Monday, 4 May 2026

Textile Calculations: How to change the EPI and PPI when changing counts for a given fabric



To Change from One Count to Another Count and Find Sett or Picks to Retain the Same Character of Cloth

This rule explains how to change the yarn count while keeping the cloth character nearly the same. Here, cloth character means the general feel, firmness, cover, openness, handle, and appearance of the fabric.

If the yarn count is changed from coarse to fine, or from fine to coarse, the sett or picks cannot usually remain the same. The number of ends per inch or picks per inch must be adjusted.

Core Idea

If a finer yarn is used, more ends per inch or picks per inch are required to maintain the same cloth character.

If a coarser yarn is used, fewer ends per inch or picks per inch are required.

For example, 60s yarn is finer than 40s yarn. Therefore, if a fabric made with 40s yarn has 60 ends per inch, the same type of fabric made with 60s yarn will require more than 60 ends per inch.

Why Square Root Is Used

Yarn count does not change linearly with yarn diameter. In the cotton count system, yarn diameter is approximately proportional to the reciprocal of the square root of the count.

\[ \text{Yarn diameter} \propto \frac{1}{\sqrt{\text{Count}}} \]

This means that 60s yarn is not simply 1.5 times thinner than 40s yarn. Its diameter changes according to the square root of the count ratio. Therefore, when the count changes, the sett or picks must also be adjusted according to the square root relationship.

Rule

The rule may be expressed as:

\[ \frac{\sqrt{\text{Given Count}}}{\sqrt{\text{Required Count}}} = \frac{\text{Given Sett}}{\text{Required Sett}} \]

Or, more practically:

\[ \text{Required Sett} = \text{Given Sett} \times \frac{\sqrt{\text{Required Count}}}{\sqrt{\text{Given Count}}} \]

Where:

  • Given Count = original yarn count
  • Required Count = new yarn count
  • Given Sett = original ends per inch or picks per inch
  • Required Sett = new ends per inch or picks per inch

Example

Suppose the original fabric has:

  • Yarn count = 40s
  • Sett = 60 ends per inch

Now, the fabric is to be made using 60s yarn. The required sett is calculated as follows:

\[ \text{Required Sett} = 60 \times \frac{\sqrt{60}}{\sqrt{40}} \]

\[ = 60 \times \sqrt{\frac{60}{40}} \]

\[ = 60 \times \sqrt{1.5} \]

\[ = 60 \times 1.225 \]

\[ = 73.5 \]

Therefore, the required sett is approximately:

\[ 73.5 \text{ ends per inch} \]

In practical weaving terms, this may be rounded to:

\[ 73 \text{ or } 74 \text{ ends per inch} \]

Meaning in Simple Textile Language

A fabric made with 40s yarn and 60 ends per inch has a certain closeness and cover. If the yarn is changed to 60s, the yarn becomes finer. If the sett remains at only 60 ends per inch, the cloth will become more open, lighter, and less covered.

To preserve the same character, the sett is increased to around 73–74 ends per inch.

So:

\[ 40s \text{ yarn at } 60 \text{ sett} \]

is approximately equivalent in character to:

\[ 60s \text{ yarn at } 73.5 \text{ sett} \]

Rule 2

Rule 2 gives the same answer in another form. It may be expressed as:

\[ \frac{\text{Given Count}}{\text{Required Count}} = \frac{\text{Given Sett}^{2}}{\text{Required Sett}^{2}} \]

Or:

\[ \text{Required Sett}^{2} = \frac{ \text{Required Count} \times \text{Given Sett}^{2} }{ \text{Given Count} } \]

Using the same example:

\[ \text{Required Sett}^{2} = \frac{60 \times 60^{2}}{40} \]

\[ = \frac{60 \times 3600}{40} \]

\[ = 5400 \]

\[ \text{Required Sett} = \sqrt{5400} \]

\[ = 73.5 \]

Therefore, both Rules give the same answer.

Applying the Same Rule to Picks

The same method applies to picks per inch.

