![]() It is then moved through a spinneret to create fibers. The sodium cellulose xanthate is once again soaked in sodium hydroxide. This is the point at which modal goes beyond being a synthetic fabrics and is considered to be a semi-synthetic fabric. Immersing them in carbon disulfide produces an orange substance called sodium cellulose xanthate. Seeping the cellulose sheets breaks them down into crumb-size pieces. Unlike with viscose rayon, this process requires much less sodium hydroxide, which means less toxic waste. Submerging the sheets in sodium hydroxide prepares them for the next step. A somewhat complex purification process converts the wood chips into the cellulose that becomes the fabric.įirst, sheets are formed from the extracted cellulose. It involves the use of harvested beech trees. Modal is produced in a manner like that of viscose rayon, but without most of the wasteful and harmful processes.
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