DE3420195C2 - - Google Patents
Info
- Publication number
- DE3420195C2 DE3420195C2 DE19843420195 DE3420195A DE3420195C2 DE 3420195 C2 DE3420195 C2 DE 3420195C2 DE 19843420195 DE19843420195 DE 19843420195 DE 3420195 A DE3420195 A DE 3420195A DE 3420195 C2 DE3420195 C2 DE 3420195C2
- Authority
- DE
- Germany
- Prior art keywords
- thermal
- mixture
- additives
- mechanical energy
- mass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/28—Starch
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
- D21F11/002—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines by using a foamed suspension
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/22—Proteins
Landscapes
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Nonwoven Fabrics (AREA)
Description
Die Erfindung betrifft ein Verfahren zum Herstellen von Däm material, insbesondere in Form von Platten oder Formkörpern, aus Altpapier und/oder Pappe, wobei dieses Ausgangsmaterial zuerst zu einer Fasermasse aufgearbeitet, dann mit Zusatzstoffen ver mischt und nach weiterer Verarbeitung ausgeformt wird.The invention relates to a method for producing insulation material, in particular in the form of plates or moldings Waste paper and / or cardboard, with this starting material first processed into a fiber mass, then ver with additives mixes and shaped after further processing becomes.
Dem Japanischen Patent 55-1 49 183 läßt sich ein Verfahren entnehmen, bei dem das Ausgangsmaterial nach üblicher Methode naß zerfasert wird, wobei das Zerschneiden der Papierfasern weitgehend vermieden werden soll. Der so erhaltenen wäßrigen Faserdispersion werden anorganische blasige Materialien wie z. B. Perlit zugesetzt. Nach einer Entwässerung und Trocknung des so erhaltenen Gemisches erhält man eine aus miteinander verfilzten Papierfasern und blasigen Mineralien bestehende Masse, die sich ohne Verwendung von Bindemitteln in eine ge wünschte Form bringen läßt. Wird das Gemisch in Platten-Zylin der- oder andere Formen eingespritzt und darin entwässert und getrocknet, so erhält man Schall- und Wärmeisoliermaterialien der jeweils gewünschten Form. Dies Material besitzt hohe Schall- und Wärmedämmeigenschaften bei niedrigem Gewicht.A method can be found in Japanese Patent 55-1 49 183 remove from which the starting material according to the usual method wet frayed, cutting the paper fibers should be largely avoided. The resulting aqueous Fiber dispersion will be inorganic blistered materials like e.g. B. Perlite added. After drainage and drying the mixture thus obtained is obtained from one another matted paper fibers and blistered minerals existing Mass, which is in a ge without the use of binders can bring desired shape. If the mixture is in plate cylin the or other forms injected and dewatered and dried, so you get sound and heat insulation materials the shape you want. This material has high sound and thermal insulation properties with low weight.
Gemäß einem älteren, jedoch nicht veröffentlichten Verfahren zum Herstellen von Material mit hohen Schall- und Wärmedämmei genschaften aus Altpapier und/oder Pappe wird das Ausgangsma terial ebenfalls zuerst in wäßrige Faserform aufgearbeitet. Die nasse Fasermasse wird dann mit Emulgatoren versehen und/oder mechanisch verschäumt und nach einer Verformung mit einem Kon servierungsmittel in Struktur und Form stabilisiert. Die aufge arbeitete Fasermasse kann vor ihrer Stabilisierung bei Unter druck getrocknet werden.According to an older but not published procedure for the production of material with high sound and heat insulation Properties from waste paper and / or cardboard become the starting measure material also first worked up in aqueous fiber form. The wet fiber mass is then provided with emulsifiers and / or mechanically foamed and after deformation with a con preservative stabilized in structure and shape. The up worked fiber mass before stabilizing at sub pressure dried.
