How do you ensure color consistency between batches?
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- Jul 14,2026
CharmingTattoo ensures batch-to-batch consistency through standardized procedures, raw material testing, in-process QC, and spectrophotometer verification at every stage.
4-Stage Quality Control Process
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.
Quality Data
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.