A review of Cotton Spinning- Process Control Perspective

Update Note: This article was originally written in 2011. One of the external reference links used at that time is no longer active. I have retained the article because the broad ideas related to cotton spinning and process control may still be useful to students and textile professionals. I may update this article with fresh references in the future.

Dyeing of Ikat Orissa Yarn with Vat and Napthol Colors

Dyeing of Ikat Orissa Yarn with Vat and Napthol Colors

Vat Colouring of Handloom yarn:

For vat colouring of one muda ( equivalent to 10 hank/ phand locally or 8400 yards) of handloom yarn 2 gms of colour, 8 gms of caustic soda and 8 gms of hydrogen sulphide is added in 1.5 litres of hot water. The yarn is then dipped in the hot water and stirred. The yarn is then drained out of the container and allowed to cool down. It is then washed in cold water and then sun dried.

Napthal Colouring of Handloom yarn:

For napthal colouring of one muda  of handloom yarn 4 gms of caustic soda and 4 gms of napthal is added in 1.5 litres of water and boiled. The yarn is then dipped in the hot water and stirred. Subsequently the yarn is drained out of the container and allowed to cool down. 4 gms of colour is then added in another container having 1.5 litres of water and stirred. Now the napthal drained yarn is dipped in this container. Water is then drained out of the coloured yarn and sun dried.

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Treasure House of Information of Indian Traditional Textile Processes

The website of All India Artisans and Craftworkers Welfare Association (AIACA) is an amazing resource of information about the traditional craft processes. This organization has introduced Craftmark certification. It prohibits child labor, and guarantees that hand-made aspect of the craft processes are used. They have done extensive research in the craft regions of the country and have come up with diagnostic studies on the regions.  All the studies are available on this site for reference. They have also listed, documented and kept for reference the traditional craft process such as Ajrak, Kalamkari, Maheshwari and Chanderi printing. This site is a must for Indian traditional craft enthusiast.

Download Links

1.       Traditional Craft Processes

2.       Diagnostic Studies of Crafts 

3.       Handcraft Sector in India- Frost and Sullivan Study

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difference between Sujni and Kantha

The difference between Sujni and Kantha - Please read this document for full description      

Sujni (Source of Image)

 

Sujni is very similar to Kantha. Because both are made of old materials and

embroider with the thread unpicked from borders of saris. But they differ in techniques:

Kantha (Source of Image)

•  In Sujni, running stitch worked in straight line but in Kantha they use spiral,

circular and conical forms.

•  In Sujni the outline of the motifs are done by chain stitch in dark colour but in

Kantha out lines are done by running stitch.

•  In Sujni the motifs are filled with running stitch and rest of the area is also

embroidering by the running stitch with the same base colour thread but in Kantha only

motifs are filled.