How do you ensure color consistency between batches?

Update Time:2026/7/14

CharmingTattoo ensures batch-to-batch consistency through standardized procedures, raw material testing, in-process QC, and spectrophotometer verification at every stage.

1

Raw Material Inspection — Each pigment powder, carrier oil, and additive tested for purity, particle size, and color.

2

Formulation Verification — Each batch follows the master formula with precise weighing under controlled conditions.

3

Production Monitoring — During production, samples taken at intervals for real-time quality checks.

4

Spectrophotometer Testing — Every batch compared against reference within acceptable Delta E range.

Delta E < 1.0: Color difference below industry standard — visually indistinguishable.

ISO9001 facility: Documented procedures with full batch traceability.

Retained samples: Every batch retained for 3 years for reference.

COA included: Certificate of Analysis with batch-specific test results.

CharmingTattoo — your trusted OEM/ODM PMU pigment manufacturer since 2002. Request a quote or browse our product catalog.

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We are a pmu and microblading manufacturer with 20 years of production experience.