GB533089A - Apparatus for, and method of, double web coating - Google Patents
Apparatus for, and method of, double web coatingInfo
- Publication number
- GB533089A GB533089A GB2719039A GB2719039A GB533089A GB 533089 A GB533089 A GB 533089A GB 2719039 A GB2719039 A GB 2719039A GB 2719039 A GB2719039 A GB 2719039A GB 533089 A GB533089 A GB 533089A
- Authority
- GB
- United Kingdom
- Prior art keywords
- air
- coating material
- web
- coating
- jets
- 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
- D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
- D21H25/08—Rearranging applied substances, e.g. metering, smoothing; Removing excess material
- D21H25/16—Rearranging applied substances, e.g. metering, smoothing; Removing excess material with a blast of vapour or gas, e.g. air knife
-
- 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
- D21H5/0005—Processes or apparatus specially adapted for applying liquids or other fluent materials to finished paper or board, e.g. impregnating, coating
- D21H5/006—Controlling or regulating
- D21H5/0062—Regulating the amount or the distribution, e.g. smoothing, of essentially fluent material already applied to the paper; Recirculating excess coating material applied to paper
- D21H5/007—Regulating the amount or the distribution, e.g. smoothing, of essentially fluent material already applied to the paper; Recirculating excess coating material applied to paper with a blast of gas or vapour, e.g. air knife
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
533,089. Coating webs. MERRILL, C. J. Oct. 4, 1939, No. 27190. [Class 140] Coating material in semi-liquid form is applied to both sides of a web and streams of air are directed against both sides of the web counter to its direction of travel. A web 14 has applied to it by rolls 2, 2a, excess coating material, after which it passes between collector chambers 3, 3a, air-jets 4, 4a and over an auxiliary air nozzle 6 and deflector plate 7, which, in conjunction with deflector surfaces 12, 12a on the collector chambers 3, 3a serve to position the web between the air-jets 4, 4a. Surplus coating material removed by the air-jets is deposited in chambers 3, 3a. In modifications of the apparatus the surplus coating material is caused to impinge on the coating rolls which are surrounded by the collector chambers, or large outlet passages are provided adjacent the coating rolls which permit expansion of the air and deposition of its entrained coating material.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2719039A GB533089A (en) | 1939-10-04 | 1939-10-04 | Apparatus for, and method of, double web coating |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2719039A GB533089A (en) | 1939-10-04 | 1939-10-04 | Apparatus for, and method of, double web coating |
Publications (1)
Publication Number | Publication Date |
---|---|
GB533089A true GB533089A (en) | 1941-02-06 |
Family
ID=10255653
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2719039A Expired GB533089A (en) | 1939-10-04 | 1939-10-04 | Apparatus for, and method of, double web coating |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB533089A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9731498B2 (en) | 2013-10-28 | 2017-08-15 | Hewlett-Packard Indigo B.V. | To apply a fluid to a substrate |
-
1939
- 1939-10-04 GB GB2719039A patent/GB533089A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9731498B2 (en) | 2013-10-28 | 2017-08-15 | Hewlett-Packard Indigo B.V. | To apply a fluid to a substrate |
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