GB1468298A - Method of making a shadow mask for a colour television tube - Google Patents

Method of making a shadow mask for a colour television tube

Info

Publication number
GB1468298A
GB1468298A GB4098874A GB4098874A GB1468298A GB 1468298 A GB1468298 A GB 1468298A GB 4098874 A GB4098874 A GB 4098874A GB 4098874 A GB4098874 A GB 4098874A GB 1468298 A GB1468298 A GB 1468298A
Authority
GB
United Kingdom
Prior art keywords
web
etching
resist layer
chamber
spray
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
GB4098874A
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.)
Buckbee Mears Co
Original Assignee
Buckbee Mears Co
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 Buckbee Mears Co filed Critical Buckbee Mears Co
Publication of GB1468298A publication Critical patent/GB1468298A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F1/00—Etching metallic material by chemical means
    • C23F1/02—Local etching
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/14—Manufacture of electrodes or electrode systems of non-emitting electrodes
    • H01J9/142—Manufacture of electrodes or electrode systems of non-emitting electrodes of shadow-masks for colour television tubes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2209/00—Apparatus and processes for manufacture of discharge tubes
    • H01J2209/01—Generalised techniques
    • H01J2209/012—Coating
    • H01J2209/015—Machines therefor

Abstract

1468298 Etching: etching apparatus BUCKBEE-MEARS CO 20 Sept 1974 [11 July 1974] 40988/74 Heading BJ In a method of etching an aperture in a web 9, a first resist layer 42 defining an unprotected region X 1 is provided on one surface of the web, a second resist layer 44 defining a larger unprotected region X 2 is provided on the second surface of the web, the web is etched to provide dished regions (as shown), the resist layer 42 is then covered with a further resist layer 43 covering the region X 1 and the second surface of the web is further etched to provide an opening extending through the material of the web. The resist may be a polymeric plastics material. Etching apparatus.-A shadow mask for a colour television tube is produced by the above method in a continuously operating apparatus comprising a first spray etching chamber 11, a spray rinsing chamber 12, a drying chamber 13 having heaters 23 and 24, a spray coating chamber 14 (for providing resist layer 43), drying chamber 15 and further spray etching chamber 16.
GB4098874A 1974-07-11 1974-09-20 Method of making a shadow mask for a colour television tube Expired GB1468298A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US48766374A 1974-07-11 1974-07-11

Publications (1)

Publication Number Publication Date
GB1468298A true GB1468298A (en) 1977-03-23

Family

ID=23936650

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4098874A Expired GB1468298A (en) 1974-07-11 1974-09-20 Method of making a shadow mask for a colour television tube

Country Status (9)

Country Link
JP (1) JPS519034A (en)
BE (1) BE820732A (en)
BR (1) BR7410019A (en)
CA (1) CA1047377A (en)
DE (1) DE2446781A1 (en)
FR (1) FR2278150A1 (en)
GB (1) GB1468298A (en)
IT (1) IT1022731B (en)
NL (1) NL7412740A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021073194A1 (en) * 2019-10-17 2021-04-22 昆山国显光电有限公司 Mask, manufacturing method of mask, and manufacturing method of display panel

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IE56079B1 (en) * 1982-10-06 1991-04-10 Novo Industri As Method for production of an immobilized enzyme preparation by means of a crosslinking agent
JPS6070185A (en) * 1983-09-26 1985-04-20 Toshiba Corp Production of shadow mask
JPS6160889A (en) * 1984-08-30 1986-03-28 Toshiba Corp Production of shadow mask
JPH0522346U (en) * 1991-09-05 1993-03-23 東洋紡績株式会社 Labeled container
JP6915467B2 (en) * 2017-09-11 2021-08-04 スターライト工業株式会社 Torque control device using MR fluid

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021073194A1 (en) * 2019-10-17 2021-04-22 昆山国显光电有限公司 Mask, manufacturing method of mask, and manufacturing method of display panel

Also Published As

Publication number Publication date
FR2278150A1 (en) 1976-02-06
CA1047377A (en) 1979-01-30
JPS519034A (en) 1976-01-24
IT1022731B (en) 1978-04-20
DE2446781A1 (en) 1976-01-29
BR7410019A (en) 1976-05-25
BE820732A (en) 1975-02-03
NL7412740A (en) 1976-01-13
JPS5726345B2 (en) 1982-06-03
FR2278150B1 (en) 1978-09-22

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee