AT112850B - Basic work for paper material Dutch or the like. - Google Patents

Basic work for paper material Dutch or the like.

Info

Publication number
AT112850B
AT112850B AT112850DA AT112850B AT 112850 B AT112850 B AT 112850B AT 112850D A AT112850D A AT 112850DA AT 112850 B AT112850 B AT 112850B
Authority
AT
Austria
Prior art keywords
dutch
basic work
paper material
grinding
base structure
Prior art date
Application number
Other languages
German (de)
Original Assignee
Karl Rieth
Zellstoff Und Papierfabrikatio
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Karl Rieth, Zellstoff Und Papierfabrikatio filed Critical Karl Rieth
Application granted granted Critical
Publication of AT112850B publication Critical patent/AT112850B/en

Links

Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21DTREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D1/00Methods of beating or refining; Beaters of the Hollander type
    • D21D1/02Methods of beating; Beaters of the Hollander type

Description

  

   <Desc/Clms Page number 1> 
 



  Grundwerk für'Papierstoffholländer od. dgl. 



   Die Erfindung richtet sich auf ein Grundwerk für Papierstoffholländer. Gewöhnlich verwendet man Messergrundwerke, wobei die Fasern in erheblichem Masse zerrissen werden. Es ist auch bereits bekannt,   Steinmahlzeuge   zu benutzen, wodurch man schon bei geringerem Mahlgrad ein vollkommeneres Schmierigmahlen des Stoffes erreicht. Dies geschieht jedoch auf Kosten der Faserbeschaffenheit, insbesondere der Faserlänge, so dass die Festigkeit beeinträchtigt wird. Diese Eigenschaft des Steinmahlzeugs findet ihren Grund in seiner porösen Beschaffenheit. 



   Die Erfindung beseitigt diesen Nachteil und kennzeichnet sich wesentlich dadurch, dass die dem Mahlorgan angepasste Fläche des Grundwerks glatt. st. Der Vorteil dieser Ausbildung ist der, dass die Fasern weniger zerrissen als vielmehr zerquetscht werden, so dass man eine vollkommene   Schmierig-   mahlung des Papierstoffes bei geringem Zeitaufwand erzielt. Die Faser wird hauptsächlich der Länge   naxh   aufgerauht, was bei Papieren, die gute Festigkeitseigenschaften zeigen sollen, von Bedeutung ist, indem eine hohe Festigkeit bereits bei geringem Mahlgrad erreicht wird. 



   Ferner ist dieses Grundwerk für die Erzeugung von fettdichten, von   Pergamyn-und   Pergamentersatzpapieren in hervorragendem Masse geeignet.   Die Fettdichtigkeit,   wird schon bei niederen Mahlgraden erhalten, z. B. bereits bei   350 nach Sehopper-Riegler,   gegenüber   60-80  bei   den bisher üblichen reinen Messergrundwerken, und dies bei hoher Festigkeit. Es ergeben sich erhebliche Vorteile nicht nur durch geringeren Energieverbrauch, sondern auch im Hinblick auf günstigere Fabrikationsmöglichkeiten. 



  Denn es ist klar, dass sich fettdichte Papiere von so geringem Mahlgrad mit andern Geschwindigkeiten arbeiten lassen als bei den bisher für diese Papiere üblichen Mahlgraden. 



   Auf der Zeichnung ist der Erfindungsgegenstand in   Aisführungsbeispielen'veranschaulicht   ; es zeigen Fig. 1 einen Schnitt durch einen Walzenholländer, die Fig. 2 einen Längs-und einen Querschnitt durch eine   Eegelstoffmühle   und Fig. 3 einen Schnitt durch einen   Planscheibenholländer.   



   In allen drei Fällen ist a die glatte Fläche des Grundwerks gemäss der Erfindung, an der die Messer b des Mahlorgans vorbeistreichen. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Basic work for'Papierstoffholländer or the like.



   The invention is directed to a basic work for paper pulp Dutch. Knife bases are usually used and the fibers are severely torn. It is also already known to use stone grinding tools, whereby a more complete greasy grinding of the substance is achieved even with a lower degree of grinding. However, this is done at the expense of the nature of the fiber, in particular the fiber length, so that the strength is impaired. This property of stone grinding tools is due to its porous nature.



