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Publication numberUS1687140 A
Publication typeGrant
Publication dateOct 9, 1928
Filing dateNov 2, 1922
Priority dateNov 19, 1921
Publication numberUS 1687140 A, US 1687140A, US-A-1687140, US1687140 A, US1687140A
InventorsAnton Pleyer
Original AssigneeEbart Geb
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Watermarked paper
US 1687140 A
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Description  (OCR text may contain errors)

0er. 9, i1928. 1,687,140

A. PLEYER WATERMARKED PAPER Filed Nov. 2. 1922 Patented Oct. 9, 1928.

UNITED STATES 1,681,140 PATENT oFEicE- ANTON PLEYER, OF SPECHTHAUSEN, NEAR EBEBSWALDE, GERMANY, ASSIGNOB TO GEBR. EBART, OF BERLIN, GERMANY, A CORPORATION OF GERMANY.

WATERMARXED PAPER.

Application led November 2, 1922, Serial No.

My invention relates to improvements in water-marked paper. As is known in the art water-marks are impressed in the body of the paper by means of a gauze wire cylinder provided in the paper making machine and having the design of the water-mark applied thereto in the form of wires soldered to the cylinder, or having the said design pressed thereon in intaglio or in relief.

The water-mark produced in the body of the paper is more distinct in paper made from pulp composed of short fibers, than in paper made from long fiber pulp. However, the strength of paper made from pulp consisting of short fibers is small. Therefore, Where paper of high st-rength is required, such for example as is used for making bank notes, legal documents, and the like, the pulp is prepared as far as possible without reducing the fiber materiali, But in a paper made from such pulp the water-marks are not very distinct.

One of the objects of the improvements.' is to provide a water-marked paper of high strength is obtained in which the Watermarks are sharp and distinct. lVith this object in View my invention consists in making the paper from two layers of pulp of differentcharacter, and producing the water-markin one of said layers. In the preferred form, the body of the paper is made from pulp having long fibers and having a layer applied thereto which consists of pulp composed of short fibers, the water-mark being applied to the layer composed of short fibers.

For the purpose of explaining the invention an example embodying the saine has been shown in the accompanying drawing, in which,

Fig. 1, is a plan View showing the improved paper, and

Fig. 2, is a diagrammatical cross-section illustrating the composition of theimproved paper, the paper being shown enlarged in cross-section.

In the manufacture of my improved paper I first make a body by passing pulp composed of long fibers over the Wire gauze of a paper making machine, and thereafter while thislongfiber body or layer still in a pulpous condition passing thereon pulp of a composition suitable for producing distinct Water-marks, and more particularly a pulp composed of short fibers, which pulp provides a thin layer on the body composed of long 598,471, and in Germany November 19, 1921.

fiber material. The water-marks are produced in the thin layer composed of short iber material, Where they appear in sharp 1nes. A

In a modification of the process the Watermarks are made more conspicuous by combining layers of pul of different colors. For example, if the lfiody of t-he paper is white, while the surface layer is blue, the design made on the gauze Wire cylinder in relief will pass through the thin colored layer and press the same aside, so that the white paper will be Visible through the blue surface and the water-mark appears in distinct lines. IVhere the design of the watermark is made on the cylinder in intaglio the bluish pulp will be drawn together along the lines of the design, and the water-mark appears more distinctly than in paper prepared according to known methods. The method in which layers of pulp of different colors are combined gives good results also if the composition -of the layers of pulp is the same and if both consist of long fibers, because even withpulp composed of lona fibers the effect described above is attaine to a certain degree, though, of course, the best results are obtained if one or both of the layers of pulp are composed of short fibers.

