DE10013958A1 - Production of flexible, flat filter, e.g. for protective clothing, comprises printing air-permeable textile, with thermoplastic dispersion, evaporating off water, applying sorbents and cover layer and hot laminating - Google Patents

Production of flexible, flat filter, e.g. for protective clothing, comprises printing air-permeable textile, with thermoplastic dispersion, evaporating off water, applying sorbents and cover layer and hot laminating

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Publication number
DE10013958A1
DE10013958A1 DE2000113958 DE10013958A DE10013958A1 DE 10013958 A1 DE10013958 A1 DE 10013958A1 DE 2000113958 DE2000113958 DE 2000113958 DE 10013958 A DE10013958 A DE 10013958A DE 10013958 A1 DE10013958 A1 DE 10013958A1
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Germany
Prior art keywords
hot
adsorbents
water
flexible
plastic
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Withdrawn
Application number
DE2000113958
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German (de)
Inventor
Ruiter Ernest De
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE2000113958 priority Critical patent/DE10013958A1/en
Publication of DE10013958A1 publication Critical patent/DE10013958A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/2803—Sorbents comprising a binder, e.g. for forming aggregated, agglomerated or granulated products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
    • B01J20/28004—Sorbent size or size distribution, e.g. particle size
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/28016—Particle form
    • B01J20/28019—Spherical, ellipsoidal or cylindrical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/28026—Particles within, immobilised, dispersed, entrapped in or on a matrix, e.g. a resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/28033—Membrane, sheet, cloth, pad, lamellar or mat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
    • B01J20/3214—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the method for obtaining this coating or impregnating
    • B01J20/3223—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the method for obtaining this coating or impregnating by means of an adhesive agent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/14—Layered products comprising a layer of synthetic resin next to a particulate layer
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N7/00—Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material

Abstract

Production of a flexible, flat filter comprises printing an air-permeable substrate, preferably a textile, with a dispersion of a thermoplastic. Water is then evaporated off and, optionally after further heating, hot sorbents are scattered over it. Excess sorbent is removed and a cover layer applied . The whole article is then passed through a hot laminating machine.

Description

Die Anmeldung betrifft ein Verfahren zur Herstellung eines Flächenfilters, bestehend aus einem textilen Trägermaterial, darauf fixierten körnigen Adsorbentien und in den meisten Fällen einer Abdeckung für letztere. An­ wendungen und Stand der Technik finden sich in der Hauptanmeldung.The application relates to a method for producing a surface filter, consisting of a textile carrier material, granular fixed on it Adsorbents and in most cases a cover for the latter. On Applications and the state of the art can be found in the main application.

Das in der Hauptanmeldung beschriebene Verfahren umfasst folgende Stufen:
The procedure described in the main application comprises the following stages:

  • a) Das Trägermaterial wird mit einer ausgesuchten Schmelzkleberdispersion bedruckt und getrocknet; es liegen deutlich voneinander getrennte halb­ kugelförmige Schmelzkleberhäufchen vor.a) The carrier material is with a selected hot melt adhesive dispersion printed and dried; there are clearly separated half spherical piles of hot melt adhesive.
  • b) Diese Trägerbahn wird mit einem Überschuss körniger oder kugelförmiger Adsorbentien bedeckt; in einer Flachkaschiermaschine werden die Adsor­ bentien thermisch fixiert und anschliessend wird der Überschuss entfernt.b) This carrier web becomes granular or spherical with an excess Adsorbents covered; in a flat laminating machine the adsor bentien thermally fixed and then the excess is removed.
  • c) Im Normalfall werden die Adsorbentien in einem zweiten Kaschiervorgang mit der Abdeckung versehen.c) The adsorbents are normally in a second lamination process provided with the cover.

Das Verfahren beinhaltet demnach zwei Kaschierungen.The process therefore includes two laminations.

Es war Ziel der vorliegenden Zusatzanmeldung, das Verfahren so zu vereinfachen, dass nur einmal kaschiert werden muss.The aim of this additional application was to simplify the procedure that only has to be laminated once.

Im neuen Verfahren wird, wie in der Hauptanmeldung, das Trägermaterial mit einer ausgesuchten Schmelzkleberdispersion bedruckt und getrocknet, so dass deutlich voneinander abgetrennte, halbkugelförmige Schmelzkleberhäufchen mit einem Durchmesser von ca. 0,5 mm vorliegen. Die nach der Trocknung noch heisse Warenbahn wird, gegebenenfalls nach zusätzlichem Aufheizen mit einem Strahler, mit einem Überschuss an heissen, körnigen (vorzugsweise kugelförmigen) Adsorbentien bestreut, die sofort haften. Dank der halb­ kugelförmigen Kleberhäufchen ist auch eine seitliche Anbindung vorhanden. Die nicht haftenden Adsorbentien werden abgeklopft oder/und abgesaugt. Die auf diese Weise mit Adsorbentien verstehene Trägerbahn wird schliesslich bei 160/180°C zusammen mit einer geeigneten, mit Schmelzkleberpunkten ver­ sehenen Abdeckung durch eine Flachkaschiermaschine gefahren. Das neue Ver­ fahren benötigt demnach nur einen Kaschiervorgang und ist dementsprechend wirtschaftlicher.In the new procedure, as in the main application, the carrier material is also a selected hot melt adhesive dispersion printed and dried so that clearly separated, hemispherical piles of hot melt adhesive with  0.5 mm in diameter. The one after drying hot material web is, if necessary after additional heating with a heater with an excess of hot, granular (preferably spherical) adsorbents sprinkled, which adhere immediately. Thanks to the half spherical piles of adhesive also have a side connection. The non-adherent adsorbents are knocked off and / or suctioned off. The carrier web understood in this way with adsorbents finally becomes at 160/180 ° C together with a suitable, with hot melt adhesive points ver seen cover driven by a flat laminating machine. The new ver Driving therefore only requires a lamination process and is accordingly more economical.

