Pfaff expression 2026 Owner's Manual page 28

Technical section
The IDT (Integrated Dual Feed)
For sewing any fabric precisely PFAFF provides the
ideal solution: the Integrated Dual Feed, IDT system. As
on industrial machines, the IDT feeds the fabric from
the top and bottom at the same time. The material is fed
precisely. On light fabrics such as silk or rayon the dual
feed prevents puckering of the seam. The even feeding
action also ensures perfect matching of checked and
striped fabrics. The IDT keeps all layers of quilt projects
aligned to prevent stretching of the top layers.
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