GB1327433A - Method of calendering paper - Google Patents
Method of calendering paperInfo
- Publication number
- GB1327433A GB1327433A GB5328970A GB5328970A GB1327433A GB 1327433 A GB1327433 A GB 1327433A GB 5328970 A GB5328970 A GB 5328970A GB 5328970 A GB5328970 A GB 5328970A GB 1327433 A GB1327433 A GB 1327433A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rolls
- web
- paper
- calender
- nip
- 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
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G1/00—Calenders; Smoothing apparatus
Landscapes
- Paper (AREA)
Abstract
1327433 Calendering paper EASTMAN KODAK CO 9 Nov 1970 [10 Nov 1969] 53289/70 Heading D2A The density and smoothness of a paper web is increased by passing it, while it contains at least 2% by weight of water, through the nip between calender rolls which have hard, smooth, non-resilient surfaces, which exert pressure in the range from 10,000 to 50,000 lbs/ins<SP>2</SP> on the paper and said surfaces of which are maintained at a temperature in the range from 250F to 500F, the actual water content of the web, the actual pressure exerted by the rolls on the paper and the actual temperature of said surfaces being such that the paper does not blister on; passing through the nip. The web to be treated may have an opaque porous structure or it may be well formed and dense, have a basis weight of 40 lbs. per sq. ft. or be fairly closed in structure and non-porous. In the latter case, for example, the arc over which web-to-heated roll contact occurs is restricted by fly rolls and these are preferably positioned so that the web moves to and from the nip in a plane whereby contact is only at the nip. The rolls may be of cast iron or steel and they may be heated by passing steam or other heated fluid through passages in them or by electrical heating coils in them. The calender may have two or more rolls. The web may be passed successively through two or more nips at which successively increasing pressures are exerted on it. The web speed may be as low as 10 ft per min or as high as 2000 ft per min. The calender may form part of a paper-making machine or it may be a separate unit. The calender shown in Fig. 3 comprises rolls 10 to 24, the rolls 14 and 16 being at a high temperature, e.g. 300F, and the other rolls being at a low temperature, e.g. room temperature. Fly rolls 28, 30 prevent the web 26 from wrapping around the rolls 14, 16. More than two high temperature rolls may be provided. with further associated fly rolls. The calender is loaded through roll 10 and driven through roll 24. The finished paper may be used in the production of photographic papers, i.e. carrying one or more lightsensitive silver halide emulsion layers, especially papers intended for manufacture of photographic paper base of the resin coated type used for photographic papers used in diffusion transfer processes.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US87523069A | 1969-11-10 | 1969-11-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1327433A true GB1327433A (en) | 1973-08-22 |
Family
ID=25365418
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5328970A Expired GB1327433A (en) | 1969-11-10 | 1970-11-09 | Method of calendering paper |
Country Status (3)
Country | Link |
---|---|
US (1) | US3647619A (en) |
FR (1) | FR2069043A5 (en) |
GB (1) | GB1327433A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0217959A1 (en) * | 1985-02-08 | 1987-04-15 | Mitsubishi Paper Mills, Ltd. | Paper manufacturing method |
EP0369552A2 (en) * | 1988-11-17 | 1990-05-23 | Yhtyneet Paperitehtaat Oy | Method for calendering paper and paper manufactured by the method |
EP0539271A2 (en) * | 1991-10-23 | 1993-04-28 | Westvaco Corporation | Method for improving the printability of web offset paper |
US5671665A (en) * | 1995-03-09 | 1997-09-30 | Voith Sulzer Finishing Gmbh | Calender for the treatment of a paper web and process for its operation |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4016030A (en) * | 1975-01-29 | 1977-04-05 | Fort Howard Paper Company | Calendering paper containing thermoplastic contaminants |
US4624744A (en) * | 1984-05-18 | 1986-11-25 | S. D. Warren Company | Method of finishing paper utilizing substrata thermal molding |
US4749445A (en) * | 1984-05-18 | 1988-06-07 | S. D. Warren Company | Method of finishing paper utilizing substrata thermal molding |
JPS6459229A (en) * | 1987-08-29 | 1989-03-06 | Fuji Photo Film Co Ltd | Supporting body for photographic printing paper |
JP2659578B2 (en) * | 1989-02-06 | 1997-09-30 | 三菱製紙株式会社 | Photographic support |
DE4126233C1 (en) * | 1991-08-08 | 1992-09-17 | Sulzer-Escher Wyss Gmbh, 7980 Ravensburg, De | |
US5505820A (en) * | 1995-01-11 | 1996-04-09 | Westvaco Corporation | Method for providing enhanced smoothness for a paper web |
DE20321853U1 (en) * | 2002-01-29 | 2011-04-07 | Metso Paper, Inc. | Treatment apparatus for treating a painted or unpainted fibrous web |
EP1470290B1 (en) * | 2002-01-29 | 2009-01-21 | Metso Paper, Inc. | Processing device for processing a coated or uncoated fibrous web |
FI20020159A (en) * | 2002-01-29 | 2003-07-30 | Metso Paper Inc | Surface shaping apparatus and method using the apparatus for finishing coated or uncoated fibrous web |
DE10333524A1 (en) * | 2003-07-23 | 2005-02-17 | Voith Paper Patent Gmbh | Method and device for producing a fibrous web, in particular SC-A or SC-B paper web |
ES2351869T3 (en) * | 2004-04-23 | 2011-02-11 | Rohm And Haas Company | PROCEDURE TO PREPARE A DECORATIVE LAMINATED MATERIAL. |
-
1969
- 1969-11-10 US US875230A patent/US3647619A/en not_active Expired - Lifetime
-
1970
- 1970-11-05 FR FR7039780A patent/FR2069043A5/fr not_active Expired
- 1970-11-09 GB GB5328970A patent/GB1327433A/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0217959A1 (en) * | 1985-02-08 | 1987-04-15 | Mitsubishi Paper Mills, Ltd. | Paper manufacturing method |
EP0217959A4 (en) * | 1985-02-08 | 1988-11-28 | Mitsubishi Paper Mills Ltd | Paper manufacturing method. |
EP0369552A2 (en) * | 1988-11-17 | 1990-05-23 | Yhtyneet Paperitehtaat Oy | Method for calendering paper and paper manufactured by the method |
EP0369552A3 (en) * | 1988-11-17 | 1991-11-21 | Yhtyneet Paperitehtaat Oy | Method for calendering paper and paper manufactured by the method |
EP0539271A2 (en) * | 1991-10-23 | 1993-04-28 | Westvaco Corporation | Method for improving the printability of web offset paper |
EP0539271A3 (en) * | 1991-10-23 | 1993-05-12 | Westvaco Corporation | Method for improving the printability of web offset paper |
US5671665A (en) * | 1995-03-09 | 1997-09-30 | Voith Sulzer Finishing Gmbh | Calender for the treatment of a paper web and process for its operation |
EA000187B1 (en) * | 1995-03-09 | 1998-12-24 | Фойт Зульцер Финишинг Гмбх | Calender for treating a moving web of paper and process for treating thereof |
Also Published As
Publication number | Publication date |
---|---|
FR2069043A5 (en) | 1971-09-03 |
US3647619A (en) | 1972-03-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |