substitute of sodium silicate for CPB Reactive Dyeing

详情

Fixing Alkali for CPB Reactive Dyeing DA-GS**0

Fixing alkali DA-GS**0 is a cold pad batch dyeing agent for reactive dyes. It can efficient inhibit the aggregation of dyes with its solubilizing and dispersing property. Therefore the color spots and stains are reduced greatly. And because of its excellent penetrability, it can decrease the shade variation between inside and outside of the batching fabrics, also the selvedge and center variation. It is a good substitute for sodium silicate. For in traditional process, silicate will stain on rollers and then being transferred onto the fabrics form color spots.
 
Property
Appearance        white particle
pH value          ****2(1% solution)
Solubility         freely soluble in water 
 Characteristic
Excellent dispersion, suspension effect, can effectively inhibit the aggregation of dyes, so reduce color spots and stains.
Contribute to improve the stability of the working liquor.
Increase color depth of the CPB dyed fabrics
Good permeability, thus level dyeing and improving internal and external shade consistency.
Application
    Recommended dosage: ****0g/L, pick-up: *0%~*0%
Table 1. Dosage of Dyes and Chemicals
 
Materials Name
 Dosage(g/L)
 
Dyes
 ≤*0
 *0~*0
 ≥*0
 
Caustic Soda
 2.8
 4
 6
 
DA-GS**0
 *0
 *5
 *0
 
Note: the dosage in table 1 is with respect to the final liquor, so calculate again when separately dissolve the chemicals.
 
Application method: first, dissolve the dyes and chemicals respectively and thoroughly, then the dye and alkali liquor are mixed at a convenient volume ratio (generally 4:1) by metering pump just before padding.
For example, when the dosage of dye is *0g/L, caustic soda is 6g/L and the DA-GS**0 is *0g/L, the volume ratio of dye and alkali is 4:1. Prepare **0L padding liquor, then need *0L dye liquor (dye *0g/L) and *0L alkali liquor (caustic soda *0g/L+DA-GS**0 **0g/L)