Pretreatment — Process Challenge

Estabilizantes de Peróxido e Quelantes para Alvejamento Têxtil Uniforme

Íons metálicos traço catalisam a decomposição descontrolada do peróxido, gerando brancura irregular e danos à fibra na forma de furos
Updated Jun 2026
Abordagem de solução

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 (6)
Hydrogen Peroxide (Leaching / Process Oxidant)
CAS 7722-84-1
Polímeros e Resinas
Bleaching oxidant
2015 (HYDROGEN PEROXIDE, AQUEOUS SOLUTION, STABILIZED, WITH MORE THAN 60% HYDROGEN PEROXIDE) · Class
the bleaching oxidant itself; uniformity depends on controlling its decomposition
Ponto de fusão:0 °C   Ponto de ebulição:150 °C at 760 mmHg   Densidade:1.11 at 20 °C
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DTPA (Diethylenetriaminepentaacetic Acid)
CAS 67-43-6
Aminas e Amidas
High-performance chelant for iron and copper
sequesters Fe/Cu/Mn that catalyze radical decomposition of peroxide, the root cause of pinholes and weak spots
Physical Description: White to off-white solid   Ponto de ebulição:Decomposes   Ponto de fusão:219-220 ºC
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Ethylenediaminetetraacetic Acid
CAS 60-00-4
Aminas e Amidas
Chelant for metal ion sequestration
chelates Ca/Mg/heavy metals for controlled, even peroxide decomposition
Ponto de fusão:237 °C   Densidade:0.86 at 20 °C   Solubility: 1000000 mg/L at 25 °C
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Sodium Metasilicate
CAS 6834-92-0
Ácidos e Sais
Peroxide stabilizer and detergent builder
1759 (SODIUM SILICATE) · Class
classic peroxide stabilizer/buffer that meters out decomposition rate across the bath
Ponto de fusão:1089 °C   Ponto de ebulição:BOILING POINT: 100 °C -6H20 /NONAHYDRATE/   Densidade:1.1 to 1.7 at 20 °C
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Magnesium Sulfate, Anhydrous USP Powder
CAS 7487-88-9
Ácidos e Sais
Peroxide stabilizer in bleach baths
magnesium ions stabilize the peroxide system and protect cellulose from oxidative attack
Ponto de fusão:1124 °C (decomposition)   Densidade:2.66 g/cu cm   Solubility: 710 mg/mL
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2-Hydroxyphosphonocarboxylic Acid (HPAA)
CAS 23783-26-8
Ésteres de Fosfato e Derivados
Quelação / Sequestro
Oxidant-stable phosphonocarboxylate chelant purpose-built for this exact problem: it sequesters the catalytic Fe/Mn/Cu that drive uncontrolled H2O2 decomposition, and its resistance to oxidation lets it survive in the peroxide bath itself. Functions as a genuine peroxide bleach stabilizer at the alkaline pH (~10.5-11) of textile bleaching, delivering even whiteness while preventing radical-driven
Physical Description: Brown liquid. Slight acrid odor
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