Smudge resistance

A disadvantage of this method is that a subsequent processing stage, i.e., the irradiation with UV Ught, is required. Also, the formulation of the composition becomes more complicated as it is 

It has been found that inks consisting of a dispersion of particles of an ionically modified polymer which are loaded with dye exhibit improved properties (64). 

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Although the black inks are predominantly based on mineral oil, colors are almost entirely formulated with a soya bean oil vehicle. The superior printabHity of colors and economics of blacks guide the selection of product types by the market. Recently developed low mb blacks offer smudge-resistant print. Their share of the market is growing rapidly. The low mb characteristics of these inks are produced through the use of low stmcture carbon black. The addition of resin further enhances the smudge resistance but imposes a premium price. 

Probably the most commonly referred to compound which accounts for a form of passive resistance of a chemical nature is protocatechuic acid (6.16) which is found in yellow and red skinned onions and prevents the germination of spores of the onion smudge fungus, Colletotrichum circinans. Thus, protocatechuic acid serves as a barrier to infection prior to penetration. Once penetration occurs the compound is ineffective. 

The heat seemed sudden to have intensified. My legs automatical took me back to the Land Rover. I resisted the inge to get in and drive away. Instead, putting it between me and the house, I continued with ny call As I waited for the police to answer I stared at the for green smudge ofthe woods Id just come fiom... 

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