Pain Point 1: Yellowing & Insufficient Color Stability

Under high-energy UV or high-temperature conditions, traditional photoinitiators easily produce side reactions leading to color shifts and yellowing. Pale yellowing in clear coatings and graying in white inks have long been concerns for ink and coating manufacturers.

P-4075 utilizes a dual-effect hybrid structure of Oligomeric Hydroxyketone and Phosphine Oxide, combining stability with high reactivity:

• Disperses energy absorption to reduce radical aggregation and thermal reactions, inhibiting yellowing.
• Dual-functional radical generation allows surface and deep curing to proceed simultaneously.
• The polymeric chain stabilized structure effectively prevents thermal degradation and reduces odor.

Pain Point 2: Incomplete LED Curing & Surface Tackiness

LED curing has become the industry mainstream. However, because its wavelength is concentrated at 365–405 nm, many traditional photoinitiators have insufficient absorption in this range, causing incomplete curing or surface tackiness.

P-4075 possesses a broad absorption structure (200–470 nm), corresponding to UVA, UVB, and UVC sources simultaneously.

• Hydroxyketone Structure: Instantly generates radicals upon light absorption to rapidly initiate surface polymerization, shortening drying time and eliminating tackiness.
• Phosphine Oxide Structure: Strong absorption for long-wavelength light (especially above 365 nm), enabling energy to penetrate deep into the coating to ensure full cross-linking.

Pain Point 3: Environmental & Regulatory Challenges

Modern formulations must simultaneously consider performance, sustainability, and user experience. Traditional photoinitiators often impact production environments and end-product odor due to high volatility and strong scents.

P-4075 utilizes Chitec's proprietary eco-friendly process, using no harmful solvents throughout the entire production.