Solvent-free composite film winding problem

Solvent-free composite film winding must be neat, or at the edge of the winding of loose tunnel phenomenon appear easily. For example, small paper core winding set taper winding tension is 10% ( 150毫米) / 15% ( 300毫米) / 20% ( 450毫米) , when composite layer winding neatly, in composite lining when the winding irregular phenomenon; Set switch to big paper core winding, winding tension taper is 10% ( 200毫米) / 30% ( 350毫米) / 40% ( 550mm) , the primary winding and tidy. Taper winding tension set hours, outer ring internal circle will produce larger extrusion, if after the film winding the friction between the inner and outer layer and smaller ( Film too smooth, low friction) , it will appear as shown in figure on the right side of figure of winding crowding out. When setting large taper winding tension, and winding and tidy. The above example, solvent-free composite film winding uniformity is associated with tension parameter setting, and the relationship between smooth agent also has. Can be sure, if, when the winding roller beating, there were 2 PE composite membrane surface is soft, is it easy to roller crushed. Causes of roller beating more, such as paper core deformation ( Elliptical shape) Transverse incision, paper core uneven generate assembly error, membrane volume suddenly obvious thickening and other factors. Naturally, winding tension larger will ease this phenomenon.