Kernow Coatings Frequently Asked Questions

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Can KernowPrint Dry Toner sheets be folded and scored?

Yes they can. Scoring techniques such as Press Score, Rotary Score, or Die Score are suitable. The depth of the score should be 20% of the thickness of the media. Thinner films can be folded using standard folding equipment, but it will have more bounce back than paper because it has no grain and is denser. Thicker films may require systems that can apply heat and/or scoring (after printing) to create an effective fold.

Can KernowPrint be trimmed and Die Cut?

KernowPrint can be guillotine cut using a blade that is sharp and free of nicks. When die cutting, dies should be hardened steel and also sharp and free of nicks. Right angle cuts should be made with a 1.6mm or 1/16th inch radius hole. Laser die cutting is not recommended

Is KernowPrint Dry Toner waterproof?

Yes it is – KernowPrint is alcohol, water, chemical, and scuff resistant. It does not need to be laminated or varnished.

What best practices are recommended when running KernowPrint Dry Toner?

Media must be acclimated in the original sealed package at the printer environment for 24 to 48 hours before use. Any unused media should be stored in the original box.

For optimum image quality and reliability, maintain printer room Relative Humidity at 40% or higher. Printer room Relative Humidity of 40-45% may require transfer and fusing adjustments for best image quality results. Printer Room Relative Humidity conditions of less than 40% are not recommended.

A 1-inch margin on both the trail and lead edge of the sheet is recommended; however a 2-inch margin may be required to eliminate the occurrence of Edge Deletion Artifacts when printing 3 and 4 color process colors.

Printer setting recommendations are intended to be ‘starting point’ target values that may have to be adjusted depending on printer room %RH, artwork composition and/or printer condition to obtain optimum image quality.

When consecutively printing more than 1000 sheets it may be necessary to run plain paper that is the same size as the synthetic media every 500 sheets in order to clean residual fuser oil from the fuser section for printers that use fuser oil. Please check with your service representative to determine if this is required.

We recommend trying a sample before purchasing significant quantities.

What label products do you offer?

Click here for a selection of label products. We offer many synthetic label products with various film and adhesive choices including white permanent adhesives, clear removable adhesives, and marine grade (BS5609 compliant).

What are the different types of adhesive you offer?

Click here for a list of adhesive products.

Permanent Adhesive – intended to stay for the life of the product. This type of adhesive is a strong, long term bond. Good for general purpose use. (Drum Labels, Shampoo Labels, Shipping Containers).

Removable Adhesive – intended for repositionable applications. This type of adhesive provides moderate adhesion for long term use but removes cleanly. (Bus Poster, Bumper Stickers and Shelf Marking).

Low Tack Adhesive – intended for repositionable applications. This type of adhesive provides a ‘cling-like’ adhesive and removes cleanly. (Window Graphics and Counter Signage).

Marine Grade – BS5609 compliant for oil drum labels, chemical and container labelling.

What is the difference between Permanent, Removable and Low Tack adhesive?

  • Permanent – like labels on shampoo bottles – intended to stay for the life of the product
  • Removable – like shelf markers or bumper stickers – you want them to stay on for a long time, but when they need to come off, they remove cleanly but with a bit of force
  • Low Tack – like window clings – you want to reposition or reuse them elsewhere, and should be easily removed with little effort

What is the shelf life of label products?

18 months after delivery (under recommended storage conditions)

Is KernowPrint Dry Toner considered to be acid free?

No. While the base sheets are acid free, the top coating is not.  Because the top coating is such a small portion of the overall material, some users use it regardless in acid free applications.

Can you create custom pre-perf products for customers?

Yes we can – we have two machines which are capable of producing a variety of pre-perforated material using custom tools, plus we have a large library of tools already available. We can also help and advise on the design of your custom tool. Tool sizes are A5, A4, A3, SRA3, 8 ½ x 11”, or 12 x 18”, and any design can be discussed. We create pre-cut adhesive labels, pre-perforated designs such as luggage tags, door hangers, ID badges, and pre-creased material for menus and brochures. There are endless possibilities, please contact us to discuss.

Can KernowPrint Dry Toner be Recycled?

