JPH0423037B2 - - Google Patents
Info
- Publication number
- JPH0423037B2 JPH0423037B2 JP4190389A JP4190389A JPH0423037B2 JP H0423037 B2 JPH0423037 B2 JP H0423037B2 JP 4190389 A JP4190389 A JP 4190389A JP 4190389 A JP4190389 A JP 4190389A JP H0423037 B2 JPH0423037 B2 JP H0423037B2
- Authority
- JP
- Japan
- Prior art keywords
- raw material
- alkali
- deinking
- immersion
- waste paper
- 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.)
- Expired - Lifetime
Links
- 239000003513 alkali Substances 0.000 claims description 78
- 238000007654 immersion Methods 0.000 claims description 61
- 239000002761 deinking Substances 0.000 claims description 58
- 239000010893 paper waste Substances 0.000 claims description 55
- 238000000034 method Methods 0.000 claims description 54
- 239000002994 raw material Substances 0.000 claims description 47
- 239000003795 chemical substances by application Substances 0.000 claims description 30
- 238000010907 mechanical stirring Methods 0.000 claims description 23
- 239000004094 surface-active agent Substances 0.000 claims description 17
- 238000004061 bleaching Methods 0.000 claims description 14
- 239000007844 bleaching agent Substances 0.000 claims description 14
- 238000005406 washing Methods 0.000 claims description 14
- 238000007865 diluting Methods 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 4
- 230000018044 dehydration Effects 0.000 claims 1
- 238000006297 dehydration reaction Methods 0.000 claims 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 33
- 238000011282 treatment Methods 0.000 description 31
- 238000005188 flotation Methods 0.000 description 25
- 229920001131 Pulp (paper) Polymers 0.000 description 23
- 230000000052 comparative effect Effects 0.000 description 23
- 239000002245 particle Substances 0.000 description 22
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 20
- 239000000835 fiber Substances 0.000 description 17
- 206010001497 Agitation Diseases 0.000 description 11
- 235000011121 sodium hydroxide Nutrition 0.000 description 11
- 238000013019 agitation Methods 0.000 description 10
- 239000010410 layer Substances 0.000 description 7
- 239000004115 Sodium Silicate Substances 0.000 description 5
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 5
- 229910052911 sodium silicate Inorganic materials 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 238000007598 dipping method Methods 0.000 description 3
- 239000010419 fine particle Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- 238000002791 soaking Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009897 hydrogen peroxide bleaching Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000010191 image analysis Methods 0.000 description 1
- 238000007644 letterpress printing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007645 offset printing Methods 0.000 description 1
- 239000010899 old newspaper Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
Landscapes
- Paper (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1041903A JPH02221480A (ja) | 1989-02-23 | 1989-02-23 | 印刷古紙の脱インキ法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1041903A JPH02221480A (ja) | 1989-02-23 | 1989-02-23 | 印刷古紙の脱インキ法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02221480A JPH02221480A (ja) | 1990-09-04 |
| JPH0423037B2 true JPH0423037B2 (de) | 1992-04-21 |
Family
ID=12621243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1041903A Granted JPH02221480A (ja) | 1989-02-23 | 1989-02-23 | 印刷古紙の脱インキ法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02221480A (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08127989A (ja) * | 1994-10-28 | 1996-05-21 | Honshu Paper Co Ltd | 印刷古紙の脱インキ方法 |
| JP5310995B2 (ja) * | 2008-04-11 | 2013-10-09 | 凸版印刷株式会社 | 印刷古紙再生方法 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5220563A (en) * | 1975-08-05 | 1977-02-16 | Schuler Gmbh L | Device for taking sheet down from pile and conveying the sheet |
| JPS6260515A (ja) * | 1985-09-09 | 1987-03-17 | 松下電工株式会社 | 電動歯ブラシ |
| JPS6328992A (ja) * | 1986-07-23 | 1988-02-06 | 新王子製紙株式会社 | 印刷古紙の脱墨方法 |
-
1989
- 1989-02-23 JP JP1041903A patent/JPH02221480A/ja active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5220563A (en) * | 1975-08-05 | 1977-02-16 | Schuler Gmbh L | Device for taking sheet down from pile and conveying the sheet |
| JPS6260515A (ja) * | 1985-09-09 | 1987-03-17 | 松下電工株式会社 | 電動歯ブラシ |
| JPS6328992A (ja) * | 1986-07-23 | 1988-02-06 | 新王子製紙株式会社 | 印刷古紙の脱墨方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02221480A (ja) | 1990-09-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |