Filament Yarn Sizing

Versatile and efficient acrylic copolymers for filament yarn sizing

Synthomer is the market-leader in filament yarn sizing. Our products include polyacrylic acid homopolymers of various molecular weights, acrylate ester copolymers, vinyl copolymers, and polyester resins for nylon, polyester and acetate filament yarns. Synthomer's polymers protect the yarn bundle through the harsh mechanical actions of slashing and weaving. As a result, loom speeds can be increased along with weaving efficiency. Also, the greige fabric is easily scoured.

Benefits of filament sizing

  • Efficient bonding of yarn filaments 
  • Less end breakage during slashing
  • Greater weaving efficiency
  • Ease of desizing (scouring)
  • Fewer fabric defects

Recommended Products

Tradename Chemistry Description
PERMALOID™ 180 CL OTH PERMALOID 180 CL is an easily dispersible ammoniacal solution of a vinyl acetate copolymer for sizing acetate and polyester yarns. PERMALOID 180 CL penetrates and coats the yarn during weaving, does not dust on loom, and provides an easy wet and dry split on the slasher.As the yarn is dried, the PERMALOID 180 CL forms an insoluble coating which remains on the yarn through weaving until the fabric is desized in a light alkaline solution. 
SYNTHESIZE™ TFM OTH Synthesize TFM is a stable aqueous dispersion of a high molecular weight linear polyester resin for use as a textile warp size, to size filament polyester yarns or to act as a binder with starch and PVA to size polyester/cotton blends

Contact our technical specialists for a no-obligation discussion of how Synthomer’s binders can help improve your footwear components.