US1616903A - Process and apparatus for making paper - Google Patents

Process and apparatus for making paper Download PDF

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Publication number
US1616903A
US1616903A US702482A US70248224A US1616903A US 1616903 A US1616903 A US 1616903A US 702482 A US702482 A US 702482A US 70248224 A US70248224 A US 70248224A US 1616903 A US1616903 A US 1616903A
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US
United States
Prior art keywords
paper
sheet
sheets
plies
making
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
US702482A
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English (en)
Inventor
Kirschbraun Lester
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to US702482A priority Critical patent/US1616903A/en
Priority to DEK89872D priority patent/DE447505C/de
Priority to FR582646D priority patent/FR582646A/fr
Priority to NL27355A priority patent/NL19940C/xx
Application granted granted Critical
Publication of US1616903A publication Critical patent/US1616903A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/70—Multistep processes; Apparatus for adding one or several substances in portions or in various ways to the paper, not covered by another single group of this main group

Definitions

  • This invention relates to improvements in process of making paper, and refers more particularly to a process for making multiply sheets, in which, between certain plies there is interposed a liquid repellent medi- 11m-
  • the liquid repellent medium is preferably interposed betweengiven plies as the paper is being formed, and also by means of the pres ent invention two or more separate sheets may be produced after the paper has been dried, each of which sheets carries liquid repellent material on its surface.
  • FIG. 1 is a somewhat diagrammatic view, partly in side elevation and partly in vertical section; of the cylinder molds of a multicylinder paper machine, on which the process maybe carried out.
  • Fig. 2 is a somewhat diagrammatic view of the dry end of the machine, showing the balance of the hot driers and winding up reels.
  • Fig. 3 is a view, on an enlarged scale, of the application roll and box, forming a feature of the invention.
  • vats designates the vats in which are mounted the cylinder molds 2. Above the cylinder molds are the usual couch rolls 3, blanket'4 and drum roll 5.. Mounted above the blanket 4-are the adjustable depression rolls 6. of which there are two in the present instance. It will be noted that, in this apparatus. the vats are boxes. The object of having two applica tion boxes is to be able to use one in the event the other is out of order, or needs cleaning, and thus avoid the necessity of stopping the operation, or to provide for a plurality of applications.
  • Thebox 7. may lee-provided with an overflow dam 9 and outletpipe 10, rovided with a suitable valve 11.
  • a swinging pipe 12 which can be raised or lowered in the funnel 13, which pump 16 through line 17 to the head box 18.
  • This head box 18 in turn connects through pipe 19 having control valve .20 to the application box 7
  • the emulsion may be continuously applied to the underface of the sheet as it leaves the right hand set of cylinder molds.
  • the coated sheet liquid repellent layer such as asphalt and the like will be interposed between the upper and lower plies of the sheet.
  • Separating rolls 26 .and 27 are preferably provided with high pressure steam. say.'at about 150 pounds pressure.
  • the calendar rolls, as shown more clearly in Fig. 2 may be bypassed and the sheets. carried directly to the winding up reels 29, 30, 31 and 32. These reels are in pairs so that the reel a,- for example, is winding up the new sheet while the reel 6 is unwinding the previously wound sheet, rewinding it :on another spool. The manner in which this is accomplished. is obvious and need not be described in more detail.
  • I first make an emulsion, preferably of a non-adhesive character, of asphalt or other bituminous asses to the left hand i .set of cylinder mol s, it is obvious that a material, with clay or other argillaceous 1 scribed in my issued patents and this speci-' fication need not be encumbered with a detailed description thereof,
  • This previously prepared emulsion may be fed fromthe storage tank 15, in the manner heretofore described, into the application box 7.
  • the screen covered application roll picks up the emulsion and applies it to the underface of the oncoming sheet.
  • the layer of emulsion is, of course, squeezed between the upper and lower, plies from the left and right hand cylinder molds respectively and then as the sheet passes over the driers, the water is re-.
  • theseparatingoperation may be carried on as described, or may be conducted as .a subsequent operation on a se arate piece of equipment not direct'-,
  • a -method of making .waterproofed paper eomprisingaforming on a paper machine, a plurality of fibrousplies, interposing during the paper forming operation a .layeror layers of liquid repellent material between predetermined innerplies by causing the wet plies to pass in'contact with a rotating surface carryin said liquid repellent material, uniting t e plies to form a sheet, separating the sheet at the point of the interposed liquid repellent layer and drawing oft such separated sheets.
  • a method of making avaterproofed paper comprising forming on a paper machine, webs oncertain cylinder molds, forming other webs on other cylinder molds, interposing layers of emulsified waterproofing material between the opposed wet surfaces of certain webs by bringmg certain webs into contact with a rotating element carrying said 'liquid repellent material, in then uniting the Webs and layers into a single sheet and'pas'sing it over the usual driers, in then separating the sheet at said interposed waterproofing layers, and independently removing said separated waterproofed sheets.
  • a process of simultaneously producing a plurality of sheetshaving waterproofing material on the surface thereof comprising forming a plu'ralityof fibrous plies on a paper machine, causing given intermediate plies to be brought into contact with the surface of a rotating element carrying Waterproofing material whereby a layer of waterproofing material is applied 'to said fi brous surface, forcing. the plies together on either side of said layer, passing the same over-driers and then separatin the same into independent sheets at the'pomt'where said waterproof layer is interposed.
  • thecombinationwith cylinder molds for forming a multiply sheet means for applying liquid repellent layer between intermediate plies and means for separatin the sheet along the line of said layer, and means for independently removing the separated sheets. 5.
  • the combination with cylinder molds for forming a multiply sheet 'means for applying liquid repellent layers between intermediate plies and means for separating thesheet alongi; the line of said layers and means for independently removin the separated sheets. 6.
  • Aprocess of simultaneously producing r a plurality of sheets each having waterproof ing material on a surface thereof comprising formin' a plurality of fibrous plies on a paper mac ine, causing given intermediate 20 plies while still wet to have ap lied thereto a pro-formed film of waterproo ng material, forcingthe plies together on-either side of said film to produce a multi-ply shee't,passing the said multi-ply sheets over driers, 25

