Which batch came closest to the BYK-9076 targets?21 Aug 02:22
I have enough to answer. Only Batch 5 in this data drop carries measured application-test gloss values, so it is the only batch that can be scored against the BYK-9076 reference on that dimension.
Answer:
Caveat first: the records store the 43.2/30.1 pair only as *targets* (critical parameters), and no batch in this drop has a measured gloss equal to 43.2 — that number is the acid-value (AV) reference, not a film-gloss value. The gloss values in the records are film-gloss from NC-PU ink trials, compared against the *same-day BYK-9076 standard run*, so "closest to target" here means closest to that day's BYK standard.
Only Batch 5 (Lab Batch 05) has application-test gloss data, so it is the only batch scoreable on gloss:
Batch 5's own outcome was "ok," cited as "Tested on different pigment found equivalent results to reference product / Only re solubility parameters was inferior."
Other "ok" batches (10, 15, 36, 48, 48 Q) have no gloss measurements in the records, so they cannot be ranked on gloss — a gap, not a pass.
So: Batch 5 came closest, with its #L05 Violet 23 run (54.6 vs 53.9) essentially matching that day's BYK-9076 standard.
Answer:
Caveat first: the records store the 43.2/30.1 pair only as *targets* (critical parameters), and no batch in this drop has a measured gloss equal to 43.2 — that number is the acid-value (AV) reference, not a film-gloss value. The gloss values in the records are film-gloss from NC-PU ink trials, compared against the *same-day BYK-9076 standard run*, so "closest to target" here means closest to that day's BYK standard.
Only Batch 5 (Lab Batch 05) has application-test gloss data, so it is the only batch scoreable on gloss:
- Sample S 9076 #L05, Violet 23, trial 05.02.2025: Gloss 54.6 vs BYK standard 53.9 (Δ +0.7) — closest match.
- Sample S 9076 #L05, Black, trial 05.02.2025: Gloss 20.9 vs standard 41.5 (far off).
- Sample S 399 #B 5, Black, trial 05.12.2025: Gloss 37 vs standard 35.3 (Δ +1.7).
- Violet 27: 8.8 vs 7.2 (Δ +1.6).
Batch 5's own outcome was "ok," cited as "Tested on different pigment found equivalent results to reference product / Only re solubility parameters was inferior."
Other "ok" batches (10, 15, 36, 48, 48 Q) have no gloss measurements in the records, so they cannot be ranked on gloss — a gap, not a pass.
So: Batch 5 came closest, with its #L05 Violet 23 run (54.6 vs 53.9) essentially matching that day's BYK-9076 standard.
Sources
confidence: medium