Investigation on mechanical and thermal properties of knits from peat fibers and their combination with other natural fibers

Abstract

Newly designed knits of highly eco-friendly peat fibers and their combination with widely used cotton and wool fibers have been analyzed in this study. The present investigation is focused on the thermal and mechanical properties of weft knits made of peat fiber yarns and their combinations (in various percentages) with other natural fiber yarns, such as cotton and woolen yarns, as well as with elastomeric yarn, as newly developed knits are designed for clothing. It was found that newly developed knitted fabrics with peat fibers have an optimal structure for use. The renewable peat fiber yarns, spun from two kinds of natural cellulose fibers -decomposed Eriophorum vaginatum (cotton grass) sedge stems and cotton -have intermediate strength and elongation values between cotton and flax yarns, and thus are fit for knitting. All the newly designed knitted fabrics have high abrasion resistance and can be used for clothing manufacture. It was found that the nature of the yarn's raw material and the number of different yarns in one stitch influence the heat transfer dynamic. The heat transfer dynamic through the peat fiber knit is slower than that through the cotton fabric, but it is faster than through the woolen fabric. When the heat transfer process through knitted fabric is faster, this structure may be recommended for warmer seasons.

Investigation into the effect of fabric structure on surface temperature distribution in weft-knitted fabrics using thermal imaging technique

“…5. The values of curves are the calculated average from five tests for each sample at each time point [17]. Figures 5(a) As can be seen in tab.…”

“…Therefore, the main aim of this work was to investigate the surface temperature profile in different weft-knitted fabrics. Also, most of the previous studies have been examined static heat transfer in fabrics, while the investigation of dynamic heat transfer in fabrics provides useful information about temperature distribution within the fabrics per a certain time [17]. Therefore, in this study, dynamic heat transfer in each sample was investigated.…”

Comparative Analysis of Peat Fibre Properties and Peat Fibre-Based Knits Flammability

“…The yarns were ordered and purchased from Finland. Tensile characteristics of the peat and cotton yarns were presented in the article published by authors in [24]. The main structural characteristics of newly designed and investigated fabrics are presented in Table 1 (Notes: (i) Sample code means the raw composition of the yarns used for samples' knitting: P is peat, C is cotton yarn.…”

Analysis of the Thermal Insulation of Textiles Using Thermography and CFD Simulation Based on Micro-CT Models

“…According to the literature, micro-computed tomography (micro-CT) has been used to provide detailed information on the geometry and geometric internal structure [3][4][5][6][7][9][10][11][12], as well as for simulation purposes [8,11]. Because of the complex structure of composites, micro-CT has been used by Huang et al [4] to provide detailed information on the geometric mesostructure of continuous fiber composites to construct detailed geometric models of engineering textiles based on three-dimensional (3D) images.…”

“…In another study [5], it has been used to characterize the microstructure of fabrics to acquire the input parameters for models of textiles and textile composites. Mikučioniene et al [3] compare the mesoscopic internal structure of the fabric between the nondeformed state and a sheared state of woven fabrics. Chowdhury et al [7] use micro-CT to nondestructively image, develop, and validate the structure-property relationships for textile carbon fiber polymers.…”