Beispielexample

Das Beispiel beschreibt einen Technikumsversuch. Eine 50 cm breite Warenbahn eines ca. 100 g/m2 schweren BW-Gewebes wurde auf einer Zimmer-Labor-Druck­ maschine unter Verwendung einer 25 mesh Rotationsdruckschablone mit der etwas eingedickten Dispersion Plextol B 500 (Polymer-Latex, MARL) bedruckt. Auflage nass 80 g/m2. Das bedruckte Material wurde bei 120°C im Rahmen ge­ trocknet. Die noch heisse Ware wurde vollflächig mit einer auf ca. 200°C auf­ geheizten Kugelkohle (Durchmesser 0,3-0,7 mm, mittlerer Durchmesser 0,5 mm) der Fa. Kureha (Japan) bestreut. Nach Abkühlen auf ca. 100°C wurde der Über­ schuss abgerüttelt. Kohleauflage: 205 g/m2. Anschliessend wurde die Kohle­ schicht mit einem 21 g/m2 schweren Polyestervlies, das mit 16 g/m2 Schmelz­ kleber punktförmig beaufschlagt war und von der Fa. KUFNER stammte, abgedeckt und der "Sandwich" auf einer Laminiermaschine der Fa. Kannegiesser bei 180°C unter Druck laminiert. The example describes a pilot project. A 50 cm wide web of approximately 100 g / m 2 heavy BW fabric was printed on a room laboratory printing machine using a 25 mesh rotary printing stencil with the slightly thickened dispersion Plextol B 500 (polymer latex, MARL). Edition wet 80 g / m 2 . The printed material was dried at 120 ° C in the frame. The still hot product was sprinkled over the entire surface with a spherical carbon heated to approx. 200 ° C. (diameter 0.3-0.7 mm, average diameter 0.5 mm) from Kureha (Japan). After cooling to about 100 ° C, the excess was shaken off. Charcoal layer: 205 g / m 2 . The coal layer was then covered with a 21 g / m 2 heavy polyester fleece, which was punctiformly applied with 16 g / m 2 hot melt adhesive and came from the company KUFNER, and the "sandwich" on a laminating machine from the company Kannegiesser at 180 ° C laminated under pressure.

Das Beispiel darf nicht als Einschränkung gesehen werden. So können Trägermaterialien aus diversen Kunstfasern mit sehr unterschiedlichen Flächengewichten zur Anwendung kommen. Für Tapeten mit adsorbierenden Eigenschaften zur Bekämpfung von aus Gebäudeteilen ausgetretenen Umwelt­ giften wird oft ein Glasgewebe als Träger für die Adsorbentien eingesetzt. Die Adsorbentien sind normalerweise Aktivkohle, die körnig oder kugelför­ mig sein kann. Übliche Teilchengrössen reichen von 0,2-1,0 mm, obschon solche von 0,3-0,75 bevorzugt werden. Eine Alternative zur Aktivkohle sind karbonisierte und aktivierte Polymere. Auch saure oder basische Ionenaus­ tauscher können für spezielle Problemlösungen von Nutzen sein. Für die Ab­ deckung der Adsorptionsschicht eignen sich wegen der geringeren Kosten leichte Vliese, die mit handelsüblichen Schmelzklebern beaufschlagt sind und die voll ausgerüstet bezogen werden können. Für Materialien, die zur Abdeckung von Gegenständen oder Gebäudeteilen benutzt werden, kann die Rückseite zusätzlich mit einem punktförmig aufgedruckten Haftkleber versehen werden.The example should not be seen as a limitation. So can Backing materials made of various synthetic fibers with very different Basis weights are used. For wallpapers with adsorbent Properties for combating the environment that has leaked out of building parts a glass fabric is often used as a carrier for the adsorbents. The adsorbents are usually activated carbon, which are granular or spherical can be. Common particle sizes range from 0.2-1.0 mm, although those of 0.3-0.75 are preferred. An alternative to activated carbon are carbonized and activated polymers. Also acidic or basic ions Exchangers can be useful for special problem solutions. For the Ab Covering the adsorption layer is easy because of the lower costs Nonwovens which are coated with commercially available hot melt adhesives and which are full equipped can be obtained. For materials used to cover Objects or parts of buildings can be used, the back can also be provided with a pressure-sensitive adhesive that is printed in punctiform form.

