US1819441A - Paper product and method of making the same - Google Patents

Paper product and method of making the same Download PDF

Info

Publication number
US1819441A
US1819441A US262030A US26203028A US1819441A US 1819441 A US1819441 A US 1819441A US 262030 A US262030 A US 262030A US 26203028 A US26203028 A US 26203028A US 1819441 A US1819441 A US 1819441A
Authority
US
United States
Prior art keywords
paper
carbonate
filler
emulsion
paraffin
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
US262030A
Other languages
English (en)
Inventor
Harold R Rafton
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.)
Raffold Process Corp
Original Assignee
Raffold Process 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10060290&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US1819441(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Raffold Process Corp filed Critical Raffold Process Corp
Priority to US262030A priority Critical patent/US1819441A/en
Application granted granted Critical
Publication of US1819441A publication Critical patent/US1819441A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • 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
    • D21H17/60—Waxes
    • 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

  • Oneobject'of my invention is to produce a new, useful, and improved sized pa r made with a carbonate filler, and to provlde a simple method for accomplishing this result.
  • water insoluble carbonates normal or basic of the alkaline earth metals (which expression is herein intended to include magnesium), or-compounds, or double salts, or physically associated mixtures of these with one or more other acid soluble materials of a substantially water insoluble nature, these fillers whether simple or complex as above, being characterized by the fact that, when agitated in bontact with freshly boiled distilled water in concentrated suspension for say an hour, they impart to the water a pH.
  • fillers are calcium carbonate, of which lime mud from the causticizing process is one form; calcium carbonate magnesium basic carbonate employed in' the paper disclosed inmy U. S. Patent No. 1,595,416 of August 10, 1926; and calcium carbonate magnesium hydroxide, disclosed in my U. S. Patent No. 1,415,391 of May"9.,'1922, and used in the filled paper disclosed in my U. S. Patent No. 1,598,104 of August 31, 1926.
  • these fillers are referred to not only in their chemically pure form, but also in commercial form containing such impurities as may compounding or disintegrating or treating Application filed March 15, 1928.
  • Serial No. 282,031 is referred to not only in their chemically pure form, but also in commercial form containing such impurities as may compounding or disintegrating or treating Application filed March 15, 1928.
  • any given filler of the type referred to is not nec essarily of uniform particle size; nor are the average particle sizes of the fillers neccssarily alike, as some of the fillers of the type referred to have relatively coarse grain particles, whereas other are much more finely divided, and some are so finely divided that they may be said to approachor be in the colloidal condition.
  • carbonate filler or fillers
  • aper made with carbonate filler either a'sa fillmg or coating constituent, or both, is reus'ed'in the papermakingprooess.
  • Such apers may be those known to the trade as old papers or old waste papers or waste pa ers in any form, or returned trimmings or amaged paper or the like, or they may be the broke t at is,
  • paraflin wax which is solid at ordinary or room temperature.
  • the novelty of the present invention does not reside broadly in the production of a sized carbonate filled paper as a new article of manufacture, as such papers have been British Patent No. 2664 of 1859; Cappazas British Patent No. 5776 of 1899; Stathams U. S. Patent No. 1,209,221 of December 19, 1916; and m U. S. Patents No. 1,595,416 of August 10, 1926, and No. 1,598,104 of August 81, 1926.
  • paraflin preferably in a comminuted form commonly called an emulsion (i. e., a suspension of minute discrete particles of paraffin in a liquid, preferably aqueous or miscible with water), containing an emulsifying agent, (i. e., a material o r materials which tend to prevent the coalescence of the discrete particles of paraflin.
  • an emulsion i. e., a suspension of minute discrete particles of paraffin in a liquid, preferably aqueous or miscible with water
  • an emulsifying agent i. e., a material o r materials which tend to prevent the coalescence of the discrete particles of paraflin.
  • emulsions are well known and may be satisfactorily produced in a variety of ways, as e. g., in a dispersion machine, such as in one of a variety of coiled mills or homogenizers.
  • paraflin emulsified in water with a sulphonated oil as emulsifying agent is paraflin emulsified in water with ammonium oleate as emulsifying agent.
  • such a complex prepared by flocculation in dilute suspension from quantities of carbonate filler and paraffin emulsion proportionate for instance to those used in making a filled'sized paper containing say 20% or more carbonate filler, e. g., parts of calcium carbonate magnesium hydroxide and q 3 partsparaffin in emulsified form, and the flocculated mass is separated from the supernatantliquid and then dried say at 100110 C., there is no evidence of melted paraffin, but on the contrary the fiocculent complex dries out to a powdery mass, non-sticky and non-agglomerant'whether hot or cold, and this complex may be seen by floating it on aqueous ink to possess ink resistant qualities.
  • carbonate filler e. g., parts of calcium carbonate magnesium hydroxide and q 3 partsparaffin in emulsified form
  • this flocculation does not appear to be the result of the action of the carbonate filler with the emulsifying agent, as for example, although an ammonium oleate stabilized emulsion and calcium carbonate magnesium hydroxide mutually flocculate one another, I have found that this carbonate filler has no noticeable fiocculating effect on this stabilizer in the absence of the emulsified paraffin.
