EP2009176A2 - Method for creating multilayer cardboard or packaging paper made from recycled paper - Google Patents
Method for creating multilayer cardboard or packaging paper made from recycled paper Download PDFInfo
- Publication number
- EP2009176A2 EP2009176A2 EP08158083A EP08158083A EP2009176A2 EP 2009176 A2 EP2009176 A2 EP 2009176A2 EP 08158083 A EP08158083 A EP 08158083A EP 08158083 A EP08158083 A EP 08158083A EP 2009176 A2 EP2009176 A2 EP 2009176A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- fiber fraction
- cardboard
- packaging paper
- paper
- backsheet
- 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- Withdrawn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
Images
Classifications
-
- 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
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
- D21D5/02—Straining or screening the pulp
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D99/00—Subject matter not provided for in other groups of this subclass
Definitions
- the invention relates to a method according to the preamble of claim 1.
- the present invention is directed to the production of multi-ply packaging paper or paperboard, including e.g. Paper or board machines with Mehrlagenstoffauflauf or more headboxes are used. In this case, the position of the cover fabric with fibers of greater length (long pulp) and the layers of the back and / or middle layer with fibers of short length (short fiber) is formed.
- a packaging paper produced by means of the method or a correspondingly produced cardboard has a cover layer whose composition of matter has the advantage of good optical quality. Since the short fiber fraction formed has an increased number of fibers and a reduced average fiber length in comparison to the starting material, it particularly fulfills the requirements for a blanket layer. Opacity, printability and surface appearance are particularly important for this layer.
- the method shown process represents the essential process steps of the invention with reference to an example.
- the pulp solution 1 in which the waste paper M is treated together with water W so that an aqueous pulp suspension S forms.
- a more or less complex cleaning 2 of the pulp suspension S is necessary. What effort is required to produce a clean pulp is known per se.
- the cleaning can be omitted.
- the subsequent fractionation 3 two fiber fractions are formed, of which the short fiber fraction F1 is enriched with short fibers and the long fiber fraction F2 with long fibers.
- the fractions F1 and F2 thus formed may possibly be further processed in the subsequent part of the stock preparation 4 and then arrive in the two machine huts 5 and 6, respectively.
- the paper machine 9 generates therefrom the cardboard or the packaging paper.
- the horizontally separated chambers are supplied via a fuel pump 7 with the short fiber fraction F1 from the machine chest 5 or via a fuel pump 8 with the long fiber fraction F2 from the machine chest 6.
- an upper material jet 11 containing the short fiber fraction F1 is formed and a lower substance jet 12 containing the long-fiber fraction F2.
- the ceiling layer 13 (FIG. Fig. 2 ) and from the lower fabric jet 12, the backsheet 14th
- a particularly suitable fractionator for this purpose is a pressure sorter for wet sifting of the sort of a pressure sorter. This is the DE 199 13 515 A1 a specially designed slotted screen for such a fractionator removed. But even with highly efficient hydrocyclones, so-called cleaners, it is possible to carry out a fractionation according to fiber flexibility.
- Fig. 2 shows a two-ply packaging paper with a cover layer 13 and a rear side layer 14.
- the cover layer 13 is provided in many cases with an imprint 16.
- the upper side 15 of the cover layer 13 has a good printable surface due to the high short fiber content.
- Another advantage is the high opacity, which means that any existing impurities of the underlying layer or layers little disturb.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
Abstract
Description
Die Erfindung bezieht sich auf ein Verfahren gemäß Oberbegriff des Anspruchs 1.The invention relates to a method according to the preamble of claim 1.