Entsprechend einem älteren, jedoch ebenfalls nicht vorveröffent lichten Verfahren zum Herstellen von Platten, Formkörpern, o. dgl. unterschiedlicher Rohwichte aus Altpapier und/oder Karton wird das Rohmaterial zuerst trocken zerfasert, mit Bindemitteln versetzt, geformt, gegebenenfalls verdichtet und dann ausgehärtet. Dabei kann das Rohmaterial zerschreddert und dann im trocknen Zustand in einem Scheibenrefiner zu einer watteähnlichen Struktur zer fasert werden. Der Zusatz von Bindemitteln zum zerschredderten Altfasermaterial kann dabei vor oder während des Zerfaserungs vorganges erfolgen. Vor oder während der Aufbereitung können nicht zerfaserbare Komponenten abgetrennt werden. Die mit dem Bindemittel versetzten Fasern werden auf ein Sieb zur Bildung eines Vlieses gestreut, wobei den Fasern bei der Vliesbildung Wasser zugesetzt werden kann. Anschließend erfolgt eine Ver dichtung in einer Kaltpresse und darauf eine Trocknung unter Heißluft. Als Alternative ist es aber auch möglich, das Faser vlies in einer Heißpresse zu verdichten und dann auszuhärten.According to an older one, but also not pre-published light process for the production of plates, moldings, o. Different raw weights from waste paper and / or cardboard the raw material is first shredded dry using binders offset, shaped, compressed if necessary and then hardened. Here can shred the raw material and then dry it in a disc refiner to a cotton-like structure be frayed. The addition of binders to the shredded Waste fiber material can be used before or during fiberization operation. Can before or during processing components that cannot be defibrated are separated. The one with the Binder-mixed fibers are placed on a sieve for formation a fleece scattered, the fibers during the formation of the fleece Water can be added. Then a Ver seal in a cold press and then dry under Hot air. As an alternative, it is also possible to use the fiber compress the fleece in a hot press and then harden.
Ausgehend von dem eingangs erläuterten Verfahren liegt der Er findung die Aufgabe zugrunde, ohne Verwendung herkömmlicher Bindemittel Dämmaterial geringer Dichte mit hohen Schall-, Isolier- und Dämmeigenschaften kostengünstig herzustellen. Based on the procedure explained at the outset, the Er Finding the task without using conventional Binder insulation material of low density with high sound, Insulating and insulating properties inexpensive to manufacture.
Diese Aufgabe wird gemäß der Erfindung dadurch gelöst, daß als Zusatzstoffe plastifizierbare abgebaute Stärken, Mehlmischungen mit hohem Stärkeanteil oder Proteine untergemischt werden, und daß die Mischung dann durch thermische und mechanische Energieeinleitung im Extruder verdichtet und plastifiziert wird und daß beim Extruderaustritt die Masse durch Temperatur- und Druckabfall expandiert bzw. aufschäumt.This object is achieved according to the invention in that as Additives plasticizable degraded starches, flour mixtures with a high starch content or proteins are mixed in, and that the Mixing then by thermal and mechanical energy introduction in the Extruder compacted and is plasticized and that the mass at the extruder outlet expands due to temperature and pressure drop or foams.
Soweit erforderlich können aus dem Ausgangsmaterial vor oder während seiner weiteren Aufbereitung Fremdkörper ausgeschieden werden.If necessary, can be made from the starting material before or Foreign bodies excreted during its further processing will.
Die Zerfaserung des Ausgangsmaterials kann naß oder trocken er folgen. Dabei ist es erfindungsgemäß vorteilhaft, wenn die Faser masse vor oder während der Zumischung der Zusatzstoffe fein ver mahlen wird. Dies kann z. B. durch Verwendung von Refinern oder Schlagkreuzmühlen erfolgen.The defibration of the starting material can be wet or dry consequences. It is advantageous according to the invention if the fiber mass before or during the admixture of the additives will grind. This can e.g. B. by using refiners or Cross beater mills take place.
Das nasse oder pulverförmige Gemisch wird zweckmäßig in den be heizbaren Schneckenraum eines Extruders dosiert, dort durch Ro tation der Schnecken gefördert, verdichtet und durch kombinierte thermische und mechanische Energieeinleitung plastifiziert. Da bei können der Mischung vor oder während der thermischen und mechanischen Energieeinleitung weitere Rezepturbestandteile wie z. B. Farbstoffe oder Öle zugegeben werden.The wet or powdery mixture is conveniently in the be heatable screw chamber of an extruder, there by Ro tation of the screws promoted, compacted and by combined plasticized thermal and mechanical energy input. There at can the mixture before or during the thermal and mechanical energy introduction other recipe components such as e.g. B. dyes or oils are added.
Die dem Ausgangsmaterial zuzumischenden Zusatzstoffe dienen zur
Aufschäumung der Masse und ggf. auch zur Verbesserung ihrer
Elastizität. Es handelt sich um die filmbildenden Materialien:
abgebaute Stärken, Mehlmischungen mit hohem Stärkeanteil, Pro
teine.
The additives to be mixed into the starting material serve to foam the mass and possibly also to improve its elasticity. The film-forming materials are:
degraded starches, flour mixtures with a high starch content, proteins.
Durch gezielte Steuerung und Vorformung lassen sich verschiedene Formteile, Formkörper, Platten, Füllstoffe, o. dgl. mit gerin ger Dichte und hohen Schall-, Isolier- und Dämmeigenschaften herstellen. Durch weitere Zusätze und/oder nachfolgende Ober flächenbehandlung lassen sich eine verbesserte Feuchtigkeits- und Feuerresistenz, Schutz vor Mikroorganismen u. dgl. errei chen.Through targeted control and preforming, various can be Molded parts, moldings, sheets, fillers, or the like with gerin low density and high sound, insulation and insulation properties produce. Through further additions and / or subsequent waiters surface treatment can be improved moisture and fire resistance, protection against microorganisms u. the like chen.
