Method for producing laminate, polarizing plate, and image display device

A method for producing a laminate comprising a support and at least two layers provided by coating at least two kinds of coating compositions, respectively, the method comprising:

• simultaneously coating at least two kinds of coating compositions on a support;
• drying the at least two kinds of coating compositions to form at least two layers;
• and
• curing the at least two layers by at least one of a heat treatment and an irradiation with ionizing radiation,
• wherein the at least two kinds of coating compositions each comprises a compound having a polymerizable functional group,
• wherein the at least two kinds of coating compositions are simultaneously coated onto the support from at least one slot die and at least one slide coating head, respectively, of a coating apparatus comprising the at least one slot die and the at least one slide coating head disposed in a vicinity of an end part of the at least one slot die, while the support is supported by a backup roller,
• wherein a length of a slide surface of the slide coating head is from 1.5 to 50 mm,
• wherein a coating amount of the coating composition flown from the slide coating head is 100 cc/m2 or less,
• wherein a cover for covering the entire slide surface is provided and a cross-sectional area defined by the cover, the slide surface, and the backup roller is 550 mm2 or less,
• wherein the dried and cured at least two layers coated simultaneously comprise an upper layer having a thickness of from 30 nm to less than 200 nm and a lower layer having a thickness of from 0.5 to 20 μm in which the support, the lower layer, and the upper layer are provided in this order, and
• wherein the upper layer contains a silicone-based compound and hollow silica particles.