This material employs no woven needle punching metric system and heating treatment. And it is used in cleaning in smog or industry. It has the following advantages: ventilating, smooth, no distorting, easy clearing. Because it hates water and oil, we can use it for high humid or smeary smog to protect the cleaning bag. Covered with PTFE on surface, it can strengthen the filin to slow the blocking and save energy.  After we designed the material ,we got the following index:   : 

EENWnP500

EENWnP500－F2

EENWnP500－TEX

Treating Technology

Heating

Water or oil resistant

 heating coating

Weight(g/m²)

500

500

500

Density(mm)

1.8

1.8

1.8

Fracture Strength
(n/5×20cm)

warp

＞900

＞900

＞900

weft

＞1100

＞1100

＞1100

Extensity

warp

15－40

15－40

15－40

weft

15－45

15－45

15－45

Ventilation
(cm³/cm².s)

10－25

5－20

2－5

Water proof
(AATCC22testing standards)

－

≥80

≥90

Oil proof
(AATCC118testing standards)

－

≥4

－