Podcast
Questions and Answers
What was a major problem with using limestone for lithographic printing?
What was a major problem with using limestone for lithographic printing?
- They were too light
- They were too easy to bend
- They were too small
- They were difficult to store and expensive (correct)
Who's work led to the development of metal plates in lithography?
Who's work led to the development of metal plates in lithography?
- Litho
- Cylinder
- Rotary
- Poitevin (correct)
What was used to coat metal plates in the lithographic process?
What was used to coat metal plates in the lithographic process?
- Potassium sulfate
- Potassium nitrate
- Potassium chloride
- Potassium bichromate and albumin (correct)
What was the purpose of washing the metal plate with water in the lithographic process?
What was the purpose of washing the metal plate with water in the lithographic process?
Why were metal plates introduced in lithography?
Why were metal plates introduced in lithography?
What determined the quality of the printed image in lithography?
What determined the quality of the printed image in lithography?
What was a major challenge in the making of lithographic printing plates?
What was a major challenge in the making of lithographic printing plates?
What was a key feature of the pre-coated aluminum plates developed by 3M in 1951?
What was a key feature of the pre-coated aluminum plates developed by 3M in 1951?
What was the purpose of the Gum Arabic in the plate development process?
What was the purpose of the Gum Arabic in the plate development process?
What is the primary difference between additive and subtractive plates?
What is the primary difference between additive and subtractive plates?
In what decade was a significant advancement introduced in plate making?
In what decade was a significant advancement introduced in plate making?
Why were paper-based plates not suitable for long runs?
Why were paper-based plates not suitable for long runs?
Why was the image produced on the back of the sheet sharper and clearer than the direct litho image?
Why was the image produced on the back of the sheet sharper and clearer than the direct litho image?
What was the outcome when the feeder missed feeding a sheet while the press was in operation?
What was the outcome when the feeder missed feeding a sheet while the press was in operation?
What was Mr. Rubel's intention when designing a new press?
What was Mr. Rubel's intention when designing a new press?
How many offset machines did Mr. Rubel and A.B. Sherwood produce?
How many offset machines did Mr. Rubel and A.B. Sherwood produce?
What was the significant innovation of Charles Harris's offset press?
What was the significant innovation of Charles Harris's offset press?
What was required for Charles Harris's offset press?
What was required for Charles Harris's offset press?