  • I may place the fibrous pulp in the beater, or other similar or compounding or mixing or disintegrating or treating machine, then add the paraffin emulsion,a convenient way being in dilute form,-incorporate this thoroughly with the pulp, then add the carbonate filler, then starch if desired and/or alum (attention in this connection being directed to my copending application Serial No. 202;453, filed June 29, 1927).
  • the above order of addition is not i essential, but a convenient and desirable one for several reasons: 1. It allows thorough incorporation of emulsion with the fibre before'the formation of the carbonate fillerparaffin complex; 2.
  • the emulsion be one which is cracked or broken by alum, this action will be prevented by the prior formation of the carbonate filler-paraffin complex.
  • Such cracking by alum would produce freei. e., unemulsifiedparaffin in a form tending to agglomerate into specksor lumps, which would cause trouble on the paper machine.
  • the reaction of the furnish for making my paper will normally be on the alkaline side of the neutral point, that is, will have a pH value higher than 7.
  • An illustrative furnish which advantageously may be used in practicing my invention, to produce for instance a filled sized book or magazine paper which will give an ink test, (i. e., the time required for an ordinary aqueous writing ink at room temperature to strike through a sample of paper when floated thereon) of from one up to several minutes or more, according to circumstances, is as follows:
  • This furnish may be added to the beater in the ordinary way, and then subjected to the usual paper making procedure on a Fourdrinier, cylinder, or other forming, or felting, or shaping, or molding machine, and the paper finished in the usual manner, using the regular machines normally employed for the various processes or of course special machines may be employed if desired.
  • the resultant paper may be used for such purposes as those to which sized filled papers are normally put, including that as a raw stock for further conversion, as for example for coating.
  • the carbonate filler in my as is the filler in other filled papers, is distributed substantially uniformly throughout.
  • My paper has the distinct advantage of possessing age resisting qualities in a unique degree. It is well known that acid conditions in papers are very detrimental to permanence: such conditions are rendered impossible by the use of a carbonate filler. It
  • Such a permanent paper has of course a great advantage for purposes which require preservation of the paper. It also has a decided economic advantage, papers, which inorder to obtain permanency have heretofore'been required to be made with all or a portion of the fibrous furnish consisting of particularly resist-ant cellulose as rag fibre, hanced permanency arising from the carbonate filler-parafiin content, and the absence of be made with a lesser amount of re.- sistant cellulose fibre, or in some cases, in the absence of such resistant fibre. result in economy in the manufacture of such papers, as the resistant celluloses are more exensive than the ordinary fibres substituted therefor.
  • y ployed I intend to include not only rosin but any compound thereof.
  • a pa er comprising fibrous material, carbonate ller and paraflin.
  • a pa r comprising fibrous material, carbonate ller distributed substantially uniforml throughout, and parafiin.
  • rosin as hereinafter em- I do not intend to be 4.
  • a sized paper comprising fibrous material, carbonate filler distributed substantially uniformly throughout, and paraffin.
  • a sized pa er comprising fibrous material, carbonate Her, and paraflin, in the absence of rosin.
  • a sized paper comprising fibrous material, carbonate filler, paraflin, and an aluminum. compound.
  • a sized pa er comprising fibrous material, carbonate ller, paraflin, starch, and an aluminum compound.
  • a sized paper which comprises fibrous material, a filler comprising an alkaline earth metal carbonate, and paraflin.
  • a sized paper which comprises fibrous material, a filler comprising calcium carbonate and a magnesium compound, and paraffin As a new article of manufacture, a sized paper which comprises fibrous material, a filler comprising calcium carbonate and a magnesium compound, and paraffin.
  • a process of making a sized carbonate filled paper comprising admixing with fibrous material paraflin emulsion and carbonate filler, and forming paper therefrom.
  • a process of making a sized carbonate filled paper comprising admixing with fibrous material carbonate filler and paraflin emulsion in the absence of rosin to effect mutual flocculation of emulsion and filler-to a carbonate filler paraflin complex, and forming paper therefrom.
  • a process of making a sized carbonate filled paper which comprises admixing with fibrous material parafiin emulsion and a filler comprising calcium carbonate magnesium hydroxide to effect mutual flocculation of emulsion and filler to a calcium carbonate magnesium hydroxide paraflin complex, and forming paper therefrom.
  • Method of manufacturing filled and sized paper characterized by the employment as a filler of an alkaline compound of an alkaline earth metal in association with emulsified paraffin.
  • Method of manufacturing filled and sized paper characterized by the employment as a filler of an alkaline compound of an alkaline earth metal associated with emulsified paraflin, and the addition of alum as a final step in the-beater.
  • a method of treating paperpulp involving the use of alum and finely divided calcium carbonate which comprises incorporating into the ulp such carbonate together with emulsi ed non-pitchy hydrocarbonmaterial of waxy nature substantially unsaponifiable and chemically inert to acidic and alkaline materials under ordinary conditions of temperature and pressure, and adding alum.
  • filled aper which comprises admixing with fibrous material paraifin emulsion and a filler comprising an alkaline earth metal carbonate to effect mutual flocculation of emulsion and comprising calcium carbonate to effect muv tual flocculation of emulsion and filler to a calcium carbonate paraflin complex, and forming paper therefrom.
  • a process of making a sized carbonate filled paper which comprises admixing with fibrous material parafiin emulsion and a filler which comprises calcium carbonate and a lation of emulsion and filler to a calcium car- Leo