Es ist bekannt, in mehrlagigen Papier- oder Kartonprodukten unterschiedliche Stoffsorten zu verwenden. Dabei kann man sowohl durch Wal der Rohstoffe, als auch in geeigneten Verfahrensschritten der Stoffaufbereitung gezielt Einfluss auf die später auf der Papiermaschine erzeugten Papier- oder Karton-Qualität nehmen. Auf diese Weise werden - wie an sich bekannt - den Wünschen entsprechend die Eigenschaften des Papier- oder Kartonproduktes gesteuert. Die vorliegende Erfindung zielt insbesondere auf die Erzeugung von mehrlagigem Verpackungspapier oder Karton, wozu z.B. Papier- oder Kartonmaschinen mit Mehrlagenstoffauflauf oder mehreren Stoffaufläufen verwendet werden. Dabei wird die Lage des Deckenstoffes mit Fasern größerer Länge (Langfaserstoff) und die Lagen der Rückseite und/oder Mittelschicht mit Fasern geringer Länge (Kurzfaserstoff) gebildet.It is known to use different types of fabrics in multi-ply paper or board products. In doing so, one can specifically influence the paper or board quality produced later on the paper machine, both by whale raw materials and in suitable processing steps of stock preparation. In this way - as is known - the wishes of the properties of the paper or cardboard product controlled. In particular, the present invention is directed to the production of multi-ply packaging paper or paperboard, including e.g. Paper or board machines with Mehrlagenstoffauflauf or more headboxes are used. In this case, the position of the cover fabric with fibers of greater length (long pulp) and the layers of the back and / or middle layer with fibers of short length (short fiber) is formed.
Bei der Wahl der einzusetzenden Rohstoffe spielen neben der Qualität auch ihre Kosten eine beträchtliche Rolle. Das Bestreben, möglichst preiswerte Rohstoffe zu verwenden, sowie abfallwirtschaftliche Gesichtspunkte führen dazu, dass in vielen Fällen gemischte Rohstoffe, z.B. Altpapiere, mit breitem Faserlängenspektrum in der Produktion eingesetzt werden sollen.In choosing the raw materials to be used, not only quality but also their costs play a significant role. The endeavor to use raw materials which are as inexpensive as possible, as well as waste management considerations, mean that in many cases mixed raw materials, e.g. Waste papers with a broad fiber length spectrum are to be used in production.
Es ist Aufgabe der Erfindung, ein Verfahren zu schaffen, mit dem es gelingt, die Qualität des Papiers oder Kartons auf besonders einfache und wirtschaftliche Art zu verbessern und/oder die Kosten zu senken.It is an object of the invention to provide a method with which it is possible to improve the quality of the paper or cardboard in a particularly simple and economical way and / or to reduce costs.
Diese Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst.This object is solved by the features of claim 1.
Ein mit Hilfe des Verfahrens hergestelltes Verpackungspapier oder ein entsprechend hergestellter Karton weist eine Deckenlage auf, deren Stoffzusammensetzung den Vorteil einer guten optischen Qualität hat. Da die gebildete Kurzfaserfraktion im Vergleich zum Ausgangsrohstoff eine erhöhte Faseranzahl und eine reduzierte mittlere Faserlänge hat, erfüllt sie in besonderer Weise die Anforderungen an eine Deckenlage. Opazität, Bedruckbarkeit und Oberflächenaussehen sind für diese Schicht besonders wichtig.A packaging paper produced by means of the method or a correspondingly produced cardboard has a cover layer whose composition of matter has the advantage of good optical quality. Since the short fiber fraction formed has an increased number of fibers and a reduced average fiber length in comparison to the starting material, it particularly fulfills the requirements for a blanket layer. Opacity, printability and surface appearance are particularly important for this layer.
Die Erfindung wird erläutert an Hand von Zeichnungen. Dabei zeigen:
- Fig. 1
- eine schematische Darstellung der wesentlichen Verfahrensschritte;
- Fig. 2
- Stück eines erfindungsgemäß produzierten zweilagigen Verpackungspapiers.
- Fig. 1
- a schematic representation of the essential process steps;
- Fig. 2
- Piece of a two-ply packaging paper produced according to the invention.
