EP3535445A1 - Procédé de fabrication d'un non-tissé obtenu par voie humide - Google Patents
Procédé de fabrication d'un non-tissé obtenu par voie humideInfo
- Publication number
- EP3535445A1 EP3535445A1 EP17801356.1A EP17801356A EP3535445A1 EP 3535445 A1 EP3535445 A1 EP 3535445A1 EP 17801356 A EP17801356 A EP 17801356A EP 3535445 A1 EP3535445 A1 EP 3535445A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- dryer
- fibrous web
- fibers
- infrared
- hot air
- 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- Withdrawn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
- 239000004745 nonwoven fabric Substances 0.000 title abstract description 18
- 238000004519 manufacturing process Methods 0.000 title abstract description 7
- 238000001035 drying Methods 0.000 claims abstract description 61
- 239000000835 fiber Substances 0.000 claims abstract description 32
- 239000012784 inorganic fiber Substances 0.000 claims abstract description 9
- 230000005855 radiation Effects 0.000 claims abstract description 9
- 229920000642 polymer Polymers 0.000 claims abstract description 7
- 239000011230 binding agent Substances 0.000 claims description 23
- 239000004744 fabric Substances 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 19
- 239000000725 suspension Substances 0.000 claims description 19
- 238000010438 heat treatment Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 238000007664 blowing Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 5
- 238000000354 decomposition reaction Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 239000011707 mineral Substances 0.000 claims description 2
- 238000000151 deposition Methods 0.000 claims 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000000126 substance Substances 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000007711 solidification Methods 0.000 description 4
- 230000008023 solidification Effects 0.000 description 4
- 238000005470 impregnation Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000009940 knitting Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 229920002748 Basalt fiber Polymers 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229920000914 Metallic fiber Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000002557 mineral fiber Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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
- D04H1/4209—Inorganic 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
- D04H1/4282—Addition 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
- 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
-
- 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
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F5/00—Dryer section of machines for making continuous webs of paper
- D21F5/001—Drying webs by radiant heating
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F5/00—Dryer section of machines for making continuous webs of paper
- D21F5/001—Drying webs by radiant heating
- D21F5/002—Drying webs by radiant heating from infrared-emitting elements
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F5/00—Dryer section of machines for making continuous webs of paper
- D21F5/18—Drying webs by hot air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
Definitions
- the invention relates to a method for producing or drying a wet laid nonwoven fabric.
- Nonwovens from natural fibers typically include a fibrous web formation and subsequent dewatering such as drying. As a result of drying, the actual nonwoven fabric is produced from the fibrous web.
- Different methods of web formation are known from the prior art. The formation of the fibrous web is usually carried out by means of a wet-laying method on a skew-wire former with very low consistency of the pulp suspension, in particular with a solids content of 0.01 to 0.1% by weight, based on 100% by weight of the obtained nonwoven.
- the present invention has for its object to provide a method of the type mentioned, with which the aforementioned problems are eliminated in the simplest and most reliable manner.
- a method is to be given in which nonwoven webs are e.g. from inorganic fibers by adding binders, can reach their final strength more quickly than before, in order to be transported without support from below, in the open train.
- the object is achieved according to the independent claims. Particularly preferred and advantageous embodiments of the invention are given in the subclaims.
- a fibrous web is understood as meaning a blanket or tow made of a pulp suspension of fibers of limited length, for example continuous fibers (filaments) or cut yarns.
- the fibrous web initially has - so immediately after their formation - such a low strength that they themselves is not sustainable. It is worn by the forming fabric on which it was placed so that it does not lose its shape.
- a nonwoven fabric or a nonwoven web in the sense of the invention is an assembly of fibers which in some way have been joined together to form a nonwoven (ie a fibrous web or a fibrous web) and are, for example, joined together in some way.
- a nonwoven fabric is a consolidated, in particular finally solidified fibrous web.
- solidified means that in particular to the chemical solidification (here: drying) no further measures that cause a further increase in strength of the nonwoven web.
- the fibrous web is an intermediate of the finally produced, fully consolidated nonwoven web.
- a (final) solidification in the context of the present invention always takes place by means of a chemical solidification process.
