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Polyurethane Matte Coating Technology for Product Packaging

Polyurethane Matte Coatings and Consumer Perception

Polyurethane matte coatings are becoming increasingly more popular among today’s consumers who are increasingly focused on all natural and organic products. As a result, brand owners, in an effort to differentiate their consumable goods, are looking to emphasize the perception of product quality through matte packaging which is often associated with the perception of natural-ingredient-based products. Aqueous matte coatings are manufactured to deliver a smooth, matte finish, while maintaining a high degree of color retention and offering several additional features and benefits.

Polyurethane Matte Coatings Offer a Unique Finish

Roymal’s custom polyurethane matte coatings are engineered to impart reduced gloss and a soft, luxurious feel, while also maintaining a high degree of color retention. This polyurethane coating technology and unique polymer design can help packaging professionals create a distinctive finish and provide a “natural” aesthetic to the product packaging. Roymal’s polyurethane matte coating performance, compared to existing matte coating alternatives in the marketplace, offer a distinct look, feel and performance.

The physical properties of polyurethane matte coatings promote a number of features and benefits valuable to converters, packagers, and brand owners, including:

  • Low gloss
  • Excellent clarity
  • Consistent matting from all angles when viewing a package
  • Pleasant aesthetics and a soft haptic feel
  • Excellent print receptivity
  • Heat-resistance suitable for use in further packaging assembly & processing
  • Excellent mar resistance
  • Superior UV resistance

Polyurethane matte coatings are designed for excellent wear and abrasion resistance on packaging films and surfaces. These coatings are engineered for application using conventional technologies and equipment. Aqueous matte coatings can be applied to printed substrates in either spot or complete package coverage. They offer excellent adhesion to ink, with high quality print definition that creates a smooth matte finish. Roymal’s custom matte coatings are applicable to numerous packaging markets and could be an attractive alternative to several existing options, including:

  • Matte films (embossed and silica-filled polyolefin)
  • Matte solvent based lacquers (silica based)
  • Gloss packaging

For more information about custom aqueous matte coating technology, contact Roymal, Inc. by email at roymal@roymalinc.com or by phone at (603) 863-2410

UVCURE2     Soft Feel    PRINT & PACKAGING

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Custom Aqueous Coatings for Flexible Packaging Applications

A Leader in Custom Aqueous Coatings

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Roymal, a leader in custom aqueous coatings, has made its mark among the flexible packaging and consumer goods  industry by manufacturing unique, innovative, problem solving solutions for today’s converting industry. Roymal’s custom aqueous coatings offer superior functionality to complex food packaging applications that are manufactured with a range of substrates which include paper, film and foil.

Roymal’s waterbased custom coating technologies include:

  • Overprint Varnish (gloss or matte)
  • Ink Receptive Primers
  • Heat Seal (lidding and blister)
  • Moisture Barrier
  • Heat Resistant (stand up pouches)
  • Insulation Coating
  • Security Coating

Well known for their superior functionality and unique characteristics, these custom coatings offer qualities that enhance the performance and print quality of flexible packaging and consumer goods products.

Waterbased Heat Seal Coatings

Roymal’s heat seal coatings are generally comprised of acrylic chemistries but also use polyurethane chemistries when applicable. Our heat seal coatings can be sealed coating to coating or coating to substrate, depending on the end-use application. Typical heat sealing conditions have temperature ranges from 225-350°F with 40-80 psi pressure and 0.1-1.0 seconds dwell time.

Heat Seal Coating Substrates & Printing Processes

Peel strengths can be customized pending your coat weight and substrate specifications. Typical examples of laminations include paper to paper, paper to film, paper to foil, film to film and film to foil. These coatings are applied to paper, paperboard and film using the standard printing processes, i.e., rotogravure, flexographic and offset. Heat seal coatings can be used not only for an overall surface coating, but also for pattern coating, in which the heat seal is printed only on those parts of the packaging that need to be sealed.