   The invention eliminates this disadvantage and is essentially characterized in that the surface of the base that is adapted to the grinding element is smooth. st. The advantage of this design is that the fibers are not so much torn as they are crushed, so that the paper stock can be completely greasy milled in a short time. The fiber is mainly roughened to the length naxh, which is important for papers that are supposed to show good strength properties, since high strength is achieved even with a low degree of freeness.



   Furthermore, this basic work is outstandingly suitable for the production of greaseproof, parchment and parchment replacement papers. The grease tightness is obtained even at low grinds, e.g. B. already at 350 according to Sehopper-Riegler, compared to 60-80 with the previously usual pure knife base works, and this with high strength. There are considerable advantages not only due to lower energy consumption, but also with regard to cheaper manufacturing options.



  Because it is clear that greaseproof papers with such a low degree of grind can be operated at different speeds than with the degrees of grind customary for these papers up to now.



   In the drawing, the subject matter of the invention is illustrated in exemplary embodiments; 1 shows a section through a roller dutchman, FIG. 2 shows a longitudinal and a cross section through a gel pulp mill, and FIG. 3 shows a section through a flat disc dutchman.



   In all three cases, a is the smooth surface of the base according to the invention, on which the knife b of the grinding organ sweeps past.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

PATENT-ANSPRUCH : Grundwerk für Papierstoffho'Iänder od. dgl., dadurch gekennzeichnet, dass das dem Mahlorgan angepasste Grundwerk eine einheitliche glatte, aus Eisen, Stahl, Metall oder andern widerstandsfähigen Werkstoffen bestehende Fläche bildet. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Base structure for paper pulp countries or the like, characterized in that the base structure adapted to the grinding element forms a uniform, smooth surface consisting of iron, steel, metal or other resistant materials. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT112850D 1928-01-31 1928-03-10 Basic work for paper material Dutch or the like. AT112850B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB73568D DE493573C (en) 1928-01-31 1928-01-31 Basic work with a smooth work surface for paper towel holders or the like.

Publications (1)

Publication Number Publication Date
AT112850B true AT112850B (en) 1929-04-10

Family

ID=6977903

Family Applications (1)

Application Number Title Priority Date Filing Date
AT112850D AT112850B (en) 1928-01-31 1928-03-10 Basic work for paper material Dutch or the like.

Country Status (2)

Country Link
AT (1) AT112850B (en)
DE (1) DE493573C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2616802A (en) * 1949-07-26 1952-11-04 Pandia Inc Fiberizing lignocellulose steamed under pressure and apparatus
DE926711C (en) * 1952-09-30 1955-04-21 Cowles Company Device for defibrating paper stock

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2616802A (en) * 1949-07-26 1952-11-04 Pandia Inc Fiberizing lignocellulose steamed under pressure and apparatus
DE926711C (en) * 1952-09-30 1955-04-21 Cowles Company Device for defibrating paper stock

Also Published As

Publication number Publication date
DE493573C (en) 1930-03-10

Similar Documents

Publication Publication Date Title
DE665659C (en) Stock and butt for handguns
AT112850B (en) Basic work for paper material Dutch or the like.
DE2149250C3 (en) Abrasion-resistant top layer
DE547964C (en) Manufacture of cold impact or pressure tools
DE415675C (en) Method for gluing paper stock
DE688722C (en) Roof and insulation covering
AT117738B (en) Plaster mortar carrier.
DE601593C (en) Process for the production of building panels from pulp
DE504705C (en) Process for the production and processing of wood pulp and other fiber products
DE416282C (en) Calender roll made of steel, especially for smoothing paper
DE810449C (en) Impact-resistant journal bearing
AT207575B (en) Phosphor bronze alloy containing manganese
DE940188C (en) Use of gold-platinum alloys for the production of spinnerets
AT102455B (en) Method for gluing paper.
DE641536C (en) Method of making single-sided printing paper
AT114454B (en) Process for the production of insulating paper.
AT72878B (en) Straight guide for gate frame.
AT122461B (en) Nitrided steel objects that require great resistance to the stresses arising from high pressure or impact.
AT152464B (en) Roller, in particular for paper machines.
DE572386C (en) Eyeglass earpieces with gold double thread wrapping
AT159028B (en) Method and flat card for producing a sliver, in particular from rayon.
AT109998B (en) Snowshoe.
AT89606B (en) Grinding, grinding and refining stone.
AT158332B (en) Plywood block.
DE2752358B1 (en) High-strength liner paper for the manufacture of corrugated cardboard