I. विभावनम्

The textile printing and dyeing industry is a vital sector of China's economy, yet it is also a major consumer of water and a significant source of pollution. Statistics show that traditional dyeing processes consume approximately 200 liters of water per kilogram of fabric produced. The wastewater generated contains large quantities of dyes, auxiliaries, heavy metals, and organic solvents, making treatment difficult and costlyAgainst the backdrop of increasingly stringent environmental regulations and intensifying market competition, achieving a balance between efficient production and environmental protection has become a critical challenge for textile dyeing enterprises.

Polyacrylamide(PAM), as a water-soluble high-molecular polymer, has seen its applications in the textile printing and dyeing industry expand from traditional wastewater treatment to sizing, printing, dyeing, and finishing processes, thanks to its excellent flocculation, thickening, and adhesion properties.Environmental Technology Co., Ltd., a professional supplier of wastewater treatment chemicals specializing in polyacrylamide, polyaluminum chloride, and polyferric sulfate, is committed to providing efficient and environmentally friendly chemical solutions for the dyeing industry.

II पूर्वं विधानसापेक्षे पोलाक्रिलामिदेशकानि च प्रयोगाः

1. स्तरोत्तरकं संविधानं प्राप्तान्त्तरकं प्रतिष्ठापिता

During immersion and pad dyeing processes, dye migration on fabrics is often uneven, particularly during the heating stage when dyes tend to "migrate," causing side-to-center color differences, head-to-tail shade variations, or localized color spotsPolyacrylamide formas a weak cross-linking structure in the dye bath through its long molecular chains, slowing down the dye uptake rate while increasing bath viscosity, thereby inhibiting excessive dye migration.

In practical case, a facility struggling with left-right shadow variation when dying pure cotton with reactive dyes added 0.1% non-ionic PAM (molecular weight ~4 million) to the dying bath. - वात्वेशस्तरः प्रतिशतः स्तरः 1.2 mPa·s इत्यस्मा 2.5 mPa·s इत्यस्मै जायितुं रंगान्तरणं स्तरः 3-स्तरं 4.5 इत्यस्मा योग्यते स्तरं निष्कास्यते पु.

Moreover, polyacrylamide improves dye distribution on fibers, resulting in more uniform dying with reduced shade variation, while forming weak bonds with dye molecules to enhance color fastness and extend fabric service life.

2. As a Bleaching Stabilizer, Replacing Traditional Sodium Silicate

Traditional oxygen bleaching stabilizers predominantly use sodium silicate, which, despite its effectiveness, tends to form difficult-to-remove silicate scale on equipment and fabric surfaces, leading to silicate spots or stiff hand-feel. Polyacrylamide, as a non-silicon bleaching stabilizer, relies on its complexation and dispersion effects on metal ions to inhibit the ineffective decomposition of hydrogen peroxideIn particular, low-molecular-weight anionic PAM (molecular weight 500,000–1,000,000) used in combination with magnesium salts delivers stable fabric whiteness after bleaching and eliminating silicate scaling issues.

PAM as a bleaching stabilizer also effectively prevents the formation of oxidation spots on fabric surfaces, reducing product defect rates.

3. Anti-abrasion Protection in Rope Dyeing

In rope dyeing machine s (such as jet dyeing and airflow dyeing machines), repeated friction between fabric and the dyeing machine's inner wall and lifting rollers can easily cause abrasions and creasesPolyacrylamide formas an extremely thin hydrated lubricating film on fiber surfaces—distinct from oil-based agents, this film does not affect dye uptake but significantly reduces the dynamic friction coefficient. In rope dyeing processes, PAM forms a water film in the bath that acts as a fluid lubricant, reducing close contact between fabrics or between fabric and metal surfaces, effectively preventing surface abrasion.

III. Polyacrylamide इत्यस्य मुद्रणमा Dyeing Wastewater Treatment इत्यस्योऽनुप्रयोगाः

Printing and dyeing wastewater has a complex composition, containing various pollutants including disperse dyes, suspended dyes, vat dyes, and sulfur dyes, which are difficult to completely remove using traditional treatment methods. पोलिक्रिलामिडा, इत्येषः सहयोगं वैद्यमान् संविधानं प्रतिलिपितुं नैव प्रतिलिपितुं भागं मुद्रणात् चिद्रवाहं च

Flocculation and Sedimentation

सारणन्तरणं सामर्थ्यवृत्तयः 效果, PAM इत्यस्मै विभिन्नोपशुद्धारे पानीपारे निष्कास्यताम्. Studies show that PAM can achieve COD removal rates exceeding 64%, color removal rates over 96%, and turbidity removal rates up to 92% for printing and dyeing wastewater. When PAM is used in combination with in organic flocculants such as polyaluminum chloride (PAC), treatment performance is further enhanced, with organic matter removal rates improved significantly.

