Moistening section activates remoistening paste on envelope edges while narrow pressure rollers compress only the adhesive zones.
Folding lateral edges into connected hems eliminates waste material generation while maintaining high-speed production rates.
Folding a filmy bag multiple times and securing it with adhesive tape creates an air-tight seal for pellicle cases.
A seed envelope bonds a transparent plastic sheet to paper, preventing tearing from seed stress while maintaining structural integrity.