A tabular negative pressure sheet 3 includes a baseplate 4, a sheet 5 with conduction grooves, a nonwoven cloth lamination outer layer 6, and a surface layer member 7. The baseplate 4 is a member as a base of the tabular negative pressure sheet 3. In addition, the sheet 5 with conduction grooves is a member disposed on the outer side of the baseplate 4, and on the surface thereof, negative pressure conduction grooves 8 are formed. In the tabular negative pressure sheet 3, negative pressure conduction grooves 8 are formed in a direction substantially perpendicular to a direction in which a strip 2 is threaded so that a negative pressure is generated as far as an end portion of the tabular negative pressure sheet 3.

The present invention relates to a device for transforming a metal slab from coil configuration into sheet configuration, subsequently comprising: a rotatable coil holder (21); at least one align unit; and a separator; wherein the rotatable coil holder, the at least one align unit and the separator are placed in line wherein the rotatable coil holder is provided with at least one air knife (22) that directs an air flow onto the width of the metal slab. The present invention also relates to a method for transforming a metal slab from coil configuration into sheet configuration, comprising the method steps: A) placing a metal slab coil on a rotatable coil holder; B) rotating the metal slab coil and unwinding the coil; C) feeding the unwound metal slab through at least one at align unit; and D) separating individual metal slab sheets wherein an air knife is directs an air flow onto the width of the metal slab before the unwound metal slab is fed through an align unit.