| 摘要 |
PURPOSE: To provide complete and effective engagement by forming a unit high molecular hook fastener constitutive section equipped with a thin and strong plate-shaped rear sheet having flexibility and a lot of hook members almost perpendicularly protruded from the upper surface of the rear sheet at intervals while having flexibility in the manner of power conduction. CONSTITUTION: A high molecular fastener constitutive section 10 is equipped with a thin and strong plate-shaped rear sheet 11 having flexibility provided with almost flat and parallel upper and lower main surfaces 12 and 13 and a lot of hook members 14, which are almost perpendicularly protruded from the upper surface 12 of the rear sheet 11, at intervals while having elastic flexibility. The hook fastener constitutive section includes 45 pieces, preferably, 70-100 pieces of hook members 14 protruded from the upper surface 12 of the rear sheet 11 percm<2> and on the outer hand, the total cross-sectional area to be occupied by a head section 17 in a plane parallel with the upper surface 12 of the rear sheet 11 is made less than 32% of the area of the upper surface 12, preferably, from 5% to 15% so that even a lot of protruded hook members 14 can be easily engaged with the loop fastener constitutive section. |
