The SEM images of kapok fibre shows homogenous circular cross section with wide air
filled lumen having wall thickness of about 1-2μm. the homogenous hollow wall thickness
ranged from 0.8 to 1.0μm making water difficult to penetrate. The average area occupied by
lumen contributes around 64% which does not collapse after harsh mechanical action. Kapok
fibre requires low energy for production as they have low trash and foreign contaminant and
hand opening & hand cleaning is sufficient enough