06/05/2026
Recommendation of Black Masterbatch for PP Cosmetic Caps
I. Product Application Background
PP has become the mainstream material for cosmetic caps due to its non-toxic, odorless properties, excellent chemical stability, and easy processing. To meet the core demands of cosmetic packaging—high-end appearance, environmental safety, long-term durability, and efficient injection molding—special black masterbatch must deliver high blackness, high gloss, low odor, no precipitation, and food-grade compliance, helping to produce outstanding and safe cosmetic caps.
II. Core Selection Principles
1. Safety & Environmental Priority
Compliant with RoHS, REACH, and FDA food-contact standards; free of heavy metals, plasticizers, and harmful substances; low VOC and low odor, suitable for direct cosmetic contact.
2. Appearance Performance
High blue-tone blackness with piano-black finish, smooth surface free of pits, flow marks, and color spots; achieves high-end mirror effect without spraying.
3. Processing Compatibility
Excellent compatibility with PP carrier, uniform dispersion, no screen clogging or color drifting; suitable for high-speed injection molding without affecting molding precision and structural strength.
4. Long-Term Stability
Light resistance, weather resistance, and anti-migration; no fading or precipitation during long-term storage, ensuring stable appearance and performance.
III. Recommended Black Masterbatch Models & Key Advantages
(I) High-End Mirror Grade: PP-1H Blue-Tone High-Gloss Black Masterbatch
1. Core Parameters
Special PP carrier, nano-dispersed carbon black, L value ≤ 23, b value ≈ -0.7, pure blue-tone high blackness, optimized carbon black content for efficient coloring.
2. Product Advantages- Premium Appearance: Mirror-smooth surface with spray-free piano-black finish, enhancing high-end cosmetic packaging texture.
- Safe & Compliant: Passes food-contact testing, odorless and non-precipitating, meeting strict cosmetic packaging standards.
- Smooth Processing: Excellent dispersion, no streaks or defects during injection; perfect compatibility with PP, no impact on precision structures such as caps and threads.
- Stable & Durable: Temperature resistance 160–280°C, UV-resistant and anti-aging, no fading or deformation in long-term use.
3. Application
High-end skincare and cosmetic caps, premium cosmetic packaging requiring superior appearance and environmental safety.
(II) General Efficient Grade: PP1089 Low-Odor Eco-Friendly Black Masterbatch
1. Core Parameters
PP carrier, high-purity carbon black formula, VOC ≤ 2.5, high purity, dedicated production line with no cross-contamination.
2. Product Advantages- Cost-Effective: Strong coloring power, low addition rate (usually 2%–4%), reduces production cost for mass production.
- Low-Odor & Eco-Friendly: Strict raw material purity control, no irritating odor, fully meets hygiene standards for cosmetic packaging.
- Stable Processing: Moderate fluidity, compatible with various PP injection machines, no precipitation or mold sticking, high yield.
- Balanced Performance: Full blackness, pure hue, good weather resistance for daily cosmetic storage and use.
3. Application
PP caps for mass cosmetics and personal care products, high-volume and high-efficiency injection molding.
(III) Anti-Migration Durable Grade: PP2203 High-Dispersion Black Masterbatch
1. Core Parameters
Special PP carrier, anti-migration formula, uniform carbon black dispersion, excellent temperature and chemical resistance.
2. Product Advantages- Anti-Migration & Anti-Precipitation: Optimized for cosmetic formulations; no color migration or additive precipitation during long-term contact with skincare and personal care products.
- Stable Mechanical Properties: Maintains PP cap toughness and strength, ensuring durability of repeated opening and closing.
- Fully Certified: Complies with global environmental regulations for cosmetic packaging, suitable for export products.
- Uniform Coloring: No color difference between thick and thin sections, no missing color or spots in fine structures, consistent molded appearance.
3. Application
PP caps for creams, lotions, and packaging in direct long-term contact with cosmetic contents.
IV. General Quality Assurance
1. Pure Formulation: All food-grade carriers and additives, no impurities or recycled materials, eliminating odor and safety risks.
2. Controllable Quality: Color difference ≤ ±0.5 per batch; strict testing of dispersion, temperature resistance, and consistent quality.
3. Technical Adaptation: Customizable formulas based on PP grade, injection process, and cap specifications for optimized processing and performance.
4. Full Compliance: Complete environmental test reports and food-contact certificates to meet domestic and export quality requirements.
V. Summary of Recommendations
- For high-end mirror appearance and premium texture: choose PP-1H Blue-Tone High-Gloss Black Masterbatch for luxury cosmeti
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