EP1485536B1 - Pvoh-faser als bindemittel in einem vlies - Google Patents

Pvoh-faser als bindemittel in einem vlies Download PDF

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Publication number
EP1485536B1
EP1485536B1 EP20030735782 EP03735782A EP1485536B1 EP 1485536 B1 EP1485536 B1 EP 1485536B1 EP 20030735782 EP20030735782 EP 20030735782 EP 03735782 A EP03735782 A EP 03735782A EP 1485536 B1 EP1485536 B1 EP 1485536B1
Authority
EP
European Patent Office
Prior art keywords
filaments
veil
weight
pvoh
binder
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 - Lifetime
Application number
EP20030735782
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English (en)
French (fr)
Other versions
EP1485536A2 (de
Inventor
Michel Droux
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saint Gobain Adfors SAS
Original Assignee
Saint Gobain Vetrotex France SA
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 Saint Gobain Vetrotex France SA filed Critical Saint Gobain Vetrotex France SA
Publication of EP1485536A2 publication Critical patent/EP1485536A2/de
Application granted granted Critical
Publication of EP1485536B1 publication Critical patent/EP1485536B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/10—Organic non-cellulose fibres
    • D21H13/12—Organic non-cellulose fibres from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H13/16—Polyalkenylalcohols; Polyalkenylethers; Polyalkenylesters
    • 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
    • D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/36—Inorganic fibres or flakes
    • D21H13/38—Inorganic fibres or flakes siliceous
    • D21H13/40—Inorganic fibres or flakes siliceous vitreous, e.g. mineral wool, glass fibres
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H5/00—Special paper or cardboard not otherwise provided for
    • D21H5/12—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials
    • D21H5/1245—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials of long or continuous filaments
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • 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.]
    • Y10T442/10—Scrim [e.g., open net or mesh, gauze, loose or open weave or knit, etc.]
    • Y10T442/102—Woven scrim
    • Y10T442/133—Inorganic fiber-containing scrim
    • 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.]
    • Y10T442/10—Scrim [e.g., open net or mesh, gauze, loose or open weave or knit, etc.]
    • Y10T442/102—Woven scrim
    • Y10T442/133—Inorganic fiber-containing scrim
    • Y10T442/148—Including a coating or impregnation containing particulate material other than fiber
    • 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.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2861—Coated or impregnated synthetic organic fiber fabric
    • 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.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2926—Coated or impregnated inorganic fiber fabric
    • Y10T442/2992—Coated or impregnated glass fiber fabric

