performed on 1/8th of the cops produced on 1000 m of yarn (first doffing of 4 cops per repetition) for a total of 2000 m. - Detailed analysis of OE yarn: the same method as for ring spun yarns relationship between fibre properties and yarn quality has been investigated. There is an inverse nature of NEPS (200%/km) with the increase in polyester proportion in the blend, which is shown in Figure 4. (2.75 mm), respectively. relationship between fibre properties and yarn quality has been investigated. Mixed Neps: Fibers tangle around a foreign materials. Cotton Textile Technology, 1999, 27(11): 35-37. The Neps are an undesirable factor which reduces the quality of the yarn and ultimately reduces the cost of the final products. Biological neps are neps that contain foreign material, whether the material is seed coat fragments, leaf, or stem material (Figure 1) (Hebert, 1988). The fluorescent neps are in polyester. On the other hand yarn imperfection (neps, thick and thin places) which is another parameter considered as parameter of yarn quality. The present study has aimed at understanding the combined effect of cleaning intensity, cylinder speed and To evaluate the impact of different combing seg ments (half laps) in comber on smaller size neps in comber sli ver and yarn quality. It is of practical significance to use the DR% value (20%, 0.01m) to evaluate the influence of the yarn on the surface of the knitted fabric. Neps are best described as dense, tangled clumps of the short fibers of the fleece. Customers can do cotton portion dyeing to get the effect in the yarn. Neps may also interfere with economical spinning and may possibly For example, yarn quality at each spinning position is monitored by yarn clearers, such as the Uster Quantum Clearer [20]. The effect of neps on yarn cost is twofold: (1) neps must be largely removed before yarns can be produced, (2) residual neps can be detrimental to the appearance and the value of yarn. Carded Yarn: Carded yarn is the worst quality type of yarn. When yarn becomes thinner, fibres join the structure better and less prone to go out from the yarn axis. Over the range of values examined here for short fiber content and neps, there were no significant changes in yarn quality values with the new technology. Before mounting , the eccentricity of cylinder and doffer should be checked. There is an inverse nature of NEPS (200%/km) with the increase in polyester proportion in the blend, which is shown in Figure 4. There are different types of yarn to be processed short staple and long staple like Combed, Carded, synthetic and Viscose. Combing is the process that removes the final proportion of short fibers, neps and others impurities such as vegetable matter and seed coat fragments in cotton that has already been carded. If the yarn appearance is poor, the fabric appearance will also be poor. Combing is the process that removes the final proportion of short fibers, neps and others impurities such as vegetable matter and seed coat fragments in cotton that has already For retaining their maximum original parameters they require different types of sliver handling systems. The effect of ring traveller weight and spindle speed on yarn quality was investigated in this research. tracts from the general appearance of yarn and cloth products and lowers their quality, especially if they are to be dyed. The neps no t only give a bad appearance to the yarn and cloth, but also affect the dyeing quality. Little research has been conducted on the impact of UNR cot-ton in the textile plant. Apr 13, 2022 - ITO Karei is a gem in the ITO collection: 100% grade A Mongolian cashmere with a tweed effect of little colored neps. Some people dont worry about neps and allow them to form to add texture to their yarn, but Also, the carding machines of the For instance Grit. The effect of these alterations on yarn strength is discussed with particular focus on seed coat fragments (SCF), one of the primary cotton contaminants from the fiber to the finished product. Improper selection will affect sliver C.V% and yarn quality. Normally, this type of yarn contains more neps and more short fiber. 1. Moreover, the yarn is imported on a paper cone, so in order to make it coloured the paper cone must be replaced by a plastic cone. The two ginning practices that have the most effect on quality are the regulation of fibre moisture during ginning and cleaning, and the degree of gin cleaning used. The harmfulness of neps. In contrast to the loose arrangement of a worsted nep, a cotton nep generally has a tight formation. In most cases, fibrous neps are found to contain at least five fibres, with the average number being 16 or more. (van der Sluijs, 1999). Indeed, there was an increase of the Neps count and the ratio of short fibers (SFC). The amount of nep in the yarn not only affects the appearance quality of the yarn and the grey cloth, but also directly affects the dyeing effect of The yarn is woolen spun on a mule spinning system. 3. The study revealed a relationship between the blend ratio and the NEPS 200% in the yarn per km. yarns desirable characteristics. The sensitivity levelwas 3for thick places and neps and - 50% for thin places. In this study, the effect of rotor speed from 35,000 to 45,000 rpm and rotor diameter from 43 to 66 mm on 100% cotton yarn But the fibers between 1.75 and 2 inches exhibit the highest correlation with the yarn CV%. This research aimed to examine the effects of different irrigation levels and planting geometries on fiber quality and seed composition of cotton (Gossypium hirsutum L.). Improper feed roller loading and the setting between feed roller and feed plate will affect the quality, especially C.V% and neps. places (+50%)/km + Neps (+200%)/km] (For ring yarn). Effect of Sliver Handling on Quality of Sliver and Yarn. A good yarn should lack those neps. 811 Chestnut. Effect of polyester/cotton blend ratio on NEPS 200%/ km. Increasing the recycled polyester content increases the tenacity, elongation at The fluorescent neps are in polyester. Background Cotton fiber quality and seed composition play vital roles in the economics of cotton production systems and the cottonseed meal industry. The cotton neps would cosiderably mar the appearance of the fabric, particularly those dyed in contrast shades, in case of Polyester Cotton suiting. under commercial yarn counts and twist factors, in order to reduce the cost of production and to be economical for the popular fabrics. 1.the nep. Feel [] The concentration of these materials largely depends upon cotton variety, growing area and atmospheric conditions. The imperfections i.e., thick place (+50%), thin place (-30%), and neps (+200%) of elastic core yarns produced in conventional and compact spinning are exhibted in Figure 8(a), 8(b) and 8(c), respectively. The actual reductions are determined by the fiber as well as the design, settings, and maintenance of the machines. A reliable analysis of these imperfections will provide some reference to the quality of the raw material used The standard sensitive levels are as follows : Thin place: -50% Immature Neps: Generally The study revealed a relationship between the blend ratio and the NEPS 200% in the yarn per km. neps. The woolen spinning process makes a warm and cozy yarn due to the The effect of these alterations on yarn strength is discussed with particular focus on seed coat fragments (SCF), one of the primary cotton contaminants from the fiber to the For the rotor spun yarn, the negative effect on the yarn uniformity of the shorter fibers is limited. Yarn Evenness and ImperfectionsBy : Ravikeerthi Rao; 2. neps in card sli ver and yarn quality. Combed yarns are superior in quality when compared to carded yarn as they are generally finer, stronger, smoother and more uniform due to the removal of short fibers and the The superior quality neps yarn available on the site are made from materials such as wool, acrylic, polyester and cotton which impart unique desirable characteristics to the blend. In order to study the effects of heat setting conditions on the properties of 100% cotton yarn, 30/1 Ne combed ring yarn cones were heat setting in a XORELLA CONTEXXOR The aim of the project was to find out the optimum flat speed in the context of yarn quality. Nep removal efficiency of card, irregularity of sliver and yarn as well as imperfections (thick places, thin places and neps), yarn hairiness, yarn strength were found more satisfactory level at the card production rate of 60-120 meter/min. The draw frame machine is the last Yarn imperfection of rotor spun yarn affects fabric quality significantly. YARN EVENNESSYarns of different quality levels result in fabrics of distinctlydifferent quality levels, leading to problems in processing orvariations in final value (of the fabric / garment).These differences impact on prices and affect the costs andprofitability of both fabric & apparel 2. Results and Discussions Multiple linear regression Lattice apron makes a great impact on yarn qualities such as IPI values, thick places, thin places, Neps, Yarn hairiness, U% in respect In multiple linear correlation and regression, additional to mass, Yarn strength, CSP value, Tenacity and Elongation %. YARN EVENNESS Effect on Quality Fabric defects and rejections are critically influenced by irregularity of yarns. Periodic and quasi periodic irregularities in yarn result in warp way streaks and weft bars in woven fabrics and a non-periodical yarn irregularity gives cloudiness in the woven or knitted fabric, The important effect of carding from yarn quality point of view[J]. the number of passages has a significant effect on the quality of the reclaimed fibers. 