Das in einer
Die so gebildeten Fraktionen F1 und F2 werden im nachfolgenden Teil der Stoffaufbereitung 4 eventuell noch weiter bearbeitet und gelangen dann in die beiden Maschinenbütten 5 bzw. 6. Die Papiermaschine 9 erzeugt daraus den Karton oder das Verpackungspapier. Zu diesem Zweck weist sie hier einen Zweischichtstoffauflauf 10 auf, dessen horizontal getrennte Kammern über eine Stoffpumpe 7 mit der Kurzfaserfraktion F1 aus der Maschinenbütte 5 bzw. über eine Stoffpumpe 8 mit der Langfaserfraktion F2 aus der Maschinenbütte 6 versorgt werden. Am Austritt aus dem Zwischenschicht-Stoffauflauf 10 bildet sich ein die Kurzfaserfraktion F1 enthaltender oberer Stoffstrahl 11 sowie ein die Langfaserfraktion F2 enthaltender unterer Stoffstrahl 12. Aus dem oberen Stoffstrahl 11 wird die Deckenlage 13 (
Die erwähnte Aufteilung in die Kurzfaserfraktion und die Langfaserfraktion wird mit mindestens einer Fraktioniermaschine durchgeführt. Besonders geeignet ist z.B. ein Siebfraktionator mit einem Rotor gemäß der deutschen Patentanmeldung
Ein zu diesem Zweck besonders geeigneter Fraktionator ist ein Druckapparat zur Nasssiebung von der Art eines Drucksortierers. Dazu ist der
Claims (6)
dass aus der Kurzfaserfraktion (F1) die Deckenlage gebildet wird.Method of producing multilayer cardboard or packaging paper, in particular of mixed waste paper (M), comprising the following steps:
that the ceiling layer is formed from the short fiber fraction (F1).
dadurch gekennzeichnet,
dass zur Fraktionierung (3) mindestens ein Drucksortierer verwendet wird, in dem mit Hilfe eines Nasssiebes die Faserstoffsuspension (S) so fraktioniert wird, dass die Langfaserfraktion (F2) in den Überlauf und die Kurzfaserfraktion (F1) in den Durchlauf gelangt.Method according to claim 1,
characterized,
in that at least one pressure sorter is used for the fractionation (3) in which the pulp suspension (S) is fractionated with the aid of a wet sieve in such a way that the long fiber fraction (F2) enters the overflow and the short fiber fraction (F1) into the flow.
dadurch gekennzeichnet,
dass für die Fraktionierung (3) Siebe eingesetzt werden mit Schlitzen, deren Schlitzweite 0,3 bis 1 mm beträgt.Method according to claim 2,
characterized,
that for the fractionation (3) sieves are used with slots whose slot width is 0.3 to 1 mm.
dadurch gekennzeichnet,
dass aus der Langfaserfraktion (F2) die Rückseitenlage gebildet wird.Method according to claim 1, 2 or 3,
characterized,
that from the long fiber fraction (F2), the backsheet is formed.
dadurch gekennzeichnet,
dass mindestens dreilagiges Verpackungspapier oder mindestens dreilagiger Karton produziert wird, wobei aus der Langfaserfraktion (F2) die Mittellage gebildet wird und aus der Kurzfaserfraktion (F1) Decken- und Rückseitenlage.Method according to claim 1, 2 or 3,
characterized,
that at least three-ply packaging paper or at least three-ply cardboard is produced, wherein from the long fiber fraction (F2) the middle layer is formed and from the short fiber fraction (F1) top and backsheet.
