This process imparts a slight twist to the stand of fibres and winds on to the rotating spindle. Mar 12, 2018 the commonly used, timetested spinning technique, ring spinning is one of oldest machine oriented spinning techniques used for staple fiber spinning. How to control of waste in spinning mill textile course. The roving is feed into ring frame for yarn production. Mar 23, 2017 and today i will take you a little bit farther process with raw cotton. Ring spinning is a method of spinning fibers such as cotton. Tencel fiber with good structure and good physical mechanical prop. Airjet spinning of cotton yarns cotton incorporated. Doubling is a textile industry term synonymous with combining. In ring spinning, the roving is first attenuated by using drawing rollers, then spun and wound. Other spinning systems have also eliminated the need for. Introduction to spinning process online clothing study. Before industrial revolution occurs, hand spinning method is widely used by people for making yarns.
Plied cotton yarns were manufactured using the cotton carded system on ring spinning frames in five variants of yarn linear density, i. Pdf compact spinning system for fine count egyptian cotton. However, ring spinning frames are still competitive in relation to rotor spinning machines, and. Wet spinning and drawing of human recombinant collagen. In textile industry, the size of yarns is determined by unit of tex, count, worsted, woolen, and denier. For winding to occur, ring rail is moving up and down to wind the yarn. The ring frame developed from the throstle frame, which in its turn was a descendant of arkwrights water frame. The commonly used, timetested spinning technique, ring spinning is one of oldest machine oriented spinning techniques used for staple fiber spinning. It is also related to shortfiber content content of fibers shorter than 12 inch.
Spinning is the process of conversion of textile fibers and filaments into yarns for weaving or knitting into fabrics. At many stages of spinning process waste is removed to clear the cotton or to separate the short fibres but at the stage of ring spinning there is no need to remove waste. Here we will explain each process in detail using some illustrations. There are different types of spinning, the most commonly forms of spinning are. Depending on the fineness of the fibre, yarn can be spun from the hackled sliver in a wet spinning process between 8 nm and 100 nm. In this article, we are going to know about the various processes which lead to the formation of worsted spun yarns. Ring frame converts the roving bobbin into the yarn. During the 18th and 19th centuries, as part of the industrial revolution cotton spinning machinery was developed to bring mass production to the cotton industry. Box 12, jerusalem, israel institute of chemistry and the center for nanoscience and.
Yarn wound during the slow upward movement of ring rail is called winding coil, whereas yarn wound during downward movement is called binding coil. Cotton to yarn process yarn manufacturing process or yarn textile is the first steps of textile product processing. The purpose of a genuine compact spinning process is to arrange the fibers in a completely parallel and close position before. Compact spinning system for fine count egyptian cotton yarns. Digital printing of textiles pdf woodhead publishing series in textiles by h. Tencel fiber can be spinned in cotton spinning system, wool processing system and many other systems, and the. These vegetable fibres can come from the seed cotton, the stem known as bast fibres.
Ring roving bobbins are placed on the spinning machines. Effect of postspinning operations on the hairiness of ringspun. During the carding stage, several sources of roving are doubled together and drawn, to remove variations in thickness. Ring spinning, the widely used yarn formation technique. Such cotton may be difficult to process and is likely to produce lowquality yarn. Spinning ring spinning frame roving ring spun yarn spinning cops post spinning.
When using most other dyes, if the ringdyeing effect occurs, it would be considered a dyeing defect. Jul 02, 2016 44 process control and yarn quality in spinning such control is economically important because cotton cost and related mill qualities, as well as processing efficiencies and associated costs, can be positively affected when cotton is acquired and used with the benefit of hvi data. Spinning process tencel fiber can be spinned in cotton spinning system, wool processing system and many other systems, and the technological process of spinning is short. Spinning ring spinning frame roving ringspun yarn spinning cops postspinning.
The present study was aimed at studying the nature of hairiness of a ringspun cotton yarn of 30s ne. During the 18th and 19th centuries, as part of the industrial revolution cottonspinning machinery was developed to bring mass production to the cotton industry. It removes short fibers, neps, and any remaining small trash particles while parallelizing the fibers. It is the very first time that we are starting the cotton line in our factory. And today i will take you a little bit farther process with raw cotton. Ring spinning when looking at a fabric we usually ignore the fact that its made up of very thin yarns arranged in different ways. This step is exclusively for drafting twisting and packing the yarn in the shape of bobbin. From raw cotton to cotton fabrics the fabric usually used in the clothes we wear is produced through two processes. Quality parameters analysis of ring spun yarns made from different blends of bamboo and cotton fibres 2 of paper for centuries. Pdf effect of spindle speed of ring frame on yarn quality. Pdf production planning in cotton spinning mills teferi b. Using a conventional ring spinning process, core yarns were prepared on a ring frame by passing polyester filament yarn through the front roller nip of a ring frame 10,11 and roving through the drafting zone of the ring frame as shown in fig.
