Marker Ink Dyestuff Basic Blue 7

• CAS No.: 2390-60-5
• Formula: C33h40cln3
• Colour: Blue
• Name: Basic Blue 7
• C.I.No.: Basic Blue 7
• Transport Package: Paperbox, Paperboard Drum, Iron Drum
• Model NO.: BB 7
• Specification: 25kgs
• Trademark: Emperor
• Origin: China
• HS Code: 32041700
• Production Capacity: 400kg/Month

Product Description

CAS 2390-60-5 basic blue 7 crystals price   Marker ink dyestuff CI basic blue 7 blue color ink 

Product Name: Basic Blue 7
C.I. No.: 42595
CAS No.: 2390-60-5



Molecular Formula: C33H40ClN3
Molecular Weight: 514.14
Relative Name:
Basic Blue BOC,Basic Blue 4RF,Basic Blue BO
Shade: colourful red blue light. Flash brown cream content.

Basic Blue 7 Dyeing Fastness(grade)

Fiber		Silk
Item		Sample change	white silk stain	white cotton stain
Light fastness		1	-	_
Flooding		4	4~5	4~5
Soaping (40ºC)		4	3	4~5
Perspiratio		4	2~3	4
Rubbing	dry	-	-	3~4
	wet	-	-	3~4
Ironing		4~5	-	4
Sulfuric acid resistant		1	-	-
Acetate resistant		4	-	-
Alkali resistant		4	-	-

Basic Blue 7 Properties and Applications:
Appearance is glittering golden brown powder or paste. It is slightly soluble in cold water, soluble in hot water, very soluble in alcohol, all in blue. The dye is brownish yellow in concentrated sulfuric acid, and turns red and yellow after dilution; It is olive green in concentrated nitric acid. The aqueous solution of dye is reddish brown after adding sodium hydroxide. On the dyed cotton, 10% sulfuric acid is turned into brownish yellow, and 10% sodium hydroxide is turned into red yellow. The acid stannous chloride solution turns red and yellow. It is bright blue on the silk and darker in the tungsten light.
Application:
1. Silk dyeing: carried out in an acetic acid bath. The dye is usually set after direct light fast blue GB or direct lake blue 5B dyeing.
Dyeing and brightening, the resulting color is gorgeous, and it is not suitable for other dyes. It can also be used in the printing and dyeing method of grafting agent to improve the dyeing fastness.
2. Acrylic dyeing: It can be used for acrylic dyeing, its light fastness is 2 grades, soaping fastness is 4 grades, perspiration fastness is 4 grades, ironing fastness 4~5 grade, dry rubbing fastness grade 3, wet rubbing fastness grade 3, dry cleaning fastness grade 4.
3. Wool dyeing: When used for wool dyeing, the light fastness is grade 1, and the soaping fastness is grade 2.
4. Cotton dyeing: It can be used for tannin mordant cotton fiber dyeing. The light fastness is grade 1, the soaping staining fastness is 4 grades, the water immersion staining fastness is 4~5 grades, the sweat staining fastness is grade 4, Ironing fastness 4~5 grade, dry rubbing fastness 3~4 grade, wet rubbing fastness 2~3 grade, sulfuric fastness 1 grade, acetic acid fastness grade 4, and pure alkali fastness 3 grade.
5. Other: It can be used for dyeing leather, paper, wood, bamboo, etc., and can be used for making carbon paper and ball pen oil.