| Job Title |
Etcher, Hand |
| Job Description |
Etches Images (designs) On Surface Of Printing Rollers Coated
With Photo Or Acid Resist On Which Images Have Been Transferred
Photographically Or Engraved Pantographically, Utilizing
Knowledge Of Colors, Fabrics, And Etching And Printing
Techniques: Studies Design Sheet To Determine Etching
Requirements Based On Colors In Design, Type And Weight Of
Fabric, And Printing Sequence. Lifts Roller Onto Brackets Of
Rinsing Vat With Aid Of Etcher Helper, Hand (print. & Pub.).
Tapes Ends Of Roller With Masking Tape To Limit Etching To
Specified Width. Cleans Rollers Preparatory To Etching, Using
Sponge, Cleaning Chemicals, And Water. Transfers Roller From
Rinsing Vat To Acid Vat With Aid Of Etcher Helper, Hand (print.
& Pub.), Using Electric Hoist. Turns Valve To Agitate Acid
Solution With Compressed Air And Starts Machine To Rotate Roller
In Solution. Periodically Removes Roller From Acid Bath,
Measures Etch With Depth Gauge, And Moves Fingers Over Surface
Of Roller And Scans Etching Through Magnifying Lens To Detect
Processing Defects, Such As Pinholes And Collapsing Ground
Lines. Processes Roller Through Series Of Acid Baths To Increase
Depth Of Etch And Broaden Ground Lines Without Collapsing Top
(unengraved Portion) Of Design. Verifies Depth Of Etch, Using
Depth Gauge. Scratches Charcoal Into Etched Cavities To Make
Ground Lines Stand Out And Examines Engraving To Determine
Whether Roller Will Print With Desired Effect. Transfers Etched
Roller To Cleaning Vats, Starts Machine To Spin Roller In
Cleaning Solution, And Lowers Brush To Surface Of Spinning
Roller To Remove Acid-resistant Coating. Dilutes Acid With Water
To Obtain Etching Chemicals Of Specified Concentration.
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