Suppose a cloth has:

  • 40s weft
  • 56 picks per inch

Now suppose 60s weft is to be used. The required picks are:

\[ \text{Required Picks} = 56 \times \frac{\sqrt{60}}{\sqrt{40}} \]

\[ = 56 \times 1.225 \]

\[ = 68.6 \]

So the new picks per inch would be about:

\[ 69 \text{ picks per inch} \]

Changing from Finer Yarn to Coarser Yarn

The reverse is also true. Suppose the cloth has:

  • 60s yarn
  • 72 ends per inch

Now suppose 40s yarn is to be used. The required sett is:

\[ \text{Required Sett} = 72 \times \frac{\sqrt{40}}{\sqrt{60}} \]

\[ = 72 \times 0.816 \]

\[ = 58.75 \]

So the new sett would be approximately:

\[ 59 \text{ ends per inch} \]

Because 40s yarn is coarser, fewer ends are needed to give a similar cloth character.

Summary Table

Original Yarn Original Sett New Yarn New Sett Approx. Result
40s 60 EPI 60s 73.5 EPI Similar cover and firmness
60s 72 EPI 40s 58.8 EPI Similar cover and firmness
30s 48 EPI 40s 55.4 EPI Finer yarn needs higher sett
80s 96 EPI 60s 83.1 EPI Coarser yarn needs lower sett

Practical Interpretation

This rule is useful when a manufacturer wants to change yarn count but still produce a fabric that looks and feels similar. For instance, if 40s yarn becomes unavailable and 60s yarn is used instead, the sett or picks must be increased to compensate for the finer yarn.

Similarly, if a coarser yarn is used, the sett or picks must be reduced, otherwise the fabric may become too tight, heavy, stiff, or difficult to weave.

Important Caution

This rule gives an approximate theoretical sett. In actual weaving, the final sett may need adjustment because cloth character also depends on several practical factors, such as yarn twist, fibre quality, weave structure, reed space, crimp, loom tension, finishing shrinkage, desired cover, and whether the cloth is plain, twill, satin, drill, poplin, or another weave.

Therefore, this rule should be treated as a starting point, not as an absolute final production value.

In One Simple Sentence

When changing from one yarn count to another, adjust the sett or picks in proportion to the square root of the count ratio so that the fabric retains nearly the same appearance, cover, and character.

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Sunday, 3 May 2026

Are Brocades same as Jacquards ?



Understanding Brocade: Fabric, Technique, and Jacquard Confusion

There is considerable confusion around the word brocade because it is used in two different ways. In everyday textile language, brocade usually means a rich woven fabric with elaborate, raised, embossed, or ornamental patterns. People identify brocade by its appearance: shining motifs, floral designs, metallic yarns, heavy texture, and a sense of luxury.

However, from a strict technical point of view, brocade is not simply one weave structure. It is better understood as a method of creating decorative patterns in woven fabric, where extra figuring threads are introduced to form motifs on the surface. These patterns may appear raised, floating, embossed, or richly textured.

So, the word “brocade” today often describes what the fabric looks like, while historically it also referred to how the pattern was produced.

Brocade as Appearance vs Brocade as Technique

The appearance of brocade has remained relatively stable over time. Whether we look at old handwoven Banarasi textiles or modern jacquard-woven sarees, the visual effect is often similar: elaborate motifs, floral vines, butas, borders, pallus, and ornamental surfaces.

But the technology behind producing that appearance has changed dramatically.

Earlier, brocade required very high levels of skill. The pattern had to be interpreted, counted, lifted, and woven manually. Today, the same kind of visual effect can be produced using mechanical or computerized jacquard systems. This means that the look of brocade has survived, but the labour, skill system, and production method have changed.



The Earliest Indian Method: Gethua

In the Indian context, one of the earliest methods of creating figured brocade patterns was the Gethua technique. In this method, a naksha, or graphed design pattern, was placed below the warp. The naksha acted like a visual guide for the weaver.

The weaver followed this graph manually and inserted patterning threads at the required points. This was a slow and highly skilled process. Each motif had to be understood through counting and careful placement. The pattern did not emerge automatically; it was created by the intelligence and memory of the artisan.

In this sense, Gethua was not merely weaving. It was a form of manual coding of design into cloth.

Jhala and the Draw Loom

Later, brocade weaving became more structured through the use of hand-operated draw looms, especially using the Jhala technique. In this system, the complex pattern was created with the help of a drawboy.

