EP3680386A1 - Procédé et dispositif d'élimination et/ou de destruction d'un empois sur et/ou des fibres et/ou des filaments - Google Patents

Procédé et dispositif d'élimination et/ou de destruction d'un empois sur et/ou des fibres et/ou des filaments Download PDF

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Publication number
EP3680386A1
EP3680386A1 EP20400001.2A EP20400001A EP3680386A1 EP 3680386 A1 EP3680386 A1 EP 3680386A1 EP 20400001 A EP20400001 A EP 20400001A EP 3680386 A1 EP3680386 A1 EP 3680386A1
Authority
EP
European Patent Office
Prior art keywords
electron beams
source
generating
textile
spatial
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.)
Granted
Application number
EP20400001.2A
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German (de)
English (en)
Other versions
EP3680386B1 (fr
Inventor
Björn Fischer
Barbara Schimanz
Georg Jurgeleit
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.)
Evonta-Technology GmbH
Saechsisches Textilforschungsinstitut STFI eV
Original Assignee
Evonta-Technology GmbH
Saechsisches Textilforschungsinstitut STFI eV
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Publication of EP3680386A1 publication Critical patent/EP3680386A1/fr
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Publication of EP3680386B1 publication Critical patent/EP3680386B1/fr
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Classifications

    • 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
    • D06M10/008—Treatment with radioactive elements or with neutrons, alpha, beta or gamma rays

