	US 12,000,092 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)
Filed by Main Choice Paper Products Limited, Kowloon (HK)
Filed on Jul. 19, 2021, as Appl. No. 17/305,959.
Application 17/305,959 is a continuation of application No. 17/310,125, filed on Jul. 19, 2021.
Claims priority of application No. HK19121974.0 (HK), filed on Apr. 8, 2019; and application No. PCT/CN2020/083480 (WO), filed on Apr. 7, 2020.
Prior Publication US 2023/0022618 A1, Jan. 26, 2023
This patent is subject to a terminal disclaimer.
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. a water-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.