US 12,258,252 B2
Deodorizing method
Atsushi Hayakawa, Tokyo (JP); Tsubasa Tokimoto, Tokyo (JP); Ryuichi Tamagawa, Tokyo (JP); and Syuta Ito, Tokyo (JP)
Assigned to Dai Nippon Printing Co., Ltd., Tokyo (JP)
Appl. No. 16/981,411
Filed by Dai Nippon Printing Co., Ltd., Tokyo (JP)
PCT Filed Mar. 28, 2019, PCT No. PCT/JP2019/013851
§ 371(c)(1), (2) Date Sep. 16, 2020,
PCT Pub. No. WO2019/189683, PCT Pub. Date Oct. 3, 2019.
Claims priority of application No. 2018-065906 (JP), filed on Mar. 29, 2018; and application No. 2018-065920 (JP), filed on Mar. 29, 2018.
Prior Publication US 2021/0009396 A1, Jan. 14, 2021
Int. Cl. A61L 2/04 (2006.01); A61L 2/18 (2006.01); B67C 3/00 (2006.01)
CPC B67C 3/001 (2013.01) [A61L 2/04 (2013.01); A61L 2/18 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A deodorizing method of deodorizing a filling system, the deodorizing method comprising:
a first CIP step of performing CIP of a first circulation system including a product heating sterilizer that heats a drink to a heated drink temperature in a range of 60° C. to 150° C., a product supply system pipe including a plurality of upstream-side supply pipes through which the drink is to be passed, and a packing provided at a connection point between the upstream-side supply pipes, the plurality of upstream-side supply pipes being connected to each other in series;
a first SIP step of performing SIP of the first circulation system;
a second CIP step of performing CIP of a second circulation system including a filling device that fills a content in a vessel;
a second SIP step of performing SIP of the second circulation system;
a step of cooling the second circulation system after a second SIP step; and
a deodorizing treatment step of performing a deodorizing treatment on the first circulation system and the second circulation system,
wherein the step of cooling the second circulation system includes a step of cooling the second circulation system with aseptic air, and a step of cooling the second circulation system, which has been cooled with aseptic air, with aseptic water,
wherein the deodorizing treatment step includes a step of supplying water in a flow path of the first circulation system which has been subjected to the first SIP, a step of heating the water supplied to the first circulation system by the product heating sterilizer, and a step of supplying the water heated by the product heating sterilizer in a flow path of the second circulation system which has been subjected to the step of cooling the second circulation system
wherein, in the second SIP step, steam is supplied to the second circulation system at a temperature in a range of 90° C. to 150° C.,
wherein, in the step of cooling the second circulation system with aseptic air, the second circulation system is cooled to a temperature in a range of 60° C. to 100° C., and
wherein, in the deodorizing treatment step, a temperature of the water supplied to the first circulation system is equal to or higher than the heated drink temperature, and thus the packing is thermally expanded by the water, and the water enters a gap formed between the packing and the upstream-side supply pipe due to thermal expansion of the packing.