Polyacrylamide binds with suspended particles to form larger flocs, accelerating their sedimentation and achieving suspended solids removal. In printing and dyeing wastewater treatment, anionic PAM is primarily used for flocculation and sedimentation, while cationic PAM is mainly used for sludge dewatering—this is the industry's most standard combination.

2. Synergistic Effects with Inorganic Flocculants

The combination of PAM with inorganic coagulants such as PAC and polyferric sulfate creates a synergistic "inorganic + organic" treatment systemPAC/PAM composite flocculants generally achieve higher decoloration rates than PAC alone. Adding a small amount of PAM to PAC before introducing it in printing and dying wastewater can significantly increase COD and ammonia nitrogen removal rates by approximately 20%, while substantially reducing residual aluminum levels.

3. सारणमाध्वनिकाशं निमाननम्

Through charging neutralization and bridging effects, PAM compresses the floc structure of sludge, reducing moisture content to below 60% and reducing hazardous waste disposal volumes and treatment costs. Cationic polyacrylamide इत्येषः विशेषः मुद्रणं निर्माणं करोषणं पृष्ठभूमिका अपायुं चोपटलं निर्गतः पाणीर्णपणं च पृष्ठभूमि.

IV. सारणसंपूर्णस्थानं पोलिकालामिदेशकानुप्रयोगाः

As a sizing and finishing agent for fabric post-treatment, polyacrylamide forms a soft, anti-wrinkle, and mildew-resistant protective layer on fabric surfaces.

पाठ्यसञ्चिकापरिमाणः

Text size process, PAM can be mixed with starch, cellulose derivatives, and other materials to form sizing pasteपरिमाणाधिका यान्द्रियाः श्रीमोचका प्रतिमाणः, निम्नतं सर्जनाश्चिच्छेदनं चोपयोगं करोत्ता चिदन्दरूपं . PAM's water-soluble polymer chains allow viscosity adjustment according to concentration requirements, ensuring uniform paste application on yarn surfaces while minimizing residue and reducing energy and water consumption.

प्रगतः समाप्ति कार्याः

As a finishing agent, PAM imparts antistatic and flame-retardant properties to fabrics, enhancing textile safety and functionalityIts strong hygroscopicity also contributes to improved fabric comfort and durability.

V. Cost Control and Resource Conservation

The application of polyacrylamide in the printing and dyeing industry not only improves product quality and environmental performance but also delivers significant economic benefits:

• Reduced chemical costs: PAM can lower water treatment chemical costs by 15%–25% per ton while reducing dye waste by approximately 10%.

• Reduced water consumption: dying efficiency and improving wastewater treatment performance, PAM effectively reduces water consumption in dying processes.

• निम्रोत्तरं विद्युत्तमणुक्तः: PAM application improves sedimentation efficiency, shortens subsequent dewatering processing time, and reduces reliance on mechanical dewatering equipment and energy consumption.

VI. चयनान्तरणानिर्देशाः

पाठ्यश्चिका मुद्रणस्थायां पाठ्ययन्त्रोपणस्थाने विभिन्नायां अनुप्रयोग संविधानानिर्दे:

प्रयोगायां संविधायां परीक्षणं प्रथमं कर्त्यन्तां सुविधायां परिमाणातां प्रथम्, सेटिङ्कलनवायां दर्श्यतां सर्वोत्तमान् सू.

VII. Conclusion

The application of polyacrylamide in the textile printing and dyeing industry has expanded from a single water treatment function to multiple dimensions including process optimization, product quality improvement, cost control, and environmental protectiontextile materials तथा dyeing proces तन्त्रांशं सम्पूर्णपणं चाल्यते। PAM इत्यस्या अनुप्रयोगेऽपि विस्तारितायि.

Henan Secco Environmental Technology Co., Ltd. specializes in the R& D and supply of polyacrylamide, polyaluminum chloride, polyferric sulfate, and other wastewater treatment chemicals, committed to providing professional and efficient water treatment and process optimization solutions for textile dyeing enterprises. Choose Secco to help your enterprise achieve the win-win goal of green production and sustainable development