DE255661C - - Google Patents
Info
- Publication number
- DE255661C DE255661C DENDAT255661D DE255661DA DE255661C DE 255661 C DE255661 C DE 255661C DE NDAT255661 D DENDAT255661 D DE NDAT255661D DE 255661D A DE255661D A DE 255661DA DE 255661 C DE255661 C DE 255661C
- Authority
- DE
- Germany
- Prior art keywords
- paper
- roller
- paper web
- produced
- machine
- 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.)
- Active
Links
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000004744 fabric Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- 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
Landscapes
- Paper (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Duplexpapiere wurden bisher in der Weise erzeugt, daß man auf einem zweiten Langsieb oder Rundsieb eine Papierbahn erzeugte und diese mit der Hauptpapierbahn der Langsieb-5 oder Rundsiebmaschine zusammengautschte. Die Einrichtungen zur Herstellung solcher Duplexpapiere waren sehr kostspielig, konnten auch oftmals infolge Platzmangels und ungeeigneter Bauart der betreffenden Papiermaschine überhaupt nicht eingebaut werden.Duplex papers have been produced in such a way that one on a second Fourdrinier or cylinder mold produced a paper web and this with the main paper web of the Fourdrinier-5 or cylinder sieve machine. The facilities for making such Duplex papers were very expensive, often due to a lack of space and unsuitable Design of the paper machine in question are not installed at all.
Es wurde gefunden, daß Duplexpapiere^sich auch in der Weise erzeugen lassen, daß man in die erste Naßpresse der Papiermaschine anstatt des Filzes ein Sieb α einzieht und durch Aufbringung von Papierstoff durch einen Stoffzuflußkasten b auf diesem eine zweite Papierbahn erzeugt, welche durch die Preßwalzen c und d mit der Hauptpapierbahn i zusammengegautscht wird. Vor dem Eintritt des Siebes α in die Preßwalzen c und d wird eine Walze e angeordnet, die so hoch zu liegen kommt, daß durch frühzeitiges Andrücken des Siebes α an die Walze d eine gute Vorgautsche und Vorentwässerung bewirkt wird.It has been found that duplex papers ^ can also be produced in such a way that instead of the felt, a wire α is drawn into the first wet press of the paper machine and, by applying paper stock through a stock supply box b , a second paper web is created on this, which is produced by the press rolls c and d is squeezed together with the main paper web i. Before the screen α enters the press rollers c and d , a roller e is arranged, which comes to lie so high that pressing the screen α against the roller d at an early stage brings about a good pre-gauze and pre-drainage.
Damit beim Zusammenpressen der beiden Papierbahnen diese nicht verdrückt oder gar zerrissen werden, ist es zweckmäßig, die obere Preßwalze d mit einer Filz- oder Gewebebombage zu umkleiden, oder aber noch besser, um diese einen endlosen Filz f gehen zu lassen. Die Zuleitung des Papierstoffes zu dem Stoffauflaufkasten b erfolgt durch eine zweite Bütte; auch ist es ratsam, zum Schütze der zumeist mit Gummi überzogenen Preßwalze c diese auch mit einem mehrmals um dieselbe geschlungenen Gewebe zu umkleiden. Das unter dem Sieb α abgehende Wasser wird durch einen Kasten g aufgefangen. Das Sieb a wird durch ein Spritzrohr h von etwa hängenbleibendem Papierstoff befreit.So that when the two paper webs are pressed together they are not crushed or even torn, it is advisable to cover the upper press roll d with a felt or fabric bombage, or even better, to let this go with an endless felt f. The paper stock is fed to the headbox b through a second vat; It is also advisable, in order to protect the press roller c, which is mostly covered with rubber, to cover it with a fabric that is looped around the same several times. The water leaving under the sieve α is collected in a box g. The sieve a is freed of any paper stock that has got stuck through a spray tube h.
Claims (3)
Publications (1)
Publication Number | Publication Date |
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DE255661C true DE255661C (en) |
Family
ID=513743
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT255661D Active DE255661C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE255661C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE937928C (en) * | 1936-11-27 | 1956-01-19 | Siemens Ag | Process for the production of paper intended for the insulation of electrical cables, in particular telecommunications cables |
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0
- DE DENDAT255661D patent/DE255661C/de active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE937928C (en) * | 1936-11-27 | 1956-01-19 | Siemens Ag | Process for the production of paper intended for the insulation of electrical cables, in particular telecommunications cables |
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