Abstract:
An apparatus for the application of atomized fluid to a permeable web material is disclosed. The apparatus has a fluid source and a receipt plenum. The fluid source is disposed in proximate fluid contact with the first surface of the web material. The fluid source has a positively pressured permeable roll having atomized fluid and at least one aperture disposed therein. The apertures provide fluid communication between an inner portion of the roll and a surface thereof. The fluid is disposable from the inner portion to the surface through the apertures into contacting engagement with the permeable web material. The receipt plenum has an opening disposed adjacent to the second surface of the web material that provides a source of negative pressure to the second surface of the web material that causes the fluid to traverse through the web.
Abstract:
A printing or embossing unit has at least two cylinders (1, 2). Of the latter, one working cylinder (1) carries at least one printing or embossing stencil (14) on its circumference, in order to emboss or to print, with the aid of the said at least one printing or embossing stencil (14), a web (5) made from a flat material which is conveyed between the said working cylinder and a back-pressure cylinder (2). The embossing stencil (14) extends in each case only over part of the circumference of the working cylinder (1) and is held on the working cylinder (1) with the aid of a fastening device (12, 13, 15). The working cylinder (1) is provided in its interior with a heating device. The fastening device (12, 13, 15) has at least one clamping ring (15) which acts on the circumferential edge (16) of the printing or embossing stencil (14) and clamps against the working cylinder (1).
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 invention relates to a sheet of paper which includes at least one decorative pattern (14, 16) which contrasts visually against the sheet's background (12) and which has a first series of generally truncated protrusions (22) projecting from one side (13) of the sheet and aligned in a design. In the invention, the sheet (10) includes a second series of protrusions associated with the first series (22) and of which each protrusion assumes the approximate form of a low wall projecting from a side (13) of the sheet and having a height which is less than the height of the protrusions (22) of the first series and of which each (24) bridges the two adjacent protrusions (22) of the first series to enhance the visual perception of the decorative unit (14, 16).
Abstract:
A rolled paper embossing dispenser in which the paper is embossed and from which the paper is simultaneously dispensed. The dispenser includes a nip formed by a first embossing roll and a second embossing roll, both rotatably mounted within a cabinet. The first embossing roll has a plurality of spaced-apart annular bands with each annular band including discrete, spaced-apart knuckle projections extending radially from the roll. The second embossing roll includes annular slots and annular extensions arranged in alternating relationship with each annular slot having sufficient width to receive the knuckle projections without contacting any portion thereof as paper is fed through the nip and embossed. A lever or crank is provided for a user to rotationally drive one of the embossing rolls, the other embossing roll rotating only in response to the paper being drawn through the nip such that rotational slippage of one roll with respect to the other will not result in breaking or tearing the web.
Abstract:
Embossing apparatus employing a grooved, finned, deformable outer element for defining a nip with an embossing roll, the deformable outer element having a durometer in the range of about 40 to about 80 shore "A".
Abstract:
Apparatus for applying a continuous embossing pattern to webs of material such as paper or the like and a method for producing an embossing surface. The apparatus includes rollers which receive a web or webs of such material therebetween and removable embossing plates secured to the surface of the rollers and having an embossing surface for embossing the webs. The rollers are constructed such that they have magnetic properties whereby the embossing plates which are comprised of magnetically attracted material can be held against the roller surface. The plates are positioned in closely adjacent relationship with respect to each other such that they provide a continuous embossing pattern around the surface of the roller. The plates and the rollers also include mutually engaging registering means which permit the plates to be accurately aligned with respect to the roller surface. The plates can thus be readily removed or replaced in the event that they become worn or damaged or in the event that it is desirable to change the embossing pattern frequently. The embossing pattern can be formed in the surface of each of the embossing plates by means of a method of coating the plate surfaces with a photo-chemical resist material, laying a negative of the desired pattern over the photo-chemical coating, directing light through the negative to cause selective deterioration of the coating, and subjecting the plate to a caustic chemical, wash chemical, or etchant to etch the desired pattern into the surface of the plate. The plate may, if necessary, be further machined in order to increase the depth of the etching and to improve the definition and clarity of the embossing pattern.
Abstract:
AN APPARATUS AND PROCESS FOR FORMING A UNIFORM EMBOSSED LAMINATE. A UNIFORM PATTERN IS APPLIED TO THE PLASTIC LAMINA OF A LAMINATE BY UTILIZING A CURVILINEAR CROWN ON THE ROLL TO COMPENSATE FOR THE DEFLECTION OF THE EMBOSSING AND BACKUP ROLLS. THE LAMINATING PROCESS INCLUDES THE STEPS OF EMBOSSING A UNIFORM PATTERN INTO THE OUTER SURFACE OF A FILM OF THERMOPLASTIC POLYMRIC MATERIAL ADHERED
TO A HARD PLATE-LIKE SUBSTRATE BY MEANS OF THE EMBOSSING ROLL AND A BACKUP ROLL WHILE THE FILM IS AT AN EMBOSSING TEMPERATUE. AFTER EMBOSSING, THE FILM IS RAPIDLY COOLED TO SET THE EMBOSSED PATTERN.