초록 ▼

A heat activation method for activating a thermosensitive adhesive label having a support and a thermosensitive adhesive layer which is formed on the support and is not adhesive at room temperature, so as to make the thermosensitive adhesive layer adhesive with the application of heat thereto, inclu

A heat activation method for activating a thermosensitive adhesive label having a support and a thermosensitive adhesive layer which is formed on the support and is not adhesive at room temperature, so as to make the thermosensitive adhesive layer adhesive with the application of heat thereto, includes the step of bringing the thermosensitive adhesive layer into contact with a surface portion of a heating medium, at least the surface portion of the heating medium being made of a silicone resin and having a peel strength of 2 g/mm or less with respect to the thermosensitive adhesive layer. There is also disclosed a heat-activating apparatus for heat-activating the above-mentioned thermosensitive adhesive label.

대표청구항 ▼

[ What is claimed is:] [1.]1. An apparatus for heat-activating a thermosensitive adhesive label comprising a support and a thermosensitive adhesive layer which is formed on said support and is not adhesive at room temperature, so as to make said thermosensitive adhesive layer adhesive with the appli

[ What is claimed is:] [1.]1. An apparatus for heat-activating a thermosensitive adhesive label comprising a support and a thermosensitive adhesive layer which is formed on said support and is not adhesive at room temperature, so as to make said thermosensitive adhesive layer adhesive with the application of heat thereto, comprising:transporting means for transporting said thermosensitive adhesive label; andheating means comprising a heating medium, adapted for heating said thermosensitive adhesive layer of said thermosensitive adhesive label by bringing said thermosensitive adhesive layer into contact with a surface portion of said heating medium, at least said surface portion of said heating medium consisting essentially of a silicone resin and having a peel strength of 2 g/mm or less with respect to said thermosensitive adhesive layer, which is measured by applying said thermosensitive adhesive layer to said surface portion of said heating medium, heating said thermosensitive adhesive layer to 90.degree. C. for one minute under the application of a load of 2 kg thereto, and measuring the force required to peel said thermosensitive adhesive layer from said surface portion of said heating medium under T-peel condition at room temperature at a peeling speed of 30 mm/minute, wherein said thermosensitive adhesive layer has an adhesion of 200 g/25 mm or more, which is measured by applying said thermosensitive adhesive layer to a plate made of SUS-304, heating said thermosensitive adhesive layer to 90.degree. C. for one minute under the application of a load 2 kg thereto, and measuring the tensile strength of said thermosensitive adhesive layer when said thermosensitive adhesive layer is peeled from said SUS-304 plate at a peeling speed of 300 mm/min at a peeling angle of 180.degree..