KernowPrint is a pure synthetic being recycled as a category 7 or category 1 polymer, depending on local regulation and availability. Read more about our sustainability vision here.

How long will an image last on KernowPrint Dry Toner when used outside?

This is a highly durable product suitable for long term outdoor use. The longevity of the image depends on the concentration of UV in the light it is exposed to. Direct sun is the worst case scenario, and from what we have seen the image will begin to fade within 6 months of direct exposure. We do not know if the fade curve is linear relative to UV concentration or how long the image will last in total darkness. The image can be protected from UV light through UV screening, over-varnishing, or glass containing a UV barrier.  Toners also vary in printing hardware, with a variation between different makes and models possible.

What are the recommended environmental conditions for running KernowPrint Dry Toner?

Controlling print room conditions is crucial when printing synthetic media. Temperature and humidity should be controlled between 10-30C (70-76F) and 40 – 55% relative humidity. Failure to control the environmental conditions could cause static buildup impacting print image quality and media handling performance.

Is KernowPrint Dry Toner available in colours?

Yes, we make KernowPrint Dry Toner in many pastel and vivid colours, click here to see the full list. Colours are compatible with the same OEM printer base as the white KernowPrint.

We are experts in colour and can create Pantone or custom colours to within +/0.5 Delta E (very precise!). If you require a custom colour we can make it, please contact us to discuss your needs.

Is KernowPrint Dry Toner compatible with digital printing?

Yes – KernowPrint is the most tested, most trusted, most OEM certified synthetic, and compatible with numerous dry toner copiers and printers including Xerox, Ricoh, Konica/Minolta, Canon, and Kodak. KernowPrint is also HP Indigo compatible.

Can KernowPrint Dry Toner be printed using offset presses?

Yes. Oxidative and UV inks formulated for use on plastics are compatible. Laser safe inks are recommended if the preprinted stock is to be run in xerography. When using oxidative inks, limited use of drying powder is recommended. Limit ink coverage in areas to be laser imaged. Maintain a minimum of 45% press room relative humidity.

Do you make Drawing Films for outdoor use?

If you require a drawing film for outdoor use in all weathers, please enquire as we do have a product that is water-resistant.

Our drawing film can be screen litho UVC printed.

Do you make Diazo Film?

We do still produce a Diazo film with a thickness of 125 microns. It is produced only once per year but if you require Diazo film please let us know and we will see what can be done.

What causes synthetic labels to jam, and how can it be avoided?

Jamming of synthetic labels is most often caused by static build-up.

All KernowPrint labels have an anti-static coating on the back of the liner to address this issue.

However, because of the ultra-smooth surface of clear film, it is more susceptible to static and instances of jamming.

Maintaining humidity at 45% or greater will help. Other suggestions include fanning the stock prior to running, selecting the shortest print path, and employing any additional anti-static measures available including tinsel or anti-stat bars.

Do you have a flat bed plotter product?

We have a Design & Reprographic product called Kernowloft. This excellent lay flat ink/ball point plotting film is still available, complementing our Diazo film. Flat bed plotters? It’s a Guaranteed lay flat product.

How do I use Design Jet film?

Design Jet Translucent Film is inkjet printable and has a coating on the reverse enabling pen/ink drawing to be made. More information can be found on the product page for 075CDA Design Jet.

Do you make a product for wide format PPC Printers?

Yes, we produce polyester films for wide-format PPC printers in Translucent (frosted) and Clear.

Do your Design & Repro products come as sheets or rolls?

Yes – all of our Design & Reprographics materials are available in wide format rolls or sheets. Read more here.

What is KernowPrint Dry Toner?

Polyethylene Terephthalate (PET) is commonly referred to as Polyester. The PET films have good stiffness with high dimensional and temperature stability.  They are bi-axially oriented during manufacturing process which develops a very high tensile strength.  Proprietary top coatings are required to achieve good printer image quality and limit static buildup.  PET is an ideal base material for laser printing being largely unaffected by the high fuser temperatures in some printers. PET’s are unaffected by most common solvents.  They are relatively inert and as such benign to the environment after disposal.

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