必应染料-您身边的染料专家

Direct Red 31

Name:C.I.Direct Red 31,C.I.29100

Molecular Structure: Double azo class

C.I.Direct Red 31,C.I.29100,CAS 5001-72-9,713.65,C32H21N5Na2O8S2,Direct Red 12B,Direct Fast Pink,Direct Pink 12B,Direct Pink 5B

C.I.Direct Red 31,C.I.29100,CAS 5001-72-9,713.65,C32H21N5Na2O8S2,Direct Red 12B,Direct Fast Pink,Direct Pink 12B,Direct Pink 5B

Molecular Formula:C32H21N5Na2O8S2

Molecular Weight: 713.65

CAS Registry Number:5001-72-9

Manufacturing Methods : aniline (2 Moore) diazo, and Bis(4-hydroxy-2-sulfonaphthalene-7-yl)amine coupling.

Properties and Applications:  colourful red blue light. Red brown powder. Soluble in water for product red solution, the solubility of 45 g/L (80 ℃), also can dissolve in fiber element solution, slightly soluble in alcohol for red orange, insoluble in other organic solvents. The strong sulfuric acid in orange to red light for brown, diluted dark blue light red precipitate generated; In nitric acid solution for orange brown, precipitation. The dye solution to generate strong hydrochloric acid purplish red precipitate; Add thick sodium hydroxide solution for orange brown. Copper ions in dyeing dim light; Iron ion in micro have change. Mainly used in viscose, such as cotton, silk, polyamide fiber cellulose fiber and viscose/silk blended fabric dyeing, can be used for pulp shading.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 3-4 4 2 1-2 1-2
AATCC 3-4 4 1 1 1-2

List of Suppliers:

JinZhou Dyestuffs Plant Hebei

ACDI Fast Pink 400%(Aakash Chemicals & Dyestuffs Inc)

Aizen Direct Rhoduline Red BH( Hodogaya Chemical Co Ltd )

Atl. DR Brill Red 12B Conc 200%(Classic Dyestuffs Inc)

Atul DirectRed 12B ( Atul Limited )

Best Direct Red BB ( Oriental Giant Dyes and Chemical Ind Corp )

Bitamine Direct Pink B ( Bharat Texdyes Industries )

Concorde Direct Red BB ( I-HWA Industrial Corp )

Condirec Red CA (Concord Commerce Company)

Dinamine Direct Red 12B (Dintex Dyechem Ltd)

Direct Fast Pink ( Golden Dyes Corpn (India) Pvt Ltd )

DirectFastPink 400%( Global Colors Inc. )

Direct Pink 12B(Sinochem Ningbo Imp & Exp Corp)

Direct Pink 12B (Nanjing Chemicals Import and Export Corp)

Direct Pink 12B ( Shandong Leling Huahong Dyes & Chemicals Co Ltd )

Direct Pink 3B)( PT Polkrik Chemicals Co )

Direct Pink Red 12B (Sinochem Jiangsu I/E Corp.)

Direct Red 12B ( Frado )

Direct Red 12B ( Asian Dyestuff Industries )

Direct Red 12B ( Thai Ambica Chemicals Co Ltd )

Direct Red 12B ( Colour Industries )

Direct Red 12B( Sinochem Tianjin Imp Exp Corp )

Direct Red 12B ( Golden Dyes Corpn (India) Pvt Ltd )

Direct Red 12B ( KCA Ltd )

Direct Red 12B ( National Dyechem Industries )

Direct Red 12B ( Cosmonaut. Chemicals )

Direct Red 12B ( Indo Colchem Ltd )

Direct Red 12B (Sinochem Jiangsu Wuxi Imp & Exp Corp)

DirectRed 12B (Amar Impex)

Direct Red 12B (Chemische Fabriek Triade BV)

Direct Red 12B(Brighten Colorchem BV)

Direct Red 12B( Sharda International )

Direct Red 12B(Fenchem Enterprises Ltd)

Direct Red 12B( Day-Glo Color Corp. )

Direct Red 12B(Shandong Qing Shun Chemical Co., Ltd.)

Direct Rose BS( Golden Dyes Corpn (India) Pvt Ltd )

Direct Rose RW( S A des Ets. Steiner )

Dycos direct Red 12B(Sinochem Shanghai I/E Corp/Schecho PuDong Corporation)

Eniacel Brilliant Red Solid 12B( Enia Industries Quimicas S.A. )

Enianil brilliant Red Soilid 12B ( Enia Industries Quimicas S.A. )

Enianil Fast Brilliant Red 12B ( Enia Industries Quimicas S.A. )

Hariect Red 12B ( Bhavi International Ltd )

Hispamin Pink 12B ( S A Robama )

Icho Direct Red 12B ( Indian Chemical Industries )(Nippon Kayak u Co Ltd)

Kemanarect Red 12B( Karsandas Mavji )

Leadirect Red 12B Extra Cone.( Leadertech Colors Inc. )

Nippon Fast Red BB ( Sumitomo Chemical Co. Ltd )

Pink 12B( ellenic Dyeworks SA )

Pyrazol Pink 2B ( Clariant GmbH )

Red 12B (Monarch Dyestuffs Industries)

Red 12B ( Jagson Colorchem Ltd )

Red 12B (Sinochem Liaoning Import & Export Corporation)

Red 12B ( JK Promotions )

Red 12B(United Chemie)

Red 12B(Hangzhou Dikai Chemical Co Ltd)

Rifa Direct Pink [B](Rifa Industrial Co Ltd)

Sandal Direct Pink 3B ( Sandal Dyestuff Industries (Pvt) Ltd )

Solar Pink 2B( Clariant GmbH )

Triamine Pink 12B( Chromatourgia Tripoleos SA )

Vicorect Red 12B(Victory Colour Chem Industries)


Leave a Reply