Process Flow Chart Of Lab Dip Development In A Dyeing Lab | Shade Matching Procedure

Dyeing is performed in the dyeing floor but before starting bulk production a lots of work is done in the dyeing laboratory. In the lab, lab dip or sample is developed by the textile engineer or technician. In lab, lab dip is matched with the sample given by the buyer. Then lab dip is send to the buyer for his approval. In lab, full work is done in sequence.

In a dyeing lab, lab dip is developed like the following sequence:

Receiving standard swatch

First recipe take from Spectrophotometer or manually

Dispersion by autodoser

Trial dyeing of first recipe

Unload

Normal wash

Hot wash with detergent

Finishing

Hydro

Drying

Compare with standard swatch

If not ok

First correction takes from Spectrophotometer or manually

Dispersion by autodoser

Trial dyeing of first recipe

Unload

Normal wash

Hot wash with detergent

Finishing

Hydro

Drying

Compare with standard swatch

If not ok

Second correction takes from Spectrophotometer or manually

Dispersion by auto doser

Trial dyeing of first recipe

Unload

Normal wash

Hot wash with detergent

Finishing

Hydro

Drying

Compare with standard swatch

If ok

Send for buyer’s approval

The flow chart which I have given in above is all most same in the entire dyeing laboratory. But this sequence could be changed depending on the engineers own procedure. This procedure is applicable for yarn or fabric dyeing.

In dyeing lab, the textile engineer should have deep knowledge about the shade matching.

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