GB966225A - Improvements in or relating to paper-coating compositions - Google Patents
Improvements in or relating to paper-coating compositionsInfo
- Publication number
- GB966225A GB966225A GB36439/60A GB3643960A GB966225A GB 966225 A GB966225 A GB 966225A GB 36439/60 A GB36439/60 A GB 36439/60A GB 3643960 A GB3643960 A GB 3643960A GB 966225 A GB966225 A GB 966225A
- Authority
- GB
- United Kingdom
- Prior art keywords
- protein
- salt
- composition
- paper
- viscosity
- 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
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
- D21H19/50—Proteins
Landscapes
- Paper (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
In preparing a composition for coating paper, a salt-peptised protein, i.e. a protein peptised by a salt dissolved in an aqueous medium at a pH value not exceeding 7, e.g. containing 20 to 35%, by weight, of protein and 4 to 10% of the salt, is mixed with an aqueous slurry of a filler to reduce the concentration of the salt and thus increase the viscosity of the slurry and make it stiff, and the resulting mixture is agitated to disperse the protein and form a thin, homogeneous, liquid coating composition, in which free protein functions as a binder. Proteins specified are casein and soyabean protein. Fillers specified are clay, calcium carbonate, blanc fixe, talc and titanium dioxide. Salts specified are alkali metal and ammonium salts of strong monobasic acids, particularly sodium or ammonium nitrate. A small amount of a water-soluble, tallow-based soap and, preferably, a viscosity reducing agent, such as dicyandiamide, may be present during peptisation, which may be effected at temperatures above 60 DEG C., e.g. between 80 and 90 DEG C., followed by cooling to below 60 DEG C. to augment the increase in viscosity. The composition may also contain latex.ALSO:Paper is coated with an aqueous composition containing a protein such as casein or soyabean protein, an alkali metal or ammonium salt of a strong monobasic acid such as sodium or ammonium nitrate, for peptizing the protein (see Division C3) and a filler such as clay, calcium carbonate, blanc fixe, talc or titanium dioxide. The composition may also contain a water-soluble tallow-based soap, dicyandiamide and latex. The coating may be smoothed by an air-knife and the coated paper may be calendered.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US851541A US3081182A (en) | 1959-11-09 | 1959-11-09 | Salt peptized proteinaceous adhesive and coating composition employing the same as abinder |
Publications (1)
Publication Number | Publication Date |
---|---|
GB966225A true GB966225A (en) | 1964-08-06 |
Family
ID=25311015
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB36439/60A Expired GB966225A (en) | 1959-11-09 | 1960-10-24 | Improvements in or relating to paper-coating compositions |
Country Status (5)
Country | Link |
---|---|
US (1) | US3081182A (en) |
DE (1) | DE1298406B (en) |
FR (1) | FR1273574A (en) |
GB (1) | GB966225A (en) |
NL (2) | NL257662A (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3257234A (en) * | 1959-12-28 | 1966-06-21 | Warren S D Co | Process for producing a high gloss coated paper |
US3356516A (en) * | 1963-02-13 | 1967-12-05 | Mead Corp | Protein adhesive preparation |
US3377192A (en) * | 1963-12-17 | 1968-04-09 | Scott Paper Co | Process for coating paper with a heat flocculatable latex-based composition and the resultant product |
US4421564A (en) * | 1982-04-14 | 1983-12-20 | Ralston Purina Company | Heat coagulable paper coating composition with a soy protein adhesive binder |
US4961788A (en) * | 1989-06-28 | 1990-10-09 | Protein Technologies International, Inc. | Adhesive binders for paper coating composition having improved stability and whiteness |
US4997682A (en) * | 1989-07-06 | 1991-03-05 | Protein Technologies International, Inc. | Paper coating composition |
US8673398B2 (en) * | 2006-02-23 | 2014-03-18 | Meadwestvaco Corporation | Method for treating a substrate |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2198596A (en) * | 1937-04-29 | 1940-04-30 | Atlantic Res Associates Inc | Stabilized aqueous protein dispersion |
NL52764C (en) * | 1938-01-26 | 1900-01-01 | ||
US2334607A (en) * | 1939-06-16 | 1943-11-16 | Ind Patents Corp | Peptizing agent |
US2367678A (en) * | 1941-06-09 | 1945-01-23 | Salle Nat Bank | Greaseproof composition |
US2356795A (en) * | 1941-10-03 | 1944-08-29 | Glidden Co | Process of treating protein |
US2360828A (en) * | 1942-05-28 | 1944-10-24 | Vanderbilt Co R T | Coating compositions |
US2581111A (en) * | 1948-09-22 | 1952-01-01 | American Cyanamid Co | Protein adhesives containing dicyandiamide compounds as fluidizing agents |
US2894847A (en) * | 1955-04-22 | 1959-07-14 | Philadelphia Quartz Company Of | Water-resistant adhesive compositions |
-
0
- NL NL126853D patent/NL126853C/xx active
- NL NL257662D patent/NL257662A/xx unknown
-
1959
- 1959-11-09 US US851541A patent/US3081182A/en not_active Expired - Lifetime
-
1960
- 1960-10-24 GB GB36439/60A patent/GB966225A/en not_active Expired
- 1960-10-29 DE DEW28844A patent/DE1298406B/en active Pending
- 1960-11-08 FR FR843372A patent/FR1273574A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1298406B (en) | 1969-06-26 |
US3081182A (en) | 1963-03-12 |
NL126853C (en) | |
NL257662A (en) | |
FR1273574A (en) | 1961-10-13 |
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