China Suppliers Factory Hot Sales Photochromic Ink for Fabric Printing and Screen Printing Under UV Light
Product peculiarity
Color change
Under ultraviolet irradiation, color-changing ink can change from colorless to colored, or from one color to another. This change is reversible, that is, after the light disappears, the ink will return to its original color.
Environmental protection
Usually water-based formula, friendly to the environment.
Flexibility
The printed coating has good flexibility and is suitable for use on flexible substrates such as fabrics.
Durability
The printed pattern has good washable resistance and wear resistance.
Wide application
suitable for a variety of substrates, including paper, fabric, plastic and so on.
Printing process
Ink preparation
Color-changing inks are usually made by mixing color-changing pigments (such as spiroxide, naphthalene and pyranes, etc.) with a transparent substrate. The pigment particle size is usually between 2-5 microns to ensure good dispersion and printing effect.
Screen selection
High mesh mesh (such as 32 lines /cm) is usually used to ensure the fineness of the pattern.
Printing process
The ink is printed on the substrate using screen printing technology. After printing, it usually needs to be dried at a certain temperature. In order to achieve the best discoloration effect, the thickness and curing conditions of the ink need to be controlled when printing.
Curing conditions
Color-changing inks after printing usually need to be dried at 60°C to 100°C. During the curing process, the intensity and irradiation time of ultraviolet rays will affect the color-changing properties of the ink.
Aging test
In order to evaluate the durability of color-changing inks, artificial aging tests are often performed to simulate outdoor light conditions.
Product details
Environment and safety
Environmentally friendly
Color-changing inks are usually water-based formulations that have less impact on the environment.
Safe use
Use in a well-ventilated environment to avoid contact with skin and inhalation of dust.
Storage conditions
Should be stored in a cool, dry, ventilated environment, avoid high temperature and humidity.
Application case
Smart labels
Smart labels for the packaging industry that can be used as anti-counterfeiting labels or functional coatings.
Smart textiles
Used for printing smart textiles, such as sportswear, outdoor equipment, etc.
Anti-counterfeiting mark
Used to make anti-counterfeiting mark to improve product security. Through the reasonable selection and use of color-changing inks, the application effect and quality of screen printing in the fields of smart labels, anti-counterfeiting labels and smart textiles can be significantly improved.
Frequently Asked Questions
How does color-changing ink work?
Under ultraviolet (UV) or sunlight irradiation, the photochromic pigments inside the ink absorb light energy and undergo a chemical structure transition, causing the ink to change from colorless to colored or from one color to another. This change is fully reversible.
Is this color-changing ink environmentally friendly?
Yes, our color-changing inks are formulated with a water-based base, making them eco-friendly, low in VOCs, and safe for standard packaging and textile manufacturing.
On what substrates can this ink be printed?
Thanks to its high flexibility and excellent adhesion properties, this ink is suitable for a wide variety of substrates including paper, fabrics, plastics, and other flexible materials.
What are the recommended curing temperatures?
After screen printing, the ink needs to be dried and cured at temperatures between 60°C and 100°C. Exact temperature settings may vary depending on the substrate material used.
How should I store the color-changing ink?
To preserve its color-changing properties, store the ink in a cool, dry, and well-ventilated space. Avoid exposure to high temperatures, high humidity, and direct sunlight when not in use.
Industry specific attributes
Material |
100% Polyester |
Weave Type |
Plain |
Elasticity |
low |
Printing |
Polyester Screen Printing |
Monofilament Style |
Yes |
Product Name |
Polyester Silk Screen Printing Mesh |
Color |
White Yellow |
Length |
50m/roll |
Application |
Screen Printing Industry |
Thickness |
46-693um Printing Mesh |
Roll width |
60-368cm |
Feature |
Heat Resistance |
Aperture |
31-1300micron |
Packaging Details
