Temporary pressure marks

Temporary pressure marks are a characteristic of cut pile carpets.

When first unrolled and prior to installation most cut pile carpets will have pressure marks across the roll. Pressure marks are due to the weight of the roll when stored pressing on the pile.

As soon as the carpet is unrolled there is no longer any weight bearing on the pile.

The pile starts to spring back to its original shape once the carpet is unrolled.

Pressure marks disappear quickly and usually soon after the carpet has been installed.

The wool pile is very dry when the carpet is first unrolled. Once exposed to the atmosphere the pile will start to absorb moisture from the atmosphere (up to 17%).

Moisture regain causes the pile to become denser and the pile to spring back to its original shape.

Pressure marks are noticeable because the pile is pristine and not trafficked.

Three main factors cause pressure marks to disappear quickly.

1. Once unrolled there is no heavy weight pressing on the pile

2. The carpet absorbs up to 17% moisture from the atmosphere.

3. The pristine carpet finish is exposed to foot traffic.

Pressure bands running down the length of the carpet may also be visible prior to installation. These regularly spaced bands are caused by pressure from the conveyor belts on our roll up table. There will also be a band approximately 12mm wide in the centre of the roll. This band is caused by pressure from the wheel that measures the length of the roll.

These bands are also temporary and disappear for the same reasons stated above.

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