LOW RESIDUE PERSONAL CARE WIPE
Publication Date: 2006-Sep-29
The IP.com Prior Art Database
A pre-moistened personal care wipe is described that is gentle on the skin and can be used for light duty cleaning of hard surfaces without excessive streaking and spotting. To reduce streaking, a low level of a highly effective spreading agent is used in the liquid solution in the wipe.
LOW RESIDUE PERSONAL CARE WIPE
A pre-moistened personal care wipe can be used for light duty hard surface cleaning without leaving behind unacceptable residue and streaking normally associated with conventional personal care wipes. These wipes comprise an absorbent basesheet, a preservative, a spreading agent and a moisturizing solvent.
Pre-moistened personal care wipes must be gentle enough for skin cleaning and preserved against microbe growth. When consumers extend the use of personal care wipes to light duty cleaning, the antimicrobial preservatives clump together and cause spotting on hard surfaces. Additionally, the surfactants commonly used for skin cleaning also cause streaking or smearing on hard surfaces such as glass, mirrors, and highly reflective surfaces such as black tile or stainless steel. On the other hand, glass cleaning wipes, which are designed to provide low streaking and spotting on hard surfaces, are preserved against microbes by short chain alcohols which damage and irritate skin and eyes and therefore are unsuitable for skin cleaning. Hence there is a need for a pre-moistened personal care wipe which is gentle on the skin and preserved against microbial growth, yet can be used for light duty cleaning of hard surfaces without excessive streaking and spotting.
A pre-moistened wet wipe has now been made to serve the dual purpose of a personal care wipe and a light duty cleaning wipe and exhibit minimal streaking or spotting on hard surfaces. It is believed that the wet wipes achieve low streaking by using a preserved wetting solution having a low level of a highly effective spreading agent which uniformly disperses the preservative on the hard surface in a layer that is so thin that it is undetectable to the human eye. Because only a small amount of the spreading agent(s) is required, the wetting solutions are significantly less expensive than at least some commercial wipes solutions. Also, the wetting solution can be formulated for high speed processing in order to minimize capital and processing costs during manufacturing. Costs are further minimized because the wetting solution can be concentrated and easily shipped, which aids in manufacturing flexibility by enabling products to be produced in a variety of locations.
Suitable basesheets can be made using any one of a number of processes such as air-laid, wet-laid, spun-bond, meltblown, spunlace, hydroknit, needle punch, film perforation, latex bonding, embossing, thermal bonding, laminating, and the like. The basesheet should have adequate softness to be used on the hands and face, yet have adequate toughness and tear resistance to hold up during light duty cleaning tasks. A particularly suitable basesheet material is spunlace.
As used herein, "preservatives" are materials which are biocidally active against microbes, such as bacteria, mold, mildew and/or yeast. In addition, these preservatives must...