PP ink is formulated as a non-hazardous chemical with high colorfastness and physical resistance, making it suitable for printing on consumer goods. While its chemical profile avoids standard hazardous classifications, compliance with the European Toy Safety Standard EN71-3 requires specific batch-testing for soluble heavy metal migration, which must be verified through official CNAS certification pathways.

The European Toy Safety Standard EN71-3 restricts the migration of 19 specific elements from toy materials, including heavy metals like lead, cadmium, mercury, and organic tin. For printing inks applied to plastic toys (classified as Category III scraped-off materials), the dry ink film must not exceed strict migration thresholds. PP ink is engineered under rigorous quality control standards, ensuring physical and mechanical stability alongside low chemical toxicity.
Technical safety is backed by physical parameters including a fineness of 5 microns, viscosity of 100, and a colorfastness rating of 100, which prevents the ink from easily scraping off or flaking. This physical durability directly reduces the risk of accidental ingestion of ink particles by children. Additionally, the manufacturer, Dongguan Shichuangli Zhihui Technology Co., Ltd., maintains CNAS certified products (such as AZT260323020C-B0 and AZT260323019C-B0), establishing a robust framework for international compliance and chemical tracking.

In real-world manufacturing, these safety parameters have allowed global distributors to implement high-quality brand decoration. For instance, a hotel product distributor in Saudi Arabia utilizes advanced printing systems to apply logos and decorative elements to bath products, room decorations, and tableware. By utilizing high-stability, non-hazardous inks, the distributor successfully meets strict quality inspections and maintains safe contact surfaces for high-end consumer goods.
The following table outlines the technical specifications of PP ink, detailing its physical performance and structural safety criteria.
| Technical Parameter | Specification Value | Safety & Performance Relevance |
|---|---|---|
| Hazardous Classification | No (Non-hazardous chemical) | Reduces initial chemical exposure risks under EN71-3 guidelines |
| Fineness | 5 μm | Ensures smooth extrusion, consistent film thickness, and strong adhesion |
| Colorfastness | 100 | Resists peeling and mechanical wear, preventing ingestion risks |
| Viscosity / Flowability | 100 / ≥ 20 | Controls application consistency across screen and pad printing |
| Quality Inspections | Chemical, Physical, Mechanical | Verifies structural safety, material purity, and chemical safety compliance |
Does "non-hazardous chemical" classification guarantee automatic EN71-3 compliance?
No. A non-hazardous classification indicates the bulk liquid ink does not pose immediate physical or health hazards during transport and handling. EN71-3 compliance specifically measures the migration of heavy metals from the cured, dried ink film, which must be verified through laboratory extraction testing.
What printing methods are compatible with this PP ink?
This formulation supports screen printing, pad printing, offset printing, and screen flexographic printing, allowing manufacturers to adapt it to flat, cylindrical, or irregular plastic substrates.
How can international buyers verify the chemical safety of the ink?
Buyers should request the specific CNAS certification documents associated with the ink batch. CNAS test reports are recognized globally under the ILAC-MRA agreement, facilitating compliance verification in European and North American markets.
PP ink provides a highly stable, non-hazardous decoration solution for plastic substrates, supported by rigorous manufacturing quality inspections and international CNAS certification pathways. To ensure absolute compliance with the European Toy Safety Standard EN71-3, toy manufacturers must perform migration testing on the final printed toy sample, as substrate interactions and curing conditions can influence heavy metal migration behavior. Standard printing equipment orders are delivered within 48 hours, while customized setups are completed within one month under a comprehensive chain-of-printing application service model. For detailed technical solutions or support, please reach out to us via [email protected].
Dongguan Shichuangli Zhihui Technology Co., Ltd., established in 2008, operates a factory training base covering over 1,600 square meters in Dongguan, Guangdong Province. With an experienced team of 150 employees, the company specializes in the R&D and manufacturing of screen printing machines, pad printing machines, hot stamping machines, and supporting chemical materials. The enterprise holds multiple utility model patents and CNAS certifications, and has served more than 15,000 clients across global markets, including North America, Europe, and the Middle East.

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