The textile dyeing industry is one of the important manufacturing sectors, contributing greatly to the fashion and garment industry. To meet the strict requirements on quality, color, durability and aesthetics of the products, the use of chemicals such as NaOH (Sodium Hydroxide), FeCl2 (Iron II Chloride) , and H2O2 (Hydrogen Peroxide) are indispensable. These chemicals not only support the production process but also ensure effective wastewater treatment, contributing to environmental protection. This article will analyze in detail the properties and roles of each chemical in the textile dyeing industry.
H2O2 (Hydrogen Peroxide)
Characteristic
- Scientific name: Hydrogen Dioxide.
- Common contents: 35%, 50%.
- Nature:
- Strong oxidizing properties.
- Clear, colorless solution.
- Packing:
- Containers with capacity of 30kg, 250kg, 500kg, 5000kg, 10.000kg, 30.000kg.
- Origin: Thailand, Korea, China.
Role in the textile dyeing industry
Hydrogen Peroxide is a common chemical used in the bleaching and cleaning of fabrics. With its strong oxidizing properties, H2O2 helps completely remove organic impurities such as grease, dirt and stubborn stains.
- Applications in bleaching:
- H2O2 breaks down organic bonds on the fiber surface, cleaning and increasing the brightness of the fabric. This process also helps the fabric achieve uniformity, improving the ability to absorb color in the next dyeing stages.
- Cleaning and decolorization:
- H2O2 removes unwanted or excess colors on the fabric after the dyeing process, ensuring standard colors.
- Safety and environmental friendliness:
- When decomposing, H2O2 is converted into water and oxygen, leaving no toxic residue, in line with green production standards.
Other Apps
In addition to the textile dyeing industry, H2O2 is also widely used in:
- Wastewater treatment: Decompose organic matter and disinfect wastewater.
- Production of pesticides and pharmaceuticals: As a chemical intermediate.
- Military industry: As an oxidizer in rocket fuel.

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NaOH (Sodium Hydroxide)
Characteristic
- Common name: Sodium Hydroxide.
- Common contents: 32%, 45%, 50%.
- Nature:
- Strong alkalinity.
- Good whitening and cleaning ability.
- State: Liquid, opaque white.
- Packing:
- Packed in drums, cans, plastic tanks with capacities: 30kg, 250kg, 300kg, 10.000kg, 30.000kg.
- Origin: Vietnam.

Role in the textile dyeing industry
NaOH is an indispensable chemical in many stages of fabric production and dyeing. Main applications include:
- De-gluing and cooking the fabric:
During the preparation process, NaOH is used to remove the sizing (binder) and impurities from the fabric fibers. This helps to clean the fibers, increase the color absorption and improve the durability of the product. - Cotton treatment and de-impurity:
NaOH dissolves organic impurities and grease remaining on the fiber, creating a clean and uniform surface for the dyeing process. - Bleaching and solvent:
NaOH forms a strong alkaline solution during bleaching and dyeing, which improves color performance and minimizes color errors. - Applications in dyes:
As a solvent in vat dyes, helps to give clear and uniform color.
Outstanding benefits
- Increase processing efficiency and reduce production time.
- Ensure product quality meets international standards.
- Cost savings thanks to versatile cleaning and handling capabilities.
FeCl2 (Iron II Chloride)
Characteristic
- Science name: Iron (II) Chloride.
- Color: Yellow.
- Status: Fluid.
- Nature:
- In air, FeCl2 is easily oxidized to FeCl3 (Iron III Chloride).
- Packing:
- Cans, drums, tanks.
- Common contents: 25% - 30%.
- Origin: Vietnam.
Role in the textile dyeing industry
FeCl2 is mainly used in the textile dyeing industry, especially as a mordant:
- Effective color fixing agent:
- FeCl2 helps increase color fastness, ensuring even and long-lasting color on fabrics. It also reduces the rate of fading during washing and using the product.
- Wastewater treatment:
- In textile dyeing factories, FeCl2 is used to coagulate and remove organic impurities and excess dyes in wastewater. Combined with H2O2 in the Fenton reaction, FeCl2 helps effectively treat difficult-to-decompose pollutants.
Other Apps
- Additives in pesticide production:
- FeCl2 helps stabilize chemicals and increase the effectiveness of compounds in pesticides.
- Water treatment:
- FeCl2 is one of the preferred chemicals for removing impurities and heavy metals in industrial wastewater.
Importance of NaOH, FeCl2, and H2O2 in textile dyeing industry
These three chemicals not only directly support the production process but also bring many outstanding benefits, including:
- Increase production efficiency: Reduces processing time, improves efficiency of cleaning, bleaching and dyeing processes.
- Product quality assurance: Fabric products are durable, have uniform color and meet international standards.
- Environmental protection: Using FeCl2 and H2O2 in wastewater treatment helps to reduce pollution and ensure compliance with environmental regulations.
- Cost savings: NaOH, FeCl2 and H2O2 are all effective treatment agents, saving chemicals and energy in production.
Why should you choose Loc Thien as your chemical supplier?
Loc Thien is proud to be the leading supplier of industrial chemicals in Vietnam, with many outstanding advantages:
- Clear origin, guaranteed quality:
- Products such as NaOH, FeCl2 and H2O2 all meet international standards and are imported from reputable countries such as Thailand, Korea and China.
- In-depth technical support:
- Loc Thien's team of experienced experts is always ready to advise on optimal solutions, meeting customer needs in every stage of production.
- National warehouse system:
- With a wide warehouse system in large industrial parks, Loc Thien ensures fast delivery, on time and in quantity.
NaOH, FeCl2 and H2O2 are three essential chemicals in the textile dyeing industry, playing an important role from the preparation, fabric treatment, dyeing to wastewater treatment. The correct and effective use of these chemicals not only improves product quality but also helps businesses optimize costs and minimize environmental impact.
Please contact us immediately Loc Thien Investment and Development Company Limited for consulting and providing high quality chemicals for the textile dyeing industry.
- 📞 Hotline: (+84)979 891929
- (I.e. Email: locthien@locthien.vn
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We are committed to providing optimal chemical solutions, helping you achieve the highest satisfaction!



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