Aerosol finishing sprays

Finishing Sprays. Table 3 gives typical aerosol and pump finishing spray formulations. 

Ma.nufa.cture. Finishing sprays are easily prepared as simple solutions of the polymers, neutralizers, plasticizers, fragrance, etc, in ethanol. If water is in the formulation, it must be added last. The aerosol products are filled by the methods described for styling mousses. 

Acrylic acid derivatives treated with heparin are used to coat surfaces of clinical equipment. Acrylic acid is also used as a copolymer component in aerosol hair spray, in plastics, in molding powder for signs, in paint formulations, in leather finishing, in paper coatings, and in latex applications to prevent premature coagulation. It is also used in the production of hydrogels used for contact lenses. 

Fluorinated polymers can be used not only in membrane layers but also as coatings, as Table 10.8 suggests. Fluorocarbon finishes may also be applied to outer layers in order to aid chemical repellency while maintaining fabric breathability. Such finishes may also have a positive effect in increasing resistance to aerosols, and an evaluation of aerosol spray penetrability of finished and unfinished woven, and nonwoven fabrics was carried out some years ago. The results indicated that the presence of a fluorocarbon finish increases the resistance to aerosol penetration. The woven fabrics... 

Uses Emollient, penetrant, w/o emulsifier, moisturizer, softener, stabilizer for cosmetics, creams, makeup, hair dressing, pharmaceuticals, aerosols, baby prods., textile finishes wetting agent, dispersant for pigmented prods. plasticizer for hair sprays... 

Hair sprays are applied to dry hair after styling has been finished. They are intended to give styling a hold and to prevent change of style by wind and humidity. Like setting lotions hair sprays contain polymers, such as copolymers of vinylpyrrolidone and vinyl acetate, copolymers of vinyl acetate and crotonic acid neutralized with alkanolamines, e. g., 2-amino-2-methyl-l,3-propandiol, small amounts of plasticizers, ->cetyl alcohol, silicones, disolved in ethanol or isopropanol without or with only a small amount of water, because more than 10-20% of water destroy the hair style. The polymer solution is filled up with propellants, such as propane and butane, in an aerosol can. In the hair care market, hair sprays rank second in sales only to shampoos. 

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