Self-heating and adhesive device

Abstract

The self-heating and adhesive device of the present invention comprises a gas-permeable sheet layer, an exothermic composition layer, a gas-impermeable sheet layer, a support, a poultice or gel layer, and a releasing sheet layer in this order, wherein the exothermic composition layer is stuffed in a pouch that is made of the gas-permeable sheet layer and the gas-impermeable sheet layer, and wherein the support comprises a fibrous layer only or a gas-impermeable sheet and a fibrous layer and has a moisture permeability within the range of 0 to 3,000 g/m 2 ·24 hours by the Lyssy method.

1 . A self-heating and adhesive device comprising a gas-permeable sheet layer, an exothermic composition layer, a gas-impermeable sheet layer, a support, a poultice or gel layer, and a releasing sheet layer in this order, wherein the exothermic composition layer is stuffed in a pouch that is made of the gas-permeable sheet layer and the gas-impermeable sheet layer, and wherein the support comprises a fibrous layer only or a gas-impermeable sheet and a fibrous layer and has a moisture permeability within the range of 0 to 3,000 g/m 2 ·24hours by the Lyssy method.  
   
   
       2 . The device according to  claim 1 , wherein the fibrous layer is made of at least one member selected from the group consisting of an unwoven fabric, a woven fabric, and paper.  
   
   
       3 . The device according to  claim 1 , wherein raw materials of the fibrous layer comprises at least one member selected from the group consisting of cotton, a regenerated cellulose, a polyester, a polypropylene, a polyamide, and an acrylic at least a part of the raw materials.  
   
   
       4 . The device according to  claim 1 , wherein the support is made of an unwoven fabric having a basis weight of 20 to 60 g/m 2 .  
   
   
       5 . An adhesive structure comprising a support, an adhesive poultice or gel layer, and a releasing sheet layer in this order, wherein the support comprises a fibrous layer only or a gas-impermeable sheet and a fibrous layer and has a moisture permeability within the range of 0 to 3,000 g/m 2 ·24hours by the Lyssy method.