KT-95407 Mauve to Yellow multichrome pigment

Product Overview — Multichrome Color Shift Mechanism

In our KT-9000 series, we engineered KT-95407 to produce one of the longest color travels in the portfolio: four distinct hues across a ~60° viewing angle sweep. The effect relies on a precisely controlled stack of inorganic oxide layers — titanium dioxide for interference, iron oxide for absorption modulation, and silica for refractive-index tuning. As incident light strikes the platelet at different angles, constructive and destructive interference shift the dominant wavelength from violet (mauve) through red and orange to yellow.

We see the strongest color purity when the pigment is applied over a black or very dark substrate; lighter bases dilute the shift by reflecting broad-spectrum white light. In formulation trials, a loading of 3–6% (by weight of clear binder) typically delivers a vivid multichrome effect in automotive 2K urethane systems, while nail lacquers and screen inks may use 8–12% depending on film thickness.

Technical Specifications

Heavy Metal Limits

KT-95407 meets stringent heavy metal specifications suitable for cosmetic and coatings use:

View our complete chameleon pigment catalog: Kolortek Chameleon Pigment Catalog

Application Guide — Where KT-95407 Performs Best

Automotive Custom Finishes

This is where multichrome pigments like KT-95407 truly shine. We see it used on motorcycle tanks, custom car wraps, helmet graphics, and show-car panels. The four-color shift gives a "living paint" effect under sunlight and showroom lighting. Key formulation notes:

• Apply over a black or dark-gray basecoat for maximum color saturation.
• Use a high-gloss clear topcoat (2K polyurethane or UV-cured acrylic) to protect the pigment and amplify depth.
• Typical loading: 3–6% by weight of clear binder; higher loadings intensify the shift but may reduce leveling.

Cosmetics — Nail Art & Eyeshadow

The INCI declaration (Mica, Iron Oxide, Silica) and low heavy-metal content make KT-95407 compatible with color cosmetics regulations in most markets. In our experience, nail lacquer formulators prefer the 10–70 μm grade because the platelets orient well during brush application, producing a smooth, uniform shift. Eyeshadow and lip-gloss formulators sometimes blend KT-95407 with transparent iron oxides to shift the base hue further into the red or plum range.

Luxury Packaging & Security Printing

The dramatic mauve chameleon pigment effect serves both aesthetic and functional roles. High-end spirits, cosmetics, and electronics brands use it to differentiate premium SKUs, while security printers incorporate it into banknotes, certificates, and authentication labels. The four-color shift is difficult to replicate with standard CMYK or even six-color presses, making it a practical anti-counterfeiting feature.

Formulation & Processing Tips

Dispersion: KT-95407 disperses readily in most solvent-based and water-based binders. Avoid high-shear mixing (e.g., bead mills at >3,000 rpm for extended periods), which can fracture the mica platelets and dull the color shift. Gentle stirring or low-speed planetary mixers preserve platelet orientation.

Substrate requirement: The interference effect is only visible when the pigment sits over a dark, non-reflective base. Over white or metallic substrates, the color shift becomes muted or disappears entirely. If a lighter base is required, consider blending KT-95407 with a small amount of transparent carbon black or dark-blue absorption pigment to create a tinted clear coat.

Topcoat protection: Always apply a clear topcoat in automotive and industrial coatings. The topcoat seals the pigment, protects against UV degradation (though the inorganic oxides are inherently light-fast), and enhances the optical depth of the color shift.

Storage & Handling

Store KT-95407 in a cool, dry, well-ventilated area. The pigment is odorless and chemically stable, but like all fine powders it can generate dust during handling. We recommend:

• Use local exhaust ventilation or dust masks (covering nose and mouth) during weighing and blending.
• Wear gloves and eye protection; if pigment contacts eyes, flush gently with water.
• Avoid creating aerosols or allowing dust to accumulate on surfaces.

Frequently Asked Questions

What is the particle size range of KT-95407, and why does it matter?

KT-95407 has a particle size distribution of 10–70 μm, with a median (D50) of 24–28 μm. This mid-range size delivers strong color shift without excessive graininess in thin films. Larger particles (e.g., 75–175 μm) produce a more glittery, sparkle effect, while finer grades (5–25 μm) give smoother, more subtle shifts. The 10–70 μm grade balances impact and smoothness for most coating and cosmetic applications.

Can I use KT-95407 over a white or light-colored base?

The multichrome effect relies on a dark substrate to eliminate competing white-light reflection. Over white or pastel bases, the color shift will be faint or invisible. If you must work with a lighter base, pre-tint the basecoat with a small amount of transparent black or dark-blue pigment to create a tinted-clear effect, or apply KT-95407 as a concentrated "flip" layer over a mid-tone gray primer.

Is KT-95407 approved for use in cosmetics?

KT-95407 carries an INCI name (Mica, Iron Oxide, Silica) and meets heavy metal limits consistent with cosmetic raw materials (As <2 ppm, Pb <10 ppm, Cd <3 ppm). However, specific market approvals (EU, FDA, China NMPA) depend on your finished-product formulation and regional regulations. Contact our technical team for batch-specific documentation and regulatory support.

How does KT-95407 compare to standard pearl or interference pigments?

Standard pearl pigments (e.g., KT-100 Silver White) produce a single luster color — silver, gold, or red — that remains constant across viewing angles. Interference pigments (e.g., KT-200 series) show a two-color flip, typically a face color and a complementary transmission color. KT-95407 is a multichrome color shift pigment that travels through four distinct hues (mauve, red, orange, yellow) as the angle changes, making it the most dynamic option for custom finishes and premium cosmetics.

Contact our technical team to discuss formulation requirements for your specific application.