JPS6461592A - Production of paper having metal watermark - Google Patents

Production of paper having metal watermark

Info

Publication number
JPS6461592A
JPS6461592A JP21397587A JP21397587A JPS6461592A JP S6461592 A JPS6461592 A JP S6461592A JP 21397587 A JP21397587 A JP 21397587A JP 21397587 A JP21397587 A JP 21397587A JP S6461592 A JPS6461592 A JP S6461592A
Authority
JP
Japan
Prior art keywords
paper
metal
solution
watermark
catalyst
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
JP21397587A
Other languages
Japanese (ja)
Inventor
Takashi Toida
Hideaki Amano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dai Nippon Printing Co Ltd
Original Assignee
Dai Nippon Printing Co 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
Application filed by Dai Nippon Printing Co Ltd filed Critical Dai Nippon Printing Co Ltd
Priority to JP21397587A priority Critical patent/JPS6461592A/en
Publication of JPS6461592A publication Critical patent/JPS6461592A/en
Pending legal-status Critical Current

Links

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  • Paper (AREA)

Abstract

PURPOSE: To form a metal watermark in the interior of a paper by coating the paper with a solution of a surfactant in an organic solvent in a pattern corresponding to the metal watermark, impregnating the coated paper with an electroless plating catalyst solution, then removing the catalyst solution on the surface and impregnating the resultant paper with an electroless plating solution. CONSTITUTION: A paper is impregnated with a solution of a surfactant in an organic solvent in a prescribed pattern, dried and then impregnated with an electroplating catalyst solution and the catalyst solution on the surface is then washed off to make a large amount of a catalyst present in the pattern part. The resultant paper is impregnated with an electroless plating solution to deposit the metal in a part where the catalyst in the interior of the paper is held. Thereby, a metal watermark having a sufficient concentration and a sharp contour is formed.
JP21397587A 1987-08-27 1987-08-27 Production of paper having metal watermark Pending JPS6461592A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21397587A JPS6461592A (en) 1987-08-27 1987-08-27 Production of paper having metal watermark

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21397587A JPS6461592A (en) 1987-08-27 1987-08-27 Production of paper having metal watermark

Publications (1)

Publication Number Publication Date
JPS6461592A true JPS6461592A (en) 1989-03-08

Family

ID=16648167

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21397587A Pending JPS6461592A (en) 1987-08-27 1987-08-27 Production of paper having metal watermark

Country Status (1)

Country Link
JP (1) JPS6461592A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023051158A1 (en) * 2021-09-29 2023-04-06 永旭腾风新能源动力科技（北京）有限公司 Gas bearing assembly and gas turbine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023051158A1 (en) * 2021-09-29 2023-04-06 永旭腾风新能源动力科技（北京）有限公司 Gas bearing assembly and gas turbine

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