Claims (6)

1. Verfahren zur Herstellung eines geschmeidigen, biegsamen Flächen­ filters, dadurch gekennzeichnet, dass ein vorzugsweise textiler, luftdurchlässiger Träger zuerst mit der Dispersion eines thermoplasti­ schen Kunststoffes punktförmig bedruckt wird, nach Verdampfen des Wassers in noch heissem Zustand, gegebenenfalls nach Wiederaufheizen, mit heissen Adsorbentien im Überschuss vollflächig besteut wird und der Überschuss nach Abkühlung entfernt wird, danach die Adsorbentienschicht mit einem mit Schmelzkleberpunkten versehenen Abdeckungsmaterial abge­ deckt wird und schliesslich das gesamte Material (Träger, Adsorbentien, Abdeckung auf einer Flachkaschiermaschine) thermisch zusammenkaschiert wird.1. A process for producing a supple, flexible surface filter, characterized in that a preferably textile, air-permeable carrier is first printed in spots with the dispersion of a thermoplastic plastic, after evaporation of the water in a hot state, optionally after reheating, with hot adsorbents the entire surface is covered with excess and the excess is removed after cooling, then the adsorbent layer is covered with a covering material provided with hot-melt adhesive points and finally the entire material (carrier, adsorbents, cover on a flat laminating machine) is thermally laminated together. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der thermo­ plastische Kunststoff ein vorzugsweise selbstvernetzendes Acrylat ist.2. The method according to claim 1, characterized in that the thermo plastic plastic is a preferably self-crosslinking acrylate. 3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der thermo­ plastische Kunststoff ein Acrylat ist, dem handelsübliches Schmelz­ kleberpulver zugegeben ist.3. The method according to claim 1, characterized in that the thermo plastic plastic is an acrylate, the commercially available enamel glue powder is added. 4. Verfahren nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Adsorbens eine körnige, insbesondere kugelför­ mige Aktivkohle mit Teilchengrössen von 0,2-1,0 mm, vorzugsweise 0,3-0,75 mm, ist und in einer Menge von 50-250 g, insbesondere 150-220 g, vorliegt. 4. The method according to one or more of the preceding claims, characterized characterized in that the adsorbent is granular, in particular spherical Mige activated carbon with particle sizes of 0.2-1.0 mm, preferably 0.3-0.75 mm, and in an amount of 50-250 g, in particular 150-220 g.   5. Verfahren nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der zur Fixierung der Adsorbentien benötigte Kleber in einer Menge von 25-60 g (trocken), insbesondere 30-40 g, und in Form von 5-100 halbkugelförmigen Punkten/cm2, bevorzugterweise 25-100 Punkten/cm2, vorliegt.5. The method according to one or more of the preceding claims, characterized in that the adhesive required for fixing the adsorbents in an amount of 25-60 g (dry), in particular 30-40 g, and in the form of 5-100 hemispherical points / cm 2 , preferably 25-100 dots / cm 2 , is present. 6. Verwendung eines Flächenfilters nach einem oder mehreren der vorher­ gehenden Ansprüche für Schutzanzüge und Abdeckungen gegen chemische Gifte und Schadstoffe.6. Use a surface filter according to one or more of the above requirements for protective suits and covers against chemical Toxins and pollutants.
DE2000113958 2000-03-21 2000-03-21 Production of flexible, flat filter, e.g. for protective clothing, comprises printing air-permeable textile, with thermoplastic dispersion, evaporating off water, applying sorbents and cover layer and hot laminating Withdrawn DE10013958A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2000113958 DE10013958A1 (en) 2000-03-21 2000-03-21 Production of flexible, flat filter, e.g. for protective clothing, comprises printing air-permeable textile, with thermoplastic dispersion, evaporating off water, applying sorbents and cover layer and hot laminating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2000113958 DE10013958A1 (en) 2000-03-21 2000-03-21 Production of flexible, flat filter, e.g. for protective clothing, comprises printing air-permeable textile, with thermoplastic dispersion, evaporating off water, applying sorbents and cover layer and hot laminating

Publications (1)

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DE10013958A1 true DE10013958A1 (en) 2001-09-27

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DE2000113958 Withdrawn DE10013958A1 (en) 2000-03-21 2000-03-21 Production of flexible, flat filter, e.g. for protective clothing, comprises printing air-permeable textile, with thermoplastic dispersion, evaporating off water, applying sorbents and cover layer and hot laminating

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003000163A1 (en) * 2001-05-04 2003-01-03 Korma, S.P.A. Method and device for production of a number of laminates
WO2022129098A1 (en) * 2020-12-15 2022-06-23 Nonwovenn Ltd Filter material

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003000163A1 (en) * 2001-05-04 2003-01-03 Korma, S.P.A. Method and device for production of a number of laminates
US7241358B2 (en) 2001-05-04 2007-07-10 Korma, S.P.A. Method and device for production of a number of laminates
WO2022129098A1 (en) * 2020-12-15 2022-06-23 Nonwovenn Ltd Filter material

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