PET Bottle Color Matching
The Challenge
A pharmaceutical packaging company required color-coded PET and HDPE bottles that met the industry's strictest safety and traceability standards. Color was used for drug identification, so any inconsistency or compliance gap carried serious regulatory risk.
- USP Class VI biocompatibility for every color formulation
- Strict color consistency for reliable drug and dosage identification
- Full traceability documentation including drug master file (DMF) support
- Colors must withstand PET processing at 280°C without degradation
- Regulatory audits required complete, auditable quality records
Our Solution
MHK Color provided USP Class VI compliant masterbatches with carrier resins matched separately for both PET and HDPE, supported by a dedicated pharmaceutical QC protocol.
- Matched carrier resins for both PET and HDPE for optimal dispersion
- Spectrophotometric color verification performed on every production batch
- Full regulatory documentation including DMF support data provided
- Low-migration, biocompatible pigments locked into the polymer matrix
- Dedicated QC protocol engineered for zero color-related rejections
Results Achieved
The client received 100+ color-matched formulations meeting all pharmaceutical standards, with flawless regulatory performance over 18 months of continuous production.
- 100+ color-matched formulations delivered and validated
- Zero color-related quality rejections over 18 months
- Regulatory audit passed on the first attempt
- A repeatable QC framework the client now uses for all new colors
Key Results
Products Used
Custom Masterbatch Solutions
Tailored masterbatch formulations for specific polymer, color and performance requirements.
Color Masterbatch
Standard stock color masterbatch in 12 color families for polyolefin applications, backed by 25 years of formulation expertise and a 30,000+ color database for all polymer types, with a complete QC process ensuring color consistency.
White Masterbatch
White masterbatch with 20% to 75% rutile titanium dioxide, engineered for optimal opacity and outdoor weather resistance.
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