INFLUENTA STRUCTURII SI A MATERIEI PRIME ASUPRA PROPRIETATILOR MECANICE ALE TRICOTURILOR DIN BATATURA

Autor/autori: Ing. Crina BUHAI, Conf. univ. dr. ing. Mirela BLAGA, Conf. univ. dr. ing. Dorin DAN, Costea BUDULAN

Rezumat: Obiectivul acestei lucrari este cercetarea proprietatilor mecanice ale unor tricoturi din batatura, in functie de materia prima utilizata si de structura acestora. Programarea tricoturilor s-a realizat pe statia de programare M1plus iar tricoturile au fost executate pe masina rectilinie electronica de tricotat din batatura Stoll CMS 530 E 6.2. Structurile tricoturilor sunt glat, interlock, fang si semifang, executate fiind din trei tipuri diferite de materii prime: din fibre naturale (bumbac), fire artificiale (viscoza) si chimice (poliester). Rezultatele cercetarii arata ca proprietatile mecanice ale tricoturilor sunt influentate atat de natura firelor cat si de caracteristicile de structura, cum sunt grosimea si desimea ochiurilor pe cele doua directii. Testele de pilling, abraziune si extensibilitate releva ca tricoturile cu valori mai mari ale desimii au proprietati mecanice superioare.

Cuvinte cheie: tricot, proprietati, pilling, abraziune, extensibilitate

Abstract: This paper focuses on the study of the mechanical properties of different weft knitted fabrics depending on the raw material and knit structure. The programs were designed on M1 pattern station and the knitted fabrics were produced on Stoll CMS 530 E 6.2 weft knitting machine with four different structures (single jersey,interlock, full-cardigan and half-cardigan), using three different types of raw materials: natural yarns (cotton),artificial yarns (viscoze) and chemical yarns polyester). Research results show that the mechanical properties of knitted products are not only influenced by the nature of raw materials, but also by the structures characteristics such as thickness and stitch density. The knitted fabrics were subjected to some tests as: pilling, abrasion and extensibility. The research results show that the fabrics with a higher stich density expose better mechanical properties.

Keywords: knits, properties, pilling, abrasion, extensibility

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