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Frequently Asked Questions:
Q:
How to avoid batch to batch shade variation in reactive dyeing?
Q:
How do you dye a
solid shade on
cotton viscose blended material? Both have different dye affinity.
Q:
Does soaping really improve the Washing and Rubbing fastness properties of reactive dyed material?
Q:
Increase in depth of Cotton dyed goods without increasing the dyestuff concentration - Is it possible?
Q:
What are some important points for achieving level dyeing in jet dyeing with reactive dyes?
Q:
What is the best method to strip a reactive dyed material in cheese form?
Q:
What is
APEO and what does
APEO free surfactants mean? How to remove the APEO content of a finished fabric?
Q:
Is there any possibility of improving the light fastness of reactive dyed fabric by any treatment?
Q:
In Viscose-Lycra blended knit fabrics, after compaction and relaxation of one or two days, elongation occurs across the length of the fabric. Why does this happen and how can it be prevented?
Q:
In heavy-knit structures and flat-back rib structures like collars (especially mercerised collars), crease marks can be noticed even after the addition of lubricants. This causes the formation of dark lines on collars. How can this be prevented?
Q:
In mercerised fabrics, if patches are seen after dyeing, how can the root cause be identified whether it is defective mercerisation or defective dyeing?
Q:
What is 'phenolic yellowing' and how is it influenced by acidic and alkaline conditions?
Q:
After drying, a reactive bright lemon yellow turns in to redder and duller, Turquoise becomes yellowier, Royal blue becomes greener and bright reds become duller and bluer - what is the reason and how to
prevent this?
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