Study on Hygroscopicity/Easy Dry Properties of Cooldry Polyester Knitted Fabrics

2012 ◽  
Vol 627 ◽  
pp. 90-95
Author(s):  
Ya Li Zhai ◽  
Li Hong Bai
Keyword(s):  
Product Development ◽  
Clustering Analysis ◽  
Moisture Absorption ◽  
Soybean Protein ◽  
Capillary Effect ◽  
Knitted Fabrics ◽  
Absorption Time ◽  
Grey Clustering ◽  
Protein Fiber ◽  
Fabric Structures

The prupose of this paper was to study hygroscopicity /easy dry properties of Cooldry knitted fabrics to facilitate product development. The capillary effect, moisture absorption, time of drip-diffusion, amount of evaporation, moisture permeability and ventilation properties of knitted fabrics made of different fabric structures and fiber contents such as Cooldry, soybean protein/Cooldry, soybean protein fiber, polyester/cotton were tested to evaluate their hygroscopicity /easy dry properties using grey clustering analysis. The results show that the Cooldry knitted fabrics are superior to soybean protein or ordinary polyester/cotton knitted fabrics in hygroscopicity /easy dry properties , and the eyelet structure fabrics knitted by interlock compound stitch have better hygroscopicity /easy dry performances than other structure fabrics.

Development of Coolsmart Functional Knitted Fabrics

2012 ◽  
Vol 503-504 ◽  
pp. 498-502 ◽  
Author(s):  
Lan Qing Feng ◽  
Yan Jun Liu
Keyword(s):  
Pattern Formation ◽  
Moisture Absorption ◽  
Raw Materials ◽  
Knitted Fabric ◽  
Machine Code ◽  
Knitted Fabrics ◽  
Bacterial Function ◽  
Fabric Structures ◽  
Selection Of

Based on the main features of coolsmart fiber and the theory of knitted fabric structures， two structures of sports and leisure knitted fabrics with fast moisture absorption, description and anti-bacterial function are introduced in this article, detailing the selection of raw materials, pattern formation effect, the machine code organization and cam set out.

Mechanical Properties of the Knitted Fabric of SPF/Modal Blended Yarn

2011 ◽  
Vol 322 ◽  
pp. 444-447 ◽  
Author(s):  
Qing Bin Yang ◽  
Yu Kun Dou
Keyword(s):  
Mechanical Properties ◽  
Soybean Protein ◽  
Knitted Fabric ◽  
Knitted Fabrics ◽  
Blended Yarn ◽  
Protein Fibers ◽  
Protein Fiber ◽  
Bending Length ◽  
The Relationship ◽  
Tearing Strength

In order to understand the influence of the blended ratio of the soybean protein fibers to the properties of blended fabrics, five soybean protein fiber/modal blended fabrics are knitted and tested. By the analysis of the results, the relationship between the properties of the blended fabrics and the blended ratio of the soybean protein fibers are obtained. With the increase of the ratio of the soybean protein fibers, the tensile strength and the elongation of the blended fabrics increase and the tearing strength and bursting strength of the fabric decrease. With the increase of the ratio of soybean protein fibers, the softness increases and the bending length, abrasion resistance of the knitted fabrics decrease.

Grey Clustering Analysis of Cotton Coolmax Weft-Varied Fabric Comfortability

2014 ◽  
Vol 543-547 ◽  
pp. 2141-2144
Author(s):  
Yong Dong Cai
Keyword(s):  
Test Data ◽  
Clustering Analysis ◽  
Air Permeability ◽  
Capillary Effect ◽  
Advantages And Disadvantages ◽  
Moisture Permeability ◽  
Grey Clustering ◽  
Effect Method

Cotton Coolmax weft-varied fabric comfortability was discussed. Nine kinds of Coolmax weft-varied fabric were selected as example, JC9.7tex yarn was used as warp. Alkali peeling Coolmax 7. 6tex yarn, common Coolmax 8.3tex yarn and JC 9.7tex yarn were combined and used as weft. Property of the nine fabrics were tested including air permeability, moisture permeability and capillary effect. Method of grey clustering analysis was adopted to analyze test data, advantages and disadvantages orders of the nine fabrics comprehensive comfortability can be got. It is considered that cotton Coolmax weft-varied fabric comprehensive comfortability can be improved by alkali peeling.

