Title:
BARRIER AND HEAT-SEALABLE CELLULOSE FILM, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/236784
Kind Code:
A1
Abstract:
The present invention relates to the technical field of functional cellulose films, and provides a barrier and heat-sealable cellulose film, a preparation method therefor, and an application thereof. The barrier and heat-sealable cellulose film provided by the present invention comprises a barrier layer, a regenerated cellulose base film, and an adhesive layer which are sequentially stacked, wherein the barrier layer is formed by a barrier coating (a polyvinylidene chloride emulsion, a first anti-sticking agent, and water), and the adhesive layer is formed by an adhesive coating (an emulsion (an acrylate emulsion and/or a polyurethane emulsion), a second anti-sticking agent, and water). The barrier and heat-sealable cellulose film provided by the present invention has high adhesion and high barrier performance, can be directly hot-pressed with a paper product, is high in adhesive strength with a paper product, and meets the use requirement of a coated paper for adhesive strength. The barrier and heat-sealable cellulose film provided by the present invention is high in moisture barrier performance and oxygen barrier performance, and has excellent aroma retention performance, fresh-keeping performance, and moisture resistance. The barrier and heat-sealable cellulose film provided by the present invention is high in self-heat-sealing strength, and can be self-hot-pressed to prepare a packaging bag which is high in edge sealing strength.
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Inventors:
LI KEXUAN (CN)
WANG XIN (CN)
QIU JINJIANG (CN)
WANG CHAO (CN)
JIANG XIUCAI (CN)
LI MENG (CN)
CHEN YUPING (CN)
SHI TUO (CN)
LIU MIN (CN)
LI LIANBO (CN)
LIU FAGUANG (CN)
YAO RUIXIAN (CN)
WANG XIN (CN)
QIU JINJIANG (CN)
WANG CHAO (CN)
JIANG XIUCAI (CN)
LI MENG (CN)
CHEN YUPING (CN)
SHI TUO (CN)
LIU MIN (CN)
LI LIANBO (CN)
LIU FAGUANG (CN)
YAO RUIXIAN (CN)
Application Number:
PCT/CN2023/096422
Publication Date:
December 14, 2023
Filing Date:
May 26, 2023
Export Citation:
Assignee:
SHANDONG HENGLIAN NEW MAT CO LTD (CN)
International Classes:
C09J7/20; C08J7/048; C08L1/02; C09D7/65; C09D127/08; C09J7/30; C09J11/08; C09J133/04; C09J175/04
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Other References:
WANG, SIXUE; XIE, ZHONGPING; YANG, JIANJUN; CHENG, CHUANZHENG; WU, QINGYUN; WU, MINGYUAN; ZHANG, JIAN'AN; LIU, JIUYI; FAN, RONGQI;: "Research and Development of Graphene Modified Waterborne PVDC Anticorrosive Coating", AN HUI HUA GONG = ANHUI CHEMICAL INDUSTRY, CN, vol. 45, no. 06, 15 December 2019 (2019-12-15), CN , pages 20 - 25, XP009550944, ISSN: 1008-553X
GAO, XUEWEN: "Processing Technology and Application of PVDC Multilayer Co-Extrusion Film", PLASTICS PACKAGING, no. 4, 15 August 2007 (2007-08-15), pages 33 - 39, XP009551224, ISSN: 1006-9828
GAO, XUEWEN: "Processing Technology and Application of PVDC Multilayer Co-Extrusion Film", PLASTICS PACKAGING, no. 4, 15 August 2007 (2007-08-15), pages 33 - 39, XP009551224, ISSN: 1006-9828
Attorney, Agent or Firm:
BEIJING GAOWO LAW FIRM (CN)
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