Washing and Post-Treatment of Hollow Fibre Membranes: Bundle vs Bobbin

At a glance. A Tech Inc. Hollow Fibre Washing and Post-Treatment System removes solvent and soaks fibres in a pore preserver before drying.

Bundle or bobbin

• Bundle type: fibres cut to length and hung in tanks. Good for module production.

• Bobbin type: whole bobbins rotate through heated water. Good straight after spinning.

Good practice

• Warm, circulated water for faster solvent removal.

• Controlled glycerol concentration and soak time.

• Gentle drying.

Frequently asked questions

How long should fibres be washed? Typically 24 to 48 hours, depending on solvent and wall thickness.

Ask mail@techincresearch.com for sizing.