The weft yarns have regular irregularities, and when weaving, the weft yarns are arranged in the thick or fine ones. The appearance of the cloth looks like a piece of floating clouds, so it is called cloud weaving. Most of them are caused by the poor structure of the shuttle, which hinders the movement of the shuttle and opening. (25) Appearance of Padding Mark: When the woven fabric is open-width embossed, the fabric is folded in the warp direction between the two rolls.
The tension on the side yarn during weaving is too large, so it breaks. During storage, due to steam condensation in the factory building, water droplets will fall on the fabric, and the water droplets will have a noticeable discoloration, even if they are dried or restored. It is less colored and lighter in color when dyeing, and shows the existing warp stripes. (19) Yarn Tail Appearance: On the cloth surface or at the cloth edge, there is a yarn tail protruding from the cloth surface. When dyeing in open and cross-rolling, the winding is uneven, and the cloth edge is oxidized. The color absorption is strong, so the dyeing is thicker. During the hot steaming process, the temperature inside the steam box is not uniform.
Therefore, to stabilize the drafting force, we must also do the relevant work. To this end, the drafting force must meet two limit conditions: (1) the upper limit of the drafting force cannot approach or exceed the holding force of the roller jaw under normal pressure; (2) the lower limit of the drafting force should make the drafting force The weakest part of the sliver in the stretch zone maintains proper tension. Adjustment of drafting force In daily production, changes in product variety, raw materials, seasons, and climate often occur. In daily production, there is a large difference in the length and linear density of the batch of raw cotton, or to replace the top roller cotton spinning with a neat sawtooth cotton. ..
The most High Intermingled Yarns Manufacturers used method is to adjust the drafting force or holding force by adjusting the basis weight, drafting multiple, roller interval, rubber roller pressure, etc. For example, when changing special varieties to spin fine special yarns, because fine special yarns require long raw cotton length, low linear density, good uniformity, many natural turns, and good maturity, the draft force of such raw cotton spinning must be large, so ,
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