Ring spinning is the oldest type of fiber spinning still in use. There are two classes of spinning process have been developed by people, hand spinning and machine spinning. If noticeable problems occurred at any step of the process, the cotton was mixed with 50% nonsticky cotton and the process was repeated. A carded cotton ring spun yarn begins with a bale laydown. Spinning class cotton process line trutzschler machinery. Ring spinning is one of a number of methods for assembling and twisting fibres to form a yarn. From raw cotton to cotton fabrics toyota industries. Ring spinning is a comparatively expensive process because of its slower production speeds and the additional processes roving and. Pdf in this article, ring staple single yarn spinning method development. Ring spinning frames continue to play a role in this country, but openend spinning, with rotors that can spin five to six times as fast as a ring spinning machine, are becoming more widespread. Cotton yarn manufacturing process textile study point. Smith faculty of agriculture, food and environment, and the center for nanoscience and nanotechnology, the hebrew university of jerusalem, p. This produces an intense ring of color around a white core in the cotton yarn and the cotton fiber thus the name ring dyeing. Root cause analysis rca identified use of manual doffing, lack of time.
During the process of spinning, twisted yarn is wound over the spindle cop. Ring spinning is one of the most common spinning methods in the world. Textile spinning process of cotton yarn textile learner. Different parts and function of ring frame machine textile. In openend spinning, yarn is produced directly from sliver. Being brought up watching my mom hand knitting different kinds of yarns, i always used to be fascinated by the yarns. The process of making yarns from the textile fiber is called spinning.
Spinning is the process of converting cotton or manmade fibre into yarn then to fabrics, bleaching is done on fabrics to produce textiles and finally clothes are manufactured. It can be used for various processes during spinning. The fabrics were finished by the basic processes used for cotton, i. Ring spinning is a comparatively expensive process because of its slower production speeds and the additional processes roving and winding required for producing ring spun yarns. The roving was prepared by passing the fibres through the. The action or process for the conversion of fibres into yarn. Comparative analysis of the ring spinning process, both classic. Spinning trials indicate that decreases in fiber fineness or increases in micronaire can limit count range and spinning performance in the same way as it might on ring spinning. 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. A speed frame speed frame lf4200 series the technological requirements of speed frame are attenuation of the sliver twisting of the drafted strand winding the twisted roving on a bobbin speed frame lf4200 series is incorporated with stateoftheart technology ensuring higher production level. There are various types of spinning methods for producing various types of yarn.
A specially constructed rig was used to simulate the ring spinning process. The ginned cotton purchased from the traders is brought in the form of bales of 165 kgs to 175 kgs and stored in godowns. Ring spinning is a method of spinning fibres, such as cotton, flax or wool, to make a yarn. The yarn issuing from the drafting rollers passes through. Analysis showed that, yarns produced with the pneumatic compact spinning system had the highest strength and the lowest hairiness. These steps of processing are carried out in the blow room of a spinning mill. Process control and yarn quality in spinning woodhead. If it is desired, the fiber may also be combed which would be in addition to the carding. Now, through a modern manufacturing process, bamboo pulp is capable of producing bamboo fibre for use in yarn and fabric.
This process channel does not include mixing process which is done manually and the packing of cones of readymade yarn. Jul 11, 2018 ring spinning technology provides the widest range in terms of the yarn counts it can produce. Fundamental principles of ring spinning of yarns request pdf. Cottonspinning machinery refers to machines which process or spin prepared cotton roving into workable yarn or thread.
Lakshmi machine works limited offers the following product in ring spinning system. When using most other dyes, if the ring dyeing effect occurs, it would be considered a dyeing defect. Analysis on the spinning process and properties of tencel yarn. Cotton with a low uniformity index is likely to have a high percentage of short fibers. Hackling is the preparation of the flax fibres before the spinning process where the scutched flax is hackled or refined using the variable density of hackling pins.
If noticeable problems occurred at the ring spinning frame, the process was stopped. In case of manual feeding ensure the correct colour coded mixing is available. The slightly twisted stand of fibres at this stage is called roving which is about six to eight times the length and the diameter of the sliver. The presence of trash has a negative effect on spinning performance. The fiber has been engineered specifically for ring spinning. Short staple medium staple long staple extra long staple 1 in.
May 24, 2017 cotton to yarn process yarn manufacturing process or yarn textile is the first steps of textile product processing. First thing in spinning process is converting highly compressed cotton in bales into the form of thoroughly loosened, opened. Ring spinning is a system of spinning that uses a ring spinning frame that drafts rovings fibres prepared into loose strands ready for spinning where the fibres have been laid parallel to some extent, twists the yarn, and winds it on the bobbin continuously and simultaneously in one operation. The process takes a fiber mass roving, reduces the mass through fiber drafting, inserts twist for strength, and winds the yarn onto a bobbin. Cotton spinning machinery refers to machines which process or spin prepared cotton roving into workable yarn or thread. Ring spinning is a continuous process, unlike mule spinning which uses an intermittent action. Improvement of ring frame spindle utilization in cotton short. Blow room, carding and draw frame machine operator textiles. Trash content cotton should be clean and absent of seed coat fragments.
In this paper, we report our recent experimental and theoretical research on air drag, yarn tension and energy consumption in ring spinning. If we notice, we will see that the cotton fiber s are converted into carded yarn, combed yarn and rotor yarn. Ring spinning frame an overview sciencedirect topics. S uitable hardness roller the same species yarn w ith the same model. Reference books of textile technologies man made fibers. Ringspinning processing technical bulletin 341104 introduction the sections that follow relate to the processing of 1. From raw cotton to yarn processing, lot of machineries are involved. Cotton to yarn process yarn manufacturing process how. Ring spinning technology provides the widest range in terms of the yarn counts it can produce. Different parts and function of ring frame machine. Comparison of conventional ring, mechanical compact and. The roving bobbin taken from roving process is mounted on the ring frame either automatically or manually.