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Wet non-woven fabric for filter, filter medium for filter, and filter

A technology of wet non-woven fabrics and filters, which is applied in the direction of membrane filters, filtration separation, and dispersed particle filtration, etc. It can solve the problems of difficult filter reuse and foreign matter cannot be easily removed, and achieves easy cleaning and simple removal. Effect

Pending Publication Date: 2020-11-20
TOYOBO MC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since foreign substances cannot be easily removed, the reuse of filters is in a difficult situation

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Wet non-woven fabric for filter, filter medium for filter, and filter
  • Wet non-woven fabric for filter, filter medium for filter, and filter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] Vinylon fiber (17dtex, average fiber length 12mm, average fiber diameter 40μm), vinylon fiber (7dtex, average fiber length 10mm, average fiber diameter 25μm), vinylon fiber (2.2dtex, average fiber length 6mm, average fiber diameter 15μm) polyester fiber (0.6dtex, average fiber length 5mm, average fiber diameter 8μm), polyester fiber (2.2dtex, average fiber length 5mm, average fiber diameter 15μm), PVA fiber (1.1dtex, average fiber length 3mm, average The fiber diameter is 10 μm) mixed with a weight ratio of 26:31.25:5.25:11.25:11.25:15, and dispersed in water with a pulper to prepare a stock solution for wet papermaking.

[0071] The stock solution for wet papermaking was made into a wet web (wet web) by short-wire papermaking method, then lightly squeezed with a press roll and dried with a drying drum at 140°C to obtain a basis weight 40g / m 2 , The wet-laid nonwoven fabric of Example 1 with a thickness of 0.3 mm.

[0072] Then, on the downstream side of the obtained ...

Embodiment 2

[0074] Vinylon fiber (7dtex, average fiber length 10mm, average fiber diameter 25μm), vinylon fiber (2.2dtex, average fiber length 6mm, average fiber diameter 15μm), polyester fiber (0.6dtex, average fiber length 5mm, average fiber Diameter 8μm), polyester fiber (2.2dtex, average fiber length 5mm, average fiber diameter 15μm), PVA fiber (1.1dtex, average fiber length 3mm, average fiber diameter 10μm) with a weight of 51:7.6:16.2:16.2:9 Then, the polyacrylate was weighed so as to be 0.05% relative to the weight of the injected fibers, and dispersed in water with a pulper to prepare a stock solution for wet papermaking.

[0075] The stock solution for wet papermaking was made into a wet wire by the short wire papermaking method, then lightly squeezed with a press roll and dried with a drying drum at 140°C to obtain a basis weight of 30g / m 2 , The wet-laid nonwoven fabric of Example 2 with a thickness of 0.2 mm.

[0076] Then, except having used the wet-laid nonwoven fabric of E...

Embodiment 3

[0078] Vinylon fiber (7dtex, average fiber length 10mm, average fiber diameter 25μm), vinylon fiber (2.2dtex, average fiber length 6mm, average fiber diameter 15μm) polyester fiber (0.6dtex, average fiber length 5mm, average fiber diameter 8μm), polyester fiber (2.2dtex, average fiber length 5mm, average fiber diameter 15μm), PVA fiber (1.1dtex, average fiber length 3mm, average fiber diameter 10μm) at a weight ratio of 45:7.6:16.2:16.2:15 After mixing and weaving, the polyacrylate was weighed so as to be 0.05% with respect to the weight of the fibers charged, and dispersed in water with a pulper to prepare a stock solution for wet papermaking.

[0079] The stock solution for wet papermaking was made into a wet wire by the short wire papermaking method, then lightly squeezed with a press roll and dried with a drying drum at 140°C to obtain a basis weight of 30g / m 2 , The wet-laid nonwoven fabric of Example 3 with a thickness of 0.2 mm.

[0080] Then, except having used the we...

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Abstract

A wet non-woven fabric for a filter according to the present invention is formed of vinylon, polyester, and polyvinyl alcohol and contains 10 to 20% of the polyvinyl alcohol by weight, and the surfaceroughness (SMD) of a surface of the wet non-woven fabric, the surface being disposed at the upstream side in ventilation, is 2.7 [mu]m or less.

Description

technical field [0001] The present invention relates to a wet-laid nonwoven fabric for a filter, a filter medium for a filter, and a filter that are excellent in removing adhering foreign matter. Background technique [0002] In recent years, in filters for air conditioners, air conditioners, and automobiles, the demand for high performance and low cost of filter materials has increased, and many filters that have both dust removal performance and deodorization performance have been carried out. Research on filter media for appliances (for example, refer to Patent Documents 1 to 3). There is also an increasing demand for filters that can easily remove adhering foreign substances as further functionalization. However, since the foreign matter cannot be easily removed, the reuse of the filter is in a difficult situation. Regarding recycling of filters, there is, for example, a dust removal method using a suction nozzle (Patent Document 4). [0003] prior art literature [...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/16D04H1/407D04H1/4309D04H1/435D21H13/10
CPCD04H1/407D04H1/435D04H1/4309B01D39/1623B01D2239/1233B01D2239/1291B01D2239/1241B01D2239/0407B01D2239/0457B01D2239/0668B01D2239/083B01D2239/1225D21H13/16D21H13/24D21H27/08D04H1/732B01D2239/0627B01D2239/0636B01D2239/0478B01D2239/0464B01D2257/404B01D2257/302B01D2257/70B32B2264/50B01D46/0035B01D46/0036B01D53/04B01D2239/0618B01D2239/065B32B5/022B32B5/26B32B2250/02B32B2250/20B32B2262/0223B32B2262/0276B32B2270/00B32B2307/724D04H3/16D10B2505/04D21H17/37
Inventor 高见健人日高裕辅
Owner TOYOBO MC CORP
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