Twoply

Twoply, often written two-ply or two-ply, is a descriptor for products composed of two plies, or layers, of material. The term derives from ply, used in textiles and paper to indicate how many layers are present. Two-ply constructions are common in consumer goods where added thickness, softness, or strength is desirable.

In paper products, two-ply refers to sheets made by bonding two plies, such as toilet paper, facial tissues, and paper towels. The plies may be the same material or different layers, and brands label 2-ply to indicate greater thickness or durability than 1-ply. In textiles, two-ply describes yarn formed by twisting together two single yarns, producing a stronger, warmer fabric.

Manufacturing approaches include lamination of separate plies, multi-layer extrusion, or ply twisting in fiber spinning. The ply count interacts with overall feel, absorbency, strength, and cost. There is no universal standard for performance across industries; ply count is one of several design choices that affect product characteristics.

See also: ply (fabric), two-ply paper.