- the fibrous web is impregnated with a curable binder.
- the drying of the fibrous web takes place.
- the excess water mainly from the pulp suspension, is removed from the fibrous web. Due to the influence of heat, the binder binds off.
- the impregnation of the fibrous web can take place in the forming section and / or in a binder section of the machine for producing the nonwoven web.
- the fibrous web dries - preferably completely within the dryer section - to the final nonwoven web. The drying can take place in the dryer section of the machine for producing such nonwoven webs.
- the nonwovens in the sense of the invention do not belong by the interlacing of yarns such as in weaving, knitting, knitting, lace making, braiding and the production of tufted products happens, made fiber structures. Also films and papers are not among the nonwovens.
- a wet-laid nonwoven web drying of a provided with binders, wet laid fibrous web to a nonwoven.
- the invention also relates to a process for the treatment of a preferably wet-laid nonwoven web.
- treatment is understood to mean the subsequent treatment of an already finally produced, fully consolidated nonwoven web or of such a nonwoven fabric.
- post-treatment may include a refinement such as e.g. represent an order of paint or glue.
- a liquid or pasty application medium can be applied to the finished consolidated nonwoven web.
- the treatment is then again a drying to dry this application medium. The drying can be carried out according to the invention as explained with reference to the preparation.
- a process for treating a nonwoven web, preferably wet-laid according to the invention may comprise the following steps:
- the treatment and the said method of treatment can inline, ie within a single machine without intermediate reeling of the nonwoven web - or offline, so with such an intermediate reeling of the finished nonwoven web and a downstream unwinding with a followed by this order of application medium and subsequent drying according to the invention.
- final strength such a high strength of the nonwoven web, so that it can be transported within the dryer section or in another section of the machine without the need for a bottom supporting belt (free pull).
- fibrous suspension means a mixture of a liquid, such as water, and fibers.
- a former such as an oblique wire former, is associated with a forming fabric that extends at an angle to the horizontal at least in sections, for example along a first section.
- Road section is then arranged at least one headbox so that this applies the pulp suspension on the top of the forming fabric.
- Upper side means that the pulp suspension is applied to the top of the forming fabric. This is the side, on the one hand facing away from the rollers on which it rotates, and on the other hand faces the outlet of the headbox.
- At least one dewatering element can be arranged for dewatering the newly applied pulp suspension.
- the headbox may in turn be associated with the Schrägsiebformer.
- the Schrägsiebformer is arranged such that the first stretch increases in the direction of the deposited fibrous web viewed at an angle to a horizontal plane.
- Such a former may be part of a forming section of the machine for making such a nonwoven fabric.
- a forming fabric, a conveyor belt or just a belt is usually designed as an endless loop, eg circulating on rollers, self-contained loop. It can be permeable to water.
- decomposition temperature is meant the temperature at which the material of the fibers decomposes chemically or thermally.
- the decomposition temperature is e.g. characteristic of materials which do not melt, e.g. Thermosets.
- melting temperature is meant that temperature at which the material is e.g. the fiber passes from the solid state to the melt.
- modulus of elasticity is meant a material characteristic value from the material technology which describes the relationship between stress and strain in the deformation of a solid body with linear-elastic behavior.
- the nonwoven fabrics of the invention may preferably be made of glass, metal, mineral, ceramic or carbon fibers.
- Such fibers may also be plastic fibers such as aramid fibers, but also mineral fibers such as basalt fibers.
- plastic fibers such as aramid fibers, but also mineral fibers such as basalt fibers.
- metallic fibers for example, steel, stainless steel or titanium fibers are used Consideration.
- the materials mentioned often have a modulus of elasticity of at least 10 GPa. They are then comparatively hard, brittle and rigid and can devour and entangle themselves poorly. Therefore, it is particularly advantageous if these fibers are connected to each other by means of a binder, for example in a binder section of the machine.
- the solidified nonwoven web In order to dry the solidified nonwoven web quickly and effectively, in addition to the thermal drying, it may also be mechanically, e.g. be dehydrated by means of a press.
