US 11,905,664 B2
Hot-press gas grafting hydrophobization apparatus, and eco-friendly oil-absorbing low- weight paper manufactured using same
Myoung Ku Lee, Gangwon-do (KR); Jeong Yong Ryu, Gangwon-do (KR); Kwang Seob Lee, Gangwon-do (KR); Jae Hoon Lee, Gangwon-do (KR); Han Je Cho, Seoul (KR); Hyeok Jun Kwon, Gyeonggi-do (KR); David Guerin, Grenoble (FR); Philippe Martinez, Grenoble (FR); and Kyung Wha Choi, Gangwon-do (KR)
Assigned to KNU-Industry Cooperation Foundation, Gangwon-do (KR); Daehan Paper Co., Ltd., Chungcheongbuk-do (KR); and Taekyung Polymer Co., Ltd., Gyeonggi-do (KR)
Appl. No. 17/282,814
Filed by KNU-Industry Cooperation Foundation, Gangwon-do (KR); Daehan Paper Co., Ltd., Chungcheongbuk-do (KR); and Taekyung Polymer Co., Ltd., Gyeonggi-do (KR)
PCT Filed Sep. 17, 2019, PCT No. PCT/KR2019/011984
§ 371(c)(1), (2) Date Apr. 5, 2021,
PCT Pub. No. WO2020/071659, PCT Pub. Date Apr. 9, 2020.
Claims priority of application No. 10-2018-0118183 (KR), filed on Oct. 4, 2018.
Prior Publication US 2021/0381171 A1, Dec. 9, 2021
Int. Cl. D21H 23/56 (2006.01); D21H 17/36 (2006.01); D21H 21/16 (2006.01); D21H 25/06 (2006.01); D21H 27/00 (2006.01); D21H 23/70 (2006.01)
CPC D21H 23/56 (2013.01) [D21H 17/36 (2013.01); D21H 21/16 (2013.01); D21H 23/70 (2013.01); D21H 25/06 (2013.01); D21H 27/002 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A press-heating gas grafting hydrophobization apparatus comprising:
an unwinder unit for continuously supplying a base material;
a drying unit for heating a surface of the base material exposed to a hydroxyl group;
a coating roller for coating a gas grafting reagent on the surface of the base material exposed to the hydroxyl group;
a drying roller for evenly spreading the coated grafting reagent on the surface of the base material, the drying roller guiding the surface of the base material on which the grafting reagent is coated toward a surface of the drying roller;
a non-air-permeable dryer belt located on an outer surface of the base material on which the gas grafting reagent is coated and surrounding the drying roller, and pressing the base material on which the gas grafting reagent is coated to the drying roller;
a ventilator for removing hydrogen chloride generated during a gas grafting reaction;
an air knife nozzle for removing a residual gas grafting reagent from the surface of the base material; and
a rewinder unit for rewinding the base material subjected to the gas grafting reaction.