Research on Thermal and Moisture Comfort of Seamless Knitted Fabric Made of Triangle-Hollow Nylon

2011 ◽  
Vol 66-68 ◽  
pp. 1311-1314
Author(s):  
Zi Min Jin ◽  
Qiao Hua Shen ◽  
Ming Shan Fan ◽  
Jian Wei Tao
Keyword(s):  
Fiber Material ◽  
Air Permeability ◽  
Knitted Fabric ◽  
Moisture Permeability ◽  
Warmth Retention ◽  
Better Than

To research thermal and moisture comfort of seamless knitted fabric made of triangle-hollow nylon which is developed newly, the paper chooses triangle-hollow nylon, circle-hollow nylon and ordinary nylon as fiber material and every nylon adopts weft plain, one-and-one mock rib and one-and-three mock rib for test weaving. Then nine samples are obtained. The paper analyses their air permeability, moisture permeability and warmth retention property. Result indicates that air permeability and moisture permeability of seamless knitted fabric made of triangle-hollow nylon are better than that of two other kinds of nylon’s seamless knitted fabric.

Properties Test and Analysis of Aloe Fiber Knitted Fabric

2012 ◽  
Vol 503-504 ◽  
pp. 641-645
Author(s):  
Xiao Ting Feng ◽  
Jia Guang Meng ◽  
Juan Bai
Keyword(s):  
Comprehensive Evaluation ◽  
Air Permeability ◽  
Fuzzy Mathematics ◽  
Knitted Fabric ◽  
Moisture Permeability ◽  
Autumn And Winter

This article mainly introduced various properties of knitted fabric made of aloe fiber, including air permeability, moisture permeability, fastness, rigidity and flexibility, heat retention property, crease recovery, and made a comprehensive evaluation with fuzzy mathematics. Finally we obtained the best stitches applying to spring, summer, autumn and winter.

Research on Air Permeability, Moisture Permeability and UV Protection of Polyester Linen Blended Knitted Fabric

2013 ◽  
Vol 821-822 ◽  
pp. 411-414
Author(s):  
Yu Xiu Yan ◽  
Yan Na Feng ◽  
Xiu Yin Wang ◽  
Jing Jin ◽  
Jian Wei Tao
Keyword(s):  
Air Permeability ◽  
Uv Protection ◽  
Knitted Fabric ◽  
Regression Equations ◽  
Knitted Fabrics ◽  
Moisture Permeability ◽  
Fabric Structures

Most of UV protection textiles are made of chemical fibers, and a large part of them have poor air permeability and moisture permeability, which influences the wearing comfort. This work blended polyester and linen to produce a new kind of knitted fabric and tested the fabric structures, air permeability, moisture permeability and UV value. Excel and SPSS were used to compare the properties of new knitted fabrics and find out the relationships between the constructional parameters and properties. The results indicated that there are regression equations between constructional parameters and properties and got a new kind of UV protection fabric with good air permeability and moisture permeability.

The Research of Warmth Retention Property of Non-Woven Wadding

2011 ◽  
Vol 197-198 ◽  
pp. 1708-1711
Author(s):  
Cheng Qian
Keyword(s):  
Heat Loss ◽  
Air Permeability ◽  
Loss Reduction ◽  
Warmth Retention

Nowadays in the market, there are many kinds of warm retention materials. Although each material has its own heat loss reduction, there should be methods for evaluating the warmth properties and giving out reliable results. In this paper, the warmth retention properties of three typical non-woven wadding were studied. On the basis of four warming related tests and analyses, the conclusions were got that after filming, because of existence of motionless air, their warmth retention properties increase obviously. In the same time, the air permeability of the three non-woven wadding decrease clearly because of the film on the wadding surface which obstructs air from flowing easily.

