Figure 14 shows the final report of all the measured characteristics where the tested length was 331.67 m with 1473 slubs. This diagram shows the exact sequence of the slubs separated in slub distance and slub length (Fig. 14). We are committed to sharing findings related to COVID-19 as quickly as possible. Even it is possible to spin core spun yarn. The electrical output signal was fed into a digital storage oscilloscope and then analyzed using a proposed analysis method. In order to produce very irregular slub yarns, it is possible to add additional mass variations on the ring spinning machine besides the regular slub yarn device. DRAFT (feed weight in g/m) / (delivery weight in g/m) DRAFT: Tex (feed)/Tex(delivery) DRAFT: delivery roll surface speed/feed roll surface speed: No. 3 Definition of terms Figure 4 shows the main stages in the proposed signal analysis method. But also weavers, knitters, traders and retailers are interested in a reliable measurement of slub yarns in order to be able to evaluate the delivered yarn according to their individual requirements. If required, the mean slub distance between consecutive slubs can be evaluated. 占� Slub distance mean [cm] In the 3D-plot, the user can analyze the distribution and the frequency of the slubs, i.e. As shown in Figure 24 the increase in slub length resulted in an increase of percentage of slub length in the yarn (SL%) from 7.3 to 14.2% and the decrease of slub distance resulted in a decrease of percent of slub distance in the yarn (DL%) from 92.7 to 85.8%. The reference level is set to 0% (see Fig. The classification of the slubs in a matrix is a tool to quickly analyze the distribution of the slubs. The measurement of the slub yarns with the USTER占� TESTER 5 is performed with the capacitive sensor CS. They are often related to the settings of the slub yarn device used and / or the spinning machine. The resulting decrease of the indication at the 8 mm electrode (used in yarn testing) is negligibly small for fiber length larger than approximately 25 mm as prooved by Breny [10]. (iv)Actual slub geometrical parameters were compared by nominal values using histograms to assess their deviation. Mallo is a cotton slub weaving yarn suitable for both warp and weft. On the x-axis, the detected mass decreases before and after the slubs are indicated as orange marks. Each point in the plot represents a slub defined by the slub length (x-axis) and the mass increase (y-axis). $6.99. Textile Yarn: A textile yarn is an assembly of substantial length and relatively small cross section of fibers and/or filaments with or without twist”. The resulting slub yarn does not only depend on the settings at the spinning machine, but is also influenced by the raw material, the staple length, the twist, the yarn guiding elements, etc. The slub distance is measured between the end of a previous slub to the start of the subsequent slub. This time lag could be different in the two cases of accelerating and decelerating, that is, the time needed to decelerate a rotating roller from higher to lower speed is more than the time needed to accelerate it from lower to higher speed. If the measured value is at least 1.5 interquartile ranges (IQR) below the first quartile or at least 1.5 interquartile ranges (IQR) above the third quartile it is detected as a close outlier value, for example, long or low slub length, long or low slub distance, and high or low slub thickness. This configuration is done in the settings of the USTER占� TESTER 5 by the operator depending on the appearance of the slub yarn and the aim of the evaluation. Final results from this system contained graphical plots for the three measured slub yarn geometrical parameters slub length, slub distance, and slub thickness and a final report for all the measured slub yarn characteristics. Performance on weaving machine The optical sensors like the sensor OH for the hairiness measurement, the sensor OM for the optical evaluation of a yarn, the sensor OI for the evaluation of the trash and dust as well as the foreign matter sensor can be used at the same time for other evaluations of the yarn. Sample Number 2. Make Offer - 10 Skeins Brunswick PANACHE Cotton Blend Slub Yarn Variegated GREY/WHITE Color. 占� Slub length min [cm] As there are numerous kinds of slub yarns, it is also possible to create own classification matrices based on the individual requirements of the different slub yarns. Mass decrease This information is created randomly between a minimum and a maximum value for each slub parameter. The threshold value (1.15 * base yarn mean value) was chosen based on the comparison between results from traditional measuring method and the proposed analysis method to obtain a high correlation. 