Clay Natural Kraft (CNK)

Made from recycled material, CNK paper features a matte, clay coated front side and a brown kraft back side. The clay coating offers more dimensional stability making it a durable option for packaging food, retail and personal care products.

  • Made from recycled material
  • Moisture and tear-resistant
  • Features a matte printing surface

Best Used With

Clay coated kraft back paper sheet with white coated front and natural brown backside curled upward

Overview

Clay Natural Kraft (CNK) paper is made using at least 80% virgin unbleached wood pulp, making it an eco-friendly packaging material. Clay coated on the top side and uncoated on the back side, the coated top surface is a matte finish and offers superior printing capabilities for artwork designs, logos and text. Ideal for cold chain packaging, this material is tear, moisture and dust resistant making it popular for packaging frozen food, beverages, pharmaceuticals and personal care products.

Cardboard Thickness

Cardboard thickness comparison showing 12pt to 28pt paperboard options for custom packaging – packlora

Paperboard Thickness and Grammage Conversion Table

Basestock Properties (Units)Nominal Basis Weight (GSM)Caliper (Inches)Thickness (Microns)Commonly Used For
12pt250gsm0.012”305μBags
14pt275gsm0.014”356μTakeout Boxes, Cups
16pt300gsm0.016”406μHeavy duty bags, Takeout Box
18pt350gsm0.018”456μAll box packaging
24pt400gsm0.024”610μHeavy duty boxes
28pt527gsm0.028”710μVery heavy duty boxes
Kraft paper color shades comparison from light to dark for custom packaging materials – packlora

Kraft paper can differ in shades of brown depending on the paper manufacturer and the amount of raw paper pulp to recycled paper pulp ratio. Kraft colors are identified using color IDs and can be color-matched based on samples.

Kraft Color Variance

Color print test on kraft paper with white ink undercoat showing more vibrant and accurate CMYK colors – packlora

Color on Kraft Paper

Kraft paper can alter the color output when printing, making them appear less vibrant and more muted in tone.

Color print test on kraft paper with white ink undercoat showing more vibrant and accurate CMYK colors – packlora

White Undercoat with Color

White ink can be used as a base with color applied on top to ensure colors appear more vibrant.

White ink print effect on kraft paper showing high contrast textured white graphics on brown fibers – packlora

White Ink on Kraft Paper

Using white ink on kraft paper creates a textured contrast on the material due to its natural fibers.