Combing ease

Finishing sprays and spritzes are sprayed on clean, dry hair and tested for drying time, stiffness, combing ease, flaking after combing and stickiness upon contact with moisture. Additionally, hair hoi ding properties are evaluated by measurements of the cud retention at various humidities. Standardized water-set cuds are sprayed with standard amounts of product under controlled circumstances. They are then dried, placed into vadous humidity levels, and the cud fall monitored at vadous time pedods. 

Cross-sectional shape, friction, density, and static charge are described as other important physical properties, and hair shine, combing ease, body, style retention, manageability, and hair conditioning are the primary important consumer assessments described in this chapter. A new section describing normal variation that exists in the cross-sectional shape of hair fibers and a few examples are given describing how these variations influence both the physical and the chemical behavior of the fibers. 

Table 8-28. How siagle-fiber properties relate to combing ease [3].

Existing tests to evaluate hair-combing ease, style retention, and flyaway hair or static charge may then be used to evaluate these different types of manageability. Furthermore, each type of manageability may be expressed in terms of a ratio of control/treatment values. 

Hair conditioning can be associated with almost any hair product sold in the marketplace because they all claim some benefit to the hair when used. Thus the term hair conditioner can be appHed to such products as rinses, hair dressings, setting lotions, and hair sprays. Conditioners are used to provide different effects to the hair primarily ease of combing, sheen, and soft feel. 

Polyquatemium-11 is the copolymer of A/-vinylpyrrohdinone and dimethyl-arninoethyl methacylate quatemized with dimethylsulfate (20). It is used widely but provides Htde hold to the hair. Its primary advantage is its abiUty to improve the ease of wet combing and control static while giving a light set hold. 

In 1888, Combes described condensation of 2,4-pentadione (acetylacetone) 5 with aniline 1 to provide enamine 6. Subsequent warming in sulfuric acid provided quinoline 7. An excellent study describing scope and limitations of the Combes reaction was published in 1928 by Roberts and Turner. The authors noted that the ease of... 

Rinse-on conditioner more effective on improving the ease of wet combing than a complex not in the form of a liquid crystal... 

Provide shiny, smooth, manageable hair, ease to comb, easy to style, long holding power... 

Easy to wash out with SLES-based shampoos provide softness, shine, ease of combing, flyaway control, and manageability rinse-off conditioner... 

Two-in-one shampoos provide conditioning benefits, such as softness, ease of combing, and manageability, in addition to basic cleaning. These products, which were developed in the late 1980s, provide significantly more conditioning than... 

U.S. 6592856 (2003) Giles et al. (Unilever) Combination of conditioning agents emulsified silicones, cationic polymers, fatty acid polyesters of cyclic polyols and/or sugar derivatives Improved hair softness and ease of combings, especially for damaged hair, through environmental or harsh mechanical or chemical treatments... 

Selectively enhances the wet feel and ease of wet comb, while reducing the ease of dry combing to allow an easy styhng... 

As described earlier, conditioning is a broad term for several desirable properties a conditioner can offer, including ease of wet and dry combing, shine, softness, manageability, and flyaway reduction. The assessment of these desirable conditioner properties is discussed in the following sections. 

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