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 and work material for making embossed blanks for sample packages and other free-standing three dimensional display items from a sheet-type work material includes a printer for printing a graphic image on the work material, and a processing mechanism for performing work operations on the work material. The sheet-type work material has a top layer of sheet material, an intermediate layer of sheet material, and a carrier layer of sheet material, with a first layer of adhesive material bonding the top and intermediate layers of sheet material together, and a second layer of adhesive material bonding the intermediate and carrier layers of sheet material together. Any, all, or a combination of the top, intermediate, or carrier layers of sheet material may have shape retaining deformability characteristics to aid in holding an embossed design in the work material. In operation, the printer prints an image onto the work material, which is then advanced to the processing mechanism where a creaser places indented fold lines into the work material, a knife cuts the blank from the work material, and an embosser, moving in either a rasterwise or vectorial motion, embosses a design into the work material. The blank can then be removed from the work material and erected into a package or other free-standing three dimensional display item.
Abstract:
The present invention provides a process which in a preferred embodiment includes the steps of. (a) applying a hot melt adhesive to a heated roll rotating at an initial tangential speed; (b) milling the adhesive to a reduced thickness and accelerating said adhesive through a series of metering gaps between a plurality of adjacent heated glue rolls; (c) applying the adhesive to a conformable glue application roll rotating at a tangential line speed which is higher than the initial tangential speed; (d) applying the adhesive to a first patterned embossing roll which is engaged with a second patterned embossing roll having a complementary pattern to the first embossing roll, the embossing rolls being heated; (e) passing a web of sheet material between the first and second embossing rolls at the tangential line speed to simultaneously emboss the web and apply the adhesive to the web, such that the adhesive forms an adhesive pattern between embossments; (f) transferring the web from the second embossing roll to the first embossing roll; (g) stripping the web from the first embossing roll; and (h) cooling the web.
Abstract:
The present invention is a method of applying a chemical treating agent to a cellulose web. The invention is further a means of increasing the bulk, absorbency and pattern definition in an embossed cellulose web without losing softness in the web. Finally, the invention includes products produced by the foregoing processes.
Abstract:
The present invention relates to a sheet (1, 2) of absorbent paper, in particular made of cellulose cotton and of a specific surface weight between 10 and 40 g/m2, comprising a first embossed zone such as is provided by embossing between an undeforming cylinder (A12) fitted with protrusions and a cylinder fitted with a resilient cladding (C) in such manner that the sheet (1, 2) comprises on one side in particular frustoconical salients (120, 110) of which the tops are situated substantially in one plane. The salients (110, 120) corresponding to recesses on the opposite side, the sheet being characterized in that the first embossed zone (110) constitutes a background base pattern of which the number of salients of height H1 relative to the plane is greater than 30 per cm2, and in that it comprises at least a second pattern (G) constituted of salient-free zones of which the height H2 relative to the plane is greater than H1. The invention furthermore concerns the manufacture of such a sheet and to apparatus designed to implement the method.
Abstract translation:本发明涉及一种吸收纸的片材(1,2),特别是由纤维素棉制成并且具有10至40g / m 2的比表面重量的吸收纸片材(1,2),包括第一压花区域,例如通过在不成形 圆柱体(A12),其装配有突起,以及装有弹性包层(C)的圆柱体,使得片材(1,2)的一侧特别地包括顶部位于其中的截头圆锥体(120,110) 一架飞机 对应于相对侧的凹部的凸起(110,120),其特征在于,所述第一压纹区(110)构成背景基底图案,其高度H1相对于所述平面的极数大于30 每平方厘米,并且其包括至少第二图案(G),其由相对于该平面的高度H2大于H1的无凸区构成。 本发明还涉及这种片材的制造以及设计用于实施该方法的设备。
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 method for making embossed blanks for sample packages and other free-standing three dimensional display items from a sheet-type work material. The sheet-type work material has a top layer of sheet material, an intermediate layer of sheet material, and a carrier layer of sheet material. In operation, a printer prints an image onto the work material, which is then advanced to a processing mechanism where a creaser places indented fold lines into the work material, a knife cuts a blank from the work material, and an embosser embosses a design into the work material.
Abstract:
A method of copying a three-dimensional surface having X, Y, and Z dimensions forms a translucent impression of the surface to be copied and then captures a two-dimensional image of the translucent impression. The captured image has X and Y dimensions and a grayscale value for each X, Y coordinate of the image. Then, the method converts each grayscale value of the image to a Z height value, thereby generating a digital file of X, Y, and Z values. The digital file may then be provided as an input to a numerically controlled machine, which can be operated to reproduce the surface to be copied. The method of the present invention finds particular application in digitizing handcrafted emboss dies and the like.
Abstract:
A method for producing a multi-ply web of flexible material, such as paper and nonwoven material. At least one first ply is separately embossed by a first embossing means to form a plurality of crests and depressions and is combined with at least one second ply. After combining the first and second plies, they are brought into a nip between a spiked roll and a smooth rigid roll, the spiked roll having a plurality of protuberances which are adapted to press together the first and second plies in points or spots to cause a mechanical ply bonding between the at least two plies. The first embossing means and the spiked roll are in register with each other so that the protuberances of the spiked roll will hit at least some of the depressions of the ply facing the spiked roll. The invention also refers to a multi-ply web produced by the method.
Abstract:
The invention relates to apparatus clamping at least one paper or non-woven sheet and including two cylinders which run substantially tangent to one another. At least one of the cylinders has on its surface and in a zone that makes contact with the sheet a clamping band having first salient elements. The interaction of the two cylinders in the presence or absence of the sheet subtends an active surface during the rotation of the cylinders. In the invention, at least one of the cylinders has on its surface and in a zone (nip) that makes contact with the other cylinder by means or not of the sheet a load compensating band having second salient elements. This band is selected so that the variation of the consecutive instantaneous active surfaces of the clamping band and of the load compensating band is less than the variation of the consecutive instantaneous active surfaces of the clamping band alone. The invention applies in particular to converting paper or non-woven sheets in the manufacture of absorbent paper items, such as tissues or table napkins.