DOI: 10.37421/2165-8064.2023.13.560
Wang Yanyan*, Xue Yuan, Chen Yourong and Chen Guofang
Using three kinds of colored fiber and one kind of gray fiber as raw materials, a four-primary-color coupling-superposition color mixing model is constructed by the method of coupling and superposition based on the color mixing model, color change can be controlled in the range of panchromatic gamut, and the digital precision control of hue, brightness, and chrominance can be realized. Based on the three-channel NC spinning principle, the three-channel spinning mechanism of multi-channel feeding speed ratio, primary color fiber mixing ratio, and forming yarn color was established. One hundred fifty-six colors of three series of the same brightness but different hue; same hue but different brightness; and same hue but different chrominance are selected from the full-gamut color mixing model for spinning yarn and fabric; then list the HSL values of blended yarn, the technological feasibility of producing color yarn based on full-color gamut mixing model and three-channel CNC rotor spinning platform is verified.
DOI: 10.37421/2165-8064.2023.13.561
Functional finishing of textile materials refers to the application of various chemical treatments or processes that enhance the performance and functionality of the fabric. This process involves treating the fabric with substances such as coatings, resins, or additives to impart specific properties like waterproofing, flame resistance, antimicrobial properties, or UV protection. While functional finishing plays a vital role in improving the technical aspects of textile materials, its impact on psychological aspects should not be overlooked. The feel and appearance of textiles can significantly influence an individual's emotional state and overall well-being. Psychologically, functional finishing can contribute to enhancing comfort levels, promoting confidence, and providing a sense of security. For instance, the application of moisture-wicking finishes in sportswear helps to keep the body dry, allowing athletes to perform better and boosting their confidence. Similarly, the addition of softeners and anti-static finishes in clothing can create a pleasant tactile experience, evoking feelings of comfort and relaxation.
DOI: 10.37421/2165-8064.2023.13.557
The application of stimuli-sensitive materials in smart textiles has revolutionized the field of wearable technology, offering exciting possibilities for functionality and interactivity. Stimuli-sensitive materials, also known as smart or responsive materials, are designed to respond to various external stimuli, such as heat, light, moisture, pressure, or electrical signals, by changing their physical or chemical properties. One of the key applications of stimuli-sensitive materials in smart textiles is in the area of temperature regulation. Thermo chromic materials, for example, change color in response to temperature fluctuations, allowing the fabric to visually indicate changes in body temperature or environmental conditions. This can be particularly useful in sportswear, where athletes can monitor their exertion levels or in medical garments, where changes in body temperature can be an important indicator of health.
DOI: 10.37421/2165-8064.2023.13.558
The antibacterial aspects of nanomaterials in textiles have gained significant attention due to their potential in combating microbial growth and improving hygiene. Nanomaterials, characterized by their unique properties at the nanoscale, have shown promising antimicrobial effects against a wide range of bacteria, including pathogenic strains. The origin of the antibacterial properties in nanomaterials lies in their high surface to volume ratio, which facilitates increased contact with bacteria and enhances their antimicrobial activity. Nanoparticles such as silver, zinc oxide, copper, titanium dioxide, and graphene oxide have been extensively studied for their antibacterial properties. These nanoparticles possess inherent biocidal properties or can be functionalized with antibacterial agents to further enhance their effectiveness. In textile applications, nanomaterials with antibacterial properties can be incorporated into fibers, fabrics, or coatings. One approach involves directly incorporating nanoparticles during the manufacturing process of fibers or yarns, ensuring a uniform distribution throughout the textile material. Another approach is to apply nanoparticle-based coatings onto the textile surface, forming a protective layer that inhibits bacterial adhesion and growth.
DOI: 10.37421/2165-8064.2023.13.559
The energetic performance assessment of a stenter system in a textile finishing mill plays a crucial role in evaluating its energy efficiency and overall sustainability. A stenter system is a vital component in the finishing process of textiles, where fabrics are stretched and dried to achieve desired characteristics. By conducting an energetic performance assessment, engineers and researchers can gain valuable insights into the system's energy consumption, losses, and potential improvements. Energy, also known as available energy, is a thermodynamic concept that quantifies the quality of energy within a system. Unlike traditional energy assessments that focus solely on energy consumption, energetic analysis considers both the quantity and quality of energy flows. This analysis provides a more comprehensive understanding of the system's performance, allowing for targeted improvements and resource optimization.
