serial

item

1 type

2 type

1

mass of unit area

there is no minus tolerance

2

variation coefficient of unit area mass≤

         10

3

pull force(N/50mm)

longitudinal

400

720

transverse

4

minimum stress value(N/50mm)

longitudinal

350

620

transverse

5

elongation at max tensile strength%≥

longitudinal

25

35

transverse

6

water enduring performance%≥

          95

7

avulsion intensity/N≥

longitudinal

250

350

transverse

8

soakage performance

there is no not soakage parts

9

bending performance radius/mm

35

there is no crease

10

water containing ratio%≤

2.5

11

dimension stabilization under high temperature≤

longitudinal

2.0

1.5