Spray stickiness

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. 

The male Mediterranean fmit fly Ceratitis capitata is similarly attracted to the terpenoid a-copaene [3856-25-5] (176) from the oil oiA.ngelica archangelica and this and the parakairomone tert-huty 2-methyl-4-chlorocyclohexanoate (trimedlure [12002-53-8]) are very extensively employed in monitoring for infestations of this destmctive pest. The female apple maggot fly Jiagoktispomonella is attracted to the apple volatile butyl hexanoate, which is used to bait sticky red spheres to monitor populations and time spray treatments. 

Nevertheless, stickiness of the final composition made stamping difficult. This problem was mitigated by spraying a die lubricant of 6% aqueous sodium chloride on the chilled die faces. 

A unique problem in pear trees is the pear psylla, a sapsucking insect that deposits sticky honeydew, which supports the growth of black sooty mold. Spray psylla with Insecticidal soap. The next season, spray with horticultural oil In early spring and again when buds show green. 

Lactose glass. When a lactose solution is dried rapidly, viscosity increases so quickly that crystallization is impossible. A noncrystalline form is produced containing a- and /J-forms in the ratio at which they exist in solution. Lactose in spray-dried milk exists as a concentrated syrup or amorphous glass which is stable if protected from air, but is very hygroscopic and absorbs water rapidly from the atmosphere, becoming sticky. 

Extracts dried on to a water-soluble base are useful in the preparation of powdered drinks. Soft extracts tend to contain about 70% solid matter and can be mixed into a slun y with the substrate and spray-dried or dried in a vacuum oven. The substrate is usually essential to prevent the dried extract from reabsorbing moisture and turning back into a hard or sticky mass. The dried extracts can be dry-blended with other ingredients in a powdered drink formulation. 

Napalm B was developed by Dow Chemical during the Vietnam War as a replacement for the original napalm jelly in firebombs. It is stickier and burns much hotter than the original filler. The Dow formula used 25 percent gasoline, 25 percent benzine, and 50 percent polystyrene. Polystyrene is a common plastic used for such diverse items as toys, styrofoam cups, and packing-filler "peanuts." As anyone who has tried to spray-paint a styrofoam cooler knows, polystyrene dissolves into a sticky mush when it comes in contact with hydrocarbons such as paint or gasoline. It is this quality of polystyrene that makes napalm B so effective for molotov cocktails. 

Crude experiments were performed in the laboratory with substances unlikely to show significant weight change by adsorption of water or oxygen and sufficiently volatile for loss to be recorded conveniently on an ordinary balance. Petri dishes (41 sq. cm. area) were used to contain the substances, mostly liquids and used in the pure state. Two solids were included p-dichlorobenzene and naphthalene. These were layered in coarse powder form, and the surface was sprayed with a solution of low molecular weight polyisobutene in petroleum ether until it was sticky enough to prevent blowing of the powder in the wind it was intended to use. 

Crude soybean oil has limited uses as sprays. Spray nozzles are in danger of clogging by phospholipids, which also leave repeatedly sprayed surfaces sticky. Generally, once-refined oil (degummed, alkali-neutralized,... 

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