How to Choose Water Soluble Resin for Polyester Yarn Sizing？

In the competitive textile manufacturing industry, selecting the best water-soluble resin for polyester yarn sizing directly impacts production efficiency, fabric quality, and environmental compliance.

 How to optimize polyester yarn sizing with eco-friendly water-soluble textile chemicals has become a strategic priority. Here are key essential criteria for choosing high-performance resins that ensure smooth weaving and easy desizing.

Why Water-Soluble Resins Matter in Polyester Yarn Processing？

Polyester’s hydrophobic nature creates unique challenges in sizing. Unlike natural fibers, polyester requires resins that:

  • Form uniform adhesive films on smooth fiber surfaces ✅
  • Withstand high-speed loom friction (200-300 RPM) ⚡
  • Enable complete removal during eco-friendly desizing 🌱
Key Technical Parameters for Selecting Resins

 1. Solubility Profile & Temperature Sensitivity

  Opt for resins with controlled dissolution rates (25°C to 95°C) to match your desizing method.

  Our thermo-responsive PVA-based resins achieve:

  • 98.7% solubility in cold water (25°C) ❄️
  • <2% residual ash after desizing 🔥

 2. Film-Forming Capability

The ideal resin should create flexible films with:

  • Tensile strength: 25-40 MPa 📏
  • Elongation at break: 150-200% ↔️
  • <0.3% hairiness reduction 🧵

3. Compatibility with Additives

Ensure seamless blending with:

  • Lubricants (5-8% silicone emulsions)
  • Anti-static agents (quaternary ammonium compounds) ⚡
  • Antimicrobial preservatives (for tropical climates) 🌴

Case Study: Vietnamese Textile Mill Success
A Da Nang-based manufacturer reduced sizing costs by 23% and energy use by 18% after switching to our low-temperature soluble resin (LTS-5X):

65°C dissolution temperature vs traditional 85°C 🔥→🌡️

15% higher loom efficiency 📈

Achieved GOTS 7.0 certification within 6 months 🌿

FAQ: Top Buyer Concerns Addressed

Q: How does humidity affect resin performance?

A: Our moisture-resistant variants (MR Series) maintain <3% viscosity change at 85% RH – critical for tropical climates.

Q: Can we customize viscosity for spray sizing?

A: Yes, we offer 50-20,000 cPs adjustable viscosity with shear-thinning technology.

Next-Step Action Plan

Pls contact us to get your  customsized resin samples optimized for your loom type ✉️

Whatsapp/wechat: +8618157370385

Email: bella@kelongresin.com