纺织学报 ›› 2019, Vol. 40 ›› Issue (06): 44-49.doi: 10.13475/j.fzxb.20180702306

• 纺织工程 • 上一篇    下一篇

滚筒洗涤负载类型对织物运动及其洗涤性能的影响

刘红1,2,3, 丁雪梅1,2,3(), 吴雄英4   

  1. 1.东华大学 服装与艺术设计学院, 上海 200051
    2.同济大学 上海国际设计创新研究院, 上海 200080
    3.现代服装设计与技术教育部重点实验室(东华大学), 上海 200051
    4.上海海关, 上海 200135
  • 收稿日期:2018-07-10 修回日期:2019-03-11 出版日期:2019-06-15 发布日期:2019-06-25
  • 通讯作者: 丁雪梅
  • 作者简介:刘红(1989—),女,博士生。主要从事家庭滚筒洗涤机械作用对织物洗后外观及洗净性能研究。
  • 基金资助:
    国家重点研发计划资助项目(2018YFF0215703);上海市科委技术标准专项项目(17DZ2202900);上海市设计学IV类高峰学科资助项目(DD18005);东华大学博士研究生创新基金项目(USF-DH-D-201708)

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

LIU Hong1,2,3, DING Xuemei1,2,3(), WU Xiongying4   

  1. 1. Fashion & Art Design Institute, Donghua University, Shanghai 200051, China
    2. Shanghai International Institute of Design & Innovation, Tongji University, Shanghai 200080
    3. Key Laboratory of Clothing Design & Technology (Donghua University), Ministry of Education, Shanghai 200051, China
    4. Shanghai Customs District P.R.China, Shanghai 200135, China
  • Received:2018-07-10 Revised:2019-03-11 Online:2019-06-15 Published:2019-06-25
  • Contact: DING Xuemei

摘要:

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。

关键词: 滚筒洗衣机, 负载, 织物运动, 回归分析, 洗涤性能

Abstract:

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.

Key words: drum washer, wash load, textile motion, regression analysis, washing performance

中图分类号: 

  • TS973.1

图1

洗涤阶段织物质心运动轨迹 注:R表示滚筒洗衣机内筒半径。"

图2

织物运动受力分析 注:m表示织物质量;mg表示织物重力;Fc=mωr2表示离心力;f=μmgcosθ表示摩擦力(图2(a)),μ表示摩擦因数,θ表示织物重力与离心力间夹角;F=mgsinθ表示重力的分力;ω表示滚筒旋转角速度;r表示织物质心至内筒筒心的距离;Fg=mgcosθ表示重力沿垂直方向的分力;F1=μmωr2-μmgsinθ,表示图2(b)中的摩擦力。"

表1

试验设备与标准物质"

设备/标准布 型号 应用 厂家
全自动滚
筒洗衣机
WH7560P2 洗涤 青岛海尔滚筒洗衣机有限公司
白度计 WSB-3 测试污染布洗涤前后反射率 温州大荣纺织仪器有限公司
织物运动追
踪系统
- 记录织物运动 -
标准磨损布 EMPA 304 机械力 上海标准研究所
炭黑污染布 WFK 16053 洗净率 WFK Testgewebe
GmbH

表2

试验材料"

纤维成分 结构 湿态柔
软度
湿态表面
摩擦性
厚度/
mm
面密度/
(g·m-2)
100%涤纶 平纹 58.56 49.28 0.15 69
涤/棉混纺 平纹 49.55 54.96 0.20 115
100%棉 平纹 35.06 63.64 0.52 185

图3

织物质心欧拉速度分布"

图4

织物拉格朗日速度分布"

图5

织物质心在滚筒横截面内的停留时间占比分布"

表3

织物质心运动指标及洗涤效果"

织物
种类
运动指数 洗涤效果
质心平均速
度/(m·s-1)
被动运动面
积占比/%
运动区域总
面积占比/%
质心到内筒
筒心平均
距离/m
质心运动
距离/m
质心交换
频率/Hz
预估摔落次
数/(次·min-1)
洗净率/% 磨损率/%
涤纶 0.44 0.41 0.49 0.11 29.93 0.44 50 39 6.60
涤/棉 0.41 0.54 0.59 0.10 34.60 0.50 58 41 14.60
0.41 0.62 0.47 0.10 30.90 0.70 53 44 24.50
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