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Title:
METHOD FOR SORTING PRINTED MATTER AND PAPERMAKING METHOD USING PRINTED MATTER
Document Type and Number:
WIPO Patent Application WO/2016/104675
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a technique for easy and rapid sorting of printed matter suitable as a starting material for recycled paper. By illuminating the surface of printed mater with light and measuring the reflected light, printed matter that is difficult to recycle as waste paper can be identified. Specifically, by eliminating, from the waste paper starting material, printed matter that, when the printed matter surface is illuminated with light, exhibits an absorption band close to 1720 cm-1, close to 1260 cm-1, close to 1160 cm-1, or close to 700 cm-1, it is possible to efficiently make recycled paper of good quality from the printed matter.

Inventors:
FUKUOKA MOE (JP)
GOTO SHISEI (JP)
TOYOTA KAZUMASA (JP)
HIRABARU CHIKA (JP)
TAKATA MICHIYOSHI (JP)
OTSUHATA TAKANORI (JP)
Application Number:
PCT/JP2015/086172
Publication Date:
June 30, 2016
Filing Date:
December 25, 2015
Export Citation:
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Assignee:
JUJO PAPER CO LTD (JP)
International Classes:
G01N21/3563; D21H11/14
Domestic Patent References:
WO2005012632A12005-02-10
Foreign References:
JP2000325921A2000-11-28
US20060102299A12006-05-18
JPH0948748A1997-02-18
Other References:
HSU N N C ET AL.: "IDENTIFICATION OF THE ORIGINS OF STICKIES IN DEINKED PULP", TAPPI JOURNAL, vol. 80, no. 4, April 1997 (1997-04-01), pages 63 - 68, XP009504255
MARIKO TOKUOKA ET AL.: "UV Kokagata Nenchaku Tape no Bunseki", THE TRC NEWS, vol. 119, June 2014 (2014-06-01), pages 28 - 31, XP009504242
KIVIOJA A ET AL.: "Use of Total Internal Reflection Raman (TIR) and Attenuated Total Reflection Infrared (ATR-IR) Spectroscopy to Analyze Component Separation in Thin Offset Ink Films After Setting on Coated Paper Surfaces", APPLIED SPECTROSCOPY, vol. 67, no. 6, June 2013 (2013-06-01), pages 661 - 671, XP055460392
See also references of EP 3239693A4
Attorney, Agent or Firm:
ONO, Shinjiro et al. (JP)
Ono Shinjiro (JP)
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