JPS6254201A - Polarizing film and its production - Google Patents

Polarizing film and its production

Info

Publication number
JPS6254201A
JPS6254201A JP19418785A JP19418785A JPS6254201A JP S6254201 A JPS6254201 A JP S6254201A JP 19418785 A JP19418785 A JP 19418785A JP 19418785 A JP19418785 A JP 19418785A JP S6254201 A JPS6254201 A JP S6254201A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
solution
film
swelling
polyamide
dyestuff
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP19418785A
Inventor
Yoshikuni Aoyanagi
Norio Hayashi
Shogo Okumura
Original Assignee
Mitsubishi Chem Ind Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Abstract

PURPOSE: To obtain the titled film having excellent properties of an thermal resisting property, a moisture resisting property and a strength and a high coefficient of orientation of a dyestuff (Fdye) by dipping the titled film to a solution capable of swelling a polyamide or said solution contg. a metal salt therein, thereby controlling the prescribed coefficient of a polyamide-dyestuff type polarizing film to ≥0.4.
CONSTITUTION: The usable solution a capable of swelling the polyamide is composed of an acidic solution, for example, an usual aqueous dilute solution obtd. by diluting a solvent of the polyamide resin such as a formic acid, a sulfonic acid and a meta-cresol with a water. The concentration of said dilute aqueous solution is determined by a degree of swelling, when the polyamide film is dipped with said dilute solution. Said concentration is 10W80vol%, preferably 20W60vol% on the volume basis of the water. By dipping the film which is uniaxially stretched and is dyed with a dichromatic dyestuff in the solution, the Fdye value of said film increases to ≥0.4. the solution dissolved the metal salt in the swelling solution may be used as the swelling solution.
COPYRIGHT: (C)1987,JPO&Japio
JP19418785A 1985-09-03 1985-09-03 Polarizing film and its production Pending JPS6254201A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19418785A JPS6254201A (en) 1985-09-03 1985-09-03 Polarizing film and its production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19418785A JPS6254201A (en) 1985-09-03 1985-09-03 Polarizing film and its production

Publications (1)

Publication Number Publication Date
JPS6254201A true true JPS6254201A (en) 1987-03-09

Family

ID=16320385

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19418785A Pending JPS6254201A (en) 1985-09-03 1985-09-03 Polarizing film and its production

Country Status (1)

Country Link
JP (1) JPS6254201A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0605191A1 (en) * 1992-12-25 1994-07-06 MITSUI TOATSU CHEMICALS, Inc. Color filter having polarizability
WO1999004646A1 (en) * 1997-07-28 1999-02-04 Verdugt B.V. Chemical composition
JP2008162289A (en) * 1995-06-26 2008-07-17 3M Co Multilayer polymer film having additional coating or layer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0605191A1 (en) * 1992-12-25 1994-07-06 MITSUI TOATSU CHEMICALS, Inc. Color filter having polarizability
JP2008162289A (en) * 1995-06-26 2008-07-17 3M Co Multilayer polymer film having additional coating or layer
WO1999004646A1 (en) * 1997-07-28 1999-02-04 Verdugt B.V. Chemical composition

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