Effects on the Properties of Polyethylene Film Aging by Different Methods

2013 ◽  
Vol 830 ◽  
pp. 49-52 ◽  
Author(s):  
Chen Li ◽  
Sheng Ling Xiao
Keyword(s):  
Tensile Strength ◽  
Pilot Study ◽  
Tensile Property ◽  
Thermal Aging ◽  
Air Permeability ◽  
Polyethylene Film ◽  
Use Value ◽  
Moisture Permeability ◽  
Ultraviolet Aging

Aging of plastics occurs in use, it makes the performance degrade, and losing use value finally. In order to compare ultraviolet aging with thermal aging, we carry out a pilot study on the performance changes of PE film. The results demonstrated that the tensile property became lower under two aging methods, the tensile property during the thermal aging decreased by 6.07% but it was 15.08% in the ultraviolet aging at 120h, obviously the effects of the ultraviolet aging on the tensile strength were more significant, it declined faster. The air permeability curves were on the rise under the two aging methods, the results demonstrated that the effect of the ultraviolet aging on the air permeability rose slightly more than the thermal aging. The moisture permeability curves decreased firstly and then increased, but the values of the ultraviolet aging were higher.

The air permeability of composite fiber material

2021 ◽  
Vol 1 ◽  
pp. 42-48
Author(s):  
T. A. Leshchenko ◽  
◽  
N. V. Chernousova ◽  
A. V. Dedov ◽  
◽  
...  
Keyword(s):  
Composite Materials ◽  
Permeability Coefficient ◽  
Pore Space ◽  
Fiber Material ◽  
Composite Fiber ◽  
Air Permeability ◽  
Rubber Content ◽  
Limited Mobility ◽  
Fibrous Matrix ◽  
Composite Fiber Material

The air permeability of composite materials obtained by impregnating a non-woven needle-punched cloth with latex was investigated. The permeability of composite materials with different rubber content was estimated by the coefficient of air permeability at a pressure drop of 49 and 100 Pa. The dependence of the air permeability coefficient on the degree of impregnation of the fabric showed that at 15 – 20 % of the rubber content, the maximum air permeability coefficient is observed, and when the degree of impregnation increases, the air permeability coefficient decreases. The process of forming a porous structure of composite materials and its influence on air transport is considered. The increase of the coefficient of permeability is explained by the fixation of the fibers of the surface layer with limited mobility under the action of air flow, and a reduction in the coefficient of air permeability by reducing pore space and an increase in fiber matrix composite materials in the process of sushi-Ki-impregnated material. The air permeability of composite materials is determined by the ratio between the processes of increasing the volume of the fibrous matrix and reducing porosity when filling the space between the portages with rubber particles. A model is proposed for calculating the coefficient of breathability of composite materials of known density.

Preparation of Cross-Linked Cellulase Aggregate and Application to Cool Finishing of Cotton Fabric

2021 ◽  
Vol 8 (3) ◽  
pp. 1-7
Author(s):  
Gang Bai ◽  
Bingbing Feng ◽  
Yanchun Liu ◽  
Shujiao Dai
Keyword(s):  
Water Vapor ◽  
Cotton Fabric ◽  
Silicone Oil ◽  
Air Permeability ◽  
Kinetic Friction ◽  
Capillary Effect ◽  
Bending Rigidity ◽  
Moisture Permeability ◽  
Treated Sample ◽  
The Stability

Cellulase was immobilized by cross-linked enzyme aggregation to improve the stability of cellulase. The prepared cross-linked cellulase aggregates (CLCAs) and ice silicone oil were used for the cool finishing of cotton fabric. The results showed that the CLCAs extended the cellulase stability compared to free cellulase. The surface softness, smoothness, moisture permeability, and air permeability of the cotton fabric increased after CLCAs and ice silicone oil treatment. Shearing rigidity of the treated sample was 0.44 cN/(cm·deg), bending rigidity was 0.0069 cN cm, and the drape coefficient was 29.3%. Coefficient of kinetic friction of the treated sample was 0.186. The capillary effect of the treated fabric was 12.1 cm/(30 min). Air permeability was 354.3 L/(m2·s). Moisture penetrability was 3.912 g/(m2·d). The thermal and water-vapor resistance were 0.0194 m2·°C/W and 4.691 Pa·m2/W, respectively.

Optimization of Knitted Fabric Comfort and UV Protection using Desirability Function

2016 ◽  
Vol 11 (4) ◽  
pp. 155892501601100 ◽  
Author(s):  
Anindya Ghosh ◽  
Prithwiraj Mal ◽  
Abhijit Majumdar ◽  
Debmalya Banerjee
Keyword(s):  
Thermal Conductivity ◽  
Desirability Function ◽  
Air Permeability ◽  
Quality Parameters ◽  
Uv Protection ◽  
Knitted Fabric ◽  
Uv Resistance ◽  
Knitted Fabrics ◽  
Target Values ◽  
Fabric Comfort

The present study deals with the optimization of multiple quality parameters of single jersey and 1×1 rib knitted fabrics using the desirability function approach. Comfort properties such as air permeability, thermal conductivity and safety properties such as UV protection are combined to yield an ‘overall desirability’ varying from zero to one. The overall desirability has been maximized versus target values for air permeability, thermal conductivity and UV resistance. Experimental validation confirms that the proposed method can be used to design a knitted fabric with desired comfort and UV resistance characteristics.

