Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Reexamination Certificate
2006-04-18
2006-04-18
Loney, Donald J. (Department: 1772)
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
C156S290000, C156S292000, C162S109000, C162S111000
Reexamination Certificate
active
07029546
ABSTRACT:
The invention concerns a method for making a sheet of paper comprising at least two crimped cotton-wool-like cellulose plies (20, 40). It consists in: unwinding a first ply (20) in the form of a strip from a reel, embossing it on an embossing unit (10, 12) and forming protuberances at its surface, unwinding a second ply (40) in the form of a strip from a reel, guiding it downstream of the embossing unit (10, 12), superposing the two strips, with their protuberances facing inwards, and in applying a linking means (14, 16) so as to make the two strips integral with each other. Said method is characterised in that immediately upstream of said linking means (14, 16), a tension regulating means (18) is applied in the machine direction on one of the strips, such that the two strips have the same elastic deformation in the machine direction when the linking means is applied. The invention also concerns a product obtained by said method.
REFERENCES:
patent: 6656569 (2003-12-01), Roussel et al.
WO 97/11228, Berger et al, Multilayered Web-Type Tissue Products With an Unembossed, Substantially Freely Mobile Inner Layer; The Production of the Tissue Product, and a Device for use in its Manufature, Mar. 27, 1997.
WO 00/40800, Roussel et al, Absorbent Paper Product Comprising Two Plies, Jul. 13, 2000.
Basler Michel
Laurent Pierre
Roussel Gilles
Ruppel Rėmy
Georgia-Pacific France
Loney Donald J.
Quarles & Brady LLP
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