Title:
PROTECTIVE SHEET FOR PRINTED SURFACE AND METHOD FOR PROTECTING PRINTED SURFACE
Document Type and Number:
Japanese Patent JP3604098
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a protective sheet which prevents a color-printed surface from discoloration and scratches for a long term.
SOLUTION: This sheet, which is stuck to a printed surface to protect it, comprises a substrate 2, a nonsticking resin layer 3, an adhesive layer 4, and a release material 5 laminated successively in this order. The substrate 2 is a film formed from at least one resin selected from among polyethylene terephthalate, cellulose triacetate, polyethylene, polypropylene, and composite resins each comprising mainly one of these resins; the nonsticking resin layer 3 is formed from a clear resin comprising mainly a (meth)acrylate (co)polymer having a glass transition temperature (Tg) of 50°C or higher and a wt. average mol.wt. of 300,000 or higher; and the adhesive layer is formed from a self-adhesive mainly comprising an acrylic self-adhesive having a glass transition temperature (Tg) of -10°C or lower.
Inventors:
Kazuto Takashima
Application Number:
JP22399295A
Publication Date:
December 22, 2004
Filing Date:
August 31, 1995
Export Citation:
Assignee:
Soken Chemical Co., Ltd.
International Classes:
B32B27/00; B29C63/02; B32B27/18; C09J7/02; C09J133/04; C09J133/06; (IPC1-7): C09J7/02; B29C63/02; B32B27/00; B32B27/18; C09J133/06
Domestic Patent References:
| JP63084335U | ||||
| JP57031562A | ||||
| JP61059653U | ||||
| JP3275354A | ||||
| JP61258742A | ||||
| JP61291618A |
Attorney, Agent or Firm:
Shunichiro Suzuki