JPS5475435A - Artificial patina-decorated sheet - Google Patents

Artificial patina-decorated sheet

Info

Publication number
JPS5475435A
JPS5475435A JP14199077A JP14199077A JPS5475435A JP S5475435 A JPS5475435 A JP S5475435A JP 14199077 A JP14199077 A JP 14199077A JP 14199077 A JP14199077 A JP 14199077A JP S5475435 A JPS5475435 A JP S5475435A
Authority
JP
Japan
Prior art keywords
sheet
copper
water
patina
artificial
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.)
Pending
Application number
JP14199077A
Other languages
Japanese (ja)
Inventor
Susumu Nagase
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP14199077A priority Critical patent/JPS5475435A/en
Publication of JPS5475435A publication Critical patent/JPS5475435A/en
Pending legal-status Critical Current

Links

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  • Chemical Treatment Of Metals (AREA)

Abstract

PURPOSE: To make a patina decoration hard to exfoliate at the time of excecution, prevent uneven discoloration during exposure to the open air, and maintain the appearance fine over a long period, by forming an artificial patina layer on the surface of a base sheet such as copper sheet and coating a water sol. transparent protective film.
CONSTITUTION: A copper sheet or a copper-plated sheet is degreased and coated with an etchant consisting of copper sulfate, acetic acid, NaCl, patina, water, etc. to etch the surface to such a degree that it turns brown, followed by washing with water and drying. Next the sheet is coated with an artificial patina liquid consisting of hydrochloric acid, copper acetate, copper carbonate, arsenious acid, ammonium chloride, copper nitrate, water, etc., dried, and washed with water. The resulting artificial patina layer is coated with water sol. clear lacquer or the like to form a water sol. transparent protective film, thus giving a decorated sheet for roofing. About a month after covering a copper roof with the sheet, the protective film disapperas and the sheet assumes a uniform artificial bluish green color. About 6 months later the sheet turns natural bluish green.
COPYRIGHT: (C)1979,JPO&Japio
JP14199077A 1977-11-26 1977-11-26 Artificial patina-decorated sheet Pending JPS5475435A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14199077A JPS5475435A (en) 1977-11-26 1977-11-26 Artificial patina-decorated sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14199077A JPS5475435A (en) 1977-11-26 1977-11-26 Artificial patina-decorated sheet

Publications (1)

Publication Number Publication Date
JPS5475435A true JPS5475435A (en) 1979-06-16

Family

ID=15304820

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14199077A Pending JPS5475435A (en) 1977-11-26 1977-11-26 Artificial patina-decorated sheet

Country Status (1)

Country Link
JP (1) JPS5475435A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5669375A (en) * 1979-11-05 1981-06-10 Daikan:Kk Producing method of verdigrisy copper plate for roof
JPH01268879A (en) * 1988-04-19 1989-10-26 Shuzo Nagano Patinating agent
CN103602975A (en) * 2013-11-22 2014-02-26 大连碧城环保科技有限公司 Metal high-temperature bluing (blacking) clean production process

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5669375A (en) * 1979-11-05 1981-06-10 Daikan:Kk Producing method of verdigrisy copper plate for roof
JPS5752425B2 (en) * 1979-11-05 1982-11-08
JPH01268879A (en) * 1988-04-19 1989-10-26 Shuzo Nagano Patinating agent
JPH0564716B2 (en) * 1988-04-19 1993-09-16 Shuzo Nagano
CN103602975A (en) * 2013-11-22 2014-02-26 大连碧城环保科技有限公司 Metal high-temperature bluing (blacking) clean production process

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