In a further modification of the process I applythe second or surface .layer of short fiber pulp in the form of a stripe which is narrower than the body of the paper. In this case the margins of the stripe will gradually and irregularly merge into the body and impart a characteristic appearance to the surface. The imitation of the paper thus prepared for example by printing is difficult and almost impossible, so that the paper thus prepared gives Valuable protection as against counterfeiting documents or bank notes, particularly if the pulp a plied to the body of the paper and the bo y are different in color, in which case the irregular and gradual merging of the colored stri e into the body of the paper is particular y conspicuous. In each case, however, the second pulp layer is formed on top of the first While the latter is still in a pulpous condition. I do not .form two separate layers or Webs of pulp and then bring these two webs together, as has been done in the prior art, but I form a second layer of pulp directly upon'the first, that is I deposit the pulp of the second layer as such and not in the form of a previously formed layer or web. When two previously formed layers or Webs are brought together, even if they are still in a moist condition, they cannot hold together as Well as when loose pulpis applied to a previously formed layer or Web which is still moist, since the loose pulp Will as it Were flow into the layer of pulp forming the foundation of the paper, and the fibers will become interlocked to a much greater degree.

In the figures I have shown a sheet of'paper made according to my improved. method. The body a of the sheet is made from a pulp composed of long fibers and it has a narrow stripe b applied thereto which is made from short fiber pulp. The layers of the paper fibers and a short fiber layer deposited as d loose pulp upon only a predetermined seetion of said body While the latter is still in a pulpous state, the fibers of said body and layer being intimately interlocked and said short fiber layer merging into said body along an irregular line visible upon a surface thereof. A

y In testimony whereof I hereunto affix Amy signature.

' ANTON PLEYER.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4032394 *May 20, 1975Jun 28, 1977Ernst Ludvig BackMethod of making wet-pressed fiberboard of high resistance to bending
US5804036 *Feb 21, 1997Sep 8, 1998The Procter & Gamble CompanyPaper structures having at least three regions including decorative indicia comprising low basis weight regions
US5820730 *Feb 21, 1997Oct 13, 1998The Procter & Gamble CompanyPaper structures having at least three regions including decorative indicia comprising low basis weight regions
US5871615 *Jun 7, 1995Feb 16, 1999The Wiggins Teape Group LimitedPassing an intially dewatered, but not yet fully dried paper web through a nip between a forming surface of desired pattern and a backing surface to impart intricate tactitle surface profile pattern, prior to drying
US6136146 *Aug 22, 1997Oct 24, 2000The Procter & Gamble CompanyPaper web comprising at least two regions of different density disposed in a first nonrandom, repeating pattern, and atleast two regions of different basis weight disposed in second nonrandom, repeating pattern different from first
US6203663May 5, 1995Mar 20, 2001Kimberly-Clark Worldwide, Inc.For paper sheets, such as tissue sheets useful for facial tissue, bath tissue
US6251226Feb 19, 1999Jun 26, 2001Cartiere Fedrigoni & C. S.P.A.Apparatus for manufacturing papers with watermarks or patterns
US6368455May 31, 2001Apr 9, 2002Appleton Papers Inc.Regions of paper have different light tranmission and reflection characteristics; uniform fiber density
US6464831Mar 17, 2000Oct 15, 2002The Procter & Gamble CompanyMethod for making paper structures having a decorative pattern
US6531032Mar 14, 2002Mar 11, 2003Appleton Papers Inc.Paper overcoated iwth protective coating zones; variaitons in thickness; translucence segments
US6554963Nov 2, 1998Apr 29, 2003Albany International Corp.Embossed fabrics and method of making the same
US6582556Mar 14, 2002Jun 24, 2003Appleton Papers Inc.Security paper and methods for production thereof
US8182651Feb 9, 2007May 22, 2012ArjowigginsSheet material comprising at least one watermark having a colored shade
EP0229645A1 *Jan 9, 1987Jul 22, 1987GAO Gesellschaft für Automation und Organisation mbHProcess for producing an antifalsification paper with an incorporated security element
WO1996035018A1 *Apr 26, 1996Nov 7, 1996Kimberly Clark CoDecorative formation of tissue
WO2005121449A1 *Jun 6, 2005Dec 22, 2005Wassermann & Co PapyrolinfabriUse of a multi-layered paper
Classifications
U.S. Classification162/110, 162/140, 162/130, 162/134, 162/188
International ClassificationD21F1/00, D21F1/44
Cooperative ClassificationD21F1/44
European ClassificationD21F1/44