Abstract: Toilet paper, paper towel and facial tissue products (10) are presented. Information may be placed, through printing or embossing, on the toilet paper, paper towels and facial tissues. The information (62) may comprise advertisements, coupons, prizes (such as stickers and crossword puzzles), games or other promotional materials. In addition, information (62) may be placed on a sheet separate from the toilet paper and/or paper towels and/or facial tissues. The information sheet may be then be placed in conjunction with the toilet paper, paper towel or facial tissue by rolling or by interleaving (16) the information sheet with the toilet paper, paper towel or facial tissue. In another aspect, different information may be place on two or more sheets to convey a story (39) or other information. The information (72) may, for example, be used to help potty train children, or to teach children numbers or the alphabet.

Abstract: A method for marking a watermark-type pattern onto at least part of an absorbent paper sheet is described. The method involves stress-deforming the sheet by making it pass between at least one first roll and at least one second roll. A film of additive is applied in unheated manner to at least one of the sheet surfaces during the marking stage, thereby enhancing watermark formation. Additionally described is an absorbent paper sheet including at least one cellulose web ply which is made by the above method.

Abstract: A method for marking a watermark-type pattern onto at least part of an absorbent paper sheet is described. The method involves stress-deforming the sheet by making it pass between at least one first roll and at least one second roll. A film of additive is applied in unheated manner to at least one of the sheet surfaces during the marking stage, thereby enhancing watermark formation. Additionally described is an absorbent paper sheet including at least one cellulose web ply which is made by the above method.

Abstract: The present invention relates to a method of manufacturing a coated paper having at least one mark resembling a watermark, the method being characterized in that said mark is made after the drying step which follows the last coating operation, by performing steps in which: a) a re-wetting solution is applied to at least one face of the coated paper, in one or more determined zones; and b) pressure and heat are applied in said re-wetted zone(s) of the coated paper so as to evaporate said solution and densify the coated paper in said zone(s) relative to the remainder of the paper. The present invention also provides a coated paper including at least one mark resembling a watermark, characterized in that one or more determined zones of the coated paper present a reduction in thickness relative to the remainder of the coated paper, the density per unit area in said zone(s) of the coated paper being identical to that in the remainder of the paper.

Abstract: The present invention is directed to a press fabric having an anti-rewet scrim or “barrier” within the internal structure of a press fabric, and a method for making same. External materials are not necessary in creating the barrier. In other words, the existing material is modified to create a natural barrier to prevent water migration back to the press fabric surface.

Abstract: This invention pertains to security paper and methods of making such security paper. The invention comprises a light-colored base paper having a non-protection area of a first thickness, and a protection area of a second thickness on at least one major surface of the base paper wherein the first thickness is greater than the second thickness. The base paper comprises colorant whereby the protection area exhibits a translucence when viewed using transmitted light, and exhibits the colorant as a darker color indication, relative to the non-protection area, when viewed using reflected light. Transmission of light through a combination of paper fibers and the colorant of the invention, both being disposed at the protection area, is discernibly different from transmission of light through the non-protection areas of the base paper, when viewed with a human eye.

Abstract: Security paper (1) has a security zone (2) for providing protection against mechanical falsification. The security zone comprises a set of cells (3) indented in the paper and optionally interconnected by indented link portions, the thickness of the paper being substantially uniform throughout its area that is complementary to the cells (3) and to the link portions in the security zone (2).

Abstract: This invention pertains to security paper and methods of making such security paper. The invention comprises a light-colored base paper having a non-protection area of a first thickness, and a protection area of a second thickness on at least one major surface of the base paper wherein the first thickness is greater than the second thickness. The base paper comprises colorant whereby the protection area exhibits a translucence when viewed using transmitted light, and exhibits the colorant as a darker color indication, relative to the non-protection area, when viewed using reflected light. Transmission of light through a combination of paper fibers and the colorant of the invention, both being disposed at the protection area, is discernibly different from transmission of light through the non-protection areas of the base paper, when viewed with a human eye.

Abstract: A method and apparatus for making patterned paper. A printer patterning the paper is arranged in a patterning unit arranged in a paper machine, the printer patterning a paper web being made in the paper machine. The printer is preferably an ink-jet printer. The paper web patterned by the patterning unit can be coated by a coating unit arranged in the paper machine.

