DE3738315A1 - Process for producing plastic sealing sheets with internal nonwoven fabric - Google Patents
Process for producing plastic sealing sheets with internal nonwoven fabricInfo
- Publication number
- DE3738315A1 DE3738315A1 DE19873738315 DE3738315A DE3738315A1 DE 3738315 A1 DE3738315 A1 DE 3738315A1 DE 19873738315 DE19873738315 DE 19873738315 DE 3738315 A DE3738315 A DE 3738315A DE 3738315 A1 DE3738315 A1 DE 3738315A1
- Authority
- DE
- Germany
- Prior art keywords
- fleece
- plastic
- calender rolls
- nonwoven fabric
- plastic sealing
- 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.)
- Withdrawn
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
- E04D5/10—Roof covering by making use of flexible material, e.g. supplied in roll form by making use of compounded or laminated materials, e.g. metal foils or plastic films coated with bitumen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
- B29C43/24—Calendering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
- B29C43/28—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/504—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC] using rollers or pressure bands
- B29C70/506—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC] using rollers or pressure bands and impregnating by melting a solid material, e.g. sheet, powder, fibres
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N5/00—Roofing materials comprising a fibrous web coated with bitumen or another polymer, e.g. pitch
-
- 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
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
-
- 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
- B29K2095/00—Use of bituminous materials as moulding material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zur Herstellung von Kunststoffabdichtungsbahnen, insbesondere aus bekannten Äthylencopolymerisat-Bitumenmischungen, wobei der Kunststoff mit Hilfe von Extrudern plasti fiziert und zwischen Kalanderwalzen zu der Abdich tungsbahn geformt und dabei mit einem Vlies oder anderen Schichten verbunden wird.The invention relates to a method for manufacturing of plastic waterproofing membranes, in particular known ethylene copolymer-bitumen mixtures, the plastic with the help of extruders plasti and between calender rolls to the seal formed with a fleece or other layers.
Kunststoffabdichtungsbahnen werden größtenteils im Extrusionsverfahren hergestellt. Hierbei wird Kunst stoffgranulat mit Zuschlägen wie beispielsweise Kohlenstaub über einen Einfülltrichter in einen Zylinder gefüllt, in dem eine Schnecke das Material fördert und zusammen mit außenliegenden Heizbändern plastifiziert und homogenisiert. Durch Breitschlitz düsen wird die Masse über ein Walzensystem aus Kalanderwalzen in die endgültige Form gebracht. Vorteilhafterweise läßt sich der Herstellungsvorgang zugleich mit einem Beschichtungsvorgang verbinden. Das geschieht in herkömmlichen Anlagen so, daß Vliese oder andere vorbereitete Schichten von der Rolle abgezogen und gleichzeitig mit im plastischen Zustand befind lichen Kunststoffbahnen zwischen die Kalanderwalzen geführt werden, welche die Abdichtungsbahn formen. Hierbei verbindet sich das Kunststoffmaterial mit dem Vlies. Das entstehende Produkt ist eine Kunststoffab dichtungsbahn mit außenliegendem Vlies.Plastic waterproofing membranes are mostly used in the Extrusion process manufactured. This is art granulate with additives such as Coal dust through a hopper into one Cylinder filled in which a snail holds the material promotes and together with external heating tapes plasticized and homogenized. Through slot the mass is sprayed out via a roller system Calender rolls brought into their final shape. The manufacturing process can advantageously be carried out combine with a coating process at the same time. The happens in conventional systems so that fleeces or other prepared layers peeled off the roll and at the same time in the plastic state plastic sheets between the calender rolls be performed, which form the waterproofing membrane. Here, the plastic material combines with the Fleece. The resulting product is a plastic sealing membrane with external fleece.
Soll eine Abdichtungsbahn mit innenliegendem Vlies erzeugt werden, so geschieht das durch Wiederholung des Herstellungsvorganges, wobei im Unterschied zu den vorhergehenden Herstellungsvorgang anstelle des alleinigen Vlieses die vorher erzeugte Abdichtungsbahn mit Vlies als Schicht zugefahren wird. Should be a waterproofing membrane with an internal fleece are generated, this is done by repetition of the manufacturing process, in contrast to the previous manufacturing process instead of sole fleece the previously created waterproofing membrane with a fleece as a layer.
