Wyniki wyszukiwania - BazTech

1

Development of Antimicrobial and Antistatic Textile for Industrial Air Management Systems

Repon Md. Reazuddin, Gofman Rasa, Ragaišiene Audrone, Mikučioniene Daiva, Milašius Rimvydas

Fibres & Textiles in Eastern Europe

|

2023

|

Vol. 31, no. 4

75--82

EN

Textile air management systems are used in modern buildings to improve overall indoor air quality. During use and storage, industrial textiles are negatively affected by microbes. Adding biocide to synthetic fibres can control the detrimental effects of antimicrobial finishing on textiles. Antimicrobial textiles have seen a rapid increase in demand due to consumers’ concern over hygiene and active lifestyles as well as with the aim to improve overall functionality. An antimicrobial treatment with a long lifespan, that is, resistant to washing, is presented in this paper. A new commercial antimicrobial product named Si Bac-Pure was used in woven polyester fabrics to treat them against bacteria. The antimicrobial activity was measured after twenty washing and drying cycles. Good antimicrobial and antifungal activity is produced in treated fabrics after treatment with the stated finishing agents. The antimicrobial treatment has significant antistatic properties that are important for industrial air management systems.

2

Durable Wash-Resistant Antimicrobial Treatment of Knitted Fabrics

Krisciunaite Jolita, Kalendraite Brigita, Ragelienė Lina, Merkelyte Evelina, Mikucioniene Daiva

Autex Research Journal

|

2022

|

Vol. 22, no. 4

373--382

EN

Antimicrobial finishing is increasingly used in textile products to increase their functionality. Antimicrobial properties became extremely important during the COVID-19 situation. The main problems faced by antimicrobial finishing are nontoxicity and durability (wash-resistance) of antibacterial activity. Also, it is important to determine whether the antimicrobial finishing changes comfort properties, such as air permeability. This paper deals with the durability of antimicrobial treatment, that is, resistance to washing, and effect on the structural changes that may have influence on the comfort properties, such as permeability to air. Knits of various raw compositions were antimicrobial-treated with the new commercial antimicrobial product, Si Bactericidal (Smart Inovation, Portugal). After the antimicrobial treatment, knitted specimens were washed 50 times and changes in their structural parameters, air permeability, and antimicrobial activity were measured. It was found that the mentioned antimicrobial treatment gives very good antimicrobial activity to the treated fabric and is wash-resistant and long-lasting. Also, it does not change dimensions and permeability to air of the treated fabrics with some exceptions of cotton-based knitted structures.

3

Influence of Raw Composition of Plain Plated Knits on their Antimicrobial Characteristics

Mickevičienė A, Mikučioniené D, Ragelienë L

Fibres & Textiles in Eastern Europe

|

2014

|

Vol. 22, no. 5 (107)

59--64

EN

This paper deals with the determination of the antimicrobial efficiency of plain plated weft knits antimicrobial treated with commercial silver chloride (AgCl (iSys Ag, Germany)) dispersed in a reactive organic-inorganic binder (iSys MTX, Germany). Antimicrobial treatment was performed by the exhaustion method. The morphology of untreated and antimicrobial treated knits was analysed using Scanning Electron Microscopy (SEM) to confirm the presence of silver particles on the fibre surface. The antimicrobial activity was estimated using the Agar diffusion Test (according to standard EN ISO 20645:2004 (qualitative method)) and antibacterial finishes in a Textile Materials Test (according to the AATCC 100–1999 standard (quantitative method)). Two strains of bacteria - E. coli and S. aureus were used in this research. The results obtained proved that the fibre type and raw composition have an important influence on the relationship between the fibre surface and antimicrobial effect of the material formation and optimal antimicrobial efficiency obtained. It was found that pure fibre cotton and man-made bamboo knits had the highest antimicrobial activity for both types of bacteria (E. coli and S. aureus). Meanwhile knits of 100% polyester fibre and blended knits containing polyester fibre had an insufficient effect on the bacterial growth. It was also established that antimicrobial treated knits with the same fibre composition and very similar total linear density of folded yarns but with a different number of folded yarns in the structure have different antimicrobial activity. This is because the higher number of folded yarns in the knitted loop has a larger surface area and, herewith, larger antimicrobial acting area.

PL

W artykule oceniano właściwości antymikrobowe dzianin lewo-prawych platerowanych nasycanych komercyjnym chlorkiem srebra. Chlorek srebra tworzył zawiesinę w reaktywnym organiczno nieorganicznym związku (iSysMTX). Morfologię dzianin przed i po obróbce badano za pomocą SEM dla potwierdzenia obecności cząstek srebra na powierzchni włókien. Antymikrobową aktywność oceniano jakościowo stosując dyfuzyjny test z użyciem agaru oraz ilościowo badając zaimpregnowany materiał włókienniczy. Stosowano dwa szczepy bakterii E.coli i S.aureus. Stwierdzono że antymikrobowe właściwości zależą od typu włókna i składu surowcowego. Okazało się, ze najlepsze właściwości antymikrobowe posiadają dzianiny z czystych włókien bawełnianych oraz włókien chemicznych z surowca bambusowego. Natomiast dzianiny wykonane z 100% włókien poliestrowych i mieszanek mają gorsze właściwości antybakteryjne. W przypadku dzianin wykonanych z włókien o porównywalnej masie liniowej jednorodnych lub skręconych z kilku przędz to te ostatnie ze względu na zwiększoną powierzchnię mają lepsze właściwości antymikrobowe.

4

Effect of Antimicrobial Air Filter Treatment on Bacterial Survival

Miaśkiewicz-Peska E., Łebkowska M.

Fibres & Textiles in Eastern Europe

|

2011

|

Vol. 19, no. 1 (84)

73-77

EN

Woven air flters made of polypropylene were examined for bacterial survival. The test strains belonged to gram-positive and gram-negative bacteria. An antimicrobial agent, silver nitrate (AgNO3), was added to the fltering material after the production cycle and tested for its ability to prevent microorganisms from flter colonisation. Silver emission from the fltering material was also tested. It was found out that antibacterial flter treatment resulted in an evident reduction in living bacterial cells. The presence of silver ions in the air surrounding the incubation column was established.