基于响应曲面分析的纬编3D凹孔针织物保暖性能研究

Warmth retention property of 3D hollow-hole welf-knitted fabrics based on response surresponse surface analysis

为探究组织结构设计参数对纬编3D凹孔针织物保暖性能的影响,拓展3D凹孔针织物在保暖服装中的应用。首先运用控制变量与正交试验法,采用DRYAERN^(■)纱线与氨纶纱线,改变组织循环内吊针路数、连续成圈针数及平针路数3个设计参数,织造成15种3D凹孔针织物,测试其厚度与克罗值;其次基于响应曲面法分析3个参数对织物保暖性能的影响并建立关于克罗值的数学回归模型。结果表明:3个参数中对织物保暖性能影响最为显著的是吊针路数,其次是平针路数,最小的是连续成圈针数;连续成圈针数与平针路数的交互作用对织物保暖性能有显著影响,相关回归模型的拟合精度较高;研究为开发保暖性能优良的3D凹孔针织物提供了高效的工艺参数方案。

This paper tends to study the relationship between tissue structure design parameters and the warmth retention properties of 3D concave weft-knitted fabric.By adopting the control variable and orthogonal experiment method,using DRYARN^(■)yarns and spandex yarns,15 kinds of 3D concave weft-knitted fabrics were developed by changing the three design parameters,namely,the number of suspended stitch systems in a tissue cycle,the number of consecutive coils needles and the number of plain stitch systems,and the surface density,thickness and clo value were tested.Based on the response surface method,the influence of these three design parameters on the warmth retention property of the fabric was analyzed and the mathematical regression model of Clo value was established.The results show that the significant order of the influence of the three parameters on the warmth retention property of the fabric is as follows:the number of suspended stitch systems,the number of plain stitch systems,and the number of consecutive coils needles,and.The interaction between the number of consecutive coils needles and the number of plain stitch systems also has a significant influence on it.Meanwhile,the regression model has high fitting accuracy of fabric thermal performance.This study provides an efficient process parameter scheme for the development of 3D concave knitwear with excellent thermal performance,aiming to expand the application of 3D concave knitwear in thermal clothing.