US 12,441,534 B2
Moisture-permeable, microporous luxury food packaging material made of nonwoven fabric
Mirko Bauer, Chemnitz (DE); Brandon Ratcliffe, Newton, NC (US); and Jan Maidorn, Bayreuth (DE)
Assigned to TENOWO GMBH, Hof (DE)
Appl. No. 18/015,556
Filed by TENOWO GMBH, Hof (DE)
PCT Filed Jul. 27, 2021, PCT No. PCT/EP2021/070960
§ 371(c)(1), (2) Date Jan. 11, 2023,
PCT Pub. No. WO2022/023318, PCT Pub. Date Feb. 3, 2022.
Claims priority of application No. 102020120138.9 (DE), filed on Jul. 30, 2020; and application No. 102020123688.3 (DE), filed on Sep. 11, 2020.
Prior Publication US 2023/0249899 A1, Aug. 10, 2023
Int. Cl. B65D 85/804 (2006.01); D04H 1/64 (2012.01); D04H 1/70 (2012.01)
CPC B65D 85/8043 (2013.01) [D04H 1/64 (2013.01); D04H 1/70 (2013.01); D10B 2505/10 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A moisture-permeable, microporous luxury food packaging material made of non-woven fabric, consisting of a carded web of staple fibres and at least one thermoplastic binder,
characterized in that
the non-woven fabric has a uniformly distributed perforation in the form of a plurality of holes, wherein the holes have equivalent diameters and at least 99% of the equivalent diameters of the holes have a fluctuation around a median value of the equivalent diameters of the holes which is in the range of +/−30% of the median value.