If dry pigments are mixed, do it inside a glove box (a box with a glass or plexiglas top and holes in the sides for arms or inside a laboratory-type fume hood.Ħ. If possible, do not mix highly toxic pigments such as lead white or cadmium colors.ĥ. Never mix your own chrome yellow, zinc yellow, chrome green, molybdate orange, or any other pigments that are known human carcinogens. Avoid mixing dry pigments whenever possible. Children under the age of 12 shouldn't use toxic pigments.Ĥ. This is especially important because the name that appears on label of the color may or may not truly represent the pigments present.Ģ. The long-term hazards of the modern synthetic organic pigments have not been well studied.ġ. Chromate pigments (chrome yellow and zinc yellow) may cause skin ulceration and allergic skin reactions.ĥ. In addition, lamp black and carbon black may contain impurities that can cause skin cancer.Ĥ. Some of the inorganic pigments, in particular cadmium pigments, chrome yellow, and zinc yellow (zinc chromate) may cause lung cancer if inhaled. (See theh CSA's data sheet Art Painting for more information)ģ. Other inorganic pigments may also be hazardous, including pigments based on cobalt, cadmium, and manganese. Lead pigments can cause anemia, gastrointestinal problems, peripheral nerve damage (and brain damage in children), kidney damage, and reproductive system damage. The classic example of a toxic inorganic pigment in printmaking is lead chromate (chrome yellow). For normal printing with prepared inks, the main hazard is accidental ingestion of pigments due to eating, drinking, or smoking while working, or inadvertent hand-to-mouth contact.Ģ. Pigment poisoning can occur if pigments are inhaled or ingested. There are two types of pigments: inorganic pigments and organic pigments.ġ. Pigments are the colorants used in intaglio printing inks. An alternative is to place the oil-soaked rags in a pail of water. Place oil-soaked rags in self-closing disposal cans and remove them from the studio each day. Take normal fire prevention measures by not smoking or using open flames in the work area. Do not use an open flame to heat linseed oil, linseed oil varnishes, or burnt plate oil. Children under the age of 12 should not do intaglio because of the need for solvents.Ĥ. Obtain the material safety data sheets (MSDSs) on all products used.ģ. Oil vehicles are flammable when heated, and rags soaked in these may ignite by spontaneous combustion.ġ. While linseed oil is not considered a hazard by skin contact or inhalation, ingestion of large amounts of some treated linseed oils might be hazardous due to presence of small amounts of toxic heavy metals. Oil-based inks contain treated linseed oils. There can be additional hazardous binders or preservatives.ġ. Intaglio inks consist of pigments suspended in linseed oil as a vehicle. This article is an excerpt from our new data sheet: Lithography, Intaglio, and Relief Printing. These depressed areas can be produced by a variety of techniques, including acid etching, drypoint, engraving, and mezzotint. Intaglio is a printmaking process in which ink is pressed into depressed areas of the plate and then transferred to paper. The following article will introduce both hazards and safety precautions recommended for intaglio.
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