Dyeing Defects

Dyeing Defects

● Dyeing defects may result from

● Faulty or improper dyeing procedures,

● Faulty or improper preparation of fabric prior to dyeing,

or

● From imperfections in the material being dyed or

● To imperfections in the material itself.

Barre

In woven fabrics, a horizontal band of off-shaded

yarns extending from selvedge to selvedge.

Caused by differences in filling yarn size or

differences in tension of warp or filling yarn

Color Crocking

Color in a dyed fabric which rubs off rather easily

onto other fabric surface.

Caused by inadequate scouring at the completion of

the dyeing cycle.

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Color Bleeding

Loss of color from a dyed fabric when immersed

in a liquid.

The liquid subsequently becomes colored

Off Shade

An expression referring to

the fact that the color of

the dyed fabric does not

match the standard color

or reference sample.

Shade Bar

• A shade change in a

fabric that appears as a

horizontal selvedge to

selvedge change.

• Caused by a filling

change or loom stop

and subsequent start up

Stained Cross Bar

• In cross dyed fabric, usually of one color and white, where the dye of the colored portion stains the white portion sometimes called unclear cross dye.

• In solid color fabric, the term refers to specks of foreign fiber that have been caught in the material and do not become dyed

Stained / Streaked

• A discolored area on

the cloth.

• Caused by foreign

matter such as dirt,

grease, oil or residue of

sizing on the fabric

being dyed

Tender Spots

Places in the fabric that have been excessively

weakened, actually by exposure to processing of

chemicals.

Uneven Shade

Differences in the shade of a fabric from edge to

edge or one end of the fabric to the other