Fabric (woven – knitted – or nonwoven textile or cloth – etc.) – Coated or impregnated woven – knit – or nonwoven fabric which... – Coating produced by extrusion
Reexamination Certificate
1998-12-08
2001-02-13
Cole, Elizabeth M. (Department: 1771)
Fabric (woven, knitted, or nonwoven textile or cloth, etc.)
Coated or impregnated woven, knit, or nonwoven fabric which...
Coating produced by extrusion
C442S098000, C442S099000, C442S100000, C442S097000, C427S286000, C427S288000
Reexamination Certificate
active
06187695
ABSTRACT:
TECHNICAL FIELD
This invention relates generally to a cool feeling tissue product and method of preparing the tissue product. More particularly, the invention relates to a tissue product including a lotion composition applied to a surface of the tissue, the lotion providing a cool sensation when in contact with skin.
BACKGROUND
Disposable tissues, such as facial and bathroom tissues and wipes, are commonly made of cellulose or cellulosic webs. These tissues come in contact with skin when used, and are preferably soft and comfortable to the touch. Various techniques are known in the art to improve the comfort and touch of tissues, including the selection of the source pulp for the cellulose web, manufacturing methods that minimize compression and pressure on the web, and addition of compositions to soften the tissue, such as lotions.
While it is known to provide tissues with lotions to improve comfort, the addition of lotions can decrease the thickness of the tissue sheets due to a partial collapse of the web structure when exposed to moisture and processing pressures. Recently, improved tissues containing a lotion and methods of making tissues containing a lotion were patented as U.S. Pat. Nos. 5,601,871; 5,614,293; and 5,650,218 to Krzysik et al.. The improved tissues and methods use uniformly distributed deposits on the surface of a soft uncreped throughdried tissue. These methods result in improved tissues having advantages for use as facial and bathroom tissues. The improved tissues impart benefits to the user, including superior softness. The patents identified above indicate a number of compositions useful for applying to the tissue, and these compositions provide a softer and more comfortable tissue.
While the tissues and methods patented by Krzysik et al. provide advantages over preexisting tissues, improvements that make the tissues more comfortable or impart a beneficial attribute in specific uses remain desirable.
SUMMARY OF THE INVENTION
The present invention is directed to a tissue product including a cooling composition added to exterior surfaces of the tissue which feels cool when applied to the skin. The invention is also directed to a method of making a tissue product having a “cooling” composition, as well as to the “cooling” composition itself. The tissue product includes a tissue web onto which a lotion composition is applied. The tissue containing the lotion composition provides a cooling sensation when in contact with human skin.
In one implementation of the present invention, the cooling composition includes a silicone oil consisting of a methylated linear siloxane polymer mixture, end capped with trimethyl siloxyl units (dimethicone), a C
1-18
alkyl fatty acid ester, such a isopropyl palmitate, a purifued mineral oil, a fatty acid or fatty alcohol ethoxylate (1 to 200 moles EO) ceteareth-20, and cetyl alcohol. In another embodiment, the lotion composition includes dimethicone, mineral oil, a mixture of cetyl acetate and acetylated lanolin alcohol, tridecyl neopentanoate, tocopherol, and cerasin wax. The lotion composition is heated to a temperature above the melting point of the composition, causing it to melt. This melted composition is then applied to one or both sides of the tissue web. In specific implementations, the composition is applied at a density from about 100 to about 1,000,000 deposits per square inch of the tissue web. Following deposition of the melted lotion composition, the composition is resolidified to provide an improved tissue product.
When in contact with human skin, the improved tissue product provides a cooling sensation that is not experienced with most other lotion compositions. This cooling sensation provides a pleasant feel to the skin, and is an improvement over prior tissue products.
The above summary of the present invention is not intended to describe each illustrated embodiment of the present invention. The detailed description which follows should make more aspects of the invention apparent.
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Henderson Cynthia W.
Krynock Lorrie L.
Krzysik Duane G.
Cole Elizabeth M.
Croft Gregory E.
Kimberly--Clark Worldwide, Inc.
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