|
7824T
BLACK
COMPARISON
OF CRITICAL PERFORMANCE CHARACTERISTICS
Fresh
Ink vs. Ink Aged 4 Months
The
following is a comparison of critical performance characteristics
between freshly manufactured 7824T Black and 7824T Black aged to the new
extended 4 month shelf life. All critical performance characteristics of
the aged ink were found to be within Xandex specifications.
|
Ink
Performance Characteristic
|
Specification |
Fresh
Ink |
Ink
Aged 4 Months*
|
|
Viscosity
|
720-790
cPs
|
Pass
|
Pass
|
|
Dot
Size
|
18-24
Mil
|
Pass
|
Pass
|
|
Dot
Quality
|
No
cracking or “halo”.
|
Pass
|
Pass
|
|
Degree
of Dispersion
|
Grind
result 0/6 maximum.
|
Pass
|
Pass,
equal to fresh ink.
|
|
Air
Cure Time
|
1.5-3.5
Hrs.
|
Pass
|
Pass
|
|
Adhesion-
Ambient Temperature Cure
|
Tape
test- No ink removed by tape.
|
Pass
|
Pass
|
|
Adhesion-
Heat Cure @ 150 C
|
Tape
test- No ink removed by tape.
|
Pass
|
Pass
|
|
Dot
Yield
|
Not
established.
|
---
|
Equal
to
fresh ink.
|
|
Chemical
Resistance
|
Not
established.
|
---
|
Equal
to
fresh ink.
|
|
Dye/Color
Intensity
|
Equal
to color standard.
|
Pass
|
Pass
|
*
Test ink was aged for the maximum amount of time that ink would
potentially age prior to expiration. Bulk ink and "in
cartridge" shelf life were at the maximum before testing was
conducted.
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