Invention Grant
- Patent Title: Security sticker and method for manufacturing the same
- Patent Title (中): 安全贴纸及其制造方法
-
Application No.: US10564875Application Date: 2004-11-12
-
Publication No.: US07709417B2Publication Date: 2010-05-04
- Inventor: Shigeo Yukawa
- Applicant: Shigeo Yukawa
- Applicant Address: JP Wakayama
- Assignee: Kiwa Chemical Industry Co., Ltd.
- Current Assignee: Kiwa Chemical Industry Co., Ltd.
- Current Assignee Address: JP Wakayama
- Agency: Hamre, Schumann, Mueller & Larson, P.C.
- Priority: JP2003-386029 20031114
- International Application: PCT/JP2004/016853 WO 20041112
- International Announcement: WO2005/048216 WO 20050526
- Main IPC: B41M5/20
- IPC: B41M5/20 ; B41M5/24

Abstract:
The present invention is directed to providing a security sticker which is hard to be counterfeited, cannot be reused if being released and includes a printed image that is stable over a long period of time, and is directed to providing a method for manufacturing the same. The security sticker of the present invention includes: a surface resin layer (A)1 that has a weak affinity with a sublimable dye and allows the dye to penetrate; a print layer (B)2 that contains a low-molecular-weight compound with a molecular weight of 1300 or less in an amount of 0% to 20 wt % inclusive, has an affinity with the dye, and includes an image formed in a thickness direction of the layer by the dye; a self-destructive film layer (C1)3; and a pressure-sensitive adhesive layer (D1)4 in this order, wherein the self-destructive film layer (C1) includes a dye migration preventive resin layer (E) for preventing migration of the dye and a self-destructive layer (F), and the dye migration preventive resin layer (E) is a resin layer containing a certain kind of a vinyl resin as a main component, or a certain kind of a biaxially stretched film.
Public/Granted literature
- US20060211572A1 Security sticker and process for producing the same Public/Granted day:2006-09-21
Information query