstva za vulkaniziranje od sumpor i cink oksida, koagulira u infracrvenoj peći, ispira, odstrani voda, potom na 150°C suši i vulkanizira.
Zatim se materijal netkane tkanine pričvršćen vezivom obostrano izgladi brusnim papirom, finoće 120, tako da nastaje ravnomjerno glatka površina, debljine 5,5 mm i masa 3.500 g/m2. Proizvod ima silu kidanja od 10 N/mm pri istezanju 1 %.
Primjer 2
Između dvije termički pričvršćene poliesterske netkane tkanine sa masom od po 200 g/m2 i titrom od 4,5 dtex-a ušiju se najprije 200 g/m2 poliesterska nesređena vlakna, koja se sastoje iz 2 mas.-dijela 6,7 dtex-a (dužina sječenja 40 mm) i 1 mas.-dijela 17 dtex-a (dužina sječenja 60 mm), sa 800 pojedinačnih bodova na cm2. Ovom spoju se u drugom stupnju prišiju obostrano po 800 g/m2 poliesterska vlakna iste mješavine, isto tako sa 800 pojedinačnih bodova po cm2. Dalja obrada se vršila kao u Primjeru 1. Gotov proizvod posjeduje silu kidanja od 14 N/mm pri istezanju 1 %.

Claims (5)

1. Materijal za traku za transportne i prijenosne trake, koji se u biti sastoji od netkanog materijala, veziva i učvršćivača, naznačen time, što je nosilac čvrstoće predeni netkani materijal koji se slabo isteže sa silom kidanja od najmanje 10 N/mm pri 1% istezanju.
2. Materijal za traku za transportne i prijenosne trake prema zahtjevu 1, naznačen time, što se predeni netkani materijal sastoji od poliesterskih, poliamidnih ili staklenih vlakana.
3. Materijal za traku za transportne i prijenosne trake prema zahtjevu 1 i 2, naznačen time, što titar vlakna koja čine predeni netkani materijali, leži između 1 i 20 dtex-a, prvenstveno kod 3 do 6 dtex-a.
4. Materijal za traku za transportne i prijenosne trake prema zahtjevu 1, 2 i 3, naznačen time, što predeni netkani materijal ima masu površine od 50 do 300 g/m2, prvenstveno 175 do 225 g/m2.
5. Materijal za traku za transportne i prijenosne trake prema zahtjevu 1, 2, 3 i 4, naznačen time, što kao nosilac čvrstoće sadrži više od jednog sloja predene netkane tkanine.
HR930589A 1991-04-08 1993-03-29 Web material for transport and conveyor belts and process producing the same HRP930589A2 (en)

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DE4339709A1 (de) * 1993-11-22 1995-05-24 Mgf Gutsche & Co Gmbh Betriebs Mehrlagiges Nadelvlies, Verfahren zu seiner Herstellung und Verwendung desselben
DE10117176A1 (de) * 2001-04-06 2002-10-10 Hauni Maschinenbau Ag Transportmittel für die tabakverarbeitende Industrie

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US3616164A (en) * 1968-01-30 1971-10-26 Kurashiki Rayon Co Conveyor belt and a process for the manufacture thereof
US4154335A (en) * 1977-11-04 1979-05-15 Albany International Corp. Conveyor belting and method of manufacture
FR2511637A1 (fr) * 1981-08-24 1983-02-25 Albany Int Corp Procede de fabrication d'une courroie transporteuse, et courroie en resultant
DE3724328A1 (de) * 1987-07-22 1989-02-09 Lohmann Gmbh & Co Kg Band mit vliesstoff fuer treib- und antriebsriemen, transport- und foerderbaender

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