dadurch gekennzeichnet,
dass mindestens dreilagiges Verpackungspapier oder mindestens dreilagiger Karton produziert wird, wobei aus der Langfaserfraktion (F2) Mittellage und Rückseitenlage gebildet werden.Method according to claim 1, 2 or 3,
characterized,
that at least three-ply packaging paper or at least three-ply cardboard is produced, wherein from the long fiber fraction (F2) center layer and backsheet are formed.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007029805A DE102007029805A1 (en) | 2007-06-27 | 2007-06-27 | Process for producing multi-ply cardboard or wrapping paper from waste paper |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2009176A2 true EP2009176A2 (en) | 2008-12-31 |
EP2009176A3 EP2009176A3 (en) | 2011-11-23 |
Family
ID=39790144
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08158083A Withdrawn EP2009176A3 (en) | 2007-06-27 | 2008-06-12 | Method for creating multilayer cardboard or packaging paper made from recycled paper |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2009176A3 (en) |
DE (1) | DE102007029805A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102493248A (en) * | 2011-12-20 | 2012-06-13 | 杭州富伦生态科技有限公司 | Method for producing regenerated kraft paper by using waste paper aluminium plastic composite packing materials |
WO2014044475A1 (en) * | 2012-09-21 | 2014-03-27 | Voith Patent Gmbh | Fractionation |
US10041209B1 (en) | 2015-08-21 | 2018-08-07 | Pulmac Systems International, Inc. | System for engineering fibers to improve paper production |
US10941520B2 (en) | 2015-08-21 | 2021-03-09 | Pulmac Systems International, Inc. | Fractionating and refining system for engineering fibers to improve paper production |
US11214925B2 (en) | 2015-08-21 | 2022-01-04 | Pulmac Systems International, Inc. | Method of preparing recycled cellulosic fibers to improve paper production |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19951711A1 (en) | 1999-10-27 | 2001-05-03 | Voith Paper Patent Gmbh | Method and device for fractionating a suspension containing paper fibers |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI92729C (en) * | 1993-10-29 | 1994-12-27 | Valmet Paper Machinery Inc | Multilayer headbox pulp feed system and method in multilayer headbox operation |
DE19526205C2 (en) * | 1995-07-18 | 2000-08-17 | Voith Sulzer Stoffaufbereitung | Process and plant for producing a multilayer paper or cardboard web |
DE19833441A1 (en) * | 1998-07-24 | 2000-01-27 | Voith Sulzer Papiertech Patent | Production of a sieve basket to sort fiber suspensions into fractions has a profiled rod wound in coils with spacers to keep them apart to form the sieve slits between them |
DE19910797A1 (en) * | 1999-03-11 | 2000-09-14 | Voith Sulzer Papiertech Patent | Sorting fibers in a suspension uses a wet sieve action with short fibers passing through the sieve for outer paper/cardboard layers and longer fibers in a fraction over the sieve for the inner layer |
FI113789B (en) * | 1999-10-20 | 2004-06-15 | Upm Kymmene Corp | Method and apparatus for making sheet paper or board |
FI118809B (en) * | 2006-09-11 | 2008-03-31 | M Real Oyj | Process for the manufacture of a fiber product |
-
2007
- 2007-06-27 DE DE102007029805A patent/DE102007029805A1/en not_active Ceased
-
2008
- 2008-06-12 EP EP08158083A patent/EP2009176A3/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19951711A1 (en) | 1999-10-27 | 2001-05-03 | Voith Paper Patent Gmbh | Method and device for fractionating a suspension containing paper fibers |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102493248A (en) * | 2011-12-20 | 2012-06-13 | 杭州富伦生态科技有限公司 | Method for producing regenerated kraft paper by using waste paper aluminium plastic composite packing materials |
WO2014044475A1 (en) * | 2012-09-21 | 2014-03-27 | Voith Patent Gmbh | Fractionation |
CN104755672A (en) * | 2012-09-21 | 2015-07-01 | 福伊特专利有限公司 | Coated steel stranded cable, and method for manufacturing same |
CN104755672B (en) * | 2012-09-21 | 2017-03-08 | 福伊特专利有限公司 | Fractional method |
US10041209B1 (en) | 2015-08-21 | 2018-08-07 | Pulmac Systems International, Inc. | System for engineering fibers to improve paper production |