Definitions

  • the invention relates to methods and devices for removing and / or damaging size on and / or fibers and / or filaments from flat textile structures or spatial textile structures for better adhesion when reinforcing a composite material.
  • high-strength materials such as glass, carbon or basalt are used as reinforcing fibers in the manufacture of fiber composite materials.
  • the fibers / filaments are coated with a size / finishing agent.
  • the size has an oily or silicone-like consistency and wraps around the fibers / filaments like a coat. This reduces the breaking behavior of the fibers / filaments. It enables the fibers / filaments to be bent in smaller radii and to slide with less friction with one another.
  • the publication DE 30 00 582 A1 discloses a method of grafting a fire retardant additive onto flammable materials, fibers and other materials.
  • a solution of the additive is applied to the substances, the fibers or the materials and at least partially dried.
  • the material is then exposed to an electron beam so that the fire retardant additive is grafted onto the flammable material, the flammable fiber or the flammable material.
  • the electron beam leads to a radiation-induced chemical adhesive bond and surface coating hardening of the fire-retardant additive.
  • the publication DE 195 46 187 C2 includes a method and a device for plasma-assisted surface treatment, in particular for plasma sterilization, the surface modification of plastics and the deposition of polymer layers.
  • a plasma of uniform density is used, which is formed from a supplied reactive gas between a window in front of an electron band emitter and the material.
  • a method for desizing cellulosic textile materials for subsequent bleaching or dyeing is known.
  • the textile material is desized with an aqueous Medium impregnated, pressed, exposed to electron beams and washed.
  • the aqueous medium for impregnation and thus for desizing contains sodium hydroxide and a wetting agent.
  • the invention specified in claims 1, 3 and 11 is based on the object of providing composite materials with a fixed connection between fibers and / or filaments of sheet-like textile structures or spatial textile structures for reinforcing the composite material and a matrix of the composite material.
  • the methods and devices for removing and / or damaging size on and / or fibers and / or filaments from sheet-like textile structures or spatial textile structures for better adhesion when reinforcing a composite material are distinguished in particular by the fact that composite materials with a firm connection between fibers and / or filaments of sheet-like textile structures or spatial textile structures to reinforce the composite material and a matrix of the composite material can be provided.
  • the flat textile structure or spatial textile structure is subjected to accelerated electrons from at least one source for generating electron beams as a band emitter for producing an electron curtain.
  • At least one source for generating electron beams is arranged at a distance from the sheet-like textile structure or spatial textile structure as a band emitter for generating an electron curtain such that accelerated electrons reach the surface of the flat textile structure or spatial textile structure from the source for generating electron beams .
  • the electron beam process used works by means of accelerated electrons based on the principle of the Braun tube.
  • the electrons By applying an electrical voltage between the cathode and anode, the electrons are accelerated in the direction of the exit window, pass through the exit window and reach the surface of fibers and / or filaments of the respective structure.
  • the electrons When the electrons come into contact with the fibers and / or filaments, they convert almost all of their kinetic energy into heat through collision processes.
  • the electrons penetrate to a certain depth. Adhesive deposits or finishes are removed and / or damaged.
  • the penetration depth of the electrons can be controlled via the variation of the acceleration intensity, so that deposits or sizes of fibers and / or filaments in the interior of the respective structure can also be removed.
  • the source for the generation of electron beams is a band emitter with a very thin electron exit window, so that a flat and continuous treatment of the respective structure is given.
  • a plurality of radiators can also be arranged in order to be able to act on larger widths and / or more sides of the structure.
  • a particular advantage when using electron beams to remove and / or damage sizing on fibers and / or filaments is the low use of energy compared to known heat processes for burning sizing, such as by means of pyrolysis furnaces.
  • the output can be 50 kW to 100 kW.
  • the source for generating electron beams can require one tenth the power of an oven.
  • the thermal treatment in the furnace is still a discontinuous process. Each time the furnace is loaded and opened, it must be heated up or reheated.
  • the use of a source for generating electron beams leads to a continuous process.
  • the structure can continuously at the source are guided past so that electron beams and thus electrons continuously reach the moving surface of the structure.
  • the electron beam process causes more uniform emissions of gaseous waste products from the sizes, which can be continuously extracted and filtered during the movement of the structure.
  • the use of the electron beam method ensures that the removal and / or damage of sizes on fibers and / or filaments of textile structures is easier, economically more economical and more environmentally friendly than using a furnace. It is also possible to control the penetration depth and electron density per treatment area and thus achieve an optimal treatment depending on individual material properties.
  • the structure as a flat textile structure or spatial textile structure can in particular be a woven fabric, a scrim, a nonwoven fabric, a yarn sheet and / or a filament sheet.
  • the structure is guided past two sources for generating electron beams which are arranged at a distance from one another, so that the electron beams of the sources for generating electron beams reach two opposite surfaces of the structure.
  • two sources for generating electron beams are arranged at a distance from one another.
  • the structure is or will continue to be guided and / or transported between the sources such that the electron beams from the source are used to generate Electron beams reach two opposite surfaces of the structure.
  • the structure is or are located on and / or on at least one driven transport device.
  • the source for generating electron beams and the drive of the transport device are connected to a control device according to the development of claim 6.
  • At least one device for extracting waste products is arranged downstream of the source or sources for generating electron beams.
  • the waste products can easily be removed continuously and immediately after they are created.
  • the source for generating electron beams and at least the exposed surface of the structure are located in a chamber with a vacuum or a protective gas.
  • the source for generating electron beams and at least the exposed surface of the structure are in a chamber with an entrance and an exit for the structure, so that it can be transported continuously through the chamber.
  • the structure is a woven fabric, a scrim, a nonwoven fabric, a yarn sheet and / or a filament sheet.
  • the flat textile structure 1 is only referred to as structure 1.
  • a device for removing and / or damaging the size of fibers and / or filaments of structure 1 for better adhesion when reinforcing a composite material essentially consists of at least one source 2 for generating electron beams as a band emitter for producing an electron curtain.
  • the Fig. 1 shows a device for removing and / or damaging the size of fibers and / or filaments of structures 1 for better adhesion when reinforcing a composite in a basic side view.
  • sources 2 for generating electron beams are arranged at a distance from the structure 1 as band emitters for generating an electron curtain in such a way that accelerated electrons from the sources 2 reach the surfaces of the structure 1 for generating electron beams.
  • the structure 1 is on and / or at least a driven transport device. This can be driven transport rollers 3, for example, also in connection with carriers.
  • At least one device 4 for sucking off waste products 5 is arranged downstream in the transport direction after the sources 2 for generating electron beams.
  • the sources 2 for generating electron beams, the at least one drive of the transport rollers 3 and the device 4 for suctioning off waste products 5 are connected to a control device 6.
  • a source 2 for generating electron beams in the form of an electron curtain is a known triode system with a cathode, a control electrode and an anode in the form of a Wehnelt cylinder.
  • the cathode and the anode are connected to a high voltage source with a voltage of, for example, equal to or greater than 60 kV to less than or equal to 300 kV.
  • the Fig. 2 shows a device for removing and / or damaging the size of fibers and / or filaments of structures 1 for better adhesion when reinforcing a composite material in a basic front view.
  • a plurality of sources 2 for generating electron beams are arranged below and above the structure 1 across the width of the structure 1.
  • the electron beams from the sources 2 for generating electron beams thus reach the opposite surfaces of the structure 1.
  • the sources 2 for generating electron beams and at least the exposed surfaces of the structure 1 can be located in a chamber with a vacuum or a protective gas.
  • the chamber can advantageously have an entrance and an exit for the structure 1, so that it can be transported continuously through the chamber.
  • the structure 1 can be a woven fabric, a scrim, a nonwoven fabric, a yarn sheet and / or a filament sheet.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Nonwoven Fabrics (AREA)
EP20400001.2A 2019-01-12 2020-01-10 Procédé et dispositif d'élimination et/ou de destruction d'un empois sur et/ou des fibres et/ou des filaments Active EP3680386B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019000251.2A DE102019000251A1 (de) 2019-01-12 2019-01-12 Verfahren und Einrichtung zum Entfernen und/oder Schädigen von Schlichte auf und/oder von Fasern und/oder Filamenten

