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WBWeft Bridge

Fabric glossary

The words that appear in a spec sheet, a mill email or an inspection report — defined without the trade-school detour.

AQL

Acceptable Quality Limit — the sampling rule for inspection.

Carded yarn

Yarn that is opened and aligned but not combed — the standard for fleece and denim.

Colour fastness

How well a dyed fabric resists fading and bleeding.

Combed yarn

Yarn with short fibres removed, giving a smoother, stronger fabric.

Dye lot

One batch of dyeing; shade can vary slightly between lots.

Fleece

A knitted fabric with a brushed inside, used for hoodies.

French terry

A knit with loops on the inside, lighter than fleece.

Greige fabric

Unfinished fabric, straight off the loom or knitting machine.

GSM

Grams per square metre — the standard measure of fabric weight.

Hand feel

The tactile quality of a fabric — how it feels in the hand.

Interlock

A double knit that is smooth on both faces and does not curl.

Jersey

The basic single knit, used for t-shirts.

Lab dip

A small dyed sample that approves the bulk colour.

Mercerization

A caustic treatment that makes cotton stronger, smoother and more lustrous.

Ounce (oz/yd²)

The US measure of fabric weight, common for knits and denim.

Pilling

Small fibre balls that form on the surface through rubbing.

Poplin

A fine plain weave with a slight crosswise rib, standard for shirting.

Rib

A knit with vertical ridges that stretches widthways, used for cuffs and neckbands.

Selvedge

The self-finished edge of a woven fabric.

Shrinkage

How much the fabric changes dimension after washing.

Slub

A deliberately irregular yarn that creates texture in the fabric.

Twill

A weave with diagonal lines, used for chinos, denim and workwear.

Warp

The lengthwise yarns in a woven fabric.

Weft

The crosswise yarns in a woven fabric.