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  • Paper (AREA)
  • Laminated Bodies (AREA)
US702482A 1924-03-28 1924-03-28 Process and apparatus for making paper Expired - Lifetime US1616903A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US702482A US1616903A (en) 1924-03-28 1924-03-28 Process and apparatus for making paper
DEK89872D DE447505C (de) 1924-03-28 1924-06-10 Verfahren und Vorrichtung zur Herstellung von wasserdichtem Papier, bei dem eine wasserdichte Emulsion mit dem Papier waehrend seiner Herstellung vereinigt wird
FR582646D FR582646A (fr) 1924-03-28 1924-06-11 Perfectionnements aux procédés et appareils pour faire du papier et des articles en papier
NL27355A NL19940C (enrdf_load_html_response) 1924-03-28 1924-06-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US702482A US1616903A (en) 1924-03-28 1924-03-28 Process and apparatus for making paper

Publications (1)

Publication Number Publication Date
US1616903A true US1616903A (en) 1927-02-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
US702482A Expired - Lifetime US1616903A (en) 1924-03-28 1924-03-28 Process and apparatus for making paper

Country Status (4)

Country Link
US (1) US1616903A (enrdf_load_html_response)
DE (1) DE447505C (enrdf_load_html_response)
FR (1) FR582646A (enrdf_load_html_response)
NL (1) NL19940C (enrdf_load_html_response)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2622491A (en) * 1948-10-04 1952-12-23 Patent & Licensing Corp Process of making multiply waterproofed sheets

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE969156C (de) * 1953-11-17 1958-05-08 Josef Will Verfahren und Vorrichtung zur Herstellung von mehrlagigen Papieren, Kartons oder Pappen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2622491A (en) * 1948-10-04 1952-12-23 Patent & Licensing Corp Process of making multiply waterproofed sheets

Also Published As

Publication number Publication date
FR582646A (fr) 1924-12-23
NL19940C (enrdf_load_html_response) 1925-05-15
DE447505C (de) 1927-08-01

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