APPARATUS FOR CHANGE OF DIRECTION OF LONG SHEET, AND ARTICLE FLOATING APPARATUS

摘要

A direction-changing apparatus (4) comprises a columnar container (1) which has pores (2) and a porous resin layer (3) which covers the pores (2). A compressed air is supplied into the container (1). The air which is diffused from the surface of the resin layer (3) floats a long sheet (6) which is caught by the apparatus (4). The apparatus (4) can generate a stable floating force with a small quantity of the compressed air. The resin layer (3) comprises a laminated structure composed of polytetrafluoroethylene films. The surface of the resin layer (3) is treated with an antistatic agent or a water-repellent/oil-repellent agent. Each of the PTFE films is reinforced with a PTFE woven fabric. The resin layer (3) has a thickness of 0.1 to 20 mm and a ventilation coefficient of 100 to 15000 mL/(cm2·min·MPa). The container (1) is a stainless pipe.