The Ultimate Guide to Tissue Machine: Types, Working Principles, and Maintenance Tips
In the world of paper production, tissue machines are essential for creating soft, absorbent products like toilet paper and facial tissues. This comprehensive guide explores everything you need to know about tissue machines, from their types to maintenance best practices.
Types of Tissue Machines
Tissue machines come in various designs, including crescent-former and twin-wire systems. Crescent-former machines are popular for their efficiency in producing high-quality tissue with excellent softness. Twin-wire machines, on the other hand, offer superior formation and are ideal for high-speed production lines.
Working Principles Explained
The tissue-making process begins with pulp preparation, followed by forming, pressing, drying, and creping. During forming, the pulp is spread onto a wire mesh to create a thin sheet. Pressing removes excess water, while drying—often through yankee dryers—ensures the tissue reaches the desired moisture content. Creping adds softness and bulk by scraping the dried sheet off the cylinder.
Maintenance Tips for Longevity
Regular maintenance is crucial to avoid downtime and extend machine life. Key practices include lubricating moving parts, inspecting wires and felts for wear, and monitoring dryer surfaces for buildup. Scheduling routine checks can prevent costly repairs and ensure consistent product quality.
Common Questions Answered
What factors affect tissue softness? Softness depends on pulp quality, creping technique, and machine calibration. How often should maintenance be performed? It varies by usage, but monthly inspections are recommended for high-volume operations.
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