	US 12,110,635 B2
	Germ-repellent book and food paper packaging, and method of manufacture
Wenjun Meng, Shatin (HK); Pit Shing Tung, Kowloon (HK); Wai Hong Yu, Shatin (HK); and Mingyu Zhang, Shatin (HK)
Assigned to MAIN CHOICE PAPER PRODUCTS LIMITED, Chai Wan (HK)
Appl. No. 17/310,125
Filed by Main Choice Paper Products Limited, Chai Wan (HK)
PCT Filed Apr. 7, 2020, PCT No. PCT/CN2020/083480 § 371(c)(1), (2) Date Jul. 19, 2021, PCT Pub. No. WO2020/207372, PCT Pub. Date Oct. 15, 2020.
Claims priority of application No. HK19121974.0 (HK), filed on Apr. 8, 2019.
Prior Publication US 2022/0064861 A1, Mar. 3, 2022
Int. Cl. D21H 21/36 (2006.01); D21H 19/14 (2006.01); D21H 23/32 (2006.01)

CPC D21H 21/36 (2013.01) [D21H 19/14 (2013.01); D21H 23/32 (2013.01)]

18 Claims

1. A germ-repellent paper product, comprising:

A) a paper substrate; and

B) a germ-repellent overprint varnish comprising:

i. an oil-based varnish; and

ii. a germ-repellent agent selected from the group consisting of an amphiphilic surface active agent, a polyelectrolyte, and a combination thereof,

wherein the germ-repellent overprint varnish is coated onto the paper substrate by a method selected from the group consisting of coating, dipping, brushing, and a combination thereof.