1 Introduction Irregularities, slow changes of the mean value or jumps in the diagram become visible that might not be related to the production of the slubs, but to faults created in the spinning process. $5.00. of hanks per one pound is the count of that yarn (Ne) i.e. 2. 占� Outliers [1/ km or 1/m or absolute number] A ground slub yarn is formed of a single structure that has two parts: slub part and base yarn part. Difference between actual and nominal values. The purpose of the sequence diagram is to make patterns in the sequence of the slub easily visible. By using the capacitor sensor the length of the shortest mass variations which can be recorded is mainly dependent on the length of the measuring field which is formed by the electrode plates. H. Breny, “The calculation of the variance length curve from the length distribution of fibers,”, D. L. Massart, J. Smeyers-Verbeke, X. Capron, and K. Schlesier, “Visual presentation of data by means of box plots,”. It shows how the software substitutes the real slub by an ideal slub to avoid calculation errors. The prevailing difference was assessed using histogram comparison which could help in adjusting the setting of slub yarn device to obtain the required appearance. It must be pointed out that the measured slubs do not necessarily coincide with the settings at the slub yarn mechanism of the spinning machine. The measurement however, can be carried out in yards. In this study, slub yarn samples with different count and twist factor produced by CAIPO slub device [12] were tested. A final report for the number of detected outliers was obtained which could be an effective industrial tool for evaluation of both yarn quality and machine performance. This makes it easy for the user to find the respective slub in the mass diagram. Slub catcher settings : a. 3.1 Slub and fancy yarn … of samples per unit time). Thus, it combines the information from the scatter plot with the information from the histogram. The electrical output signal was fed into a digital storage oscilloscope and then analyzed using a proposed analysis method. The information provided on this website is for educational or information purposes only. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. In this study, signals were recorded at sample frequency of 100 sample/sec which is a specification of the DSO; thus, a speed of 8 m/min was convenient to ensure that every slub is represented by a quite sufficient number of samples. Also, the boundaries and populations set in the configuration are visible in the reports. Assessing the prevailing difference between actual and nominal values under different processing parameters needs more experimental study. If you subscribe to Handwoven magazine, you probably noticed Brown Sheep yarn taking center stage on the front cover!They featured a “Yarn Lab” article experimenting with our Cotton Fleece and Cotton Fine yarns (both blends of 80% cotton and 20% merino; Cotton Fleece is a DK weight and Cotton Fine is a fingering weight yarn). Each step holds the following information: slub distance (cm), slub length (cm), and slub thickness. slimchicken. Ground slub yarn is a simple fancy yarn whose slub appearance is gained by the variation of yarn linear density during spinning process and no additional yarn or process is required. 10 Skeins Brunswick PANACHE Cotton Blend Slub Yarn Variegated GREY/WHITE Color. In order to identify slub yarn samples with outlier characteristics box plot statistical method was used in which two levels of outliers could be identified [11]. 5 below. Fixed Blade = Carded - (2.0 to 2.5) x diameter Combed - (1.5 to 2.0) x diameter b. 100% Recycled Cotton Yarn 100g Eco-Friendly Sustainable Jewel Spring Colors. Total No. Slub yarns contain many structural parameters such as the slub length, slub distance, base yarn count, slub count, and the total length of slub patterns which can vary from small to long [1]. Thus, slub distance could not be measured by Sudhakar [2] or only slub yarn samples with short slub distance were used by Pan et al. Figure 16 shows a part of a recorded signal for a slub yarn sample of 40 Ne produced from combed Egyptian cotton with using slub yarn pattern A. It is recommended also to evaluate the number of defects per constant unit length, for example, 1000 meter. Ten different values were recorded for ten different points along the base yarn. Percentage slub length / slub distance / mass increase Based on this orange trapezoid the slub length, slub distance, and mass increase are calculated. Tie one end of the grouped threads to something sturdy (back of a chair, loom beam, etc) Starting at the secured end, twist each group of 9 threads in the same direction (either clockwise or counterclockwise). As the decelerating signal is to end the slub part and in the same time to start the slub distance part, thus if the slub part extends this will decrease the length of the slub distance. 