#Textiles #CarbonFiber #TextileCoach Introduction: Carbon fibre, also termed “CF, “ is about 5-10 micrometres in diameter and is composed of 90 % carbon atoms in its mass. This fibre is produced by the carbonization of organic fibres. CF has various advantages like Low weight, High Strength, chemical resistance, high stiffness, low thermal expansion, and high-temperature resistance. Due to the above properties, CF has various applications like Military applications, Aerospac

#Gate #Tf_Gate #Tf_Gate_1991 #Textile #TextileCoach 1. Range of Maturity Ratio (M) of cotton is: 0 to 1 0 to 100 0.2 to 1.2 0.5 to 1.5 Ans: 3 2. If d is the diameter, the ratio of air flow through a fibre plug during fibre fineness measurement will be proportional to d d2 d4 1/d2 Ans: 2 3. If 6 slivers each having CV(%) of 6 are doubled, the CV(%) of the resultant sliver will be √6 6 12 25 Ans: 1 4. A 36s cotton yarn with a twist multiplier of 3.5 will have 18 TPI 21 TPI 30 T

#Gate #Textile #TextileCoach #Tf_Gate #SolvedPapers 21. The coarser fibers preferentially migrate To the surface of the yarn. To the core of the yarn. At random. Ans: 1 22. Longer and finer fibers require a card cylinder having Higher wire point density. Lower wire point density. Higher speed Ans: 1 23. On the scutcher the ratio of fan speed to beater speed required for synthetic fibers as compared to cotton fibers is Higher Lower Equal Ans: 1 24. On a good ring frame, the s

#Gate #Tf_Gate #SolvedPapers #Textiles #GatePaperswithSolutions #TextileCoach 1. During length measurement of Fibrograph 2.5% span length was found to be 25mm. it means. 2.5% of fibers clamped are 25mm in length. 2.5% of fibers clamped are longer than 25mm. 2.5% of fibers clamped are 25mm or longer. 2.5% of fibers clamped are less than 25mm. Ans: 1 2. The count of yarn is 20 Tex. It is equivalent to a yarn of 29.5 Ne. (English Count) 180 Denier. 50 Nm (Metric count) None of t

#Wool #Textile #TextileCoach #Gate #Tf_Gate #FiberLength WOOL FIBRE LENGTH (Capacitance Method) WIRA fibre diagram machine: (length for combed wool fibre) Parallel fibres have one end sealed between strips of plastic. Measurement is carried out by pulling the fibres “draw” through measuring slots. M/c measures the capacitance as the ‘draw’ passes through slots. (capacitance is proportional to the amount of material) Measured Length is calculated from the ten-length reading ta

#Textile #Yarn #Crimp #Gate #TextileCoach Crimp: Due to the interlacement of warp and weft yarns, a certain amount of waviness is imparted to the warp and weft yarns in a fabric. This waviness is called crimp. Hence the apparent length of a thread as it exists in the fabric is less than its straightened length. Crimp Percentage: It is defined as the mean difference between the straightened thread length and the distance between the ends of the thread while in the cloth, expre

#Textile #Gate #Fabric #Fashion #GSM #FabricWeight #TextileCoach GSM| Fabric Weight: The weight of a fabric can be described in the following two ways: Weight per unit area in terms of ounces per square yard or grams per square meter. Weight per unit length in terms of ounce per yard or grams per meter. The weight of a fabric can be determined by one of the following three methods: Method 1: Weighing of an entire cut, roll or bale of fabric when the length and width of the fa

#Gate #tf_gate #polymer #polymerization #monomer #textiles #TextileCoach Monomer: A monomer is a molecule that forms the basic unit for a polymer. Polymer: A polymer is defined as the repeating unit of a chemical. (or) It is a substance or material consisting of very large molecules, composed of many repeating subunits (or) Polymers are high molecular weight compounds, fashioned by the aggregation of many smaller molecules called monomers. The term Polymer is a Greek word Po

#Gate #Tf_Gate #Textile #TextileFibers #TextileCoach Natural fibers have their own peculiar structures, spots, lines, and other marks that help in identifying them. Following are some examples of natural fibers and how they look like under a microscope: Cotton: The cotton fiber may be a single elongated cell. Below a magnifier, it's like flat, spirally twisted ribbon like tube with rough granular surface. However, mercerized cotton does not have natural twist. The finishing m