Silk farms raise cocoons through a process called sericulture. Silk producers then process the cocoon through four stages:1.Sorting: Each cocoon is sorted according to color size, shape, and texture. The quality of silk depends on the combination of these attributes. Cocoon coloring can vary from white to yellow to gray.2.Sericin Softening: Sericin or "silk gum" is the gooey substance that holds the silk filament together. The cocoons are submersed in hot and cold water to soften the sericin and silk filaments are unwound to produce a continuous thread.3.Filament Reeling: Silk filaments are unwound in the reeling process and combined together to make a thread of raw silk. Three to ten strands of silk filament are combined for a single thread as individual filaments are too fine for commercial use.4.Baling: Silk is reeled into skeins and then shipped to silk mills all over the world.
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如何制造丝绸
制造丝绸的过程被称为养蚕业。丝绸生产者通过四个阶段来加工茧：
1. 分类：每个茧都根据颜色、大小、形状和质地进行分类。丝绸的质量取决于这些属性的组合。茧的颜色可以从白色到黄色到灰色不等。
2. 线蛹去胶：丝素或“丝胶”是将丝绸丝固定在一起的粘稠物质。茧被浸泡在热水和冷水中以软化丝素，并将丝绸丝解开以生产连续的线。
3. 丝绸丝巻绕：在巻丝过程中，丝绸丝被解开并组合在一起，形成原丝的线。3至10股丝绸丝被组合成为单根线，因为单根丝绸丝对商业用途来说太细了。
4. 捆扎：丝被巻制成束，然后运往世界各地的丝绸厂。
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