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Hangzhou Keyi Advanced Materials Co., Ltd.

Leading manufacturer of Polyester DTY, Dope-Dyed Color DTY, Recycled Nylon DTY, and Dyeing Auxiliaries. With over 40,000 tons annual production capacity, we serve global markets across Asia, Europe, Africa, and South America.

About Us

Hangzhou Keyi Advanced Materials Co., Ltd. is a professional manufacturer specializing in synthetic fibers and chemical auxiliaries for the textile industry. We produce high-quality Polyester DTY (Drawn Textured Yarn) including raw white, black, bleached, and custom-colored variants using dope-dyeing technology.

Our product line also includes Recycled Nylon DTY and a full range of Dyeing Auxiliaries such as softeners, lubricants, and bulking agents. With an annual production capacity exceeding 40,000 tons, we ensure consistent supply and strict quality control.

Since 2021, we have expanded into international markets, exporting to countries in Europe, Asia, North Africa, and South America. We welcome global partners and distributors seeking reliable, sustainable textile solutions.

Hangzhou Keyi Factory Interior

Our Products

Premium Quality Fibers & Chemicals for the Global Textile Industry

Regular Polyester DTY

Regular Polyester DTY

High-tenacity textured polyester yarn in raw white, black, and bleached finishes. Ideal for weaving, knitting, and industrial applications.

  • • Denier range: 50D–300D
  • • Shrinkage: Low & stable
  • • Applications: Apparel, home textiles, technical fabrics
Dope Dyed Color DTY

Dope Dyed Color DTY

Eco-friendly colored yarn produced via dope-dyeing process. Saves water and energy compared to traditional dyeing methods.

  • • Wide color range available
  • • Excellent color fastness
  • • Sustainable production
Nylon DTY

Nylon DTY / Recycled Nylon DTY

High-performance nylon textured yarn made from virgin or recycled raw materials. Offers superior elasticity and durability.

  • • Denier: 40D–150D
  • • Recycled content available (certified)
  • • Ideal for sportswear, hosiery, and swimwear
Dyeing Auxiliaries

Dyeing Auxiliaries

Specialty chemicals for textile processing including softeners, lubricants, leveling agents, and bulking additives.

  • • High efficiency formulations
  • • Compatible with polyester & nylon
  • • Improve fabric hand feel and process stability

Custom Color Matching

We offer OEM color development services using dope-dyeing technology to match Pantone or customer-provided samples.

  • • Fast turnaround for sample approval
  • • Batch consistency guaranteed
  • • Eco-conscious pigment selection

Industrial Polyester Yarn

High-strength, heat-resistant DTY for technical textiles, automotive interiors, and industrial sewing threads.

  • • High modulus & low shrinkage
  • • UV and thermal stability
  • • Custom twist and finish options

Eco-Friendly Recycled Yarns

Sustainable fiber solutions made from post-consumer or post-industrial PET and nylon waste.

  • • GRS-certified materials
  • • Reduced carbon footprint
  • • Market demand for green textiles

Textile Processing Chemicals

Comprehensive range of auxiliaries for dyeing, finishing, and fabric treatment processes.

  • • Anti-pilling agents
  • • Anti-static finishes
  • • Water-repellent treatments

Why Choose Hangzhou Keyi?

Trusted by Global Partners for Quality, Innovation, and Reliability

40,000+ Tons Annual Capacity

Large-scale production ensures stable supply and competitive pricing for bulk orders.

Global Export Experience

Products exported to Europe, Asia, Africa, and South America with reliable logistics.

Eco-Friendly Production

Dope-dyeing and recycled materials reduce water, energy, and environmental impact.

Quality Assurance

Strict QC protocols and consistent batch-to-batch performance.

40,000+
Tons Annual Output
2021
Global Expansion
4
Continents Served
15958126769
Direct Contact

Frequently Asked Questions

What is Dope Dyed Color DTY?

Dope-dyed DTY is colored during the polymer extrusion process, resulting in superior color fastness and reduced environmental impact compared to piece-dyed yarns.

Do you offer recycled nylon products?

Yes, we produce high-quality recycled nylon DTY from post-consumer and industrial waste, available with GRS certification upon request.

Can you match custom colors?

Absolutely. We provide OEM color development using dope-dyeing technology to match Pantone or physical samples.

What markets do you export to?

Our products are exported to Europe, Asia, North Africa, and South America. We work with distributors and direct buyers worldwide.

How can I request a sample?

Please visit the official website or contact us directly via WhatsApp or phone to request product samples and technical specifications.

Get in Touch

For inquiries, samples, or partnership opportunities, contact Hangzhou Keyi directly.

浙江省杭州市萧山区瓜沥镇振工路399号
+86 15958126769
+86 15958126769

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