Title:
SPUN-BONDED NONWOVEN FABRIC FOR FILTER, FILTER MEDIUM FOR POWDER COATING FILTER, AND POWDER COATING FILTER
Document Type and Number:
Japanese Patent JP2021098195
Kind Code:
A
Abstract:
To provide spun-bonded nonwoven fabric for a filter which has excellent balance between powder dust collecting performance and permeability, has high rigidity and is excellent in fluff resistance.SOLUTION: Spun-bonded nonwoven fabric for a filter is composed of a thermoplastic continuous filament composed of a high melting point component and a low melting component, and is partially fused. Bending resistance in an MD direction is 15 mN or more and 30 mN or less. A ratio of reflected light average luminance (S1) of a fused part in a cross section represented by the following formula (1) to average luminance (S2) of a non-fused part is 0.02 or more and less than 1.0, and a ventilation amount (q) (cm3/(cm2 sec))/(g/m2) per unit basis weight is 0.05 or more and 0.5 or less.SELECTED DRAWING: None
Inventors:
KITAMURA KOJI
YOSHIDA JUN
YAMANO CHINATSU
YOSHIDA JUN
YAMANO CHINATSU
Application Number:
JP2020214124A
Publication Date:
July 01, 2021
Filing Date:
December 23, 2020
Export Citation:
Assignee:
TORAY INDUSTRIES
International Classes:
B01D39/16; D04H3/147; D04H3/16
Attorney, Agent or Firm:
Sakai International Patent Office
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