Pfaff 362-261 Owner's Manual - Page 15

Types of Fabrics Mercerized Cotton Fine Fabrics 80 such as georgette, chiffon, batiste, to voile, lawn, silk. 100 Silk 0 to 000 twist Needle Size 60 or 70 Lightweight Fabrics such as dress silks and cottons, sheer woolens, shirting, draperies. 70 to 80 A& B twist 80 Medium Fabrics 50 such as lightweight woolens, to madras, muslin, brocades, heavy silks and rayon, gabardine. 70 B&C twist 90 Heavy Fabrics such as coating, denim, corduroy, slipcover fabrics, bed tickings, lightweight canvas. 40 to 50 C& D twist 100 Very Heavy Fabrics such as heavy tickings, canvas, overcoating, sailcloth, uphoistery. Synthetics, Rayon, Acetate including nylon, orIon, dacron, plastics, etc. 24 to 40 E twist 90 t 110 Determined by weight of fabric 40 to 50 Determined bythreadsize 60 to 80 Recommended Needle and Thread Sizes The appearance of the finished seam is dependent on the correct relationship between needle, thread and fabric. Select the proper thread sizes and needles from this chart. The same size threads should be used in the needle and on the bobbin. Some experienced seamstresses prefer a somewhat thinner bobbin thread. However, the bobbin thread never should be thicker than the needle thread. 14 - -