DDGRAF Verniz UV / LED

Flexography · Calender · Offset · Screen Printing

DDGraf UV Varnishes are formulated with high-quality resins and state-of-the-art photoinitiators, guaranteeing instant curing under ultraviolet radiation. Developed to meet the most demanding requirements of the graphic arts industry, they offer excellent adhesion, flexibility, and chemical resistance on paper, cardboard, plastic films, and special substrates.

UV Glow

The UV gloss finish varnish provides a highly reflective and intensely luminous surface, enhancing print colors and giving the final product a premium and sophisticated look. It forms a hard protective film with excellent resistance to scratches, abrasion, moisture, and chemical agents commonly encountered in the handling and storage of packaging. Ideal for packaging cosmetics, food, beverages, promotional materials, and any application where visual appeal is crucial to the purchase decision.

UV Fosco

Matte UV varnish delivers a smooth, velvety, low-reflection finish, widely used in the production of premium packaging, book covers, and labels that require a distinctive feel and understated elegance. Beyond its attractive visual aspect, it offers solid mechanical and chemical protection to the substrate. The contrast between glossy and matte areas—an effect known as drip coat—is one of the most valued applications in the publishing and luxury markets, and DDGraf varnishes were developed to guarantee this combination with precision and stability.

UV Primer

UV Primer acts as a surface preparation layer, increasing the receptivity and adhesion of inks and varnishes on low surface energy substrates, such as non-porous plastic films and synthetic materials. Essential for ensuring the quality of direct digital printing on hybrid lines. Suitable for different machine and process configurations.

UV Bula

Bula UV varnish is specifically developed for the production of pharmaceutical labels and foldable leaflets, guaranteeing high-definition text printing even on multiple layers and very low substrate grammages. It provides excellent flatness after curing, without paper deformation, enabling the printing of micro-letters and technical information with complete legibility. It meets the regulatory requirements of the pharmaceutical industry for surface finishing of drug labels and packaging.

UV Scratch Off — Scratch Card

UV Scratch Off varnish is a specialized product for producing scratch-off areas on lottery tickets, gift cards, promotional coupons, and any material requiring information concealment via a removable layer. The UV film securely covers the printed area and is easily removed by the user with a coin or similar object. Formulated to ensure complete optical coverage, without accidental transparency, with a clean and uniform scratch, leaving no residue or damage to the underlying substrate.

UV Ribbon

UV Ribbon varnish is specifically formulated for labels that require subsequent printing with a thermal transfer printhead (TTR). The surface treated with this varnish accepts the printing of barcodes, expiration dates, batch numbers, and variable data with adequate quality and adhesion, without compromising the anchoring of the transfer ink. Compatible with the main TTR printing technologies on the market, it is widely used in logistics, food, retail, and product traceability labels.

Application Methods

Flexography

DDGraf UV Flexographic Varnish is developed for application in narrow-web, modular, and center-drum flexographic printing presses, being the dominant finishing method in the production of self-adhesive labels, tags, and flexible packaging. Its low viscosity ensures uniform transfer through the anilox system, complete coverage, and faithful reproduction in solid and fine-screen areas.

UV technology allows for immediate curing under a lamp or LED system, enabling high-speed production without ventilation or drying time restrictions. DDGraf flexo varnishes offer excellent compatibility with BOPP, PET, PE films and treated papers, as well as suitable slip properties for folding, cutting and automated label application processes.

Calandra

DDGraf Calender UV Varnish is formulated for application in UV calender machines (manual and automatic) and in offset machines equipped with a dampening bath adapted for varnish. It is widely used in the finishing of covers, cards, cardboard and duplex cardboard packaging, where high gloss with a smooth, mirrored surface and high visual impact is desired.

The UV calender applies varnish in uniform, thick layers, and the instant UV curing generates a rigid film with high hardness and exceptional gloss. The DDGraf calender line covers viscosities from 30 to 100 seconds, allowing for fine adjustment according to machine speed and substrate type.

Offset

DDGraf UV Offset Varnish is developed for application via the inking system of offset printing presses, integrating into the production process without the need for a dedicated varnishing unit. With viscosities ranging from 200 to 900 seconds, the line covers everything from smaller machines to large-format offset presses, guaranteeing homogeneous application and uniform curing.

Available in versions for conventional paper and cardboard, for plastic substrates such as PVC, PS and Vinyl, as well as a matte version, the DDGraf offset line provides a finish with excellent adhesion, scratch resistance and compatibility with post-printing processes such as cutting, creasing, folding and gluing.

Screen printing

DDGraf UV Screen Printing Varnish is designed for use in automatic, semi-automatic, and manual screen printing machines, being the only method that allows precise control of the varnish layer thickness – simply by varying the thread count of the screen used. This opens up unique finishing possibilities, such as embossing, three-dimensional effects, and special applications like Scratch Off.

Important:

All information contained herein is the result of our experience and provided in good faith. We suggest conducting preliminary tests to verify the product's effectiveness in relation to the desired results. For any questions or suggestions, please contact the Technical Department of Ddgraf Ind. E Comércio De Tintas Gráficas LTDA. REMEMBER: The use of all chemical products within environmental and safety standards demonstrates respect for life.

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