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  • Water-soluble Polyester Chips WSPET

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Water-soluble Polyester Chips WSPET

The product is 100% water-soluble polyester in the form of bright white or yellowish particles or powders.with strong adhesion,good water solubility, low viscosity, easy desizing, and good film formation.


The main purpose:

It is good adhesive. It is mainly used as the sizing material of polyester filament, short yarn. polyester-cotton blended yarn,cigarette holder and coating. It is an ideal material to replace polyacrylic acid and PVA,the mainstream variety of polyester sizing materials.


Message

Product Features：


Product introduction as above

Main quality index：

Quality index of WSPET


Serial number

Item

Unit

Superior Product

First-grade Product

1

Intrinsic viscosity

dl/g

M1±0.015

M1±0.015

2

Carboxyl end groups

mol/t

≤20

≤20

3

Color value

L


≥70

≥60

b


M2±2

M2±2

4

Solubility

m (minutes)

M3±3

M3±5

5

Water resistance

h (hour)

≥48

≥36

6

Desizing Index

m (minutes)

80±20

80±40

7

Moisture

%

≤1

≤1


Note：


1.M1 in the table is the median value of intrinsic viscosity. in general M1= 0.300 - 0.450 or it should be determined by both buyer and seller.


2.M2 in the table is the median value of color b. in general M2=2 or it should be determined by both buyer and seller.


3.M3 in the table is the median value of solubility. M3  can be chosen between 6-50 minutes,or it should be determined by both buyer and seller.

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