In einem Ausführungsbeispiel wurden 50% Zellulose mit 50% Stärke gemischt. Die eine 20%ige Feuchtigkeit aufweisende Mischung wurde in einen beheizbaren Schneckenraum eines gleichlaufenden Doppelschneckenextruders dosiert. Die Durchlauftemperatur betrug 108°C; der Druck war auf etwa 30 bar eingestellt. Die spezi fische mechanische Energieeinleitung betrug ca. 0,3 Wh kg-1; und der Produktmassestrom erreichte unter diesen Bedingungen ca. 6 kg h-1. Es entstand ein aufgeschäumter Strang beim Aus tritt der Masse aus der Düse.In one embodiment, 50% cellulose was mixed with 50% starch. The mixture, which had a moisture content of 20%, was metered into a heatable screw space of a co-rotating twin-screw extruder. The flow temperature was 108 ° C; the pressure was set to about 30 bar. The specific mechanical energy input was about 0.3 Wh kg -1 ; and the product mass flow reached about 6 kg h -1 under these conditions. A foamed strand was formed when the mass emerged from the nozzle.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19843420195 DE3420195A1 (en) | 1984-05-30 | 1984-05-30 | Process for producing insulating material from scrap paper and/or cardboard |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19843420195 DE3420195A1 (en) | 1984-05-30 | 1984-05-30 | Process for producing insulating material from scrap paper and/or cardboard |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3420195A1 DE3420195A1 (en) | 1985-12-12 |
DE3420195C2 true DE3420195C2 (en) | 1987-06-25 |
Family
ID=6237241
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19843420195 Granted DE3420195A1 (en) | 1984-05-30 | 1984-05-30 | Process for producing insulating material from scrap paper and/or cardboard |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3420195A1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4008862C1 (en) * | 1990-03-20 | 1991-04-11 | Friedrich 2807 Achim De Priehs | |
DE9411796U1 (en) * | 1994-07-21 | 1995-11-23 | Killmer, Erika, 45355 Essen | Mineral, fiber-reinforced composite material |
US6030673A (en) | 1992-11-25 | 2000-02-29 | E. Khashoggi Industries, Llc | Molded starch-bound containers and other articles having natural and/or synthetic polymer coatings |
DE19855283A1 (en) * | 1998-11-24 | 2000-05-25 | Flora Naturprodukte & Technolo | Compostable shaped articles, e.g. plant trays or pots, obtained by molding aqueous mixture containing protein, vegetable fibers, minerals and nutrients |
DE102012015539A1 (en) | 2012-08-06 | 2014-05-15 | Universität Bremen | Foam material useful as insulation board and/or lightweight panel, comprises cellulose, at least one natural and starch-free binder, and optionally at least one additive |
DE102017111139A1 (en) | 2017-05-22 | 2018-11-22 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Process for the preparation of porous moldings |
US11255051B2 (en) | 2017-11-29 | 2022-02-22 | Kimberly-Clark Worldwide, Inc. | Fibrous sheet with improved properties |
US11313061B2 (en) | 2018-07-25 | 2022-04-26 | Kimberly-Clark Worldwide, Inc. | Process for making three-dimensional foam-laid nonwovens |
US11591755B2 (en) | 2015-11-03 | 2023-02-28 | Kimberly-Clark Worldwide, Inc. | Paper tissue with high bulk and low lint |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4882114A (en) * | 1984-01-06 | 1989-11-21 | The Wiggins Teape Group Limited | Molding of fiber reinforced plastic articles |
GB8612813D0 (en) * | 1986-05-27 | 1986-07-02 | Wiggins Teape Group Ltd | Layer forming technique |
GB8618736D0 (en) * | 1986-07-31 | 1986-09-10 | Wiggins Teape Group Ltd | Electro magnetic interference shielding |
US5215627A (en) * | 1986-07-31 | 1993-06-01 | The Wiggins Teape Group Limited | Method of making a water laid fibrous web containing one or more fine powders |
GB8618729D0 (en) * | 1986-07-31 | 1986-09-10 | Wiggins Teape Group Ltd | Fibrous structure |
GB8618726D0 (en) * | 1986-07-31 | 1986-09-10 | Wiggins Teape Group Ltd | Thermoplastics material |
GB8618727D0 (en) * | 1986-07-31 | 1986-09-10 | Wiggins Teape Group Ltd | Thermoplastic sheets |
US5242749A (en) * | 1987-03-13 | 1993-09-07 | The Wiggins Teape Group Limited | Fibre reinforced plastics structures |
