Sitra norms for weaving pdf

The ultimate beginners guide for getting started basket weaving techniques, secrets and tips fine art wire weaving. Pdf improving yarn quality by modification on drafting. Important formulas of weaving calculation in textile. When it comes to textile, spinning is the key process, which has been given vital importance because many of the fabric properties, working of weaving machines and weaving preparatory machines are dependent on yarn quality. Shafi texcel started its production with a weaving plant. To help you meet this and other weaving challenges, handbook of. Spinning is the first steps of textile product processing. For opening spaces in the weaving to tuck ends of materials into the weave as needed in repair. The textiles covered by these standards are commonly formed by weaving, knitting, or spinning together fibers such as glass fiber strands, wool and other animal fibers, cotton and other plantderived fibers, yarn, sewing threads, and mohair, to name a few. Kris bruland has digitized the patterns in this book and put wifs. Analysis of number of yarn breaks during warping process. Norms for highspeed cotton knitting yarn have been evolved sitra, 2004, which can be considered as a guideline value for highspeed, silk knit yarns.

In the past, i have presented different calculation article on the different parts of weaving such as winding calculation, warping calculation, sizing calculation and loom production calculation. Joint tras publications atira, btra, sitra and nitra 107. Weaving calculation is too much important to know for a textile engineer or textile related person related person to run a weaving factory perfectly. High labour productivity in spinning case studies as seen earlier, to maintain the swc at a healthy level, say well below 5% of sales, high labour productivity is required. This process includes a lot of planning and preparation before the weaving phase begins, and a number of finishing steps after the last thread is woven. Page no 2 gradiation of uniformity index ui below 77. Thus, it has proved as a good solution for greater sensitivity to dynamic. Since its publication in 1975, this publication has been in continuous demand. The answer i usually give is that the actual weaving, that is, the act of throwing a shuttle back and forth across the loom, is about 10 percent of a complex process. The average weight of one inch length of fibre, expressed in micrograms 0. By mattik pmrrs todd of the motley school, minneapolis, minn.

Mumbai, held at sitra, coimbatore 2017 2015 2014 20 2012 2001 to 2010 1997 1994 conference conference proceed conference proceedings conference proceedings proceedings or old. Metric count nm indicates the number of 1 kilometer meter lengths per kg. Pre spun or plied for suitable strength and lexibility. A fabric roll 120 yards long and 46 inch wide contains following defects. Its probably a good idea to make your first weaving with scrap yarns, as a practice weaving, before staring out with your precious yarns. Jul 02, 2016 today textile industry is facing higher competition in the globalized market than ever before. The method in which these threads are interwoven affects the characteristics of the cloth. A mixture of science and art, weaving is nearly as old as human history. It includes reed count, reed width, maximum epi for a particular count, weave density, crimp percentage, cloth cover factor etc. Half pass or shed weaving in one direction, thus covering every second warp. Oelsners a handbook of weaves is the best known and most accessible weaving pattern book. From the fiber then become a yarn through some other process, weaving is a process of interlacing two types of yarn known as warp or ends run parallel to the weaving machine known as loom and weft or filling yarn run perpendicular to the loom to produce a rigid fabric. Weaving weaving is a method of fabric production in which two distinct sets of yarns or threads are interlaced at right angles to form a fabric or cloth. Actually this is the first ive heard of the norms so my information is extremely sketchy.

Sitra coimbatore basically the selection of cotton for any count of yarn depends on various characteristics of cotton for different counts such as staple length, fiber strength, evenness, uniformity, luster, moisture content micronaire fineness and maturity ratio. A guide to calculations relating to yarn and cloth and all processes of weaving. The actual weaving material, which covers the warp. This paper deals with countwise production particulars like spindle speed, tpi and. Intermill data on countwise ysp and corresponding rmc are very useful to the mills for decision making. Spinning is the twisting together of drawn out strands of fibers to form yarn, though it is colloquially used to describe the process of drawing out, inserting the twist, and winding onto bobbins. Textile research associations ministry of textiles. This tutorial will show you how to get started weaving on your new circular loom, with the addition of a couple of technique variations you can use to create interest and texture in your weaving. It includes reed count, reed width, maximum epi for a.

Norms for mechanical processing weaving by incorporating its expertise gained over a period of four decades. Weaving is one of the processes that required in textile in terms of producing a fabric. Aa ansari price discount maintenance management 46. Normally fabric roll containing 40 points per 100 square yard are acceptable. A systematic mixing plan by maintaining the lowest possible variation in cotton quality parameters ensures troublefree yarn production with consistent yarn quality. The abrading machine produces that the sized yarns have greater. Sitra is a recipient of close to 100 awards from eminent organisations over the years. Sitra standard encompasses the study of process, quality, waste, productivity, finance and cost, energy, and store consumption parameters for intermediate and final products for different spinning systems 6. Cottonspec incorporates a large database of fiber and yarn data from commercial spinning mills, a series of regressionbased models predicting yarn quality from measured cotton fiber quality parameters and yarn specifications and a user interface. Textile research associations atira during 200304, research and. Mar 27, 2018 weaving calculations a guide to calculations relating to yarn and cloth and all processes of weaving. The starting point for making a fabric is to get the warp beam which is a sheetlike assembly of. In this case, the method is classified in the group for the.

