Thermal Bonding of Airlaid Webs with Bicomponent Fibre
topic
Thermally bonded airlaid production incorporates bicomponent staple fibre at 10 to 30 percent blend level in the airlaid forming head alongside wood pulp fibres, with through-air bonding ovens or calender bonding at temperatures above the bicomponent sheath melt point creating bonds at fibre intersection points without requiring chemical binder application, producing soft, bulk-retaining airlaid webs for wipes and feminine hygiene applications.
Role
Provides a chemical binder-free bonding alternative for airlaid nonwovens that produces softer, bulkier fabrics than latex bonding while maintaining adequate strength for wipes and feminine hygiene applications, with thermally bonded airlaid being preferred in applications requiring skin contact softness and clean chemistry for personal care products where latex binder residues raise consumer acceptance and regulatory concerns.