GB1219802A - Improvements in and relating to sheet material - Google Patents
Improvements in and relating to sheet materialInfo
- Publication number
- GB1219802A GB1219802A GB88968A GB88968A GB1219802A GB 1219802 A GB1219802 A GB 1219802A GB 88968 A GB88968 A GB 88968A GB 88968 A GB88968 A GB 88968A GB 1219802 A GB1219802 A GB 1219802A
- Authority
- GB
- United Kingdom
- Prior art keywords
- slurry
- web
- starch
- jan
- deposited
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/28—Starch
-
- 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
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/50—Spraying or projecting
Landscapes
- Paper (AREA)
Abstract
1,219,802. Papermaking; electrostatic deposition. RANSBURG ELECTRO-COATING CORP. 5 Jan., 1968 [5 Jan., 1967], No. 889/68. Headings D1L, D2A and D2B. Fibrous cellulosic sheet material, e.g. paperboard or newsprint, as a wet web is sized by electrostatically charging atomized droplets of a slurry of ungelatinized granular starch, to deposit the particles on the wet web, dewatering and heating to assist gelatinization. The starch may be modified to reduce its gelatinization temperature, e.g. by surface hydroxyethylation. The liquid of the slurry is preferably water, but this may be replaced wholly or in part by glycols or polyglycols; glycerine and pentaerythritol can be added. The slurry may also contain surfactants, pigments, fillers, latices of styrene-butadiene copoloymers or emulsions of polyvinyl chloride. As shown, the slurry is circulated through conduits 22 to spray guns 23 above a web P of paper between the first and second wet presses of a paper machine. A valve in each spray gun is controlled through a control tube 24. The slurry is forced out of the guns by the pressure in the conduit, atomized and electrostatically charged by an electrode (33, Fig. 2 not shown). The web is effectively earthed and so the slurry is deposited at 25. Alternatively, it may be deposited on the wire side at 26, between the press and drier sections, between first and second drier sections or even before the couch, or both sides may be treated. The invention may also be used with cylinder or other machines. Very small amounts of starch can be applied uniformly by this technique.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US60748167A | 1967-01-05 | 1967-01-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1219802A true GB1219802A (en) | 1971-01-20 |
Family
ID=24432474
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB88968A Expired GB1219802A (en) | 1967-01-05 | 1968-01-05 | Improvements in and relating to sheet material |
Country Status (6)
Country | Link |
---|---|
CH (1) | CH479771A (en) |
DE (1) | DE1611787B2 (en) |
FI (1) | FI51380C (en) |
FR (1) | FR1550034A (en) |
GB (1) | GB1219802A (en) |
SE (1) | SE348507B (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6494954B1 (en) | 1997-05-27 | 2002-12-17 | Voith Sulzer Papiermaschinen Gmbh | Method and apparatus for directly or indirectly applying a liquid or pasty application medium to one or both sides of a continuous surface |
WO2006013173A2 (en) * | 2004-08-03 | 2006-02-09 | Voith Patent Gmbh | Method for applying a liquid or pasty application medium to a continuous paper or cardboard web, and paper or cardboard machine for carrying out said method |
WO2006037774A1 (en) * | 2004-10-05 | 2006-04-13 | Voith Patent Gmbh | Method for producing a fibrous material web |
WO2008023093A1 (en) | 2006-08-24 | 2008-02-28 | Stora Enso Oyj | Method for coating a paper surface and a product thus obtained |
CN106400593A (en) * | 2016-06-24 | 2017-02-15 | 广西金桂浆纸业有限公司 | A starch spraying device used for a laboratory |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102023106574A1 (en) | 2023-03-16 | 2024-09-19 | Voith Patent Gmbh | Application nozzle, former and use |
-
1968
- 1968-01-05 SE SE16468A patent/SE348507B/xx unknown
- 1968-01-05 GB GB88968A patent/GB1219802A/en not_active Expired
- 1968-01-05 FR FR1550034D patent/FR1550034A/fr not_active Expired
- 1968-01-05 DE DE1968R0047728 patent/DE1611787B2/en not_active Withdrawn
- 1968-01-05 FI FI2968A patent/FI51380C/en active
- 1968-01-05 CH CH14468A patent/CH479771A/en not_active IP Right Cessation
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6494954B1 (en) | 1997-05-27 | 2002-12-17 | Voith Sulzer Papiermaschinen Gmbh | Method and apparatus for directly or indirectly applying a liquid or pasty application medium to one or both sides of a continuous surface |
WO2006013173A2 (en) * | 2004-08-03 | 2006-02-09 | Voith Patent Gmbh | Method for applying a liquid or pasty application medium to a continuous paper or cardboard web, and paper or cardboard machine for carrying out said method |
WO2006013173A3 (en) * | 2004-08-03 | 2007-01-25 | Voith Patent Gmbh | Method for applying a liquid or pasty application medium to a continuous paper or cardboard web, and paper or cardboard machine for carrying out said method |
WO2006037774A1 (en) * | 2004-10-05 | 2006-04-13 | Voith Patent Gmbh | Method for producing a fibrous material web |
WO2008023093A1 (en) | 2006-08-24 | 2008-02-28 | Stora Enso Oyj | Method for coating a paper surface and a product thus obtained |
CN106400593A (en) * | 2016-06-24 | 2017-02-15 | 广西金桂浆纸业有限公司 | A starch spraying device used for a laboratory |
Also Published As
Publication number | Publication date |
---|---|
FR1550034A (en) | 1968-12-13 |
SE348507B (en) | 1972-09-04 |
CH479771A (en) | 1969-10-15 |
FI51380B (en) | 1976-08-31 |
DE1611787B2 (en) | 1976-12-23 |
DE1611787A1 (en) | 1971-03-25 |
FI51380C (en) | 1976-12-10 |
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