Abstract:
An embossing roll for producing fibrous products, has a structurized embossing surface suitable to run against an anvil roll. The structurized embossing surface includes male protrusions or female depressions starting from a base circumferential surface of the roll. The embossing pattern is characterized by the following features: the base areas of selected male protrusions or female depressions in the base circumferential surface are different; the heights or depths of selected male protrusions or selected female depressions in a radial direction of the roll and starting from the base circumferential surface are different; and the angles between sidewall sections and the adjacent base circumferential surface of selected male protrusions and/or female depressions are different.
Abstract:
An apparatus for embossing a web substrate is disclosed. The apparatus has a pattern roll having an embossing pattern disposed thereon, an anvil roll juxtaposed in an axially parallel relationship with the pattern roll, and an embossing roll juxtaposed in an axially parallel relationship with said pattern roll. The anvil roll has a hardness of less than about 40 P&J. The embossing roll has a hardness of greater than about 40 P&J.
Abstract:
An apparatus for embossing a web substrate is disclosed. The apparatus has first, second, and third pattern rolls. The first, second, and third patterns rolls each have respective first, second, and third pluralities of raised elements and recesses disposed thereon. A first nip is formed between the first and second pattern rolls and a third nip is formed between the first and third pattern rolls. The raised elements and the recesses of the first pattern roll are matingly engagable with the corresponding plurality of raised elements and recesses of the corresponding second and third pattern rolls. The first and second nips are both adapted to receive the web substrate and emboss the web substrate with the respective and corresponding embossing patterns when the web substrate is disposed within the respective nip.
Abstract:
A process for embossing a web substrate is disclosed. The process comprises the steps of: 1. disposing the web substrate in a circumferentially elongate nip formed between a pattern roll having a circumference and an embossing pattern disposed upon a surface thereof and a continuous belt disposed about at least a portion of the circumference of the pattern roll; 2. providing the continuous belt with a surface speed corresponding to a speed of the web substrate; and, 3. juxtaposing the embossing pattern upon the web substrate while the web substrate is disposed within the elongate nip.
Abstract:
The present invention provides a process for embossing a web substrate. The process comprises the steps of: (a) juxtaposing a first pattern roll in an axially parallel relationship with a second pattern roll forming a first nip; (b) providing the first pattern roll with first pluralities of raised elements and recesses comprising a first embossing pattern; (c) providing the second pattern roll with second pluralities of raised elements and recesses comprising a second embossing pattern; (d) contacting the web substrate at the first nip; (e) embossing the web substrate; (f) juxtaposing the first pattern roll in an axially parallel relationship with a third pattern roll to form a second nip; (g) providing the third pattern roll with third pluralities of raised elements and recesses comprising a third embossing pattern; (h) after step (e), contacting the embossed web substrate at the second nip; and, (i) further embossing the embossed web substrate at the second nip.
Abstract:
Apparatus for continually joining paper webs, comprising a device able to compress the webs (5,6) onto an impression cylinder or roller (4) while the webs advance toward an outlet section of the apparatus. The compressive device includes a roller or cylinder (2) which exhibits a hard outer surface (20) supported by an underlying elastic surface (23).
Abstract:
Paper tissues and paper tissue products such as disposable handkerchiefs, kitchen paper towels, toilet paper and facial tissues exhibiting a soft and smooth surface, and a high bulkiness together with a high strength, in order to provide to the user an enhanced functionality and a high degree of comfort during usage. The present invention also relates to the process of making paper tissue and paper tissue products presenting such characteristics.
Abstract:
Apparatus for continually joining paper webs, comprising a device able to compress the webs (5,6) onto an impression cylinder or roller (4) while the webs advance toward an outlet section of the apparatus. The compressive device includes a roller or cylinder (2) which exhibits a hard outer surface (20) supported by an underlying elastic surface (23).
Abstract:
An embossing device, such as a cylinder or a sleeve, includes on an outer peripheral surface an embossing raised and recessed pattern, to be reproduced on a deformable planar substrate. The cylinder or sleeve bears a photopolymer coating the outer surface which has the raised embossing pattern.
Abstract:
A multi-ply tissue includes a first cellulosic embossed ply having an emboss pattern applied over a portion of its surface and a second cellulosic embossed ply of tissue. The first ply is contact laminated to the second ply so that the primary adhesion between the plies of tissue is the result of contact between cellulosic fibers. The first and second plies contact one another in contact-areas, with the contact areas between the first and second plies defining compliant voids. The contact areas between the first ply and the second ply are elongated and/or rounded contact areas. A method of forming a multi-ply tissue involves conveying a base sheet through a nip between an impression roll and a pattern roll to produce an embossed base sheet having a back side possessing projections, applying adhesive to the back side of the embossed base sheet at spaced apart locations, and applying a flat backing sheet to the back side of the embossed base sheet so that the backing sheet adheres to the back side of the embossed base sheet at said spaced apart locations. A method of producing an embossed tissue involves successively conveying a base sheet through a nip between a first impression roll and a pattern roll, and conveying the base sheet through another nip between the pattern roll and a second impression roll, wherein the second impression roll is made of rubber having a lower hardness than the rubber from which the first impression roll is made.