GB1422385A - Process for treating paper - Google Patents

Process for treating paper

Info

Publication number
GB1422385A
GB1422385A GB4518873A GB4518873A GB1422385A GB 1422385 A GB1422385 A GB 1422385A GB 4518873 A GB4518873 A GB 4518873A GB 4518873 A GB4518873 A GB 4518873A GB 1422385 A GB1422385 A GB 1422385A
Authority
GB
United Kingdom
Prior art keywords
morpholine
paper
vessel
pulp
volume
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
Application number
GB4518873A
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.)
Research Corp
Original Assignee
Research Corp
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 Research Corp filed Critical Research Corp
Publication of GB1422385A publication Critical patent/GB1422385A/en
Expired legal-status Critical Current

Links

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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/03—Non-macromolecular organic compounds
    • D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • D21H17/07—Nitrogen-containing compounds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
    • A61L2/20—Gaseous substances, e.g. vapours
    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Paper (AREA)

Abstract

1422385 Impregnating paper RESEARCH CORP 26 Sept 1973 45188/73 Heading D1P Paper is rendered resistant to acid deterioration by impregnation with an atmosphere comprising at least 8% by volume of morpholine. The atmosphere preferably contains at least one-third of its volume of morpholine or may consist substantially entirely of morpholine. The amount of morpholine impregnated into the paper may be sufficient to provide a paper pH (as defined in the Specification) of at least 7.6, preferably at least 8.5, from a starting pH of 5 or less. The paper may be contacted with the morpholine by placing it above a dish of liquid morpholine in a closed vessel and then circulating the air in the vessel to vapourise the morpholine, or by evacuating the vessel to provide a greater atmospheric concentration of morpholine. The paper may be in the form of a book, and may comprise 49% sulphite pulp, 24% bleached soda pulp, and 27% hardwood pulp, may be filled with bag clay and sized with alum-rosin. The process improves the fold endurance and tear resistance of the paper during a period of heat-aging at 100‹C.
GB4518873A 1971-12-30 1973-09-26 Process for treating paper Expired GB1422385A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21421771A 1971-12-30 1971-12-30

Publications (1)

Publication Number Publication Date
GB1422385A true GB1422385A (en) 1976-01-28

Family

ID=22798244

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4518873A Expired GB1422385A (en) 1971-12-30 1973-09-26 Process for treating paper

Country Status (2)

Country Link
US (1) US3771958A (en)
GB (1) GB1422385A (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3969549A (en) * 1974-12-24 1976-07-13 The United States Of America As Represented By The Librarian Of Congress Method of deacidifying paper
US4051276A (en) * 1974-12-24 1977-09-27 The United States Government As Represented By The Librarian Of Congress Method of deacidifying paper
US4863566A (en) * 1988-04-26 1989-09-05 Warren Morris J Process for the preservation of printed cellulosic materials
US5104997A (en) * 1988-09-30 1992-04-14 Fmc Corporation Mass treatment of cellulosic materials
US5022527A (en) * 1990-05-08 1991-06-11 Fmc Corporation Book container
US5277842A (en) * 1991-02-14 1994-01-11 Battelle-Institut E.V. Solvents for agents to mass deacidify books and other paper products in an environmentally safe manner
US5433827A (en) * 1993-12-21 1995-07-18 Pulp And Paper Research Institute Of Canada Method for the deacidification of papers and books
FR2748282B1 (en) * 1996-05-06 1998-07-17 Lehmans Jean Pierre DEVICE FOR RESTORING AND WASHING DOCUMENTS AND WORKS PRINTED ON PAPER
US6080448A (en) 1998-04-03 2000-06-27 Preservation Technologies Lp Deacidification of cellulose based materials using hydrofluoroether carriers
US6214165B1 (en) 1999-07-13 2001-04-10 Joseph Zicherman Method for deacidification of papers and books by fluidizing a bed of dry alkaline particles
US6641877B2 (en) 2001-03-02 2003-11-04 Ronald E. Johnson Article and method for retarding the deterioration rate of acidic paper
ITMI20011413A1 (en) * 2001-07-04 2003-01-04 Consiglio Nazionale Ricerche METHOD OF CONSERVATIVE TREATMENT OF PAPER MATERIAL
WO2004067670A1 (en) * 2003-01-25 2004-08-12 The Sherwin-Williams Company Archival spray composition
CN103898801A (en) * 2014-04-22 2014-07-02 四川省档案局档案科学技术研究所 Simple and high-efficiency paper deacidification method
CN107881850B (en) * 2017-11-28 2022-10-21 华南理工大学 Ancient book deacidification reinforcing and strengthening device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL54627C (en) * 1936-10-02
US3135627A (en) * 1961-08-08 1964-06-02 Mc Graw Edison Co Thermally stabilized cellulose materials for electrical insulation
GB1129648A (en) * 1965-08-27 1968-10-09 William Herbert Langwell Prevention of deterioration of documents, books, maps and like records
US3419498A (en) * 1966-07-13 1968-12-31 Westinghouse Electric Corp Thermally stable cellulose products

Also Published As

Publication number Publication date
US3771958A (en) 1973-11-13

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee