Stack of fan folded material and combinations thereof
View Patent ↗The invention relates to a stack of fan folded material and related systems and processes. The stack includes at least two clips of fan folded material. Each clip includes a plurality of fan folded sheets, with each sheet joined to at least one adjacent sheet by a weakened line. Each clip is joined to an adjacent clip by a last sheet of one clip being interfolded with or adhesively joined to a first sheet of a succeeding clip.
1. A process for forming a stack of fan folded material comprising:
providing an elongate web of material which travels in a length direction of the web of material;
weakening the elongate web of material along a plurality of lines formed in the length direction of the web of material to form a plurality of panels joined to adjacent panels along the plurality of lines;
folding the plurality of panels together;
cutting the plurality of panels to form at least two clips, each clip having a plurality of sheets wherein every sheet within the clip is joined to any adjacent sheet within that clip by a weakened line;
joining each clip to an adjacent clip by interfolding a bottom portion of one clip to a top portion of a succeeding clip; and
adding a liquid at an add-on rate of about 25 to about 600 weight percent based on a dry weight of the web of material.
2. The process of claim 1 wherein weakening comprises perforating along the plurality of lines.
3. The process of claim 1 wherein folding comprises folding the plurality of panels along the length direction of the web of material.
4. The process of claim 1 further comprising separably joining at least two clips in the stack of fan folded material with a non-interfolded relationship.
5. The process of claim 1 further comprising folding each sheet upon itself at least once.
6. The process of claim 1 wherein cutting the plurality of panels occurs in a direction perpendicular to the length direction of the web of material.
7. A process for forming a stack of fan folded material comprising:
(a) providing a elongate web of material which travels in a length direction of the web of material;
(b) weakening the elongate web of material along a plurality of lines formed in the length direction of the web of material to form a plurality of panels joined to adjacent panels along the plurality of lines;
(c) folding the plurality of panels together to form a first ribbon of panels;
(d) repeating steps (a) to (c) for at least a second elongate web of material and thereby forming at least one succeeding ribbon of panels;
(e) joining the first ribbon to the succeeding ribbon by separably joining a top portion of the first ribbon to a bottom portion of the succeeding ribbon to form a ribbon stack wherein each panel within each ribbon of panels is joined to any adjacent panel within that ribbon of panels by a weakened line; and
(f) adding a liquid at an add-on rate of about 25 to about 600 weight percent based on a dry weight of the elongate web of material.
8. The process of claim 7 wherein weakening comprises perforating along the plurality of lines.
9. The process of claim 7 wherein folding comprises, folding the plurality of panels along the length direction of the web of material.
10. The process of claim 7 wherein separably joining comprises adhesively joining or interfolding.
11. The process of claim 7 further comprising folding each sheet upon itself at least once.
12. The process of claim 7 further comprising cutting the ribbon stack to form a plurality of clips of fan folded material.
13. The process of claim 7 wherein cutting the ribbon stack occurs in a direction perpendicular to the length direction of the web of material.