US 12,297,003 B2
Method for forming biodegradable bags
Jacobus Cornelis Rasser, Amsterdam (NL); and Hendrik Jan van den Berg, Hoofddorp (NL)
Assigned to Otium Packaging Technology BV, Amsterdam (NL)
Appl. No. 17/297,497
Filed by Otium Packaging Technology BV, Amsterdam (NL)
PCT Filed Nov. 27, 2019, PCT No. PCT/NL2019/050788
§ 371(c)(1), (2) Date May 27, 2021,
PCT Pub. No. WO2020/111942, PCT Pub. Date Jun. 4, 2020.
Claims priority of application No. 2022100 (NL), filed on Nov. 30, 2018; and application No. 2022463 (NL), filed on Jan. 28, 2019.
Prior Publication US 2022/0033117 A1, Feb. 3, 2022
Int. Cl. B65B 9/20 (2012.01); B65B 51/06 (2006.01); B65B 61/02 (2006.01); B65B 65/06 (2006.01); B65D 65/46 (2006.01); B65D 75/44 (2006.01)
CPC B65B 9/20 (2013.01) [B65B 51/06 (2013.01); B65B 61/02 (2013.01); B65B 65/06 (2013.01); B65D 65/466 (2013.01); B65D 75/44 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method for making a biodegradable package on a form-film-seal machine, said method comprising the steps of:
a. providing a continuous web of a biodegradable material, said web having a machine direction and a cross-machine direction;
b. providing on the web discrete areas of exposed adhesive;
c. forming a seal in the machine direction of the web by adhering overlapping edges of the web to one another; and
d. forming seals in the cross-machine direction of the web using the discrete areas of exposed adhesive,
wherein the discrete areas of exposed adhesive are formed by providing apertures in the web, said apertures being arranged in sets, and by applying adhesive labels to the web so that each adhesive label covers a set of apertures.