What is the difference between optical grating and reverse UV printing?

1. 1. What is Optical Grating?
2.  

Optical grating, also referred to as light diffraction or lens embossing, is a technology whereby micro-patterned textures (grating lines) are stamped onto a given material's surface using a special die or mould. These patterns refract light, creating a moving rainbow or 3D-like effect when viewed from different angles.

Visual effect: iridescent holographic shimmer

Touch: is sometimes a bit raised or rough

Ideal in: Counterfeit prevention enhancement, luxury cosmetics, perfumes and gift sets

Process: hot stamping, or grating mold embossing

It reflects the light and gives it a dynamic, luxurious touch that is subject to motion.

2. What is Reverse UV Printing?

The contrast printing technique called Reverse UV Printing combines glossy and matte finishes in a single design. It begins with a gloss-covered surface (such as lamination or varnish), onto which UV varnish is selectively sprayed using screen printing. Once cured, a matte pattern will appear on a glossy background, or vice versa.

Element of appearance: Matte and gloss have a slight contrast in visual appearance

Touch: Velvet with a little bit of texture Feeling: Velvet with a little bit of texture

Best to use: Modern packaging, accentuating the logo designs and effects of texture

Process: Screen print UV oil over gloss or matte lamination

It is both classy and sophisticated, making it perfect for brands that want an understated elegance.

3. Key Differences at a Glance

4. Which Should You Choose?

Optical grating is ideal if you want something that is graphically active and beautiful to look at. Hence, a high-end package, limited edition or high-priced product should feature optical grating.

Select reverse UV printing if you want a low-key, designer appearance with a high-brow to low-brow texture message.