The production of modal is comparable to that of viscose fabric; however, the vast majority of the inefficient and hazardous procedures are omitted from the process.
Beech trees have been cut down. Which are then subjected to a relatively involved purification procedure, which transforms the wood chips into the cellulose that is used to make the modal fabric. The cellulose that has been removed is pressed into sheets.
The sheets will be ready for the next stage once they have been submerged in sodium hydroxide. In contrast to the production of viscose rayon, this technique calls for a significantly lower amount of sodium hydroxide, which results in the generation of less hazardous waste.
The cellulose sheets can be broken down into fragments the size of crumbs by soaking them. They create a bright orange material that is called sodium cellulose xanthate when they are submerged in carbon disulfide.
When it reaches this threshold, the modal material is no longer considered to be a synthetic fabric but rather a semi-synthetic fabric. This is the point at which it goes beyond being a synthetic fabric.
Another step in the process involves re-soaking the sodium cellulose xanthate in sodium hydroxide. After that, it is sent through a spinneret so that fibres can be created. The final process in the production of modal yarn involves soaking the modal fibres in sulfuric acid.
After going through the processes of bleaching, washing, and drying, modal is now ready to be made into your go-to t-shirt, underwear, or shirts.