Textile Notes related to fiber, yarn, fabric knowledge, spinning, weaving, processing, projects, knitting, Indian Traditional Textiles and denim manufacturing
Sunday, 29 May 2011
Indigo Dyeing using Fermentation Vat
Saturday, 28 May 2011
Some Notes on Denim Washing
Saturday, 21 May 2011
Resources for Textile Technology Students
While surfing I came across one more site, again very useful for textile students.
Please do not miss their blog.
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Some Selected Notes on Textiles: Part -5
This is important for nightwear as they are finer and thinner than regular wear and are more prone to flammability than other fabrics.
In the testing, among other things time required for the flame to travel a certain distance is determined. It is now mandatory to have a flammability test if the fabric GSM is less than 88 grams.
Samples are tested both as submitted and after one cycle of washing and dry cleaning to obviate any instance of flammbility finish that might get washed of after one washing. Also iginition behaviour of the fabric is observed. Normally 5 specimens are tested. If they do not get ignited than 10 specimen are tested.
Butane gas of specified parameter is used. Based on the ignition behaviour, fabric is classified into Class I, class II and Class III. You can learn about the classification here.
You can read some facts about fabric flammability here.
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Tuesday, 17 May 2011
Some Selected Notes on Textiles- Part 4
Sunday, 15 May 2011
Some Selected Notes on Textiles- Part 3
Some Selected Notes on Textiles- Part 2
| Washing Fastness Tester |
Saturday, 14 May 2011
Some Selected Notes on Textiles - Part 1
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Saturday, 7 May 2011
Toda Embroidery- A Tango of Needles
Toda Embroidery
Toda people have a unique way of dressing. Both men and women cover themselves with a unique shawl called Puthukuli which is designed and embroidered by themselves. It is intricately embroidered with red and blue or black threads at the borders. It is worn like a Roman Toga. On one end of the cloth three stripes- two of red and one of black are woven into it. It is in these stripes that the embroidery is worked. The darning stitch is used for embroidering motifs and patterns. The base fabric is bleached white cotton with a balanced weave structure. It enables the artisan to count and embroider the pattern. No embroidery frame is used but instead they use their fingers to see, count and pick up threads by stretching the fabric. At each turn little tufts of threads are left protruding body. This technique ensures that each pattern created has a rich texture. Patterns used for embroidery are similar to the ones used for tattoo marks.
Sources of Images and Text
1. http://www.cohands.in/handmadepages/pdf/331.pdf
2. http://www.parikramaholidays.com/pdf/Poothukuly-A-Toda-Ceremonial-Shawl.pdf
3. A very nice story for children depicting Toda Culture http://www.arvindguptatoys.com/arvindgupta/22nbt-%20The%20Toda%20&%20The%20Tahr%20by%20E.R.C.%20Davidar.pdf

Wednesday, 4 May 2011
Chuna Patri Printing Process of Bagru
| Potassium Chlorate |
| Aniline Hydrochloride( Patri) |
| Copper Sulphate |
| Fabric Printed with Lime |
| Fabric Turning Green on Exposure to Sun |
| Fabric Turning Black Gradually |
Sunday, 24 April 2011
Linen and Ramie
Friday, 22 April 2011
All About Zari
Kataoki Bel : This is a border pattern made of stiff canvas and the whole surface is filled with sequin edging.A variation of this border technique is lace made on net and filled with zari stitches and spangles.
Gota Work (Also adapted with the picture below from this source): The woven gold border is cut into various shapes to create a variety of textures in the patterns.In Jaipur the border of the material or sari is cut into shapes of birds, animals, and human figures, attached to the cloth, and covered with wires of silver and gold; it is surrounded by coloured silks.The work resembles enameling.
Master Weaver in India
There are basically two types systems employed by the master weaver. In one system, the weaver works at his home with his family. The raw material is supplied by the master weaver. Generally the waver works on a piece rate system. The good point of this method is the fact that whole family helps in the weaving process.
In the Karkhana system, the weaver works on the looms provided by the master weaver under one roof. Generally the weaver works on a time rate system.
This system has emerged as a dominant system in handlooms in India.
Please read the full report here.
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Thursday, 21 April 2011
What is Super Combed Cotton
We sometimes segregate cotton yarns depending upon the percentage of short fibers removed during combing.
In Semi Combed Cotton the short fiber removal percentage is kept at 5-10%.
In Normally Combed cotton the short fiber removal percentage is kept between 10-20%.
In Super Combed cottons the short fiber removal percentage is over 20%.
A very nice introduction to combing for Textile Technologists can be found in this article.
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Monday, 11 April 2011
Ahimsa Silk : Is it really Non-Violent
Ahimsa Silk, also known as Peace Silk, is processed from cocoons without killing the pupae inside.
The main Arguments Against Ahimsa Silk are the two:
1. If the pupa is allowed to hatch, they will become caterpillars, it is impossible to feed so many. Thus instead of killing individual caterpillars, the offsprings are being killed.
2. In Eri Silk also, majority of the worms are starved to death after hatching. They are not flying off into woods.
As the Author says "I think it's mathematical sleight-of-hand to justify a high sale price for second-tier yarns"
Please read the full article here.
Similar Argument is given that Recycled polyester is more enviroonmentally sustainable than cotton. Read here
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Sunday, 10 April 2011
More about Tussar or Tussah or Tassar
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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Thursday, 10 March 2011
Process Control in Textile Chemical Processing
What is more important that on their website is a wealth of useful information for textile professional.
You can get characteristic shades of Sulphur, Direct and Reactive Dyes. If you also want to know how to apply sulphur dyes, click here to find out.
And best of all they have an amazing document on the process control of Textile Chemical Processing.
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Wednesday, 2 March 2011
A review of Cotton Spinning- Process Control Perspective
Monday, 28 February 2011
Dyeing of Ikat Orissa Yarn with Vat and Napthol Colors
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