| 摘要 |
PURPOSE:To mass-produce at high yield a laminated body, the air permeability, cushioning property, flexibility and the like of non-woven cloth of which are fully made the best use of and at the same time having satisfactorily laminated state, by a method wherein thermally adherent non-woven cloth is heat-bonded onto the surface of material to be laminated on one side under the condition that free heat shrinkage in the direction of the surface is restrained with needle-like projections, which are equipped at proper intervals and distribution density, of a member. CONSTITUTION:Sheet 1 supported by a delivery shaft 13 is fed and conveyed at the predetermined speed. Thermally adherent non-woven cloth 3 is fed and conveyed at nearly the same speed as the conveying speed of the sheet 1 and pierced successively with needle-like projections 17 on a roller 16 side during the process by suspendingly conveying around the roller with roller 16 so as to be carried under the state that the surface of the non-woven cloth contacts with the rear surface of the sheet 1 with the pressing force applied with a pressing roller 18. The non-woven cloth 3 is successively treated by being heat-bonded with the sheet 1, because the rear surface of the sheet 1 generates the bonding property by heating. Though the heating tends to cause the heat shrinkage, the needle-like projections 17 on the peripheral surface of the needled roller 16 forcibly restrains the heat shrinkage in the direction of the surface so as to successively heat-bond the non-woven cloth to the rear surface of the sheet 1 under the state that the original fiber density is held unchanged. |
