国家/地区 中国（4）
IPC部 B（7） C（4）
IPC大类 B41（7） C09（4） B42（2）
IPC小类 B41M（7） C09D（4） B42D（2）
IPC B41M003/14（7）
发明人
公开年 2022（4） 2021（3）
申请年 2021（3）  2020（2）  2022（2） 
专利权人

Physical unclonable function (PUF), comprises layer of 2D material having top surface containing creases, and substrate carrying and facing bottom surface of layer of two-dimensional (2D) material.

XIE Q, CHEN P

Time-sensitive fluorescent anti-counterfeiting material used in distinguishing and protecting product as anti-counterfeiting material, comprises aggregation color-changing fluorescence material, sublimable dispersion matrix and solvent.

WU Y, FENG L, CUI C, ZHANG Y

Ink composition for security printing, and used in manufacture of security indicia, comprises dielectric matrix having hydroxyl group, graphene quantum dots dispersed in dielectric matrix, and graphene quantum dot composite having afterglow properties emitting phosphorescence at room temperature.

JEON S, PARK M, WOO J, PARK M S

Color printing process for carton, involves curing printed hot-pressed groove, curing, chemically treating to form basic anti-counterfeiting printing pattern, printing middle layer on pattern, curing, coating protective layer on patterned middle layer, molding outer protective layer on middle-layer.

ZHOU Y, YANG W

Preparation of fluorescent anti-counterfeiting coating comprises drying, pulverizing leather waste, dispersing in ultrapure water, hydrothermal reacting, suction filtering, compounding with thickener and printing code on substrate.

LI L, MA J, SHI J, ZHANG W

Method of obtaining liquid crystal pigments coated with carbon black coating, involves punching roll A is punched using die, where the roll A is punched in random, specific or discreet shape and sizes, and collecting liquid crystal pigments.

PATEL S P

Double-layer identification quantum dot anti-counterfeiting label based on optically convex surface useful for flexible and stretchable applications, comprises e.g. substrate layer, optically convex surface layer, and cover layer.

LI F, ZHENG X, ZHU Y, HU H, JU S, GUO T