US 12,484,612 B2
Triple capsule, and apparatus and method for manufacturing same
Ick Joong Kim, Daejeon (KR); Ho Rim Song, Daejeon (KR); and Jae Gon Lee, Daejeon (KR)
Assigned to KT&G CORPORATION, Daejeon (KR)
Appl. No. 17/255,251
Filed by KT&G CORPORATION, Daejeon (KR)
PCT Filed Nov. 20, 2019, PCT No. PCT/KR2019/015920
§ 371(c)(1), (2) Date Dec. 22, 2020,
PCT Pub. No. WO2020/116827, PCT Pub. Date Jun. 11, 2020.
Claims priority of application No. 10-2018-0154698 (KR), filed on Dec. 4, 2018.
Prior Publication US 2021/0267270 A1, Sep. 2, 2021
Int. Cl. A24D 3/06 (2006.01); A24D 3/02 (2006.01); B01J 13/04 (2006.01); B01J 13/20 (2006.01)
CPC A24D 3/061 (2013.01) [A24D 3/0216 (2013.01); B01J 13/04 (2013.01); B01J 13/206 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method of manufacturing a triple capsule, the method comprising:
supplying an interior material, an intermediate film material, and an exterior film material;
discharging a triple molding body by receiving the interior material, the intermediate film material, and the exterior film material through a nozzle mount and performing coextrusion on the interior material, the intermediate film material, and the exterior film material through a triple nozzle in which a first nozzle discharging the interior material, a second nozzle discharging the intermediate film material, and a third nozzle discharging the exterior film material are arranged concentrically; and
forming the triple capsule by circulating a coolant and cooling the triple molding body,
wherein the intermediate film material comprises waxes and oils, a mixing ratio of the oils in the intermediate film material is 1% or more and 80% or less based on a total weight of the intermediate film material, such that a crushing strength of the triple capsule is 0.3 kgf or more and 3.5 kgf or less by adjusting a hardness of the intermediate film material from 9 penetration unit (PU) or more and 156 PU or less through the mixing ratio of the oils, and
wherein the first nozzle, the second nozzle, and the third nozzle do not have a gap between them.