Air filter and air cleaner using high density filter paper and vehicle using the same
AssigneesHyundai Motor Company, Kia Motors Corporation, Korea Filtration Technologies Co., Ltd.
InventorsTae-Min Yun, Chul-Kyu Kwack, Young-Hae Kim, Kyung-Ho Hwang
Life of this patent
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Abstract
Disclosed is an air filter using high density filter paper. The filter paper may include a thermally bonded non-woven fabric filter paper 10 having air permeability to filter foreign materials of passed polluted air and change the polluted air to fresh air. The non-woven fabric filter paper includes wrinkled portions 10-1 and 10-N that are folded at a predetermined interval. A thickness of the wrinkle portions 10-1 and 10-N are provided with dense layers 15 and 17 comprising a first polyethylene terephthalate (PET) fiber 20-2 that can shrink by heat and a second polyethylene terephthalate (PET) fiber 20-1 that deforms upon by heat treatment.
Claims18
An air filter, comprising:
- a non-woven fabric filter paper configured to have air permeability and filter a foreign material of polluted air passing the air filter,
- wherein the non-woven fabric filter paper comprises a wrinkle portion folded at a predetermined interval and the wrinkle portion comprises a dense layer comprising a first polyethylene terephthalate (PET) fiber and a second polyethylene terephthalate (PET) fiber,
- wherein, upon heat treatment, the first PET fiber has greater shrinkage than the second PET and the second PET fiber is deformed,
- wherein the dense layer comprises an inner dense layer comprising the second PET fiber and an outer dense layer comprising the first PET fiber in contact with the second PET fiber.
Dependencies are inferred from the claim text.