The master weaver worked at the loom, while the drawboy helped lift selected warp threads according to the pattern. This allowed more complex and repeatable designs than purely manual pattern insertion.

The Jhala system required coordination between:

  • the designer or naksha maker,
  • the master weaver,
  • the drawboy,
  • and the loom mechanism.

This system allowed richly patterned textiles to be produced, but it was still labour-intensive and dependent on highly trained artisans. The drawboy had to know which threads to lift at which moment. The master weaver had to control the rhythm, yarns, motifs, and fabric structure.

So, brocade production at this stage was still deeply linked to human skill, memory, and coordination.

The Jacquard Revolution

The introduction of the Jacquard loom in the early nineteenth century transformed the production of patterned textiles. The Jacquard mechanism worked through punched cards. Each card represented one row or line of the design.

Where there was a hole in the card, a thread could be lifted or allowed to pass. Where there was no hole, the thread remained down. In this way, the pattern was encoded into a series of cards.

This was revolutionary because the design no longer had to be manually interpreted by a skilled drawboy. The pattern was now stored mechanically.

This is why the Jacquard loom is often described as an early form of computing. It used a binary-like logic: hole or no hole, lift or do not lift. The punched card system later influenced early computing technologies.

In textile terms, the Jacquard loom changed brocade weaving in three major ways:

  1. It reduced dependence on highly skilled pattern manipulators.
  2. It made complex patterns faster and more repeatable.
  3. It allowed richly patterned fabrics to be produced at lower cost and in greater quantities.

This did not mean that skill disappeared completely. Designing, card punching, loom setting, yarn selection, and finishing still required expertise. But the nature of skill shifted from manual pattern lifting to mechanical preparation and loom operation.

Why Jacquard Made Older Looms Obsolete

Before Jacquard, producing elaborate brocade involved slow manual or semi-manual control of warp threads. The Jacquard mechanism automated this process. Once a pattern was punched into cards, it could be repeated again and again.

This made older hand-operated patterning systems less economical for many kinds of fabrics. Richly patterned textiles that once required a master weaver and drawboy could now be made faster by less specialized operators.

As a result, many old looms became commercially obsolete, especially for regular production of patterned fabrics. They survived in some traditional clusters, museum contexts, high craft production, or revivalist weaving, but the mainstream production of brocades increasingly moved toward jacquard technology.

Dobby Loom and Its Difference from Jacquard

The passage also mentions the Dobby loom, which is another important patterned weaving technology. A Dobby loom can create repeated geometric or simple patterns by controlling groups of warp threads.

However, Dobby is more limited than Jacquard.

A Dobby loom is suitable for smaller, simpler, repetitive designs such as checks, stripes, small geometric textures, and certain structured motifs. It is cheaper and easier to run than a Jacquard system. That is why it replaced Jacquard in simpler patterned fabrics where the full complexity of Jacquard was not needed.

But Dobby patterns are limited because they work over a restricted number of threads. The passage states that Dobby patterns are generally limited to designs stretching over about 40 threads, whereas Jacquard designs are virtually limitless in comparison.

This means:

Technology Best Suited For
Dobby Simpler, smaller, repeated patterns
Jacquard Complex, large-scale, detailed, pictorial, or elaborate patterns

Therefore, for rich brocades with complex floral, paisley, architectural, or figurative designs, Jacquard remains the more powerful system.

The Important Distinction: Brocade and Jacquard Are Not the Same

This is the most important conceptual point:

Almost all modern brocades are jacquards, but not all jacquards are brocades.

This means that most modern brocade fabrics are woven using a Jacquard mechanism. However, Jacquard is only a loom-control technology. It can be used to make many kinds of patterned textiles, not just brocade.

A Jacquard loom can produce:

  • brocade,
  • damask,
  • tapestry-like fabrics,
  • figured silks,
  • upholstery fabrics,
  • labels,
  • decorative borders,
  • complex saree pallus,
  • and many other patterned textiles.

So, Jacquard refers to the technology, while brocade refers to a type of rich figured fabric appearance and structure.

This is similar to saying that a printer can print a photograph, a poster, or a book page. The machine is the same, but the output is different.

