Heavy metal-free Water Soluble Polyester Chips&Slurry
| Item | Unit | Index |
| Appearance | Granular or powder solid | |
| Color | White | |
| Glass transition temperature | ℃ | ≥42℃ |
| Intrinsic viscosity | dL/g | 0.380dl±0.020 |
| AV | KOHmg/g | ＜6 |
| H2O | % | ＜1% |
| Water solubility | Easily soluble in hot water above 80 ℃ | |
| Smell | Non toxic and tasteless |
Formula: On the basis of the existing formula, the total solid volume remains unchanged, and 1kg water-soluble polyester slurry is used to replace 2kg PVA. The insufficient part is supplemented with starch or modified starch, and an appropriate amount of oil agent and antistatic agent is added to ensure the approximate sizing rate (the actual sizing rate will be slightly lower).
Sizing: put proper amount of water in the sizing bucket, turn on the mixing, first put in starch, then put in water-soluble polyester slurry, stir fully, then raise the temperature to above 95 ℃, then open the small air valve to boil for more than 30 minutes, then add oil, antistatic agent or liquid slurry, boil and mix well, and then use it after setting the volume and viscosity.
Use under the guidance of professional technicians.
In the slurry formula, the auxiliary slurry containing bivalent metals or heavy metal salts should be avoided as far as possible, and the water with too high hardness should also be avoided as far as possible. The water with too high hardness needs to be softened before use. Do not use NaOH as the decomposing agent during slurry mixing. The PH value of the slurry should be between 6 and 7.
