Offset Printing Inks Based on Rapeseed and Sunflower Oil

清泥 · 发表于 2009-3-28 22:54:40

Offset Printing Inks Based on Rapeseed and Sunflower Oil.
Part I: Synthesis and Characterization of Rapeseed Oiland
Sunflower Oil-Modified Alkyd Resins

ABSTRACT: Two sets of alkyd resins of variable oil lengths
with the required properties for offset printing ink formulations,
modified by sunflower and rapeseed oil, were synthetized according
to the “monoglyceride” process. The influence of the
acyl composition of the modifying vegetable oil and of the oil
content on alkyds’ properties was determined by detailed chemical
and rheological characterization. Molecular structure, size,
and molecule size distribution appeared to be linked to these
two factors. A comparative study with two usual linseed oilmodified
alkyds led to determination of the more appropriate
alkyds for applications in offset varnishes.

KEY WORDS: Alkyd resin, fatty acids, offset ink, oil length,
rapeseed oil, sunflower oil.