Disperse Blue 257
Name:C.I.Disperse Blue 257,C.I.113384
Molecular Structure: Single azo class
C.I.Disperse Blue 257,C.I.113384,CAS 84931-03-3/41622-04-2,C21H23BrN6O5,519.35
Molecular Formula:C21H23BrN6O5
Molecular Weight: 519.35
CAS Registry Number: 84931-03-3/41622-04-2
Manufacturing Methods : 2-Cyano-4-nitro-6-bromoaniline diazo, and N-(3-(bis(2-methoxyethyl)amino)phenyl)acetamide coupling.
Properties and Applications: red light blue. Used for dyeing and printing of polyester, also suitable for polyester superfine fiber, coloring rate is excellent, good fastness properties.
| Standard | Ironing Fastness | Light Fastness | Persperation Fastness | Washing Fastness | |||
| Fading | Stain | Fading | Stain | Fading | Stain | ||
| ISO | 5 | 4-5 | 6 | 5 | 5 | 5 | 5 |
List of Suppliers:
Disperse Blue 3R-SF,Disperse Blue S-3RF
HANGZHOU SHINYANG SAMWOO FINE CHEMICAL CO., LTD
Wenzhou Yanleng Chemical Co., Ltd.
Allilon Blue S-3RF( Allied Industrial Corp Ltd )
Begacron Blue 3RSF( PT Colorindo Aneka Chemicals )
Bezjian Polyester Ultra Blue R-LSW ( Bezjian Dye-Chem Inc. )
Blue S-2RF( Hangzhou Dikai Chemical Co Ltd )
Desron Blue S-2RF ( Sinochem Hebei Imp & Exp Corp )
Disperse Blue S-2RF( Ningbo Free Trade Zone T-Chemi Trading Co Ltd/Hangzhou Shinyang Samwoo Fine Chemical Co Ltd )
Intrasil Blue CKC ( Classic Dyestuffs Inc )
Kayalon Polyester Blue 3R-SF ( Nippon Kayak u Co Ltd )
Kiwalon Polyester Blue 3RF ( Kaseihin Kogyo Kyokai )
Sumikaron Blue S-3RF( Sumitomo Chemical Co. Ltd )
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