EP3757268A1 - Procédé de fabrication et/ou d'affinage d'une bande de voile - Google Patents

Procédé de fabrication et/ou d'affinage d'une bande de voile Download PDF

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Publication number
EP3757268A1
EP3757268A1 EP20174303.6A EP20174303A EP3757268A1 EP 3757268 A1 EP3757268 A1 EP 3757268A1 EP 20174303 A EP20174303 A EP 20174303A EP 3757268 A1 EP3757268 A1 EP 3757268A1
Authority
EP
European Patent Office
Prior art keywords
infrared radiation
dryer
glass nonwoven
nonwoven web
radiation dryer
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.)
Pending
Application number
EP20174303.6A
Other languages
German (de)
English (en)
Inventor
Philipp KÜCKMANN
Franziska FERRER
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.)
Voith Patent GmbH
Original Assignee
Voith Patent GmbH
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 Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of EP3757268A1 publication Critical patent/EP3757268A1/fr
Pending legal-status Critical Current

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Classifications

    • 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
    • F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
    • F26B13/101—Supporting materials without tension, e.g. on or between foraminous belts
    • F26B13/104—Supporting materials without tension, e.g. on or between foraminous belts supported by fluid jets only; Fluid blowing arrangements for flotation dryers, e.g. coanda nozzles
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
    • D06M10/001—Treatment with visible light, infrared or ultraviolet, X-rays
    • 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
    • D04H1/4226—Glass fibres characterised by the apparatus for manufacturing the glass fleece
    • 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
    • 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
    • D04H1/655—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 characterised by the apparatus for applying bonding agents
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
    • F26B3/04—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour circulating over or surrounding the materials or objects to be dried
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/28—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun
    • F26B3/30—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun from infrared-emitting elements
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2101/00—Inorganic fibres
    • D10B2101/02—Inorganic fibres based on oxides or oxide ceramics, e.g. silicates
    • D10B2101/06—Glass

Definitions

  • the present invention relates to a method for producing and / or finishing a glass nonwoven web, the method comprising the following step: thermal drying of the glass nonwoven web by means of infrared radiation from an infrared radiation dryer.
  • the present invention also relates to a corresponding device for performing the method.
  • the binder applied during production can also be "blown" by excessively high air velocities, which leads to a limitation of the specific energy input and thus to slow immobilization or later solidification of the glass fleece.
  • a method for the production and / or finishing of a glass nonwoven web comprises the following step: thermal drying of the glass nonwoven web by means of infrared radiation from an infrared radiation dryer, and which is particularly characterized in that the surface of the glass nonwoven web facing the infrared radiation dryer by the infrared radiation dryer a specific power density of at least 153 kW / m 2 is applied, and that the glass nonwoven web has a temperature on its surface facing the infrared radiation dryer of at least 40 ° C and at most 105 ° C after being irradiated by the infrared radiation dryer.
  • the inventors have found that glass nonwovens withstand exposure to such a high specific power density, which is at least 153 kW / m 2 , unexpectedly unscathed, provided that care is taken that the temperature on the surface is within a moderate range of 40 ° C remains up to 105 ° C.
  • the high specific power density makes it possible to drive high process speeds.
  • the temperature on the surface of the infrared radiation dryer facing the infrared dryer depends largely on the length of the infrared radiation dryer in the process direction and on the speed at which the glass nonwoven web is guided past the infrared radiation dryer relative to the latter. Both factors have an influence on the length of time with which a surface section of the glass nonwoven web is exposed to the infrared radiation of the infrared radiation dryer.
  • the glass nonwoven web is to be refined by applying a line, this is preferably applied to the surface of the glass nonwoven facing the infrared radiation dryer immediately before the glass nonwoven is dried by means of infrared radiation from the infrared radiation dryer. “Immediately” in this context means that no other machine units should be provided between the application unit and the infrared radiation dryer. Thus, the distance between the applicator and the infrared radiation dryer can be kept small and the glass nonwoven web coated with the coating can be guided through the infrared radiation dryer in a free pull, that is to say without contact. This is advantageous for the quality of the coating application, which must be protected from contact before it dries through.
  • a curtain application is particularly suitable as an application for the line.
  • the glass nonwoven web After the glass nonwoven web has been dried by means of infrared radiation from the infrared radiation dryer, the glass nonwoven web can furthermore be dried by hot air in a hot air dryer.
  • This can be economically advantageous, since infrared radiation dryers generally have higher operating costs than hot air dryers.
  • the hot air dryer which usually works according to the impingement flow principle, can then be used for subsequent drying without "blowing" the applied line or binding agent to fear.
  • a distance of less than 50 cm, preferably less than 30 cm, between the hot air dryer and the infrared radiation dryer is available. In this way it can be ensured that the temperature of the surface of the glass nonwoven web irradiated by the infrared radiation dryer does not drop significantly before the glass nonwoven web is guided into the hot air dryer.
  • Another aspect of the present invention relates to a device for the production and / or finishing of a glass nonwoven web, the device comprising an infrared radiation dryer for thermal drying of the glass nonwoven web by means of infrared radiation, and is particularly characterized in that the infrared radiation dryer is designed that the surface of the infrared radiation dryer facing the To apply a specific power density of at least 153 kW / m 2 to the glass nonwoven web, the device being designed such that the glass nonwoven web has a temperature on its surface facing the infrared radiation dryer of at least 40 ° C and at most 105 ° C after being irradiated by the infrared radiation dryer .
  • the device is preferably designed to carry out the previously described method according to the invention.
  • Figure 1 shows a first embodiment of a device according to the invention.
  • a glass nonwoven web G coated with a binding agent or a line is passed through a dryer 10 (from left to right in Figure 1 ).
  • the binding agent or the coating can have been applied to a surface of the same immediately before the glass nonwoven web G is dried, for example by a curtain applicator (not shown here).
  • the dryer 10 comprises an infrared radiation dryer 20 arranged upstream, viewed in the process direction, and a hot air dryer 30 arranged downstream.
  • the distance A between the infrared radiation dryer 20 and the hot air dryer 30 is less than 30cm here.
  • the infrared radiation dryer 20 can for its part comprise several modules, each module of which in turn can have several rows of individual infrared radiators.
  • the infrared radiation dryer comprises two modules 21, 22, which each have two rows of infrared radiators.
  • each of the two modules 21, 22 also has a fresh air supply and a used air discharge, the air flows in Figure 1 are marked with arrows.
  • the dryer extends over the entire width (orthogonal to the image plane in Figure 1 ) the glass nonwoven web to be dried (G).
  • the surface of the glass nonwoven web G facing the infrared radiation dryer is acted upon by the infrared radiation dryer 20 with a specific power density of at least 153 kW / m 2 .
  • a suitable choice of the overall length of the infrared radiation dryer 20 and the speed with which the glass nonwoven web G is guided through the dryer 10 ensures that the glass nonwoven web has a temperature of at least 40 on its surface facing the infrared radiation dryer 20 after being irradiated by the infrared radiation dryer 20 ° C and a maximum of 105 ° C.
  • a temperature sensor T can be installed in the dryer 10 which is suitable for determining the temperature on the surface of the glass nonwoven web at the end of the infrared radiation dryer 20 without contact, for example by means of laser technology.
  • the hot air dryer 30 is designed to blow hot air, which it obtains from a source not shown here, onto the surface of the glass nonwoven web G to be dried. The drying takes place primarily through the impingement flow principle.
  • the dryer in the second exemplary embodiment is designed as a combination dryer unit 12.
  • warm air from the used air discharge of the two modules 21, 22 of the infrared radiation dryer 20 is at least partially fed to the hot air dryer 30.
  • the infrared radiation dryer 20 and the hot air dryer 30 of the combination dryer unit 12 can also have a common housing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Drying Of Solid Materials (AREA)
EP20174303.6A 2019-06-27 2020-05-13 Procédé de fabrication et/ou d'affinage d'une bande de voile Pending EP3757268A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019117281.0A DE102019117281B3 (de) 2019-06-27 2019-06-27 Verfahren zur Herstellung und/oder Veredelung einer Glasvliesstoffbahn

Publications (1)

Publication Number Publication Date
EP3757268A1 true EP3757268A1 (fr) 2020-12-30

Family

ID=70682702

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20174303.6A Pending EP3757268A1 (fr) 2019-06-27 2020-05-13 Procédé de fabrication et/ou d'affinage d'une bande de voile

Country Status (3)

Country Link
US (1) US11828021B2 (fr)
EP (1) EP3757268A1 (fr)
DE (1) DE102019117281B3 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988003193A1 (fr) * 1986-10-31 1988-05-05 Imatran Voima Oy Procede et dispositif de sechage d'un materiau en bande mobile
WO2015117927A1 (fr) * 2014-02-05 2015-08-13 Solaronics S.A. Procédé pour sécher ou durcir un revêtement organique sur une plaque de verre
DE102016120933A1 (de) 2016-11-03 2018-05-03 Voith Patent Gmbh Verfahren zur Herstellung eines nassgelegten Vliesstoffes
WO2018142244A1 (fr) * 2017-02-02 2018-08-09 Destra Gmbh Procédé de traitement de matériaux fibreux et système mettant en œuvre ledit procédé de traitement

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL143717B (nl) 1970-11-11 1974-10-15 Koninkl Papierfabrieken Van Ge Werkwijze voor het vervaardigen van een glasvezelvlies voor isolatieplaten en op deze wijze verkregen glasvezelvlies en isolatieplaat.
US3937865A (en) 1970-11-11 1976-02-10 Koninklijke Papierfabrieken Van Gelder Zonen N.V. Reinforced plastics carrier for printed circuits
KR100666052B1 (ko) * 2004-02-12 2007-01-09 조극래 원적외선이용한 건조장치
US20100143684A1 (en) 2004-06-18 2010-06-10 Owens Corning Fibrous veil impregnated with surface finish formulation
US7790240B2 (en) * 2007-09-13 2010-09-07 Johns Manville Permeable glass mat and method of preparation
US9815954B2 (en) 2013-11-22 2017-11-14 Johns Manville System for producing a fully impregnated thermoplastic prepreg

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988003193A1 (fr) * 1986-10-31 1988-05-05 Imatran Voima Oy Procede et dispositif de sechage d'un materiau en bande mobile
WO2015117927A1 (fr) * 2014-02-05 2015-08-13 Solaronics S.A. Procédé pour sécher ou durcir un revêtement organique sur une plaque de verre
DE102016120933A1 (de) 2016-11-03 2018-05-03 Voith Patent Gmbh Verfahren zur Herstellung eines nassgelegten Vliesstoffes
WO2018142244A1 (fr) * 2017-02-02 2018-08-09 Destra Gmbh Procédé de traitement de matériaux fibreux et système mettant en œuvre ledit procédé de traitement

Also Published As

Publication number Publication date
DE102019117281B3 (de) 2020-06-18
US20200407909A1 (en) 2020-12-31
US11828021B2 (en) 2023-11-28

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