GB8705954D0 (en) * | 1987-03-13 | 1987-04-15 | Wiggins Teape Group Ltd | Plastics structures |
GB8818425D0 (en) * | 1988-08-03 | 1988-09-07 | Wiggins Teape Group Ltd | Plastics material |
AT398754B (en) * | 1991-08-13 | 1995-01-25 | Norbert Dipl Ing Dr Mundigler | Shaped body having a light structure, process for producing it and also use of an apparatus for carrying out the process |
DE4342514C2 (en) * | 1993-12-09 | 2001-08-02 | Juergen Volk | Recyclable or biodegradable waste paper extrudates |
DE4404322A1 (en) * | 1994-02-11 | 1995-08-17 | Schweitzer Jakob | Process for the production of foamed material from waste paper and the like the like |
US5707579A (en) * | 1994-02-11 | 1998-01-13 | Schweitzer, Vodermair & Schimmer-Wottrich Gbr | Process for producing foamed material from waste paper and the like |
DE29500065U1 (en) * | 1995-01-10 | 1995-06-08 | Pacurar, Ananie, 96472 Rödental | HLR (hard, light and recyclable) cardboard |
EP0740990A3 (en) * | 1995-05-02 | 1997-05-28 | Schweitzer Jacob | Process for defining the various properties of cellulose containing foams |
DE19546295A1 (en) * | 1995-12-12 | 1997-06-19 | Schweitzer Jacob | Prodn. of cellulose-based foam prods. with defined properties |
DE19546296A1 (en) * | 1995-05-02 | 1996-11-07 | Schweitzer Jacob | Prodn. of cellulose-based foam prods. with defined properties |
DE19734300A1 (en) * | 1997-08-08 | 1999-02-11 | Friedrich Priehs | Process and mold for producing molded parts from biopolymers |
DE102004033719A1 (en) * | 2004-07-13 | 2006-02-16 | Uvex Arbeitsschutz Gmbh | Earplug is made of a biopolymer (especially of a paper foam) rather than of polyurethane foam so as to allow for eco-friendly disposal |
-
1984
- 1984-05-30 DE DE19843420195 patent/DE3420195A1/en active Granted
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4008862C1 (en) * | 1990-03-20 | 1991-04-11 | Friedrich 2807 Achim De Priehs | |
US6030673A (en) | 1992-11-25 | 2000-02-29 | E. Khashoggi Industries, Llc | Molded starch-bound containers and other articles having natural and/or synthetic polymer coatings |
DE9411796U1 (en) * | 1994-07-21 | 1995-11-23 | Killmer, Erika, 45355 Essen | Mineral, fiber-reinforced composite material |
DE19855283A1 (en) * | 1998-11-24 | 2000-05-25 | Flora Naturprodukte & Technolo | Compostable shaped articles, e.g. plant trays or pots, obtained by molding aqueous mixture containing protein, vegetable fibers, minerals and nutrients |
DE19855283B4 (en) * | 1998-11-24 | 2005-12-29 | Flora-Naturprodukte & Technologiesysteme Gmbh | Process for the production of moldings |
DE102012015539A1 (en) | 2012-08-06 | 2014-05-15 | Universität Bremen | Foam material useful as insulation board and/or lightweight panel, comprises cellulose, at least one natural and starch-free binder, and optionally at least one additive |
US11591755B2 (en) | 2015-11-03 | 2023-02-28 | Kimberly-Clark Worldwide, Inc. | Paper tissue with high bulk and low lint |
DE102017111139A1 (en) | 2017-05-22 | 2018-11-22 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Process for the preparation of porous moldings |
US10619303B2 (en) | 2017-05-22 | 2020-04-14 | Fraunhofer-Gesselschaft zur Förderung der angewandten Forschung E.V. | Method for production of porous moldings |
US11255051B2 (en) | 2017-11-29 | 2022-02-22 | Kimberly-Clark Worldwide, Inc. | Fibrous sheet with improved properties |
US12043963B2 (en) | 2017-11-29 | 2024-07-23 | Kimberly-Clark Worldwide, Inc. | Fibrous sheet with improved properties |
US11313061B2 (en) | 2018-07-25 | 2022-04-26 | Kimberly-Clark Worldwide, Inc. | Process for making three-dimensional foam-laid nonwovens |
US11788221B2 (en) | 2018-07-25 | 2023-10-17 | Kimberly-Clark Worldwide, Inc. | Process for making three-dimensional foam-laid nonwovens |
Also Published As
Publication number | Publication date |
---|---|
DE3420195A1 (en) | 1985-12-12 |
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Legal Events
Date | Code | Title | Description |
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OP8 | Request for examination as to paragraph 44 patent law | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition |