Structures useful as cleaning sheets

Details Structures useful as cleaning sheets Structures useful as cleaning sheets

A - Human Necessities

47

L

A47L 13/16 (2006.01) A47L 13/17 (2006.01) A47L 13/20 (2006.01) B08B 1/00 (2006.01) B32B 3/28 (2006.01) B32B 5/26 (2006.01) B32B 7/14 (2006.01) C11D 3/18 (2006.01) C11D 3/50 (2006.01) C11D 17/04 (2006.01) D04H 1/46 (2006.01) D04H 13/00 (2006.01)

Patent

CA 2291124

Disclosed are cleaning sheets having at least two regions, where the regions are distinguished by basis weight. In particular, the cleaning sheet comprises one or more high basis weight regions having a basis weight of from about 30 to about 120 g/m2 and one or more low basis weight regions, wherein the low basis weight region(s) have a basis weight that is not more than about 80 % of the basis weight of the high basis weight region(s). Also disclosed are cleaning sheets having substantial macroscopic three-dimensionality, in addition to having multiple basis weights. Optionally, the macroscopically three-dimensional cleaning sheets can comprise a scrim material, which when heated and then cooled, contracts so as to provide a macroscopic three-dimensional structure. Macroscopic three-dimensionality is described in terms of "average height differential", as well as the "average peak-to-peak" distance. Processes for using said sheets, benefits of said processes, and articles of manufacture are disclosed.

Cette invention se rapporte à des textiles d'entretien comportant au moins deux régions distinctes par leur masse surfacique. Ces textiles d'entretien comportent notamment une ou plusieurs régions à masse surfacique élevée, comprise approximativement entre 30 et 120 g/m<2> et une ou plusieurs régions à masse surfacique faible, n'excédant pas 80 % de la masse surfacique de la (des) région(s) à masse surfacique élevée. L'invention se rapporte également à des textiles d'entretien possédant de multiples masses surfaciques et, en outre, une structure macroscopique sensiblement tridimensionnelle. Lesdits textiles d'entretien à structure macroscopique tridimensionnelle peuvent également comporter une matière à fibres enchevêtrées qui, lorsqu'elle est chauffée puis refroidie, se contracte de manière à former la structure macroscopique tridimensionnelle. L'aspect macroscopique tridimensionnel est décrit en termes de "différentiel moyen de hauteur" et de "distance moyenne crête-à-crête". L'invention se rapporte également à des procédés d'utilisation de ces textiles d'entretien, aux avantages présentés par lesdits procédés et aux articles fabriqués correspondants.

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