Patent ID: 11931924
Assignee: NIPPON ELECTRIC GLASS CO., LTD.
Field: Other special machines (Mechanical engineering)
Classification: CPC B  G | IPC B

Claim 0:
1. A manufacturing method for a flexible mold that is to be wound in an endless manner,
the flexible mold comprising:
a base; and
an uneven layer formed on the base,

the manufacturing method comprising:
a transfer step of sandwiching a molding material between the base and a master mold so that the uneven layer obtained by transferring an uneven pattern of the master mold to the molding material is formed on the base,
wherein the base comprises:
an intermediate sheet;
a first resin sheet arranged on a first main surface side of the intermediate sheet; and
a second resin sheet arranged on a second main surface side of the intermediate sheet,

wherein the intermediate sheet comprises:
a first spacer sheet, which is made of a resin, and is arranged at one end portion of the intermediate sheet in a winding direction of the base;
a second spacer sheet, which is made of a resin, and is arranged at another end portion of the intermediate sheet in the winding direction; and
a glass sheet arranged between the first spacer sheet and the second spacer sheet,

wherein each of first main surfaces of the first spacer sheet, the second spacer sheet, and the glass sheet is bonded to the first resin sheet through intermediation of a first bonding layer, and
wherein each of second main surfaces of the first spacer sheet, the second spacer sheet, and the glass sheet is bonded to the second resin sheet through intermediation of a second bonding layer,
wherein, in the transfer step, the uneven layer made of the molding material is formed on the first resin sheet, and
wherein an end surface of the first spacer sheet in the winding direction and an end surface of the glass sheet in the winding direction that are opposed to each other are spaced apart from each other, and an end surface of the second spacer sheet in the winding direction and another end surface of the glass sheet in the winding direction that are opposed to each other are spaced apart from each other.