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TRAPPING

Superimposing one colour onto another so that the first down does not lay properly before the next colour is printed. Causes:  – Incomplete drying of

STRIATIONS

Parallel thin lines or bands about 1 mm wide, present in solid print areas running in the direction of the press. Causes: – Excessive ink

DARK DIRTY PRINT

Excessive ink transfer to substrate. Excess colour strength. Causes: – Ink viscosity too high or too low with dot gain; – Colour concentration too high; – Ink film

WEAK PATCHY PRINT

The colour is lacking in colour strength and body. Causes: – Excessive reduction in ink viscosity; – Excess extender varnish; – Ink settling out; –

SLUR

A condition caused by slippage at the moment of impression between the substrate and plate. Slur is characterised by the smearing of the trailing edges

STREAKS

Unwanted ink trans­fer onto substrate, ink metering system out of adjustment or dam­aged. Causes: – Undissolved ink particles; – Ink thrown off or dripping from

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TECHNIQUE

Need-to-know facts for printing professionals

ADHESION

Print can be removed by scratching the surface. Print fails adhesion tape, rub or wrinkle tests. Causes: – Wrong ink used for substrate; – Ink

BLOCKING

An undesired adhesion between touching layers of material caused by moderate pressure and/or temperature change. The extent to which damage to at least one surface

BRITTLENESS

Ink film cracks or breaks on substrate when flexed. Causes:  – Excessive heat or UV exposure level in drying/curing system causing a moisture and plasticizer

CREASING

Creases form in substrate. Causes:  -Baggy substrate; – Web guide not operating or properly set; – Press out of alignment; – Foreign matter on press

VALUES

Social and ethical implications of running a business

ASSOCIATIONISM

Economic support for the knowledge and protection of mountains. www.scicaixxxottobre.it

CULTURE

Creating business is creating culture. Considering how the knowledge of the Emilian territory is indivisible from that of its manufacturing, industrial, and productive activities, it

DISABILITIES

Periodic financial support for the transportation of disabled people, the elderly, and people in wheelchairs. www.avia-asia.it

DISEASE

Giugni Gian Carlo (mourned president of Giugni Srl) awards the winning team of the football tournament organized by Giugni Srl for the fundraising against leukaemia.