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  • Filament hydrolyzed polyester WSPET

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Filament hydrolyzed polyester WSPET

Filament polvester hydrolysate is a kind of polyester water-based slurry which was successfully developed by our company in 2011.It uses the online slurry processes such as light, DTY, DTY polyester FDY. Compared with traditional acrylic size, it has the advantages of low dosage(60%). strong holding force, low cost and biodegradation. As it accords with the relevant national environmental protection laws and regulations, it is a highly promoted product.At present, the product has already replaced the traditional acrylic size in the field of filament sizing.

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±0.025

2

Carboxyl end groups

mol/t

≤20

≤20

3

Color value

L


≥70

≥60

b


M2±2

M2±3

4

Solubility

m(minutes)

M3±3

M3±5

5

Water resistance

H(hour)

≥48

≥36

5

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=0.420 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 , which ranges from 20 to 50 minutes according to different uses.


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