In the commercial printing industry, suture is mainly used in two fields, namely binding and printing workshop. The material is usually low carbon steel, galvanized or tinned. Sutures are used for side stitching, book stapling, horse riding stitching, corner stitching, booklet making and inline stitching in press applications.

Stitching Wire:

Stitching Wire has evolved as the industry has changed. Stitching wire is now a highly tuned part of the printing world. Quality of Finish, Size, Cast, Camber, Tensile, Path of Wire, Spool Sizes, and De-spooling Equipment are all major factors in how stitching wire is going to perform in the field. With the continued demand for increased run speeds and overall profit, high quality stitching wire and proper machine setup are a must.

Quality of Finish:

An ideal wire is chrome-like in appearance with special friction reducing additives to resist peeling and flaking while providing a superior workability in all bending and forming applications.

Cast and Camber (Helix):

Commercially produced, stitching wire is not straight. Each spool size has a desired curvature of the wire. The radial or circular curvature is known as “Cast.” Cast is measured as the diameter of a free turn of wire. The axial component is referred to as “Camber.” Camber is measured at the offset in the ends of one turn of freely hanging wire. A large cast and small camber are characteristics of a high quality wire. This allows the wire to go into the stitching head smoother, producing less drag, and will provide fewer dropped stitches. The stitching head will work more efficiently with less energy and maintenance.

Scope of application