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所在平台: Udemy |
课程主页: https://www.udemy.com/course/basic-textile-calculation/
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## Coursera 课程总结：纺织基础计算 本课程“纺织基础计算”涵盖了纺织工业（包括纺纱和织造）中所有基本的计算方法。 **课程内容包括：** * **单位换算：** 掌握各种单位之间的换算。 * **纱线计重制：** 详细介绍直接制、间接制和特克斯（Tex）制，并配有实例帮助理解。 * **纱线计重换算：** 学习不同纱线计重制之间的换算方法，以及股线的纱线计重计算。 * **织综和织物计算：** 涵盖了整经、上浆和织造生产中常用的计算公式，包括： * 整经计算（如：分段整经、每段幅宽、染色纱线重量需求）。 * 上浆计算（如：纱线重量计算、上浆率、成本计算）。 * 织造生产计算（如：织机产量、织轴、断经/断纬率等）。 **关键概念：** * **纱线计重 (Yarn Count):** 是表示纱线粗细的数值。 * **间接制 (Indirect System):** 固定重量，单位重量纱线的长度。 * **直接制 (Direct System):** 固定长度，单位长度纱线的重量。 * **特克斯制 (Tex System):** 通用制，由ISO引入的直接制，适用于天然和合成纤维。用于纤维到纱线，纤维的细度用毫尼特克斯（militex）表示，即1公里长度的纤维重量（毫克）。粗绳、细绳和麻线的细度用基洛特克斯（kilotex）表示。 * **合股纱线计重：** 股线通过加捻制成，以提高强度。合股纱线的计数表示其组成股数的数字前加上表示股数的数字。 * **织造相关指标：** * **CMPX (Centimillion Picks):** 每千万梭次的断经/断纬百分比。 **课程优势：** 本课程对于纺织专业的学生和在职专业人士都极具价值，能够全面掌握纺织品的计算基础。
This course Basic Textile calculation is related to all basic calculations used in textile industry ie spinning & weaving. The content includes all conversions of units, yarn count system, conversion formulas for yarn counts, calculations in warping, sizing & weaving. This course is helpful for students & working professionals.Yarn count system includes Direct, Indirect & Tex count system with examples for better understanding. Conversion of count from one system to other, count of plied yarn etc. Weaving& fabric calcuations part covers most of useful formulas required for warping calculation, yarn requirement calculations, sizing calculations & production calculations of weaving.COUNT of yarn is numeric expression, which defines its fineness.1. Indirect system- Fixed Weight SystemIn this system Count is no. Of units of length per unit weight of yarn.2. Direct system - Fixed Length SystemIn this system Count is no. of units of weight per unit length of yarn.3. Universal System -Ø TEX is universal system.Ø It is Direct system introduced by ISO.Ø Useful for natural as well as synthetic fibers.Ø Used for fiber to yarnØ Finess of fiber is expressed in militex - Wt. Of fiber in mg in one km lengthØ Fineness of ropes, cords & twines expressed in kilotex.Count of Folded / Plied yarns: Single yarns are made into ply by twisting in order to increase strength. Count of folded yarns is indicating size is preceded by no. Indicating ply or strand of which the yarn is composed.Direct Warping; Sectional warping; DBF; No of sections, width of section, weight requirement of dyed yarn.Sizing: Yarn weight cal, size pick up%, costing calculations.Weaving - Loom production, Reed, CMPX - Warp/weft breakages per centi million picks.
