Relieved patterned marrying roll

• US 4,483,728 A
• Filed: 07/14/1980
• Issued: 11/20/1984
• Est. Priority Date: 07/14/1980
• Status: Expired due to Term

• Current Assignee: Kimberly-Clark Worldwide Incorporated (Kimberly-Clark Corporation)
• Original Assignee: Kimberly-Clark Corporation
• Inventors: Bauernfeind, Robert N.
• Primary Examiner(s): Thibodeau, Paul J.
• Application Number:
  US06/168,748
• Time in Patent Office: 1,590 Days
• Field of Search: 428/153, 428/154, 428/166, 428/178, 428/180, 428/172, 156/209, 156/324, 156/292, 156/553, 156/555, 156/582
• US Class Current: 156/209
• CPC Class Codes: A61F 13/51104 the top sheet having a three-dimensional cross-section, e.g. corrugations, embossments, recesses or projections
• CPC Class Codes: A61F 13/539 characterised by the connection of the absorbent layers with each other or with the outer layers
• CPC Class Codes: A61F 2013/15048 for protection against contamination, or protection in using body disinfecting wipes
• CPC Class Codes: A61F 2013/15821 characterized by the apparatus for manufacturing
• CPC Class Codes: A61F 2013/51186 specially shaped topsheets
• CPC Class Codes: A61F 2013/53908 with adhesive
• CPC Class Codes: B31F 1/07 Embossing , i.e. producing impressions formed by locally deep-drawing, e.g. using rolls provided with complementary profilesB31F1/128 takes precedence; corrugating B31F1/20; embossing in combination with printing B41F19/02, B41M1/24; typewriters for embossing B41J3/38; stamping in combination with deforming B41K3/36
• CPC Class Codes: B31F 2201/0735 Pattern inclined with respect to the axis of the roller
• CPC Class Codes: B31F 2201/0738 Cross sectional profile of the embossments
• CPC Class Codes: B31F 2201/0764 the layers being nested
• CPC Class Codes: B31F 2201/0766 the layers being superposed tip to tip
• CPC Class Codes: B31F 2201/0774 Multiple successive embossing operations
• CPC Class Codes: B31F 2201/0782 Layout of the complete embossing machine, of the embossing line
• CPC Class Codes: B31F 2201/0787 Applying adhesive
• CPC Class Codes: B32B 2555/00 Personal care
• CPC Class Codes: B32B 29/005 next to another layer of paper or cardboard layer
• CPC Class Codes: B32B 3/28 characterised by a layer comprising a deformed thin sheet , i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled B32B29/08 takes precedence
• CPC Class Codes: B32B 38/06 Embossing
• CPC Class Codes: B32B 7/12 using interposed adhesives or interposed materials with bonding properties
• CPC Class Codes: D06C 23/04 by shrinking, embossing, moiréing, or crêping
• CPC Class Codes: D21H 27/02 : Patterned paper patterned coatings D21H19/66; embossing B31F1/07; prepared on the paper-making machines D21F11/00
• CPC Class Codes: D21H 5/06 : Apparatus
• CPC Class Codes: Y10T 156/1023 : Surface deformation only [e.g., embossing]
• CPC Class Codes: Y10T 156/1737 : Discontinuous, spaced area, and/or patterned pressing
• CPC Class Codes: Y10T 428/24463 : Plural paper components
• CPC Class Codes: Y10T 428/24562 : Interlaminar spaces
• CPC Class Codes: Y10T 428/24612 : Composite web or sheet

Abstract

A patterned marrying roll especially adapted to combined multiple plies of a tissue sheet at a nip between the marrying roll and an embossing roll. The marrying roll is provided with a pattern of raised laminating elements covering a predetermined percentage of the marrying roll surface which are caused to bear against the raised embossing elements of an embossing roll with the plies of a pillowed tissue sheet therebetween. The pattern of raised elements on the marrying roll surface may be in the form of dots, a recticular grid pattern, or any other pattern of choice. The pattern is preferably aligned at an angle to the machine direction to eliminate bunching or puckering of the tissue sheet between pattern elements. The pattern on the marrying roll may comprise from approximately 10% to approximately 40% of the marrying roll surface. The invention is intended primarily for use in laminating plies of a "pillowed" cellulose sheet together, but may also be advantageously used in the lamination of "nested" sheet plies.

Claims

1. A method of producing a multi-ply soft absorbent cellulose web comprising the steps of:

(a) embossing first and second separate tissue webs on first and second embossing rolls, said embossing rolls having a pattern of raised embossing areas thereon such that a repeating pattern of projecting land areas and recessed areas is produced on each tissue web;

(b) applying adhesive to said projecting land areas of one of said tissue webs;

(c) aligning said separate tissue webs such that a portion of said projecting land areas of said first tissue web are in contact with a portion of said projecting land areas of said second tissue web, with said recessed areas of said separate tissue webs being spaced apart from one another; and

(d) combining said first and second tissue webs at the location of a combiner nip formed between one of said embossing rolls and a relieved patterned marrying roll, said marrying roll having a discrete pattern of raised surfaces thereon,

whereby, said first and second tissue webs are laminated one to another at the locations where said raised surfaces of said marrying roll contact said points of contact of said projecting land areas of said first and second tissue webs at said combiner nip and said resulting cellulose web is debulked only at said pattern of raised surfaces on said marrying roll.

2. The method as recited in claim 1, wherein said marrying roll comprises a substantially non-resilient rubber covered steel roll mounted adjacent one of said embossing rolls and laminating said tissue webs one to another with a pressure of at least 10 pounds per lineal inch.

3. The method as recited in claim 1, further comprising arranging said pattern on said marrying roll in the form of a repeating crosshatch grid comprising from about 10% to about 40% of said marrying roll surface, said pattern having parallel sets of raised elements arranged perpendicular to one another, such that the debulked areas of said tissue web comprise from about 10% to about 40% of the surface area of said cellulose web, and said tissue webs are laminated to one another at from about 10% to about 40% of said points of contact of said projecting land areas of said first and second tissue webs.

4. The method as recited in claim 3, further comprising arranging said pattern on said marrying roll such that said parallel sets of raised elements arranged perpendicular to one another are each arranged at an acute angle to the machine direction of said cellulose web.

5. The method as recited in claim 4, further comprising relieving said crosshatch grid pattern by providing spaces in each of said raised elements between each of said perpendicularly oriented raised elements.

6. The method as recited in claim 1, further comprising arranging said pattern in the form of raised dots of circular or rectangular configuration which cover from about 10% to about 40% of said marrying roll surface, such that the debulked area of said tissue web comprises from about 10% to about 40% of the surface area of said tissue web, and said tissue webs are laminated to one another at from about 10% to about 40% of said points of contact of said projecting land areas of said first and second tissue webs.