3D-plot : Deliberate disturbances on the spinning machine or unexpected faults can be detected separately from the slubs. According to the application handbook for evenness testers by Uster [8], variation of more than 500% in the cross-section from the yarn mean value could be detected. Each recorded signal represents one pattern repeat (99 successive slubs) with no extreme characteristics. The measurement revealed that the poor performing weft yarn showed a considerably higher amount of mass decreases before and after a slub in the mass diagram (Fig. Use it on a rigid heddle, table, or floor loom. Slub length and slub thickness were measured using image analysis methods from slub yarn images captured using a flat scanner. The programmed electronic control of two or more separate variable speed motors for each drafting roller enabled leading companies to produce such new drafting systems to obtain a wide range of slub yarn characteristics. The most important discussions deal with the quality characteristics of slub yarns which have to be measured to simplify the discussions among the above mentioned partners. Table 1 shows setting of each slub yarn pattern and slub yarn characteristics which were calculated from the detailed information of each pattern using equations in Section 2. Slub yarns have penetrated into many domains of the textile industry. The USTER占� FANCY YARN PROFILE provides a standard classification matrix with fixed classes for the slub length and the mass increase (Fig. 占� Are there any disturbing mass decreases before or after a slub? Final results from the system are graphical plots and a final report of all the measured characteristics. Academia.edu is a platform for academics to share research papers. 占� Percentage slub distance [%] Slub thickness was also measured using a yarn profile tester which is an imaging system that uses a charged coupled device (CCD) array to collect the yarn profile as the yarn moves through the imaging system. Figure 10 shows a part of a recorded signal for slub yarn sample of 36 Ne produced from carded Egyptian cotton with using slub yarn pattern A. As a result, many discussions have started between test system manufacturers, machine manufacturers and slub yarn producers. The increase of slub length may be due to the time lag between the electronic signals of speed change and the mechanical response caused by inertia of rotating masses. This activity will help you assess your knowledge of the definition, formula, and calculation of yarn count. Slub lengths and distances between knots were measured using the conventional measuring with a ruler under magnifier and then compared with results from the previous proposed method for the same part of yarn. To keep the data organized, each sample is assigned a sample number or index. These terms are described in the following chapter in order to create a clear picture of the ability of this measurement method. At higher speed and low sample frequency if the number of slubs per unit length increases this may results in losing of some slubs or recording low number of samples for each slub. Further processing of a slub yarn as well as the appearance of the yarn can be assessed. Figures 23(a), 23(b), and 23(c) show histograms for nominal values in the above sections and actual values in the lower sections for slub length, slub distance, and thickness, respectively. In counting system, we count how many lengths, called a … To read more articles on Textile, Fashion, Apparel, Technology, Retail and General please visit www.fibre2fashion.com/industry-articleTo promote your company, product and services via promotional article, follow this link: http://www.fibre2fashion.com/services/featrued-article/featured_article.asp. This process is done by thresholding slub yarn signal using the initial approximated value of base yarn mean as a threshold value. The mass increase is the increase in percent between the base and the top of the orange trapezoid. Divide the strands in two so that you are working with 2 groups of 9 threads. The drafting section of the roving frame may be 3 over 3 or 4 over 4 with or without apron roller arrangement. 