EP 4124200 A1 20230201 - FILTER MATERIAL FOR SMOKING ARTICLES HAVING IMPROVED EXPANSION BEHAVIOUR
Title (en)
FILTER MATERIAL FOR SMOKING ARTICLES HAVING IMPROVED EXPANSION BEHAVIOUR
Title (de)
FILTERMATERIAL FÜR RAUCHARTIKEL MIT VERBESSERTEM DEHNUNGSVERHALTEN
Title (fr)
MATÉRIAU FILTRANT POUR ARTICLES À FUMER PRÉSENTANT UN COMPORTEMENT D'ALLONGEMENT AMÉLIORÉ
Publication
Application
Priority
- DE 102021115450 A 20210615
- EP 2022057374 W 20220321
Abstract (en)
[origin: WO2022263030A1] The invention relates to a filter material for producing a segment for a smoking article, wherein the filter material is in the form of a web and contains at least 50% and at most 100% cellulose fibres, in each case based on the mass of the filter material, wherein the filter material has a weight per unit area of at least 15 g/m² and at most 60 g/m², wherein the thickness of a layer of the filter material, measured according to ISO 534:2011, is at least 25 µm and at most 1000 µm, wherein the filter material has a machine direction and a transverse direction orthogonal thereto in the plane of the web of the filter material, and wherein the filter material has a characteristic plastic deformability in the transverse direction which is characterised in that, in a tensile test in the transverse direction according to ISO 1924-2:2008, the non-linear portion of the deformation energy absorbed by the filter material up to half the elongation at break is at least 10% and at most 50% of the total deformation energy absorbed by the filter material up to half the elongation at break.
IPC 8 full level
A24D 3/10 (2006.01)
CPC (source: EP KR)
A24D 1/02 (2013.01 - KR); A24D 1/20 (2020.01 - KR); A24D 3/0204 (2013.01 - EP); A24D 3/0212 (2013.01 - EP KR); A24D 3/0229 (2013.01 - EP); A24D 3/063 (2013.01 - KR); A24D 3/10 (2013.01 - EP KR); A24D 3/14 (2013.01 - KR); A24D 3/17 (2020.01 - KR); D04H 1/425 (2013.01 - EP KR); D04H 1/4258 (2013.01 - EP KR); D04H 1/492 (2013.01 - EP KR); D04H 1/732 (2013.01 - EP KR); A24D 1/20 (2020.01 - EP); A24D 3/14 (2013.01 - EP); A24D 3/16 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
DE 102021115450 A1 20221215; CN 117460429 A 20240126; EP 4124200 A1 20230201; KR 20240022530 A 20240220; WO 2022263030 A1 20221222
DOCDB simple family (application)
DE 102021115450 A 20210615; CN 202280040985 A 20220321; EP 2022057374 W 20220321; EP 22718082 A 20220321; KR 20247000178 A 20220321