Shanghai Yuanhong Industrial Co., Ltd.

Textile Dyeing Auxiliaries

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Acid Dye Fixing Agent YH-5902

Applied to the post‑dyeing fixation procedure for polyamide fabrics dyed with acid dyes.

  • Hardware specifications
  • Physical & Chemical Properties

    Appearance: Dark brown liquid

    Ionic Type: Anionic

    pH Value (1% aqueous solution): 1.5‑3.5

    Solubility: Water‑dilutable at any ratio, disperses homogeneously in aqueous solutions

     

    Features & Advantages

    Primarily improves wash fastness, with the most notable enhancement on water‑soaking fastness. This acid fixing agent requires no acid adjustment: extra acid dosing and pH calibration of fixation bath are eliminated during application. Simply dilute the product with water under agitation before dosing, cutting fixation cycle time and streamlining operational workflows.

    Boosts diversified wet fastness performance of acid dyes bonded to polyamide fiber, including water immersion resistance, seawater resistance, washing fastness and perspiration fastness. The magnitude of performance improvement varies based on selected dye grades and fiber types.

    Compatibility Guidelines: Fully compatible with anionic auxiliaries; limited compatibility with non‑ionic auxiliaries; incompatible with cationic products.

     

    Application Instructions

    Dosage of Acid Dye Fixing Agent YH‑5902: 1‑4% o.w.f

    Processing Temperature: 70‑80℃

    Holding Time: 20‑30 min

    Reference Process Profile:

    Add the fixing agent at ambient temperature and circulate the bath for 5 minutes. Heat up at 1.5‑2℃ per minute to 70‑80℃, hold for 20‑30 minutes, then drain the spent bath upon process completion.

    Note: Conduct bench trials against your site‑specific production parameters to confirm optimal dosage and process settings for peak performance.

     

    Storage & Packaging

    Sealed shelf life hits 6 months under dry, cool, ventilated warehouse storage conditions. Standard packaging options are 50 kg and 125 kg plastic drums.

Company
Shanghai Yuanhong Industrial Co., Ltd.
Shanghai Yuanhong Industrial Co., Ltd.

Shanghai Yuanhong Industrial Co., Ltd. was founded by a group of seasoned industry experts and operates through its subsidiaries: Shanghai Zhongxi New Material Technology Co., Ltd., Zhejiang Yuanhong New Material Technology Co., Ltd., and Zhejiang Huafei Chemicals Co., Ltd.

We focus on textile fabrics, specialty yarns, apparel, packaging materials, leather products, the paper industry, and semiconductor packaging chemicals. We are dedicated to developing innovative products and co‑creating new specialty items with our customers, providing comprehensive technical services and integrated solutions.

Headquartered in the Shanghai Songjiang Industrial Zone Science and Technology Park, with our organic synthesis factory in Jiaxing, Zhejiang, and branch offices in multiple regions, we have built a strong R&D team through close collaboration with leading universities both domestically and internationally. After nearly a decade of sustained R&D, we have achieved major breakthroughs in home textiles, high‑end apparel fabrics, raising and sanding special products, and high‑grade microencapsulated coating materials, holding a number of core patents. By integrating functional material technologies with traditional industries such as textiles and leather, we create new functionality and value for our products, developing unique "first‑launch" products that contribute to broader national and industrial progress.

We value knowledge, talent, and intellectual property protection. With a clear roadmap, we aim to be certified as a National High‑Tech Enterprise within three years to strengthen our innovation capacity and market competitiveness. Guided by the principles of safety, environmental protection, ecology, and health, we are actively seeking to join ZDHC (Zero Discharge of Hazardous Chemicals) and are committed to making ongoing contributions to ecological protection. Through continuous innovation and product upgrades, we will develop more first‑launch products, deliver higher‑quality offerings to global customers, and jointly promote sustainable development across the industries we serve.

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