NANTONG LONGRUN CHEMICAL CO., LTD.
PRODUCT MANUFACTURER - OEM/ODM

Nantong Longrun Chemical Co., Ltd. is an enterprise specializing in the production and sales of cationic dyes and intermediates.

Founded in 1990, the company was formerly known as the trade union branch of Shanghai No. 3 Dyestuff and Chemical Factory. In 2012, we moved to Yangkou Chemical Industry Park, Rudong County. Founded in 1990, the company was formerly known as the trade union branch of Shanghai No. 3 Dyestuff and Chemical Factory. In 2012, we moved to Yangkou Chemical Industry Park, Rudong County.
ABOUT US
  • 1990

    Founded in

  • 30+

    We have more than 30 years

  • 10000T

    Production capacity

Product

We focus on improving our management level, brand image and environmental protection, and our products have been certified by OEKO TEX and ZDHC.

Products Recommended

We have extremely complete and large-scale manufacturing capabilities, and can make customized products, OEM or ODM according to customer needs.

  • Basic Blue SD-GSL

    Basic Blue SD-GSL
    Brilliant Color Spectrum: Our dyes offer an extensive range of vibrant, rich colors that will inspire your imagination. From bold and intense hues to subtle pastels, you'll find the perfect shade to suit your project.
    Superior Pigmentation: With our dyes, a little goes a long way. Thanks to their concentrated formula, you can achieve remarkable color saturation with just a small amount of dye, ensuring cost-effectiveness and long-lasting results.
    Easy to Use: Our dyes are user-friendly, making them suitable for both beginners and professionals. Simply follow the instructions, and you'll be able to achieve consistent and predictable results every time. Whether you're dyeing fabrics, paper, or other materials, our dyes are designed for hassle-free application.
    Versatile Applications: Our dyes are suitable for a wide range of projects and materials. They can be used on natural and synthetic fabrics, including cotton, silk, wool, and more. Additionally, they work seamlessly on paper, wood, and other porous surfaces, making them ideal for various crafts, fashion design, home decor, and artistic endeavors.
    Fade-Resistant: We understand the importance of longevity when it comes to your creations. That's why our dyes are formulated to be fade-resistant, ensuring that your vibrant colors stay true over time, even with repeated washing or exposure to sunlight.
    Non-Toxic and Safe: Your safety is our priority. Our dyes are non-toxic, non-hazardous, and comply with the highest industry standards. Use them with confidence, knowing that they are safe for you, your family, and the environment.
  • Basic Blue SD-GRRL

    Basic Blue SD-GRRL
    Brilliant Color Spectrum: Our dyes offer an extensive range of vibrant, rich colors that will inspire your imagination. From bold and intense hues to subtle pastels, you'll find the perfect shade to suit your project.
    Superior Pigmentation: With our dyes, a little goes a long way. Thanks to their concentrated formula, you can achieve remarkable color saturation with just a small amount of dye, ensuring cost-effectiveness and long-lasting results.
    Easy to Use: Our dyes are user-friendly, making them suitable for both beginners and professionals. Simply follow the instructions, and you'll be able to achieve consistent and predictable results every time. Whether you're dyeing fabrics, paper, or other materials, our dyes are designed for hassle-free application.
    Versatile Applications: Our dyes are suitable for a wide range of projects and materials. They can be used on natural and synthetic fabrics, including cotton, silk, wool, and more. Additionally, they work seamlessly on paper, wood, and other porous surfaces, making them ideal for various crafts, fashion design, home decor, and artistic endeavors.
    Fade-Resistant: We understand the importance of longevity when it comes to your creations. That's why our dyes are formulated to be fade-resistant, ensuring that your vibrant colors stay true over time, even with repeated washing or exposure to sunlight.
    Non-Toxic and Safe: Your safety is our priority. Our dyes are non-toxic, non-hazardous, and comply with the highest industry standards. Use them with confidence, knowing that they are safe for you, your family, and the environment.
  • Basic Black SD-O

    Basic Black SD-O
    Brilliant Color Spectrum: Our dyes offer an extensive range of vibrant, rich colors that will inspire your imagination. From bold and intense hues to subtle pastels, you'll find the perfect shade to suit your project.
    Superior Pigmentation: With our dyes, a little goes a long way. Thanks to their concentrated formula, you can achieve remarkable color saturation with just a small amount of dye, ensuring cost-effectiveness and long-lasting results.
    Easy to Use: Our dyes are user-friendly, making them suitable for both beginners and professionals. Simply follow the instructions, and you'll be able to achieve consistent and predictable results every time. Whether you're dyeing fabrics, paper, or other materials, our dyes are designed for hassle-free application.
    Versatile Applications: Our dyes are suitable for a wide range of projects and materials. They can be used on natural and synthetic fabrics, including cotton, silk, wool, and more. Additionally, they work seamlessly on paper, wood, and other porous surfaces, making them ideal for various crafts, fashion design, home decor, and artistic endeavors.
    Fade-Resistant: We understand the importance of longevity when it comes to your creations. That's why our dyes are formulated to be fade-resistant, ensuring that your vibrant colors stay true over time, even with repeated washing or exposure to sunlight.
    Non-Toxic and Safe: Your safety is our priority. Our dyes are non-toxic, non-hazardous, and comply with the highest industry standards. Use them with confidence, knowing that they are safe for you, your family, and the environment.
  • Basic Yellow SD-5GL

