Title:
PRODUCTION PROCESS OF STICKING-PROOF POLYESTER NEEDLED FELT
Document Type and Number:
WIPO Patent Application WO/2023/151384
Kind Code:
A1
Abstract:
Disclosed is a production process of a sticking-proof polyester needled felt, in which a multi-component hybrid structure is constructed after a polyester needled felt is coated. The process achieves good sticking-proof effects, while employing a low-damage needle punching technique to bring chopped fibers into the thickness direction of a fiber material by means of a felting needle. The process of the sticking-proof polyester needled felt improves the inter-layer strength of a fiber web. The key points of the production process comprise: after a polyester needled felt is coated, a multi-component hybrid structure is constructed, thereby achieving water repellency greater than grade 4, oil repellency greater than grade 3 and good sticking-proof effects. The low-damage needle punching technique is employed to bring the chopped fibers into the thickness direction of the filter material by means of the felting needle, thereby improving the inter-layer strength of the fiber web.
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Inventors:
WANG DAOLONG (CN)
JIN QINYANG (CN)
GE JIUJIN (CN)
ZHAO JINLONG (CN)
JIN QINYANG (CN)
GE JIUJIN (CN)
ZHAO JINLONG (CN)
Application Number:
PCT/CN2022/139458
Publication Date:
August 17, 2023
Filing Date:
December 16, 2022
Export Citation:
Assignee:
ZHEJIANG HEADING ENVIRNMENT TECH CO LTD (CN)
International Classes:
B32B27/00; D04H1/46; D04H1/4382; D04H18/02
Foreign References:
| CN110130116A | 2019-08-16 | |||
| CN114457507A | 2022-05-10 | |||
| CN101906701A | 2010-12-08 | |||
| CN101219306A | 2008-07-16 | |||
| CN103432827A | 2013-12-11 | |||
| CN211917954U | 2020-11-13 | |||
| JP2006176906A | 2006-07-06 |
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