Brocade vs Jacquard in Simple Terms

Term Meaning
Brocade A richly patterned woven fabric, often with raised or embossed motifs
Jacquard A loom mechanism used to control individual warp threads and produce complex patterns
Dobby A simpler loom mechanism for small, repetitive patterns
Gethua Early Indian hand-patterning method using a naksha under the warp
Jhala Traditional drawloom-based brocade technique involving a master weaver and drawboy
Naksha Graphed design or pattern guide used in traditional weaving

Why the Confusion Happens

The confusion happens because the consumer sees the final fabric, not the loom technology. A customer may call any rich patterned saree “brocade.” A trader may call a jacquard saree “brocade” because it has ornamental motifs. A textile historian, however, may ask whether the fabric is hand-patterned, drawloom woven, jacquard woven, supplementary weft brocade, damask, tapestry, or something else.

So, the same fabric may be described differently depending on whether the speaker is a consumer, merchant, weaver, designer, historian, or textile technologist.

A Better Way to Understand Brocade

A more precise way to understand brocade is:

Brocade is not merely a fabric name. It is a decorative woven effect created by patterning threads, historically produced by hand techniques such as Gethua and Jhala, and now most commonly produced through Jacquard technology.

This definition allows us to respect both the older craft tradition and the modern industrial reality.

It also prevents us from making the mistake of using “brocade” and “jacquard” as exact synonyms.



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Difference among Odisha, Andhra and Gujarat Ikat



Difference Among Odisha, Andhra and Gujarat Ikat

Ikat is one of the most fascinating textile techniques of India because the design is not printed, painted, or embroidered on the finished cloth. Instead, the design is imagined much earlier — at the yarn stage. The yarn is tied and dyed according to a predetermined pattern before it is placed on the loom. When the dyed yarns are finally woven, the design appears on the cloth. This is why Ikat is classified as a Pre-Loom textile in Mapping Indian Textiles by Ruchira Ghose.

The same report identifies Odisha, Andhra Pradesh/Telangana, and Gujarat as the three most important Indian states with long and strong Ikat traditions. Though all three follow the broad principle of tying and dyeing yarn before weaving, their visual language, motif vocabulary, technical emphasis, and cultural identity are very different.

What Makes Ikat Special?

In Ikat, selected parts of yarn are tied so that they resist dye. The exposed sections absorb colour, while the tied portions remain undyed. This process may be repeated several times for different colours. The prepared yarns are then woven into cloth.

Because the design is already embedded in the yarn, the weaver has to align the threads carefully during weaving. The slight shifting of yarn during weaving gives Ikat its famous soft, blurred edges. This blurring is not a defect. It is one of the most beautiful and recognizable features of Ikat.

The Three Major Indian Ikat Traditions

The three major Indian Ikat traditions may be broadly understood in this way:

Andhra Pradesh/Telangana Ikat is known for geometry.

Odisha Ikat is known for complexity, curves, and variety.

Gujarat Ikat, especially Patan Patola, is known for precision and prestige.

This is a useful way to remember the difference, though each region also has many internal variations.

Andhra Pradesh and Telangana Ikat: The Language of Geometry

The Ikat of Andhra Pradesh and Telangana is especially associated with geometric forms. Its designs often appear in a square grid format, with stepped outlines and clearly arranged motifs. In the report, Andhra/Telangana Ikat is described as being known particularly for geometric motifs.

Important centres include Pochampally, Chirala, Vetapalam, Koyyalagudem, and Puttapaka. Pochampally Ikat is perhaps the best-known name today. It is used for saris, yardage, furnishing fabrics, bedcovers, cushion covers, and curtains.

Another famous textile from this region is the Telia Rumal. Traditionally, Telia Rumal used deep red, dark blue or brownish-black along with natural off-white. It had a square grid structure within which geometric and figurative patterns were woven.

The beauty of Andhra/Telangana Ikat lies in its clarity and discipline. The forms are structured, balanced, and often architectural. Compared to Odisha Ikat, the motifs are usually less rounded. Compared to Gujarat Patola, the designs may be less rarefied, but they are more widely adapted into saris, furnishings, and contemporary textile products.



Odisha Ikat: The Language of Complexity and Curve

Odisha Ikat, also known as Bandha, is one of the richest Ikat traditions in India. The report describes Odisha as having the most extensive Ikat tradition among the three major Ikat states, both in terms of numbers practicing the craft and in terms of design complexity.

