Weaving Auxilliary
Synthetic polymers applied to the warp yarns provide a protective coating that reduces friction and breakage during the weaving process. Polyacrylate sizing is often used for high speed looms and fine yarns where natural starch is not effective. This coating increases the tensile strength and smoothness of the yarn.
It must be applied evenly to ensure consistent performance across the entire width of the loom.
Polymer Adhesion
Film forming properties of the chemical allow it to stick firmly to both natural and synthetic fibers. When using polyacrylate sizing, the mill must control the drying temperature to prevent the coating from becoming too brittle. A flexible film protects the yarn as it passes through the reeds and heddles.
This prevents the shedding of fiber fragments and the formation of fluff.
Removal Requirement
Post weaving treatment must completely strip the polymer from the fabric to allow for even dyeing. Unlike starch, polyacrylate sizing is typically removed using a mild alkaline wash rather than enzymes. This step is essential because any remaining size will act as a barrier to dyes and finishes.
The desizing process must be carefully monitored to ensure the cloth is clean.
Loom Efficiency
Higher production speeds are possible when the warp yarns are protected by a high performance coating. The use of polyacrylate sizing reduces the number of machine stops caused by yarn failures. This leads to a more uniform fabric with fewer defects.
It is a cost effective solution for modern textile manufacturing.
