US1382346A - Rosin size solution - Google Patents

Rosin size solution Download PDF

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Publication number
US1382346A
US1382346A US289126A US28912619A US1382346A US 1382346 A US1382346 A US 1382346A US 289126 A US289126 A US 289126A US 28912619 A US28912619 A US 28912619A US 1382346 A US1382346 A US 1382346A
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United States
Prior art keywords
rosin
soap
oil
drying
sizing
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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
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US289126A
Inventor
Cew Judson A De
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PROCESS ENGINEERS Inc
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PROCESS ENGINEERS Inc
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Application filed by PROCESS ENGINEERS Inc filed Critical PROCESS ENGINEERS Inc
Priority to US289126A priority Critical patent/US1382346A/en
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Publication of US1382346A publication Critical patent/US1382346A/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
    • 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
    • D21H17/14—Carboxylic acids; Derivatives thereof

Definitions

  • paper may be made water repellent in the manufacturing process, by incorporating into the paper stock a solution of rosin soap and precipitating it upon th fibers by means of aluminum sulfate, with the formative of acid resinates of aluminum, yet in spite of the most efiicient methods of operation, there are some conditions in whichthe properties of rosin itself do not seem to be sufficient to meet the strains and destructive mechanical conditions of the drying and calendering treatments.
  • the object of this invention is to so modify or alter the properties of rosin hydrates or complexes precipitated in the beating engine, that they will be less liable to become dehydrated or otherwise destroyed during the drying process, and that the dried size will be more elastic and water repellent than before. V.
  • an oil or soap made from an oil which has special elastic and water repellent properties when dried, such as linseed, China wood or other socalled varnish or drying oils.
  • the amount of these special oils or soaps that may be incorporated into the rozin size will depend upon the extent to'which it is desired to modify the properties obtained from rosin, but for purposes of overcoming the actions destructive to sizing on the paper machine, the quantity of these oils or soaps required may vary from 5 per cent. to 50 per cent. of the amount of rosin soap used.
  • the rosin size When it is desired to make the rosin size particularly pliable, strong and water repellent, as much as 50 per cent. of the total size may consist of an oil soap compound made from a drying oil.
  • Such sizes when precipitated with aluminum sulfate in the paper and dried on the paper machine undergo considerable oxidation; but, instead of the oxidation being destructive to the sizing, as it is to rosin size alone, the properties of this blended material actually develop and improve after oxidation.
  • the best sizing compound is produced when soap compounds made from drying oils are blended with a rosin soap containing a considerable amount of unsaponified rosin.
  • One method of combining the properties of these two materials is to dissolve the unsaponified rosin in soap made from a drying oil, it being possible to dissolve together equal quantities of rosin and such oil soap. Another method would be to dissolve a drying oil in a soap made from a drying oil and blend this with a rosin soap containing freerosin.
  • the real invention is the water-proofing quality of the precipitates of soaps made from a drying oil and in order to get certain ideal results regardless of expense, it may be desirable to use the oil soap alone or emulsions of oil in the oil soap.
  • a sizing composltion having therein a rosin soap, rosin, and a soap made from a dryin oil.
  • a sizing composition having therein rosin and a soap made from a drying oil.
  • a sizing composition having therein rosin, rosin soap and a drying oil.
  • a sizing composition having therein rosin soap and a drying oil.
  • a sizing composition having therein a drying oil, soap made. from a drying oil, rosin and rosin soap.
  • a sizing composition having therein a soap made from a drying oil containing an unsaponified oil.

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  • Paper (AREA)

Description

UNITED STATES,
PATENT OFFICE.
JUDSON A. DE GEW, OF NEW YORK, N. Y., ASSIG-NOR TO PROCESS ENGINEERS, IN 0., A. CORPORATION OF NEW YORK.
ROSIN SIZE SOLUTION.
Specification of'Letters Patent. Patented June 21, 1921.
No Drawing. Application filed April 10, 1919, Serial No. 289,126. Renewed April 13, 1921. Serial No.
T 0 all whom a may concern Be it known that I, Jonson A. DE CEW, a subject of the King of Great Britain. and native of the Dominion of Canada, residing at 501 Fifth avenue, New York, N. Y., have invented certain new and useful Improvements in Rosin Size Solutions, of which the foll wing is a specification,
While it is well known in the art that paper may be made water repellent in the manufacturing process, by incorporating into the paper stock a solution of rosin soap and precipitating it upon th fibers by means of aluminum sulfate, with the formative of acid resinates of aluminum, yet in spite of the most efiicient methods of operation, there are some conditions in whichthe properties of rosin itself do not seem to be sufficient to meet the strains and destructive mechanical conditions of the drying and calendering treatments.
The object of this invention is to so modify or alter the properties of rosin hydrates or complexes precipitated in the beating engine, that they will be less liable to become dehydrated or otherwise destroyed during the drying process, and that the dried size will be more elastic and water repellent than before. V.
In order to accomplish this I incorporate into the size composition an oil or soap made from an oil which has special elastic and water repellent properties when dried, such as linseed, China wood or other socalled varnish or drying oils.
The amount of these special oils or soaps that may be incorporated into the rozin size will depend upon the extent to'which it is desired to modify the properties obtained from rosin, but for purposes of overcoming the actions destructive to sizing on the paper machine, the quantity of these oils or soaps required may vary from 5 per cent. to 50 per cent. of the amount of rosin soap used.
When it is desired to make the rosin size particularly pliable, strong and water repellent, as much as 50 per cent. of the total size may consist of an oil soap compound made from a drying oil. Such sizes, when precipitated with aluminum sulfate in the paper and dried on the paper machine undergo considerable oxidation; but, instead of the oxidation being destructive to the sizing, as it is to rosin size alone, the properties of this blended material actually develop and improve after oxidation.
.The best sizing compound is produced when soap compounds made from drying oils are blended with a rosin soap containing a considerable amount of unsaponified rosin.
One method of combining the properties of these two materials is to dissolve the unsaponified rosin in soap made from a drying oil, it being possible to dissolve together equal quantities of rosin and such oil soap. Another method would be to dissolve a drying oil in a soap made from a drying oil and blend this with a rosin soap containing freerosin.
All of the sizing precipitates in which these oil soaps have been incorporated will be more fusible on the paper machine driers than those made from rosin size alone, and this property is one of the great advantages arising from this composition, as it enables the sizing to re-melt when cracks are formed in drying, and as a result much more waterproof paper can be made.
Although this invention relates to improving rosin size, the real invention is the water-proofing quality of the precipitates of soaps made from a drying oil and in order to get certain ideal results regardless of expense, it may be desirable to use the oil soap alone or emulsions of oil in the oil soap.
What I claim as m invention is:
l. A sizing composltion having therein a rosin soap, rosin, and a soap made from a dryin oil.
2. A sizing composition having therein rosin and a soap made from a drying oil.
3. A sizing composition having therein rosin, rosin soap and a drying oil.
4. A sizing composition having therein rosin soap and a drying oil.
5. A sizing composition having therein a drying oil, soap made. from a drying oil, rosin and rosin soap.
6. A sizing composition having therein a soap made from a drying oil containing an unsaponified oil.
In testimony whereof, I have signed my name to this specification, this seventh day of April 1919.
-' JUDSON A. DE 'CEW.
US289126A 1919-04-10 1919-04-10 Rosin size solution Expired - Lifetime US1382346A (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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