滚筒洗涤负载类型对织物运动及其洗涤性能的影响

Influence of wash load type of drum washer on textile motion and washing performance

为研究不同滚筒类型在洗涤过程时织物运动形态和洗净性能,借助高速摄像机记录滚筒洗衣机(海尔 WH7560P2)内运动织物形态,基于几何矩理论,求得运动织物质心。依据观测织物质心运动轨迹,提出了8个表征织物运动的指标,建立运动指标与洗净率之间的关系,该经验模型适用于海尔滚筒洗衣机WH7560P2。采用单因素试验研究涤纶、涤/棉混纺织物和纯棉3种负载对滚筒洗涤过程织物运动的影响。研究发现:织物类型不同,运动形态不同,洗净率和磨损率也不同;纯棉负载被动运动面积占比最大62%,洗净率和磨损率最大,分别为44%和24.5%;涤纶负载被动运动面积占比最小为41%,洗净率和磨损率也最小,分别为39%和6.6%;3种负载织物运动过程都交替出现滑落和摔落运动,有利于提高洗涤效果。

In order to understand the influence of wash load types on textile motion pattern and washing performance, a high-speed camera was used to record the outline of fabric in the front-loading washer (Haier WH7560P2). The recorded image of the textile was converted into binary image to calculate the textile centroid. According to the trace of textile motion, 8 movement indexes were put forward to characterize the textile motion, and the relationship between movement indexes and washing efficiency was established, which is applicable for the model of Haier WH7560P2. Single experiment design was used to study the relationship between three kinds of wash load and textile motion during washing. The results indicate that textile motion varies with the wash load types. The ratio of passive motion region of cotton wash load is the largest with value of 62% as well as the washing efficiency and rate of fray (44% and 25% respectively). The ratio of passive region, washing efficiency and fray rate of polyester wash load is the least with value of 41%, 39% and 6.6% respectively. Sliding and falling of textile change alternatively in washing period which could improve washing performance.