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Uncoated Unbleached Kraft (UUK)
Uncoated unbleached kraft paper is a brown, lightweight, high yield paperboard material that is 100% eco-friendly. Its durability and appearance make it popular for packaging beverage containers and is great for heavy duty retail packaging that communicates your brand initiatives.
  • 100% eco-friendly
  • Light Weight
  • Durable and Tear-resistant
    • Uncoated Unbleached Kraft (UUK)
    • Uncoated Unbleached Kraft (UUK)
    • Uncoated Unbleached Kraft (UUK)
    Uncoated Unbleached Kraft (UUK)
    Uncoated Unbleached Kraft (UUK)
    Uncoated Unbleached Kraft (UUK)
    Uncoated Unbleached Kraft (UUK)

    Overview

    UUK paper is unbleached, natural kraft paper that is uncoated on both sides. Made from less virgin wood fibre than other paperboards, UUK paper is an eco-friendly packaging material that is lightweight and extremely durable for packaging food and retail products. Although not ideal for printing due to the highly textured surface, UUK paper can be treated the same as bleached paperboard in order to create a printable and wet-resistant surface by using coatings or films.


    Cardboard Thickness


    Paperboard Thickness and Grammage Conversion Table

    Basestock Properties
    (Units)
    Nominal Basis Weight
    (GSM)
    Caliper
    (Inches)
    Thickness
    (Microns)
    Commonly Used For
    12pt 250gsm 0.012” 305μ Bags
    14pt 275gsm 0.014” 356μ Takeout Boxes, Cups
    16pt 300gsm 0.016” 406μ Heavy duty bags, Takeout Box
    18pt 350gsm 0.018” 456μ All box packaging
    24pt 400gsm 0.024” 610μ Heavy duty boxes
    28pt 527gsm 0.028” 710μ Very heavy duty boxes
    Examples
    Tuck End Auto Bottom
    F012
    Full Overlap Seal End Box
    F011
    Seal End Box
    F010
    Flip Out Open Dispenser
    F009
    Gusset Folder
    F008
    Lock Cap with Double Side Wall
    F007
    Side Lock Cake Box
    F006
    Roll End Tuck Top with Dust Flaps
    F005
    Tab Lock Tuck Top
    F004
    Tuck End Snap Lock Bottom
    F003
    Reverse Tuck End
    F002
    Straight Tuck End
    F001
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