    Basic Yellow SD-5GL
    Brilliant Color Spectrum: Our dyes offer an extensive range of vibrant, rich colors that will inspire your imagination. From bold and intense hues to subtle pastels, you'll find the perfect shade to suit your project.
    Superior Pigmentation: With our dyes, a little goes a long way. Thanks to their concentrated formula, you can achieve remarkable color saturation with just a small amount of dye, ensuring cost-effectiveness and long-lasting results.
    Easy to Use: Our dyes are user-friendly, making them suitable for both beginners and professionals. Simply follow the instructions, and you'll be able to achieve consistent and predictable results every time. Whether you're dyeing fabrics, paper, or other materials, our dyes are designed for hassle-free application.
    Versatile Applications: Our dyes are suitable for a wide range of projects and materials. They can be used on natural and synthetic fabrics, including cotton, silk, wool, and more. Additionally, they work seamlessly on paper, wood, and other porous surfaces, making them ideal for various crafts, fashion design, home decor, and artistic endeavors.
    Fade-Resistant: We understand the importance of longevity when it comes to your creations. That's why our dyes are formulated to be fade-resistant, ensuring that your vibrant colors stay true over time, even with repeated washing or exposure to sunlight.
    Non-Toxic and Safe: Your safety is our priority. Our dyes are non-toxic, non-hazardous, and comply with the highest industry standards. Use them with confidence, knowing that they are safe for you, your family, and the environment.
  • Basic Red SD-GRL

    Basic Red SD-GRL
    Brilliant Color Spectrum: Our dyes offer an extensive range of vibrant, rich colors that will inspire your imagination. From bold and intense hues to subtle pastels, you'll find the perfect shade to suit your project.
    Superior Pigmentation: With our dyes, a little goes a long way. Thanks to their concentrated formula, you can achieve remarkable color saturation with just a small amount of dye, ensuring cost-effectiveness and long-lasting results.
    Easy to Use: Our dyes are user-friendly, making them suitable for both beginners and professionals. Simply follow the instructions, and you'll be able to achieve consistent and predictable results every time. Whether you're dyeing fabrics, paper, or other materials, our dyes are designed for hassle-free application.
    Versatile Applications: Our dyes are suitable for a wide range of projects and materials. They can be used on natural and synthetic fabrics, including cotton, silk, wool, and more. Additionally, they work seamlessly on paper, wood, and other porous surfaces, making them ideal for various crafts, fashion design, home decor, and artistic endeavors.
    Fade-Resistant: We understand the importance of longevity when it comes to your creations. That's why our dyes are formulated to be fade-resistant, ensuring that your vibrant colors stay true over time, even with repeated washing or exposure to sunlight.
    Non-Toxic and Safe: Your safety is our priority. Our dyes are non-toxic, non-hazardous, and comply with the highest industry standards. Use them with confidence, knowing that they are safe for you, your family, and the environment.
  • Basic Yellow SD-GL

    Basic Yellow SD-GL
    Brilliant Color Spectrum: Our dyes offer an extensive range of vibrant, rich colors that will inspire your imagination. From bold and intense hues to subtle pastels, you'll find the perfect shade to suit your project.
    Superior Pigmentation: With our dyes, a little goes a long way. Thanks to their concentrated formula, you can achieve remarkable color saturation with just a small amount of dye, ensuring cost-effectiveness and long-lasting results.
    Easy to Use: Our dyes are user-friendly, making them suitable for both beginners and professionals. Simply follow the instructions, and you'll be able to achieve consistent and predictable results every time. Whether you're dyeing fabrics, paper, or other materials, our dyes are designed for hassle-free application.
    Versatile Applications: Our dyes are suitable for a wide range of projects and materials. They can be used on natural and synthetic fabrics, including cotton, silk, wool, and more. Additionally, they work seamlessly on paper, wood, and other porous surfaces, making them ideal for various crafts, fashion design, home decor, and artistic endeavors.
    Fade-Resistant: We understand the importance of longevity when it comes to your creations. That's why our dyes are formulated to be fade-resistant, ensuring that your vibrant colors stay true over time, even with repeated washing or exposure to sunlight.
    Non-Toxic and Safe: Your safety is our priority. Our dyes are non-toxic, non-hazardous, and comply with the highest industry standards. Use them with confidence, knowing that they are safe for you, your family, and the environment.
  • Disperse Cation Blue SD-BL

