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Variables, Data, and Sampling
Published in Shanzi Ke, Beyond Capital and Labor, 2018
In contrast, the textile-apparel industries have mature products and have experienced more discrete technological progress. This industry group is essentially a recipient of new technologies developed by capital goods industries (Toyne, Arpan, Ricks, Shimp, and Barnett 1984). All notable technological changes in the industry, from innovation of newer machinery such as open end spinning, air jet and water jet shuttleless weaving to automation in textile mills and computer aided design in apparel plants, are initially made by capital goods industries. Final products of this industry do not make perceptible technological contribution to other segments of the economy. Besides the technology embodied in new or upgraded equipment, proportionally less investment has been devoted to technological progress. The textile manufacturing process is believed to bear many similarities to many nondurable consumer goods industries (Pack 1987).
Industrial Wastewater Treatment
Published in Subhash Verma, Varinder S. Kanwar, Siby John, Environmental Engineering, 2022
Subhash Verma, Varinder S. Kanwar, Siby John
Textile mills produce cotton, wool and synthetic fibres. The desizing, scouring, bleaching, mercerizing, dyeing and printing operations of cotton mills generate liquid wastes to the tune of 3000m3/day. The pH value of cotton textile waste is 8 to 10, and 3 to 5 from a synthetic fibre unit. Primary treatment consists of segregation, recovery, recycling, screening, neutralization with lime, equalization, coagulation and clarification.
Clothing for leisurewear with fashionable and functional wool fabrics
Published in Gianni Montagna, Cristina Carvalho, Textiles, Identity and Innovation: In Touch, 2020
B. Reis, R. Miguel, L.S. Ribeiro, M. Pereira, J. Carvalho
Technology plays an increasingly important role in how a fabric is presented as a structural fabric. The rising cost of fabric production has pushed textile mills to focus on fewer different fibre contents and fabrics, finishing them in ways that expand their function, especially structural fabrics. The designer can select one fibre content and fabric, and have that one fabric fulfil several structural functions in a design (Baugh, 2011).
The effect of technology driven mergers and acquisitions on firm performance in the U.S. textile industry
Published in The Journal of The Textile Institute, 2023
The M&A cases are selected based on the general criterion that the acquiring company is headquartered in the United States and owns less than 50 percent of the target firm prior to the acquisition and owns more than 50 percent of the target firm after the acquisition (see Appendix A). Companies with Standard Industrial Classification (SIC) codes falling in the following categories are incorporated into the dataset: Textile Mill Products (2200–2299); Plastics, Materials, Synthetic Resins, and Nonvulcanizable Elastomers (2821); Manmade Organic Fibers, Except Cellulosic (2824); and Chemicals and Chemical Preparations (2899). In addition to the primary textile mill products SIC codes (2200–2299), three additional codes from the Chemical Sector are added to the sample because they include chemical-based textile firms that use different SIC codes (e.g. The DowChemical, Dupont). To ensure that the selected firms among the SIC codes outside of textile mill products (2200–2299) are textile-related firms, a text filter on “Acquirer full business description” in the database is applied to reflect one of the following keywords: “fiber,” “polymer,” “textile,” “yarn,” “woven,” and “non-woven.”
A novel method for reducing yarn hairiness with dynamic and static friction rollers on the yarn guide
Published in The Journal of The Textile Institute, 2023
Ziyi Su, Chong Gao, Yingcun Liu, Ze Chen, Weilin Xu, Jian Fang, Duo Xu, Keshuai Liu
To experimentally evaluate the improvement of various yarns spun with dynamic- and static-friction rollers, the spinning apparatus was constructed of nitrile butadiene rubber and installed on the yarn guide of a Tonghe TH578 ring-spinning frame in the standard workshop of Anhui Huamao Textile mill (Figure 7a). The friction roller position parameters are illustrated in Figure 7(b); specifically, the diameters of the friction roller were 20, 25, and 30 mm, and the contact lengths between the staple strand and the surfaces of the friction roller were approximately 10.5, 13.1, and 15.7 mm (the contact arc was approximately 60°; see Figure 7(b). For consistency with the theoretical analysis discussed earlier, dynamic- and static-friction rollers were applied in the spinning experiment. The dynamic-friction roller rotated synchronously with the staple strand motion under friction (Figure 7c), whereas the static-friction roller remained stationary without influencing the staple strand motion.
Respiratory symptoms and their association with exposure to respiratory dust among indigo-dyed cotton workers
Published in Archives of Environmental & Occupational Health, 2022
Ratanee Kammoolkon, Nutta Taneepanichskul, Surasuk Taneepanichskul
Several studies reviewed the effects of occupational respiratory dust (RD) and revealed that emission from cotton-fabric weaving may be causing the symptoms.24,25 Phakthongsuk et al. recruited cotton-fabric sewing workers in Thailand and found that the mean RD concentrations were 0.52 ± 0.06 and 0.34 ± 0.09 mg/m3 through personal sampling and using an elutriator.3 Juliana et al. demonstrated that the mean cotton dust (PM10) exposure among textile mill workers reached 95.43 ± 45.78 μg/m3.25 Furthermore, Gupta et al. mentioned that concentrations of PM2.5 and PM10 in textile dyeing factories were higher than the standards implemented in India and the WHO, respectively, for pollution control. Such emissions were harmful to health and displayed very positive relationships with colds, coughs, bronchitis, asthma, and COPD.26 In addition, Karakatsani et al. conducted a study in Europe and showed that particulate matter concentrations (an increase of 0.6%–0.7% on average) were positively associated with respiratory symptoms.27