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US 12,110,635 B2Granted
Germ-repellent book and food paper packaging, and method of manufacture
AssigneeMain Choice Paper Products Limited
InventorsWenjun Meng, Pit Shing Tung, Wai Hong Yu, Mingyu Zhang
Life of this patent
Estimating the term…
Abstract
A germ-repellent paper product contains a paper substrate and a germ-repellent overprint varnish. The germ-repellent overprint varnish contains a varnish and a germ-repellent agent. The germ-repellent overprint varnish is coated onto the paper substrate to form a germ-repellent paper product. A method for manufacturing such a germ-repellent paper product is also provided.
Claims18
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.
4 more elements
A process for manufacturing a germ-repellent paper product comprising the steps of:
- A) providing a paper substrate comprising a surface;
- B) providing a germ-repellent overprint varnish comprising:
- i) a germ-repellent agent selected from the group consisting of an amphiphilic surface active agent, a polyelectrolyte, and a combination thereof;
- and
- ii) an oil-based varnish;
- C) coating the surface of the paper substrate with the germ-repellent overprint varnish;
- and
- D) curing the germ-repellent overprint varnish.
5 more elements
Dependencies are inferred from the claim text.