Process and system for printing images on absorptive surfaces

Patent metadata

Field	Value
Publication number	US-11447648-B2
Application number	US-202016744833-A
Country	US
Kind code	B2
Filing date	Jan 16, 2020
Priority date	May 30, 2004
Publication date	Sep 20, 2022
Grant date	Sep 20, 2022

Abstract

A novel process for printing high quality, high resolution, multi-color images on fibrous or porous materials or other ink absorbing materials, or on materials having high surface tension with a liquid ink, and especially over garments, is disclosed. The process is effected by applying a wetting composition, prior to, concomitant with and/or subsequent to applying an ink composition and formation of the images. Pre-printing and printing systems for executing the above process are further disclosed.

First claim

What is claimed is:

1. A process of inkjet printing an image on a garment, comprising:
(a) loading a garment on a garment handling assembly of a printing machine;
(b) prior to any printing step, causing an ironing unit of the printing machine to iron the garment while loaded on the garment handling assembly;
(c) causing an inkjet printing assembly of the printing machine to print the image on the ironed garment on the garment handling assembly; and
(d) unloading the printed garment from the garment handling assembly,
wherein the motion of the garment handling assembly to move the garment handling assembly with loaded garment to the ironing unit and the printing assembly, within the printing machine, is controlled by a computer.

2. The process of claim 1 , further including the step of, prior to said step (c), causing a liquid applicator of the printing machine to wet the garment, said step (b) occurring prior to or subsequent to said wetting.

3. A process according to claim 2 , wherein said liquid applicator is caused to wet the garment with a wetting composition selected from the group consisting of water, at least one organic solvent, and a combination of water and at least one organic solvent.

4. A process according to claim 2 , that does not include any pre-treatment of the fabric of the garment prior to said step (a) for the purpose of overcoming limitations associated with digital inkjet printing.

5. A printer for printing an image on a garment, comprising:
a garment handling assembly onto which a garment can be loaded for printing;
an ironing unit that effects ironing of a garment loaded on said garment handling assembly;
an inkjet printing assembly that prints an image onto the ironed garment loaded on said garment handling assembly; and
a computer that controls the motion of the garment handling assembly with respect to said ironing unit and said inkjet printing assembly such that said garment handling assembly is moved to said ironing unit prior to being moved to any inkjet printing assembly.

6. A printer according to claim 5 , further including a liquid applicator that wets at least a portion of the loaded garment prior to printing by said inkjet printing assembly.

7. A printer according to claim 6 , wherein said liquid applicator wets the at least a portion of the loaded garment with a wetting composition selected from the group consisting of water, at least one organic solvent, and a combination of water and at least one organic solvent.

Assignees

• Kornit Digital Ltd

Inventors

• Ben-Zur Ofer

Classifications

• D06P1/5257

  (Meth)acrylic acid · CPC title

• D06P1/625

  Aromatic · CPC title

• C09D11/10 Primary

  based on artificial resins · CPC title

• D06P1/65118

  Compounds containing hydroxyl groups · CPC title

• C09D11/30 Primary

  Inkjet printing inks · CPC title