1. In this study, the effect of rotor speed from 35,000 to 45,000 rpm and rotor diameter from 43 to 66 mm on 100% cotton yarn properties in terms of thick, thin places and neps were systematically Cotton Polyester blend Injection yarn with fluorescent neps in it. neps), short term evenness (u%), and strength of yarn are influenced by the changes in bottom roller gauge setting, affect the quality of the yarn. Yarn twists more than normal result in the formation of Thus, the recommended tension for the yarn plays a very important role and has a great effect on the yarn quality. This type of yarn does not contain any short fiber and neps. The main emphasis of this project work is to find out the effect of fiber length on yarn quality for achieving the good yarn strength, and the trials have been conducted to Machine types which are having varied needle strength hook sizes and dial and Combed Yarn: Combed yarn is one of the superior qualities of yarn. Even though the cards are feed with the The main emphasis of this project work is to find out the effect of fiber length on yarn quality for achieving the investigated the effect of yarn structure and yarn count on the properties thick place (+50%), thin place (-30%), and neps (+200%) of elastic core yarns We conducted a 2-year study in 2018 Results and Discussion The effect of fibre length on yarn quality isobvious from the data given in Table l. Initially, there is an increase in yarn tenacity as the fibre length increases To spin high quality ITO Karei is a gem in the ITO collection: 100% grade A Mongolian cashmere with a tweed effect of little colored neps. The yarn is woolen spun on a mule spinning system. Process Neps: Commonly produced by faulty carding or up to spinning yarn. The experimental results show that the yarn quality parameters such as Um%, CVm%, thick places, thin places, neps, Imperfection Index and hairiness of 100% cotton are higher than speeds leads to produce inferior sliver quality The Neps is a undesirable factor which reduce the quality of the yarn and ultimately reduces the cost of the final products, In order to reduce the Yarn was prepared by using two spinning speeds, 6500 rpm and 9500 rpm. Yarn The crucial yarn properties Neps not only adversely affect the appearance of cotton yarns and fabric but are also usually associated with lower yarn strength, ends down in spinning and less-uniform yarn. Cotton Polyester blend Injection yarn with fluorescent neps in it. Ring spun yarn has retained its position as the system that produces the strongest, finest, softest and most lustrous yarn and fabric. The yarn is made in cotton and polyester blends as per the customers requirement. The neppy yarns give raise to problems like breaking of needles in sewing and knitting operations. In this back drop the present research study was planned to The removal of neps represents a The purchaser should always keep in his mind that the effect of the yarn appearance is directly reflected on the fabric surface. ITO Karei is outstandingly soft, as mule spinning creates the highest quality yarns. Cause of neps and trash and controlling measures in carding procedure[J]. trying to monitor neps. Elrys et al. ITO Karei is outstandingly soft, as mule spinning creates the highest quality yarns. Selection of suitable yarn count should be based on: Machine gauge, Yarn Tex = {100/G}2. Differential dye pick-up. The results indicate that an alternative harvesting Snarling is a common problem in the yarn manufacturing process, such as winding, warping, weaving, and knitting. The hairiness values of the yarns produced in the study are shown in Figure 4. But the fibers between 1.75 and 2 inches exhibit the highest correlation with the yarn CV%. Present results show a nonsignificant effect of spacers on yarn neps. The quality of hosiery yarn has to be considered with due weight-age to fluidity of knitted structures and their influence on knit fabrics quality.