What makes Odisha Ikat extraordinary is its ability to create rounded forms through a technique that naturally tends to produce stepped or blurred outlines. Motifs such as fish, swan, peacock, parrot, deer, horse, elephant, lion, conch, star, rudraksha, and temple forms are found in Odisha Ikat. Even more remarkable is the tradition of calligraphy, where verses and sacred texts may be woven into the textile.

This requires exceptional planning. The design must first be imagined, then translated into tied and dyed yarn, and finally aligned during weaving. The report notes that Odisha Ikat often combines Ikat patterns with brocaded motifs, requiring special mathematical and visual skill.

Two important weaving communities are mentioned: the Mehers of Sonepur and Bargarh, and the Patras of Nuapatna and Cuttack. The Patras are associated with silk and calligraphic traditions, while the Mehers are associated mainly with cotton Ikat, though these distinctions are becoming less rigid over time.

Odisha Ikat is therefore not just one style. It is a vast design universe. It includes saris, rumals, lungis, dhotis, furnishings, and yardage. Among the three traditions, Odisha may be seen as the most diverse in motif vocabulary and design treatment.

Gujarat Ikat: The Language of Precision and Prestige

Gujarat’s most famous Ikat is the Patan Patola, a double Ikat sari traditionally woven in silk. In double Ikat, both warp and weft yarns are tied and dyed before weaving. During weaving, the two sets of patterned yarns must meet exactly for the design to emerge. This makes double Ikat one of the most demanding textile techniques.

The report describes Gujarat’s Patan Patola as famous for elaborate figurative patterns, though it also notes that its range of motifs is more limited than Odisha Ikat.

Gujarat Ikat is associated with a square layout and stepped outlines. Typical motifs include Naari, Kunjara, Chokadaa, Moon, Plate, Raas, Ratanmok, elephant, and parrot. The main product is the sari, especially the Patola sari.

The strength of Gujarat Ikat lies in its precision. Every yarn must be planned. Every intersection of warp and weft matters. A Patola is not merely woven; it is engineered with remarkable accuracy. This gives it a special status among Indian textiles.

A Simple Comparison

Feature Odisha Ikat Andhra Pradesh / Telangana Ikat Gujarat Ikat
Main identity Bandha Pochampally, Telia Rumal Patan Patola
Visual character Rounded, complex, fluid Geometric, grid-based Precise, square-layout
Main technical association Warp, weft, double, and combined Ikat Warp Ikat, weft Ikat, and double Ikat Double Ikat
Motifs Fish, swan, peacock, elephant, conch, temple, calligraphy Geometric forms, flowers, stars, animals Naari, Kunjara, Chokadaa, elephant, parrot
Colour palette Red, black, maroon, green, blue, yellow, white Black, red, white, chocolate Red, blue, green, yellow
Product range Rumal, lungi, dhoti, sari, furnishing, yardage Rumal, lungi, sari, furnishing, yardage Mainly sari
Core strength Variety and complexity Geometry and structure Precision and prestige


The Main Difference in One Line

If Andhra/Telangana Ikat is remembered for geometric discipline, Odisha Ikat for curved complexity, and Gujarat Ikat for double-Ikat precision, the difference becomes much easier to understand.

Conclusion

Odisha, Andhra Pradesh/Telangana, and Gujarat show three different possibilities of the same textile principle. All three begin with yarn-resist dyeing before weaving, but the final results are visually and culturally distinct.

Andhra/Telangana Ikat gives us the beauty of geometry. Odisha Ikat gives us the richness of rounded forms, calligraphy, and complex design combinations. Gujarat Ikat gives us the rare precision of the Patan Patola, where both warp and weft are tied, dyed, and aligned with extraordinary care.

Together, these three traditions show why Ikat occupies such an important place in Indian textile heritage. It is not simply a method of patterning cloth. It is a way of thinking through yarn, colour, mathematics, memory, and hand skill — long before the fabric is born on the loom.

