Mottling - Why it is Difficult to Predict in Laboratory Tests

Details:

Year: 2000
Pages: 10

Summary:

Mottling in offset printing remains a major problem. Paper laboratories are looking for new ways to predict it. The CTP is taking a new approach by trying to separate the so-called phenomena of backtrap mottle and local ink refusal using as analytical tool the diagnostoc curve created during industrial trials. The purpose of these new tests and analyses is the definition of specifications for new equipment.