AMERICAN LEATHER CHEMISTS ASSOCIATION

Description

Gem Duck: A heavy duck fabric cemented to insoles so as to support and strengthen the insole lip. Gill Box Leather: A leather used in textile machinery , similar to Comber leather. (See also Apron Leathers.) Glazed Finish: Produced by polishing grain surface under heavy pressure of a roller of agate, glass or steel. Infrequently made by a varnish or shellac coating. Glazed (Glace) Kid: Kid leather, usually chrome tanned, with a highly polished, smooth finish. Glove Leather: Term covering two distinct classes: (1) the leather used for dress gloves, including those for street, riding, and sports wear. Tanned predominately from hair sheep, wool sheep, and lamb skins and to a lesser degree from deer, pig, goat, and kid skins, and (2) the leather used for utilitarian or work gloves and made of a variety of hides and skins, of which the most important are horsehides, cattlehide splits, calfskins, sheepskins, and pigskins. Glove Splits: Split chrome-tanned cattlehide leather used for work gloves. Goodyear Welt: The most widely used type of shoe construction. A hidden chain-stitched inseam holds together the upper, welt, insole, and lining.

Blocking: The adhesion between touching layers of leather such as occurs under moderate pressures during storage or use. Bloom: A light-colored deposit of ellagic acid appearing on the grain surface of leather tanned with certain pyrogallol tannins, such as myrabalans, valonia, and dividivi. That appearance may be objectionable for some purposes, but bloom does not significantly affect the other physical properties of the leather. Blucher: A laced shoe in which the quarters extend forward over the vamp and are left loose at the inner edge. Blue: Usually in the phrase â??in the blueâ? applied to hides or skins that have been chrome-tanned but not dyed nor fat-liquored. Blushing: Dulling or mottling of the finish of the leather resulting from condensed moisture during the drying of the finish. Also referred to a lacquer bloom. Boarded Leather: Leather on which a false or accentuated grain has been produced by folding the grain side and working the leather back and forth. Hand boarding is done with a curved cork board attached to the workerâ??s arm and rolled over the folded skin. Boardy: Adjective applied to stiff, inflexible leather.

A candidate for election to ACTIVE membership shall have or shall have had professional experience in fields of science and engineering related to leather, hides, or an allied trade technology or in animal sciences related to hides, hide structures, or leather manufacture and technology. This professional and scientific experience may include: 1) Research in any field of natural science, biochemistry, medicinal chemistry or engineering having a direct or indirect bearing on the manufacture, properties, structure, chemistry, physics or use of leather or hides. 2) The analysis or testing of leather or leather products or hides or of any material of major importance in their manufacture and processing. 3) The direct technical supervision, in a responsible capacity, of any operation involved in the manufacture of leather or leather products or the processing of hides. 4) Direct technical supervision in a responsible capacity for the design or manufacture of any material or item of equipment or machinery used in the leather industry or hide industry or in fabrication of leather goods.

The ALCA is the seventh oldest chemistry association in the United States, having just held our 109 th Annual Meeting in Pinehurst, NC this past June. We publish the fourth oldest chemistry journal, JALCA , Journal of the American Leather Chemists Association. We have more than 300 members, domestic and international, representing all facets of the modern, global leather industry: chemical suppliers, hide processors, tanners, leather manufacturers, researchers and consultants. Ours is one of the most diverse and multidisciplinary chemistry associations in existence.

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