Direct Dyes Red 81 for Paper Dyeing
Product Description
Product Name: Direct Red 81
C.I. No.: 28160
CAS No.: 2610-11-9/12237-71-7
Molecular Formula: C29H19N5Na2O8S2
Molecular Weight: 675.6
Relative Name:
Direct Red 4B,Direct Fast Red 4B,Direct Fast Red 8B,Duasyn Direct Red 8B,Pergasol Red 2B.
Shade: red powder
Direct Red 81 Physical Properties and light fastness, solubility.
| Direct Red 81 | |
| Dyeing depth % | 2 |
| Insolubles % | 0.15 |
| Light Fastness | 4 |
| Washing Fatness | 4 |
| Rubbing fastness(dry) | 4-5 |
| Rubbing fastness(wet) | 3 |
Direct Red 81 Properties and Applications:
Soluble in water for product red, soluble in soluble fiber element, slightly soluble in alcohol, insoluble in other organic solvents. The strong sulfuric acid dyes for dark blue, shalloworange brown after diluted precipitation; In nitric acid solution for colourful blue, to red light brown. The dye solution to join strong hydrochloric acid foryellow olive brown precipitation; Add thick sodium hydroxide solution has the purple precipitation. 60 ºC in the solubility of 40 g/L, not sensitive to that fights. For colourful red light. Copper ions in dyeing color slightly turn blue, encounter iron ion colored light basic unchanged. For A class SDC classification. To dead cotton cover the gender is poorer. Cotton neutral and alkaline white are level 5, viscose and minus sex of neutral white for 4 ~ 5 levels. Used for dyeing cotton and viscose, also can be used for paper color.
Package, 25KG/DRUM, CARTON BOX, BAG
Note: The data contained here are based on our current knowledge and experience. It is the responsibility of user to test our products before the final application.
EXHIBITIONS PHOTOS:
FACTORY PHOTOS:
Product Categories : DIRECT DYE
Other Products
Hot Products
Foshan Meijing glass mosaic mould for manufactureCeramic Mold for mosaicceramice tile mold for manufacturing companyglass mosaic paving mosaic mouldplastic tile mold and grid mouldingglass mosaic moulds of fiber resinglass moasic fiber resin mouldsMoulding plastic for glass mosaicbest selling products lead free pigment for glass mosaicpaving blocks moulds for glass mosaic building raw materialmosaic plastic mould for glass mosaic raw materials factory10% off green yellow color glass mosaic pigment manufacturergood quality colorful aluminum floor jack for glass mosaic manufactureAnping mosaic tile 80g alkali resistant fiberglass mesh fiber nettingglue tiles to wood for pasting mosaic back polyester mesh2017 germany fiberglass sticky mesh for waterproofing making mosaic mesh