Formaldehyde-free inkjet compositions and processes

摘要

Disclosed are a process for inkjet printing color images on various substrates using a formaldehyde-free crosslinking agent in the ink composition, which is therefore devoid of formaldehyde emission and suitable for health-aware manufacturing practices, as well as objects having images and designs printed thereon which are devoid of formaldehyde and therefore suitable for use by infants.

主权项

1. An inkjet composition comprising a crosslinking agent, a property-sensitive agent, a co-polymerizable agent, a colorant and a second carrier, said property-sensitive agent is sensitive to a change in a chemical and/or physical property, such that upon effecting said change on a surface of an object the inkjet composition congeals on said surface to thereby form an image on said object, wherein said crosslinking agent is a formaldehyde-free crosslinking agent and said image is substantially devoid of formaldehyde emission, said formaldehyde-free crosslinking agent is a heteroaryl polycarbamate.