Polyester With Blue Light Whitening Agent, White Dye For Whitening Polyester Fabrics, Natural White Fabric Bleaching Agent For Polyester Textiles

Polyester whitening agent (blue light) / High whiteness / Good washability / Strong fluorescence

【Product features】

【Product uses】

【Usage method】

1. Low-temperature adsorption dip dyeing method:
   • Dosage: 0.3 - 0.7% (o.w.f)
   • Bath ratio: 1:10 - 20
   • Dyeing temperature: 95 - 100°C
   • Dyeing time: 30 - 40 minutes
   • pH value: 4.5 - 5.5 (adjusted with acetic acid)
   • Process flow: Add additives, acetic acid (adjust pH: 4.5 - 5.5), and whitening agent to the dye bath according to the formula, heat up to 95 - 100°C at a rate of 2 - 3°C per minute, keep the temperature constant for 30 - 40 minutes → cool down → wash with water → dehydrate and dry (80 - 100°C), and the whiteness can meet the user's requirements. If the user has a setting machine, after washing with water and dehydration, pre-drying (80 - 100°C), baking (170 - 175°C, 30 - 40 seconds), the whiteness effect will be better.
2. Pad dyeing method:
   • Dosage: 1.5 - 4 grams per liter
   • Process flow: Two dips and two rolls (pick-up rate 70%) → pre-drying (100°C) → baking and setting (175 - 180°C, 30 seconds).
3. High-temperature and high-pressure dip dyeing method:
   • Dosage: 0.2 - 0.5% (o.w.f)
   • Bath ratio: 1:10 - 20
   • Dyeing temperature: 120 - 130°C
   • Dyeing time: 30 - 60 minutes
   • pH value: 4.5 - 5.5 (adjusted with acetic acid)

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【Precautions】

【Packaging specification】