US1912885A - Method of coating - Google Patents

Method of coating Download PDF

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Publication number
US1912885A
US1912885A US428138A US42813830A US1912885A US 1912885 A US1912885 A US 1912885A US 428138 A US428138 A US 428138A US 42813830 A US42813830 A US 42813830A US 1912885 A US1912885 A US 1912885A
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US
United States
Prior art keywords
film
paper
medium
liquid
coating
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
US428138A
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English (en)
Inventor
Brown George Mackenzie
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.)
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
Priority to US585431A priority Critical patent/US1923909A/en
Application granted granted Critical
Publication of US1912885A publication Critical patent/US1912885A/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
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/02—Patterned paper
    • D21H27/04—Patterned paper marbled
    • 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
    • D21H5/00—Special paper or cardboard not otherwise provided for
    • D21H5/02—Patterned paper
    • D21H5/04—Patterned paper marbled

Definitions

  • This invention compri'ses'improvements in or' relating te-processes and apparatus for surfacing sheet material with pigments,
  • One object of the present invention is to provide an improved and inexpensive process which can be carried out mechanically and continuously for the reduction of ornamented sheet material: such as marbled paper, in continuous lengths, or in a successive- 4as, ias,vanaiii Great Britain rem-nar 1:, 1m.
  • the suitable liqui composition may comprise pigmentsin vehicles or media, such as boiled linseed oil, and/or cellul'osic solutions (e. g. asolutioii of a cellulose esteror ether).
  • pigmentsin vehicles or media such as boiled linseed oil
  • cellul'osic solutions e. g. asolutioii of a cellulose esteror ether.
  • composition may also includethinning agents and/or volat' e-solvents.
  • composition j may comprise varnishes,
  • the process according 'to this invention comprises the step of traversing a film-receiving surface past a fixed station over a tray, I trough or the like containing the liquid medium on which the'film is carried, insuch manner that successiveportions in the; length 10 of the film-receiving surface come into contact with'the liquid at the station andrem'ove the film by drawing it along'the surface of the liquid to thestation while the body-of the liquid remains substantially stationary. 7 It has hitherto been propose (see for example British specificationNo.
  • Figure 2 is a (shortened) $11 'of the machine shown in Fi re 1, and
  • the film is formed on the surface of a liquid flotationmedium contained in a tray 10.
  • the paper 11 to be coated is mounted on a reel 12 supfpassing in'der the ported above the tray. From this reel the paper is drawn off and passed over a guide roller 13 and then under a doctor 14 which d'i s into-the liquid in the tray 10 to a depth 0 about .a'quarter of an inc 'In this example the doctor is a flat blade; other cases be constit u' blade 14 taken. over a guide roller 15 and is then wound'on toa reel 16.
  • the blade 14 is located near theback of the tray 10 while near the front thereof the paint or other film-forming material .is deposited on the flotation medium from pots or drospers 17 mounted on abar18.
  • Each of the roppers 17 (of which any desired number may be rovided has a tapered nozzle the outlet .it may mm which is controlledby a needle valve 39 adjustable at. will.
  • the .droppers 17 are adjustable settings.
  • the blade agitator comprisin Betweenthe dropper bar 18 and 14 there is located a mechanical a shaft 19 on which is mounted a series 0 inclined discs 20 so arran ed that adjacent discs are at 'opposite inclinations to the axis of the shaft.
  • the shaft 19 is continuously rotated by a chain drive 21 from a power-driven shaft 22 on mounted.
  • the dropper bar 18 is continuously reciprocated, in a direction transverse to the travel of the paper, by means of a crank 23 and connectmg rod 24,the crank being on a shaft 25 ear driven from a ower shaft 26.
  • the paint or like film-forming liquid is supplied continuously at the front of the tray 10, and
  • the paper is along the bar 18 to any desired at the back of the tray the paper web is continuously traversed through the flotation medium.
  • the liquid delivered from the droppers 17 spreads out naturally over the surface of the flotation medium and forms tray, the film is agitated by the discs 20 which I produce a-wave-form effect. It will be seen therefore that in the operation of this apparatus there is a continuous formation of film which is drawn off along the surface of the flotation medium on to the paper web, with substantially no agitation of the bodyof the medium.
  • a still pool may be formed in the tray 10 by immersing to a slight depth in the flotation medium an open frame 2 about the same width as the blade or doctor 14 and it is of such dimensions that a space is left between the sides of the frame and the adjacent sides of the tray.
  • the paint isdropped into the pool enclosed by the frame, andthe space outside the frame allows the flotation medium'to recover its level, after the slight displacement caused by the dragging As shown in Figure 2 this frame is of action of the paper, without setting up return currents within the pool;
  • the agitator shaft 19 in addition to or instead of being rotated, may have imparted to it a reciprocating motion by means of an eccentric 28 on the shaft 26 and a coupling rod 29.
  • the reciprocation of the shaft 19 will not usually be required where the agitators take the form of oblique discs such as 20, but with other forms of agitator reciprocation of the shaft may be desirable.
  • the agitator may be completely omitted from the apparatus, thus allowing the film to follow its'natural course.
  • a fixed comb or like device, through or past which the film will be drawn, maybe-provided instead of or in addition to the agitator.
  • ox-gall and sprinkling water are used (a) to make float better and (b) to make blobs in the film. These materials may also be employed in carrying out the-process accordin to the present invention.
  • Films of irregu ar patterns may be produced by depositingthe colour on the flotation medium with a spray or by spraying ox-gall, wateror other liquids upon the colour.
  • the flotationme'dium' upon which the film is formed ma be an aqueous solution of carraghe'enmoss, or in.many-cases plain water .may be used.
  • the film-forming materials should have the following charotation medium.
  • vention portions of the sheet to be eoated are treated with a resist, prior to the coating operation, so as to prevent the deposition of the film on said portions.
  • the resist may be constituted by any material which will 'pre-' vent adhesion of thefilm to the surface'of the sheet. In working with certain pigments water and a sugar solution, have been used successfully as resists. It is within the inventionto apply a resist of such a nature that it will not entirely prevent the pickin up of film by the treated portions, but
  • wi 1 only modify the amount of film applied.
  • the resist may be'applied in any convenient way, for example by means of a roll-- er having axpattern in relief, or by spraying througha stencil.
  • the resist may be printed in inkas a design on the paper, the
  • the invention is applicable not only to the coating of paper but also to the treat-. mentof textile material and sheet material generally. In treating textile material.
  • the sheets may be carried by en less band's or the like which are traversed over the surface of the li uid. While it is preferable that the filni' shou d be applied direct to the surface of the paper or other sheet material, it is within the invention to employ a film trans- *fer roller or other intermediate film-receiving surface, whieh takes off the film from the flotation medium and transfers it to the paper or other material togbe treated;
  • two webs of paper may be simultaneously marbled from one tray' by. having pigment supply means at opposite ends of the tray and by drawing ofi' two films at the centre of the tray.
  • both sides of a web may be marbled by traversing opposite sides of the web through different trays.
  • a web marbled in one tray maybe conducted. to another where it will receive a coating of a difierent pigment.
  • a stationary flotation medium or the equivalent thereof, such limitation is not to be construed as precluding a local agitation of the color film on the surface of thejmedium or its movement therealong.
  • a method of coating paper including the steps of supplying coating fluid to a flotation medium to form a coating film on the surface thereof, maintaining the body of the medium substantially stationary, and removing the film from the medium by traversing a paper sheet past a fixed point adjacent the liquid surface to pick up the film and draw additional coating material toward said point over the surface of the stationary flotation medium.
  • a method of coating paper including.
  • a method of coating sheet material including the steps of forming a coating film on the-surface of a bodgsqf liquid while maina fixed point near the surface of the liquid I to cause adherence of the film to the receiving surface and movement of the film over the surface of the li uid.
  • a method of coating including the steps of suppl ing film-forming liquid to a stationary otation medium at one station on the surface thereof, and picking up said film and drawing it along said surface by causing a continuous web to engage the film at another fixed station on said surface.
  • a process according to claim 6 including the additional step of treating portions of the web with a resist prior to the'coating opertantially stationary,
  • a procem accordin to claim 6 includ-) ing the additional step 0 depositin the filmforming fluid on the flotation m mm 50 as to make a patterned film.
  • a process according to claim 6 includ ing .the additional step of confining the deposition of the film-formin fluid to ortions of said medium spaced. rom the gas thereof.

