基于空间模型的绗缝因素对羽绒制品保暖性的影响

Effect of Quilting Factors on the Thermal Insulation Property of Down Products Based on Spatial Model

以羽绒制品绗缝保暖性为研究对象,选取30 cm×30 cm羽绒试样,将3种绗缝形式(水平绗缝、垂直交叉绗缝、斜线绗缝)、7种绗缝数量进行组合,在水平放置与24 h悬挂放置两种状态下,分别测试羽绒的保暖性,探究两种放置方式下不同绗缝因素对羽绒保暖性的影响,同时建立绗缝后羽绒表观体积的近似几何模型。结果表明:绗缝形式和绗缝数量对羽绒保暖性均影响显著,考虑羽绒制品实际使用状况,绗缝形式为斜线绗缝、绗缝数量为2条时羽绒保暖性较优。两种放置方式下的羽绒保暖性有显著差异。当绗缝数量≥2条时,建立水平放置与24 h悬挂放置的羽绒保暖性线性回归模型,预测精度为0.998。建立的羽绒表观体积和保暖性回归模型可用于定量分析和预测羽绒制品的保暖性。

Quilting is an important factor affecting the thermal insulation property of down products.Taking the quilting warmth of down products as the research object,for the down samples of 30 cm×30 cm,3 kinds of quilting forms(horizontal quilting,vertical cross quilting and diagonal quilting)and 7 kinds of quilting number were selected to test the thermal insulation property of down respectively under the two conditions of not hanging and 24 hours hanging,and to study the influence of different quilting factors on the thermal insulation property of down under the two kinds of placing treatments.At the same time,the approximate geometric model of the apparent volume of quilted down was established.The results show that both the form and number of quilting have significant effect on the down thermal insulation property,and considering the actual use of down products,the diagonal quilting is confirmed and the quilting number is confirmed as two.There are significant differences in the thermal insulation property of down between the two treatments.When the number of quilts is more than or equal to 2,the linear regression model of the down thermal insulation property of the no hanging and 24-hour hanging treatment is established,and the prediction accuracy is 0.998.The regression model of down apparent volume and thermal insulation property can be used to quantitatively analyze and predict the thermal insulation property of down products.