Abstract: A method for making a paper sheet comprising at least one region which is thinner than the rest of the sheet. According to the method, a first paper layer (3) is formed on a wire in a first wet end of a paper-making machine, a second paper layer (5) is formed on a wire in a second wet end of the paper-making machine, one of the two paper layers has a number of localized tinner regions (8) so that the thickness (e2) of said paper layers in said regions is up to 50% less than the thickness (et) of the rest of the sheet, and the two layers are joined together and dried. The resulting paper may be used in banknotes or checks.

Abstract: This invention pertains to security paper and methods of making such security paper. The invention comprises a light-colored base paper having a non-protection area of a first thickness, and a protection area of a second thickness on at least one major surface of the base paper wherein the first thickness is greater than the second thickness. The base paper comprises colorant whereby the protection area exhibits a translucence when viewed using transmitted light, and exhibits the colorant as a darker color indication, relative to the non-protection area, when viewed using reflected light. Transmission of light through a combination of paper fibers and the colorant of the invention, both being disposed at the protection area, is discernibly different from transmission of light through the non-protection areas of the base paper, when viewed with a human eye.

Abstract: A non-through air dried paper web and method of making such a paper web are disclosed. The paper web includes at least two regions of different density and at least two regions of different basis weight. In one embodiment, the paper web includes a relatively high basis weight continuous network region, a plurality of discrete, relatively low basis weight regions dispersed throughout the relatively high basis weight continuous network region, and a plurality of discrete, intermediate basis weight regions circumscribed by the relatively low basis weight regions.

Abstract: A method for authenticating a textile product, wherein a colorless composition is applied to at least one portion of at least one thread of the textile product. The composition comprises one of a pair of a colorformer and an activator which react when mixed to produce a spectral response. The textile product is authenticated as genuine by applying the other of the pair of the colorformer and activator to at least one portion of the at least one thread to produce the spectral response. The textile product may be a thread or a woven label.

Abstract: The invention relates to security paper and in particular to a method for the manufacture of security paper that is provided with high-quality watermarks. In particular such a method comprises forming a papermaking suspension comprising cellulosic fibers and polyvinyl alcohol fibers, which polyvinyl alcohol fibers are soluble in water at temperatures of from 95 to 100 degrees C, dewatering the papermaking suspension through an emboseed wire mesh or other embossed means, wherein the embossing creates a profile of peaks and troughs corresponding to the light and dark areas of the watermark, and the formed paper after dewatering with the watermark feature is thereafter dried to provide the resulting security paper.

Abstract: Anti-falsification paper is provided in which a thread is exposed at window portions provided on the surface of the paper, and which does not produce any cockles even when wound up continuously in a roll and has good appearance in terms of design. This anti-falsification prevention paper is combination paper having at least two paper layers including an outermost layer and an inner layer. Window portions are formed in the outermost layer at intervals in a longitudinal direction of the paper. In the window portions there are formed watermarks of letters or pictures, and a thread inserted between the outermost layer and the other layer is exposed at these window portions. The ratio between the length (X) of the window portions in the longitudinal direction of the paper and the length (Y) in the same direction of non-window portions between the window portions is set at 3:1 to 1:2 to securely prevent the formation of cockles during the winding of paper.

Abstract: The invention relates to improvements in security features in paper and in particular to a method of making paper and transparentising selected areas of paper to provide enhanced security features. The invention thus provides a method of making paper comprising the step of depositing fibers (12) onto a support surface (13) to form a porous absorbent sheet (14), applying a transparentising resin to at least portion of said porous sheet and subsequently impregnating the porous sheet with a sizing resin.

Abstract: In a method for providing papers of value with authenticity features, a homogeneous mixture is produced in a defined concentration from a feature substance present in powder form and a gas. This mixture is ejected at high speed from at least one nozzle disposed at a given distance from the paper web and transferred onto the running paper web.

Abstract: Security paper carries an intricate tactile surface profile pattern which has been imparted to the paper during its manufacture, at a stage after initial de-watering but before final drying, by passing the paper through a nip between a forming surface corresponding to the desired pattern and a backing surface. The tactile pattern is of excellent durability, and its intricacy offers a high degree of security. The tactile pattern is visible when viewed under low angle light, which facilitates verification or authentication of security documents made using the patterned paper.

