Determination of Colour Fastness to Organic solvent – Textile material

Colour Fastness to Organic Solvent

APPARATUS                            

1. Suitable
   container (with means of agitation)
2. Adjacent multi fabrics (10X4cm)
3. Grey Scales                                                                      

REAGENTS                                           

• Trichloroethylene or Perchloroethalene

PEOCEDURE 

1. Condition the sample to
   moisture equilibrium in standard atmosphere temperature 27±2 ^oC and
   HR 65± 2 %.for 24 hour. 
2. Place the composite specimen
   and the solvent in the container.

3. The liquor ratio is 40:1
4. Agitate the specimen by hand
   with glass rod for 30 min( in room temperature)
5. The specimen should be pressed against the
   container every 2 min with glass rod without removing the specimen from solvent.
6. Remove the specimen squeeze and
   dry it air at 80 ±2^oC without unstitching.
7. Take the precaution necessary
   for safety in drying explosive solvent.
8. Remove the stitching,
9. Evaluate the change on colour
   of the treated specimen by method IS 768-1982.

Note: If sample is multicolor fabrics- minimum one sample for each colour

REFFERENCE SPECIFICATION     :    IS 688: 1988