32x—=7.2%取修正值232根/10cmPJ?472Nk?箱号(齿/IOcm)Bd?每筘穿入数(根)aw?纬缩(%)取修正值7.?2%1.1.3计算上机幅宽:B=_H2_=^7(^=18319(1—aw1—7.2%B?上机幅宽,cmWf?坯布幅宽,cmaw?纬纱缩率,(%)1.1.4计算每米织物用纱量:(1)每米经纱用纱量:Q)=MzxTzx(l+/)1000x(1-巧)x(1+初x(1-~)_?8048x13.1x(1+0.9%)_1000x(1-12%)x(1+1.2%)x(1-0.6%)=120.17g/mQj?织物经纱用纱量,g/mTtj?经纱特数,tex/?加放率,取0.9%Sj?伸长率,取1.2%aj?经纱缩率,取12%hj?经纱回丝率,取0.6%(2)每米纬纱用纱量:PwxUyx7hvx(l+/)10000x(l-6zvv)x(l-/w)394x170x13.1x(1+0.9%)"1OOOOx(1-7.2%)x(1-0.2%)=95.59g/mQw?织物纬纱用纱量,g/mTtw?纬纱特数,tex/?加放率,取0.9%aw?纬纱缩率,取7.2%/w?回丝率,取0.2%1.1.5计算每平方米坯布的无浆干燥重量:1?PjxTtjx(l-Fj)PwxTtw,G=?x(——+?)100x(l+W)?i-aj?1-aw1?472x13.1x(1-0.8%)394x13.1~100x(1+5.9%)X(1-12%?+1-7.2%=118.34g/m2G?织物无浆干燥重量,g/m2Fj?飞花率,取0.8%W?公定回潮率,取5.9%1.1.6计算织物紧度:Ej=kdxPjxy[Ttj=0.037x472xVl3?l=63.05%Ej?织物经向紧度,%Kd?纱线直径系数,取0.037Ew=kdxPwxy/Ttw=0.037x394xVl3J=52.63%Ew?织物纬向紧度,%
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