- the present invention further relates to the use of a drying apparatus for drying the wet laid web of the invention.
- the present invention also relates to a machine comprising said forming section, with the former, such as Schrägsiebformer, a binder section and a dryer section, at least comprising the drying device according to the invention to produce the inventive wet-laid nonwoven web.
- the present invention also relates to the product produced directly by means of the method according to the invention, that is to say the nonwoven itself.
- Fig. 1 is a highly schematic partial representation of a machine for
- FIG. 1 a part of a machine for wet wetting a nonwoven web in a side view is shown schematically and therefore not to scale.
- the device comprises a former, in the present case designed as Schrägsiebformer 1. This is an endless, here on rollers encircling forming fabric 2 assigned. The latter revolves relative to the fixed Schrägsiebformer. 1 Above the Formiersiebs 2 a headbox 1 .1 is arranged. The latter is associated with the Schrägsiebformer 1.
- the headbox 1 .1 is a pulp suspension can be fed, which can be applied via an outlet of the headbox 1 .1 on the Formiersieb 2, more precisely on its upper side.
- the pulp suspension usually has a water-fiber mixture.
- the forming fabric 2 is designed so that it lets the water through.
- Below the Formiersiebs 2, on the headbox 1 .1 side facing a drainage box 1 .2 for discharging the water of the pulp suspension is arranged.
- the drainage box 1 .2 is associated with the Schrägsiebformer 1.
- the pulp suspension passes through the outlet of the headbox 1 .1 on the relative to the headbox 1 .1 or on the drainage box 1 .2 on the roles passing forming fabric 2.
- the water flows through the forming fabric 2 in the drainage box. 1 .2 off.
- the fibers from the pulp suspension remain hanging on the forming fabric 2 and are transported with this. In this way, a corresponding fibrous web F is continuously stored or formed on the forming fabric 2.
- the Formiersieb 2 is - seen in the running direction or in the direction of the fibrous web F - in a first section, inclined against the horizontal upwards.
- this first stretch of the Schrägsiebformer 1 is arranged, ie, on this section, the fibrous web F is formed.
- the first section is limited by the upper, in the direction of the Tragsiebs 2 immediately successive roles. These are at least provided two such upper rollers.
- the forming wire 2 which rotates in the clockwise direction, thus increases in the first section from bottom left to top right.
- the former could also be designed differently than the illustrated Schrägsiebformer 1.
- the former including forming fabric 2, head box 1 .1 and drainage box 1 .2 is part of the forming section of the machine for producing the nonwoven web V from the wet-laid fibrous web F.
- a binding section of the machine adjoins the forming section directly ,
- this comprises an application device 7, which is arranged above a transport screen 5 extending horizontally or at least partially substantially parallel to the horizontal plane.
- the application device 7 the nonwoven web V can be impregnated with a chemical binder.
- the application device 7 could also be designed differently from the embodiment shown.
- the binding agent application already takes place on the forming fabric 2.
- the application device 7 would be arranged behind the former in the running direction of the fibrous web F. And this in such a way that it releases the binder from above onto the fibrous web F deposited on the forming fabric 2.
- a drying device 3 according to the invention as could follow in the running direction of the fibrous web F to the binder section of FIG. 1, is shown in FIG. As indicated by the arrow, the fibrous web F produced in the Formierpartie first passes into the drying device 3. When the fibrous web F leaves the drying device 3, it is finally to the actual nonwoven web V finally solidified.
- the length of the drying device 3, ie the length of the action of heat on the fibrous web F to be dried, is also referred to as a drying section.
- the drying device 3 comprises at least one combination dryer 4.
- four combination dryers 4 arranged one after the other in the direction of travel of the fibrous web F to be dried are provided.
- the latter are arranged directly adjacent to each other. This means that when the fibrous web F to be dried leaves a first combination dryer 4, as seen in the running direction, it passes directly into the subsequent combination dryer 4.
