GB901683A - Improvements relating to the coating of web materials - Google Patents
Improvements relating to the coating of web materialsInfo
- Publication number
- GB901683A GB901683A GB35873/60A GB3587360A GB901683A GB 901683 A GB901683 A GB 901683A GB 35873/60 A GB35873/60 A GB 35873/60A GB 3587360 A GB3587360 A GB 3587360A GB 901683 A GB901683 A GB 901683A
- Authority
- GB
- United Kingdom
- Prior art keywords
- inch
- coating
- web
- equalled
- knife
- 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
- 239000011248 coating agent Substances 0.000 title abstract 6
- 238000000576 coating method Methods 0.000 title abstract 6
- 239000000463 material Substances 0.000 title 1
- 239000001828 Gelatine Substances 0.000 abstract 3
- 229920000159 gelatin Polymers 0.000 abstract 3
- 235000019322 gelatine Nutrition 0.000 abstract 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- 239000000839 emulsion Substances 0.000 abstract 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract 1
- 239000001307 helium Substances 0.000 abstract 1
- 229910052734 helium Inorganic materials 0.000 abstract 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
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
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B15/00—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours
- D06B15/09—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours by jets of gases
-
- 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
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/74—Applying photosensitive compositions to the base; Drying processes therefor
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
901,683. Coating webs. DU PONT DE NEMOURS & CO., E. I. Oct. 19, 1960 [Nov. 4, 1959], No. 35873/60. Class 140. An apparatus for applying a smooth coating, e.g. of a gelatine emulsion or solution, to a moving web 10 comprises means for applying a coating of at least twice the desired wet thickness (x), an air knife 7, 8 for directing a stream of air to impinge at a line 11 transverse to the coated web 10, and a rod or taut wire 9 of diameter d parallel to the line 11 and below the knife 7, 8 at distances p, q, indicated on the Figure, d being 4x to 20x, p being x to 6x, and q being d to 5d, i.e. 4x to 100x. In one example, in which a gelatine silver idiobromide emulsion was applied to a web moving at 150 feet per minute, d equalled 0.063 inch, p equalled 0.006 inch, and q equalled 0.12 inch, and in another example employing a gelatine solution, d was 0.037 inch, p 0.02 inch, and q 0.1 inch. The coating is applied by passing the web about a roll which makes skim contact with the coating liquid in a trough. More than one rod or wire may be employed and may be non- circular in cross-section, e.g. tear-drop, and instead of air, steam, nitrogen or helium may be employed in the knife 7, 8. Both sides of the web may be coated and doctored, e.g. by employing the apparatus described in U.S.A. Specification 2,423,768. U.S.A. Specification 2,139,628 also is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US850860A US3038441A (en) | 1959-11-04 | 1959-11-04 | Coating apparatus employing an air knife doctor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB901683A true GB901683A (en) | 1962-07-25 |
Family
ID=25309295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB35873/60A Expired GB901683A (en) | 1959-11-04 | 1960-10-19 | Improvements relating to the coating of web materials |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3038441A (en) |
| DE (1) | DE1184678B (en) |
| GB (1) | GB901683A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3424126A (en) * | 1963-01-25 | 1969-01-28 | Beloit Corp | Air-knife coater |
| US3408983A (en) * | 1967-05-26 | 1968-11-05 | Gaf Corp | Air release device on air knives |
| US5612092A (en) * | 1994-10-06 | 1997-03-18 | Minnesota Mining And Manufacturing Company | Knife coating method using ascension of the fluid by its tension |
| KR100644951B1 (en) * | 1999-01-14 | 2006-11-10 | 엔오케이 클루바 가부시키가이샤 | Coating layer forming machine and method of forming it |
| RU2372997C1 (en) * | 2007-09-10 | 2009-11-20 | Нитиха Ко., Лтд. | Method of wall panel coating |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2386156A (en) * | 1943-01-25 | 1945-10-02 | Warren S D Co | Air doctor |
| US2679231A (en) * | 1951-09-07 | 1954-05-25 | John Waldron Corp | Web coating apparatus |
| BE570270A (en) * | 1957-08-21 |
-
1959
- 1959-11-04 US US850860A patent/US3038441A/en not_active Expired - Lifetime
-
1960
- 1960-10-19 GB GB35873/60A patent/GB901683A/en not_active Expired
- 1960-10-31 DE DEP25952A patent/DE1184678B/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US3038441A (en) | 1962-06-12 |
| DE1184678B (en) | 1964-12-31 |
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