Finishing sprays

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. 

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. 

Curalan DF is a fungicide produced by BASF Corp. for the purpose of treating such diseases as brown patch and fusarium patch on turf. Curalan DF was applied to turf in California, Florida, and Pennsylvania at a rate of 5.6 lb of active ingredient in 80 gallons of finished spray solution per acre using a tractor-mounted boom sprayer. Four applications were made 14 days apart. These conditions were selected to reflect the maximum level of dislodgeable residue when the product is typically used in agricultural practice. 

Commercial blood-albumin spreader was used as the emulsifying agent at the rate of 4 ounces per 100 gallons of finished spray mixture (24) The emulsion was applied to the fruit by means of a commercially available air-pressure paint spray gun (Type MBC, made by the De Vilbiss Co., Toledo, Ohio). The paint spray gun was operated with compressed air at a pressure of 30 pounds per square inch. The fruit were placed singly on a small turntable, so that the center of the fruit was at the same height as the face of the nozzle of the spray gun and 30 inches in front of it. The turntable was set at 30 r.p.m. Each fruit received a uniform exposure of four revolutions to the spray stream in accord with the following routine ... 

You need to spray only one acre and yonr eqnipment is calibrated to spray 60 gallons per acre. The label calls for 2 ponnds of formnlation per 100 gallons of water. How many pounds of formnlation shonld be added to the tank to make 60 gallons of finished spray ... 

This device causes a fixed rate of pesticide to mix with the water flowing through the hose to which it is attached. The mixture is expelled through a high-volume nozzle. These sprayers usually hold no more than one quart (one liter) of concentrated pesticide, but because the concentrate mixes with the water, they may deliver 20 gallons or more of finished spray solution before refilling. Figure 8.3 depicts a hose-end sprayer used for small pest control projects. 

Thus, special requirements of the moulded front are (a) to be load bearing, (b) to be receptive to finishing sprays, (c) to have good impact resistance, (d) to be economical. High-impact polystyrene (HIPS) is an easily moulded, cheap material which has the necessary impact strength, takes paint finishes well, and if moulded by SF or SM will have thick sections giving the required stiffness to support loads. ABS also satisfies these requirements and was a serious contender but HIPS was favoured on cost grounds (HIPS = 0.586 per kg, ABS = 1.310 per kg). 

Alternate use permitted. Automobile finishing spray booths or enclosures, otherwise installed and maintained in full conformity with this section, may alternately be used for drying with portable electrical infrared drying apparatus when conforming with the following ... 

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