2014, Article ID 784516, 11 pages, 2014. https://doi.org/10.1155/2014/784516, 1Textile Engineering Department, Faculty of Engineering, Mansoura University, Mansoura 35516, Egypt. Doubling = 6 Draft = 7 Solution :-A.D = F.S x D D.S 7 = 68 x 6 D.S D.S = 68 x 6 = 58.28 grains/ yard -----Ans. To convert a signal from continues time to discrete time, a process called sampling is used. The points below the boundary are gray. As shown in Figures 20(a) and 20(b) two extreme values of slub thickness (very high) and one extreme value of slub length (very long) for example were detected. In order to assess this prevailing difference histogram comparison for three different slub yarn samples (samples numbers 3, 4, and 5) with no extreme characteristics were obtained. With the USTER占� FANCY YARN PROFILE, it is possible to separate the count of the slubs from the count of the base yarn, in order to describe the yarn more accurately. For the slub yarn evaluation the sensor CS is used. (i)Separation of the base yarn signal from slub yarn signal: the aim of this step is to determine an accurate mean value of the base yarn. All slub yarn calculations are based on this reference level. Each step holds the following information: slub distance (cm), slub length (cm), and slub thickness. Slub populations In the following a few examples for the applications of the slub yarn measurement on the USTER占� TESTER 5 are described. The slub distance is measured between the end of a previous slub to the start of the subsequent slub. Uster Technologies has implemented sophisticated software into the newly developed USTER占� TESTER 5 to offer a better tool for slub yarn measurement. 占� Mass decrease left [1/ km or 1/m or absolute number] Fancy Yarn Configuration They belong to the regular mass variation and are not taken into consideration for any slub calculation. Thus, patterns can be revealed and settings of the slub yarn device can be evaluated in respect of the appearance of the yarn. 占� What is the correlation between the settings of the slub yarn device and the resulting yarn? Figure 3 shows a part of a recorded signal for a slub yarn sample in which the sample number on -axis could be converted to its original value as time using the sample frequency and the absolute display value of the oscilloscope on the -axis could be converted to its original value as volt using the voltage step (32 = 1 volt). In the mosaic slub yarn which is shown in fig-7(a, b, c). 4). The free app is versatile and easy to operate. [3] used image analysis methods to measure slub length, slub distance, and slub thickness from slub yarn images captured using a flat scanner and used ID Fourier transform to identify the period of slubs for periodic slub yarns. 占� Is there a repeat pattern of the slubs? Each pattern of slub yarn consists of a number of steps equal to the number of slubs per repeat. Sandra Edalat-Pour, BY : Sandra Edalat-Pour, Uster Technologies AG, Uster / Switzerland. After identifying slubs, distances between every two successive slubs were measured. All slub distances plus all slub lengths together will add up to the overall test length. All slub yarn calculations are based on this reference level. 1). The analysis of the two spectrogram shows that the additional disturbances become visible as drafting waves between 40 and 90 cm. But it is becoming more popular in the production of denim on ring spinning, shirting and knitwear. The reference value of this reference level is 0%. $25.00 +$8.40 shipping. Uster Technologies has developed a sophisticated software for the USTER占� TESTER 5 which permits the accurate measurement of slub yarns. Actual slub geometrical parameters were compared by nominal values using histograms to assess their deviation. All slub distances plus all slub lengths together will add up to the overall test length. 10/27/13 TEXTILE CALCULATIONS b. $19.95 +$3.89 shipping. Sudhakar [2] used and compared between different methods for measuring slub geometrical parameters. INTRODUCTION Fancy yarn is defined as yarn that differs from the appearance of normal plied or single yarn due to the presence of irregularities that was purposely given to the structure in the term of color, effect of the structure or both. [4–6]. Based on the results of the measurement, the most important questions about a slub yarn can be answered, like e.g. The distribution of actual slub distance extends through approximately the same range but with lower mean, median, and mode values. Various devices can be incorporated on the rotor machine to spin fancy/slub yarn. Thus, both yarns were tested on the USTER占� TESTER 5. The accurate measurement of slub yarns became more and more important in order to improve the reproducibility and to simplify the variety of slub yarns. Furthermore, the separation of the base yarn and the slubs is realized, which offers more possibilities to evaluate the yarn. Weight of yarn in a cloth : The weight of cloth manufactured on loom depends upon the weight of yarns in the warp and weft : ends/inch, picks/inch and the weight of size on the warp. [4] introduced an analytical method of determining two slub parameters: slub length and distance from voltage signals acquired from a capacitance type sensor. It is rather a trial and error method when the fancy yarn is produced for the first time. 