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Photochromic dyes (also known as photosensitive or photochromic dyes) are a class of magical functional dyes that can reversibly change color under different wavelengths and intensities of light.

As a professional manufacturer in the field of functional colorants, Aolong Chemical will showcase a variety of products and share technological innovation achievements with global customers and partners.

The company's new factory is officially in operation, greatly increasing production capacity.

Aolong Chemical moves forward steadily and reaches new heights.

Thermochromic pigments are smart materials that display different colors with temperature changes. They are widely used in temperature indicators, anti-counterfeiting labels, and fashion design.

With the global economy gradually recovering and environmental awareness deepening, the pigment industry, after facing challenges in 2023, is experiencing a recovery and structural upgrade in 2024.