The invention provides an on-line thermal composite rapid infiltration flow guide material and application thereof. The on-line thermal composite rapid infiltration flow guide material comprises a rapid infiltration flow guide layer and a dust-free paper layer which are in liquid communication with each other, the rapid infiltration flow guide layer is made of a porous non-woven material and accounts for 8-85% of the total
mass of the composite rapid infiltration flow guide material; the dust-free paper layer comprises at least one
fiber layer, the
fiber layer is made of cellulosic fibers and bi-component composite fibers, and the
mass of the dust-free paper layer accounts for 15-92% of the total
mass of the composite flow guide material dust-free paper; the mass of the
cellulose fibers in the
fiber layer accounts for 5-95% of the total mass of the
fiber layer, and the mass of the two-component composite fibers accounts for 5-95% of the total mass of the
fiber layer; when the number of the fiber
layers is two or more, the adjacent fiber
layers are communicated through liquid. A
sanitary napkin product prepared from the composite quick-seepage flow guide material is fluffy, soft, good in rebound resilience, low in production cost, good in overall performance and simple and novel in structure, not only has the functions of quick liquid flow guide, quick seepage,
diffusion and temporary
liquid storage, but also has excellent reverse seepage resistance.