Page 303 - Industrial Cutting of Textile Materials

290 Glossary

Turntable fabric feeder (turntable) a fabric feeder with a turntable axis that turns a fabric roll
around its vertical axis to perform ‘face up in both directions’ spreading mode.
U
2
Underlay paper paper (40–100 g/m ) spread under a fabric spread to ensure easy transporta-
tion of the ready spread or its parts along the spreading table and eliminate the deformations
of the lowest fabric plies during the transportation.
Unwind (feeding) device a cradle-type or free-bar fabric feeding device that maintains
tension-free fabric feeding from its roll to the single-ply cutter.
V
Vacuum system automated system by help of which the pressure is lowered in a plenum on
the cutting table. The pressure differential between this plenum and the atmosphere applies a
strong and even holddown force to the processed material on the cutting table.
Velcro a fastener for clothes or other items, consisting of two strips of thin plastic sheet, one
covered with tiny loops and the other with tiny flexible hooks, which adhere when pressed
together and can be separated when pulled apart.

W
Wales columns of loops along the lengths of a knitted fabric.
Weft threads widthways in a fabric as woven.
Wheel (pizza) knife nonmotorized freely moving round knife, used in automated single-ply
cutting systems for easy applications.