JPS56166391A - Production of length rule provided with black scale on golden surface - Google Patents

Production of length rule provided with black scale on golden surface

Info

Publication number
JPS56166391A
JPS56166391A JP6995980A JP6995980A JPS56166391A JP S56166391 A JPS56166391 A JP S56166391A JP 6995980 A JP6995980 A JP 6995980A JP 6995980 A JP6995980 A JP 6995980A JP S56166391 A JPS56166391 A JP S56166391A
Authority
JP
Japan
Prior art keywords
plating
golden
scale
black
scale lines
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
JP6995980A
Other languages
Japanese (ja)
Inventor
Kiyoshi Haniyu
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.)
SHINWA RULES
Shinwa Rules Co Ltd
Original Assignee
SHINWA RULES
Shinwa Rules 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 SHINWA RULES, Shinwa Rules Co Ltd filed Critical SHINWA RULES
Priority to JP6995980A priority Critical patent/JPS56166391A/en
Publication of JPS56166391A publication Critical patent/JPS56166391A/en
Pending legal-status Critical Current

Links

Landscapes

  • Length-Measuring Instruments Using Mechanical Means (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

PURPOSE: To form an easy to see black scale on a golden surface by subjecting the surface of a length rule blank material to golden plating then coating photosensitive liquid thereon, exposing scale lines and developing the same, then peeling the golden plating of the scale lines, and further performing etching and black plating.
CONSTITUTION: The entire surface of a blank material for a length rule is subjected to golden plating, and photosensitive liquid providing both an etching protecting film and a plating protecting film is coated thereon. A negative film for prescribed scale is placed on this, and is subjected to exposure treatment and further to developing. The coating film removed of the coating film in the places of the scale lines alone is heated to 250W300°C in a gas furnace, whereby hard film treatment is accomplished. Next, the golden plating at the scale lines is peeled by chemical treatment, after which the exposed scale lines are etched. After black plating is carried out on the parts of the etched scale lines, the protecting film is dissolved away by a peeling agent which does not attack the black plating, whereby the length rule provided with the black scale on the golden surface is produced.
COPYRIGHT: (C)1981,JPO&Japio
JP6995980A 1980-05-26 1980-05-26 Production of length rule provided with black scale on golden surface Pending JPS56166391A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6995980A JPS56166391A (en) 1980-05-26 1980-05-26 Production of length rule provided with black scale on golden surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6995980A JPS56166391A (en) 1980-05-26 1980-05-26 Production of length rule provided with black scale on golden surface

Publications (1)

Publication Number Publication Date
JPS56166391A true JPS56166391A (en) 1981-12-21

Family

ID=13417692

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6995980A Pending JPS56166391A (en) 1980-05-26 1980-05-26 Production of length rule provided with black scale on golden surface

Country Status (1)

Country Link
JP (1) JPS56166391A (en)

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