Non-woven filtration material and air cleaner element

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United States of America Patent

PATENT NO 10328370
APP PUB NO 20170173510A1
SERIAL NO

15382948

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Abstract

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Provided is a non-woven filtration material including a multilayer structure having a density gradient. The multilayer structure includes a coarse layer disposed at an upstream side of the non-woven filtration material and a dense layer disposed at a downstream side of the non-woven filtration material. The coarse layer and the dense layer are dry layers. The coarse layer contains 30% to 60% by weight of crimped conjugated fibers and contains 30% to 70% by weight of finer fibers. The crimped conjugated fibers have an average fiber diameter in a range from 15 μm to 45 μm. The finer fibers have an average fiber diameter that is in a range from 5 μm to 20 μm and smaller than the average fiber diameter of the conjugated fibers.

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Patent Owner(s)

Patent OwnerAddress
TIGERS POLYMER CORPORATION4-1 SHINSENRI HIGASHIMACHI 1-CHOUME TOYONAKA-SHI OSAKA 5600082 ?5600082

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Mizuta, Shinsuke Hyogo, JP 3 65
Umemoto, Shota Hyogo, JP 6 0

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