Analysis of physical properties and structure design of weft-knitted spacer fabric with high porosity

2016 ◽  
Vol 88 (1) ◽  
pp. 59-68 ◽  
Author(s):  
Chaoyu Chen ◽  
Zhaoqun Du ◽  
Weidong Yu ◽  
Tilak Dias
Keyword(s):  
Three Dimensional ◽  
Middle Layer ◽  
Air Permeability ◽  
Structure Design ◽  
Experimental Results ◽  
Knitted Fabric ◽  
High Porosity ◽  
Compression Properties ◽  
Plain Knitted Fabric ◽  
Spacer Fabric

The main content dealt with in the paper is to present a kind of weft-knitted spacer fabric with high porosity. It is a kind of three-dimensional textile fabric with a sandwich structure that consists of a middle layer of multifilament and two outer layers of plain-knitted fabric. Compared with traditional warp-knitted spacer fabric as cushion mats, weft-knitted spacer fabric is well used as apparel for good softness, thermal/moisture comfort, and air permeability. Therefore, three structures were designed and nine samples were prepared by choosing plain-knitted fabric as the outer layers and selecting soft and thin multifilament as a middle layer. Experimental results show that this kind of weft-knitted spacer fabrics has high porosity, greater than 86%, and also demonstrate that the weft-knitted spacer fabric is suitable for comfortable apparel based on experimental results of air permeability, compression properties, stiffness, and thermal insulation properties.

Study on Air Permeability and Warmth Retention Ability of Polyurethane Foam Plying with Fabrics

2017 ◽  
Vol 866 ◽  
pp. 233-239 ◽  
Author(s):  
Chi Wai Kan ◽  
Clare Man Ching Ko ◽  
Kittisak Ariyakuare ◽  
Wasana Changmuong ◽  
Rattanaphol Mongkholrattanasit
Keyword(s):  
Thermal Property ◽  
Polyurethane Foam ◽  
Air Permeability ◽  
Experimental Results ◽  
Retention Ratio ◽  
Warmth Retention

In this study, we evaluated warmth retention ability of polyurethane foam (non-laminated and laminated) plying with fabrics. The warmth retention ratio, measured by KES-F7, was used for expressing the thermal property of plied samples. Experimental results revealed that the warmth retention ratio of samples that were plied with fabrics were higher than the foams in plain (i.e. without plying with fabric). For non-laminated foams, the fabrics had generally increased the warmth retention ratio by 10%. For laminated foams, the increase was about 4 to 5% in the warm retention ratio. By comparing the warmth retention ratio between the non-laminated foams and laminated foams, laminated foams have higher heat retention power. Being a close-to-skin garment, the air permeability is an important factor to determine their usage. Thus, we examined the air permeability of the different samples and the results were discussed properly.

The Wearability of Soybean Protein/Poly (Ethylene Terephthalate) Composite Fabric

2014 ◽  
Vol 1004-1005 ◽  
pp. 513-516
Author(s):  
Yong Hua Lu ◽  
Su Hua Gao ◽  
Feng Xiu Zhang ◽  
Yuan Song Zhang ◽  
Gang Xian Zhang
Keyword(s):  
Water Absorption ◽  
Ethylene Terephthalate ◽  
Soybean Protein ◽  
Air Permeability ◽  
Pet Fabric ◽  
Moisture Permeability ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene ◽  
Recovery Angle ◽  
Fabric Surface

In this paper,the soybean protein / poly (ethylene terephthalate)PET composite fabric was obtained and its wearability was mainly studied. It is found that the moisture regain, water absorption, air permeability and moisture permeability of soybean protein PET composite fabric were improved greatly. In addition, the whiteness and elastic wrinkle recovery angle kept well, and the stiffness increased incredibly. Therefore, soybean protein being grafted on PET fabric surface not only improved the biocompatibility, but also the wearability.

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