Table 2: Types of Ikats Across India

State Warp Ikat Weft Ikat Warp and Weft Ikat
Odisha Sonepur
Balasore
Nuapatna, Cuttack Bargarh, Sambalpur
Althagarh, Cuttack
Bolanger
Andhra Pradesh / Telangana Chirala Vetapalam Pochampalli
Hyderabad
Koyyalagudem
Puttapaka
Gujarat Ahmedabad
Surat
Rajkot
Mandi
Patan
West Bengal Chandanagore
Murshidabad
Maldah
Uttar Pradesh Varanasi
Azamgarh
Maharashtra Narayanpet
Bijapur
Sholapur
Karnataka Bangalore
Mysore
Belgaum
Bellary
Dharwad
Chitradurga

Source: Based on Table 2, “Types of Ikat Across India,” in Mapping Indian Textiles by Dr. Ruchira Ghose.

Source Acknowledgement

This article is based on the discussion of Pre-Loom textiles, Ikat taxonomy, Table 2, and Table 3 in Mapping Indian Textiles by Dr. Ruchira Ghose, prepared under the Tagore National Fellowship and supported by the Indira Gandhi National Centre for the Arts, New Delhi.

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Understanding Indian Textiles Through the Pre-Loom, On-Loom and Post-Loom Taxonomy



Understanding Indian Textiles Through the Pre-Loom, On-Loom and Post-Loom Taxonomy

Indian textiles are often introduced to us through names: Banarasi, Kanchipuram, Patola, Paithani, Ajrakh, Kalamkari, Bandhani, Chikankari, Jamdani, Pochampally, Sambalpuri, and many more. These names are beautiful and culturally rich, but for a learner they can also become confusing.

Some names refer to places. Some refer to techniques. Some refer to communities. Some refer to products. Some refer to materials. Some refer to motifs or market identities. A sari may be known by its town, by its weave, by its border, by its community association, or by the way it is decorated.

So, how does one begin to understand the vast and complex world of Indian textiles?

One very useful answer comes from the report Mapping Indian Textiles by Ruchira Ghose, prepared under the Tagore National Fellowship and supported by the Indira Gandhi National Centre for the Arts, New Delhi. The report proposes a powerful way of classifying Indian handmade textiles: not merely by region or product name, but by asking a more fundamental technical question:

At what stage does the design enter the textile?

This question leads to a clear and elegant taxonomy:



Pre-Loom, On-Loom, and Post-Loom.


The Central Idea: Where Does Design Enter?

The report’s classification is based on what it calls the location of design in the handmade textile process. In simple words, this means identifying the stage at which the pattern, motif, colour arrangement, or ornamentation becomes part of the textile.

The design may enter:

Stage Category Meaning
Before weaving Pre-Loom Design is prepared on the yarn before it reaches the loom
During weaving On-Loom Design is created while the fabric is being woven
After weaving Post-Loom Design is added after the cloth has already been woven

This taxonomy does not replace regional names. It does not make words like Banarasi, Kanchipuram, Ajrakh, Patola, or Kalamkari unnecessary. Instead, it gives us a deeper technical structure underneath those names.

It helps us move from simply asking:

“Where is this textile from?”

to also asking:

“How does this textile become designed?”

That shift is extremely important.


1. Pre-Loom: Design Before the Loom

In Pre-Loom textiles, the design is created before the yarn is placed on the loom. The most important example of this category is Ikat.

In Ikat, the pattern is not drawn directly on cloth. Instead, the yarn itself is tied and dyed according to a planned design. The tied portions resist the dye, while the exposed portions absorb it. After dyeing, the yarns are arranged on the loom and woven. Only then does the final design emerge.

This is why Ikat often has a soft, slightly blurred edge. The design exists in the yarn before weaving, but it becomes visible as a complete pattern only when the warp and weft come together.

A beautiful way to understand Pre-Loom design is this:

In Pre-Loom textiles, the design is hidden inside the yarn and revealed through weaving.

The report identifies different types of Ikat:

Type of Ikat What happens
Warp Ikat The warp yarns carry the design
Weft Ikat The weft yarns carry the design
Double Ikat Both warp and weft yarns carry the design
Combined Ikat Warp and weft ikat appear in the same textile, though they may not overlap fully

Indian examples include Odisha Bandha, Sambalpuri Ikat, Pochampally Ikat, Telia Rumal, and Patan Patola.

