surattextiles.com

Journal of Industrial Textiles

This study showed an improvement in how functional groups activate on to the polymer surface by using the pen-type plasma treatment. These functional groups will graft on to the original polymer bonds and activate the surfaces of polymer products such as synthetic fabrics, films, and plastics. This research discussed the modifications of the hydrophilicity and conductivity in Polyamide 6 woven fabrics prior to and following the surface plasma treatment. First, without considering any processing, such as calendering, fabrics with the same denier but different numbers of filament were compared after the plasma treatment. The analysis of the experiment verifies that after the plasma treatment, the finer the filament the fiber has, the better improvements are obtained in the surface properties, such as hydrophilicity and surface resistivity. Next, after including the factor of calendering, the experiment also confirmed that the Polyamide 6 fabric processed with calendering exhibits better modification affects than those without it. In addition, the hydrophilicity modification result increases with irradiation time for fabrics treated with pen-type plasma, where the hydrophilicity modification benefit improves by 20–30%. Moreover, fabrics coated with poly-3, 4-ethylenedioxythiophene (PEDOT) are tested by washing. It has been confirmed that the washing resistance of the conductivity benefit appears to improve with the number of calendering times and irradiation time. The spectra show formation of COOH-groups (3300–2400 cm–1), after impregnated acrylic acid process, and also show formation of O–H (alcohol) groups (3650–3200 cm–1), after PEDOT coating.

Study on the electrical and surface properties of Polyamide 6 woven fabrics using pen-type radio frequency plasma treatment

The aim of this study was to determine the pull-out properties of the para-aramid woven fabrics. Para-aramid Kevlar 29® (K29) and Kevlar 129® (K129) woven fabrics were used to conduct the pull-out tests. K29 and K129 woven fabrics had high and low fabric densities, respectively. For this reason, yarn pull-out fixture was developed to test various K29 and K129 fabric sample dimensions. Data generated from single and multiple yarn pull-out tests in various dimensions of K29 and K129 woven fabrics included fabric pull-out forces, yarn crimp extensions in the fabrics, and fabric displacements. Yarn pull-out forces depended on fabric density, fabric sample dimensions, and the number of pulled ends in the fabric. Multiple yarn pull-out force was higher than single yarn pull-out force. Single- and multiple-yarn pull-out forces in K29 (tight fabric) were higher than those of K129 (loose fabric). Yarn crimp extension in K29 and K129 fabrics depended on crimp ratio in the fabrics and fabric density. High crimp ratio fabrics showed high yarn crimp extension compared to that of the low crimp ratio fabrics. Long fabric samples also showed high yarn crimp extension compared to that of the short fabrics. Fabric displacement in K29 and K129 fabrics depended on fabric sample dimensions and the number of pulled yarns. Long fabric samples showed high fabric displacement compared to that of short fabric samples. Fabric displacement from multiple yarn pull-out test was also higher than that of the single yarn pull-out test. It was considered that fabric pull-out properties can play important roles for absorption of impact load due to the yarn frictions in the fabric structures.

Experimental determination of yarn pull-out properties of para-aramid (Kevlar(R)) woven fabric

Nano-zirconium-oxide (nano-Zr-oxide) and nano-silver-oxide (nano-Ag-oxide) were in situ synthesized and deposited into cotton gauze fabrics by reduction of zirconium oxychloride or silver nitrate solutions, in the presence of fabric samples using sodium hydroxide-hydrogen peroxide mixture solution at pH 9.5. The resulted homogenous distribution of nano-Zr-oxide and nano-Ag-oxide inside the fabric were characterized by scanning electron microscopy coupled with energy dispersive X-ray (SEM-EDX), transmission electron microscopy (TEM) for fabric cross-section. The formed nano-Zr-oxide and nano-Ag-oxide in the prepared solution was characterized by TM, X-ray diffraction (XRD), and UV visible spectroscopy. Antibacterial activity of prepared samples was evaluated using reduction rate % in bacterial count (RBC %) against gram-negative bacteria (Salmonella typhimurium) and gram-positive bacteria (Staphylococcus aureous), while antifungal activity of prepared samples was evaluated according to clear inhibition zone diameter against filamentous fungus (Candida albicans), as well as nonfilamentous fungus (Aspergillus flavus) the data show that, the reduction rate of colony count of treated fabric samples with nano-silver oxide against gram positive and gram negative bacteria were 99.9% and 97% respectively. Gave 99.9% and 97% reduction in colony count against gram-positive and gram-negative, espectively, while sample fabrics treated with nano-Zr-oxide gave 98% and 95% reduction rate in colony count against gram-positive and gram-negative, respectively. Antifungal activity of fabric treated with nano-silver oxide was greater than that of fabrics treated with nano-Zr-oxide. Skin irritation test of treated fabric samples was evaluated and the data show that, there is no skin irritation was observed on the skin of tested rabbit. Skin wound of tested rabbit was healed after 4 days sample application. All prepared samples were durable to wash and killed the bacteria even after 30 laundering wash cycles.

