US 12,076,958 B2
Manufacturing process for producing hermetic single-use food containers such as coffee pods, including a creasing step
Nicolas Gres, Echenevex (FR); David Nordqvist, Echichens (CH); and Christophe Sebastien Paul Heydel, Chez-le-Bart (CH)
Assigned to Societe des Produits Nestle S.A., Vevey (CH)
Appl. No. 17/415,038
Filed by SOCIETE DES PRODUITS NESTLE S.A., Vevey (CH)
PCT Filed Dec. 17, 2019, PCT No. PCT/EP2019/085486
§ 371(c)(1), (2) Date Jun. 17, 2021,
PCT Pub. No. WO2020/127147, PCT Pub. Date Jun. 25, 2020.
Claims priority of application No. 18213794 (EP), filed on Dec. 19, 2018.
Prior Publication US 2022/0063227 A1, Mar. 3, 2022
Int. Cl. B31B 50/88 (2017.01); B31B 50/59 (2017.01); B31F 1/08 (2006.01); B65B 29/02 (2006.01); B31B 120/10 (2017.01); B31B 120/70 (2017.01)
CPC B31B 50/88 (2017.08) [B31B 50/592 (2018.05); B31F 1/08 (2013.01); B65B 29/025 (2017.08); B31B 2120/10 (2017.08); B31B 2120/70 (2017.08)] 19 Claims
OG exemplary drawing
 
1. A manufacturing process for producing hermetic single-use food containers, comprising:
forming a 3D container body having a peripheral upper rim, by stamping a 2D blank in a press, the 2D blank including a rim portion and a wall portion, the 2D blank comprises a sheet of laminate of paper and polylactic acid (PLA),
applying a closing lid over the 3D container body,
sealing the closing lid with the peripheral upper rim of the 3D container body, and
a creasing step before forming the 3D container body, where creases are formed in a peripheral zone of the 2D blank, here referred to as a pre-creased peripheral zone, by creasing, stamping or embossing the 2D blank with a creasing or embossing plate, which pre-creased peripheral zone covers at least a part of the rim portion of the 2D blank, wherein the creases have a depth comprised between 0.1 mm and 1 mm, and a width comprised between 0.2 mm and 0.7 mm, and in that they are spaced apart with a pitch comprised between 0.2 mm and 2 mm.