wet-strength papers

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example of wet-strength papers used in beverage packaging

Wet-Strength Papers Definition

The wet-strength papers by definition are papers that resist falling apart when wet. As an example: wet-strength papers are commonly used in beverage label packaging. This Performance Label Swatchbook from Monadnock – their Envi Performace Label Stock – demonstrates the durability of this wet-strength paper line when used in lemonade packaging.

 

Paper Classification

Once wet, ordinary papers lose most of their original dry-strength properties. These papers though, possess properties that resist disintegration and rupture when saturated with water. Papers are classified as wet-strength when they retain 15% or more of their dry-tensile strength. Superior quality versions of these papers may retain as much as 50% or more dry strength following immersion in water. Papers in this classification can range in weight from tissue to paperboard.

 

Market Uses for Wet-Strength Papers

Wet-strength papers can withstand the rigors of printing, converting, finishing, bottling and transportation/shipping. They can also survive the cooler and ice bucket. This type of paper stock won’t break down in a freezer. Therefore, it is readily chosen for CPG frozen foods packaging. Some wet-strength papers are used in garment labels as well. So this makes them safe for repeated washing machine use. The most common uses of wet-strength paper are:

  • Wine & Spirits Labels
  • Craft Beverage Labels
  • CPG Labels
  • Garment Labels

 

Printing on Wet-Strength Papers

These useful paper stocks dominate printing, embossing and foil stamping for beverages and frozen foods. They maintain their strength and brightness even when wet. Often, wet-strength papers are available for printing in rolls with pressure sensitive adhesive.

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