Abstract: This temporarily sticking material includes a base material opaque at least partly, an inter-layer peel ply formed on the principal surface of the base material, a synthetic resin layer transparent at least partly formed on the principal surface of the inter-layer peel ply and an adhesive layer formed on the principal surface of the synthetic resin layer being transparent in the part corresponding to the transparent part of the synethic resin layer. The synthetic resin layer of the temporarily sticking material is stuck on a material to be sticked with the adhesive layer. The base material of the temporarily sticking material can be easily peeled off the synthetic resin layer in the part where the inter-layer peel ply is formed. And the secret information shown on the principal surface of the material to be sticked is visible through the synthetic resin layer when the base material is peeled off the synthetic resin layer.

Abstract: This postcard includes a postcard material and a label covering at least part of the postcard material, and the label in turn, includes a top material at least partly opaque, an inter-layer peel ply formed on the principal surface of the top material, a synthetic resin layer at least partly transparent formed on the principal surface of the inter-layer peel ply and an adhesive layer formed on the principal surface of the synthetic resin layer and which is transparent in the part corresponding to the transparent part of the synthetic resin layer. With this postcard the top material of the label can be easily peeled off the synthetic resin layer in the part where the interlayer peel ply is formed. Secret information shown on the principal surface of the postcard material is visible through the transparent synthetic resin layer when the top material is peeled off the synthetic resin layer.

Abstract: A postcard includes a postcard material and a label covering at least part of the postcard material, and the label in turn, includes a top material at least partly opaque, an inter-layer peel ply formed on the principal surface of the top material, and an adhesive layer formed on the principal surface of the inter-layer peel ply. With this postcard the top material of the label can be easily peeled off the postcard material in the part where the inter-layer peel ply is formed. Secret information shown on the principal surface of the postcard material is visible when the top material is peeled off the postcard material.

Abstract: A postcard comprises a postcard material, and a sticking material adhered on the postcard material for covering at least a part of the postcard material. The sticking material comprises a base material formed with a heat adherent resin layer on its main surface, whereon an adhesion retarding layer which reduces the adhesive force of the heat adherent resin layer to weaken adhesiveness to the postcard material is formed. A perforation is formed extending from one edge of the base material to the other edge thereof at a portion where the adhesion retarding layer is formed, and the base material can be cut by the perforation. Accordingly, the sticking material can be easily peeled off from the postcard material, enabling access to various information formed thereon.

Abstract: An adhesive material which protects against reused which comprises a released sheet (12), an adhesive layer (14) laminated on one main surface of said release sheet (12), a second layer (16) which can be cut or torn by fingers and laminated on said adhesive layer (14), an adhesive layer (18) laminated on said second layer (16), and a first layer (20) laminated and adhered temporarily on said adhesive layer (18).According to the present invention, the first and second layers are adhered temporarily by the adhesion layer in such a state that re-adhering is hardly possible. Thus when attempting to tear off the adhering material, the first layer is separated from the second layer and re-adhering is impossible.

Abstract: An adhesive material which protects against being reused, which comprises a released sheet (12), an adhesive layer (14) laminated on one main surface of said release sheet (12), a second layer (16) which can be cut or torn by fingers and laminated on said adhesive layer (14), an adhesion layer (18) laminated on said second layer (16), and a first layer (20) laminated and adhered temporarily on said adhesion layer (18). According to the present invention, the first and second layers are adhered temporarily by the adhesion layer in such a state that re-adhering is hardly possible. Thus when attempting to tear off the adhering material, the first layer is separated from the second layer and re-adhering is impossible.

Abstract: An easily breakable sticking material comprises a surface layer, an easily breakable layer laminated on one main surface of the above-mentioned surface layer, a first peel-off layer facilitating peeling of the above-mentioned surface layer off the easily breakable layer, a second peel-off layer formed on a part of the main surface of the above-mentioned easily breakable layer, a covering layer formed on the second peel-off layer side main surface of the above-mentioned easily breakable layer, and an adhesive layer formed on the main surface of the above-mentioned covering layer.When the surface layer is peeled off, only the easily breakable layer where the second layer is formed is peeled off the covering layer. Accordingly, the easily breakable layer is peeled off and separated from the other parts and cannot adhere again as in the original state.

Abstract: A sticking material for preventing resticking having an adhesive layer, a second layer laminated on one main surface of the adhesive layer, a peeling agent layer laminated on the second layer and a first layer laminated on the peeling agent layer. The following equation,a<bis satisfied, wherein the force required to separate the first layer from the second layer at the peeling agent layer is denoted as a, and the adhesive force of the adhesive layer with the surface of the second layer is represented by b. Since the second and first layers are adhered temporarily via the peeling agent layer, the first layer once separated from the second layer, cannot be restuck.