Definitions

  • the invention relates to a method for producing a fiber web whose binder is derived from polyvinyl alcohol (PVOH) fibers.
  • PVOH polyvinyl alcohol
  • the veil made according to the invention can in particular be used as a surface coating ("wall covering "). For this application, it can be glued to the walls by a face using glue with water and receive a paint (water or organic solvent) on the other side.
  • haze means a nonwoven consisting of fully dispersed filaments.
  • a haze has a basis weight ranging from 10 to 60 g / m 2 and more particularly 20 to 40 g / m 2 , for example about 30 g / m 2 .
  • the manufacture of a continuous veil implies the passage of a bed of filaments dispersed by a set of several successive devices in front of each apply to said filaments a particular treatment.
  • the fiber bed after its training in a "training device”, then goes through a “training device” binder deposit “and then a” parboiling device ".
  • the transport of the bed through these devices is achieved through moving mats, and the bed is usually moved from one carpet to another.
  • the veil in formation tends to lose its cohesion, which results in structural defects of the final veil as a grammage irregular.
  • the invention overcomes the above-mentioned problems. Indeed, as the PVOH fiber initially plays the role of binder of the veil, it is not necessarily necessary to use a binder application device, which implies that the sailing has less "carpet jumps" to achieve. On the other hand, the plaintiff discovered that PVOH fibers gave the bed strength in formation, probably because the PVOH fiber gives stickiness to the different ingredients of the bed and keeps them. As a result, the bed is less damaged when jumping carpet.
  • the filaments To be dispersed in water, the filaments must be able to remain in the individual state and do not cluster together in the process water. If one disperses in the water cut threads, set of filaments, these threads must to be able to disintegrate in dispersion in water.
  • "Wire” means a set of contiguous filaments and more particularly comprising from 10 to 2000 filaments.
  • the filaments, more particularly those made of glass can be introduced into the process water in the form of wires comprising more particularly 10 to 2000 filaments.
  • the filaments that can be used in the context of the present invention generally include glass filaments and are more particularly glass filaments, which can be used during the dispersion under cut son shape.
  • the filaments may have been sized at their manufacture, to be assembled where appropriate in the form of wires, in particular by sizing liquids comprising an organosilane and / or a tackifier ("Film train" in English). It is preferable in this case not to dry filaments before dispersing them in water, so as to avoid sticking the filaments between them, which would hinder their dispersion in the state of filaments individual.
  • cut filaments in addition to glass filaments, one can also use cellulose fibers (or “cellulose filaments”) as synonym) and / or polyester filaments, especially polyethylene terephthalate (PET).
  • cellulose fibers or “cellulose filaments”
  • polyester filaments especially polyethylene terephthalate (PET).
  • Cellulose fibers are generally obtained from pulp wood. This wood pulp is usually obtained from leaves commercial cardboard that is softened with water. This water used for soften the cardboard is then used to transport the pulp towards the installation of producing the dispersion. This water / pulp mixture usually contains just enough water to be able to convey the pulp by flow. This mixture pulp / water before reaching the middle of the dispersion usually contains 70 to 99% by weight of water and 1 to 30% by weight of cellulose.
  • the filaments of polyester are usually cut and usually have a length of 3 at 25 mm and have a diameter ranging from 7 to 20 ⁇ m. As polyester filaments which can be cited are those marketed under the reference EP133 by the Kuraray society.
  • filaments cut in the context of the present invention it is used more particularly a mixture of glass filaments / cellulose fibers when we are looking for good resistance to tearing.
  • filaments cut in the context of the present invention it is used more particularly a mixture of glass filaments / polyester filaments when one is looking for a good resistance to tears and an improvement of the appearance of the veil. Indeed, the polyester filaments confer a more regular to the veil.
  • PVOH fibers are discontinuous and generally have a length ranging from 3 to 15 mm and a diameter ranging from 7 to 20 ⁇ m.