DOI: 10.37421/2165-8064.2023.13.560
Hermann Tchonang Ndogmo1*, Alidou Mohamadou2,5, Paul Nestor Djomou djonga2, Benjamin Bazie3 and Constantino Nguivoum Thea4
The aim of this work is to establish spinning equipment and conduct a metrological comparative analysis with traditional spindle methods and openend
industrial spinning. To achieve this, five selected artisans were tasked with producing yarn using both sets of equipment, using conventional
cotton fibers in roving form, followed by a comparative study with conventionally industrially produced yarn, using open-end industrial spinning..
Physical parameters such as twist, count, elongation, tensile strength, and tenacity were analyzed using USTER AUTOSORTER 5, USTER
EVENNESS TESTER 6, and AUTODYN II MESDAN instruments. We have obtained the following results for the designed equipments: twist 424
tr/min, count 15.24 tex, elongation 7.81%, tensile strength 3.77 N, and tenacity 25.92 cN/tex, compared to 437 tr/min, 14.33 tex, 8.38%, 3.13 N,
and 22.02 cN/tex for artisanal equipment. Morphological analysis revealed irregularity rate, size, fineness, imperfection count, and hairiness of
15.95%, 36.66, 19.33, 23, and 1262%, respectively, for the designed equipment, as opposed to 17.13%, 81.33, 29.4, 54.2, and 1919% for artisanal
equipment. Based on these results compared to yarn produced industrially, we can conclude that this equipment allows for the production of
industrially acceptable quality yarn, with a daily production capacity 13 times higher than that of traditional equipment.
Siroj Fayziyev*
This article is based on the theoretical justification for the development of energy saving projects and the main operating parameters for the implementation of the process of preparing high-density cotton seeds for storage. One of the issues of the program of economic development of the Republic of Uzbekistan is to increase the productivity of high-quality fiber and its implementation on the world market. The production of high-quality raw cotton fiber depends on the fact that the production process is organized on the basis of technical requirements. In particular, in the process of drying cotton in processing plants, it is important to reduce its moisture content and storage.
Imadegbor Franker Amen*, Bell Kasali Ademola, Nkeonye PO and Giwa Abdul Raheem
Squarylium dyes are organic dyes of intense flouresence properties typically in the red to near-infrared region obtained from squaric acid. Squarylium dyes were synthSquarylium dyes are organic dyes of intense flouresence properties typically in the red to near-infrared region obtained from squaric acid. Squarylium dyes were synthesized from aminothiophene which are low molecular weight compound with good electron donating properties. The molecular weight of the dyes ranges from 276 g/mol-434 g/mol with melting point of spanning from 314 °C–336 °C. The FT-IR of band of the squarylium dyes showed sharp absorption bands of 3224.1-3649.1 cm-1 corresponding to the N-H stretch functional group present in the molecule, the C=O group was seen between 1640.0 cm-1-1796.6 cm-1 and the N=C=S (isothiocyanate) functional group ranged from 2105.9 cm-1-2206.6 cm-1. The electrical conductivity measurements were obtained by employing a standard process using a programmable LCR meter at a frequency range of 200 hz-100000 hz and the result calculated using the formular σ =L/RA. The electrical conductivity of synthesized dyes were observed to be within the range of 10-5-10-8 Sm-1. The electrical conductivity of the dyes and aminothiophene substituted squarylium dyes lies within the range of electrical conductivity for semiconductor which is between 10-12 -10-2 Sm-1.
Tambizot Getachew Alemayehu*
Bast fibre dyeing process was common practice as the value addition of most bast fibres was demanded for various commercial and household
applications. In this research work, kusha fibre (which was extracted in our previous work) subjected to dyeing using direct, reactive, vat
and cationic dyes for the first time. The dyeing process was performed using concentrations 0.5%, 1%& 3% (W/W) dye to fibre with MLR
1:20. After dyeing process; performance of dyed fibre (dye absorbency measurement, colourfastness to washing, colourfastness to
rubbing, colourfastness to light) and tensile tests were conducted. The results revealed that; K/S value of all dyed kusha fibre
samples increases as the concentration of dyes applied increases, the colourfastness to washing of dyed fibres except the of direct
dyes were found good, in both dry and wet rubbing fastness, reactive dyed samples have overall good rubbing fatness performance over the
others, light fastness result shows it is good performance for all samples according to blue wool light fastness standard that exceeds 6. The
tensile strength and elongation of dyed samples showed slight decrement in both vat and direct dyed samples; whereas, the considerable
decrement was observed both in samples dyed with reactive and basic dyes as there is formation of covalent bond between fibre and dye
and acid medium of processing affected the tensile property respectively.
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