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Vat dyes
| Глоссарий по текстилю и текстильной промышленности |
- A class of water-insoluble dyes which are applied to the fiber in a reduced, soluble form (leuco compound) and then reoxidized to the original insoluble form. vat dyes are among the most resistant dyes to both washing and sunlight. they are widely used on cotton, linen rayon, and other cellulosic fibers.
- Dyes
- V-bed flat-knitting machine: a latch-needle weft-knitting machine with two needlebeds at a 90° angle to each other in the form of an inverted v
- Each needlebed is at a 45° angle to the horizontal
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Dyes, английский
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Horizontal, английский
- Горизонталь; горизонтальный
- Горизонталь; горизонтальный 287
- At right angles to the direction of gravity; on the level; parallel to the horizon; neither vertical nor inclined.
- A direction parallel to the horizon, or what is commonly termed lying flat. one of the greatest inconveniences navigators have to struggle with is the frequent want of a distinct sight of the horizon. to obviate this a horizontal spinning speculum was adopted by mr. lerson, who was lost in the victory man-of-war, in which ship he was sent out to make trial of his instrument. this was afterwards improved by smeaton, and consists of a well-polished metal speculum about 3-1/2 inches in diameter, inclosed within a circular rim of brass, so fitted that the centre of gravity of the whole shall fall near the point on which it spins. this is the end of a steel axis running through the centre of the speculum, above which it finishes in a square for the convenience of fitting a
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Percale, английский
A closely woven, plain-weave, spun fabric used for dress goods and sheeting, generally 80 x 80 threads per inch or better.
Sulfur dyes, английский
- A class of water-insoluble dyes that are applied in a soluble, reduced form from a sodium sulfide solution and are then reoxidized to the insoluble form on the fiber. sulfur dyes are mainly used on cotton for economical dark shades of moderate to good fastness to washing and light. they generally give very poor fastness to chlorine.
- Dyes
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