GB1042627A - Improvements in and relating to coating travelling webs - Google Patents

Improvements in and relating to coating travelling webs

Info

Publication number
GB1042627A
GB1042627A GB29320/64A GB2932064A GB1042627A GB 1042627 A GB1042627 A GB 1042627A GB 29320/64 A GB29320/64 A GB 29320/64A GB 2932064 A GB2932064 A GB 2932064A GB 1042627 A GB1042627 A GB 1042627A
Authority
GB
United Kingdom
Prior art keywords
coating
web
cushion
therefrom
air 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
Application number
GB29320/64A
Inventor
Derek James Dobbie
John Brasier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
British Cellophane Ltd
Original Assignee
British Cellophane Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by British Cellophane Ltd filed Critical British Cellophane Ltd
Priority to GB29320/64A priority Critical patent/GB1042627A/en
Priority to DE1965B0082876 priority patent/DE1546850B1/en
Publication of GB1042627A publication Critical patent/GB1042627A/en
Expired legal-status Critical Current

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
    • B05C11/06—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface with a blast of gas or vapour
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
    • B05D3/0406—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases the gas being air
    • B05D3/042—Directing or stopping the fluid to be coated with air
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2201/00—Polymeric substrate or laminate
    • B05D2201/02—Polymeric substrate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2203/00—Other substrates
    • B05D2203/22—Paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2252/00—Sheets
    • B05D2252/02—Sheets of indefinite length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2252/00—Sheets
    • B05D2252/10—Applying the material on both sides

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)

Abstract

A method for coating a flexible travelling web with a liquid coating composition comprises coating a first side of the web, removing excess composition therefrom, coating the second side of the web, and removing excess coating therefrom by an air knife while the web is supported, first coated side downwards, on a cushion of gaseous sodium. The coating is preferably applied by applicator rolls the excess coating being removed by an air knife. The cushion of gaseous medium is preferably formed by means of a tube having several axially extending, circumferentially spaced rows of perforations through which the gas, e.g. air is pumped, Fig. 2 (not shown). The coated web is then passed through a dryer, preferably heated by infra-red heaters, and wound in a roll. The web may be paper, film of cellulosic material such as regenerated cellulose, cellulose esters and ethers, and other cellulosic derivatives or films of synthetic plastics materials such as polyethylene, polypropylene, polyamides, polyvinyl derivatives and the like. The coating composition may comprise moisture-proof, heat-sealable compositions of aqueous dispersions of vinylidene chloride copolymers.
GB29320/64A 1964-07-17 1964-07-17 Improvements in and relating to coating travelling webs Expired GB1042627A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB29320/64A GB1042627A (en) 1964-07-17 1964-07-17 Improvements in and relating to coating travelling webs
DE1965B0082876 DE1546850B1 (en) 1964-07-17 1965-07-16 Method for coating both sides of a web with a liquid coating agent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB29320/64A GB1042627A (en) 1964-07-17 1964-07-17 Improvements in and relating to coating travelling webs

Publications (1)

Publication Number Publication Date
GB1042627A true GB1042627A (en) 1966-09-14

Family

ID=10289691

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29320/64A Expired GB1042627A (en) 1964-07-17 1964-07-17 Improvements in and relating to coating travelling webs

Country Status (2)

Country Link
DE (1) DE1546850B1 (en)
GB (1) GB1042627A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4402627A1 (en) * 1994-01-31 1994-07-14 Voith Gmbh J M Web coating
US6168661B1 (en) * 1998-04-10 2001-01-02 Johnson Controls Technology Company Battery cell coating apparatus and method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2833241A (en) * 1955-04-18 1958-05-06 George C Crowley Machine for coating spherical objects
DE1032134B (en) * 1955-09-03 1958-06-12 Huels Chemische Werke Ag Process for the production of water-repellent coatings on hydrophilic, non-fibrous surface structures with aqueous plastic dispersions

Also Published As

Publication number Publication date
DE1546850B1 (en) 1970-05-14

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