    Disperse Cation Blue SD-BL
    Brilliant Color Spectrum: Our dyes offer an extensive range of vibrant, rich colors that will inspire your imagination. From bold and intense hues to subtle pastels, you'll find the perfect shade to suit your project.
    Superior Pigmentation: With our dyes, a little goes a long way. Thanks to their concentrated formula, you can achieve remarkable color saturation with just a small amount of dye, ensuring cost-effectiveness and long-lasting results.
    Easy to Use: Our dyes are user-friendly, making them suitable for both beginners and professionals. Simply follow the instructions, and you'll be able to achieve consistent and predictable results every time. Whether you're dyeing fabrics, paper, or other materials, our dyes are designed for hassle-free application.
    Versatile Applications: Our dyes are suitable for a wide range of projects and materials. They can be used on natural and synthetic fabrics, including cotton, silk, wool, and more. Additionally, they work seamlessly on paper, wood, and other porous surfaces, making them ideal for various crafts, fashion design, home decor, and artistic endeavors.
    Fade-Resistant: We understand the importance of longevity when it comes to your creations. That's why our dyes are formulated to be fade-resistant, ensuring that your vibrant colors stay true over time, even with repeated washing or exposure to sunlight.
    Non-Toxic and Safe: Your safety is our priority. Our dyes are non-toxic, non-hazardous, and comply with the highest industry standards. Use them with confidence, knowing that they are safe for you, your family, and the environment.
  • Basic Blue X-GSL

    Basic Blue X-GSL
    Brilliant Color Spectrum: Our dyes offer an extensive range of vibrant, rich colors that will inspire your imagination. From bold and intense hues to subtle pastels, you'll find the perfect shade to suit your project.
    Superior Pigmentation: With our dyes, a little goes a long way. Thanks to their concentrated formula, you can achieve remarkable color saturation with just a small amount of dye, ensuring cost-effectiveness and long-lasting results.
    Easy to Use: Our dyes are user-friendly, making them suitable for both beginners and professionals. Simply follow the instructions, and you'll be able to achieve consistent and predictable results every time. Whether you're dyeing fabrics, paper, or other materials, our dyes are designed for hassle-free application.
    Versatile Applications: Our dyes are suitable for a wide range of projects and materials. They can be used on natural and synthetic fabrics, including cotton, silk, wool, and more. Additionally, they work seamlessly on paper, wood, and other porous surfaces, making them ideal for various crafts, fashion design, home decor, and artistic endeavors.
    Fade-Resistant: We understand the importance of longevity when it comes to your creations. That's why our dyes are formulated to be fade-resistant, ensuring that your vibrant colors stay true over time, even with repeated washing or exposure to sunlight.
    Non-Toxic and Safe: Your safety is our priority. Our dyes are non-toxic, non-hazardous, and comply with the highest industry standards. Use them with confidence, knowing that they are safe for you, your family, and the environment.
  • Basic Blue X-GRRL

    Basic Blue X-GRRL
    Brilliant Color Spectrum: Our dyes offer an extensive range of vibrant, rich colors that will inspire your imagination. From bold and intense hues to subtle pastels, you'll find the perfect shade to suit your project.
    Superior Pigmentation: With our dyes, a little goes a long way. Thanks to their concentrated formula, you can achieve remarkable color saturation with just a small amount of dye, ensuring cost-effectiveness and long-lasting results.
    Easy to Use: Our dyes are user-friendly, making them suitable for both beginners and professionals. Simply follow the instructions, and you'll be able to achieve consistent and predictable results every time. Whether you're dyeing fabrics, paper, or other materials, our dyes are designed for hassle-free application.
    Versatile Applications: Our dyes are suitable for a wide range of projects and materials. They can be used on natural and synthetic fabrics, including cotton, silk, wool, and more. Additionally, they work seamlessly on paper, wood, and other porous surfaces, making them ideal for various crafts, fashion design, home decor, and artistic endeavors.
    Fade-Resistant: We understand the importance of longevity when it comes to your creations. That's why our dyes are formulated to be fade-resistant, ensuring that your vibrant colors stay true over time, even with repeated washing or exposure to sunlight.
    Non-Toxic and Safe: Your safety is our priority. Our dyes are non-toxic, non-hazardous, and comply with the highest industry standards. Use them with confidence, knowing that they are safe for you, your family, and the environment.
  • Basic Blue X-GRL

