BurnOut Prints

 

BurnOut Prints


Cotton and other cellulosic fibers are destroyed by strong mineral acids or their acid salts. This procedure is sometimes referred to as “Burn Out”. A cotton / polyester blended fabric can be printed with a print paste containing the burn out chemicals, and after fixation, the cotton portion is destroyed and only the polyester remains. This allows a patterned lacey design to be imparted to the fabric. It also is possible to incorporate a disperse dye in the burn out paste and dye the polyester during the burn out phase. This process is very corrosive and requires special screens and special care in handling. Table below contains the “Burn Out” print paste formula.

Burn Out Print Paste Formula Chemical

Amount, g/kg

Details

Thickener

48

Guar gum

Ethanol

50

Emulsifying agent

20

Humectant

100

Glycerin

Anionic Wetter

20

Aluminum Sulfate

85

Creates mineral acid

Water

Bulk

Water to total volume

Total

1000