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What Is Photochromic Ink? Daylight-Change Ink Guide

HomeNews › What Is Photochromic Ink? Daylight-Change Ink Guide
2026-08-04 published
Photochromic ink (gray): develops color under daylight, returns to milky white when covered
SJH photochromic ink (gray): develops color under sunlight, covered or stacked areas remain milky white.

Photochromic ink (daylight-change ink) combines anti-counterfeiting, decoration and fun.

What It Is

Colorless or light in the dark, develops color within seconds under sunlight or UV, and slowly returns to its original shade when light is removed.

Key Features

  • No equipment needed
  • Repeated color change, stable performance
  • Custom colors
  • Screen, gravure, flexo, pad, spray printing

Applications

Security hang tags, cosmetics packaging, tickets, souvenirs, cultural products.

SJH Ink offers custom photochromic ink with free samples. Tel 13510998453, www.sjhink.com.

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