  • the cut filaments and the PVOH fibers are dispersed in water, for example in a pulper.
  • the aqueous solution in which the cut filaments and the PVOH fibers are dispersed is called process water.
  • This dispersion can be carried out in a first time in a pulper for example with a proportion of filaments and of fibers such that the sum of the mass filaments + fibers ranges from 0.01% to 0.5% by weight of the sum of the weight of the filaments, fibers and process water.
  • the mixture of filaments / fibers / process water at the time of spend in the bed forming stage is such that the sum of the mass filaments + fibers represents 0.01 to 0.5% by weight of said mixture and preferably 0.02 to 0.05% of said mixture.
  • the mixture may be reduced in concentration filaments + fibers from the pulper to the bed forming device.
  • PVOH fibers representing 1.5 to 20% by weight and more preferably 2.5 to 15% by weight of the sum of the mass of cut filaments and PVOH fibers.
  • cut filaments only glass filaments can be used.
  • cut filaments it is also possible to use a mixture of filaments of glass and cellulose fibers, especially in the mass ratio the following glass / cellulose: from 99/1 to 80/20, and preferably from 95/5 to 90/10, being heard that the mass of glass filaments takes into account its eventual sizing.
  • the process water may include a thickener to increase the viscosity of the process water.
  • This thickener may be present from 0 to 0.5% by weight in the process water.
  • This thickener may for example be a hydroxyethylcellulose (e.g., Natrosol 250HHR from Hercules).
  • the process water may comprise a cationic dispersant.
  • This dispersant Cationic acid may be present in an amount of 0 to 0.1% by weight in the process water.
  • This cationic dispersant can be, for example, guanidine or an amine greasy chain. It is especially possible to use the aerosol C 61 marketed by CYTEC.
  • the thickener is preferably introduced so that the water of process at 20 ° C has a viscosity of between 1 and 20 mPa.s and preferably between 5 and 12 mPa.s.
  • the process water / chopped filament dispersion is stirred and then sent on a permeable training cloth (which can also be called carpets) letting the process water flow through it and retaining the cut filaments and the PVOH fibers on its surface.
  • Process water can be aspirated for improve his evacuation.
  • Process water can be recycled to be again mixed with cut filaments and PVOH fibers. Filaments cut and the PVOH fibers, mixed, thus form a bed on the surface of the fabric of training.
  • the training cloth is a moving carpet, that is to say in motion, and conveying the bed towards the steaming device.
  • the final haze generally comprises 1.5 to 15% by weight of binder (which can to be exclusively PVOH), and more generally 2.5 to 10% by weight of binder (can be exclusively PVOH), the rest of the mass of the veil being generally constituted by the mass of the filaments which includes the possible sizing products that cover them.
  • the veil according to the invention is generally based on glass filaments, that is to say that it generally comprises at least 55% by weight of glass in the form of filaments. So, the veil can understand at least 80% by weight of glass in the form of filaments, and in particular when only glass filaments were used as cut filaments.
  • the final veil includes both glass filaments and cellulose, these two types of components remain present in the final veil in the proportions of their introduction and that has already been said.
  • the binder can be of the type usually used in this kind of production.
  • it may be plasticized polyvinyl acetate (PVAc) or acrylic styrene or self-crosslinkable acrylic or urea formalin or melamine formaldehyde.
  • PVAc plasticized polyvinyl acetate
  • acrylic styrene acrylic styrene or self-crosslinkable acrylic or urea formalin or melamine formaldehyde.
  • the excess binder can be sucked out through the forming fabric.
  • the bed should enter wet (between 20 and 70% by weight of water, for example approximately 40% by weight of water) in the parboiling device to allow the dissolving the polyvinyl alcohol fiber in the water.
  • This dissolution occurs under the effect of temperature, generally from about 60 ° C.
  • the fiber of PVOH is thus transformed into binder droplets.
  • the heat treatment step aims to evaporate the water as well as to carry out the possible chemical reactions between the different constituents as for example the condensations of -OH groups.
  • the treatment Thermal can be achieved by heating between 140 and 250 ° C.
  • the duration of the Heat treatment usually goes from 2 seconds to 3 minutes.
