Silk is a very light natural fiber made by the silkworm.  It is the strongest natural fiber known and makes for a luxurious soft-smooth fabric with excellent insulating properties in both cool and warm conditions.  Orco Milling™, Orco Nylosol™, Orcolan Neutral™ and OrcoSet™ dyes provide bright and washfast colors on silk by both dyeing and printing processes.

Orco Milling™ Acid Dyes for Silk

Orco Milling™ dyes are characterized by their high wetfastness and their wide range of bright colors. Although their lightfastness falls somewhat short of the metallized group of acid colors they do offer a brighter shade range to choose from. These dyes are used primarily in stock and package dyeing but have been used in piece dyeing where careful temperature and pH control is possible.

Orcolan Neutral™ Acid Dyes for Silk

Orcolan Neutral™ dyes for silk, are 2:1 premetalized acid dyes. Because of their large molecular size, these behave similarly to the Orco Milling™ dyes in application and strike rate. Because of the metal complex (Cr+3 usually), these dyes exhibit excellent light and wet fastness properties.

Orco Nylosol™ Acid Dyes for Silk

Orco Nylosol™ dyes for silk are characterized by their excellent leveling and penetrating properties in addition to their wide range of bright colors. Although this range does not exhibit the high wet and light fastness properties of the Milling and Metallized dyes, when selected carefully and after-treated properly, good fastness may be achieved. This class of dye consists of two groups, each having somewhat different affinity for silk and requiring slightly different application methods.

ImageNameSolubilityLightfastnessIIA Wash Test StainingDetails
Blue PR
Blue PR
Black CB New
Black CB New
Black CBLW
Black CBLW
Black DW
Black DW
Black FVS
Black FVS
Black GD
Black GD
Black JM-NM
Black JM-NM
Black WA
Black WA
Blue BRL 200%
Blue BRL 200%
Blue E-BRLS
Blue E-BRLS
Blue GLF
Blue GLF
Blue SWA
Blue SWA
Brilliant Blue 3BLF
Brilliant Blue 3BLF
Brilliant Blue B
Brilliant Blue B
Brilliant Blue RL 200%
Brilliant Blue RL 200%
Brilliant Yellow 5G 200%
Brilliant Yellow 5G 200%
Brown BRL
Brown BRL
Green C3G 200%
Green C3G 200%
Navy Blue LFWG
Navy Blue LFWG
Orange 3G Conc
Orange 3G Conc
Orange SLF 200%
Orange SLF 200%
Pink BRLF
Pink BRLF
Red 2GP
Red 2GP
Red 2RDF
Red 2RDF
Red 8BRS
Red 8BRS
Red GN 200%
Red GN 200%
Red HCO
Red HCO
Rubine 5BLF
Rubine 5BLF
Scarlet CL
Scarlet CL
Scarlet GN
Scarlet GN
Turquoise Blue 3G
Turquoise Blue 3G
Yellow 4GR 250%
Yellow 4GR 250%
Yellow 9GL 200%
Yellow 9GL 200%
Yellow FSC
Yellow FSC

Orcoset™ Acid Dyes for Silk

Orcoset™ dyes for silk are a special group of modified 1:2 metal complex acid dyes exhibiting high fastness levels and similar dyeing properties. All dyes are applied at a pH of 4.5 in conjunction with Orcogal SET.  These dyes find application in stock, piece, and package dyeing, and printing.