Heat Seal Coating Product Features:

  • FDA Approval
  • Broad Substrate Adhesion
  • Water Resistance
  • Chemical Resistance
  • Custom Peel Strength
  • Tailored COF
  • Gloss or Matte
  • Custom Pigmented Formulations

For more information about custom waterbased coatings for flexible packaging, please contact Roymal at roymal@roymalinc.com or by calling (603) 863-2410. Our custom coating specialist will work with you to develop tailored solutions that meet your needs.

Waterbased Polyurethane Coatings for Flexible Packaging and Graphic Arts

flexible packaging coatingThe uses of waterbased polyurethane coatings in the flexible packaging and graphic arts markets offers a broad spectrum of solutions and benefits. Polyurethane topcoats, overprints and primers can enhance a product’s appearance and lengthen its lifespan, making it a vital property in the manufacturing of films & product packaging. Custom formulated polyurethane coatings are common among industries like:

·      Flexible Packaging

·      Industrial Graphics

·      Film Coatings

·      Paper Packaging

Polyurethane Coatings Include Topcoats, Overprints and Varnishes

Roymal manufactures custom topcoat chemistries that deliver a variety of benefits to the film converting, printing and graphic arts industry. Polyurethane can enhance the aesthetics of a finished product, by adding a matte, gloss or soft feel finish. Polyurethane properties include flexibility with abrasion, chemical resistance, water resistance and print receptivity to a wide variety of inks including UV, digital and offset. Those benefits include:

Polyurethane overprints are used to protect and lengthen the lifecycle of printed flexible packaging, making them resistant to harsh conditions. They are highly durable to prevent damage from UV, abrasion and exposure to various chemicals. They are conformable for ease of use and when printed on, as well as protect the image and maintain the integrity of the product over time. They are ideal for commercial applications that risk exposure to environmental elements including weather and temperature extremes.

For more information about custom polyurethane coatings please contact Roymal Inc., at (603) 863-2410 or email roymal@roymalinc.com.

 

UVCURE2     Soft Feel    PRINT & PACKAGING

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Waterbased (Aqueous) Coatings & Common Printing Technology

waterbased aqueous coatings for product packaging Aqueous coatings have been in use by commercial packaging professionals for nearly three decades. As the demand for aqueous coatings grows, print technologies become more advanced. Three common print technologies are used to print aqueous coatings. They are flexographic, gravure and offset printing.

Aqueous coating vs. traditional overprint varnish:

• Good gloss
• Increased rub resistance
• Smoother feel
• Elimination or reduction of spray powder applications
• Faster handling of the printed products
• Decreased application time

The type of aqueous coating required depends heavily on the application. Below are three of the most common printing techniques for aqueous coatings.

Flexography

Flexography (often abbreviated to flexo) is a printing process which utilizes a flexible relief plate. It is essentially a modern version of letterpress which can be used for printing on almost any type of substrate, including plastic, metallic films, cellophane and paper. It is widely used for printing on the non-porous substrates required for various types of food packaging (it is also well suited for printing large areas of solid color).

Rotogravure

Rotogravure (roto or gravure for short) is a type of intaglio printing process, which involves engraving the image onto an image carrier. In gravure printing, the image is engraved onto a cylinder because, like offset and flexography, it uses a rotary printing press. It is often used for commercial printing of filmic substrates and other product packaging.

Offset

Offset printing is a commonly used technique in which the inked image is transferred (or “offset”) from a plate to a rubber blanket, then to the printing surface. When used in combination with the lithographic process, which is based on the repulsion of oil and water, the offset technique employs a flat (planographic) image carrier on which the image to be printed obtains ink from ink rollers, while the non-printing area attracts a water-based film (called “fountain solution”), keeping the non-printing areas ink-free. The modern “web” process feeds a large reel of paper through a large press machine in several parts, typically for several meters, which then prints continuously as the paper is fed through.

If you have questions about our custom formulated coatings, overprint varnishes, primers or print technology, please contact Roymal, Inc. for assistance at (603) 863-2410 or email roymal@roymalinc.com.