4. Degumming: Thrown sik yams still contain some senon that must be removed in another soap bash to bring out the naturalluster and the st feel of the sk As much as 25% of the weght s lost by the degumming process when has been removed. the sikfber or fabric is gum creamy white color. beautifully ustrous and luurano sot It takes place after throwing or preparing yarn for dyeing A small amount of sericn is sometimes leftin the yam or in e fabncto give the finished product added strengh or a dull finishad to be made.