US10400394B2 (en) | 2015-08-21 | 2019-09-03 | Pulmac Systems International, Inc. | Method for engineering fibers to improve paper production |
US10941520B2 (en) | 2015-08-21 | 2021-03-09 | Pulmac Systems International, Inc. | Fractionating and refining system for engineering fibers to improve paper production |
US11214925B2 (en) | 2015-08-21 | 2022-01-04 | Pulmac Systems International, Inc. | Method of preparing recycled cellulosic fibers to improve paper production |
Also Published As
Publication number | Publication date |
---|---|
DE102007029805A1 (en) | 2009-01-02 |
EP2009176A3 (en) | 2011-11-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3683357B1 (en) | Multi-layer paper containing recycled paper and grass fibres | |
DE60022212T2 (en) | METHOD FOR PRODUCING PAPER OR PAPER | |
EP2009176A2 (en) | Method for creating multilayer cardboard or packaging paper made from recycled paper | |
WO2014154297A1 (en) | Process for producing a sandwich paperboard and sandwich paperboard for a laminate | |
DE60038316T2 (en) | RAW MATERIAL FOR PRINTED PAPER, METHOD FOR ITS MANUFACTURE AND PRINTED PAPER | |
WO2009000348A1 (en) | Method of processing waste paper | |
DE102018121155A1 (en) | METHOD AND MACHINE FOR PRODUCING A MULTI-LAYER FIBROUS MATERIAL | |
EP1262596A2 (en) | Forming section and process for forming a sheet | |
DE19526205C2 (en) | Process and plant for producing a multilayer paper or cardboard web | |
DE10244521B3 (en) | Conversion of used paper into papermaking pulp, for quality graphic papers, has a fine sorting for the suspension while the rejected matter is separated into long and short fiber fractions for further cleaning and processing | |
DE69912761T2 (en) | METHOD AND DEVICE FOR PRODUCING CELLULOSE MASH WITH IMPROVED PROPERTIES | |
DE102008063785A1 (en) | Process for the treatment of waste paper-containing raw materials to form a fibrous suspension suitable for the production of graphic papers | |
EP1247892B1 (en) | Treatment of wood-containing waste paper | |
AT507115B1 (en) | METHOD AND SYSTEM FOR OPTIMIZING PROPERTIES OF A FIBERWORK | |
EP1108813B1 (en) | Process for separating a suspension of papermaking fibres | |
DE102008010447A1 (en) | Fibrous material suspension treating and utilizing method for manufacturing paper, involves forming fine fraction and coarse fraction by fractioning function, where coarse fraction is predominantly used for layer of paper | |
DE10132743A1 (en) | Recovery of at least two different paper fractions, from pulped used paper for recycling, the fraction which is less well pulped is separated for further intensive pulping into the second fraction | |
DE19703466A1 (en) | Multi-layer paper | |
DE112004001766T5 (en) | Process for producing a layered paper or board web | |
EP0479141B1 (en) | Method of preparing fibre material and the use of this method | |
DE202019100702U1 (en) | Multi-ply paper containing waste paper and grass fibers | |
DE10141513A1 (en) | Paper or carton web side margins, modified during production by use of greater strength fibres | |
EP3749801A1 (en) | Method and device for producing a multilayer fibrous web | |
WO1998001622A1 (en) | Process for improving printing paper | |
DE102011005540A1 (en) | Method for manufacturing fibrous web, particularly paper-, packaging paper- or cardboard web in paper- or board machine, involves merging layers in headbox and positions in sheet-forming unit to fibrous web |
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 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA MK RS |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA MK RS |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: D21D 99/00 20060101ALI20111020BHEP Ipc: D21F 11/00 20060101ALI20111020BHEP Ipc: D21D 5/02 20060101ALI20111020BHEP Ipc: D21D 5/00 20060101AFI20111020BHEP |
|
AKY | No designation fees paid | ||
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R108 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R108 Effective date: 20120801 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20120524 |