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  • Varnishing and Spot UV

    As a leading China paper box supplier, Shanghai DE Printed Box produces custom printed paper box with the glossy varnishing, matte varnishing and spot UV varnishing.

    spot UV printed paper box
    When the Spot UV Printed Paper Box is Assembled
    printed paper box with spot UV
    When the Paper Printed Box With Spot UV is Flat

    The printed paper box above is a custom paper box with the spot UV varnishing for the line patterns, which make the package very high end and luxury.

    What is Varnishing

    A packaging varnish ia a liquid coating applied to printed box surface after the coated paperboard is offset printed.

    Below is a luxury matte red printed rigid box with the high impact spot UV varnishing for the logo image. The potential customer will like it at a glance.

    spot UV printed rigid paper box with matte red color

    The matte red color rigid paper box has the spot UV varnishing for the logo.

    Special Advantages

    • 1. The printing ink dries more rapidly, allowing for faster production and handling.
    • 2. The coating preserves the ink beneath it, making it resistant to rubbing and preventing it from smudging or fading even under rough handling conditions.
    • 3. The coating provides a uniform and smooth texture to the box's surface, creating a pleasing tactile experience.

    Varnishing Types

    According to the printing surface gloss level, the varnishing is divided into 3 types, glossy varnishing, matte varnishing and satin varnishing.

    Glossy Varnishing

    A glossy varnish gives the printed box a smooth, shiny, and lustrous surface. The surface efficiently reflects light, resulting in a bright and vibrant appearance, particularly in the presence of sunlight. As a result, a printed box with a glossy varnish typically exhibits brilliant and vivid colors.

    Matte Varnishing

    A matte varnish imparts a non-glossy, even and smooth surface to the printed box that is devoid of any shine. This particular finish gives the printed box a luxurious appearance and is highly sought-after in the packaging industry. The matte finish is especially popular in cosmetic and jewelry packaging boxes where the aim is to create a perception of luxury and high-quality among potential customers.

    high gloss varnished packaging box, glossy varnished printed box
    Printed Paper Box With Glossy Finish
    matte printed packaging box with spot UV
    Printed Paper Box With Matte Varnishing

    The box on the right is a high gloss vanished printed box made of the E flute corrugated board. One the left is a CD paper paper packaging folder with the matte varnishing and spot UV. It is made of the 24pt 400GSM SBS paperboard.

    Silk or Satin Varnishing

    A satin varnish gives the printed box surface a neither high gloss or matt, but the middle ground look.

    UV Varnishing

    Also called UV coating, UV varnishing is a process for achieving a thicker and even more striking type of coating on the printed box surface. The printed color appears noticeably richer and vibrant. It also adds the benefit of the fast drying of print on the production line due to the ultra-violet drying process.

    The UV varnishing divided into 2 types, all-over UV varnishing and spot UV varnishing

    All-over UV Varnishing

    With the all-over UV varnishing, the UV inks are applied all over the printing surface. The high gloss level can rival and replace the glossy laminating. In the meantime, it provides the excellent protective qualities and a pleasant tactile experience to the printing surface.

    Spot UV Varnishing

    With the spot UV varnishing, the UV inks are only applied to the specific area of the printing surface to highlight specific texts or images, particularly the logo. The Spot UV varnishing on the brand logo is widely used for the luxury paper bags, boxes, gift boxes, cosmetic packaging boxes, jewelry boxes, and some retail packaging boxes.

    The box above is a litho laminated packaging carton for the electronic products. On the surface of the printing, the monitor is Spot UV Varnished to add a striking beauty to the printing.

    Varnishing Application

    As a leading China paper box supplier, Shanghai DE Printed Box produces the custom printed paper boxes with the various varnishing options. The spot UV is widely used in the cosmetic paper boxes.

    Coating|Varnishing Purposes

    There are three primary objectives for applying a coating or varnish finish to the surface of a printed paper box.

    Firstly, it provides superior protection to the inks from external contaminants such as dirt, smudges, fingerprints, and scratches.

    Secondly, some coatings can increase the scuff resistance of the printing surface of the box, making it more durable and long-lasting.

    Finally, by applying a glossy or matte finish, the box can attain a visually stunning and captivating appearance, greatly enhancing its aesthetic appeal.

    collapsible rigid box with spot uv pattern
    Spot UV Pattern on Collapsible Rigid Paper Box

    This is a spot UV varnished collapsible rigid box. The box has the matte black laminating. On the surface of the laminating is the spot UV varnish triangle pattern, very pretty.

     foldable collapsible rigid box with spot uv pattern
    Collapsible Rigid Paper Box

    This is inner side of the collapsible rigid box. It is flat shipped during the transportation. Also the box has 2 magnets for the box seal and closure.

    Difference Between Varnishing, AQ Coating and UV Coating

    Coating Options

    There are three common types of protective coating used for printed packaging boxes: varnishing, aqueous coating, and UV coating.

    Varnishes were the first type of coating introduced to the printed packaging industry. They are essentially transparent inks without pigment and are applied during the printing process like common CMYK inks. Varnishes can be glossy, matte, or satin, and they are typically the least expensive of all the coating options available.

    However, most varnishes are VOC-based, which is not eco-friendly. Another drawback of varnishing is that the varnish takes a long time to dry on the printing surface.

    Aqueous Coating was developed in the late 1970s and is also referred to as AQ coating. Aqueous coating is water-based, with a water content percentage of 30-40%. It is an environmentally friendly coating option because it doesn't cause VOC emissions like varnish.

    Normally, AQ coating is applied to the entire sheet, as opposed to spot coating (spot UV). However, it often costs twice as much as varnish and takes more time to dry than UV coating.

    Normally, aqueous is usually applied to the entire sheet as opposed to spot coating (spot UV). On the down side, aqueous often costs twice as much as varnish. And it takes more time to dry than the UV coating.

    UV coating is the most popular coating option for folding paper boxes because it has the highest gloss and is rub-resistant. UV coating starts as a clear liquid that is cured (dried) instantly with ultraviolet light radiation. It comes in a wide range of sheens, and the most common usage is spot UV varnishing, which is applied partially to highlight the brand logo of the company.

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