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China Suppliers Factory Hot Sales Photochromic Ink for Screen Printing - Sunlight Color Change Feature
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.
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.
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.
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.
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.
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 the color-changing ink work?
Under ultraviolet (UV) light irradiation, the photochromic pigments inside the ink undergo a chemical structure change, shifting from colorless to colored or from one color to another. This process is completely reversible; once the light source is removed, the ink returns to its original state.
On what materials can this ink be printed?
Due to its excellent flexibility and durability, this color-changing ink is highly versatile and suitable for a wide range of substrates, including fabrics (sportswear, outdoor gear), paper, and plastics.
What are the environmental and safety standards of the ink?
The ink is typically developed using water-based formulas, making it environmentally friendly. For safety, it should be used in well-ventilated areas, avoiding direct skin contact and inhalation of dry dust.
What is the recommended screen mesh and curing temperature for printing?
A high-mesh screen, such as 32 lines/cm, is recommended for fine patterns. After screen printing, the ink must be cured and dried at temperatures ranging from 60°C to 100°C to ensure optimal color-changing performance.
How should the color-changing ink be stored to maintain its durability?
To maintain its chemical stability and color-changing properties, the ink should be stored in a cool, dry, and well-ventilated area, protected from extreme heat, 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
Food Grade 100 Micron Polyamide Nylon Filter Mesh For Soya Milk :
1.30-100m/roll in PVC bag
2.2-8 rolls per carton
3.waterproof bags outside
4.package belt strengthen
