CN111501409A - 一种纸张脱酸用的混悬剂 - Google Patents
一种纸张脱酸用的混悬剂 Download PDFInfo
- Publication number
- CN111501409A CN111501409A CN202010320793.0A CN202010320793A CN111501409A CN 111501409 A CN111501409 A CN 111501409A CN 202010320793 A CN202010320793 A CN 202010320793A CN 111501409 A CN111501409 A CN 111501409A
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- China
- Prior art keywords
- paper
- suspension
- deacidification
- dispersion medium
- magnesium oxide
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- 239000002612 dispersion medium Substances 0.000 claims abstract description 50
- 239000002245 particle Substances 0.000 claims abstract description 35
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 27
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 27
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 22
- 229910052751 metal Inorganic materials 0.000 claims abstract description 12
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- 239000004480 active ingredient Substances 0.000 claims abstract description 8
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 claims abstract description 6
- 229910000000 metal hydroxide Inorganic materials 0.000 claims abstract description 6
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- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims abstract description 5
- 239000000395 magnesium oxide Substances 0.000 claims description 52
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 52
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 51
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- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims description 39
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Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
- D21H25/18—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00 of old paper as in books, documents, e.g. restoring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
- B41M7/0063—Preservation or restoration of currency, books or archival material, e.g. by deacidifying
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- Paper (AREA)
Abstract
Description
宣纸 | 手工竹纸 | 书写纸 | 新闻纸 | 打印纸 | |
脱酸前pH | 6.41 | 5.81 | 6.75 | 4.71 | 4.60 |
脱酸后pH | 8.54 | 8.23 | 7.97 | 8.30 | 8.41 |
蓝黑墨水字迹 | 印泥字迹 | |
ΔE*ab值 | 0.40 | 1.67 |
Claims (10)
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CN116065421A (zh) * | 2023-03-03 | 2023-05-05 | 北京理工大学 | 一种用于酸化纸质文献脱酸处理的氧化镁/碳酸钙纳米复合材料及其制备方法 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115748295A (zh) * | 2022-11-22 | 2023-03-07 | 复旦大学 | 一种碳点-氢氧化镁复合纸张脱酸剂及其制备方法和应用 |
CN115748295B (zh) * | 2022-11-22 | 2023-08-29 | 复旦大学 | 一种碳点-氢氧化镁复合纸张脱酸剂及其制备方法和应用 |
CN116065421A (zh) * | 2023-03-03 | 2023-05-05 | 北京理工大学 | 一种用于酸化纸质文献脱酸处理的氧化镁/碳酸钙纳米复合材料及其制备方法 |
CN116065421B (zh) * | 2023-03-03 | 2024-04-05 | 北京理工大学 | 一种用于酸化纸质文献脱酸处理的氧化镁/碳酸钙纳米复合材料及其制备方法 |
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