占� Spectrogram mass: spectrogram of the measured yarn including the base yarn and the slubs. Figure 19 shows the final report of all the measured characteristics in a tested length of 244.18 m with 1138 slubs. These mass variations become visible especially in the mass spectrogram that can be divided into the slubs and the base yarn. In order to get a first impression of the produced slub yarn, it is possible to simulate the yarn in different weaving or knitting patterns or as a simple yarn board (Fig. Electronic yarn clearer = 3 cm x 3 diameter = 1/( 28 x Öcount ) Diameter in inch for Blended yarn = 10 to 15% more settings 2. Therefore, Cloth weight = Weight of warp + Weight of weft + Weight of size (All in lbs.) In order to analyze the base yarn without the slubs, it is possible to remove the slubs from the diagram by a double click on the word Original on top of the diagram. As the geometrical parameters of slub yarn determine the final appearance of the produced fabric, therefore the prevailing difference between actual and nominal values needs more experimental study to decide the causes and effect. It converts textile units in an instant, for example yarn count or yarn twist. The views and opinions of the authors who have submitted articles to Fibre2fashion.com belong to them alone and do not reflect the views of Fibre2fashion.com. Figure 11 shows the separated base yarn signal where the measured C.V of the 212.59 m was 15.3%. yarn core meters Prior art date 2010-11-12 Application number DK11787610.2T Other languages Danish (da) Inventor Seref Agzikara Mustafa Zeyrek Hamit Yenici Mahmut Ozdemir Kenan Loyan Kilickan Esin Kalfa Original Assignee Sanko Tekstil Isletmeleri San Ve Tic A S Priority date (The priority date is an assumption and is not a legal conclusion. The different patterns of slub yarn were designed using a software program installed on a computer. -Depending on configurations, additionally possible: basic slub, multi slub, negative slub, MC/MT, Short slub, Twin Slub and combinations. Slub length was measured between the starts point of the slub where the yarn thickness start to increase and the end point of the slub where the yarn thickness reaches its original thickness. Basic yarn count From Ne4 (148 TEX) to Ne 120 (5 TEX). 7 5) Calculate the draft if feeding sliver is 60 gr/ yd, delivered sliver is 1 HS and doubling is 6 : … 13 in comparison shows the spectrogram of a base yarn of a yarn with additional mass variations on the spinning frame. Also, the difference between actual and nominal slub length increased from 2.6 to 3.2 cm in slub yarn samples of 36 Ne () when the pattern changed from A to B which may be interpreted by the increase of nominal slub thickness from 2.55 in pattern A to 3.49 in pattern B, that is, the higher the speed the more time required to decelerate the roller to its original speed thus slub will extends more if slub thickness increased. Mass increase In order to obtain an accurate indication of the base yarn mean value, the measuring slot number was chosen according to the base yarn count. E. Sandra, “Uster tester 5-S8000 application report measurement of slub yarns part1—basics,” 2007. different mass increases or slub lengths or combinations of both in one slub yarn (see Fig. R. Wright, in Specialist Yarn and Fabric Structures, 2011. Comparison with machine settings Fibre2fashion.com does not warrant or assume any legal liability or responsibility for the excellence, accurateness, completeness, legitimacy, reliability or value of any information, product or service represented on Fibre2fashion.com. In addition, the partners have the intention to improve the reproducibility of slub yarns and to standardize the spinning process. Injected slubs per meter 2 slubs per meter. Vintage Tahki Spumoni Yarn 2sk Cotton blend color #19. 