US 12,459,284 B2
Unprinted inkjet-printable fillable pouches and methods for producing and printing said pouches
Manfred Schäfer, Cologne (DE); Steffen Ohr, Sursee (CH); Ronny Kunze, Schenkelberg (DE); and Axel Niemöller, Düren (DE)
Assigned to Sihl GmbH, Düren (DE)
Filed by Sihl GmbH, Düren (DE)
Filed on Jun. 13, 2023, as Appl. No. 18/209,164.
Claims priority of application No. 22 179 070 (EP), filed on Jun. 14, 2022.
Prior Publication US 2023/0399158 A1, Dec. 14, 2023
Int. Cl. B41M 5/50 (2006.01); B41M 5/00 (2006.01); B41M 5/52 (2006.01)
CPC B41M 5/504 (2013.01) [B41M 5/0047 (2013.01); B41M 5/506 (2013.01); B41M 5/508 (2013.01); B41M 5/5218 (2013.01); B41M 5/5227 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An unprinted inkjet-printable fillable pouch made of an unprinted inkjet-printable film comprising:
(a) a multilayer polymer film comprising a base layer (a1) and a sealing layer (a2), which is the inner layer of the pouch; and
(b) at least one ink-receiving layer as the outer layer deposited on the multilayer polymer film (a) from an aqueous coating composition comprising:
(b1) a polymeric binder;
(b2) fine inorganic particles having a median particle size (Dv50) of from 50 to 300 nm, as determined by laser diffraction according to ISO 13320:2020-01; and
(b3) coarse inorganic and/or organic particles having a median particle size (Dv50) of from 5 to 14 μm, as determined by laser diffraction according to ISO 13320:2020-01,
wherein the unprinted inkjet-printable film has an average surface roughness Rz of from 3.0 to 12.0 μm, as determined on the surface of the ink-receiving layer (b) according to DIN EN ISO 4287:2010-07 with a sampling length ln of 4.0 mm and a single sampling length lr of 0.8 mm as defined in DIN EN ISO 4288:1998-04 with a 2 μm probe tip and an aperiodic profile setting.