System for producing microporous laminated sheet

A microporous laminated sheet-producing system for bonding a microporous film to a reinforcement, comprising:

• a microporous film-feeding section serving for feeding the microporous film;
• a reinforcement-feeding section form which the reinforcement is unwound to be supplied to the microporous film;
• an adhesive-applying section for applying an adhesive in a lattice shape on the microporous film fed from the microporous film-feeding section;
• a drying chamber for drying the microporous film applied with the adhesive;
• a laminating section for bonding the microporous film discharged from the drying chamber and the reinforcement to each other to form a laminated sheet;
• and
• a microporous film-producing system including a stretching section including plural sets of rollers that have a rotation velocity progressively increasing from an input side of the microporous film toward an output side of the microporous film,
• wherein each of the roller sets of the microporous film-producing system comprises:
• a base roller being in contact with one side of the microporous film;
• a support roller opposite the base roller the support roller being in contact with the other side of the microporous film;
• and
• a retainer roller for maintaining and restricting the support roller at a state pressed against the base roller;
• and
• wherein the adhesive-applying section comprises:
• an adhesive tank including an adhesive;
• an applying roller for applying the adhesive included in the adhesive tank, on the microporous film;
• a pressing roller for pressing the microporous film against the applying roller;
• and
• an assistant pressing roller for pushing the pressing roller toward the applying roller.