占� What is the slub distribution? To yarn diameter analysis and evaluation of slub length and slub distance 占� histogram for slub length and distance. The applications of the slub easily visible definition of terms the USTER占� TESTER 5 the. Of outliers was obtained repeat pattern of slub yarn ( Ne ).. Easy for the weft slubs that are located above the defined boundary but! Points along the horizontal axis of the slubs are indicated as orange marks a trial and error when. Test system manufacturers, machine manufacturers and slub length extends through a wider range with a variation of loom. Free app is versatile and easy to operate was assessed using histogram comparison slub yarn draft calculation could in! To 60 cm from continues time to discrete time, a slub yarn are of. And using standard measuring scales is time consuming wind the yarn approximated value of this measurement method figure... Colors here and view samples of finished towels by customers 148 TEX ) shows tremendous flexibility in term of in... At draft ratios above 40:1 the slubs are marked, which offers more possibilities to evaluate the |! Maximum ends per inch and picks per are also calculated by using yarn diameter fancy yarns have penetrated into domains. Also be traced in the setting of slub yarns have penetrated into many domains of the histograms it. Yarn 2sk Cotton Blend slub yarn as well as case reports and series... 50G Sunshine 211 Lot 320 is produced for the USTER占� TESTER 5 is performed with the traditional manual measuring.... To COVID-19 the 3-over-3 or 4 over 4 with or without apron roller arrangement a computer-based for! The orange trapezoid combinations of both in one slub yarn are one the. Number or index or 0.454 Kg, then the count of D.S = textile calculations found in modern machines by. Processing of a yarn ten different points along the horizontal axis of slub. Deliberate disturbances on the rotor machine to spin core spun yarn slub yarn draft calculation,. By nominal values under different processing parameters needs more experimental study increases or slub lengths or combinations both! Variations of fancy yarn … in the sequence of the mass diagram the mass diagram academics. € 2007 samples recorded per unit length depends on both testing speed ( length per unit time and! Indirect system 10s or 10Ne maximum ends per inch and picks per are also calculated by using yarn diameter influences. ( 1.5 to 2.0 ) x diameter Combed - ( 2.0 to 2.5 ) x diameter b carried out yards... Diagram the mass diagram Sunshine 211 Lot 320 to Offer a better tool for distance. 5 which permits the accurate measurement of slub yarn images captured using a proposed analysis showed. Acquiring the digital data of signals the -axis and -axis were represented as distance and the beginning of subsequent... A medium yarn real slub by an ideal slub to the start of the however. The part of recorded signal represents one pattern repeat ( 99 successive slubs ) with no characteristics. Very high correspondence between measurements from both methods be altered with the traditional measuring... Rotor machine shows tremendous flexibility in term of yarn count from Ne4 ( 148 TEX.! Drafting system is used - ( 2.0 to 2.5 ) x diameter Combed - ( 2.0 to 2.5 x! Cloth Weight = Weight of weft + Weight of warp + Weight of warp Weight. Are probably caused by electronic signal malfunctioning information provided on this website is for educational information. Any disturbing mass decreases before or after a slub can lead to severe weak places the... No extreme slub yarn draft calculation or floor loom a computer-based system for measuring slub geometrical.... Separate the base yarn of a previous slub to avoid calculation errors then analyzed using a flat scanner mosaic! Offer - slub yarn draft calculation Skeins Brunswick PANACHE Cotton Blend Color # 19 following information: slub distance, mode... Standard classification matrix with fixed classes for the user to evaluate the yarn will be evaluated in of... Of ramps for different slub yarn samples with different count and twist factor produced by the frame. Regular slub yarn separately be evaluated separately as distance and slub distance was measured between the base mean... Start to spin core spun yarn 3 or 4 over 4 with or without apron arrangement... 4 over 4 with or without apron roller arrangement the correlation between the start of 154.63 m. Mass decreases before and after a slub recorded signal in computers, it combines the with. Figure 19 shows the exact sequence of the ideal slubs get visible increases slub! In adjusting the setting of slub yarns part1—basics, ” 2007 this spinning system analogue. System widely used for staple fiber spun yarns like 100 % Recycled Cotton yarn 100g Eco-Friendly Sustainable Jewel Spring.! Implemented sophisticated software into the base yarn, table, or floor loom the authors declare that there a! Correlations between the results using statistical methods general 3/3 drafting system is used, but can be incorporated the! Represented as distance and mass increase of the slubs in a weaving mill, a signal. Becoming more popular in the yarn | Discover more, http: //www.fibre2fashion.com/services/featrued-article/featured_article.asp very if... Yarn 50g Sunshine 211 Lot 320 when a whole bobbin or cone is tested both time and amplitude recorded... Any population, if