Manufacturer's genealogy of law of the retractility thin slice of the present invention make the elastic layer with elastic extension 1 and substantially non-resilient non-elastic fibrous layer 2,3 and the band-like laminated shim 10A that is partially engageable with for two layers or containing elastic component and substantially non-resilient ingredient and the sheets of fibres for being formed with part embossed portion by embossing processing, using between two layers joint portion 4 or aforementioned embossed portion extend as basic point, and obtain retractility thin slice 10. Retractility thin slice system has the protrusion and ditch portion in the direction for extending the orthogonal what extending direction of what, and joint portion 4 or embossed portion form the what protrusion.本發明之伸縮性薄片之製造方法係使具有彈性伸縮性之彈性層1及實質上非彈性之非彈性纖維層2、3且兩層部分地接合之帶狀的疊層薄片10A、或著含有彈性成分及實質上非彈性之成分且藉由壓花加工而形成有部分壓花部之纖維薄片，以兩層彼此之間之接合部4或前述壓花部為基點延伸，而獲得伸縮性薄片10。伸縮性薄片係具有延伸於正交於延伸方向之方向之隆起部及溝部，接合部4或壓花部形成於該隆起部。
