Pressure-sensitive adhesive sheet for tire and method for producing the same

A method for producing a pressure sensitive adhesive sheet for tires, which comprises a release material (C), a first pressure sensitive adhesive layer (B1), a first substrate (A1), a second pressure sensitive adhesive layer (B2), and a second substrate (A2), in this order,

• the method comprising the following steps (1) to (7) in this order:
• Step (1):
• a step of providing a layer formed of an energy ray-polymerizable pressure sensitive adhesive composition on the first substrate (A1) of a laminate (I) having a release material (C), a first pressure sensitive adhesive layer (B1), and a first substrate (A1), in this order;
• Step (2):
• a step of irradiating the layer formed of an energy ray-polymerizable pressure sensitive adhesive composition with energy rays to cause polymerization, thereby forming a second pressure sensitive adhesive layer (B2) to constitute a laminate (II);
• Step (3):
• a step of die cutting a laminate part (L) composed of the first pressure sensitive adhesive layer (B1), the first substrate (A1) and the second pressure sensitive layer (B2) in the laminate (II), thereby forming a laminate (III) and a selvage part (Y1):
• Step (4):
• a step of removing the selvage part (Y1) formed in the step (3);
• Step (5):
• a step of providing a second substrate (A2) on the surface of the second pressure sensitive adhesive layer (B2) of the laminate (III), thereby forming a laminate (IV);
• Step (6):
• a step of die cutting the second substrate (A2) in such a manner that, in a planar view of the second substrate (A2), the outline of the first pressure sensitive adhesive layer (B1) exists inside the outline of the second substrate (A2), that the outline of the second pressure sensitive adhesive layer (B2) exists inside the outline of the second substrate (A2), and that the shortest distance (X) between the outline of the second substrate (A2) and the outline of the second pressure sensitive adhesive layer (B2) is 0.35 mm or more, thereby forming a laminate (v) and a selvage part (Y2);
• and
• Step (7):
• a step of removing the selvage part (Y2) formed in the step (6).

A method for producing a pressure sensitive adhesive sheet for tires, which comprises a release material (C), a first pressure sensitive adhesive layer (B1), a first substrate (A1), a second pressure sensitive adhesive layer (B2), and a second substrate (A2)′, in this order,

• the method comprising the following steps (1)′ to (7)′ in this order:
• Step (1)′:
• a step of providing a layer (B2)′ formed of an energy ray-polymerizable adhesive composition on the first substrate (A1) of a laminate (I) having a release material (C), a first pressure sensitive adhesive layer (B1), and a first substrate (A1), in this order, thereby forming a laminate (II)′;
• Step (2)′:
• a step of die cutting the laminate part (L)′ composed of the first pressure sensitive adhesive layer (B1), the first substrate (A1) and a layer (B2)′ formed of an energy ray-polymerizable adhesive composition in the laminate (II)′, thereby forming a laminate and a selvage part (Y1)′:
• Step (3)′:
• a step of removing the selvage part (Y1)′ formed in the step (2)′;
• Step (4)′:
• a step of providing a second substrate (A2)′ on the surface of the layer (B2)′ formed of an energy ray-polymerizable adhesive composition in the laminate (III)′, thereby forming a laminate (IV)′;
• Step (5)′:
• a step of irradiating the layer (B2)′ formed of an energy ray-polymerizable adhesive composition with the energy rays having passed through the second substrate (A2)′ to cause polymerization, thereby forming a second pressure sensitive adhesive layer (B2) to constitute a laminate (IV);
• Step (6)′:
• a step of die cutting the second substrate (A2)′ in such a manner that, in a planar view of the second substrate (A2)′, the outline of the first pressure sensitive adhesive layer (B1) exists inside the outline of the second substrate (A2)′, that the outline of the second pressure sensitive adhesive layer (B2) exists inside the outline of the second substrate (A2)′, and that the shortest distance (X) between the outline of the second substrate (A2)′ and the outline of the second pressure sensitive adhesive layer (B2) is 0.35 mm or more, thereby forming a laminate (V) and a selvage part (Y2);
• and
• Step (7)′:
• a step of removing the selvage part (Y2) formed in the step (6).