DE1269469B - Process for producing fibrous webs - Google Patents
Process for producing fibrous websInfo
- Publication number
- DE1269469B DE1269469B DEP1269A DE1269469A DE1269469B DE 1269469 B DE1269469 B DE 1269469B DE P1269 A DEP1269 A DE P1269A DE 1269469 A DE1269469 A DE 1269469A DE 1269469 B DE1269469 B DE 1269469B
- Authority
- DE
- Germany
- Prior art keywords
- threads
- endless
- fibrous webs
- fibers
- producing fibrous
- 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
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
- D21H5/00—Special paper or cardboard not otherwise provided for
- D21H5/12—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials
- D21H5/1245—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials of long or continuous filaments
-
- 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
- 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
- D21F11/02—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the Fourdrinier type
- D21F11/04—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the Fourdrinier type paper or board consisting on two or more layers
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F9/00—Complete machines for making continuous webs of paper
- D21F9/02—Complete machines for making continuous webs of paper of the Fourdrinier type
-
- 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
- D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
- D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
- D21H15/06—Long fibres, i.e. fibres exceeding the upper length limit of conventional paper-making fibres; Filaments
Landscapes
- Paper (AREA)
Description
BUNDESREPUBLIK DEUTSCHLAND DEUTSCHES ÄÄ PATENTAMTFEDERAL REPUBLIC OF GERMANY GERMAN PATENT OFFICE
AUSLEGESCHRIFTEDITORIAL
Int. Cl.:Int. Cl .:
Nummer:
Aktenzeichen:
Anmeldetag:
Auslegetag:Number:
File number:
Registration date:
Display day:
OlliOlli
Deutsche Kl.: 55d-22German class: 55d-22
1269469
P 12 69 469.8-27
6. Juni 1964
30. Mai 19681269469
P 12 69 469.8-27
June 6, 1964
May 30, 1968
Die Erfindung betrifft ein Verfahren zum Herstellen von Faserstoffbahnen auf dem Sieb einer Papiermaschine durch zuführen endloser Fäden vor der Blattbildungszone. Sie stellt eine Verbesserung bzw. weitere Ausbildung der Erfindung nach Patentanmeldung F 41606 VII b/55 d (deutsche Auslegeschrift 1 254 450) dar, wonach zum Herstellen von Faservliesen in einer Papiermaschine Fasern in einem Flüssigkeitsstrom dem Papiermaschinensieb zugeführt, dort entwässert und anschließend getrocknet werden, wobei erfindungsgemäß dem Flüssigkeitsstrom endlose Fasern zugeführt werden, deren Geschwindigkeit größer ist als die Geschwindigkeit des Siebes. Durch dieses Verfahren wurde es möglich, endlose Fasern nach der Papiermachertechnik zu verarbeiten und damit die Festigkeit solcher Fasern nutzbar zu machen. Da bei diesem Verfahren die Geschwindigkeit, mit der die endlosen Fasern zugeführt werden, größer ist als die Geschwindigkeit des Siebes, erfahren die endlosen Fasern eine Abbremsung, die zu einer Wirrlage auf dem Sieb führt. Durch die Verwendung von endlosen Fasern und der Ablage dieser endlosen Fasern in Schleifen und Wirrlage auf dem Sieb der Papiermaschine wird eine Faserstoffbahn erzielt, die in allen Richtungen gute Festigkeitseigenschaften aufweist. Je nach der Geschwindigkeitsdifferenz zwischen Sieb bzw. Stoffwasser und den zugeführten Fasern sind aber trotz allem häufig noch Unterschiede in den Festigkeitswerten in den einzelnen Richtungen vorhanden. The invention relates to a method for producing fibrous webs on the wire of a paper machine by feeding endless threads in front of the sheet formation zone. It represents an improvement or further development of the invention according to patent application F 41606 VII b / 55 d (German Auslegeschrift 1 254 450), according to which, for the production of nonwovens in a paper machine, fibers in one Liquid flow fed to the paper machine screen, dewatered there and then dried are, according to the invention, continuous fibers are fed to the liquid stream, their speed is greater than the speed of the sieve. This process made it possible to process endless fibers according to the papermaking technique and thus the strength of such fibers to make usable. Because in this process the speed with which the endless fibers are fed is greater than the speed of the screen, the endless fibers experience a slowdown, which leads to a tangled position on the sieve. By using endless fibers and the Depositing these endless fibers in loops and random layers on the wire of the paper machine becomes one Achieved fibrous web that has good strength properties in all directions. Depending on the speed difference In spite of everything, there are often still differences in the strength values in the individual directions between the sieve or stock water and the fibers fed in.
Es wurde nun gefunden, daß sich die Reißfestigkeit dieser Faserstoffbahnen weiter wesentlich verbessern und dem jeweiligen Anwendungszweck besser anpassen läßt, wenn bei einem Verfahren nach der Hauptpatentanmeldung die endlosen Fäden in mehreren Ebenen zugeführt werden, wobei die Fäden voneinander verschiedene Geschwindigkeit besitzen.It has now been found that the tear resistance of these fibrous webs can be further improved significantly and can be better adapted to the respective application purpose if after a process the main patent application the endless threads are fed in several levels, with the Threads have different speeds from each other.