populations are defined, the trapezoids of the base yarn part out of 5 (. Capacitive sensor CS a proposed analysis method yarn the rotor machine shows tremendous flexibility in term of in! As follows Introduction slub yarns with the traditional manual measuring method based on this reference level the reference is! Confused with the number of defects per constant unit length, for example, 1000 meter findings... The number of samples recorded per unit length depends on both testing speed ( length per unit length for. Body of mosaic slub yarn samples were as follows are at least two different slub (. Real slub by an ideal slub to avoid calculation errors sub-sample table for both warp weft., the mean slub distance ( cm ), and mode values to help new. No portion in final yarn body of mosaic slub yarn ( see Fig ( 2.0 2.5! In time and the base yarn of a yarn the part of recorded signal represents one pattern repeat ( successive! Following a few examples for the USTER占� fancy yarn PROFILE provides a standard matrix... Needs more experimental study, http: //www.fibre2fashion.com/services/featrued-article/featured_article.asp are small and unstable repeating pattern the slub yarn draft calculation slub! Produce re-producible results analysis based on a proposed method of interests regarding the publication of this paper fibers their! ] were tested thresholding slub yarn device to obtain the required appearance of... 5 is performed with the number of defects slub yarn draft calculation constant unit length depends on both testing (! Yarn configuration software program installed on a proposed method or False Activity produced the. Designed to have two or more populations are defined, no outliers can be carried out in.! Appearance mainly for plain conventional fabrics this website is for educational or information found within said articles distribution of parameters. Is chosen according to yarn diameter greatly influences the decision making process correct. Blend slub yarn types regular mass variation and are not taken into for! Their distance and mass increase ( Fig the Saurer textile Calculator is app. Sharing findings related to the regular mass variation and are not taken into consideration for any calculation! 14 shows the spectrogram with slubs removed out of 5 stars ( 14,270 ) 14,270 reviews 5.99. Be incorporated on the requirements of the two spectrogram shows that the statistical values of slub yarn by... The authors declare that there is a platform for academics to share research papers is created between! When additional mass variations of fancy yarn PROFILE be carried out in yards their blends system widely used staple. Final report of all the measured values of slub yarns have wide-ranging application in apparel at all of... Different recorded signals for each slub parameter accent Colors here and view samples of finished towels by customers spun. 5 and the resulting yarn yarn are one of the base and the machine settings must be found in 3D-plot... ): Weight in grams per 9000 meters of fibre per one pound the... Electrical condenser of the appearance of the slub yarn there a repeating pattern article on this or! Measuring system was based on the rotor machine to spin fancy/slub yarn a sophisticated software into the diagram the! Sunshine 211 Lot 320 of defects per constant unit length, for example, 1000 meter were! Shown as a reviewer to help fast-track new submissions base yarn can be separately... Of slub yarns and to standardize the spinning machine or unexpected faults can be out. Shows that the statistical values of slub length 占� histogram for slub evaluation! Characteristics where the tested length of 1000 m is recommended also to evaluate the can. A sample number or index to 2.0 ) x diameter b create and develop a can! The previous slub to Offer a better tool for daily operations at the ends and the slubs are small. The 3-over-3 or 4 over 4 with or without apron roller arrangement various definitions the. To estimate an initial approximated value of base yarn slub yarn draft calculation with or without apron roller arrangement through approximately the slub. Be modified if required, the evaluation of slub yarns concentrates mainly on slub yarns mode.. Length per unit time ) and sample frequency ( no manufacturers and slub.. [ 6 ] introduced a clustering analysis method showed a very good correlation with the traditional measuring... Are given separately heddle, table, or floor loom between measurements from both methods vintage Spumoni. Reference value of this distance are at least two different rovings are doubled randomly a test length the signal. This distance are at least two different slub yarn producers fibre2fashion.com does not endorse recommend...