Why is masterbatch held at 2.0% on a Spec military black olive tan plastic protective case custom?

Answer: 2.0% is a ceiling, not a target; one shared dose keeps the carrier ratio fixed across three colours, and more pigment trades impact strength for hue.

Why does each colour get its own 190-230 °C zone curve?

Answer: Switching changes masterbatch but not mould, so any zone drift moves delta E from 1.5 toward 2.5; a per-colour curve locates which shear-heat step shifted.

Why read delta E ≤1.5 on lid flat and side wall?

Answer: The flat governs hue, the wall governs flow-mark lightness; both under 1.5 means one colour, while a flat-only read misses a dark wall.

Does delta E ≤2.5 after 500 h mean drift or absolute?

Answer: It is the same-point difference before and after ageing, not one absolute read; near 2.5 check pigment lightfastness, then whether 60 MPa left the skin porous.

Why match hardware colour on a Spec military black olive tan plastic protective case custom?

Answer: Latches and guards a step off make the case look like two lots; compare the group in lightness and hue, and re-sample when the supplier changes.

Spec military black olive tan plastic protective case custom

Quick answer: A Spec military black olive tan plastic protective case custom holds batch delta E at 1.5 with a 2.0% masterbatch across four 190-230 C zones.

Three Masterbatch Ratios for a Spec military black olive tan plastic protective case custom
Same-Mould Co-Injection Zones and Holding Pressure
Sampling and Reading Batch Colour Difference
Colour Drift After Xenon-Arc Ageing
Matching Hardware Colour to the Shell
FAQ

1. Three Masterbatch Ratios for a Spec military black olive tan plastic protective case custom

A Spec military black olive tan plastic protective case custom is 600×440×260 mm outside, 535×375×195 mm inside, 4.2 mm wall, 6.4 kg empty. Black, olive and tan each use one masterbatch at 2.0%, so the carrier share stays fixed and only the pigment differs. Carrier resin matches the shell grade, keeping melt flow from dragging a colour line into a streak. Each lot is dried by batch number; excess moisture silvers the black shell and lightens the green and tan. JUNZHIJIA treats 2.0% as a ceiling, not a target: more pigment holds hue but drops impact strength.

Fix 2.0% first and the zones and pressure share one datum. A yellow green lot is traced to its masterbatch and drying log, not hidden by raising heat.

Colour lot	Masterbatch	Sample basis
Black	2.0%	Standard black
Olive	2.0%	Standard olive
Tan	2.0%	Standard tan
Changeover	Trial shot	Logged comparison

2. Same-Mould Co-Injection Zones and Holding Pressure

A Spec military black olive tan plastic protective case custom uses one mould with four barrel zones rising 190-230 °C; the steps only offset shear heat, not chase darker colour. Holding at 60 MPa keeps melt density until the gate freezes; relax it and the black corner sinks first while green and tan lose depth. Each colour logs its own four-zone curve, switching masterbatch but never mould, with a first-article colour check after any restart. Working span −25 °C to 60 °C is a product limit, logged apart from machine zones. Four latches at 420 N and 3-layer stacking belong to assembly, borrowed only for shell load recheck.

Spec military black olive tan plastic protective case custom open studio view, grey stepped foam in lid and base, two top latches and front handle

Zone drift shows up as colour difference first: any step in 190-230 °C pushes delta E from 1.5 toward 2.5. A melt sample per shift beats judging a finished lot.

Colouring stage	Machine setting	Logged value
Four zones	190-230 °C	Zone curves
Holding	60 MPa	Before gate freeze
Masterbatch	2.0%	By colour lot
Changeover	Masterbatch only	First-article check

3. Sampling and Reading Batch Colour Difference

On a Spec military black olive tan plastic protective case custom the batch limit is delta E ≤1.5, sampled as three shells per machine, colour and shift, read on lid flat and side wall under standard light. The flat governs hue, the wall governs flow marks and thickness lightness; both must sit under 1.5 for one colour. One spectro, one standard sample, re-zeroed whenever either changes, or lots cannot be compared. Near 1.5, tell grey black from yellow tan before re-reading the zone curve.

Sampling skips gates and weld lines, which run dark by nature. Sealed samples stay with the lot number for direct recheck.

Delta E reading	Sample point	Verdict
ΔE ≤1.5	Lid flat	Batch passes
ΔE ≤1.5	Side wall	Batch passes
Near 1.5	Zone recheck	Hue fault first
Sealed sample	By lot	Direct recheck

4. Colour Drift After Xenon-Arc Ageing

A Spec military black olive tan plastic protective case custom takes 500 h xenon-arc as the second colour check, with delta E ≤2.5 afterwards. Cut panels run alternating light and spray for 500 h, then the same points are re-read and the difference from the pre-age figure is the drift. Black drifts by surface chalking, green and tan by pigment lightfastness, so all three are balanced at the recipe stage. If 500 h lands near 2.5, check pigment data first, then whether 60 MPa left the skin porous.

Spec military black olive tan plastic protective case custom stacked closed on a factory floor, black shells with latches outward and production line behind

The 1.2 m drop and IP67 sit in the shell-structure recheck after colour verdicts, so age drift and assembly damage never share one sheet. Stacking 3 layers only checks post-load appearance, not the colour reading.

5. Matching Hardware Colour to the Shell

A Spec military black olive tan plastic protective case custom matches latches, handle and corner guards to the shell, since painted or natural hardware shifts by lot too. Against the shell standard, four latches are compared with the lid for lightness, guards with the side wall for hue; single pieces do not count, only the group. The 420 N clamp is unchanged, yet a one-step hardware gap makes the whole case look like two lots. Records follow the lot, and a new hardware supplier means a new sample.

Two tools govern this: the standard sample and the spectro. With both present, the colour number is aligned.

Conclusion

A Spec military black olive tan plastic protective case custom manages three-colour consistency as an injection parameter, not finished-part sorting: 600×440×260 mm outside and a 4.2 mm wall fix the datum, 2.0% masterbatch, four 190-230 °C zones and 60 MPa holding steady the melt, with delta E ≤1.5 and delta E ≤2.5 after 500 h as two repeatable verdicts. Black, olive and tan switch masterbatch only, samples are logged by point, and hardware is matched to the shell standard. JUNZHIJIA keeps masterbatch lots, zone curves and sealed shells on one batch card for colour-number traceability.