Nano-zirconium oxide and nano-silver oxide/cotton gauze fabrics for antimicrobial and wound healing acceleration

In many problems from the field of textile engineering (e.g. fabric folding, motion of the sewing thread), it is necessary to investigate the motion of the objects in dynamic conditions, taking into consideration the influence of the forces of inertia and changing in the time boundary conditions. This article deals with the model analysis of the motion of the flat textile structure using Lagrange’s equations with constraints. The motion of the objects is under the influence of the gravity force. Lagrange’s equations have been used for discrete model of the structure. Numerical considerations presented in this article should give answer about practical usefulness of the Lagrange’s equations for solving the dynamic problem.

Lagrange's equations with constraints in model applications from the field of textile mechanics

The performance of ultraviolet (UV) protection, antimicrobial activity, and self-cleaning characteristics of nano titanium dioxide (TiO2) with acrylic binder were assessed on the cotton fabric using pad-dry-cure method. Titanium iso-propoxide was used as precursor with two different mediums of water and ethanol to synthesize nano-sol by sol-gel technique. The synthesized nano-sol-gel was then characterized by using Fourier transform infrared (FTIR) spectroscopy, particle size analyzer (PSA), X-ray powder diffractometry (XRD), and scanning electron microscopy (SEM). The nano TiO2 finished cotton fabrics were tested for ultraviolet protection factor (UPF), antimicrobial activity, self-cleaning action, and physical properties. The wash fastness of TiO2 nano finished cotton fabrics for 5th, 10th, 15th, and 20th washes was assessed and also their ultra protection factor values and the percentage reduction in bacteria in each stage were reported. The self-cleaning activity was assessed for 12 hours, 24 hours, and 48 hours duration by exposing coffee stain on the specimen fabrics to sunlight. The TiO2 nanoparticles had 12 nm when ethanol medium was used and 7 nm for water. The smaller nanoparticles had showed better results regards antimicrobial activity and self-cleaning. In case of UV-protection function it was found that the fabrics treated with 12 nm nanoparticles exhibit higher UPF values than the fabric treated with 7 nm nanoparticles. The durability of the imparted function was in the range of 32–36 washes for antimicrobial activity and UV-protection property.

Influence of nano titanium dioxide finish, prepared by sol-gel technique, on the ultraviolet protection, antimicrobial, and self-cleaning characteristics of cotton fabrics

India:Lignite tariff rise affects Surat textile processors

Germany:Cotton demand indicates economic revival in US - Bremen

Global:Global propylene prices remain stable to firm

UK:Trade fashion event Pure London in App way

Italy:CCSPET, a 100% Newlife fabric concept developed

Global:Asian PX & PTA trends rise, MEG stays stable

Mexico:Urgent need to upgrade plant technology in Textile Park

Anti Allergy, Anti Mite Nanometer Far Infrared Fiber Bedding Set Brings You A Warm Winter

inn developed nanometer far infrared fiber, and implemented the fiber into anti-allergy bedding sets with their mattress, mattress protector, blanket, etc.

YnFx introduces Price Forecast Report on nylon and polyester

The report provides close to 75 price forecast in the polyester chain and 45 price forecast in the nylon chain for three regions, namely Asia, USA and Europe. The report also contains objective analysis of the likely trends in the upstream, crude oil and naphtha through the downstream petrochemicals, fibre intermediates, chips, filament yarns and staple fibre.

Big Lots’ home a Q1 “key driver”

Columbus, Ohio – For the third consecutive quarter, home was a leading performing category at Big Lots in the first quarter period, the closeout retailer reported today during its earnings call.

Costco sees double-digit increases in net sales for Q3

Issaquah, Wash. -- Costco Wholesale Corporation experienced strong sales gains in its third-quarter and year-to-date results, with double-digit increases in both.

At Jo-An Stores, sewing businesses still dominant in Q1

Hudson, Ohio – While home decorating fabric sales were still “slightly” negative at Jo-Ann Stores during its first quarter, the fabric and craft retailer did see sewing-related business continue to dominate sales and grow in comp sales in the period.

Belk sees profit boost

Charlotte, N.C. — Regional department store Belk recorded a first quarter profit of $25.2 million, a significant increase from last year’s 1Q net income of $500,000.

Safavieh unveils new print and marketing effort via new catalogs

Port Washington, N.Y. -- As part of a comprehensive redesign of the company’s new print and web marketing efforts, upscale area rug house Safavieh is unveiling its first series of product and lifestyle catalogs and a soon-to-come revamped website for this fall.

Target in Toy Story 3 exclusive

Minneapolis – Target has launched an exclusive line of Toy Story 3 products ahead of the film’s June 18 unveiling in theaters.

Downlite expands U.S. manufacturing operation in West Coast

Cincinnati – Domestic bedding product manufacturer Downlite plans to expand its manufacturing capabilities with “an additional multifaceted project” in Phoenix, Arizona, according to the company.