Cabot BLACK PEARLS 4350 Carbon Black - FDA Food-Contact Pigment Black for Plastic Film Packaging

Full Name: BLACK PEARLS 4350 Food Contact High-Purity Pigment Carbon Black
Pass FDA & EU food contact material tests, for food packaging and low-odor eco plastic coloring.

Core Technical Specs

N₂ Specific Surface Area: 116 m²/g
DBP Oil Absorption (OAN): 70 cc/100g
Primary Particle Size: 28 nm
ASTM Tinting Strength: 121 %
Volatile Content: ≤1.0 %
Total PAHs: ≤0.5 ppm
Benzo[a]pyrene: ≤5 ppb
Ash Content: ≤0.3 %
Physical Form: Ultra-fine granular powder
Standard Package: 12.5kg / bag
CAS No.: 1333-86-4
Certifications: FDA 21CFR178.3297, EU Regulation 10/2011

Core Advantages

Strict limits on PAHs & Benzo[a]pyrene, compliant with global food contact regulations;
Even particle size, free of specks after extrusion & sand mill dispersion;
Mild oil absorption keeps masterbatch viscosity stable without hurting plastic fluidity;
Good thermal stability, no discoloration or precipitation under high injection/blow molding temperature;
Consistent blue black tone with small batch color difference, uniform product appearance.

Main Applications

Core Fields: Food blow film packaging, thermoformed food tray, food-contact plastic fittings
Compatible Fields: Low-odor modified plastic, low-VOC odorless decorative paint

Usage Notes

Only used for outer substrate of food-contact articles, forbidden to add into raw food;
Resins & additives of the whole formula must also meet food compliance standards to pass finished product inspection;
Seal & store dry; dampness causes caking and weakens dispersion & tint uniformity;
Dust-free & anti-static workshop equipment required during production to reduce powder agglomeration defects;
Do not store together with strong oxidants to avoid purity contamination.