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Decision Support Systems for Textile Manufacturing Process with Machine Learning
Published in Kim Phuc Tran, Machine Learning and Probabilistic Graphical Models for Decision Support Systems, 2023
Zaohao Lu, Zhenglei He, Kim Phuc Tran, Sebastien Thomassey, Xianyi Zeng, Mengna Hong
The investigations and applications of the related algorithms and computational complexity theory are very popular in the textile manufacturing industry with regard to the multi-criteria decision-making (MCDM) that is feasible to approach the Pareto optimal solutions. Among these, evolutionary algorithms such as genetic algorithms (GA) and gene expression programming (GEP) are the ones that are most often taken into consideration in previous studies in the textile sector. The authors of21 schedule the flow-shop of a fabric chemical finishing process aiming at minimal make-span and arresting time of machine simultaneously using multi-objective GA. The author of22 searched optimal solutions about the processing parameters including solution concentration, applied voltage, spinning distance and volume flow rate, to optimize the electrospinning process performance in terms of fiber diameter and its distribution. The electrospinning process parameters were mapped to the performances by the GEP model, and a MCDM method was proposed based on GA to find the optimal average fiber diameter and its distribution. The authors of23 proposed a nonlinear integer programming framework on the basis of GA to globally optimized the textile dyeing manufacturing process. The results of their case study presented the applicability and suitability of this methodology in a textile dyeing firm and exactly reflected the complexity and uncertainty of application challenges in the multi-criteria decision-making in the textile industry.
The Chemical Technology of Wool Finishing
Published in Menachem Lewin, Stephen B. Sello, Handbook of Fiber Science and Technology: Chemical Processing of Fibers and Fabrics, 2018
Trevor Shaw, Max A. White, L. Benisek, M. A. Rushforth, J. R. Christoe, I. M. Russell
Chemistry now plays a significant role in wool finishing. Scouring, carbonizing, setting, shrink-proofing, insect proofing, flame retardant, and many other processes require a sound understanding of both the chemistry of the wool fiber and the process itself. Chemical finishing, however, is only half the story in the finishing of wool fabrics. Mechanical finishing to develop the handle, drape, and surface characteristics of the fabric is at least as important as chemical or wet finishing. More often than not, these two broad streams of wool finishing are inextricably entwined in the finishing of wool fabrics to meet the aesthetic, durability, and performance levels demanded by the consumer. Readers interested in the mechanical finishing of wool are referred to several texts [6, 7] and reviews [8, 9] on the subject.
Using ERGOCHECK for Pre-mapping Risk
Published in Daniela Colombini, Enrico Occhipinti, ERGOCHECK for a Preliminary Mapping of Risk at Work, 2020
Daniela Colombini, Enrico Occhipinti
In these processes, the skins are subjected to mechanical processing to dry, stretch and soften them before the chemical finishing phase. The processes are partly wet and partly dry. Wet processes include (a) sammying, (b) vacuum drying, (c) overhead chain drying, (d) rapier oven drying and (e) vertical frame drying. Dry processes include (a) staking, (b) dry milling and (c) dry buffing.
Investigation on damage behaviors of cotton fabric in different fabric motion patterns during tumble-drying process
Published in Drying Technology, 2023
Xinchen Yu, Ying Cui, Xuemei Ding
It is indicated that tumble drying can be applied to improve the softness of fabrics after laundering process. As shown in Figure 6, the values of softness increased as the drying cycles increased. Compared to the control sample, the values have grown by 4.2–17.4%. Because softness plays a significant role in determining clothing comfort, a great number of recent studies dedicated in softening finishing of fabrics.[26] The main methods include mechanical finishing, chemical finishing and combination of the two. The mechanical finishing method is to rearrange the fiber structure and enhance the kneading action among fibers or yarns by means of mechanical treatments such as flanging, shearing and sand washing, so as to eliminate the internal strain accumulated in the manufacturing process. As a result, softness of the fabric can be improved. The complicated and repeated mechanical actions that fabrics suffered during the tumbling process are just in accordance with these mechanical treatments. Fabric softness depends on fabric weave, yarn structure and fiber structure, while fiber structure is determined by the orientation degree of macromolecular chain and bonds between molecular chains. As discussed in smoothness appearance and dimensional stability, the continuous water loss and mechanical action during the tumble-drying process can affect fiber structure, leading to the movement and recombination of molecular chains; then, improve fabric softness.
UHMWPE textiles and composites
Published in Textile Progress, 2022
Ashraf Nawaz Khan, Mohit Gupta, Puneet Mahajan, Apurba Das, R. Alagirusamy
The prolonged exposure of UHMWPE fibres to weathering conditions such as humidity, sunlight, and temperature variation initiates oxidative chain degradation. Hydroperoxides are formed on oxidative degradation and subsequently decompose to form the carbonyl compound. Long-term exposure causes a deterioration in the mechanical properties and it is possible in an artificially-simulated natural environment to model the ageing effect on the physical and chemical properties of the UHMWPE fibres in a very short time. SAXS a non-destructive technology is simple to apply and was used to characterise fibre defects over time (Li et al., 2012). The simultaneous variation in temperature and moisture has a more-deteriorating effect on the mechanical properties of the composite laminates, and this is known as hydrothermal ageing. The effect of hydrothermal ageing can be minimised through the introduction of hydrophobicity to the composite materials with the help of suitable chemical-finishing treatment of the FRCs (Lin, Zhou, & Dai, 2002).
Part surface quality improvement studies in fused deposition modelling process: a review
Published in Australian Journal of Mechanical Engineering, 2022
Mohammad Taufik, Prashant K. Jain
It is clear from the above-presented literature review that the use of CNC machines (Pandey, Venkata Reddy, and Dhande 2006; Kulkarni and Dutta 2000), as post-finishing set-ups, seems a very feasible alternative solution (Townsend and Urbanic 2011, 2012). However, the generation of an inner defect, location error and finishing of small dimensions are the major limitation associated with the CNC-assisted post-finishing processes. On the other hand, the barrel (Boschetto and Bottini 2015) and chemical finishing (Galantucci, Lavecchia, and Percoco 2010) processes improved the part surface finish significantly. However, in these processes, the control over the flow of finishing media is partial. Due to this reason, the repeatability is very low and hence uneven finished surfaces at different locations may be observed after the finishing process. Therefore, the current research trend supports the use of commercial CNC machines suggested by different authors as it has added the advantage of high repeatability and control of tool path. Moreover, CNC machines also enable the development of new and easy post-processing strategies by adding a new feature on existing machines. Due to several added advantages of CNC machines, researchers developed a CNC assisted finishing processes for FDM built parts and they have been suggested to develop with a focus on the control of different post-finishing issues as presented in the above section.