GB1269979A - Web coating process - Google Patents

Web coating process

Info

Publication number
GB1269979A
GB1269979A GB29452/69A GB2945269A GB1269979A GB 1269979 A GB1269979 A GB 1269979A GB 29452/69 A GB29452/69 A GB 29452/69A GB 2945269 A GB2945269 A GB 2945269A GB 1269979 A GB1269979 A GB 1269979A
Authority
GB
United Kingdom
Prior art keywords
web
coating
variations
signal
coating device
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
GB29452/69A
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co 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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Publication of GB1269979A publication Critical patent/GB1269979A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D5/00—Control of dimensions of material
    • G05D5/02—Control of dimensions of material of thickness, e.g. of rolled material
    • G05D5/03—Control of dimensions of material of thickness, e.g. of rolled material characterised by the use of electric means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92009—Measured parameter
    • B29C2948/92114—Dimensions
    • B29C2948/92152—Thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92009—Measured parameter
    • B29C2948/92295—Errors or malfunctioning, e.g. for quality control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92323—Location or phase of measurement
    • B29C2948/92361—Extrusion unit
    • B29C2948/92409—Die; Nozzle zone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92733—Electrical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92933—Conveying, transporting or storage of articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Laminated Bodies (AREA)
  • Coating Apparatus (AREA)

Abstract

1,269,979. Coating apparatus. FUJI PHOTO FILM CO. Ltd. 10 June, 1969 [10 June, 1968], No. 29452/69. Heading B2L. [Also in Division D1] Variations in the thickness of a coated layer applied to a moving web are negated by deriving an electric signal from disturbances which act to cause such variations, amplifying the signal and subsequently applying it as a potential difference between the coating compositions and the back of the web being coated whereby a varying and compensating electrostatic force of attraction occurs between the composition and the coating device. In Fig. 1 mechanical vibration of the apparatus is detected and converted to an electric signal at 7, which may be a capacitor-type vibration meter. The signal is polarity-reversed at 8, has its phase shifted at 9 and is amplified at 10, the output having a bias voltage applied thereto and being applied between the coating device 4 and the web 1 by electrodes 13, 14. As shown, the metal roller 3 carries an insulating layer 2. In another embodiment (Fig. 2, not shown) a multilayer coating is applied, and variations in the uncoated web thickness are measured and fed, via a time-delay device, as an amplified p.d. between the coating device and the web, as in Fig. 1. Different disturbance factors may be simultaneously detected and combined to produce an aggregate correcting p.d. Other types of detectors are specified.
GB29452/69A 1968-06-10 1969-06-10 Web coating process Expired GB1269979A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP43039801A JPS4932772B1 (en) 1968-06-10 1968-06-10

Publications (1)

Publication Number Publication Date
GB1269979A true GB1269979A (en) 1972-04-12

Family

ID=12563044

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29452/69A Expired GB1269979A (en) 1968-06-10 1969-06-10 Web coating process

Country Status (5)

Country Link
US (1) US3711312A (en)
JP (1) JPS4932772B1 (en)
BE (1) BE734289A (en)
FR (1) FR2010599A1 (en)
GB (1) GB1269979A (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3886900A (en) * 1972-08-01 1975-06-03 Cellophane Sa Apparatus for developing a latent charged image
FR2198652A5 (en) * 1972-09-05 1974-03-29 Allco
US3931787A (en) * 1973-06-20 1976-01-13 Stoody Company Apparatus for applying solid particle material to a strip
US3971336A (en) * 1975-06-27 1976-07-27 Owens-Corning Fiberglas Corporation Control system for controlling translation speed of carriage with respect to rotational speed of mandrel
US4038442A (en) * 1975-09-16 1977-07-26 Fuji Photo Film Co., Ltd. Method for coating
JPS5296133A (en) * 1976-02-05 1977-08-12 Youichi Muramatsu Golf practice stand
JPS5452971U (en) * 1977-09-19 1979-04-12
US4489671A (en) * 1978-07-03 1984-12-25 Polaroid Corporation Coating apparatus
US4334495A (en) * 1978-07-11 1982-06-15 Trw Inc. Method and apparatus for use in making an object
US4251566A (en) * 1978-10-12 1981-02-17 Champion International Corporation Gum thickness regulator
JPS58205561A (en) * 1982-05-25 1983-11-30 Fuji Photo Film Co Ltd Method and device for coating
DE3506524A1 (en) * 1985-02-25 1986-08-28 Akzo Gmbh, 5600 Wuppertal FLEXIBLE POLYIMIDE MULTILAYER LAMINATES
EP0542635B1 (en) * 1991-10-15 1999-06-09 Eastman Kodak Company Magnetic dispersion coating method and apparatus having high shear regions
US6475572B2 (en) 2000-04-06 2002-11-05 3M Innovative Properties Company Electrostatically assisted coating method with focused web-borne charges
US6368675B1 (en) 2000-04-06 2002-04-09 3M Innovative Properties Company Electrostatically assisted coating method and apparatus with focused electrode field
US6824818B2 (en) * 2001-12-27 2004-11-30 Soliant Llc Wet on wet process for producing films
CN103395185A (en) * 2013-08-06 2013-11-20 苏州启智机电技术有限公司 Coated-film quality detection structure

Also Published As

Publication number Publication date
FR2010599A1 (en) 1970-02-20
BE734289A (en) 1969-11-17
US3711312A (en) 1973-01-16
JPS4932772B1 (en) 1974-09-03

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