Nach einem älteren Vorschlag wird eine Abdichtungsbahn mit innenliegendem Vlies oder dergleichen dadurch erreicht, daß die Kalanderwalzen in einer horizontalen Ebene angeordnet sind, das Vlies bzw. die Schicht zwischen die Kalanderwalzen geführt und beidseitig aus je einer Breitschlitzdüse mit Kunststoff beaufschlagt wird. Der ältere Vorschlag stellt zwar gegenüber dem o. b. Doublieren (Doublieren gleich zwei Verfahrens schritte) einen erheblichen Vorteil dar (nur noch ein Verfahrensschritt), weist aber auch noch einen Nach teil auf, der sich insbesondere bei relativ niedrig Viskosen-Kunststoffmassen wie z.B. Äthylencopoly merisat-Bitumengemischen auswirkt. Bedingt durch die bei der Verarbeitungstemperatur von 140 bis 150 Grad Celsius sehr niedrige Schmelzviskosität ist es schwierig, das mittig eingefahrene Vlies auch wirklich im Bahnen zentrum zu fixieren. Je nach dem, ob die beidseitig des Vlieses entstehenden Materialwülste gleich oder etwa unterschiedlich dick sind, weicht das Vlies zur einen oder anderen Seite aus und liegt somit nicht mehr im Bahnenzentrum. Das kann die Gebrauchseigen schaften der Abdichtungsbahn beeinträchtigen.According to an older proposal, a waterproofing membrane is used with internal fleece or the like achieved that the calender rolls in a horizontal Are arranged level, the fleece or the layer between the calender rolls and out on both sides one wide slot nozzle each with plastic becomes. The older proposal contrasts with that if. Doubling (duplicating two processes steps) is a significant advantage (only one Process step), but also has an after part on which is particularly low Viscose plastics such as Ethylene copoly merisat-bitumen mixtures. Due to the at the processing temperature of 140 to 150 degrees Celsius very low melt viscosity it is difficult the fleece, which is retracted in the middle, is really on track center to fix. Depending on whether the bilateral of the nonwoven material beads equal or are of different thicknesses, the fleece gives way to one side or the other and is therefore not lying more in the rail center. This can be the own use affect the waterproofing membrane.
Der Erfindung liegt die Aufgabe zugrunde, die mittige Anordnung des Vlieses in der Abdichtungsbahn zu gewährleisten. Nach der Erfindung wird das in Ab wandlung des älteren Vorschlages dadurch erreicht, daß die beiden Extruder zwischen unterschiedliche Kalander walzenpaare arbeiten. Nach der Erfindung wird die Herstellung in zwei unmittelbar hintereinander ab laufende Verfahrensschritte zerlegt, die im Unter schied zum bekannten Doublieren von Kunststoffbahnen aber trotzdem einen Verfahrensdurchlauf darstellen. D.h. nach der Erfindung wird die Herstellung an einem Kalanderwalzengerüst durchgeführt. Dazu eignet sich ein sogenanntes Triogerüst. Der eine Extruder arbeitet dann in den Spalt zwischen den Walzen 1 und 2 und der andere Extruder in den Spalt zwischen den Walzen 2 und 3.The invention has for its object to ensure the central arrangement of the fleece in the waterproofing membrane. According to the invention, the conversion from the older proposal is achieved in that the two extruders work between different pairs of calenders. According to the invention, the manufacture is broken down into two successive process steps which, in contrast to the known doubling of plastic sheets, nevertheless represent a process run. That is, according to the invention, the production is carried out on a calender roll stand. A so-called trio scaffold is suitable for this. One extruder then works in the nip between rolls 1 and 2 and the other extruder in the nip between rolls 2 and 3 .
Vorteilhafterweise können die Kalanderwalzen in der Vertikalen angeordnet sein. Das erleichtert den Aufbau der Fertigungsanlage mit den Extrudern.Advantageously, the calender rolls in the Be arranged vertically. This makes it easier to set up the production line with the extruders.
In der Zeichnung ist ein Ausführungsbeispiel der Erfindung schematisch dargestellt. Ein erfindungs gemäßes Triogerüst besteht aus vertikal übereinander angeordneten Kalanderwalzen 1, 2 und 3. Vor dem Spalt zwischen den Walzen 1 und 2 ist eine Breitschlitzdüse 4 und vor dem Spalt zwischen den Walzen 2 und 3 eine Breitschlitzdüse 5 angeordnet. Die Düsen 4 und 5 werden aus nicht dargestellten Extrudern mit plasti fiziertem Äthylencopolymer-Bitumengemisch gespeist.In the drawing, an embodiment of the invention is shown schematically. A tri-frame according to the Invention consists of calender rolls 1 , 2 and 3 arranged vertically one above the other. Before the nip between the rollers 1 and 2 a slot die 4 and before the nip between the rollers 2 and 3 a slot die 5 is arranged. The nozzles 4 and 5 are fed from extruders, not shown, with plasticized ethylene copolymer-bitumen mixture.
Im Ausführungsbeispiel wird über die Kalanderwalze 1 ein Vlies 6 oder eine andere Schicht in den Spalt zwischen die Kalanderwalzen 1 und 2 gefahren. Dort hat die Breitschlitzdüse 4 einen Rollwulst 7 erzeugt, so daß zwischen den Kalanderwalzen 1 und 2 eine Kunst stoffbahn auf dem Vlies 6 geformt wird. Dabei ver bindet sich diese Kunststoffbahn zugleich mit dem Vlies 6. Die zwischen den Kalanderwalzen 1 und 2 austretende Bahn ist mit 9 bezeichnet und wird in den Spalt zwischen die Walzen 2 und 3 gefahren, wo von der Düse 5 auf der noch unbeschichteten Vliesseite eine Rollwulst 8 erzeugt worden ist. Das Kalanderwalzenpaar 2 und 3 formt dann eine zweite Abdichtungsbahn bzw. zweite Schicht, die sich ebenso wie die erste Ab dichtungsbahn bzw. die erste Schicht mit dem Vlies 6 verbindet. Die aus dem Spalt zwischen den Kalander walzen 2 und 3 austretende Abdichtungsbahn ist mit 10 bezeichnet und besitzt ein genau mittig liegendes Vlies 6. Die Anordnung des Vlieses 6 läßt sich auch verschieben, indem die mit den Düsen 4 und 5 erzeugten Abdichtungsbahnen bzw. Schichten unterschiedlich dick gefahren werden.In the exemplary embodiment, a fleece 6 or another layer is moved over the calender roll 1 into the gap between the calender rolls 1 and 2 . There, the slot die 4 has produced a roll bead 7 , so that an art web is formed on the fleece 6 between the calender rolls 1 and 2 . This binds this plastic web at the same time with the fleece 6th The web emerging between the calender rolls 1 and 2 is designated 9 and is driven into the gap between the rolls 2 and 3 , where a roll bead 8 has been generated by the nozzle 5 on the still uncoated nonwoven side. The pair of calender rolls 2 and 3 then forms a second sealing web or second layer, which, like the first sealing web or the first layer, connects to the fleece 6 . The sealing web emerging from the gap between the calenders 2 and 3 is designated by 10 and has a fleece 6 located exactly in the center. The arrangement of the fleece 6 can also be shifted by moving the sealing sheets or layers produced with the nozzles 4 and 5 to different thicknesses.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19873738315 DE3738315A1 (en) | 1987-11-11 | 1987-11-11 | Process for producing plastic sealing sheets with internal nonwoven fabric |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19873738315 DE3738315A1 (en) | 1987-11-11 | 1987-11-11 | Process for producing plastic sealing sheets with internal nonwoven fabric |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3738315A1 true DE3738315A1 (en) | 1989-05-24 |
Family
ID=6340282
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19873738315 Withdrawn DE3738315A1 (en) | 1987-11-11 | 1987-11-11 | Process for producing plastic sealing sheets with internal nonwoven fabric |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3738315A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0400573A1 (en) * | 1989-05-29 | 1990-12-05 | Gummiwerke Becker AG | Method and apparatus for the manufacture of an endless belt coated on both sides |
DE10258353A1 (en) * | 2002-12-12 | 2004-07-08 | Berstorff Gmbh | Calender system for the production of steel cable carcass tracks |
DE10327679A1 (en) * | 2003-06-20 | 2005-01-05 | Continental Aktiengesellschaft | Calendering plant with multi-roll calender for application of rubber compound onto both sides of textile or steel cords is fed by cold feed extruders with roller heads |
EP1661682A1 (en) * | 2004-11-26 | 2006-05-31 | Comerio Ercole S.p.A. | Calendering process for fabricating a laminated ribbon of a textile fabric between silicone films |
-
1987
- 1987-11-11 DE DE19873738315 patent/DE3738315A1/en not_active Withdrawn
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0400573A1 (en) * | 1989-05-29 | 1990-12-05 | Gummiwerke Becker AG | Method and apparatus for the manufacture of an endless belt coated on both sides |
DE10258353A1 (en) * | 2002-12-12 | 2004-07-08 | Berstorff Gmbh | Calender system for the production of steel cable carcass tracks |
DE10258353B4 (en) * | 2002-12-12 | 2007-07-26 | Berstorff Gmbh | Calendering plant for the production of steel cable car tracks |
DE10327679A1 (en) * | 2003-06-20 | 2005-01-05 | Continental Aktiengesellschaft | Calendering plant with multi-roll calender for application of rubber compound onto both sides of textile or steel cords is fed by cold feed extruders with roller heads |
EP1661682A1 (en) * | 2004-11-26 | 2006-05-31 | Comerio Ercole S.p.A. | Calendering process for fabricating a laminated ribbon of a textile fabric between silicone films |
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Legal Events
Date | Code | Title | Description |
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8110 | Request for examination paragraph 44 | ||
8125 | Change of the main classification |
Ipc: B32B 31/30 |
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8130 | Withdrawal |