Technical seminar in Turkey, May 11th 2023

Which type of fibres is used to produce semi-chemical fluting?

• short fibres (like birch or eucalyptus)

• long fibres (like pine)

Which paper test is more suitable for testing compression strength for low grammage liners?

• RCT test

• SCT test

For single-wall corrugated board with the same paper composition (same liners and a fluting) but with different flute profiles, which corrugated board will have the highest ECT values?

• E flute

• B flute

• C flute

How to reduce corrugated board washboarding effect?

• Reduce glue application?

• Increase steam pressure at hot plates?

• Increase liner grammage?

What is the share of flexo printing for corrugated packaging globally?

• about 50%

• about 70%

• about 80%

• about 90%

Which statement below is correct?

• more heat at the corrugator cause no issues for board quality

• semi-chemical fluting needs sufficient amount of steam and heat for flute formation

• board temperature after the last hot plate is very important for process control at the corrugator

How is the defect shown on the picture called?

• cracking

• delamination

• warp