  • the veil can be dried and heat-treated in a circulating hot air oven through the carpet. At the end of the heat treatment, essentially all the PVOH fibers transformed into a PVOH binder and no longer appear in the form of fibers.
  • FIG. 1 schematically represents a method of preparation in continuous of a veil according to the invention.
  • the cut filaments and the PVOH fiber are dispersed in a pulper 1 in the presence of process water and under agitation.
  • the mixture is then poured into a container of storage 2 through line 3, the function of the storage bin being to increase the mixing time between the filaments and the process water.
  • This tray storage is optional.
  • the mixture is then brought through the pipe 4 to line 5, which brings together the flow of mixture from the line 4 to a stream of recycled process water from the headbox 6 at line 7. At this level, the content of filaments and fibers in the Filament / fiber / process water mixture is strongly lowered.
  • Water from process is drained in 14 and possibly aspirated in 15 through the canvas of training 8 and is recycled via Line 17. This water recycled is then shared in 16, for example for about 10% for return to the pulper through Line 10 and for about 90% to return to the headbox 6 through the pipes 9, 7 and 5.
  • the circulation in the pipes is ensured by the pumps 11, 12 and 13.
  • the pump 11 is called the main pump ("fan pump” in English).
  • the veil formation 18 then makes a "carpet jump" to the parboiling device 19, and the final veil is rolled up to 20.
  • the invention leads to a veil having a very high level of tensile strength for low levels of binders, especially such that the following relationship is verified: R T / (L, G)> 0.03, or even> 0.035, wherein R T is the tensile strength in daN for 5 cm, L is the binder content in the web in% by weight, and G is the basis weight of the web in g / m 2 .
  • R T is the tensile strength in daN for 5 cm
  • L is the binder content in the web in% by weight
  • G is the basis weight of the web in g / m 2 .
  • the resistances to the the traction of the sail according to the invention is twice that given to a sail classical bonded by a formaldehyde urea of very good characteristic (see in particular the examples).
  • the veil according to the invention is more particularly intended for coatings of walls. For this type of application, we do not want it to contain resin PVC type.
  • the veil according to the invention is therefore generally such that it does not contain no PVC.
  • the tensile strength was measured by the standard ISO 3342.
  • Glass yarns cut to a length of 18 mm are used, said yarns containing filaments with a diameter of 13 ⁇ m, said filaments being coated with a size comprising an organosilane and having a moisture content of 13% by weight. These yarns are used in the process of FIG. 1.
  • the cut glass yarns are introduced into the pulper so that their concentration is respectively 1.95 (example 1), 1.9 (example 2). 1.8 (Example 3) grams per liter.
  • 4 mm of PVOH brand Kuralon 105-2 marketed by Kuraray
  • PVOH brand Kuralon 105-2 marketed by Kuraray
  • the concentration of glass yarn is then diluted by 10 and the concentration of filaments + fibers on arrival on the forming fabric was 0.2 g / l.
  • the concentration of PVOH fibers on arrival on the forming fabric was 0.005, 0.01 and 0.02 g / l, respectively.
  • the forming fabric scrolled with a speed of 80 m / min, the flow rate of glass fiber-PVOH-process water mixture spilling on the fabric being 35 m 3 / hour.
  • the process water contained 0.1% by weight of hydroxyethyl cellulose (Natrosol 250HHR from Hercules) and 0.025% by weight of cationic dispersant (C61 Cytec aerosol). After drainage and suction of the excess water, the wet mat contains 35% water.
  • the web is then dried in a hot air oven at 180 ° C for 20 seconds.
  • the veil obtained is very homogeneous and has a weight per unit area of 50 g / m 2 . It contains the amounts of PVOH shown in Table 1. Table 1 summarizes the results.
  • Example 1 The procedure is as for Example 1 except that no PVOH fiber is added to the pulper, and except that a binder is added after the forming fabric and before drying by pouring a cascade of solution of PVOH or urea formaldehyde on the moving sheet.
  • the sail obtained all have a mass per unit area of 50 g / m 2 .
  • Table 1 summarizes the results.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Nonwoven Fabrics (AREA)
  • Paper (AREA)
  • Reinforced Plastic Materials (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Surface Treatment Of Glass Fibres Or Filaments (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Claims (22)

