Acid Reduction Cleaning Powder HN-200

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Acid Reduction Cleaning Powder HN-200

Acid Reduction Cleaning Powder HN200 is a sulfinic acid derivative used for reduction cleaning of polyester and polyester/cotton blended fabrics, yarns, and after disperse dyeing to remove unfixed dyes from the fabric surface. It can be used for reduction cleaning without draining the dye bath after dyeing, shortening the process flow and achieving good color fastness improvement.

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Appearance

White powder

pH value

9.5–10.5 (1% aqueous solution)

Ionicity

Anionic

Solubility

Soluble in water in any ratio

Stability

Do not contact with oxidizers or acids

1. Reduces process steps
Excellent reduction cleaning effect under acidic conditions. Can be used directly after dyeing without draining the bath, saving water and eliminating the need for acid neutralization after alkaline reduction cleaning.

2. Effectively removes unfixed dyes from the fabric surface after dyeing
Improves various color fastness and brightness of dyed fabrics without affecting shade.

3. Saves production costs
Compared to traditional alkaline reduction cleaning agents, it is more economical and environmentally friendly, saving a significant amount of chemicals, energy, time, water, electricity, and steam, while also reducing salt and pigment content in wastewater.

4. Reduces Chemical Oxygen Demand (COD) in wastewater.

5. Safe to use
Acidic reduction cleaning agents do not produce spontaneous combustion or irritating odors when in contact with water (unlike sodium hydrosulfite), contributing to better environmental protection and cleaner production.

Mainly used for reduction cleaning of polyester and its blended fabrics, yarns, and after disperse dyeing.

(1) Exhaustion Method (Standard Fastness):

Acidic Reduction Cleaning Powder HN200

1.0–4.0 g/L (dosage increases with depth of shade)

pH Value

Adjust to 4–4.5

Bath Ratio

1:5–10

Temperature/Time

90°C × 20–30 minutes, then rinse


(2) Exhaustion Method for High Fastness (e.g., Red, White, etc.)

Step 1:

Sodium Hydrosulfite

2.0–3.0 g/L (dosage increases with depth of shade)

Soda Ash or Caustic Soda

2.0–3.0 g/L (dosage increases with depth of shade)

Bath Ratio

1:5–10

Temperature/Time

85–95°C × 20–30 minutes, then rinse

Step 2:

Acidic Reduction Cleaning Powder HN200

1.0–4.0 g/L (dosage increases with depth of shade)

pH Value

Adjust to 4–4.5

Bath Ratio

1:5–10

Temperature/Time

90°C × 20–30 minutes, then rinse
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Jiangyin Huanan New Material Technology Co., Ltd. established in 1984 and located in Jiangyin City, Jiangsu Province, China, is a leading manufacturer and supplier of high-performance textile printing and dyeing auxiliaries. The company is primarily engaged in the research, development, production, and sales of pre-treatment auxiliaries, post-treatment auxiliaries, and dyeing auxiliaries. The company has two production plants with an annual production capacity of 60,000 tons. Our products include Moisture-Wicking Finishing Agents, High-Concentration Repair Agents (Liquid), Low-Temperature Environmentally Friendly Carriers, Various Types of Silicone Oil, Silicone Softeners, Antistatic Agents (Cationic & Non-Ionic), Color-Fixing Agents, Stiffening Agents, Down-Proof and Windproof Agents, and Dry and Wet Rubbing Fastness Enhancers.
We take pride in offering eco-friendly formulations, including APEO-free and formaldehyde-free options, to help our customers comply with international environmental regulations such as OEKO-TEX, ISO 14001, and ISO 45001. Jiangyin Huanan delivers quality, consistency, and value. We are committed to building long-term partnerships based on trust, innovation, and mutual growth, serving customers.

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