The present invention relates to a method for manufacturing a polarizer, including: a) immersing and swelling a polyvinyl alcohol-based film in an aqueous solution containing an azo-based dye having an absorption wavelength of 300 nm to 550 nm; b) dyeing the swollen polyvinyl alcohol-based film with an iodine-based dye; and c) stretching the dyed polyvinyl alcohol-based film, and a polarizer manufactured using the method.

A polarizing film includes a hydrophobic polymer and a dichroic dye, wherein the hydrophobic polymer includes a polypropylene polymer including about 0.5 mol % or less of an ethylene content (mol %), and has a distribution of a molecular weight of about 1 to about 5.

A reactive dye compound and preparation method and application for printing and dyeing of cellulosic fibers, polyamide fibers and fabrics thereof. Formula (I) is the dye compound structure where D.sup.1 and D.sup.2 are each independently the group of the following formula (a) or (b) or (c), and D.sup.1 and D.sup.2 are not simultaneously selected from the following formula (a). R.sup.1, R.sup.2, R.sup.4, R.sup.5, R.sup.7 and R.sup.8 are each independently H, linear or branched C.sub.1˜C.sub.4 alkyl, C.sub.1˜C.sub.4 alkoxy or sulfo; m=0-3. Each R.sup.3 is independently selected from amino, sulfo, ureido, C.sub.1˜C.sub.4 alkyl, C.sub.1˜C.sub.4 alkanoylamino or C.sub.1˜C.sub.4 alkoxy, n=0-3, and each R.sup.6 is independently selected from hydroxyl, amino and sulfo. X.sup.1, X.sup.2 and X.sup.3 are each independently H, C.sub.1˜C.sub.4 alkyl, C.sub.1˜C.sub.4 alkoxy, —SO.sub.2Y.sup.1, —NHCO(CH.sub.2).sub.pSO.sub.2Y.sup.2 or —CONH(CH.sub.2).sub.qSO.sub.2Y.sup.3, and at least one of D.sup.1 and D.sup.2 contains a fiber-reactive group. Y.sup.1˜Y.sup.3 are each independently —CH═CH.sub.2, —C.sub.2H.sub.4OSO.sub.3H or —CH.sub.2CH.sub.2Cl, p=1-3, and q=1-3. ##STR00001##

A reactive dye compound and preparation method and application for printing and dyeing of cellulosic fibers, polyamide fibers and fabrics thereof. Formula (I) is the dye compound structure where D.sup.1 and D.sup.2 are each independently the group of the following formula (a) or (b) or (c), and D.sup.1 and D.sup.2 are not simultaneously selected from the following formula (a). R.sup.1, R.sup.2, R.sup.4, R.sup.5, R.sup.7 and R.sup.8 are each independently H, linear or branched C.sub.1C.sub.4 alkyl, C.sub.1C.sub.4 alkoxy or sulfo; m=0-3. Each R.sup.3 is independently selected from amino, sulfo, ureido, C.sub.1C.sub.4 alkyl, C.sub.1C.sub.4 alkanoylamino or C.sub.1C.sub.4 alkoxy, n=0-3, and each R.sup.6 is independently selected from hydroxyl, amino and sulfo. X.sup.1, X.sup.2 and X.sup.3 are each independently H, C.sub.1C.sub.4 alkyl, C.sub.1C.sub.4 alkoxy, SO.sub.2Y.sup.1, NHCO(CH.sub.2).sub.pSO.sub.2Y.sup.2 or CONH(CH.sub.2).sub.qSO.sub.2Y.sup.3, and at least one of D.sup.1 and D.sup.2 contains a fiber-reactive group. Y.sup.1Y.sup.3 are each independently CHCH.sub.2, C.sub.2H.sub.4OSO.sub.3H or CH.sub.2CH.sub.2Cl, p=1-3, and q=1-3.

##STR00001##

A tooth whitening composition containing film flakes of a hydroxyalkyl methyl cellulose and a pigment in combination with an orally acceptable carrier vehicle.

The present invention relates to a method for manufacturing a polarizer, including: a) immersing and swelling a polyvinyl alcohol-based film in an aqueous solution containing an azo-based dye having an absorption wavelength of 300 nm to 550 nm; b) dyeing the swollen polyvinyl alcohol-based film with an iodine-based dye; and c) stretching the dyed polyvinyl alcohol-based film, and a polarizer manufactured using the method.

Provided herein are methods for inducing cell death in a gram positive bacterium and methods for reducing the proliferation of a gram positive bacterium that include contacting a gram positive bacterium with a dye (e.g., an azo dye) and a TarO inhibitor. Also provided are methods of treating a subject having a gram positive bacterial infection that include administering to a subject having a gram positive bacterial infection a dye (e.g., an azo dye) and a TarO inhibitor. Also provided are compositions containing a dye (e.g., an azo dye) and a TarO inhibitor, and kits containing at least one of these compositions.

Described herein are oral care compositions comprising a crosslinked polyvinylpyrrolidone complexed with hydrogen peroxide, together with a blue to violet-blue pigment; including some embodiments which further comprise an ethylene oxide, propylene oxide block co-polymer.

Described herein are oral care compositions comprising a crosslinked polyvinylpyrrolidone complexed with hydrogen peroxide, together with a blue to violet-blue pigment; including some embodiments which further comprise an ethylene oxide, propylene oxide block co-polymer.