  1. Verfahren zur kontinuierlichen Herstellung eines Vliesstoffs, der Glasfilamente und 1,5 bis 15 Gew.-% Bindemittel umfasst und mit einem PVOH enthaltenden Bindemittel gebunden ist, welches:
    a. eine Stufe der Bildung einer Dispersion von Glasfilamente umfassenden zugeschnittenen Filamenten und diskontinuierlichen PVOH-Fasern in einem Kreislaufwasser,
    b. eine Stufe der Bildung eines Betts in einer Bildungseinrichtung mittels Durchlauf der Dispersion über ein Bildungssieb, durch welches das Kreislaufwasser abläuft und welches ein Transportband ist, wobei die Filamente und die Fasern auf diesem Sieb zurückgehalten werden, und anschließend
    c. eine Stufe der Wärmebehandlung des Betts auf einem Transportband in einer Trocknungseinrichtung
    umfasst.
  2. Verfahren nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass durch den Übergang des Betts von der Bildungseinrichtung auf die Trocknungseinrichtung mindestens eine Übergabestelle gebildet wird.
  3. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die zugeschnittenen Glasfilamente in das Kreislaufwasser in Form von Fäden, die 10 bis 2 000 dispergierbare Filamente umfassen, eingebracht werden.
  4. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Menge an PVOH-Fasern 1,5 bis 20 Gew.-% der Summe der Masse aus zugeschnittenen Filamenten und PVOH-Fasern ausmacht.
  5. Verfahren nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass die PVOH-Fasermenge 2,5 bis 15 Gew.-% der Summe der Masse aus zugeschnittenen Filamenten und PVOH-Fasern ausmacht.
  6. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Länge der PVOH-Fasern 3 bis 15 mm beträgt.
  7. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Dispersion zum Zeitpunkt des Durchlaufs durch die Stufe der Bildung des Betts derart ist, dass die Summe der Masse aus Filamenten + Fasern 0,01 bis 0,5 % ihres Gewichts ausmacht.
  8. Verfahren nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass die Dispersion zum Zeitpunkt des Durchlaufs durch die Stufe der Bildung des Betts derart ist, dass die Summe der Masse aus Filamenten + Fasern 0,02 bis 0,05 % ihres Gewichts ausmacht.
  9. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Kreislaufwasser derart ein Verdickungsmittel enthält, dass seine Viskosität bei 20 °C 1 bis 20 mPa·s beträgt.
  10. Verfahren nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass das Kreislaufwasser derart ein Verdickungsmittel enthält, dass seine Viskosität bei 20 °C 5 bis 12 mPa·s beträgt.
  11. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Vliesstoff 2,5 bis 10 Gew.-% Bindemittel enthält.
  12. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die zu Beginn zugeführten PVOH-Fasern 25 bis 100 % des Gesamtgewichts des Bindemittels im Vliesstoff bilden.
  13. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Bindemittel ausschließlich aus PVOH besteht.
  14. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Vliesstoff mindestens 80 Gew.-% Glas in Form von Filamenten enthält.
  15. Vliesstoff, der Glasfilamente und mindestens ein Bindemittel derart umfasst, dass RT/(L · G) > 0,03, wobei RT den Mittelwert der Zugfestigkeit in daN auf 5 cm für Längsrichtung und Querrichtung, L den Bindemittelanteil in Gew.-% und G das Flächengewicht in g/m2 bedeutet.
  16. Vliesstoff nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass RT/(L · G) > 0,035.
  17. Vliesstoff nach einem der ihn betreffenden vorhergehenden Ansprüche, dadurch gekennzeichnet, dass er Glasfilamente und Cellulosefilamente mit einem Masseverhältnis von Glas/Cellulose von 99/1 bis 80/20 umfasst.
  18. Vliesstoff nach einem der ihn betreffenden vorhergehenden Ansprüche, dadurch gekennzeichnet, dass er Glas- und Polyesterfilamente mit einem Masseverhältnis von Glas/Polyester von 99/1 bis 70/30 umfasst.
  19. Vliesstoff nach einem der ihn betreffenden vorhergehenden Ansprüche, dadurch gekennzeichnet, dass er mindestens 80 Gew.-% Glas in Form von Filamenten enhält.
  20. Vliesstoff nach einem der ihn betreffenden vorhergehenden Ansprüche, dadurch gekennzeichnet, dass er 1,5 bis 15 Gew.-% des Bindemittels PVOH enthält.
  21. Vliesstoff nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass er 2,5 bis 10 Gew.-% des Bindemittels PVOH enthält.
  22. Vliesstoff nach einem der ihn betreffenden vorhergehenden Ansprüche, dadurch gekennzeichnet, dass er kein PVC enthält.
EP20030735782 2002-03-20 2003-03-19 Pvoh-faser als bindemittel in einem vlies Expired - Lifetime EP1485536B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0203443 2002-03-20
FR0203443A FR2837503B1 (fr) 2002-03-20 2002-03-20 Voile a liant fibre pvoh
PCT/FR2003/000869 WO2003078733A2 (fr) 2002-03-20 2003-03-19 Voile a liant fibre pvoh

