Oil absorbent wipe with rapid visual indication

A - Human Necessities – 47 – K

Patent

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Details

A47K 7/04 (2006.01) A45D 19/00 (2006.01) A47K 10/16 (2006.01) A61K 8/02 (2006.01) A61L 15/22 (2006.01) A61Q 19/00 (2006.01) A61Q 19/10 (2006.01) B29C 47/50 (2006.01) B29C 55/00 (2006.01) B32B 5/18 (2006.01)

Patent

CA 2463661

There is provided an oil absorbing wipe material suitable for wiping a users' skin or hair and a method for their manufacture. The wipes comprise at least an oil absorbing porous film-like substrate of a thermoplastic material. Generally, the wipe changes transparency or color (a change in L* of about 10 or more) when loaded with oil to provide an oil absorption indication functionality. The wipe is formed by (a) providing a porous film-like substrate of a thermoplastic material capable of absorbing facial or body oils and changing transparency or color, and (b) coating the porous substrate with oil, either continuously or in regions, wherein the oil coating is not sufficient to change the transparency or color of the substrate such that it loses its oil absorption indication functionality. This oil coating being of a nature such that the coated porous substrate has an increased oil absorption indicating functionality.

L'invention concerne une matière de lingette absorbant l'huile convenant pour essuyer la peau ou les cheveux de l'utilisateur ainsi qu'un procédé de fabrication associé. Ladite lingette comprend au moins un substrat en matériau thermoplastique en forme de film poreux et absorbant l'huile. D'ordinaire, sa transparence ou sa couleur change (un changement en L* d'environ 10 au moins) lorsqu'elle est chargée d'huile pour présenter une fonctionnalité indiquant l'absorption d'huile. La lingette est constituée (à) d'un substrat en matériau thermoplastique en forme de film susceptible d'absorber des huiles faciales ou corporelles et de changer de transparence ou de couleur, et (b) d'un revêtement d'huile recouvrant le substrat poreux, de manière continue ou par zones, ledit revêtement d'huile ne suffisant pas pour modifier la transparence ou la couleur du substrat de façon que celui-ci perde sa fonctionnalité indiquant l'absorption d'huile. La nature du revêtement d'huile est telle que le substrat poreux ainsi revêtu présente une fonctionnalité accrue indiquant l'absorption d'huile.

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