Texturized dental floss and method of making
AssigneeColgate-Palmolive Company
InventorsChristopher Suhonen, Esdras Del Soli das Dores
Life of this patent
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Abstract
The floss is of a yarn type that has a first thickness when under no tension and a considerably diminished thickness when under tension. The thickness of the floss can be decreased to as low as 10 percent of the thickness of the relaxed floss. This allows for easier insertion into interdental spaces. This floss is produced by coating a yarn and curing the coating on the yarn while the yarn is under minimal tension. This preserves the elasticity of the yarn and the property of the yarn having a range of thickness from a point of relaxation to a point of being under tension.
Claims23
A texturized dental floss comprising a texturized yarn having a thickness if about 10 to about 40 mm throughout its length at relaxation and a thickness of about 1 to about 4 mm at a tension of more than about 10 grams.
A method for making a texturized dental floss comprising coating a texturized yarn with an agent to stabilize said yarn from shredding and fraying during use as a floss, said coating being applied to said yarn and cured thereon while said yarn over its full length is in an essentially relaxed and minimum tension condition whereby said floss has a thickness of about 10 mm to about 40 mm at relaxation and a thickness of about 1 mm to about 4 mm at a tension of more than about 10 grams.
Dependencies are inferred from the claim text.