![]() Water soluble plate coatings, which are less toxic and less polluting.Ī light source produced by the passing of electric current between two electrodes used in the production of plates in photolithography. The hand application of transparent water colors onto a printed picture through the use of stencils. ![]() The white area at the margins of text or illustrations used to form a foldout.Ī printing process that uses the recessed areas of the plate ideal for graded and even tones. ![]() Paper with a rough, sized surface used for book and cover stock.Īn antioxidant agent used to prevent inks from skinning over in the can. In lithography, a plate manufactured with a barrier of aluminum oxide, which prevents chemical reactions that break down the plate it provides optimum press performance. Oil-based solvent (quick drying) used in the preparation process of dyes and inks.Ī technique of paper making which hardens the surface by passing the paper through a bath of animal glue or gelatin. In "web-fed" printing (printing on rolls of paper as opposed to single sheets), an angle bar is a metal bar that is used to turn paper between two components of the press. The amberlith area appears black to the camera, and prints clear on the resulting film. Red-orange acetate used for masking mechanicals when photographing for plates. The measured length (in points) of the lowercase alphabet of a certain size and series of type. The blank space between columns of type, sometimes also called a gutter or column margin. A pigment used in carbon black inks and varnishes to improve luster. The position of elements on a page in relation to a referenced horizontal or vertical line.Īlso called reflex blue. Fourteen agate lines = one column inch.Ī compressed air tool that dispenses a fine mist of paint or ink used in illustration and photo retouching.Ī hand operated printing press made of iron.Ī wood pulp paper with an antique finish used for pages of photo albums.Ī coated paper used in photography the coating is made of albumen (egg whites) and ammonium chloride.Ī surface plate used in the lithography process it has a photosensitive coating. In newspaper classifieds, a measurement denoting 1/4 inch depth by one column width. This refers to a manual process whereby an air stream is blown onto paper sheets to create a riffling effect that separates the sheets as they are fed to the printing press.Ī type size of 5 1/2 points. In photographic reproduction, the primary colors of red, green and blue which are mixed to form all other colors. Light exposure that affects chemical changes in paper. ![]() Bichromated solutions employed in photoengraving as sensitizers provide acid resist through the action of light on sensitized surface.Ī water-soluble polymer used in paints to make them dry both tough and flexible. The ability of a material to take up moisture.Ī type of paper folding in which each fold runs in the opposite direction to the previous fold creating a pleated or accordion effect.Ī transparent or translucent plastic sheet material of a variety of colors, used as a basis for artwork and overlays.Īn acid-proof protective coating applied to metal plates prior to etching designs thereon. In this review, we summarize the nutritional and sustainable values of edible insects, look at safety and legislative measures and we finally discuss future issues.The resistance to scratching of a surface of paper by other paper surfaces or other materials. chemical hazards and antinutrients allergenicity issues that are related to different exposures, including injection, ingestion, inhalation and skin contact. To ensure safety of insects when eaten as food, considerations should be made on: microbiological contamination toxicological hazards, e.g. However, the use of edible insects as food in Europe is minimal. This makes them ideal in mitigating greenhouse gas emissions, cutting land uses and polluted water, and reducing environmental contamination. The ecological importance of insects is related to their short life cycles when reared and farmed. Furthermore, they have been reported to be sustainable. Such insects form part of cultures and diets in many Asian and African countries, and are an excellent source of essential nutrients, minerals, vitamins and proteins. This has led to considerable interest in edible insects. Globally, there is a need to seek alternative sources of protein in addition to meat.
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |