Sample packaging with Zwirnerei bag sewing thread.

Products for the packaging industry

Customers around the world value our bag closing threads and filling yarns. Our threads for the packaging industry are characterized by high tensile strength and problem-free use on machines during production. We achieve the ultimated properties through collaboration with well-known producers of sewing and packaging systems.

We produce a unique variety of sewing threads in a wide range of constructions and making-up:

  • Thread thicknesses (yarn count) such as Ne 12/3 (Nm 20/3), Ne 12/4 (Nm 20/4), Ne 12/5 (Nm 20/5), Ne 12/6 (Nm 20/6)
  • Staple fiber yarn and filament yarns made of a wide range of materials such as polyester, polypropylene, viscose or blends

  • Natural white, many standard colors (red, blue, black and yellow) as well as individual colors are available

  • Dry, slightly oiled, oiled or waxed
  • A wide variety of reel sizes: 200 g, 1 kg, 2.5 kg, 4.5 kg, 7.5 kg
  • Food safety declaration from accredited laboratories
  • OEKO-TEX® STANDARD 100 for all our bag sewing threads
  • We offer the appropriate filling threads (filler cords) for sealing sewn seams.


Your ideal thread – made for you

Are you developing a new product and would you like to make use of our experience? Many other industries benefit from the high quality standard of our products. We would be pleased to develop a thread according to your Needs.

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Products for hygiene and medical industry

Our threads for the hygiene and medical industry are manufactured under special hygienically and bacteriologically controlled conditions.

Products for the food industry

We have been producing teabag threads for one and two chamber bags in the food industry sector for more than 30 years.

Values for the future

The majority of our energy requirements are thus covered using renewable and CO²-neutral power from the river Wutach.