Description: caustic soda used in textile industry
Appearance: white pearls, prills or pellets
M.F.:NaOH
CAS number: 1310-73-2
HS code: 28151100
UN number: 1823
PACKAGE :25kg bag; 25kg plastic drum;1.2tons jumbo bag; customized bag.
Hazardous: yes, it is class 8
In modern wet-processing textile mills, achieving consistent color depth, optimal fabric strength, and uniform finishes depends directly on the chemical purity of basic reagents. High-purity sodium hydroxide (NaOH ≥ 99%) plays a critical role in fundamental fabric preparation techniques, including scouring, bleaching, and mercerization.
When reliable caustic soda used in textile industry workflows is introduced during pre-treatment, it thoroughly removes natural waxes, pectin, and seed coat fragments from raw cotton fibers. This intensive cleaning process opens up the cellulose structure, significantly improving moisture absorbency and ensuring subsequent dyeing and printing stages deliver vibrant, long-lasting colors without streakiness or blotching.-


|
Processing Stage |
Primary Chemical Function & Operational Benefit |
|
Cotton Mercerization & Scouring |
Swells cellulose fibers, increases luster, tensile strength, and dye uptake |
Because solid sodium hydroxide is extremely hygroscopic, absorbing ambient moisture and carbon dioxide rapidly, preserving chemical activity during transit is essential for textile chemical suppliers. Our export-grade packaging features an engineered multi-layer protection system:
1. Heat-Sealed Polyethylene (PE) Inner Liner: An impermeable internal film barrier that protects the alkali flakes or pearls from ocean air, humidity, and atmospheric contamination during shipping.
2. Heavy-Duty Polypropylene (PP) Woven Outer Bag: A tough external shell that offers high tensile strength and tear resistance, preventing bag ruptures during container loading and warehouse stacking.
3. Ergonomic 25kg Weight Standard: Sized for convenient manual handling and precise batching, allowing plant operators to dose chemical preparation tanks with exact measurements and zero waste.
Selecting top-tier caustic soda used in textile industry applications delivers multi-faceted performance benefits across various fabric processing lines:
● Mercerization Performance: Causes natural cotton fibers to swell permanently, converting them from flat ribbon shapes to smooth cylindrical structures that reflect light for superior fabric luster.
● Optimized Dye Affinity: Increases the availability of reactive hydroxyl groups within the cellulose lattice, allowing reactive and direct dyes to bond deeply with lower dyestuff consumption.
● Scouring and Pectin Removal: Emulsifies natural fats and dissolves non-cellulosic impurities, preparing greige fabric for seamless bleaching and uniform color absorption.
● Synthetic Fiber Treatment: Used in controlled weight-reduction treatments for polyester fabrics to create silk-like hand feel and improve draping qualities.
● Equipment Cleaning & Machinery Maintenance: Serves as a heavy-duty industrial degreaser for removing dye residues, sizing agents, and synthetic lubricants from stainless steel dyeing vats.
Partnering directly with a dedicated chlor-alkali manufacturer gives textile processors and chemical distributors direct access to factory pricing, stable supply scheduling, and full regulatory transparency. Every export batch is thoroughly tested prior to dispatch to ensure strict adherence to international industrial chemical standards.
All shipments are accompanied by complete export documentation, including a lot-specific Certificate of Analysis (COA), Safety Data Sheets (SDS) compliant with GHS regulations, and UN-certified packaging documentation for Class 8 corrosive solids (UN 1823). Contact our international sales department today to request technical datasheets, order testing samples, or secure bulk container shipments tailored to your textile mill requirements.