- Narrow Woven Fabric Analysis
Posted by %PM, 25% 459% 2017 13%:%Nov in Weaving Read 2281 times
The most distinctive features of rubber weavings that distinguish them from other weavings are that they are narrow in width, and the latex yarns placed between the warp yarns and the special edge formation.
>>> Since elastane yarn is used, it stretches a lot in the longitudinal direction.
>>> Threads parallel to elastane threads are warp threads.
>>> Woven elastics are narrow-width.
>>> The lettering usually extends transversely on the printed tires.
>>> Auxiliary thread is usually used on the edge.
While calculating the weight, the rubber tissue is removed as it is and the weft threads, warp threads and the elastane threads (latex or gimped threads) used are separated and weighed. Weft, warp and elastane yarn weights and fabric weights are found by establishing a proportion over the value found. Yarn count calculation in narrow woven elastics is the same as the methods in plain woven fabric analysis. Generally, latex yarns are expressed by specifying their diameters in microns (such as 28/32, 36/40, 44/50). A 36/40 latex thread has a diameter of 36 to 40 microns. The yarn diameter is measured with a micrometer or micronaire. It is important that the working environment is clean and the calibration of the devices to be measured is complete.The following operations are performed in the analysis;
>>> The edges of the tire to be analyzed are cut and trimmed (care is taken to ensure that the edges of the tire are cut properly).
>>> The sample tire is weighed and its weight is found.
>>> The fringe is created by removing the yarn from the edges of the sample fabric.
>>> Determine the warp and weft direction.
>>> The face of the tire to be analyzed is found. (When we take the edge with or without auxiliary thread to our right, the upper side is the face of the fabric. However, both sides of the fabric can be considered as the face in the elastics woven in a single color and single knit).
>>> Paint, printing and finishing properties are determined.
>>> The type of yarn to be used is determined.
>>> Yarn count, ply count, twist direction and count, filament count are found.
>>> The warp and weft density of the sample fabric is determined using loops or with the help of analysis crochet with the naked eye. (Elastic warps are counted separately when determining the warp density).
>>> Warp and Weft color pattern is determined.
>>> The knitting report of the sample tire is determined.
>>> Draft and Dobby plans are made.
>>> The sample tire has longitudinal and longitudinal pulls. (The type of yarn and the weave used are taken into account).
>>> Card Width is calculated. (Desired finished fabric width and width shrinkage percentages are taken into account).
>>> The total number of warp wires is found. (It should be noted that the warp density is determined correctly).
>>> The number of warp wires passing through the reed tooth is found. (The warp density and reed width are taken into account).
>>> Comb Number is found.
>>> The warp, weft and fabric weights of the sample tire are calculated. (If different numbers of warp and weft threads are used, the weights of each are calculated separately. The weights of the warp, weft and elastic threads are weighed separately with a precision scale by removing the rubber tissue and separating them from each other).