Sitra has published more than 750 publications comprising research reports, survey reports, mill control reports, focus and trends over the past 50 years. The foundation stone of sitra was laid by the then prime minister pandit jawaharlal nehru on 25th december 1955 sprawling in a campus of about 15 hectares, sitra is situated at coimbatore on the national highway to chennai and with in easy access to a large number of textile mills. Full pass weaving across the warp then back, in order to cover all the warps. Textile calcualtion free ebook download as pdf file.

Lahore being the second largest city of pakistan and a major industrial hub has had history of having many diversified manufacturing and service businesses. Reed commercial round reed is sold in coils by weight and diameter. Raw material cost rmc and yarn selling price ysp are the two major external factors, which largely influence the commercial efficiency of a spinning mill. A method of weaving is classified in the group designating the fabric woven unless the method is characterised by the operation of a particular loom rather than by the production of a particular fabric.

Due to this, wool warp is prepared mostly through the waxing procedure like cold sizing, which aims to improve the effect of conventional sized warp without the use of high temperatures. Polyvastra for all count groups 6 table 4 norms for yarn csp lea dimensions metric count 80 threads, 120 yard 100 threads, 100m group nm normal superior normal superior nm. No matter what youre looking for or where you are in the world, our global marketplace of sellers can help you find unique and affordable options. The process of making yarns from the textile fiber is called spinning.

To design these letters, i started with the letters in plate 158 of peter collingwoods book the techniques. Today textile industry is facing higher competition in the globalized market than ever before. Machinery maintenance manual hindi card, draw frame ring maintenance schedules and practices in spinning engaged cotton fabric fuenance to achieve quality selection. Aug 14, 2012 normally fabric roll containing 40 points per 100 square yard are acceptable. Very high micronaire and maturity the ratings of the micronaire and maturity values given below can be used as guideline. Attached is a list of suppliers in this area where reed can be obtained. Cost of production and its comparison with sitra authorstream. Sitra norms for spinning mills sitra norms for spin. The longitudinal threads are called the warp and the lateral threads are the weft or filling. Hence, sitra conducted an intermill study on the performance of tfo twisters, in which 100 mills participated. Despite the many technological advances in the field, however, it is still virtually impossible to control each individual fiber in a woven structure.

Advances in the spinning, weaving, and knitting of silk. Sitra is pleased to release this long awaited eighth edition of a substantially revised norms for spinning mills. Awl for opening spaces in the weaving to tuck ends of materials into the weave as needed. Sitra norms for spinning mills a comprehensive publication covering norms for quality, waste, productivity, finance, energy conservation and other areas relating to a spinning mill the south india textile research association coimbatore 641 014 contents combined norms first edition 1988 second edition 1990 third edition 1993 fourth edition 1995 fifth edition. S t weaving quality, thread y thread shafi texcel is an integrated textile mill located near the suburbs of lahore, pakistan. Weaving techniques for stunning jewelry designs handbook of weaving navajo weaving. The lower case letters are from my book, please weave a message. Sitra norms for spinning mills a comprehensive publication covering norms for quality, waste, productivity, finance, energy conservation and other areas relating to a spinning mill the south india textile research association coimbatore 641 014 contents combined norms first edition 1988 second edition 1990 third edition 1993 fourth edition 1995 fifth edition 2000 sixth edition 2004. Weaving on a hand showing the necessary positions, 77ie rttg the little girl is weaving is made of heavy carpet wool.

Weaving commissioned 248 looms 2014 15 dyeing dyeing of cotton yarn 5000 kgs per day production 2014 15 2010 11 hydro electric power plant hydro power generating capacity increased to 4. The south india textile research association 37, avinashi road, coimbatore aerodrome post, coimbatore 641 014, phone. Etsy is the home to thousands of handmade, vintage, and oneofakind products and gifts related to your search. Astms textile standards provide the specifications and test methods for the physical, mechanical, and chemical properties of textiles, fabrics, and cloths, as well as the natural and artificial fibers that constitute them. Versatile calcualtion book not only covers textile also cover water steam. May be found in stain and soil resistant treatments and water repellent finishes. The textiles covered by these standards are commonly formed by weaving, knitting, or spinning together fibers such as. Chicago park district, c1936 pdf at arizona the book of weaving new york. Black pdf at arizona summer and winter study of des moines weavers guild, by marian powell pdf at arizona popular rug techniques, by elmer wallace hickman pdf at arizona filed under. Sitra specialises in textile research, especially in cotton, for quality control in the processes of spinning, weaving and knitting. I am curious since there seems to be some corroboration to the information i got from my friends brother in sweden. How to achieve high labour productivity in spinning. Tape measure yardstick, to measure spokes the spokes are cut at approximately 30 inches. Process control and yarn quality in spinning woodhead.