Grey Clustering Analysis of the Comfort Properties of Bamboo Pulp/Cotton Interwoven Fabric

2012 ◽  
Vol 557-559 ◽  
pp. 928-931
Author(s):  
Shun Bin Ma ◽  
Xu Huang ◽  
Wei Dong Zhang
Keyword(s):  
Clustering Analysis ◽  
Transmission Rate ◽  
Sorption Property ◽  
Moisture Sorption ◽  
Capillary Effect ◽  
Bamboo Pulp ◽  
Water Vapour Transmission Rate ◽  
Grey Clustering ◽  
Air Permeation ◽  
Good Standard

The comfort properties of fifteen bamboo/cotton interwoven fabrics with different specifications were tested, such as moisture sorption property, air permeability, capillary effect property, etc. then the author tasked fifteen bamboo/cotton interwoven fabrics as clustering object, water—vapour transmission rate、air permeation rate、weft liquid capillary effect height and warp liquid capillary effect height as clustering index, using the grey clustering analysis to evaluate the bending，creasing and draping properties synthetically. The results show that: The first grey type including 1#、2#、4#、7#, achieved optimal standard；The second grey type including 3#、5#、6#、8#、10#、11#、13#，achieved good standard；The third grey type including 9#、12#、14#、15#，their comfort properties were poor.

Heat and Moisture Comfort of Knitted Fabrics for Underwear

2011 ◽  
Vol 332-334 ◽  
pp. 890-893
Author(s):  
Yun Xiang Wang ◽  
Xiao Ming Qian ◽  
Wei Zhang ◽  
Hua Wu Liu
Keyword(s):  
Experimental Data ◽  
Clustering Analysis ◽  
Knitted Fabrics ◽  
Grey Clustering ◽  
Heat And Moisture

Heat and moisture comfort of several knitting underwear fabrics were measured and grey clustering analysis was applied to evaluate the heat and moisture comfort of these fabrics. According to the experimental data and grey clustering analysis results, the fibers can be ranked in terms of heat and moisture comfort as modal, bamboo and cotton, respectively. The evaluated fabrics were ranked as modal, bamboo, cotton/bamboo and cotton, in terms of heat and moisture comfort.

Electrospun nanofiber/cotton composite yarn with enhanced moisture management ability

2021 ◽  
pp. 004051752098497
Author(s):  
Ning Mao ◽  
Xiaohong Qin ◽  
Liming Wang ◽  
Jianyong Yu
Keyword(s):  
Water Transport ◽  
Moisture Absorption ◽  
Water Evaporation ◽  
Electrospun Fibers ◽  
Electrospun Nanofiber ◽  
Knitted Fabrics ◽  
Moisture Management ◽  
Composite Yarn ◽  
Management Ability ◽  
Cotton Yarns

Wet comfort is a critical performance for fabrics, especially when human bodies release sweat in daily life. Despite excellent moisture absorption performance, cotton yarns are still limited in the moisture release/transfer ability. Here, based on a novel electrospinning technology, polyacrylonitrile and polystyrene (PS) electrospun nanofiber/cotton composite yarns were produced, respectively. Under fluorescence microscopic observation, electrospun fibers within the composite yarns showed a uniform distribution. As a result, these composite yarn-based knitted fabrics obtained a good water transport ability and a fast water evaporation rate. According to the moisture management test, PS electrospun nanofiber composite yarn-based fabrics exhibited a relatively high one-way transport index R (400%), claiming an enhanced moisture management performance. Finally, specific surface area tests and finite element analyses were used to analyze the water transport mechanism inside the yarns. The results proved that a small number of electrospun fibers played a predominant role in enhancing the moisture management ability of the composite yarns.

