Sewing Type 14 and Type 16 Tyvek®:
The guide below will help you set up your machines in order to get the best results for your application.
We also operate a full service pattern-making and sewing facility so, should you want to, we can quote for making up your final items for you. Spenic Sewing Services
Use up to 12 stitches/inch (4.7 stitches/cm), however, 6-8 stitches/inch (2.4- 3.1 stitches/cm) provide the highest seam strength (greatest resistance to postage stamp tear).
Use a fine-tooth feed dog – 12 to 21 teeth/inch (4.7-8.3 teeth/cm)
Decrease presser-foot tension until the sheet just feeds through the machine without slipping. About 10 lb. (4.5 kg) force should be sufficient.
Decrease bobbin tension until the bobbin just slips down the thread: 3 oz. (85g)
Wind bobbin with thread tension set so that the thread just slips through the disc: 2 oz. (57g)
After setting bobbin tension, adjust the needle tension to produce a balanced stitch.
Conventional threads of cotton/synthetic or 100% polyester may be used. Spun-filament polyester is stronger than cotton thread and is preferred for flame resistant considerations.