US 11,987,930 B2
Method for printing on colored synthetic fabrics utilizing a dye discharge material
Allon Shimoni, Modiin-Maccabim-Reut (IL); Nir Funt, Ganei Tikva (IL); and Katya Gloukhikh, Tel Aviv (IL)
Assigned to Kornit Digital Ltd., Rosh HaAyin (IL)
Appl. No. 17/780,032
Filed by Kornit Digital Ltd., Rosh HaAyin (IL)
PCT Filed Nov. 24, 2020, PCT No. PCT/IL2020/051208
§ 371(c)(1), (2) Date May 26, 2022,
PCT Pub. No. WO2021/105983, PCT Pub. Date Jun. 3, 2021.
Claims priority of provisional application 62/940,297, filed on Nov. 26, 2019.
Prior Publication US 2022/0403592 A1, Dec. 22, 2022
Int. Cl. D06P 5/00 (2006.01); B41M 1/24 (2006.01); B41M 3/00 (2006.01); B41M 7/00 (2006.01); D06P 5/15 (2006.01); D06P 5/30 (2006.01)
CPC D06P 5/15 (2013.01) [B41M 1/24 (2013.01); B41M 3/008 (2013.01); B41M 7/009 (2013.01); D06P 5/30 (2013.01)] 6 Claims
 
1. A method of printing an image on a pre-dyed synthetic fabric, comprising:
(a) applying at least one ink composition on the fabric on at least one first area, so as to form the image;
(b) applying a dye-discharge agent on at least one second area of the fabric, said at least one second area is at least partially overlapping said at least one first area; and
(c) curing the image,
wherein:
said curing is effected by heating said at least one ink composition that forms the image;
the pre-dyed synthetic fabric releases a dye upon said heating;
and said dye is dischargeable by said dye-discharge agent when released from the fabric upon said heating;
a pigment in said at least one ink composition is impervious to said dye-discharge agent; and
one of said at least one ink composition comprises an opaque white pigment, and said applying said at least one ink composition further comprises applying another of said at least one ink composition that comprises a transparent colored pigment subsequent to said ink composition that comprises said opaque white pigment.