Why It Matters
Size (starch/PVA) not fully removed from greige goods before dyeing, causing resist marks and uneven dye uptake
Solution Approach
Size (starch/PVA) not fully removed from greige goods before dyeing, causing resist marks and uneven dye uptake RawSource supplies the base chemicals that go into these programs. We can help with product selection, grade matching, and sourcing from multiple origins for supply security.
Typical Processing Workflow
1
Substrate & Process Assessment
Identify the fiber and process stage (pretreatment, dyeing, finishing) and the performance, hand, and compliance targets.
2
Auxiliary Selection
Match surfactants, wetting and dispersing agents, softeners, fixatives, or pH and sequestering agents to the substrate and bath chemistry.
3
Lab Dip & Dosing
Confirm dose and sequence on a lab dip or pad trial, checking levelness, fastness, hand, and bath stability.
4
Production Validation
Verify reproducibility, fastness, and effluent compliance at scale, and set the recipe and packaging for production.
Recommended Chemistries (4)
Amylase Enzyme
CAS 9000-90-2
Specialty Additives
Starch hydrolysis enzyme
alpha-amylase hydrolyzes insoluble starch size into short soluble sugars that simply rinse off the fabric
Full Details
Sodium Persulfate
CAS 7775-27-1
Specialty Additives
Oxidative desizing for PVA sizes
1505 (SODIUM PERSULFATE) · Class strong oxidizer that depolymerizes PVA and starch sizes by radical chain scission when enzymes alone won't shift them
Physical Description: Sodium persulfate appears as a white crystallin… Solubility: Solubility in water, g/100ml at 20 °C: 55.6 Density: 1.1 g/cm3
Full Details
Hydrogen Peroxide (Leaching / Process Oxidant)
CAS 7722-84-1
Polymers & Resins
Bleaching oxidant
2015 (HYDROGEN PEROXIDE, AQUEOUS SOLUTION, STABILIZED, WITH MORE THAN 60% HYDROGEN PEROXIDE) · Class peroxide oxidant that breaks down size films in combined desize-scour-bleach baths
Melting Point: 0 °C Boiling Point: 150 °C at 760 mmHg Density: 1.11 at 20 °C
Full Details
Acetic Acid
CAS 64-19-7
Acids & Salts
pH adjustment for enzyme activity
2789 (ACETIC ACID, GLACIAL) · Class trims the desize bath to ~pH 6-7, the activity optimum for amylase
Melting Point: 17 °C Boiling Point: 118 °C at 760 mmHg Density: 1.051 at 20 °C
Full Details
Related Product Families
● Available
Scouring & Bleaching Chemicals
Alkalis, chelants, surfactants, and peroxide stabilizers for greige goods preparation
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Disperse Dye Auxiliaries
Carriers, dispersants, levelling agents, and solvents for polyester and synthetic fiber dyeing
DispersingLevellingSolvency
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Textile Enzymes
Amylase, cellulase, and catalase enzymes for desizing, biopolishing, and peroxide removal
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