Inside the Loom: From Graph to Knot

A finished rug gives little away about the work behind it. It lies flat and quiet on the floor, and it is easy to forget that it began as a drawing, passed through a dye bath, spent months on a loom and was washed, clipped and finished by several different hands. This is an outline of that journey, as it applies to a hand-knotted rug. Details vary between regions and workshops, but the essential sequence is widely shared.

1. Design

Every rug starts with a design. It may be a painting, a drawing, a digital composition or a reinterpretation of a traditional pattern. At this stage the designer decides on scale, proportion, composition and colour, and considers how the design will translate into knots, since not every line on paper can be reproduced faithfully in wool.

The designer also chooses the construction: how fine the knotting will be, what height the pile will be cut to, and which fibres will be used. A delicate floral design may need fine knotting to hold its curves; a bold abstract may be better served by a coarser weave that softens its edges.

2. The graph

The design is then converted into a form the weaver can follow. Traditionally this is a graph, a drawing on squared paper in which each square represents a single knot and is coloured accordingly. The weaver reads the graph row by row, tying each knot in the colour shown.

In Kashmir, weavers have long used the talim, a colour-coded script that records the design knot by knot and colour by colour. Rather than looking at a picture, the weaver follows written instructions, sometimes read aloud, that specify how many knots of which colour come next. It is one of the most distinctive practices in Indian carpet making.

Today, graphs are often produced digitally and printed at full scale, but the principle is unchanged: every knot is planned before a single one is tied.

3. Yarn

Next comes the yarn. For most rugs this means wool, sometimes with silk or other fibres. The wool is cleaned, carded and spun, either by hand or by machine. Hand-spun wool has natural irregularities that give a rug texture and variation; machine-spun wool is more uniform. The choice affects not only appearance but how the rug will feel and age.

Cotton is typically used for the warps and wefts, the rug's foundation, because it is strong and dimensionally stable.

4. Dyeing

The yarn is dyed in batches to the colours specified by the design. Dyers work from recipes and samples, but the result is always influenced by the fibre, the water, the temperature and the time in the dye bath. This is one reason why no two batches are identical, and why abrash, the gentle variation of tone across a rug, is a natural feature of handmade work.

After dyeing, the yarn is dried, often in open air, before being wound into balls ready for the loom.

5. The loom

The loom is dressed with warps: parallel threads stretched tightly from top to bottom. The number and spacing of warps determine the width of the rug and the fineness of its knotting. Setting up the loom is precise work, because any unevenness in tension will show in the finished rug.

6. Knotting

Now the weaving begins. The weaver ties a length of yarn around a pair of warps, pulls it tight and cuts it with a small knife, leaving the ends standing as pile. Knot by knot, the row is completed across the width of the loom. Then one or more wefts are passed through the warps and beaten down firmly with a heavy comb, locking the row of knots in place.

Row by row, the design rises from the bottom of the loom. Several weavers may work side by side on a wide rug. Depending on the size and fineness of the piece, knotting can take many weeks or many months.

A rug is drawn one knot at a time, and every knot is a decision made by a hand.

7. Washing

When the rug is cut from the loom, it is not yet finished. It is washed thoroughly with water to remove dust and residues from the weaving process, to settle the knots and to bring out the colour and lustre of the wool. Washing is a skilled process in its own right; methods vary, and the choice can influence the final character of the rug, from bright and crisp to soft and mellow.

The rug is then dried, often stretched to encourage it to lie flat and square. Handmade rugs rarely finish at exactly the intended dimensions; a small variation is normal.

8. Clipping and finishing

Once dry, the pile is clipped to an even height. This is painstaking work, done with shears or specialised tools, and it sharpens the design. In some rugs, the pile is carved around motifs to create a subtle relief.

Finishing also includes securing the edges, known as the selvedges, and the ends. The fringe of a hand-knotted rug is formed from the warp threads themselves, and it may be knotted, braided or left plain.

9. Inspection

Finally, the rug is inspected. Knots, edges, ends, colour and dimensions are checked, and any small repairs are made. What is not corrected is the natural character of handmade work: gentle abrash, minor variation in size, the slight irregularity of a fringe. These are the marks of the process, not faults in it.

And then, a room

Only then does the rug leave for its destination. The journey from drawing to floor involves designers, spinners, dyers, weavers, washers, finishers and inspectors, each bringing skill and judgement. When you see a hand-knotted rug in a room, you are looking at the combined attention of many people. We think that is worth knowing, and worth describing plainly.