Absorbent article with improved capillary acceleration sheet

An absorbent article comprising a liquid pervious topsheet, a liquid impervious backsheet, absorbent material typically comprising superabsorbent polymer particles, positioned between the liquid pervious topsheet and the liquid impervious backsheet, and a capillary acceleration sheet between the absorbent material and the liquid pervious topsheet,

• wherein the absorbent material is arranged on a bottom core wrap sheet such that one or more channels are formed, wherein less absorbent material per surface area is present in the one or more channels compared to an area around the one or more channels,
• wherein the capillary acceleration sheet comprises a first layer and a second layer, and wherein the capillary acceleration sheet comprises first fibres in the first layer having an average first diameter above 20 micron, and second fibres in the second layer having an average second diameter below 20 micron, wherein the first layer and the second layer each have a basis weight between 6-30 g/m2, wherein the second layer is closer to the absorbent material than the first layer;
• wherein the capillary acceleration sheet is attached along a periphery to the bottom core wrap sheet.