Penelitian ini bertujuan untuk membandingkan hasil pengukuran diameter guna mengukur nilai konstanta diameter benang secara teori dan pengolah citra. Hubungan antara variabel diameter benang dan nomor benang secara teoritis dirumuskan dalam tex . Perbandingan hasil pengukuran konstanta diameter benang secara eksperimen dari beberapa sampel benang telah didapatkan. Telah ditemukan suatu nilai konstanta hubungan antara diameter benang dengan nomor benang dalam Tex secara eksperimen.
Abstrak Pada penelitian ini telah dikembangkan sebuah produk pakaian anti radiasi unisex sports wear menggunakan teknologi plasma pijar korona elektroda tip-plane. Plasma pijar korona dibangkitkan dengan listrik tegangan tinggi serta menggunakan elektroda asimetri (lancip dan plat).Pembuatan pakaian anti radiasi menggunakan bahan rajut yang telah diplasma sertadilapisi dengan tinta konduktif. Hasil studi memperlihatkan bahwa metode pembuatan pakaian dengan plasma pijar korona telah berhasil mengurangi radiasi gelombang elektromagnetik. Kata kunci: plasma pijar, pakaian unisex sportswear, elektroda tip-plane, anti radiasi Abstract This paper describes the making of an anti-radiation smartphone unisex sportswear. The anti-radiation patch was developed by first modifiying the surface of the textile using atmospheric pressure plasma technology. The plasma corona discharge is generated by using a high voltage electricity withasymmetrical electrodes (tip and plane). The treated patch was than coated with graphite based conductive ink. The result of thisresearchindicates that an anti-radiation clothe patch was succesfully shield an electromagnetic radiation from a smartphone. Keywords: plasma discharge, unisex sportswear, tip-plane electrode, electromagnetic shielding
This work was aimed to study the influence of plasma on changes in functional groups of a wound dressing called ‘kain kassa’ which immersed in essential oil from ginger (Zingiber Officinale Rosc). In this work also analyze the differences of wound dressing between with or without using the help of plasma. The Wound dressing and the essential oil of ginger were selling in the market, the wound dressing doesn’t have information about fiber which form itself. So, Dissolution test and additional test were carried out. Then, The result of the differences of wound dressing was analyzed with Fourier Transform Infra Red (FTIR), the plasma treated has higher absrobance of O-H and C-H at wavenumber 3350 cm-1 and 2930 cm-1. However at 1700 cm-1 C=O, the wound dressing without plasma has higher absorbance than wound dressing with plasma
Pada penelitian ini telah dikembangkan sifat tahan api pada bahan tekstil kain katun dengan menggunakan resin tahan api dan ekstrak daun bayam. Zat tahan api diaplikasikan pada kain katun dengan menggunakan metode plasma bertekanan atmosfir dan pad-dry-cure. Kain katun yang digunakan merupakan kain kapas yang telah mengalami proses pengelantangan dan merserisasi. Pada penelitian ini telah dilakukan tiga jenis metode, yaitu metode pad-dry-cure pada zat resin tahan api dengan pra-perlakuan plasma bertekanan atmosfer, metode perendaman pada zat resin tahan api dengan pra-perlakuan plasma bertekanan atmosfer, dan metode perendaman pada ekstrak daun bayam dengan pra-perlakuan plasma bertekanan atmosfer. Penelitian menunjukan bahwa ada peningkatan sifat tahan api pada kain katun yang telah diberikan perlakuan. Penilaian sifat tahan api diuji dengan menggunakan metode uji standar tahan api cara vertikal ASTM D6413-08. Pada penelitian ini telah dilakukan perlakukan plasma bertekanan atmosfer dengan variasi waktu 4 menit dan 8 menit. Hasil penelitian menunjukan bahwa kain katun dengan perlakuan metode perendaman pada ekstrak daun bayam dan pra-perlakuan plasma bertekanan atmosfer memiliki sifat tahan api yang paling baik diantara metode lainnya. Telah ditemukan pula pada studi ini bahwa waktu perlakuan plasma 4 menit berpengaruh terhadap sifat tahan api kain katun.
Textile materials generally have intrinsic properties, such as flexibility, light volume density, strength, tenacity, comfort and softness. Based on these characteristics, the textile material is generally given a special additional function, such as hydrophobic or hydrophilic properties. The addition of these special functions to the textile industry is generally using conventional wet methods that require more energy and water as well as more chemicals need and expensive price. Plasma technology is one of the dry process technologies and it can reduce the use of chemicals that can pollute the environment. This article describes the application of atmospheric plasma corona discharge technology in the textile sector, especially its use in modifying wetting properties on the surface of polyester cotton (TC) 70%. The results showed that by varying the time of plasma treatment on 70% TC cotton polyester fabric with density of weft and warp respectively 70 strands / inch and 60 strands / inch we found that there was a change in the wetting properties of the fabric with increasing hydrophilic properties of the fabric. SEM images show the example of morphology of cotton polyester fabric surfaces treated with time of exposure by plasma at one minute (60 s) at 3 kV of output voltage as the optimal exposure time and applied voltage to enhance the wetting properties.
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