what's the spot UV for the eyelashes packaging box ？

What is Spot UV?

UV coating, in general, is a type of finish or digital embellishment that uses polymer resin and ultraviolet light to add a glossy, protective layer to print materials. The coating hardens and dries when exposed to ultraviolet radiation to create a hard and shiny finish. UV coating enhances the design and durability of packaging and paper products.

On the other hand, spot UV coating is a UV coating technique. It is a printing process that can be used to add extra shine and emphasis to certain words or images on a printed piece. The coating application is more targeted, meaning only specific spots or areas are covered.

It's a great way to make text or logos pop, and it can really enhance the overall look of your finished product.

Spot UV is popular among businesses and manufacturers for its ability to add visual interest and sophistication to printed materials. Thanks to its versatility and striking results, spot UV coating is one of the most commonly used embellishments in the printing industry.

The Spot UV Printing ProcessIn standard UV coating, sheets are fed into machines with rollers that coat the sheet with UV varnishing. The sheet is exposed to infrared and UV lamps that instantly dry the coating.

In the spot UV process, the client provides a mask file with instructions on where to apply the coating. The mask files cannot contain gradients. Pixels must be black and white. Blurs and shadows are a big no-no since the design should only have clean, sharp edges. The printer will follow these lines and edges to the very last detail.

Next, the UV varnish is spread across a die-cut template. A very thin film is placed over the sheet to ensure that only the specific spots or areas of the design are coated to create the desired contrast.

The key is to keep the specified spots minimal or fewer than the entire area. Typically, designers concentrate spot UV on the message or artwork, leaving the rest of the surface unembellished. Too much spot UV can make the design look cluttered or unnecessarily over the top.