DE332186C - Process for the production of pulp from wood - Google Patents
Process for the production of pulp from woodInfo
- Publication number
- DE332186C DE332186C DE1917332186D DE332186DD DE332186C DE 332186 C DE332186 C DE 332186C DE 1917332186 D DE1917332186 D DE 1917332186D DE 332186D D DE332186D D DE 332186DD DE 332186 C DE332186 C DE 332186C
- Authority
- DE
- Germany
- Prior art keywords
- wood
- pulp
- rollers
- subjected
- production
- 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
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/02—Pretreatment of the raw materials by chemical or physical means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
Description
Verfahren zur Herstellung von Zellstoff aus ,Holz. Es ist bekannt, Zellstoff aus Holz in der Weise herzustellen, daß man das Holz erst in Platten zerlegt und dann diese Holzplatten zwischen geriffelten Walzenpaaren quetscht und dann auf Zellstoff verarbeitet. Bei diesem bekannten Verfahren wird das Holz quer zum Verlauf der Fasern durch die .Walzen gepreßt; die erhaltenen Fasern sind kürz und daher minderwertig.Process for the production of pulp from, wood. It is known, To produce pulp from wood in such a way that the wood is first cut into panels and then squeezing these wooden panels between corrugated pairs of rollers and then opening them Pulp processed. In this known method, the wood is transverse to the course the fibers pressed through the rollers; the fibers obtained are short and therefore inferior.
Das neue Verfahren beruht darauf, daß die Holzplatten mit ihrer Faserrichtung parallel zii den Drehachsen der geriffelten Walzen zwischen diese eingeführt und gequetscht werden, wobei die zusammen arbeitenden Walzen eines jeden Walzenpaares verschiedene Umdrehungsgeschwindigkeiten besitzen. Vorteilhaft wird das Holz vor dein Quetschen genäßt und dein Gefrieren ausgesetzt. Man erreicht hierdurch, daß die Zellen und Fasern in ihrer ganzen Länge allmählich gleichmäßig auseinandergequetscht und voneinander getrennt werden. Wenn man das Holz vor dem Quetschen in Wasser einweicht und ts alsdann gefrieren läßt, so erreicht man, d'aß das Zellen-und Faserngewebe an und für sich schon in seinem Zusammenhang gelockert wird. Unterwirft man das so vorbehandelte Holz dann noch einem Quetschen, so bedingt das in und zwischen dem- Zehengewebe eingelagerte Eis neuerdings eine Sprengung und Lockerung des Gewebes. Das so erhaltene Rohgut wird in bekannter Weise weiterbehandelt: Man erhält auf diese Weise einen Stoff, der eine verhältnismäßig große Menge an unverletzten langen Fasern enthält. Da das Ausgangsgut keinem Dämpfen unter Druck unterworfen werden muß, erhält man einen Rohstoff von der Farbe des Ausgangsgutes, der auch sämtliche Harz-, Schleim- und Pektinstofe sowie Interzellularsubstanz enthält. Infolgedessen benötigt ein derartiges Gut bei seiner Verarbeitung auf Papier nur einen geringen Leimzusatz. Es wird so ermöglicht, das gesamte Ausgangsgut ohne nennenswerte Verluste zu Faserstoff zu verarbeiten.The new process is based on the fact that the wood panels with their grain direction parallel zii the axes of rotation of the corrugated rollers inserted between them and are squeezed, the co-operating rollers of each roller pair have different speeds of rotation. The wood is advantageous before your bruising wet and your freezing exposed. This achieves that the cells and fibers gradually squeezed evenly apart along their entire length and separated from each other. If you soak the wood in water before squeezing it and then let it freeze, so you get the tissue of cells and fibers in and of itself is already loosened in its context. If you submit to that Wood that has been pretreated in this way then still has to be squeezed, this is what determines the in and between Ice has recently been deposited in the toe tissue, causing the tissue to break up and loosen up. The raw material obtained in this way is further treated in a known manner: one obtains on this way a substance that has a relatively large amount of uninjured long Contains fibers. Since the starting material is not subjected to steaming under pressure If you have to, you get a raw material of the same color as the original, and all of it Contains resin, mucilage and pectin substances as well as intercellular substance. Consequently such a good requires only a small amount when it is processed on paper Glue addition. This enables the entire output material without any significant losses to be processed into pulp.
Der auf diese Weise gewonnene Stoff soll in der Papier- und.Web- oder Wirkwarenherstellung zur Herstellung von Lederersatz. ILunstholz, Isolierstoffen, bildsamen Massen usw. verwendet werden.The material obtained in this way should be used in the paper and web or Manufacture of hosiery for the manufacture of leather substitutes. Synthetic wood, insulating materials, sculptural masses, etc. are used.
Es lassen sich nach dem neuen Verfahren auch andere pflanzliche Rohstoffe auf Zellstoff verarbeiten.The new process can also be used to produce other vegetable raw materials process on pulp.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE332186T | 1917-12-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE332186C true DE332186C (en) | 1921-01-25 |
Family
ID=6201716
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1917332186D Expired DE332186C (en) | 1917-12-22 | 1917-12-22 | Process for the production of pulp from wood |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE332186C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996012061A1 (en) * | 1994-10-17 | 1996-04-25 | Beloit Technologies, Inc. | Wood chip strand splitter |
WO1996038623A1 (en) * | 1995-06-01 | 1996-12-05 | Acrowood Corporation | Machine for destructuring wood chips |
-
1917
- 1917-12-22 DE DE1917332186D patent/DE332186C/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996012061A1 (en) * | 1994-10-17 | 1996-04-25 | Beloit Technologies, Inc. | Wood chip strand splitter |
WO1996038623A1 (en) * | 1995-06-01 | 1996-12-05 | Acrowood Corporation | Machine for destructuring wood chips |
US5597128A (en) * | 1995-06-01 | 1997-01-28 | Acrowood Corporation | Machine for destructuring wood chips |
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