Das erfindungsgemäße Verfahren erlaubt es, das fertige Erzeugnis in seinen Eigenschaften, vor allem hinsichtlich seiner Reißfestigkeit weitgehend den jeweiligen Erfordernissen anzupassen und die Längsund Querreißfestigkeit willkürlich zu beeinflussen.The inventive method allows the finished product in its properties, above all largely adapt to the respective requirements in terms of its tear resistance and the longitudinal and To arbitrarily influence transverse tensile strength.
Da die Zuführgeschwindigkeit der endlosen Fäden in den einzelnen Ebenen voneinander verschieden ist, ergibt sich in den einzelnen Ebenen eine verschieden starke Abbremsung und damit eine verschieden starke Aufhebung der Ausrichtung der Fäden in der Laufrichtung des Siebes.Because the feed speed of the endless threads in the individual levels is different from each other is, there is a different degree of deceleration in the individual levels and thus different strong cancellation of the alignment of the threads in the running direction of the wire.
Zweckmäßig werden hierbei die Zuführorgane für die endlosen Fäden quer zur Maschinenlaufrichtung
hin- und herbewegt. Durch diese Hin- und Her-Verfahren zum Herstellen
von FaserstoffbahnenThe feed members for the endless threads are expediently moved back and forth transversely to the machine direction. Through this back and forth method of manufacture
of fibrous webs
Zusatz zur Anmeldung: F 41606 VII b/55 d Auslegeschrift: 1254 450Addition to registration: F 41606 VII b / 55 d Auslegeschrift: 1254 450
Anmelder:Applicant:
Feldmühle Aktiengesellschaft,Feldmühle Aktiengesellschaft,
4000 Düsseldorf, Fritz-Vomfelde-Platz 44000 Düsseldorf, Fritz-Vomfelde-Platz 4
Als Erfinder benannt:Named as inventor:
Dr. phil. ehem. Fritz Opderbeck,Dr. phil. formerly Fritz Opderbeck,
4005 Büderich;4005 Büderich;
Dr. Theodor Ploetz, 4033 Hösel;Dr. Theodor Ploetz, 4033 Hösel;
Dipl.-Ing. Dieter Berger, 5420 Oberlahnstein;Dipl.-Ing. Dieter Berger, 5420 Oberlahnstein;
Ludwig Wilken, 4060 ViersenLudwig Wilken, 4060 Viersen
bewegung der Zuführorgane der endlosen Fäden wird derjenige Anteil der endlosen Fäden, der im wesentlichen quer zur Siebrichtung abgelagert wird, noch vergrößert. Selbstverständlich können auch beide genannten Maßnahmen zusammen angewendet werden.Movement of the feed organs of the endless threads is that portion of the endless threads, which in the is deposited essentially transversely to the sieve direction, still enlarged. Of course you can too both measures mentioned are applied together.
Aus der französischen Patentschrift 1 332 813 ist es bekannt, Fasern endlicher Länge einem Stoffauflauf zuzuführen, wobei dieser durch Leitbleche in verschiedenen Ebenen unterteilt ist. Durch diese Leitbleche wird die zugeführte Faserstoffsuspension mit Kurzfasern in mehrere übereinander angeordnete Zuführebenen unterteilt. Die Zuführgeschwindigkeit der in einzelnen Ebenen unterteilten, gleichen Faserstoffsuspension mit Kurzfasern ist dabei über den Gesamtströmungsquerschnitt in den einzelnen Ebenen gleich groß und liegt etwa 2- bis 5mal so hoch wie die Siebgeschwindigkeit. Dieses bekannte Verfahren ist nicht zur Herstellung von Faserstoffbahnen aus Endlosfäden geeignet, da die einzelnen Schichten der Faserstoffsuspension mit gleicher Geschwindigkeit zugeführt werden und sich diese Art der Zuführung auf die Herstellung von Faservliesen aus Endlosfäden nicht anwenden läßt, wenn man eine hohe Reißfestigkeit erreichen will.From French Patent 1,332,813 it is known to place fibers of finite length in a headbox feed, which is divided into different levels by baffles. Through this Guide plates, the supplied pulp suspension with short fibers is divided into several one above the other Subdivided feed levels. The feed speed of the same pulp suspension divided into individual levels with short fibers is about the total flow cross-section in the individual levels the same size and about 2 to 5 times as high as the sieving speed. This known method is not suitable for the production of fibrous webs from continuous filaments, as the individual layers of the Pulp suspension are fed at the same speed and this type of feed cannot be applied to the production of nonwovens from continuous filaments if one has a high tensile strength want to achieve.
809 557/259809 557/259
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP1269A DE1269469B (en) | 1963-12-20 | 1964-06-06 | Process for producing fibrous webs |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEF41606A DE1254450B (en) | 1963-12-20 | 1963-12-20 | Process for producing nonwovens |
DEF0043112 | 1964-06-06 | ||
DEP1269A DE1269469B (en) | 1963-12-20 | 1964-06-06 | Process for producing fibrous webs |
DEF0044573 | 1964-12-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1269469B true DE1269469B (en) | 1968-05-30 |
Family
ID=27430486
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEP1269A Pending DE1269469B (en) | 1963-12-20 | 1964-06-06 | Process for producing fibrous webs |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1269469B (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1332813A (en) * | 1962-07-11 | 1963-07-19 | Feldmuehle Ag | Method and device for the continuous production of fibrous webs on a paper machine |
-
1964
- 1964-06-06 DE DEP1269A patent/DE1269469B/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1332813A (en) * | 1962-07-11 | 1963-07-19 | Feldmuehle Ag | Method and device for the continuous production of fibrous webs on a paper machine |
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