Loading...Ø Defect: Colors are not fast to washing, Abrasion; Staining in the fabric when transporting from place to the other, water marks on the fabric
ü Remedy: Wash the fabric with soap and soda ash at right temperature. Adding sequestering agent will yield good results. Treating with Ammonia will also give good results.
Ø Defects in the fabric due to Printing- Need to take out full color
ü Remedy: Treat the dyed fabric with Sodium Hydrosuphite with 5-10 gm Sodium Hydrosulphite at 750C for 30-45 minutes. Add 5-7 gms Caustic Soda for even removal of colors. The color becomes light yellow or brown after removal. Wash it thoroughly with soap.
Or,
ü The color can also be removed by solution of Sodium Hypochlorite. Treat the fabric with a sodium hypochlorite solution (3-5 gm Chlorine) for 20-30 minutes. Keep the pH between 9-10. The fabric is treated with Acetic acid after removal of color to remove chlorine and to neutralise the fabric.
Or,
ü The fabric can be redyed after removal of color
Ø Defect: Bleeding in colors during washing, abrasion
ü Remedy: Boil the fabric with caustic, Treat the fabric with Hydrogen Peroxide ( 5-10 gpl, 60-700C) to make the color fast.
Ø Defect: The fabric has been dyed in darker shade, uneven dyeing
ü Remedy: To take out color from the fabric treat it with caustic for 45-60 min at 700C. Thereafter treat the fabric with 10-20 gpl Acetic Acid for 40-60 min at 80-850C.
Ø Defect: Uneven dyeing, marks of water, marks of colors
ü Remedy: Wash the fabric in soap and redye in a darker shade
Ø Defect : The fabric has become stiff and rough after dyeing
ü Remedy: Finish after adding right softner
Ø Defect: Color staining of fabric, uneven dyeing
ü Remedy: Redye the fabric in darker shade.
Ø Defect: Color staining in fabrics of darker shade, uneven undyeing
ü Remedy: Dye the fabric in Sulphur black
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