Pulp-free underpads: this is a further promising development of ultra-thin structures, in the manufacture of which only powerful super absorbing polymers, structured in the form of fibers and granules, which take on the entire function of the absorbent layer, are packed inside the “sandwich” of layers of sanitary tissue paper. The lower supporting layer can be made of nonwoven material for a more reliable fixation of the polymer grain layer, when laying, polymer “activation” technologies are used to create a more stable layer.
Scheme of pulp-free products:
1. Coating layer: nonwoven material
2. Covering layer of sanitary tissue paper
3. Absorbing layer – granular super absorbing polymers (SAP)
4. Supporting layer: sanitary tissue paper or nonwoven material.
6. Protective layer: PE film