Abstract: A method of producing watermark paper comprising forming a patterned wire by fixing and bonding a lace to a cloth wire for papermaking, fitting this patterned wire to a cylinder mould of a cylinder-vat machine or a dandy roll as a face wire, and making paper by using the cylinder mould or the dandy roll to which the patterned wire is fitted. This method can easily and economically produce watermark paper having a delicate and complicated lace pattern in excellent gradation.

Abstract: This invention relates to a method of making sheet materials and security paper having partially embedded therein an elongate security element which is at least substantially exposed at one surface of the sheet at a plurality of spaced locations, which method comprises the steps of depositing fibres onto a moving support surface, supplying an elongate security element to overlie rotatable embedment means, which embedment means comprise a plurality of spaced-apart raised portions having recesses therebetween, introducing the security element into the fibres with rotation of the embedment means such that some fibres move into said recesses between the security element and the embedment means so that said security element is covered by fibres, and substantially preventing fibres from penetrating between the raised portions and the overlying security element.

Abstract: Uncreped throughdried basesheets can be made with the caliper of the basesheet being independent of the basis weight of the basesheet. Multi-ply wipers and towels produced by plying together two or more of such basesheets having a relatively low basis weight can provide products with improved caliper and absorbency for a given strength level and the amount of fiber used.

Abstract: Paper having an unique twill weave wiremark produced using a dandy roll in which the outer screen bears has a twill weave; the dandy roll and the papermaking process are also disclosed.

Abstract: To quench the fluorescence generated by anionic optical brighteners, virtually colourless, water-soluble, cationic compounds are used which contain at least one cationic group per molecule or per repeating structural unit and at least two nitro group-free naphthalene-peridicarboxylic acid imide groups per molecule or at least one such group per repeating structural unit.

Abstract: A method of testing security papers with respect to the positions of a safety thread and water marks to detect errors in the paper is performed by a linewise scanning of a finished paper web. The web has at least two point like measuring marks inserted into it in addition to the water marks, whereby impulses which are originated from these measuring marks are evaluated and the sheet width and the sheet distortion are calculated by comparing the x-y positions of the individual measuring marks with each other. The measuring marks are sharpe edged and rich in contrast. The given edge impulse is evaluated.

Abstract: Imaged microcapsule-coated paper, e.g. pressure-sensitive copying paper, is produced by imaging paper by means of laser energy and then applying a coating of microcapsules over the image. The image may be a manufacturer's name, logo or trademark, and may be applied at high speed on the paper machine on which the paper is produced or on the coating machine used to apply the microcapsule coating.

Abstract: A method of applying a "pseudo watermark" to paper, comprises the steps of preparing a paper containing a suitable amount of a thermally sensitive material, the presence of which renders the translucency of the paper variable by temperature change, and subsequently applying heat to a part of the surface of the paper in a manner to cause a region of the paper to become semi-translucent. Apparatus suitable for applying heat to the paper is also disclosed.

Abstract: A material (1) in the form of sheets or a web is provided with a watermarklike pattern (12) in the form of a text, figure or similar identification mark visible or displayable in transmitted light by means of relieflike mechanical working off of material, for example grinding, milling etc., corresponding to the desired pattern (12).

Abstract: Security features for authentification of currency paper are incorporated within the paper during the paper making process. Various codes are incorporated within the paper for viewing by means of transmitted light. In one embodiment the identifying indicia is microprinted on thin strips of a carrier material which dissolves during the dewatering and drying stage of the paper making process. The microprinted indicia remains intact and is readable by means of transmitted light yet is neither legible nor reproductible with reflected light.

Abstract: A dandy roll useful in producing paper bearing a watermark which simulates oxford cloth and a papermaking process using the same are disclosed.

Abstract: A sheet material such as paper is provided during manufacture with an elongate element partially disposed within the thickness of the paper sheet but exposed at spaced locations one one side of the sheet. The paper may be used in making security documents such as banknotes and checks.

Abstract: Compositions and method for producing chemical watermarks in finished paper products, the watermarks being produced by applying to the surface of the paper a synthetic resin composition having a chemical grouping therein capable of being insolubilized upon exposure to high frequency radiation, and thereafter exposing the resin composition to such high frequency radiation to insolubilize the resin.