Method for manufacturing RFID inlet and antenna pattern
A method for manufacturing antenna pattern according to an embodiment includes an adhesive arranging step, a metal sheet arranging step, a cutting step, a removing step, and a pressurizing step. In the adhesive arranging step, an adhesive is arranged inside with respect to a perimeter line of the antenna pattern arranged on a continuous body while conveying the continuous body of a base material.
1. A method of manufacturing an antenna pattern for an RFID inlet that includes a base material, the antenna pattern disposed at one surface of the base material, and an IC chip coupled to the antenna pattern, the method comprising:
an adhesive arranging step of arranging an adhesive on a surface of a continuous body of the base material inside an intended perimeter line of the antenna pattern to be arranged on the continuous body of the base material;
a metal sheet arranging step of arranging a continuous body of a metal sheet on the surface of the continuous body of the base material on which the adhesive is arranged;
a cutting step of forming a shape cutting of the antenna pattern into the continuous body of the metal sheet;
a removing step of removing an unnecessary part of the continuous body of the metal sheet not including the antenna pattern; and
a pressurizing step of pressurizing the antenna pattern arranged on the continuous body of the base material while conveying the continuous body of the base material, wherein,
in the adhesive arranging step, the adhesive is positioned in an arranged position such that margins are formed around an entire perimeter of the adhesive between the intended perimeter line of the antenna pattern and the adhesive, the margins including
a downstream margin formed between the intended perimeter line of the antenna pattern and the adhesive on a downstream side of the continuous body of the base material in a conveyance direction, and
an upstream margin wider than the downstream margin and formed between the adhesive and the intended perimeter line of the antenna pattern on an upstream side of the continuous body of the base material in the conveyance direction, and
in the pressurizing step, the adhesive is spread toward the upstream side within the upstream margin.
2. The method of manufacturing an antenna pattern according to claim 1 , wherein
in the adhesive arranging step, the adhesive is printed to the continuous body of the base material by a letterpress, the letterpress having a convex pattern corresponding to a shape of the adhesive arranged on the continuous body of the base material.
3. The method of manufacturing an antenna pattern according to claim 1 , wherein
in the removing step, the unnecessary part is removed by a suction.
4. The method of manufacturing an antenna pattern according to claim 1 , wherein
in the pressurizing step, the adhesive is spread toward the upstream side by sandwiching and pressurizing the continuous body of the base material on which the antenna pattern is formed between a pressing roller and a supporting roller while conveying.
5. The method of manufacturing an antenna pattern according to claim 1 , wherein
the base material is a thermal paper, and
the adhesive is an ultraviolet curing adhesive.