Understanding Abrash

Look closely at a field of blue in a handmade rug and you will often see that it is not one blue at all. There may be a band where the colour deepens, a stretch where it turns a little paler, a subtle line where one shade gives way to another. This variation has a name, abrash, and it is one of the qualities that most clearly separates a handmade rug from a manufactured one.

What abrash is

Abrash describes visible variations in the tone of a single colour across a rug. It usually appears as horizontal bands running across the width, because a rug is built row by row from the bottom up. When the weaver moves from one batch of yarn to another, or when the yarn itself was dyed and spun with natural variation, that change shows as a shift in shade from one part of the rug to the next.

The word is widely used across the rug trade. What matters is less its origin than what it describes: the visible trace of the materials and the hand.

Where it comes from

Several things contribute to abrash, often together.

• Dye batches. Yarn is dyed in batches, and no two batches are exactly alike. Even with careful recipes, the temperature of the dye bath, the duration of dyeing and the character of the water all influence the result.
• The wool itself. Wool from different animals, or from different parts of a fleece, takes up dye differently. Hand-spun yarn, with its natural variations in thickness and twist, absorbs colour unevenly along its length.
• Natural dyes. Plant and mineral dyes tend to produce more variation than synthetic ones, and they may mellow at slightly different rates over time.
• The weaving process. A weaver may work from several balls of yarn in the same colour, and their tones can differ subtly.

Abrash can be pronounced or barely perceptible. In a rug with a large plain field, it is more visible; in a densely patterned rug, it tends to disappear into the design.

Why it matters

In mass-produced textiles, uniformity of colour is a sign of control. In a handmade rug, perfect uniformity would be unusual, and for many people it would also be less interesting. Abrash gives a field of colour movement and depth. It catches the light differently as you walk around the room. It makes a large area of a single colour feel alive rather than flat.

For collectors, abrash has long been appreciated as part of a rug's character. Some contemporary designers now work with it deliberately, choosing yarns and dye processes that encourage it, so that a plain rug reads more like a watercolour wash than a painted wall.

Abrash is the rug remembering how it was made: the batch of wool, the dye bath, the weaver's reach across the loom.

Is it ever a problem?

We describe abrash as natural character, and we mean it. It is not a defect, and it does not affect the durability or quality of a rug.

It is, however, worth knowing about before you buy, especially if you are choosing a rug with a large area of plain colour, or if you are ordering a made-to-order piece from a small sample. A sample shows the colour and texture of the yarn; it cannot predict precisely how that colour will move across a finished rug several metres long. We try to describe this honestly on each product page and in conversation, so that the rug you receive is the rug you expected.

It is also different from fading. Fading is a change in colour caused by prolonged exposure to strong sunlight, and it tends to affect the side of a rug facing a window. Abrash is present from the moment a rug comes off the loom.

Seeing it clearly

If you want to understand abrash in a particular rug, look at it in natural daylight, from both ends. Pile rugs look slightly different depending on the direction you view them from, because light falls on the pile differently. From one end the rug may look deeper and richer; from the other, lighter and more lustrous. This is called the pile direction, and it can make abrash more or less visible.

Photographs, however careful, can exaggerate or conceal it. If a large plain field is important to you, ask to see more images or a video in daylight.

Living with it

Most people who live with a handmade rug for a while stop noticing abrash as a separate thing. It simply becomes part of how the rug looks: the band of darker blue near one end, the paler stretch near the centre. Over time, many come to value it.

At Carprugs we do not try to eliminate abrash, and we do not charge extra for it. We aim to describe it clearly, photograph it faithfully, and help you decide whether a rug with a quieter or more pronounced variation will suit your room.