GB362557A - A process of and apparatus for, washing webs of paper - Google Patents
A process of and apparatus for, washing webs of paperInfo
- Publication number
- GB362557A GB362557A GB28610/30A GB2861030A GB362557A GB 362557 A GB362557 A GB 362557A GB 28610/30 A GB28610/30 A GB 28610/30A GB 2861030 A GB2861030 A GB 2861030A GB 362557 A GB362557 A GB 362557A
- Authority
- GB
- United Kingdom
- Prior art keywords
- web
- bands
- baths
- over
- washing
- 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
- 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
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/06—Vegetable or imitation parchment; Glassine paper
-
- 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
- D21H5/08—Vegetable parchment
Landscapes
- Paper (AREA)
Abstract
<PICT:0362557/IV/1> <PICT:0362557/IV/2> The washing of paper web is accompanied by friction applied over the whole width of the web and with a reciprocating movement. The friction is applied by means of a travelling band, or by means of two travelling bands between which the web passes, using apparatus in which the conveyer passes over guide rollers into and out of a bath or series of baths. In the operation of the apparatus illustrated in the drawings, a web of paper 1 saturated with sulphuric acid of high concentration passes over the driven roller 15 between two bands 19, 23, which are made of woven asbestos, a phosphor-bronze grid, or other material resistant to sulphuric acid. The web travels between these bands through all the baths 2 .. 6, taking a zig-zag course over and under the rotating rolls 13. In their passage by these rolls, the bands travel through arcs of different radii, and each band in turn has to travel through a greater distance than the other, so that the web is subjected to a pronounced rubbing treatment, and is thoroughly washed. The same rubbing effect is produced by the change of direction of the bands as they pass over the driven rollers 14 outside the baths. The endless bands travel back to the bath 2 over the driven rollers 16, 17, 18 and 22, 21, 20, being freed from fibrous material by jets 24, but one band may continue with the web until it reaches the drying device. The fresh washing water is fed through a conduit 7, and flows through overflow conduits 9, 10, 11, 12, and 8. Thus washing liquids of different concentrations are used in the baths, so that the amount of water required for washing is kept as low as possible.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE362557X | 1930-01-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB362557A true GB362557A (en) | 1931-12-10 |
Family
ID=6306184
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB28610/30A Expired GB362557A (en) | 1930-01-21 | 1930-09-24 | A process of and apparatus for, washing webs of paper |
Country Status (3)
Country | Link |
---|---|
FR (1) | FR702339A (en) |
GB (1) | GB362557A (en) |
NL (1) | NL29508C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3083481A (en) * | 1961-06-05 | 1963-04-02 | Kamen Emanuel Gerald | Automatic towel machine |
US3100306A (en) * | 1958-05-28 | 1963-08-13 | Dow Chemical Co | Liquid application to running lengths of fibers in superimposed baths |
-
0
- NL NL29508D patent/NL29508C/xx active
-
1930
- 1930-09-18 FR FR702339D patent/FR702339A/en not_active Expired
- 1930-09-24 GB GB28610/30A patent/GB362557A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3100306A (en) * | 1958-05-28 | 1963-08-13 | Dow Chemical Co | Liquid application to running lengths of fibers in superimposed baths |
US3083481A (en) * | 1961-06-05 | 1963-04-02 | Kamen Emanuel Gerald | Automatic towel machine |
Also Published As
Publication number | Publication date |
---|---|
NL29508C (en) | |
FR702339A (en) | 1931-04-04 |
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