Wet-Strength Papers definition in printing terminology

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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.

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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.

Wet strength tissue paper is an art tissue paper like no other! Designed not to fall apart when wet is perfect for model making and other art activities. Once wet is can be draped over structures made with wire, willow sticks etc and then it dries to a tight hard layer of tissue paper. Traditionally it has been used to make large structures such as willow lanterns and models. Lay a sheet of the wet strength tissue paper down and wet with a a diluted PVA mix. Then place the wet strength tissue paper over the skeleton of your structure. Leave to dry and you it dries hard with whilst remaining like tissue. Put a candle in your lantern for an amazing effect. A great alternative to deli paper – once you have tried you will not go back. This tissue paper is stronger and more versatile. Each wet strength tissue paper sheet is approx. 70 by 60 cm or 27 inches by 19 inches and is 17gsm thick. Bigger and thicker sheets than standard deli paper. Like deli paper our wet strength tissue paper can be used for gelli printing. Its strength when wet will give you fantastic results and make your art work look superb. It is also great for model aircraft making. Layer the tissue over the craft skeleton and it will add strength but not weight. Also great for painting on – it will take most paints and inks without falling apart of bleeding through. Once your structure is made you can overlap with coloured tissue paper to get many effects.

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