Title:
METHOD FOR MANUFACTURING POLARIZER
Document Type and Number:
WIPO Patent Application WO/2013/051505
Kind Code:
A1
Abstract:
A method for manufacturing a polarizer comprising a transparent film or transparent films (2, 3) bonded to one or both surfaces of a polarizing film (1). Said manufacturing method is characterized by the provision of the following steps: an adhesive application step; a bonding step in which a layered body (4) comprising a transparent film or transparent films (2, 3) layered on one or both surfaces of a polarizing film (1) with the adhesive interposed therebetween is sandwiched between a pair of bonding rolls (51, 52) rotating in the conveyance direction and at least one pushing roll (61, 62) provided in contact with a bonding roll or the bonding rolls (51, 52) pushes at least one of the bonding rolls (51, 52) in the direction of the other bonding roll so as to bond the transparent film(s) (2, 3) to the polarizing film (1); and an active-energy-ray exposure step in which the aforementioned layered body (4) is exposed to active-energy rays so as to cure the adhesive. This manufacturing method is further characterized in that the middle section of the/each pushing roll (61, 62) has a larger diameter than the middle section of the bonding roll (51, 52) in contact with said pushing roll.
Inventors:
FURUKAWA JUN (JP)
HIROIWA AZUSA (JP)
SHIMIZU HIDEMITSU (JP)
SERIKAWA YUJI (JP)
HIROIWA AZUSA (JP)
SHIMIZU HIDEMITSU (JP)
SERIKAWA YUJI (JP)
Application Number:
PCT/JP2012/075378
Publication Date:
April 11, 2013
Filing Date:
October 01, 2012
Export Citation:
Assignee:
SUMITOMO CHEMICAL CO (JP)
International Classes:
G02B5/30; B29C65/48; G02F1/1335; B29L9/00; B29L11/00
Domestic Patent References:
| WO2007094217A1 | 2007-08-23 |
Foreign References:
| JP2011022202A | 2011-02-03 | |||
| JP2007304212A | 2007-11-22 |
Attorney, Agent or Firm:
Fukami Patent Office, p. c. (JP)
Patent business corporation Fukami patent firm (JP)
Patent business corporation Fukami patent firm (JP)
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Claims: