US670511A - Manufacture of paper. - Google Patents

Manufacture of paper. Download PDF

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Publication number
US670511A
US670511A US3605700A US1900036057A US670511A US 670511 A US670511 A US 670511A US 3605700 A US3605700 A US 3605700A US 1900036057 A US1900036057 A US 1900036057A US 670511 A US670511 A US 670511A
Authority
US
United States
Prior art keywords
paper
manufacture
salt
cobalt
friese
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
Application number
US3605700A
Inventor
William Friese-Greene
Percy Edwin Knell
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.)
ELECTRICAL INKLESS PRINTING SYNDICATE Ltd
Original Assignee
ELECTRICAL INKLESS PRINTING SYNDICATE 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 ELECTRICAL INKLESS PRINTING SYNDICATE Ltd filed Critical ELECTRICAL INKLESS PRINTING SYNDICATE Ltd
Priority to US3605700A priority Critical patent/US670511A/en
Application granted granted Critical
Publication of US670511A publication Critical patent/US670511A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
    • D21H17/675—Oxides, hydroxides or carbonates

Definitions

  • This invention has reference to the manufaotu re of paper suitable for use in electrical inkless printing in a manner such as is described in the specification of William Friese- Greenes British patent, No. 27,243 of 1897.
  • the invention consists in applying to the paper in the course of its manufacture or after its manufacture a solution Of any oxy derivative of benzene which will reduce a haloid salt of silver -for example, hydroqui- 20. non, adurol, and the likein conjunction with a salt of cobalt (preferably nitrate) Ora salt of the so intimately allied element nickel, (such as the sulfate or chlorid.) '
  • a salt of cobalt preferably nitrate
  • nickel such as the sulfate or chlorid.
  • the solutions may be incorporated with paper-pulp beforeits manufacture into paper or be distributed, preferably in the state of fine division, upon the layer of pulp when on the wire web or other former before or during the forming of the paper or upon 5 the paper after it has formed and either when still moist or after it has become dry.
  • an equal quantity of a nickel salt may be used.
  • lrydroquinon it should preferably be dissolved separately in warm water and the solution kept lukewarm while it is being applied to the paper.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)

Description

ITED STATES PATENT @FFICE.
WILLIAM FRIESE-GREENE, OF DOVERCOIIRT, AND PERCY EDWIN KNELL, OF LONDON, ENGLAND, AssIGNORs TO THE ELECTRICAL INKLEss PRINT- ING SYNDICATE, LIMITED, OF LONDON, ENGLAND.
MANUFACTU RE OF PAPER.
SPECIFICATION forming part Of Letters Patent No. 670,511, dated March 26, 1901. Application filed November 1900. Serial No. 36057. (Ilo specimens.)
To all whmn it may concern:
Be it known that we,WILLIAM FRIEsE- GREENE, photographer, of 8 Cliff Villas, DO- vercourt, Essex county, and PERCY EDWIN 5 KNELL,.engineer, of 8 Popes road, Brixton,
London, England, have invented certain new and useful Improvements in the Manufacture of Paper, of which the following is a specification.
IO This invention has reference to the manufaotu re of paper suitable for use in electrical inkless printing in a manner such as is described in the specification of William Friese- Greenes British patent, No. 27,243 of 1897.
The invention consists in applying to the paper in the course of its manufacture or after its manufacture a solution Of any oxy derivative of benzene which will reduce a haloid salt of silver -for example, hydroqui- 20. non, adurol, and the likein conjunction with a salt of cobalt (preferably nitrate) Ora salt of the so intimately allied element nickel, (such as the sulfate or chlorid.) 'Among the oxyderivatives of benzene whichare particularly useful for the purpose of this invention, in addition to hydroquinon, the following may be mentioned: amidol inetohadurol, glycin, kachin.
The solutions may be incorporated with paper-pulp beforeits manufacture into paper or be distributed, preferably in the state of fine division, upon the layer of pulp when on the wire web or other former before or during the forming of the paper or upon 5 the paper after it has formed and either when still moist or after it has become dry.
We do not limit ourselves to any particular proportions of the ingredients of the so lution employed, as they may be considerably varied; but the following may be given as examples:
First. Water, one gallon; hydmouinon, two ounces; nitrate of Icoballf one-fourth ounce. In lieu of the cobalt in this formula an equal quantity of a nickel salt may be used.
Second: water, one gallon; adurol, two ounces; nitrate of cobalt, one-fourth ounce.
In lieu of the cobalt in this formula an equal quantity of a nickel salt may be used. In all cases where lrydroquinon is used it should preferably be dissolved separately in warm water and the solution kept lukewarm while it is being applied to the paper.
What we claim, and desire to secure by Letters Patent, is.- 1
1. As a new article of manufacture, paper containing an oXy derivative of benzene which will reduce a haloid salt of silver, together with a salt of cobalt or a salt of nickel. 6o
2. As a new article of manufacture, paper containing hydroquinon and salt of cobalt.
In witness whereof we have hereunto signed our names in the presence of two subscribing witnesses.
WILLIAM FRIESE-GREENE. PERCY EDWIN KNELL.
Witnesses:
GEORGE BELOE ELLIS, ROBERT M. SPEARPOINT.
US3605700A 1900-11-10 1900-11-10 Manufacture of paper. Expired - Lifetime US670511A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US3605700A US670511A (en) 1900-11-10 1900-11-10 Manufacture of paper.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3605700A US670511A (en) 1900-11-10 1900-11-10 Manufacture of paper.

Publications (1)

Publication Number Publication Date
US670511A true US670511A (en) 1901-03-26

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Family Applications (1)

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US3605700A Expired - Lifetime US670511A (en) 1900-11-10 1900-11-10 Manufacture of paper.

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5122230A (en) * 1990-05-14 1992-06-16 Oji Paper Co., Ltd. Process for modifying hydrophilic fibers with substantially water-insoluble inorganic substance
US5156717A (en) * 1988-12-07 1992-10-20 Aussedat-Rey Non-fluorescent forgery-proof safety paper and document obtained

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5156717A (en) * 1988-12-07 1992-10-20 Aussedat-Rey Non-fluorescent forgery-proof safety paper and document obtained
US5122230A (en) * 1990-05-14 1992-06-16 Oji Paper Co., Ltd. Process for modifying hydrophilic fibers with substantially water-insoluble inorganic substance
US5158646A (en) * 1990-05-14 1992-10-27 Oji Paper Co., Ltd Process for modifying hydrophilic fibers with substantially water-insoluble inorganic substance

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