Appearance:	Bright-black flake or grain
Shade:	no difference as the standard
Strength, score:	100 as the standard product
Moistness, %:	≤6
Insoluble matters in the solution of sodium sulfide, %:	≤0.3

Fastness of dyes on cotton fabrics:

Dyeing depth, %	Res- istance Sunlight	Resistance washing with soap at 95°C			Resistance perspiration						Rubbing		Ironing at 200°C
					acid			alkali
		Change	Stain on cotton	Stain on wool	Change	Stain on cotton	Stain on wool	Change	Stain on cotton	Stain on wool	Dry	wet	Change (after 4 hours)
6	6	3-4	4	4-5	4	4-5	4-5	4	4-5	4-5	2-3	1-2	4

Price: Minimum Order Quantity:Negotiable Trial OrderMinimum Order Quantity:5 Ton/TonsTrial OrderPort:Tianjin PortPackaging Details:25KGS DRUMS,CARTON,PPBAG,OR FOLLOW THE REQUIREMENT OF THE CUSTOMER,ACCORDING TO THE PACKAGE AND STRENGTHDelivery Time:15-30DAYS OR ACCORDING THE REQUIREMENT OF CUSTOMERSPayment Terms:L/C,D/A,D/P,T/TSupply Ability:5000 Ton/Tons per Year

The buyer can give me your samples ,we will test your samples and according the result to give a offer ,we can prove the quality .