| A higher industrialization level give us a lot of convenience, but it also brings somedrawbacks, one of which is that air pollution have been getting worse. With the development ofsocial and economic and the improvement of living standards, people’s health awareness is alsogrowing. Especially when the mechanism of action of air negative ions and its effect has beenincreasingly understood, the negative oxygen ions textile will be developed as a kind offunctional products. Therefore, it has very important meaning and broad application prospects toresearch and develop negative oxygen ions textiles with the multifunction of air purification,warmth retention and health care.The negative oxygen ion polyester fibers had been observed through the vertical andhorizontal electron microscope in the paper, the fiber length, fineness, tensile breaking strength,elongation, moisture regain and other basic properties had been tested and analyzed.Experiments had shown that: there were a number of grooves and micropores on the longitudinalsurface of negative oxygen ions polyester fiber, and a number of porous structure on crosssection of fiber. Based on it, the negative oxygen ions polyester fiber owned better moistureregain than ordinary polyester, and its moisture absorption was good. Breaking strength andelongation at break of negative oxygen ions polyester fiber were both less than ordinarypolyester fibers, and it had smaller fracture work, higher initial modulus and fatigue resistance ispoor. Taking into account the possibility of weaving processing and the comfort requirements offollow-up products, the negative oxygen ions polyester fibers and viscose fibers had beenblended and intertwined in different proportions. The tensile properties of blended yarns ofnegative oxygen ions polyester fiber and viscose fiber had been tested, it was shown that all theblended yarns met the weaving requirement and were suitable for fabric’s development. So inthis paper, the blended yarns were selected for the warp and weft materials, and according todifferent fabric weave and the warp and weft density, five fabrics were manufactured.Negative oxygen ion concentration and far-infrared emissivity of blended fibers and fivekinds of samples had been tested and analysed, studies had shown that: with the increasing of negative oxygen ions polyester fiber content in the blended fibers, the released concentration ofnegative oxygen ions had rised, the blended fibers of50negative oxygen ions polyester fiber/50viscose fiber owns the highest negative oxygen ions concentration, reaches to4810/cm3and beclose to anion concentration of the field. Far-infrared emission rate of negative oxygen ionsblended fibers were all bigger than0.80, and owned good far-infrared features according toCAS115-2005“health functional textiles”. Experimental analysis had shown that the honeycombfabric B5released the highest negative oxygen ions concentration, followed by the satin fabricB4, and plain weave fabric B1was worst in the other same process conditions; when the warpand weft density and tightness was greater, the friction between the yarns was more intense andmore negative oxygen ions were produced; as the time of friction continued, the releaseconcentration of negative oxygen ions in the fabric had increased until it reached to a saturationvalue, and it no longer continued to increase. Far-infrared emission rate of five samples were allgreater than0.80, and owned good far-infrared emission effect, and far infrared emissivity valueof each fabric was not much different.Considering that all kinds of fabric may be worn in the real life, and the releasedconcentration of negative oxygen ions had been tested through rubbing the negative oxygen ionsfabric and ordinary viscose knitted fabric in the paper. Taking satin fabric B4and honeycombfabric B5for example, they respectively had been rubbed with C1, C2, C3three kinds of knittedfabric under the different organization circumstances but the same other process parameters. Theexperiments showed that organizational structure had a great effect on the released concentrationof negative oxygen ions in the fabric. when the organization structure has a bumpy effect, it wasmore conducive to release negative oxygen ions.In order to meet the wearability requirements, the samples’s warmth retention, breathablerate, ventilation volume, wrinkle recovery angle, anti-pilling grade, abrasion resistance, staticdrape coefficient, tensile fracture properties had tested and analyzed in the paper. And thenfunctionality and wearability of samples were arranged through using fuzzy comprehensiveevaluation method. The results showed that: the comprehensive performance of the honeycombfabric B5is best, followed by satin fabric B4, yarn components of these two fabrics both were50negative oxygen ions polyester fibers/50viscose fiber. According to the above experimentalresults, the blended yarn of50negative oxygen ions polyester fiber/50viscose fiber and silk have been selected respectively as the weft and warp raw materials in the development ofbedding suite, the autumn-winter bedding had been designed and produced with themultifunction of air cleaning, warmth retention, health care and unique artistic style, made thenegative oxygen ion textiles be loved by more consumers. |
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