Sunday, 10 April 2011

More about Tussar or Tussah or Tassar

Looking for Tussar, I came across several other interesting features. Some of these are as follows:

1. China exports two types of Tussar Silks: 33/37 D Water reeled and 70 D Dry Reeled Silk. I am just wondering if the "China" that is 50/70 quality that we use in India is dry reeled always.

2. There are 7 grades of quality of Tussar Exported by China, 4A, 3A, 2A, A, B, C and Off grade.

3. The standard moisture regain of Tussar Silk is 10% and density is 1.58 to 1.63 gms/cm3.

4. Elongation at break of water reeled tussar is 23% and dry reeled tussar is 16%.

5. China tussar is different from Indian ( Tropical ) tussar due to the fact the China Tussar the species of the worm is different and fed on "Oak Leaves" ( Also done in Himalyan Regions of the country). Whereas in India it is fed on "Arjun" and "Aasan" leaves. 

6. 8 is the usual number of cocoon filaments to form a single thread. The normal size of the thread produced is 30-35 deniers.

7.Tussar silk is the primary kind in the silk which lustrous,bright,soft handfeel,it has highest wear resistance in the natural faric. The Acid & Alkali Resistance of tussah silk is better than mulberry silk.

However I could not find out how they do dry reeling of tussar. Would require your inputs. 

And yes, I found the Tussar process practiced in Bihar, Bhagalpur. You can click here to find out more.

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