Embossed film, sheet film, transfer copy, and method for producing embossed film

A method for producing an embossed film, comprising:

• forming a plurality of convexities on a peripheral surface of a circular cylindrical or circular columnar master;
• and
• pressing the master against a transfer destination film while rotating the master to transfer concavities corresponding to a shape of the peripheral surface of the master to the transfer destination film and thereby producing a film main body having a width direction and a length direction, and being a long-length film in the length direction,
• wherein a diameter of an opening surface of the concavity is larger than a visible light wavelength, and
• wherein a difference between a rate of loss of concavities in one end portion of the film main body in the length direction and a rate of loss of concavities in the other end portion of the film main body in the length direction is 10 ppm or less.

A transfer copy comprising:

• a base material having a width direction and a length direction, and being a long-length film in the length direction;
• and
• a plurality of minute solid bodies transferred to a surface of the base material,
• wherein an arrangement pattern of the minute solid bodies has periodicity along the length direction of the base material,
• wherein the rate of loss of the minute solid bodies is less than 1% of a total number of the minute solid bodies, and
• wherein the total number of the minute solid bodies is the number of the minute solid bodies when the minute solid bodies arranged in the arrangement pattern have no loss.

A transfer copy comprising:

• a base material having a width direction and a length direction, and being a long-length film in the length direction;
• and
• a plurality of minute solid bodies transferred to a surface of the base material,
• wherein an arrangement pattern of the minute solid bodies has periodicity along a length direction of the base material,
• wherein a defect rate of the minute solid bodies is less than 1% of a total number of the minute solid bodies, and
• wherein the total number of the minute solid bodies is the number of the minute solid bodies when the minute solid bodies arranged in the arrangement pattern have no defects.