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
US262030A 1928-03-15 1928-03-15 Paper product and method of making the same Expired - Lifetime US1819441A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US262030A US1819441A (en) 1928-03-15 1928-03-15 Paper product and method of making the same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US262030A US1819441A (en) 1928-03-15 1928-03-15 Paper product and method of making the same
GB15504/29A GB333620A (en) 1929-05-17 1929-05-17 Improvements in the manufacture of paper

Publications (1)

Publication Number Publication Date
US1819441A true US1819441A (en) 1931-08-18

Family

ID=10060290

Family Applications (1)

Application Number Title Priority Date Filing Date
US262030A Expired - Lifetime US1819441A (en) 1928-03-15 1928-03-15 Paper product and method of making the same

Country Status (6)

Country Link
US (1) US1819441A (enrdf_load_stackoverflow)
BE (1) BE361091A (enrdf_load_stackoverflow)
DE (1) DE556510C (enrdf_load_stackoverflow)
FR (1) FR675535A (enrdf_load_stackoverflow)
GB (1) GB333620A (enrdf_load_stackoverflow)
NL (1) NL26360C (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1166605B (de) * 1959-05-06 1964-03-26 Freudenberg Carl Fa Verfahren zur Herstellung eines leicht brennbaren, wasserbestaendigen, beschreib- und bedruckbaren Papiers
US5025814A (en) * 1987-05-12 1991-06-25 R. J. Reynolds Tobacco Company Cigarette filters containing strands of tobacco-containing materials

Also Published As

Publication number Publication date
BE361091A (enrdf_load_stackoverflow) 1929-05-31
DE556510C (de) 1932-08-10
FR675535A (fr) 1930-02-11
NL26360C (enrdf_load_stackoverflow) 1932-03-15
GB333620A (en) 1930-08-18

Similar Documents

Publication Publication Date Title
US2754207A (en) Process of improving paper formation
US5061345A (en) Method of making a multiple ply paper product containing an outer ply of reclaimed white office waste
US1819441A (en) Paper product and method of making the same
NO117949B (enrdf_load_stackoverflow)
US1812832A (en) Filled pulp and method of making the same
US2738791A (en) Cigarette paper
US2192488A (en) Method of making paper
US1993750A (en) Composition of matter and process of making the same
US2186609A (en) Method of removing wax from waxed paper stock
US2056209A (en) Paper manufacture
US1607552A (en) Process of producing transparent and waterproof paper
US1803652A (en) Method of sizing carbonate filled paper
US1803651A (en) Method of sizing carbonate filled paper
US1803645A (en) Paper product and method of making the same
US2116768A (en) Sizing paper
US2365833A (en) Process of incorporating polychlorophenols in fiberboard
US1899086A (en) Paper product sized with petroleum hydrocarbons and process of making the same
US1848659A (en) Manufacture of paper
US1762928A (en) Water-resistant paper
US1607519A (en) Paper product and process of making same
US1808068A (en) Manufacture of paper
US1762931A (en) Greaseproof paper or paper which retains its strength in contact with grease
US1803644A (en) Method of sizing paper
US2208574A (en) Paper manufacture
US2199750A (en) Process of making paper