Pre-Loom textiles require remarkable planning. The artisan must imagine the final design before the cloth exists. The design must be translated into yarn sections, tied, dyed, aligned, and woven. In Double Ikat, where both warp and weft must meet precisely, the level of calculation and skill becomes extraordinary.

So, Pre-Loom textiles are not merely woven. They are pre-imagined, calculated, dyed, and then woven into visibility.


2. On-Loom: Design During Weaving

In On-Loom textiles, the design enters during the weaving process itself. Here, the loom is not only a tool for making cloth; it is also the place where pattern is created.

This category includes both simple and complex forms of design.

Simple On-Loom Patterning

Some On-Loom designs are created by changing the colour, thickness, spacing, or arrangement of yarns.

For example:

Design Type How it is created
Stripes Variation in warp or weft yarns
Checks Variation in both warp and weft
Shot fabrics Different colours in warp and weft create changing tones
Texture effects Variation in yarn thickness or spacing

This is important because it reminds us that design does not always mean elaborate motifs. A stripe, a check, a colour shift, or a textural rhythm can also be a design decision built directly into the weaving process.

Brocade and Jamdani

More complex On-Loom textiles include brocade and Jamdani.

In brocade, the pattern is created on the loom using extra or supplementary yarns. These extra yarns may be supplementary weft, supplementary warp, or both. They are not necessarily required to create the basic structure of the fabric, but they create the decorative motif.

Jamdani is a particularly delicate form of this logic. In Jamdani, a fine ground fabric is woven with regular warp and weft, and then supplementary weft threads are inserted by hand to create motifs. These motifs often appear to float on the surface of the fabric.

A simple way to understand Jamdani is:

Jamdani is woven ornament. The ground cloth is formed by the regular warp and weft, while the motif is added during weaving through supplementary weft.

Examples include Dhakai Jamdani, Tangail Jamdani, and Uppada Jamdani.

Tapestry

Tapestry is also an On-Loom technique, but its logic is different from Jamdani.

In tapestry, the design is not added as an extra motif over a ground fabric. Instead, the coloured weft yarns that create the design are part of the actual structure of the cloth. The pattern and the fabric are built together.

This distinction is important.

In Jamdani, the motif is supplementary.
In tapestry, the motif is structural.

Examples of Indian textiles using tapestry-like techniques include the Kani shawl of Kashmir, the Paithani sari of Maharashtra, and the Dhurrie.

A useful line of distinction is:

In Jamdani, the motif is introduced into the fabric. In tapestry, the motif becomes the fabric.

Or even more simply:

Feature Jamdani Tapestry
Design yarn Supplementary weft Structural or complementary weft
Base fabric Exists independently Built along with the design
Visual effect Motifs appear to float Pattern is integrated into the cloth
Textile logic Ornament added during weaving Fabric constructed through pattern

This comparison shows the strength of the taxonomy. It helps us see that two textiles may both be “woven designs,” but the role of the design yarn may be very different.


3. Post-Loom: Design After the Cloth Is Woven

In Post-Loom textiles, the cloth is woven first. The design is added later.

This category includes a very wide range of Indian handcrafted textile traditions. Here, the loom may create the base fabric, but the final identity of the textile emerges through painting, printing, dyeing, embroidery, appliqué, or other surface techniques.

The report identifies broad Post-Loom groups such as:

Technique Group Examples
Painting Kalamkari, Mata ni Pachedi, Rogan
Printing Ajrakh, Bagh, Bagru, Sanganer
Resist dyeing Bandhani, Leheriya, Dabu
Embroidery Chikankari, Kantha, Phulkari, Kasuti
Appliqué Pipli appliqué and other appliqué traditions

In Post-Loom textiles, the cloth becomes a surface for further work. The design may be drawn with a pen, stamped with a block, resisted with wax or mud, dyed in stages, embroidered with thread, or built up by attaching another fabric.

This category is especially rich because it brings together textile skill, chemistry, drawing, hand control, ritual practice, community identity, and surface ornamentation.

For example, Kalamkari involves drawing and dyeing with mordants and natural colours. Ajrakh combines block printing with resist dyeing. Bagru uses hand block printing, often with natural dyes and Dabu resist. Rogan uses an oil-based paste applied by hand to create raised patterns. Mata ni Pachedi combines painting, printing, ritual narrative, and goddess imagery.

