Polyester Needle Felt

Product Description

Polyester _ fine denier fiber yarn, with _ equipment to produce polyester (polyester) fiber needle punched filter felt, which can uniformly and quantitatively mix a variety of fibers, and then use multiple mixed cotton openers and carding units to facilitate the difference between fiber webs Fiber interlayer composite, gradient transformation. This product has the advantages of high porosity, good air permeability, high dust collection efficiency and long service life, which are unique to ordinary felt filter cloth. Because of its moderate temperature resistance level, it can reach 150 ℃ in an instant, and it has moderate acid and alkali resistance. In addition to its characteristics and very good wear resistance, it is a variety used in felt filter materials with a large amount of use.

Material		Polyester / polyester staple fiber base fabric				Polyester / polyester filament fabric
Weight（g/m2）		450	500	550	600	400	450	500	550	600
thickness（mm）		1.6	1.8	2.0	2.2	1.4	1.55	1.75	1.95	2.15
Air permeability（m3/m2/min）		18	15	13	12	21	18	15	13	12
Breaking strength（N/5×20cm）	vertical	>750	>750	>800	>800	>1000	>1000	>1100	>1100	>1150
	Weft direction	>1150	>1200	>1300	>1400	>1250	>1300	>1350	>1350	>1400
Elongation at break （%）	vertical	<35	<35	<35	<35	<25	<25	<25	<25	<25
	Weft direction	<55	<55	<55	<55	<45	<45	<45	<45	<45
Continuous working temperature（℃）		≤130	≤130	≤130	≤130	≤130	≤130	≤130	≤130	≤130
Instant use temperature（℃）		150	150	150	150	150	150	150	150	150
Acid resistance		good				good
Alkali resistance		middle				middle
Abrasion resistance		good				good
Hydrolytic stability		middle				middle
Post-processing		Singeing / calendering / heat setting / coating