https://www.avient.com/sites/default/files/2025-06/ColorMatrix Joule Tech Bulletin.pdf
As a major supplier of additives and colors to the plastics industry, ColorMatrix has, in the course of supporting its customers worldwide, developed best practice guidelines for its products which it provides as a free service.
CAUSE AND EFFECT DIAGRAM Methods Machines Materials Manpower Variable energy saving during SBM Maintenance instructions Operating instructions Faulty Operator Job spec NIR Lamps SBM Type/Design vPET reheat content vPET formulation rPET blend/quality Temperature recording Temperature measurement probe External temperature Faulty Incomplete Inappropriate Incomplete Incomplete Different Different Different Manual Different Variable Variable Variable Training New Faulty Alignment Same Throughput Too many tasks Time conflict Age/intensity variable Set up conditions Configuration - When starting to process a new resin, first run through new preforms for 15 minutes at ‘standard’ conditions to establish steady state conditions prior to any process optimization - Slowly start to reduce preform blowing temperatures until failures are present (visible pearl internal wall or pearl feet) - Increase blowing temperatures until defects are eliminated - QC check bottle quality for acceptance versus established tolerances - Change the power consumption profile in the ovens for early heat and longer sink times but ensure overall temperatures do not exceed cold crystallization temperature - Repeat temperature reduction stage and then defect elimination stage to test if further optimization is possible - Recheck QC bottle quality for acceptance versus established tolerances - Log all process parameters and create new specific ‘recipe’ for future use