Wyniki wyszukiwania - BazTech

Ograniczanie wyników

2 2015

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: interlining fabric

Sortuj według:

Ogranicz wyniki do:

Impact of Dry Cleaning on the Electromagnetic Shield Characteristics of Interlining Fabric

Šaravanja B, Malarić K, Pušić T., Ujević D

Fibres & Textiles in Eastern Europe

2015

Vol. 23, no. 1 (109)

104--108

The research deals with the protective properties of sewn interlining fabric (IF) intended for pockets of jackets, trousers and other garments in order to protect the user from the harmful effects of microwave radiation from mobile devices. The IF was produced from polyamide filaments coated with copper. Measurements of the electromagnetic shielding effectiveness of the face and reverse side of the IF were made at frequencies of 0.9, 1.8, 2.1 and 2.4 GHz, which were repeated after the dry cleaning process and also following ironing in 10 cycles. Surface modification of the IF tested was examined by scanning electron microscopy - SEM. The results showed a complete loss of material protective properties after ten dry-cleaning and ironing cycles. Damage to the surface copper layer that allowed the passage of electromagnetic micro waves in the fabric cycles was also confirmed by SEM micrographs.

Badania dotyczą właściwości wszywanych tkanin podszewkowych przewidzianych dla kieszeni spodni, marynarek i innych ubiorów zabezpieczających użytkownika przed szkodliwym działaniem promieniowania mikrofalowego telefonów komórkowych. Tkaniny podszewkowe wyprodukowano z włókien poliamidowych pokrytych miedzią. Zbadano pochłanianie fal elektromagnetycznych przez przygotowane próbki, przy czym różnicowano obydwie strony w stosunku do źródła promieniowania. Przy badaniach stosowano częstotliwości 0.9, 1.8, 2.1 i 2.4 GHz. Badania prowadzono przed i po 10 suchych praniach połączonych z prasowaniem. Wyniki badań wskazują na całkowitą utratę właściwości ekranujących przez materiał po 10 suchych praniach z prasowaniem. Badania tłumienia potwierdzono mikrofotografiami SEM.

Shield Effect Of Functional Interlining Fabric

Šaravanja B., Malarić K., Pušić T., Ujević D.

Autex Research Journal

2015

Vol. 15, no. 2

93--98

Electromagnetic interference (EMI) have become very serious in a variety of different electronic equipments, such as personal computers (frequency at several GHz), mobile devices (0.9 – 2.4 GHz) and similar. This imposes the need for setting boundaries for EM emission of electric and electronic devices in order to minimize the possibility of interference with radio and wireless communications. Functional textiles can offer protective properties against EM radiation. The aim of this study is to investigate the degree of protection against EM radiation provided by polyamide copper-coated interlining fabric before and after dry cleaning treatment. EM protection efficiency of the interlining functional fabric is explored on both sides at the frequencies of 0.9; 1.8; 2.1 and 2.4 GHz. The results obtained have shown that the interlining fabric has good protective properties against EM radiation, but after dry cleaning, treatment reduction is observed. Scanning electron microscopy micrographs of the interlining surface confirms shield effect decline due to degradation and firing of the copper layers during the process of dry cleaning.