US1550632A - Process for sizing paper in the pulp - Google Patents

Process for sizing paper in the pulp Download PDF

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Publication number
US1550632A
US1550632A US642860A US64286023A US1550632A US 1550632 A US1550632 A US 1550632A US 642860 A US642860 A US 642860A US 64286023 A US64286023 A US 64286023A US 1550632 A US1550632 A US 1550632A
Authority
US
United States
Prior art keywords
pulp
rosin
sizing
paper
acid
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
US642860A
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English (en)
Inventor
Pelzer Josef
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Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US1550632A publication Critical patent/US1550632A/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
    • D21H17/62—Rosin; Derivatives thereof

Definitions

  • My invention relates to paper making, and has particular reference to a method of sizing paper in the pulp.
  • the object of my invention is to provide a method of sizing which may be reliably controlled whereby an increase in efliciency and economy of .material is accordingly effected.
  • rosin is preci itated throughout the paper in an extreme y finely divided state. Since rosin has no affinity for .ink or similar watery"solutions,,the spreading of the ink along the paper fibres is prevented and the paper is thus made suitable for writing puroses.
  • the inventor of the rosin-sizing process whose free rosin theory was subsequently supported experimentally by Wurster (Dinglers Polytechnisches Journal'1877), the sizing is effected only by Upon diluting the rosin soap with water before it is introduced into the pulp-engine, more orless turbid liquids are formed according to the alkali content. This turbidity was explained as resulting from free rosin which, in the case of neutral size, was
  • Hs represents the anion of the resin acid.
  • the free rosin formed by hydrolysis is precipitated in the form of large the fibres and then wholly or partly de-' composed by the acid action of the alumi- I num sulphate.
  • Such acid salt as may remain undecomposed has exactly the same effect as free rosin, since the acid salthas even less aflinity for water than rosin.

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  • Paper (AREA)
US642860A 1922-06-06 1923-06-01 Process for sizing paper in the pulp Expired - Lifetime US1550632A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP44403D DE371380C (de) 1922-06-06 1922-06-06 Verfahren zum Leimen von Papier im Stoff

Publications (1)

Publication Number Publication Date
US1550632A true US1550632A (en) 1925-08-18

Family

ID=7380306

Family Applications (1)

Application Number Title Priority Date Filing Date
US642860A Expired - Lifetime US1550632A (en) 1922-06-06 1923-06-01 Process for sizing paper in the pulp

Country Status (4)

Country Link
US (1) US1550632A (de)
AT (1) AT97693B (de)
DE (1) DE371380C (de)
FR (1) FR567034A (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1122200B (de) * 1960-07-28 1962-01-18 Eisele & Hoffmann K G Verfahren zur Herstellung besonders stabiler, feindisperser Harzdispersionen von erhoehter Leimkraft zur Leimung von Papier

Also Published As

Publication number Publication date
DE371380C (de) 1923-12-11
FR567034A (fr) 1924-02-23
AT97693B (de) 1924-08-25

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