Publications (2)

Publication Number Publication Date
EP3680386A1 true EP3680386A1 (fr) 2020-07-15
EP3680386B1 EP3680386B1 (fr) 2022-07-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20400001.2A Active EP3680386B1 (fr) 2019-01-12 2020-01-10 Procédé et dispositif d'élimination et/ou de destruction d'un empois sur et/ou des fibres et/ou des filaments

Country Status (2)

Country Link
EP (1) EP3680386B1 (fr)
DE (1) DE102019000251A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202022002307U1 (de) 2022-01-23 2022-11-16 Evonta-Technology Gmbh Halbzeug mit Fasern in einer ungehärteten Kunststoffmatrix, Bauteil oder Werkstück aus dem Halbzeug und Einrichtung zur Beaufschlagung von Fasern mit Elektronenstrahlen wenigstens eines Elektronen-Flächenstrahlers

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3000582A1 (de) 1980-01-07 1981-07-09 Energy Sciences, Inc., Woburn, Mass. Verfahren zum aufpfropfen eines feuerhemmenden zusatzstoffes auf entflammbare stoffe, fasern und andere werkstoffe
DE3132405A1 (de) 1981-08-17 1983-03-03 Forschungsinstitut für Textiltechnologie, DDR 9010 Karl-Marx-Stadt Verfahren und einrichtung zur kantenverfestigung von flaechengebilden
RU2064024C1 (ru) 1993-08-30 1996-07-20 Центральный научно-исследовательский институт хлопчатобумажной промышленности Способ расшлихтовки целлюлозосодержащего текстильного материала
DE19546187C2 (de) 1995-12-11 1999-04-15 Fraunhofer Ges Forschung Verfahren und Einrichtung zur plasmagestützten Oberflächenbehandlung
US20170226689A1 (en) * 2008-04-30 2017-08-10 Xyleco, Inc. Textiles and methods and systems for producing textiles
CN207259839U (zh) * 2017-09-04 2018-04-20 安徽职业技术学院 微波等离子体辅助涤纶织物退浆装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3000582A1 (de) 1980-01-07 1981-07-09 Energy Sciences, Inc., Woburn, Mass. Verfahren zum aufpfropfen eines feuerhemmenden zusatzstoffes auf entflammbare stoffe, fasern und andere werkstoffe
DE3132405A1 (de) 1981-08-17 1983-03-03 Forschungsinstitut für Textiltechnologie, DDR 9010 Karl-Marx-Stadt Verfahren und einrichtung zur kantenverfestigung von flaechengebilden
RU2064024C1 (ru) 1993-08-30 1996-07-20 Центральный научно-исследовательский институт хлопчатобумажной промышленности Способ расшлихтовки целлюлозосодержащего текстильного материала
DE19546187C2 (de) 1995-12-11 1999-04-15 Fraunhofer Ges Forschung Verfahren und Einrichtung zur plasmagestützten Oberflächenbehandlung
US20170226689A1 (en) * 2008-04-30 2017-08-10 Xyleco, Inc. Textiles and methods and systems for producing textiles
CN207259839U (zh) * 2017-09-04 2018-04-20 安徽职业技术学院 微波等离子体辅助涤纶织物退浆装置

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Publication number Publication date
EP3680386B1 (fr) 2022-07-06
DE102019000251A1 (de) 2020-07-16

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