If required, a mild peborate or peroxide bleach should be used under controlled conditions. Casein fibre is generally white and bleaching is not usually necessary.

If singeing is needed a light treatment with a low burner will be sufficient. Good results necessitate through preparation. The main objective of this process are the reduction in short fibre content, removal of trash and neps, production of more straight, parallel and uniform sliverĬasein blend fabrics can be printed very effectively. In actual production, the technological principle of 'more doubling, weight pressure, medium quantum and large gauge' is adopted. Pressure should be larger, and enough gripping force should be proportional to drafting force to be sure to make change speed point of fiber concentrated during drafting and the strands standard is improved. In order to improve strands and reduce hairiness, the drafting in the rear zone for first drawing should be large and the drafting for second drawing should be small - in this way, the extended parallelization of fiber is improved. Since the mass specific resistance of milk protein fiber is large, the static electrical phenomenon is serious, so speed should be reduced properly to avoid fiber winds, rubber-covered rolls and rollers. 8 slivers in each of two lines are adopted in doubling and drafting.

Since the milk protein fibre is bulky and with weaker cohesion force, the extended parallelization of fibre in card sliver is worse, and much hooked fibre exists, the extended parallelization of fibre should be improved as much as possible during drawing to reduce its weight irregularity. The main objective of this process is to improve fiber orientation by aligning the fibers in one direction.

Milk protein fibers textiles