	US 12,275,259 B2
	Transfer paper and stamping method combining screen printing and digital printing
Julio Alberto Álvarez Pérez, Envigado (CO)
Assigned to SUMIPRINT QUIMICA Y COLOR S.A.S., Envigado (CO)
Appl. No. 17/435,543
Filed by SUMIPRINT QUIMICA Y COLOR S.A.S., Medellín (CO)
PCT Filed Aug. 15, 2020, PCT No. PCT/IB2020/057706 § 371(c)(1), (2) Date Dec. 8, 2021, PCT Pub. No. WO2021/028888, PCT Pub. Date Feb. 18, 2021.
Claims priority of application No. NC2019/0008859 (CO), filed on Aug. 15, 2019.
Prior Publication US 2022/0143996 A1, May 12, 2022
Int. Cl. B41M 1/12 (2006.01); B41M 3/12 (2006.01); B41M 5/025 (2006.01); B41M 5/52 (2006.01); B41M 5/03 (2006.01); B41M 5/035 (2006.01)

CPC B41M 1/12 (2013.01) [B41M 3/12 (2013.01); B41M 5/025 (2013.01); B41M 5/52 (2013.01); B41M 5/5218 (2013.01); B41M 5/5254 (2013.01); B41M 5/0256 (2013.01); B41M 5/03 (2013.01); B41M 5/0355 (2013.01)]

15 Claims

1. A transfer paper comprising:

a base formed by a bond-, kraft- or glassine-type cellulose sheet; and

a coating layer comprising 0.1-30% wt. water soluble polymers, 0.1-10% wt. suspended solids for drying the ink, 8-30% wt. base resin or polymer compatible with transfer base material, 2-10% wt. binding polymer, 0.1-8% release agents, 0.1-4% wt. emulsifiers, 0.1-2% wt. pH stabilizer, and 0.1-1% wt. preservatives.