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Density of thread, how to translate the numbering of the thread?
    Selection of yarn for any one particular application depends on many parameters. The thickness (density) of the thread is the main parameter, which determines that the quality of the finished product functional and aesthetic requirements. The thickness (density) of the thread is determined by the number, which is the ratio of its length and weight given yarn numbering systems, and is written as a number. To determine the thickness of the filaments is necessary to know the different strands of the numbering system and their relationships.Yarn numbering systems of constan..
Types of zippers and differences runners (sliders) for them!
First Lightning was developed in 1891 by American inventor Whitcomb Judson Leon. It was the world's first prototype of a zipper, a far from perfect design was very different from the modern zipper. Only in 1923 the invention was widespread due to refinements Swedish engineer Gideon Sundbeka. From that moment began the rapid development of construction and types of lightning. Currently, the undisputed leader in the manufacture of garment accessories and high quality zippers, is a Japanese multinational corporation YKK® Group, bringing together over 115 companies in 60 countries. YKK® Group a wo..
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