- Each of the combination dryer 4 each comprises an infrared dryer 6 and a hot air dryer 8. All combination dryers are arranged so that seen in the direction of the fibrous web F by infrared radiation from the associated infrared dryer 6, then convection by the corresponding hot air dryer 8, again by means of thermal radiation and so on is dried alternately. As soon as the fibrous web F, viewed in its running direction, has left the first combination dryer 4, it passes into the second combination dryer 4. There, in turn, it is first dried by the corresponding infrared drier 6, then by the corresponding hot-air drier 8, seen in its running direction.
- Hot air dryer 8 viewed in each case in the running direction of the fibrous web 7 by the drying device 3, between an infrared drier 6 of a first combination drier 4 in the running direction and between an infrared drier 6 of a further combination drier 4 immediately following in the running direction, a respective one of the first combination driers 4 is assigned Hot air dryer 8 arranged. It could also be said that the fibrous web F is dried alternately along the drying path by means of heat radiation, then by means of convection, again by means of heat radiation and so on. For this purpose, the combination dryer 4 along the drying section are arranged according to successive.
- the infrared dryer 6 of a respective combination dryer 4 may be designed as a gas-heated infrared dryer.
- the infrared dryer 6 may comprise one or more infrared radiators (not shown).
- the exhaust gases generated by means of the infrared radiator can then be sucked out of the infrared dryer 6 via one or more suction nozzles 9 associated with the infrared dryer 6, of which only one is indicated purely schematically here.
- the at least one suction nozzle 9 can be arranged within a housing surrounding the infrared dryer 6.
- the respective hot-air dryer may comprise one or more blowing nozzles 10, of which also only one is shown here purely schematically.
- the at least one blast nozzle 10 serves, inter alia, to supply heated air to the fibrous web F for drying thereof.
- the at least one blowing nozzle 10 on the one hand with a fresh air supply are in flow-conducting connection.
- a flow-conducting connection between the at least one suction nozzle 9 and the at least one blowing nozzle 10 one and the same combination dryer 4 may be provided.
- the thermal energy contained in the exhaust gas of the infrared dryer 6 can be used to heat the fresh air or to dry the fibrous web F by means of the thermal energy of the exhaust gas of the respective infrared dryer 6.
- the drying device 3 is set up such that the heating temperature or the heating power of the individual combination dryer 4 seen in the direction of the fibrous web F to be dried is different or is independently adjustable.
- the drying power to the drying fibers of the fibrous web F optimally adjusted and thus the optimum strength of the produced nonwoven web V can be adjusted specifically. It has been shown that it is advantageous if the drying device 3 is set up such that the heating power or the heating temperature in the running direction of the fibrous web F to be dried increases from combination dryer 4 to combination dryer 4.
- the entire drying device 3 in the running direction of the fibrous web F to be dried can be subjected to a temperature profile which is kept constant during operation of the drying device 3.
- the temperature can be set constant both in the infrared dryer 5 and in the hot air dryer 8.
- the temperature profile can, for example, gradually increase from that in the running direction of the fibrous web F to be dried to the second, to the third combination dryer 4, and in turn fall off in the fourth (last or further) combination dryer 4. Since the moisture content of the fibrous web F decreases continuously as it traverses the drying device 3, less heating power is required at the end of the drying within the drying device 3.
- a corresponding temperature profile can be set to the fibrous web F then optimally to the nonwoven web V to dry.
- the fibrous web F is purely chemically solidified according to the invention, so that the final nonwoven web V is formed. This is done by the addition and subsequent drying of the chemical binder contained in the fibrous web F.
- the final strength of the nonwoven web V can be achieved in a comparatively short time.
- the nonwoven web can be passed faster than before in a free train for further processing or reeling to another band such as conveyor belt in another section of the machine for producing such nonwoven webs without breaking them. It has been found that the invention shows the advantages mentioned above particularly well with nonwovens made from inorganic fibers such as glass fibers.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Nonwoven Fabrics (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016120933.3A DE102016120933B4 (de) | 2016-11-03 | 2016-11-03 | Verwendung einer Trockenvorrichtung zur Herstellung eines nassgelegten Vliesstoffes |
PCT/EP2017/077600 WO2018083026A1 (fr) | 2016-11-03 | 2017-10-27 | Procédé de fabrication d'un non-tissé obtenu par voie humide |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3535445A1 true EP3535445A1 (fr) | 2019-09-11 |
Family
ID=60413140
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17801356.1A Withdrawn EP3535445A1 (fr) | 2016-11-03 | 2017-10-27 | Procédé de fabrication d'un non-tissé obtenu par voie humide |
Country Status (5)
Country | Link |
---|---|
US (1) | US10975504B2 (fr) |
EP (1) | EP3535445A1 (fr) |
CN (1) | CN109923252A (fr) |
DE (1) | DE102016120933B4 (fr) |
WO (1) | WO2018083026A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019117281B3 (de) | 2019-06-27 | 2020-06-18 | Voith Patent Gmbh | Verfahren zur Herstellung und/oder Veredelung einer Glasvliesstoffbahn |
CN110846808A (zh) * | 2019-12-17 | 2020-02-28 | 四川谦宜复合材料有限公司 | 一种玄武岩纤维薄毡、制备方法及其设备 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1988000989A1 (fr) | 1986-08-04 | 1988-02-11 | Berne Ellers | Procede et appareil permettant de lier par fusion des fibres cellulosiques a des fibres thermoplastiques |
WO1989004890A1 (fr) | 1987-11-26 | 1989-06-01 | Valmet Oy | Procede et dispositif de sechage d'un bande de papier ou similaire lors de l'appret de sa surface par voie automatique |
US5409573A (en) | 1988-05-10 | 1995-04-25 | E. I. Du Pont De Nemours And Company | Composites from wet formed blends of glass and thermoplastic fibers |
JPH01318045A (ja) | 1988-05-10 | 1989-12-22 | E I Du Pont De Nemours & Co | ガラス繊維と熱可塑性繊維との湿式成形混合物よりの複合材料 |
DE3831496C2 (de) * | 1988-09-16 | 2001-03-22 | Fleissner Maschf Gmbh Co | Verfahren zum thermischen Verfestigen von Vliesen mit Bindepulver |
SE468287B (sv) | 1991-04-22 | 1992-12-07 | Infraroedteknik Ab | Saett resp anordning foer behandling av en kontinuerlig materialbana |
ATE162251T1 (de) | 1993-08-07 | 1998-01-15 | Voith Gmbh J M | Vorrichtung zum streichen einer papierbahn |
US5935884A (en) | 1997-02-14 | 1999-08-10 | Bba Nonwovens Simpsonville, Inc. | Wet-laid nonwoven nylon battery separator material |
FR2771161B1 (fr) * | 1997-11-14 | 2000-01-14 | Solaronics | Systeme convecto-radiatif pour traitement thermique d'une bande continue |
US6497787B1 (en) * | 2000-04-18 | 2002-12-24 | Owens-Corning Veil Netherlands B.V. | Process of manufacturing a wet-laid veil |
US6877247B1 (en) * | 2000-08-25 | 2005-04-12 | Demoore Howard W. | Power saving automatic zoned dryer apparatus and method |
FR2867263B1 (fr) | 2004-03-02 | 2006-05-26 | Solaronics Irt | Installation de sechage pour une bande defilante, notamment pour une bande de papier |
DE102004027938A1 (de) | 2004-06-08 | 2005-12-29 | Voith Paper Patent Gmbh | Trockenpartie |
DE102008042247A1 (de) | 2008-09-22 | 2010-04-01 | Voith Patent Gmbh | Materialbahntrockneranordnung |
JP5682460B2 (ja) * | 2011-06-07 | 2015-03-11 | 王子ホールディングス株式会社 | 印刷用塗工紙の製造方法 |
EP3006622B1 (fr) * | 2013-06-03 | 2019-06-26 | Oji Holdings Corporation | Procédé de production de feuille contenant de fines fibres |
DE102014012159A1 (de) * | 2014-08-14 | 2016-02-18 | Johns Manville Europe Gmbh | Verfahren zur Herstellung von hochgefüllten Vliesstoffen |
WO2018046509A1 (fr) * | 2016-09-08 | 2018-03-15 | Solaronics S.A. | Hotte à convection pour le traitement thermique d'une bande continue |
-
2016
- 2016-11-03 DE DE102016120933.3A patent/DE102016120933B4/de not_active Expired - Fee Related
-
2017
- 2017-10-27 US US16/347,291 patent/US10975504B2/en active Active
- 2017-10-27 CN CN201780067833.1A patent/CN109923252A/zh active Pending
- 2017-10-27 EP EP17801356.1A patent/EP3535445A1/fr not_active Withdrawn
- 2017-10-27 WO PCT/EP2017/077600 patent/WO2018083026A1/fr unknown
Also Published As
Publication number | Publication date |
---|---|
US20190276960A1 (en) | 2019-09-12 |
CN109923252A (zh) | 2019-06-21 |
WO2018083026A1 (fr) | 2018-05-11 |
DE102016120933B4 (de) | 2018-10-18 |
US10975504B2 (en) | 2021-04-13 |
DE102016120933A1 (de) | 2018-05-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2129821B8 (fr) | Système pour traiter des non-tissés | |
DE112010002094T5 (de) | Einrichtung zur trocknung und behandlung einer tissuepapierbahn | |
EP3017104B1 (fr) | Procédé de conversion et d'utilisation d'un dispositif de fabrication de tissu non-tissé | |
DE102009007669A1 (de) | Verfahren und Vorrichtung zur Herstellung von Watteprodukten | |
DE2333732C3 (de) | Verfahren und Vorrichtung zur Herstellung von Papier oder Pappe | |
DE2753201A1 (de) | Verfahren fuer die behandlung einer papierbahn in der nasspartie einer papiermaschine | |
DE102011005101A1 (de) | Textilbehandlungsmaschine und Verfahren zum Trocknen textiler Strukturen | |
DE102011050328B3 (de) | Vorrichtung zur Verfestigung einer Fasern oder Filamente aus einem thermoplastischen Material umfassenden Lage zu einer Vliesbahn | |
DE102016120933B4 (de) | Verwendung einer Trockenvorrichtung zur Herstellung eines nassgelegten Vliesstoffes | |
WO2015000690A1 (fr) | Procédé et dispositif compact de fabrication de non-tissé | |
WO2009112008A1 (fr) | Procédé et dispositif pour la présolidification d'un non-tissé | |
EP3495543A1 (fr) | Installation et procédé de fabrication d'un tissu non-tissé | |
WO2015000685A1 (fr) | Procédé et dispositif de fabrication de non-tissé | |
WO2021139933A2 (fr) | Installation et procédé de fabrication d'un non-tissé monocouche ou multicouche | |
DE102020113137A1 (de) | Anlage und Verfahren zur Herstellung eines mehrlagigen Vlieses | |
EP3017105A1 (fr) | Procédé et dispositif permettant de produire un non-tissé | |
DE102016217400A1 (de) | Verfahren und Vorrichtung zur Herstellung eines nassgelegten Vliesstoffes | |
EP3604670B1 (fr) | Dispositif de drainage d'une bande de non-tissé obtenu par voie humide | |
EP2106468A1 (fr) | Procédé et dispositif de fabrication d'un non-tissé à une couche ou plusieurs couches | |
WO2015000688A1 (fr) | Procédé et dispositif de fabrication de non-tissé structuré et/ou perforé, en particulier par voie humide | |
DE102016217401A1 (de) | Verfahren und Vorrichtung zur Herstellung eines nassgelegten Vliesstoffes | |
WO2001014623A2 (fr) | Procede et dispositif pour influer sur la structure et la position de fibres lors de la formation aerodynamique de non-tisses | |
EP3833816A1 (fr) | Système de presse | |
DE202008017262U1 (de) | Vorrichtung zur Herstellung eines verfestigten Verbundwerkstoffes aus Fasern und Fäden | |
WO2015000689A1 (fr) | Procédé et dispositif de fabrication de non-tissé, en particulier par voie humide |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20190603 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: BOEGERSHAUSEN, ANDREAS Inventor name: PANIAGUA, JUAN Inventor name: SCHICHT, FRANK |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: VOITH PATENT GMBH |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Effective date: 20210316 |