Layered product and method for producing same, and layered product producing apparatus

A method for producing a layered product, comprising:

• delivering a first photopolymerizable composition that comprises a polymerizable compound having a hydroxyl group onto a base material;
• and
• delivering a second photopolymerizable composition that comprises diethylene glycol dimethacrylate onto a layer made of the first photopolymerizable composition,
• wherein a first layer that is a cured product of the first photopolymerizable composition is formed to have an average thickness that is equal to or greater than 35% of a total average thickness.

A layered product producing apparatus, comprising:

• a first storing unit configured to store a first photopolymerization composition that comprises a polymerizable compound having a hydroxyl group;
• a second storing unit configured to store a second photopolymerization composition that comprises diethyelene glycol dimethacrylate;
• a first delivering unit configured to deliver the first photopolymerizable composition onto a base material;
• a second delivering unit configured to deliver the second photopolymerizable composition onto a layer made of the first photopolymerizable composition;
• and
• a curing unit configured to cure the first photopolymerizable composition and the second photopolymerizable composition that are delivered.