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Ink Analysis (part 2) - Coggle Diagram
Ink Analysis (part 2)
photocopier compositions
resins
cross-linking agents
binding agents
carriers
addictives
colouring agents
ink toner
organometallic compounds
inorganic oxides
metal oxides
ball point pen compositions
resins (for viscosity)
lubricants (for rotation & drying agents)
biocides (to prevent microbial growth)
surfactants (ensure ink is capable of wetting the metal tip)
corrosion-inhibitor (preserve the metal ball & point socket)
shear thinning agents (permit flow thru of pen tip)
preliminary analysis
stereomicroscope
reveal pen line features
writing grooves
striations
gooping
fiber diffusion
rollerball pen ink
fiber-tipped pen ink
felt-tipped pen ink
fountain pen ink
porous-tipped pen ink
gel pen ink
FTIR
VSC
dyes
can undergo photosensitized oxidation by
moisture
atmosphere
temperature
gel pen compositios
thymophthalein (blue solution - evaporates when xposed to air)