Publications (2)

Publication Number Publication Date
EP1485536A2 EP1485536A2 (de) 2004-12-15
EP1485536B1 true EP1485536B1 (de) 2005-12-14

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EP20030735782 Expired - Lifetime EP1485536B1 (de) 2002-03-20 2003-03-19 Pvoh-faser als bindemittel in einem vlies

Country Status (18)

Country Link
US (2) US7402225B2 (de)
EP (1) EP1485536B1 (de)
JP (1) JP2005527709A (de)
KR (1) KR20040097165A (de)
CN (1) CN100357519C (de)
AT (1) ATE312973T1 (de)
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FR2849655B1 (fr) 2003-01-08 2005-02-11 Saint Gobain Vetrotex Fabrication d'un voile en fibres de verre et de cellulose en milieu cationique
RU2478747C2 (ru) * 2011-05-16 2013-04-10 Владимир Климентьевич Дубовый Бумагоподобный нанокомпозит на основе минеральных волокон и неорганических связующих
CN102979009A (zh) * 2012-12-13 2013-03-20 苏州维艾普新材料有限公司 一种对人体无害的短切丝玻璃纤维芯材及其制备方法

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JPS584618B2 (ja) * 1977-08-23 1983-01-27 三菱製紙株式会社 ガラスシ−ト基材の製造方法
US4234379A (en) * 1978-06-02 1980-11-18 The Dexter Corporation Process for producing a uniform fiber dispersion and machine made light weight glass fiber web material
US4810576A (en) * 1985-09-30 1989-03-07 Ppg Industries, Inc. Treated glass fibers and aqueous dispersion and nonwoven mat of the glass fibers
FR2709485B1 (fr) * 1993-08-30 1995-11-17 Arjo Wiggins Sa Voile minéral.
US20030008586A1 (en) * 1999-10-27 2003-01-09 Johns Manville International, Inc. Low binder nonwoven fiber mats, laminates containing fibrous mat and methods of making
US6291552B1 (en) * 1999-10-29 2001-09-18 Owens Corning Fiberglas Technology, Inc. Method for producing a glass mat
FR2804677B1 (fr) * 2000-02-09 2002-08-30 Vetrotex France Sa Voile de verre et son utilisation pour des revetements d'etancheite
US6767851B1 (en) * 2000-04-05 2004-07-27 Ahlstrom Glassfibre Oy Chopped strand non-woven mat production
FR2836934B1 (fr) * 2002-03-06 2004-05-07 Saint Gobain Vetrotex Mat de fils coupes par voie humide
FR2849655B1 (fr) * 2003-01-08 2005-02-11 Saint Gobain Vetrotex Fabrication d'un voile en fibres de verre et de cellulose en milieu cationique

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JP2005527709A (ja) 2005-09-15
EP1485536A2 (de) 2004-12-15
RU2308558C2 (ru) 2007-10-20
BR0308362A (pt) 2005-01-25
WO2003078733A2 (fr) 2003-09-25
NO20044295L (no) 2004-10-11
WO2003078733A3 (fr) 2004-04-01
ES2253685T3 (es) 2006-06-01
MXPA04009097A (es) 2005-07-13
AU2003236863A1 (en) 2003-09-29
KR20040097165A (ko) 2004-11-17
CA2479360A1 (fr) 2003-09-25
FR2837503B1 (fr) 2004-06-04
PL371023A1 (en) 2005-06-13
US7402225B2 (en) 2008-07-22
RU2004130858A (ru) 2005-07-10
PL204758B1 (pl) 2010-02-26
DE60302774T2 (de) 2006-09-07
US20050255774A1 (en) 2005-11-17
FR2837503A1 (fr) 2003-09-26
UA76845C2 (uk) 2006-09-15
CN100357519C (zh) 2007-12-26
ATE312973T1 (de) 2005-12-15
CN1643212A (zh) 2005-07-20
DE60302774D1 (de) 2006-01-19
US20080199668A1 (en) 2008-08-21

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