Multifunctionality of Thermal Protective Layer Interchanging Double Cloth Conditioned by Influential Parameters

Abstract

The proportion of woven fabrics in the broad field of protective textiles is extremely high. By various procedures (surface treatments, fabric lamination, composite production), fabric properties that meet the requirements defined by standards are achieved. However, simultaneously, these procedures cause negative effects in the form of fabric thickness, stiffness, impermeability, non-breathability, and thus, discomfort. Therefore, there are valid and justified reasons to approach the design process of making such woven fabrics using more complex construction solutions—layer interchanging double cloth. In addition, by applying fibres with integrated desired properties and other structural fabric parameters, it is possible to influence the achievement of the properties of multi-purpose multilayer fabrics for protection, which is the aim of this research. The application and combination of aramid and modacrylic/cotton fibres and use of different yarn fineness resulted in different intensities of protection. The correlative values of mentioned parameters and thermal and thermo-physiological properties indicate their strong connection, and thus the effectiveness of the developed woven fabric samples.

Incorporating Variable Porosity into the Determination of Effective Permeability in Interchanging Double Cloth Woven Fabrics Using Darcy’s Law

“…Considering the very complex structure of this material, it is not possible to describe the morphological characteristics of the pores in a simple way, especially considering the fact that the pore system is expectedly very heterogeneous, and their mutual connection The choice of raw materials for the weft-aramid and modacrylic yarns-and their controlled change resulted in a complete aramid surface on the front of the fabric, while the reverse side is dominated by modacrylic yarns that ensure comfort on the back (next to the skin). This construction ensures satisfactory thermal protective properties [37] and high wearing comfort at the same time.…”

“…In its simplest form, the mathematical expression of Darcy's law is as follows [36]: Specific discharge (Darcy flux) is often referred to as the Darcy flux and it is not the velocity that the fluid traveling through the pores is experiencing [37]:…”

“…Specific discharge (Darcy flux) is often referred to as the Darcy flux and it is not the velocity that the fluid traveling through the pores is experiencing [ 37 ]: where q—specific discharge [m/s] and ∆p—pressure drop p 1 –p 2 .…”

Functional Properties of Nonwovens as an Insulating Layer for Protective Gloves

“…The nonwoven fabrics for protective gloves investigated in this study are used as the inner layer of protective gloves for protection against high temperatures during work [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 ].…”

Evaluation of the performance properties of modacrylic-cotton blended underwear fabrics manufactured for firefighters

“…When we look at the literature, it can be seen that in previous studies about knitted fabrics with modacrylic blends, the mixing ratio of modacrylic or the mixture of modacrylic fibers with other flame-retardant fibers has been examined. 5,10,14–28…”