Landscapes

  • Application Of Or Painting With Fluid Materials (AREA)
  • Paper (AREA)
  • Coating Apparatus (AREA)
US428138A 1929-02-15 1930-02-13 Method of coating Expired - Lifetime US1912885A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US585431A US1923909A (en) 1930-02-13 1932-01-08 Apparatus for surfacing sheet material with pigments, varnishes, lacquers, or the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5172/29A GB332190A (en) 1929-02-15 1929-02-15 Improvements in or relating to processes and apparatus for surfacing sheet material with pigments, varnishes, lacquers or the like

Publications (1)

Publication Number Publication Date
US1912885A true US1912885A (en) 1933-06-06

Family

ID=9791038

Family Applications (1)

Application Number Title Priority Date Filing Date
US428138A Expired - Lifetime US1912885A (en) 1929-02-15 1930-02-13 Method of coating

Country Status (5)

Country Link
US (1) US1912885A (fr)
BE (1) BE367806A (fr)
DE (1) DE531655C (fr)
FR (1) FR689830A (fr)
GB (1) GB332190A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2553617A (en) * 1946-03-07 1951-05-22 Fred Fear & Company Coloring composition capable of forming a film on water
CN110217641A (zh) * 2019-04-30 2019-09-10 中国航发南方工业有限公司 发动机叶片盘侧齿侧面粘贴方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2553617A (en) * 1946-03-07 1951-05-22 Fred Fear & Company Coloring composition capable of forming a film on water
CN110217641A (zh) * 2019-04-30 2019-09-10 中国航发南方工业有限公司 发动机叶片盘侧齿侧面粘贴方法
CN110217641B (zh) * 2019-04-30 2020-09-11 中国航发南方工业有限公司 发动机叶片盘侧齿侧面粘贴方法

Also Published As

Publication number Publication date
BE367806A (fr) 1930-03-31
FR689830A (fr) 1930-09-11
DE531655C (de) 1931-08-13
GB332190A (en) 1930-07-15

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