PREDICTING THE RELATIONSHIP BETWEEN FIBER PROPERTIES AND YARN PROPERTIES

ABSTRACT

This article analyses the strength indicators of yarns in predicting the relationship between cotton fibre properties and yarn properties. Also, the results of the analysis are presented through tables and graphs.

АННОТАЦИЯ

В данной статье анализируются прочностные показатели пряжи при прогнозировании зависимости свойств хлопкового волокна от свойств пряжи. Также результаты анализа представлены в виде таблиц и графиков.

Keywords: cotton fiber, cotton yarn, card yarn, combed yarn, fiber mixture, yarn strength.

Ключовой слова: хлопковое волокно, хлопчатобумажная пряжа, кардная пряжа, гребенная пряжа, смесь волокон, прочность пряжи.

Introduction. In predicting the relationship between fiber properties and yarn properties, the recommendations of the SITRA Scientific Research Center of India were developed and standards were recommended depending on the types of cotton fibers [1, 2].

Material and methods.  The connection between fiber properties and yarn properties can be estimated by the CSP (COUNT STRENGTH PRODUCT) coefficient of yarns, which is called the maturity index of yarns and can be calculated using the following formula:

4-I-30%, 5-I-70% mixture has the highest average fiber length of 1.12, the specific tensile strength of the fiber is 26.58 sN/tex, [3, 4] the micronaire value of the fiber is 4.4, and the maturity coefficient is 2.0.

For card yarn

                     (1)

For combed yarn

    (2)

4-II-60%, 5-I-40% mixture has the highest average fiber length of 1.10, the specific tensile strength of the fiber is 25.7 sN/tex, the micronaire value of the fiber is 4.5, and the maturity coefficient is 2.0.

For card yarn

                     (3)

For combed yarn

    (4)

4-I-60%, 4-II-40% mixture has the highest average fiber length of 1.15, the specific tensile strength of the fiber is 25.82 sN/tex, the micronaire value of the fiber is 4.4, and the maturity coefficient is 2.0.

For card yarn

                       (5)

For combed yarn

                                                         (6) 

Research results. In predicting the relationship between fiber properties and yarn properties, yarn maturity indicators were determined and norms were recommended depending on the types of cotton fibers [5, 6]. The obtained results are presented in Table 1.

Table 1.

Variation of maturity indicators by mixture composition in predicting the relationship between fiber properties and yarn properties

When predicting the relationship between fibre properties and yarn properties, a histogram was constructed in Fig.1 based on yarn maturity indicators.

Composition of the mixture

Figure 1. Variation of maturity indicators by mixture composition in predicting the relationship between fiber properties and yarn properties 3.26-rasm.  - for the yarn;  - for combed yarn

Conclusion. When analyzing the maturity indicators of yarns in predicting the relationship between fiber properties and yarn properties, 1469 for card yarn in 4-I-30%, 5-I-70% mixture, 1689 for combed yarn, 4-II- 60%, 5-I-40% for card yarn 1434 for combed yarn, 4-I-60%, 4-II-40% for card yarn 1469 for combed yarn, 1689 for combed yarn.

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