Procedure of Lab Dip Development by the Different Dyestuff in the Laboratory

Last Updated on 15/06/2021

Lab Dip Development:
A lab dip is a sample of fabric to define color and its recipe before it goes for bulk dyeing. It is also a master piece for both buyer and manufacturer that give correct source what to be color look like and what is the corresponding dyestuff recipe would be. Generally dyeing lab matches their lab dip with buyers’ reference color. Several lab dips may be submitted for feedback until the standard is achieved and the lab dip is approved. Generally merchandiser is the responsible person to get the lab dips from the processing mill and to get approval from the buyer (see below image).

Sample lab dip card
Fig: Sample lab dip card (Image courtesy: Textile Lab Blog)

Lab dip development means the sample which is dyed according to buyer’s requirements (similar shade and so on). Light source is very important to development lab dip. Sometimes, buyer mention what light source they prefer for color matching. Besides, some buyers has requirement for spectrometer to match color. Depending on lab dip development sample dyeing and bulk production dyeing planning is done. Lab work plays an important role in dyeing process. Bulk dyeing process completely depends on the lab dip development work. The process of lab dip preparation is done in the chemical lab. Lab work is completely managed as the following sequence.

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Procedure of Lab Dip Development by the Different Dyestuff in the Laboratory:

Lab dip development procedure for 100 % cotton fabric is given below:

A. Calculate the recipe.

B. Weight the fabric.

C. Take the beaker keep the fabric in to the beaker.

D. Then the dyes, chemicals and required amount of water take in to the beaker by the digital pipeting.

E. Then weight the salt by the electric balance and add in to the beaker.

F. Then the beaker set in to the lab dyeing machine for dyeing.

G. Start the program for dyeing the whole dyeing time 60 min at 60 °C temperature (The dyeing time and temperature depends on which classes of dyes are used for dyeing)

H. After 30 min add the then add the soda ash by pipeting.

I. Again run the program next 30 min at the same temperature.

J. Finished the dyeing time then the sample taken from the beaker first hot wash and then cold wash.

K. Then acid wash as for neutralization.

L. Then soaping required soap solution 10 min at 90°C temperature.

M. After the fabric again cold.

N. Then dry the lab dip and compare with the standard.

You may also like:

  1. Objects and Process Sequence of Lab Dip in Dyeing Lab
  2. Calculation and Working Procedure of Lab Dip in Textile Industry
  3. What is Shade in Textile | Fabric Shade Checking System in Textile Mill
  4. List of Chemical Testing Equipments for Dyeing Lab
  5. List of Physical Testing Machines in Dyeing Lab

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