    Basic Blue X-GRL
    Brilliant Color Spectrum: Our dyes offer an extensive range of vibrant, rich colors that will inspire your imagination. From bold and intense hues to subtle pastels, you'll find the perfect shade to suit your project.
    Superior Pigmentation: With our dyes, a little goes a long way. Thanks to their concentrated formula, you can achieve remarkable color saturation with just a small amount of dye, ensuring cost-effectiveness and long-lasting results.
    Easy to Use: Our dyes are user-friendly, making them suitable for both beginners and professionals. Simply follow the instructions, and you'll be able to achieve consistent and predictable results every time. Whether you're dyeing fabrics, paper, or other materials, our dyes are designed for hassle-free application.
    Versatile Applications: Our dyes are suitable for a wide range of projects and materials. They can be used on natural and synthetic fabrics, including cotton, silk, wool, and more. Additionally, they work seamlessly on paper, wood, and other porous surfaces, making them ideal for various crafts, fashion design, home decor, and artistic endeavors.
    Fade-Resistant: We understand the importance of longevity when it comes to your creations. That's why our dyes are formulated to be fade-resistant, ensuring that your vibrant colors stay true over time, even with repeated washing or exposure to sunlight.
    Non-Toxic and Safe: Your safety is our priority. Our dyes are non-toxic, non-hazardous, and comply with the highest industry standards. Use them with confidence, knowing that they are safe for you, your family, and the environment.
  • Basic Black X-O

    Basic Black X-O
    Brilliant Color Spectrum: Our dyes offer an extensive range of vibrant, rich colors that will inspire your imagination. From bold and intense hues to subtle pastels, you'll find the perfect shade to suit your project.
    Superior Pigmentation: With our dyes, a little goes a long way. Thanks to their concentrated formula, you can achieve remarkable color saturation with just a small amount of dye, ensuring cost-effectiveness and long-lasting results.
    Easy to Use: Our dyes are user-friendly, making them suitable for both beginners and professionals. Simply follow the instructions, and you'll be able to achieve consistent and predictable results every time. Whether you're dyeing fabrics, paper, or other materials, our dyes are designed for hassle-free application.
    Versatile Applications: Our dyes are suitable for a wide range of projects and materials. They can be used on natural and synthetic fabrics, including cotton, silk, wool, and more. Additionally, they work seamlessly on paper, wood, and other porous surfaces, making them ideal for various crafts, fashion design, home decor, and artistic endeavors.
    Fade-Resistant: We understand the importance of longevity when it comes to your creations. That's why our dyes are formulated to be fade-resistant, ensuring that your vibrant colors stay true over time, even with repeated washing or exposure to sunlight.
    Non-Toxic and Safe: Your safety is our priority. Our dyes are non-toxic, non-hazardous, and comply with the highest industry standards. Use them with confidence, knowing that they are safe for you, your family, and the environment.
  • Basic Fluorescent Yellow X-10GFF

    Basic Fluorescent Yellow X-10GFF
    Brilliant Color Spectrum: Our dyes offer an extensive range of vibrant, rich colors that will inspire your imagination. From bold and intense hues to subtle pastels, you'll find the perfect shade to suit your project.
    Superior Pigmentation: With our dyes, a little goes a long way. Thanks to their concentrated formula, you can achieve remarkable color saturation with just a small amount of dye, ensuring cost-effectiveness and long-lasting results.
    Easy to Use: Our dyes are user-friendly, making them suitable for both beginners and professionals. Simply follow the instructions, and you'll be able to achieve consistent and predictable results every time. Whether you're dyeing fabrics, paper, or other materials, our dyes are designed for hassle-free application.
    Versatile Applications: Our dyes are suitable for a wide range of projects and materials. They can be used on natural and synthetic fabrics, including cotton, silk, wool, and more. Additionally, they work seamlessly on paper, wood, and other porous surfaces, making them ideal for various crafts, fashion design, home decor, and artistic endeavors.
    Fade-Resistant: We understand the importance of longevity when it comes to your creations. That's why our dyes are formulated to be fade-resistant, ensuring that your vibrant colors stay true over time, even with repeated washing or exposure to sunlight.
    Non-Toxic and Safe: Your safety is our priority. Our dyes are non-toxic, non-hazardous, and comply with the highest industry standards. Use them with confidence, knowing that they are safe for you, your family, and the environment.

News & Event

We have extremely complete and large-scale manufacturing capabilities, and can make customized products, OEM or ODM according to customer needs.

  • Company News

    Meeting the challenges of the textile industry of the future.

    With the rapid development of science and technology, mankind's awareness of ecological and environmental protection is rising, "ecological and environmental protection" has gradually become the stand...

  • Industry News

    Dyeing methods and mechanisms of cationic dyes

    Cationic dyes are special dyes for acrylonitrile fibres, and the dyeing method is near-boiling dyeing in a weakly acidic (pH around 4.5) bathtub with acetic acid and sodium acetate as buffers, in the ...

  • Industry News

    Types of cationic dyes.

    Cationic dyes can be classified according to two classifications: application properties and chemical structure type. According to the application performance, China classifies the existing dyes into ...

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