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  • Staple Fiber Hydrolyzed Polyester chips WSPET

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Staple Fiber Hydrolyzed Polyester chips WSPET


Staple fiber hydrolyzed polyester is a kind of polyester water-based slurry which was successfully developed by our company in 2006. It’s used in the sizing process of cotton, polyester-cotton, and polyester. Compared with traditional PVA, it has the characteristics of low dosage (1/4), strong holding force, fast desizing 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 PVA in the field of staple fiber 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=0.320 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 6 to 11 minutes according to different uses.


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