Fabrics Wetting agents

Polyester fabrics usually have a low wet pick-up during finishing due to their hydrophobicity, which makes it more difficult to functionalize the surface of polyester fabrics. Wetting agents need to be added to increase the wet pick-up. Ammonia stearate was successfully used to increase the hydrophilicity of a polyester knitted fabric (Figure 1.5) the contact angle dropped from 115° to 0° (De Smet and Vanneste, 2012). 

Alkylaryl sulfonates (ASs) have the properties of coupling agents, water-in-oU emulsifiers, fabric wetting agents, scouring agents, and degreasers. While LAs can work, amine salts of alkylbenzenesulfonates perform much better. See Table 3 for an example formula. 

Uses Bleach bath additive iron sequestrant for fabrics wetting agent, detergent, peroxide stabilizer In fabric dyebaths Features Exc. caustic stability Arodet L-70 M [Arol Chem. Prods.)... 

Uses Acid stripping agent used in desizing starch and/or starch-rich sized gar-ments/fabrics wetting agent, lubricant for desize/wash, esp, on indigo-dyed gar-ments/fabrics... 

Antlblaze 19. Antiblaze 19 (Mobil), a flame retardant for polyester fibers (134), is a nontoxic mixture of cycHc phosphonate esters. Antiblaze 19 is 100% active, whereas Antiblaze 19T is a 93% active, low viscosity formulation for textile use. Both are miscible with water and are compatible with wetting agents, thickeners, buffers, and most disperse dye formulations. Antiblaze 19 or 19T can be diffused into 100% polyester fabrics by the Thermosol process for disperse dyeing and printing. This requires heating at 170—220°C for 30—60 s. 

An AOX-free alternative [316] is impregnation with 4 g/1 hydrogen peroxide, 8 g/1 urea and 2 g/1 nonionic wetting agent, then treatment for 60 minutes at 95 °C, pH 8 and 20 1 liquor ratio [316]. This results in a bleached fabric with excellent wettability and without serious fibre degradation. The urea interacts with hydrogen peroxide to form an unstable complex, which then decomposes to form hydroxyl and perhydroxyl radicals, according to Scheme 10.28 [316]. Urea exhibits undesirable environmental characteristics in some respects, however. 

The chemistry of these product types has been described previously (section 10.6.1). The anionic polyelectrolyte helps to stabilise the colloidal solution of the naphtholate, through a mechanism similar to that already described. Where the protective colloid itself does not give adequate wetting of the fabric a suitable wetting agent, which in batchwise dyeing must function well in the cold, should be added the alkylnaphthalenesulphonate types are suitable. 

Oxidative rapid desizing and wetting agent for woven fabrics made from cellulosic fibers and their blends with synthetic fibers. 

In cold pad-batch dyeing of cotton knit goods with REMAZOL dyes, EMIGEN DPR-A is used to increase the pick-up in combination with the wetting agent and to prevent the uneven distribution of the dyes solution during the reaction time. The appearance of the fabric is generally improved. 

BURCOWET 100 is a nonionic wetting agent that is non-yellowing and offers high penetration for narrow fabrics finishing. 

When used as a wetting agent, 1-2 pounds of CNC SOL 72-N per 100 gallons will insure thorough wetting of most fabrics that contain starch, wax or other impurities. It is an excellent dye dispersant for acid dye baths, direct colors and vats. Specifications ... 

For maximum water repellency, fabrics which are to be processed with DOW CORNING 75 emulsion should be free of all wetting agents, sizes, drying assistants and other chemical additives. The fabric should have a pH of 5 to 7 for optimum results. 

Nonionic wetting agent/detergent for cellulosic and synthetic fibers and fabrics. 

Is a high speed wetting agent with moderately low foaming properties. It is used as a penetrant for yarn and other fabrics in atmospheric and pressure dyeing systems, and in resin pad-bath applications. TRYCOL 5950 is also an intermediate in the synthesis of anionic surfactants. 

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