A statistical analysis of low-stress mechanical properties of warp-knitted fabrics

2016 ◽  
Vol 88 (4) ◽  
pp. 467-479 ◽  
Author(s):  
Ka-yan Yim ◽  
Chi-wai Kan
Keyword(s):  
Mechanical Properties ◽  
Evaluation System ◽  
Natural Fibers ◽  
Physical Parameters ◽  
Knitted Fabrics ◽  
Fabric Hand ◽  
Low Stress Mechanical Properties ◽  
Fabric Weight ◽  
Fabric Structures ◽  
Selection Of

Fabric hand is an indispensable characteristic for the selection of fabric and product development and the buying consideration for manufacturers and consumers. However, there is little comprehensive work on the hand feel property of warp-knitted fabrics due to the mainstream natural fibers (cotton, wool and silk) and other fabric structures (woven, weft-knitted and nonwoven). The increasing potential for the wide variety of applications and development of warp-knitted fabrics is not only because its fabric hand gives better determination for fabric marketing, but also because it provides extensive scope for fabric performance and appearance. This paper reports an experimental study on the integrated fabric hand behavior of a series of warp-knitted fabrics made for various apparel applications, such as sportswear, lingerie and leisure wear. These 105 fabrics were produced by varying different physical parameters, including fabric weight and fabric thickness. The Kawabata Evaluation System for Fabric (KES-F) was employed to obtain the fabric hand properties (primary hand value and total hand value) related with stiffness, smoothness and softness. All low-stress mechanical properties and fabric hand values from the testing results were used to verify the applicability of the KES-F on warp-knitted fabrics and to analyze the relationships of fabric parameters and hand characteristics. The results indicate that the KES-F is an appropriate tool to measure the hand attributes of warp-knitted samples, and moderate correlations between physical properties and mechanical behavior were found.

Health status evaluation method of CNC machine tools based on grey clustering analysis and fuzzy comprehensive evaluation

2021 ◽  
pp. 1-18
Author(s):  
Xiaoqing Huang ◽  
Zhilong Wang ◽  
Shihao Liu
Keyword(s):  
Health Status ◽  
Clustering Analysis ◽  
Machine Tools ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Indicator System ◽  
Cnc Machine Tools ◽  
Cnc Machine ◽  
Grey Clustering

In order to solve the problem of health evaluation of CNC machine tools, an evaluation method based on grey clustering analysis and fuzzy comprehensive evaluation was proposed. The health status grade of in-service CNC machine tools was divided, and the performance indicator system of CNC machine tools was constructed. On the above basis, the relative importance of each performance and its indicators were combined, and grey clustering analysis and fuzzy comprehensive evaluation was utilized to evaluate the health status of in-service CNC machine tools to determine their health grade. The proposed health status evaluation method was applied to evaluate the health level of an in-service gantry CNC machine that can be used for the machining propellers, and the results shown that the health status of the whole gantry CNC machine tool is healthy. The proposed evaluation method provides useful references for further in-depth research on the health status analysis and optimization of CNC machine tools.

scholarly journals Research on the Evaluation Index System and the Grey Clustering Analysis Model of Teaching Quality of Physical Education in Higher Education

2015 ◽  
Vol 10 (8) ◽  
pp. 59 ◽  
Author(s):  
Baoquan Wu
Keyword(s):  
Physical Education ◽  
Clustering Analysis ◽  
Evaluation System ◽  
Quality Evaluation ◽  
Teaching Quality ◽  
Colleges And Universities ◽  
Evaluation Index System ◽  
Analysis Model ◽  
Grey Clustering

Teaching quality evaluation of physical education usually involves multiple influence factors with grey and uncertain information. This brings about limitations to effective evaluation of teaching quality of physical education in colleges and universities. Thus, this paper draws merits from previous research and proposes a teaching quality evaluation system and model of physical education in colleges and universities. First, based on real situations, grey categories of evaluation state for physical education teaching quality are established. The definite weighted functions of grey category of evaluation state are confirmed. Specific steps of the teaching quality evaluation model based on grey clustering analysis are accounted for. Finally, a case study is introduced to verify the model. This model enlightens a new way to evaluate teaching quality of physical education in colleges and universities.

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