<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">sulfur dye</topic></authority><related type="broader"><topic>synthetic dye</topic></related><variant type="other"><topic>dye, sulfur</topic></variant><variant type="other"><topic>sulfur dyes</topic></variant> <note xml:lang="en"><![CDATA[ Any of a class of wash-fast sulfur-containing synthetic organic dyes dissolved in a heated alkaline bath of sodium sulfide and then absorbed by cellulose fibers to which they are applied; they are made insoluble within the fibers by oxidation upon exposure to air.  They are the dyes most commonly used for cotton. ]]></note></mads>