Biocide-free prewetted sponge cloth
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United States of America Patent
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Jun 18, 2019
Grant Date -
Jun 23, 2016
app pub date -
Dec 14, 2015
filing date -
Dec 23, 2014
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Abstract
A biocide-free sponge cloth prewetted with a hygroscopically acting inorganic salt is provided. The spone cloth is based on regenerated cellulose which is mechanically reinforced with fibers and/or a web and includes a hygroscopically acting salt. The sponge cloth has an aw value of less than 0.80. On account of the low aw value, the sponge cloth has an antibacterial, bacteriostatic, fungicidal and/or fungistatic effect. The hygroscopically acting salt is preferably magnesium chloride. It can be combined with further inorganic salts, with low molecular weight, mono- or polyhydric alcohols, with sugars, sugar esters, mono- or polybasic carboxylic acids, esters of mono- or polybasic carboxylic acids and/or with hydrophilic polymers. The sponge cloth is preferably produced by the viscose process.
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