A useful way to remember Post-Loom textiles is:

Post-Loom textiles remind us that weaving is not always the end of textile creation. In many Indian traditions, weaving is only the beginning.


Why This Taxonomy Is So Useful

The Pre-Loom, On-Loom, and Post-Loom framework is powerful because it gives us a way to organize a very complicated field.

1. It reduces confusion

Instead of trying to memorise hundreds of names, we can begin with one question:

When does the design enter the textile?

If the design is prepared on the yarn before weaving, we are in the world of Pre-Loom. If the design is created during weaving, we are in the world of On-Loom. If the design is added after the cloth is woven, we are in the world of Post-Loom.

This does not solve every classification problem, but it gives us a clear starting point.

2. It separates product from process

A sari is a product form. But the technique used to create it may be Ikat, brocade, Jamdani, tapestry, printing, painting, embroidery, or appliqué.

So the word “sari” tells us what the object is.

The taxonomy tells us how the design was made.

That difference is very important for students, museum professionals, researchers, designers, and serious textile enthusiasts.

3. It helps museum documentation

The report was written in the context of public museums and textile collections. Museums need to classify, label, store, display, and explain textiles accurately. A taxonomy based on the location of design can help create better accession registers, gallery labels, digital archives, and educational displays.

Instead of simply saying “silk sari” or “printed cloth,” a museum can describe the material, technique, process, region, use, maker community, and design logic more precisely.

4. It reveals hidden skill

Once we know when design enters the textile, we begin to appreciate the invisible labour behind the object.

We begin to see:

the mathematical planning of Ikat,
the delicate insertion of supplementary weft in Jamdani,
the structural intelligence of tapestry,
the chemistry of mordants and resists in printing and dyeing,
the drawing skill of Kalamkari,
the patience of embroidery,
and the compositional intelligence of appliqué.

The taxonomy helps us look beyond surface beauty into process intelligence.


Where the Taxonomy Becomes Complicated

Indian textiles are rarely simple. Many traditions combine techniques. This is where the taxonomy must be used carefully.

For example, a textile may be woven with one technique and then dyed, painted, printed, or embroidered later. Some Odisha saris combine Ikat with extra-weft patterning. Ajrakh combines block printing and resist dyeing. Mata ni Pachedi may combine painting and block printing. Kodalikaruppur saris historically involved weaving, metallic thread, resist work, and painting or printing.

So the taxonomy should not be treated as a rigid cage. It is better understood as a map.

A map helps us enter the landscape, but it does not replace the richness of the landscape itself.

The most mature way to use this framework is to ask:

What is the primary location of design?
Are there secondary design interventions?
Does the textile combine more than one process?

This approach respects both structure and complexity.


From Names to Processes

The greatest value of this taxonomy is that it changes the way we see Indian textiles.

Instead of seeing Indian textiles only as a list of regional names, we begin to see them as systems of making.

Patola is not just a famous sari; it is a Pre-Loom Double Ikat marvel.
Jamdani is not just a delicate fabric; it is a supplementary-weft On-Loom ornamentation technique.
Paithani is not just a Maharashtrian sari; it involves a tapestry logic where design and structure are deeply connected.
Kalamkari is not just painted cloth; it is a Post-Loom tradition involving drawing, mordants, dyes, washing, and repeated hand processes.
Ajrakh is not just a printed textile; it is a sophisticated sequence of resist, mordant, dye, block, and repetition.

This is the deeper gift of the Pre-Loom, On-Loom, and Post-Loom taxonomy.

It allows us to move from names to processes, from surface to structure, and from decoration to design intelligence.

To understand Indian textiles deeply, we must ask not only where they come from, but how their design comes into being.

And for that, the taxonomy introduced in Mapping Indian Textiles gives us a simple, elegant, and powerful beginning.


Source Acknowledgement:
This article is based on and acknowledges the taxonomy introduced in Mapping Indian Textiles by Ruchira Ghose, prepared under the Tagore National Fellowship, Ministry of Culture, Government of India, and supported by the Indira Gandhi National Centre for the Arts, New Delhi.

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