Title:
METHOD FOR MANUFACTURING PROTECTIVE FILM-ATTACHED POLARIZING PLATE
Document Type and Number:
WIPO Patent Application WO/2023/195277
Kind Code:
A1
Abstract:
Provided is a manufacturing method with which it is possible to manufacture a protective film-attached polarizing plate that suppresses reverse curling when made into a sheet. This method for manufacturing a protective film-attached polarizing plate includes a bonding step for superimposing a protective film on one surface of a polarizing plate and pressing the resultant polarizing plate by passing the resultant polarizing plate between a pair of bonding rolls, wherein, in the bonding step, when the atmospheric temperature is defined as T1 (°C), and the temperature of the supplied polarizing plate as T2 (°C), the relationship of equation (1) below is satisfied. (1) 2°C≤T1-T2≤15°C
Inventors:
HAGIHARA SHINYA (JP)
OTA HIROFUMI (JP)
OTA HIROFUMI (JP)
Application Number:
PCT/JP2023/007761
Publication Date:
October 12, 2023
Filing Date:
March 02, 2023
Export Citation:
Assignee:
SUMITOMO CHEMICAL CO (JP)
International Classes:
B32B37/20; G02B5/30
Foreign References:
| JP2019101429A | 2019-06-24 | |||
| JP2002303728A | 2002-10-18 | |||
| JP2018025771A | 2018-02-15 | |||
| JP2011138032A | 2011-07-14 |
Attorney, Agent or Firm:
NAKAYAMA, Tohru et al. (JP)
Download PDF: