Textiles de la Dunière
SMART
throwing
échantillon 2
échantillon 3

Preamble

The choice of raw materials is primordial in making any type of quality, high-performance product, so TLD buys its yarn directly from the world’s best spinners.

Making thrown yarns, in 3 stages:

1. Cop winding

Cop winding

Consists in placing the raw materials on supports that can be used by the throwing machines.

2. Throwing

throwing

This term covers three types of transformation by twisting:

  • twisting a single ply; experts call this double twisting,
  • association of 2 or 3 plies by covering (one ply covers another)
  • association of 2 or 3 plies by cabling (the two plies are twisted together).

3. Treatment

throwing treatment

Treatment in an autoclave (temperature and humidity) reduces curling in the thrown yarn and makes the yarn’s characteristics permanent.

What is throwing?

The purpose of the twisting is to link the filaments in the strand and form a ‘helix’ to improve the quality of the yarn:

  • resistance to abrasion, needed for weaving,
  • resistance to traction: the more a yarn is twisted, the greater its resistance.

Twisting can also change the look and feel of a yarn. A highly twisted yarn is crepe-like to the touch and matt in appearance.

Twisting is defined by its direction (specialists call it S or Z) and intensity (expressed in number of twists per metre).
Yarn can have 100 to 2500 twists / metre.

TLD only throws continuous filaments:
Otherwise throwing fibres (cotton, for example) in the same workshop could result in pollution. If cotton fibre were deposited on other, synthetic yarns it would bring down the quality of our production.
Optimal temperature and humidity must also be maintained in workshops in order to guarantee the quality our customers demand.