Plastics printing

Zinc is also used extensively to galvanize other metals such as iron to prevent corrosion. Zinc oxide is a unique and very useful material for modern civilization. It is widely used in the manufacture of paints, rubber products, cosmetics, pharmaceuticals, floor coverings, plastics, printing inks, soap, storage batteries, textiles, electrical equipment, and other products. Lithopone, a mixture of zinc sulfide and barium sulfate, is an important pigment. 

The aimual worldwide production of carbon blacks, which iaclude a large variety of carbonaceous products, was estimated to be around six million metric tons ia 1994. More than 90% of this pigment is consumed by the mbber iadustries, ia particular, by the tire iadustry as a reinforcing agent. The rest (- 500, 000 t) is used for coloring plastics, printing inks, and paints. Particle size of carbon blacks varies from 5 to 500 p.m and can be controlled by the process conditions and feedstock (see Carbon, carbon black). 

P.V.23, also referred to as Carbazole Violet, is a universally useful product. Its color, a bluish violet shade, is not accessible with other Pigments. P.V.23 is used in almost all media which are typically colored with pigments. The list of suitable systems ranges from coatings and paints to plastics, printing inks, and other special-purpose media. P.V.23 is entirely fast to many organic solvents. At standardized conditions (Sec. 1.6.2.1), it is fast to alcohols, esters, and aliphatic hydrocarbons as well as to plasticizers such as dibutyl and dioctyl phthalate. Other solvents, such as ketones, are colored slightly (step 4). 

Uses. In the rubber, plastic, printing, and paint industries as a reinforcing agent and a pigment... 

This method is used for curing coatings and inks on plastic cups, tubs, tubes, or metal cans. The parts are placed on mandrels, which are attached to a rotating device. This device moves them through the individual stations feed, pretreat (most frequently corona or flame, for plastics), printing, curing, and take-off. The printing is done by dry offset (see Section 7.5.3). 

Hyde, T. J., The Epoxy Resin PMDA Glycol System, ACS Division of Paint, Plastics, Printing Ink Chemistry, Preprints, vol. 19, no. 2, September 1959. 

Ca. 90% of the carbon black produced is utilized as an additive in the rubber industry, ca. 70% being utilized in vehicle tires, ca. 20% in other rubber products and ca. 10% in plastics, printing ink and paint manufacture. 

Use Exceptionally resistant surface coatings, such as heat-resistant and fumeproof enamels vinyl and plastic printing fluorescent coatings clear and pigmented coatings on metals. 

Plasticized printing Plastic designs printed onto fabric can contain very high levels of phthalates— chemicals that have a hormonal effect and are potentially carcinogenic. Children who chew and suck their clothing may ingest these compounds. 

MAJOR USES Used in the manufacture of azo dyes, rubber and plastic, printing ink, textiles, plastics and crayons used as a curing agent for polyurethane elastomers, isocyanate containing polymers and solid urethane plastics used as an intermediate for the detection of gold and production of pigments. 

Uses Pigment in automotive finishes/refinishes, coil coatings, heat-re-sist. paints, powd. coatings, plastics, printing inks Features Will not dec. into chromium or antimony components high gloss easy to disperse exc. durability, colorfastness to light and resist, to weather, heat, chems. 

Uses Pigment in paints, plastics, printing inks... 

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