Pfaff creative 1371 Owner's Manual - Page 115
stitch, length, thread
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A a 100 I b Changing the buttonhole stitch length With the stitch length key (106), the butterl seams can be set more densely or loosely Buttonholes with gimp thread In the case of elastic materials, it is possible that button holes extend. Therefore, the buttonhole should be strengthened with interlining mat In order to retain the shape of the button-hole, B gimp thread if possible. Place the gimp thread o' the back ridge A", pull taut and jam it into ti. ridge B" to the left and right (Fig. 1). (Pull runit' fully forwards). The buttonhole sequence is the same as with gimp thread, see page 99. After completing II buttonhole pull on both thread ends of the gin thread until the loop is corvered up by the bar. TI. is where the button is located later. Pull the gin threads through to the underside with a needi (Fig. 2), secure them and trim them. Correction of buttonhole 2 If a buttonhole does not turn out properly dunn programming, it can be cleared and programme again by pressing the pattern start key. As you know, it is difficult to sew buttonholes ii collar stands, waistband strips etc. In such cases, the buttonhole length should be drawn in previouslt, and the first seam, bartack and second seam con trolled by hand (Fig. 3) Sewing foot No. 2 can also be used for this work. (Sewing procedure as described on page 99). C Single buttonhole A garment may consist of different numbers of fabric plies, e.g. the buttonhole strip may consist of three plies and the collar stand of six * owing to the folded seam edge. In this case it is necessary to pro gramme the computerfor varying numbers of fabric plies in order to maintain the same buttonhole ) length as on the 3-ply buttonhole strip. 3 Changing the buttonhole width For every fabric type, the corresponding button hole width can be determined up to 5.5 mm. For light materials select a wide buttonhole (Fig. 4 a) and a narrow one for difficult materials (Fig. 4 b). With the stitch width key (107), you determine the required buttonhole width. The length of the cut changes itself automatically (Figs. 3, 4. 5. 6, page 4 63). A buttonhole width of 4.5 mm is now stored.