Water Soluble Polyester Chip for Yarn Spinning, Warp Sizing, and Fabric Coating

Textile Grade Water-based Polyester chip as Textile Chemicals and Spinning Raw Material

Water-soluble polyester chip is entirely water-based polyester resin with high stability and can be 100% dissolved in water without alcohol or other solvents. This thermoplastic polymeric material is made from terephthalic acid (PTA) with mono ethylene glycol (MEG).

Application:

1. Yarn Spinning
Because of the excellent water solubility, many manufacturers use it to produce value-added specialty fibers, like sea-island fibers, porous fibers, and highly hygroscopic fibers.
2. Fabric Coating
It can be used for finishing fabrics to add the feel, stiffness, and good printing surface.
3. Warp Yarn Sizing
Because of the similar structure with Terylene, WSP resin is mainly used for Warp Yarn Sizing.
It can completely replace modified starch, PVA, acrylics, or other binders during the sizing process of polyester filament, like pure polyester filaments(FDY, DTY)
And it can be used in combination with starch and wax for sizing polyester staple fiber, organic cotton yarn, polyester/cotton blend yarn,  polyester/viscose compact yarn. In this condition, it can replace PVA. The replacing ratio between PVA to resin is from 1:2 to 1:5.

Characteristics (As Warp Yarn Sizing Agent):

Non-toxic and odorless, fully replacing PVA, Acrylics, CMC & other binders
Excellent adhesion performance, no hairiness problem
Strong coating film and high weaving efficiency, no yarn breakage
Easy desizing process
Eco-Friendly, no extra load for a water-treatment plant
Parameters Table
Product Model: WSP-010 (specialty resin for filament, like FDY, DTY)

No. Property Standard Value Technical Data
1 Intrinsic Viscosity M0 ± 0.02 0.401 dl/g
2  

Color Value

L ≥45 49.23
B M1 ± 2 0.78
A -1.24
3 Solubility M2 ± 3 27.6 min
4 Moisture Content ≤1 0.78%
Remark:
M0 is the central value for IV. It should be 0.41dl/g, when there is no special requirement.
M1 is the central value for color value. It should be 0, when there is no special requirement.
M2 is the central value for solubility. It should be 25, when there is no special requirement.
The solvent for IV test is 50% phenol and 50% tetrachloroethane under the temperature of 25℃.
Color value test is based on the Hunter method.
All the above items are tested according to GB/T14190-93.

Product Model: WSP-020 (specialty resin for PSF, cotton and p/c blend)

No. Property Standard Value Technical Data
1 Intrinsic Viscosity M0 ± 0.015 0.31 dl/g
2  Diethylene Glycol 8.52
3  

Color Value

L ≥45 49.98
B M1 ± 2 1.72
A -1.24
4 Solubility M2 ± 2 9.5min
Remark:
M0 is the central value for IV. It should be 0.30dl, when there is no special requirement.
M1 is the central value for color value. It should be 0, when there is no special requirement.
M2 is the central value for solubility. It should be 9, when there is no special requirement.
The solvent for IV test is 50% phenol and 50% tetrachloroethane under the temperature of 25℃.
Color value test is based on Hunter method. DEG is tested by Japan Shimazu chromatograph.
All the above items are tested according to GB/T14190-93.

*The specialty products are offered in various specs. Recipes are available upon request.

Here is the process of making resin solution:

1 Add water in tank-start stirring

2 Heating the water-add resin gradually when temperature reach 80℃

3 Add some anti-foaming agent during mixing until no foam

4 Cook the resin for 1.5 hours at 95℃

5 Cool down the solution and stir 20-30 minutes under 50-60℃ until fully dissolved

6 Filter solution by 200-mesh filter net-use it in machine

Note:

1. About anti-static agents, you can add some according to the real situation.

2. The percentage of the solution is 16.66%. (1000Kg of water-soluble polyester resin and 5000kg of water and also 6 kg anti-foaming agent.

3. During the process, fully stirring is continuous. And the duration of full dissolving is 27.5mins.

4. The Water to Cook Solution:
We suggest De Mineral (DM) Water or Distilled Water or Reverse Osmosis (RO) water.
If water is good, 50% problem is eliminated in the cooking process. We strongly recommend the manufacturers to use the water we recommend above. Because the tape water has high TDS and is solid, which will make the resin undissolved. Harness in normal water is responsible for poor solubility. So soft water with a hardness of 10ppm is the best option. And the total TDS should not be higher than 50ppm.