Product Name: Original Alkaline Dyeing Protective Agent (DO-188) Model NO.: DO-188 Application: Pretreatment Auxiliary, Textile Printing Auxiliary, Dying Auxiliary, Post-Processing Auxiliary Appearance: Liquid Kind: Wetting Agent Color: Light Yellow to Yellow Transparent Liquid Environmental Protection: Yes Certification: REACH EINECS: Do-188 Formula: Polymers CAS No.: Do-188 Trademark: Xerber Transport Package: Shady, Dry and Airproof Place Specification: 125kg plastic barrel Origin: Shanghai, China HS Code: 3707909000 Product Description ALKALINE DYEING PROTECTIVE AGENT DO-188DO-188 is a new special auxiliary to make polyester to be dyed when the initial pH values of the dyestuff bath is beyond 9. DO-188 can make disperse dyestuff safety and stability in alkaline environment, and obtain good color and depth similar to the traditional dyeing process with lower pH values of 3-5.DO-188 has strong buffer system of pH value and excellent dispersion leveling ability. This technique can improve the dyeing result of polyester and avoid many dyeing evils in traditional process such as the fabric stained by oligomers in lower pH values. This technique uses less water, less energy and less time to acquire better dyeing results. DO-188 is an environment-friendly chemical, nontoxic and non-corrosive, APEO free.Physical and chemistry propertiesAppearance Light yellow to yellow transparent liquidCompositionPolymersIon styleAnionic / Non-ionicp H value5-7 (1% aqueous solution)SolubilityDiluted in water at any proportionPerformance superioritiesBroad applicability, most common disperse dyestuffs can be applied.Excellent fabric dyeing result with good color and no oligomers stained.Strong buffer system in alkaline environment, protect disperse dyestuff stability to obtain good color. Efficient process technique with less water, less energy, less time by reducing the procedures.Reference methodsDosage: 1-2gpl (Different requirements with different fabric, it will be different, please test before using)General application process:Alkaline dyeing for polyester after Alkali reduction when the initial pH is beyond 9, DO-188 will adjust pH value under 9 to suitable for disperse dyestuff without acetic acid.It will be better if the fabrics can be cleaned by 90 ºC hot water before dyeing and after alkali reduction Process Curves Note 1. Most of common disperse dyes is stability when the pH value is under 9, while some disperse dyes have poor alkali resistance with light color. Please test the dyestuff before using this technique. DO-188 contains dye protective agent, the dyeing factories generally don't need change the dyes. 2. It will be freeze when the temperature lower 0ºC, and unfreeze beyond 0ºC, they are normal phenomenon.Package and Storage125kg plastic barrel, keep at shady, dry and airproof place for 6 months under sealed.Contact UsSHANGHAI XERBER SCIENCE AND TECHNOLOGY CO., LTDAddress: Room 5F-47A, Building 28, No. 140, Tianlin Rd, Xuhui Dis, Shanghai Post Code: 200233 Tel: +86-21-64170095 Fax:021-64170268 MP: +86-133-0161-1665 Web: www.xerber-tech.com