Adhesive film production apparatus and adhesive film production method

An adhesive film production apparatus for producing reels of an adhesive film having an adhesive layer on a base material layer, the adhesive film production apparatus comprising:

• a feeding roller configured to feed a raw film of the adhesive film;
• a cutting part configured to cut the raw film into a plurality of cut adhesive films having predetermined widths;
• and
• a plurality of winding cores configured to respectively wind the plurality of cut adhesive films,
• wherein the adhesive film production apparatus is configured to convey the cut adhesive films toward the winding cores, along conveyance paths, respectively,
• wherein the conveyance paths are configured to form one or more bend in the plurality of cut adhesive films, prior to being wound around the winding cores, and
• wherein more than half of a total number of the one or more bend, form a convex shape of the adhesive layer, in which the adhesive layer faces outwardly and convexly.

An adhesive film production apparatus for producing reels of an adhesive film having an adhesive layer on a base material layer, the adhesive film production apparatus comprising:

• a feeding roller configured to feed a raw film of the adhesive film;
• a cutting part configured to cut the raw film at one or more positions in a width direction of the raw film, into a plurality of cut adhesive films that include a first cut adhesive film and a second cut adhesive film;
• a plurality of winding cores configured to respectively wind the plurality of cut adhesive films;
• and
• a tension device that is configured to convey the first cut adhesive film in a first linear direction, and to convey a second cut adhesive film in a second linear direction that is different from the first linear direction,
• wherein the first linear direction is set to convey the first cut adhesive film from the tension device at a first angle with respect to a portion of the adhesive film that is conveyed linearly to the tension device,
• wherein the second linear direction is set to convey the second cut adhesive film from the tension device at a second angle with respect to the portion of the adhesive film that is conveyed linearly to the tension device, and
• wherein each of the first angle and the second angle taken at an outer surface of the adhesive film, that is formed by the adhesive layer, is equal to or greater than 180 degrees.