Tianjin Yadong Longxin Intermational Limited

Tianjin, China

• MOQ 100 Kilogram
• BlackPowder

We are offering direct black 19, annual output: 10, 000mt. product features: 1. Good solubility and leveling property; 2. Excellent black dye with little discoloration in the after-treatment; 3. Applicable for pad dyeing and dye with hydrogen peroxide; 4. Medium color fastness; applicable under high temperature and pressure applaction: 1. Dyeing of cotton, viscose, polyester/cotton, wool/viscose and printing of pure silk; 2. Dyeing of leather; 3. Dyeing of black writing paper, shoe paper board and corrugated paper, with high exhaust rate of dyeing and good light fastness.

• MOQ 100 Kilogram
• BlackPowder

We are offering direct black 22, direct fast black 22 annual output: 4, 000mt product features: 1. Solubility: 35g/l (80℃); 2. Excellent color fastness, economical black dye; 3. Suitable for fixing agent containing copper; 4. Suitable under high temperature and pressure applaction: dyeing of cotton, viscose, polyester/cotton, wool/viscose and printing of pure silk.

• MOQ 500 Kilogram
• whitePowder

We are offering tobias acid (2-amino-1-naphthalenesulfonic acid) white crystal, melting point is 272℃. Difficultly soluble in water, good solubility in hot water. Easily soluble in alkali-creating correspondence sulfonate, then coupling to lithol scarlet with 2-naphthol usage: for dyestuff intermediates, j-acid, lithol scarlet, naphthol and reactive orange38, red141, 196, 220, etc.

• MOQ 100 Kilogram
• RedPowder

We are offering direct red 23, direct fast red 23 annual output: 5, 000mt. product features: 1. Medium red dye with high exhaust rate; 2. Good color fastness, suitable for high-temperature dyeing. Applaction: 1. Dyeing of cotton, viscose, polyester/cotton, wool/viscose and printing of pure silk; 2. Universally appropriate to dyeing writing paper and paperboard.

• MOQ 500 Kilogram
• whitePowder

We are offering sulpho tobias acid, sulpho tobias acid(2-naphthy lamine-1, 5-disulfonic acid) it’s a white prism-like crystal. Show navy blue fluorescence when dissolved in sodium hydroxide solution, micro-soluble in water, difficult to dissolve in concentrated sulfuric acid. usage: it is used for reactive dyes, sensitization materials and intermediates for organic dyestuffs.

• MOQ 500 Kilogram
• whitesheet

We are offering beta naphthol, beta-naphthol (β- naphthol) melting point: 122℃ solubility: slightly soluble in water; soluble in ethanol, ether, chloroform and benzene. Be able to generate the corresponding naphthol salt when it is reacted with caustic soda and caustic potash solution. It’s 120 ℃ for the melting point of 2 - naphthol sodium, slightly soluble in soda and ammonia. usage: beta- naphthol is used to make the intermediate of aniline dye industry, the antioxidant of rubber industry, the evaporation promoter of salt industry , also for pigment, the oil paint and the render of glacial dye.

• MOQ 500 Kilogram
• whitePowder

We are offering 2 amino 5 naphthol 7 sulfonic acid, j acid（2-amino-5-naphthol-7-sulfonic acid） the dry of j-acid is grey powder, difficultly soluble in water. Easily soluble alkali-creating correspondence salt. The liquid of its’ sodium salt is blue fluorescence. It’s the chlorine compound of j acid is acicular yellow crystal, soluble in water, can be coupled to purple dyes by itself when in the sodium carbonate solution.