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公开(公告)号：US20250040594A1
公开(公告)日：2025-02-06
申请号：US18714782
申请日：2023-02-03
Applicant: KT&G CORPORATION , KOLON INDUSTRIES, INC.
Inventor： Sung Hoon HA , Kyeng Bae MA , Jin Chul YANG , Jun Hui LEE , Bong Su CHEONG , Seung Dong SEO , Jeong Hun LEE , Jong Cheol JEONG , Sang Woo JIN , Yeong Nam HWANG
Abstract: A cigarette filter which includes lyocell tow made of a plurality of lyocell fibers and a binder configured to bond the lyocell fibers to each other is provided. The cigarette filter according to one embodiment of the present disclosure reduces each of tar and nicotine, which are delivered through cigarette smoke, by 70% to 95%. The cigarette filter according to one embodiment of the present disclosure has a resistance to draw of 80 mmWG to 200 mmWG. The cigarette filter according to one embodiment of the present disclosure is filled with the lyocell tow at a packing density of 0.2 g/mL to 0.6 g/mL. The cigarette filter according to one embodiment of the present disclosure addresses basic material-related problems, such as low hardness, of the lyocell tow and, further, has excellent filtration functionality as a filter.
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公开(公告)号：US20240284970A1
公开(公告)日：2024-08-29
申请号：US18570769
申请日：2022-09-21
Applicant: KOLON INDUSTRIES, INC. , KT&G CORPORATION
Inventor： Sang Woo JIN , Jong Cheol JEONG , Jeong Hun LEE , Seung Dong SEO , Yeong Nam HWANG , Sunghoon HA , Kyengbae MA , Jin-Chul YANG , Bong Su CHEONG
CPC classification number: A24D3/10 , A24D3/0204 , D01D5/06
Abstract: The present disclosure relates to a lyocell material for a cigarette filter and a method of manufacturing the same, in which, by setting the optimal total denier range of crimped lyocell tow, which may realize filter properties equivalent to cellulose acetate (CA) currently used as a cigarette filter, the optimal processability for manufacturing a cigarette filter may be secured, and due to the excellent biodegradability thereof, environmental pollution factors caused by conventional discarded cigarette butts may be reduced.
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Patent Agency Ranking
公开(公告)号：US20250098736A1
公开(公告)日：2025-03-27
申请号：US18728212
申请日：2023-01-17
Applicant: KT & G CORPORATION , KOLON INDUSTRIES, INC.
Inventor： Kyengbae MA , Ki Jin AHN , Jin YANG , Bong Su CHEONG , Sunghoon HA , Seung Dong SEO , Jeong Hun LEE , Jong Cheol JEONG , Sang Woo JIN , Yeong Nam HWANG
Abstract: The present disclosure provides a cigarette filter including lyocell tow including a bundle of lyocell fibers, a moisturizer, and a binder, a smoking article including the cigarette filter, and a method of producing the cigarette filter.
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公开(公告)号：US20240407430A1
公开(公告)日：2024-12-12
申请号：US18689643
申请日：2022-11-03
Applicant: KT & G CORPORATION , KOLON INDUSTRIES, INC.
Inventor： Jin Chul YANG , Kyeng Bae MA , Ki Jin AHN , Bong Su CHEONG , Sung Hoon HA , Jong Cheol JEONG , Sang Woo JIN , Jeong Hun LEE , Seung Dong SEO , Yeong Nam HWANG
Abstract: A cigarette filter which includes lyocell tow made of a plurality of lyocell fibers and a binder configured to bond the lyocell fibers to each other and has a hardness of 85% or higher is provided. According to one embodiment of the present disclosure, the cigarette filter has a hardness of 80% or higher even 5 minutes after 20 parts by weight to 25 parts by weight of water is added thereto based on 100 parts by weight of the lyocell tow. According to one embodiment of the present disclosure, the cigarette filter has a degree of collapse due to moisture of 7% or lower. According to one embodiment of the present disclosure, the cigarette filter overcomes existing, material-related problems of lyocell tow and has a high hardness and a low degree of collapse due to moisture.
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公开(公告)号：US20250040592A1
公开(公告)日：2025-02-06
申请号：US18714720
申请日：2023-06-07
Applicant: KT&G CORPORATION , KOLON INDUSTRIES, INC.
Inventor： Sung Hoon HA , Jin Chul YANG , Kyeng Bae MA , Bong Su CHEONG , Seung Dong SEO , Jeong Hun LEE , Jong Cheol JEONG , Sang Woo JIN , Yeong Nam HWANG
Abstract: The present disclosure provides a smoking article filter which includes lyocell tow including lyocell fibers, a binder solution, and filter wrapping paper, and has 90% or higher biodegradation within 6 months according to the American Society for Testing and Materials (ASTM) D6691 under marine conditions at 30° C., and a smoking article including the smoking article filter.
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公开(公告)号：US20250000136A1
公开(公告)日：2025-01-02
申请号：US18712156
申请日：2022-11-03
Applicant: KT&G CORPORATION , KOLON INDUSTRIES, INC.
Inventor： Jin Chul YANG , Soo Ho KIM , Kyeng Bae MA , Bong Su CHEONG , Sung Hoon HA , Jong Cheol JEONG , Sang Woo JIN , Jeong Hun LEE , Seung Dong SEO , Yeong Nam HWANG
Abstract: A cigarette filter which includes lyocell tow made of a plurality of lyocell fibers, a binder configured to bond the lyocell fibers to each other, and a solvent dispersed in an inner space of the cigarette filter including the lyocell tow, wherein the solvent includes a polyhydric alcohol, is provided. According to one embodiment of the present disclosure, the polyhydric alcohol is a diol having a C1-C4 alkylene group. The cigarette filter according to one embodiment of the present disclosure overcomes the existing material-related problems of lyocell tow and has excellent hardness.
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7.发明公开公开(公告)号：US20240284968A1
公开(公告)日：2024-08-29
申请号：US18570859
申请日：2022-09-21
Applicant: KOLON INDUSTRIES, INC. , KT&G CORPORATION
Inventor： Sang Woo JIN , Jong Cheol JEONG , Jeong Hun LEE , Seung Dong SEO , Yeong Nam HWANG , Sunghoon HA , Kyengbae MA , Jin-Chul YANG , Bong Su CHEONG
IPC: A24D3/02 , A24D3/06 , A24D3/10 , A24D3/14 , A24D3/16 , D01D5/06 , D01F2/00 , D01F11/02 , D02G1/12
CPC classification number: A24D3/022 , A24D3/063 , A24D3/068 , A24D3/10 , A24D3/14 , A24D3/16 , D01D5/06 , D01F2/00 , D01F11/02 , D02G1/12 , D10B2201/22 , D10B2505/04
Abstract: The present disclosure relates to a lyocell material with controlled whiteness by hydrogen peroxide treatment and a manufacturing method thereof, wherein the lyocell material has improved whiteness due to an aging effect through drying and packaging by a predetermined amount of hydrogen peroxide remaining in a tow, and may replace a CA cigarette filter to lower environmental pollution problems caused by discarded cigarette butts, and thus the lyocell material is suitable as a cigarette filter.
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