Heat-activatable linerless label constructions

A heat-activatable labelstock, comprising:

• a face layer having a first surface and a second surface opposite the first surface;
• an optional barrier layer or optional primer layer, each with a first surface and a second surface opposite the first surface, the second surface in direct contact with the first surface of the face layer;
• a pressure-sensitive adhesive layer having a first surface and a second surface;
• wherein the adhesive layer is deposited on the first surface of the face layer, or, when the optional barrier layer or primer layer is present, on the first surface of the barrier layer or the primer layer;
• a detack layer;
• wherein the detack layer is deposited on the second surface of the adhesive layer;
• and
• wherein the detack layer comprises a dispersed plasticizer having a melting point between 70° C. and 120° C. and a non-ionic water-soluble polymeric binder comprising polyvinyl alcohol, wherein upon heating the detack layer above the melting point of the plasticizer, the molten plasticizer combines with the pressure-sensitive adhesive layer wherein a weight ratio of the plasticizer to the polymeric binder in the detack layer is greater than 15:1.