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The document discusses rotor spinning or open-end spinning technology. It describes the process which includes sliver feeding, opening, fiber transfer to the rotor, fiber collection in the rotor groove, yarn formation, and yarn take-up or winding. Some advantages of rotor spinning are high production speeds, low yarn production costs, elimination of rewinding, and optically even mass. However, rotor-spun yarn also has weaknesses such as low strength, a high tendency to snarl, and difficulty keeping spinning conditions constant. The presentation helped broaden knowledge and thinking about spinning as a profession.
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You find here basic knowledge about Ring and Ring Traveller of ring frame machine.This also help you to understand the role of ring and traveller in ring spinning.
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This presentation summarizes the important parts of a ring frame machine. It discusses the main operations of the ring frame as creeling, drafting, twisting, winding and doffing. It then describes the main parts of the ring frame such as the roving bobbin, roving, creel, guide rail, drafting arrangement, yarn, yarn guide, spindle, traveler and ring. Diagrams are included to illustrate the condenser, apron, ring and traveler, spindle and lappet. The presentation provides an overview of the key components and processes involved in ring frame spinning.
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Roving Frame is machine of Spinning section.
The roving frame is an intermediate engine between draw frame and ring frame. Main objective of this machine is to change sliver in to thinner sliver for the convenience of subsequent processes. The sliver we get from draw frame is still thicker sliver which is not good for yarn manufacture.
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The document provides information about the key components and processes involved in ring frame spinning. It discusses:
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2) How the speed and surface speed of the front, middle, and back rollers are calculated based on various machine parameters.
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2) How the speed and surface speed of the front, middle, and back rollers are calculated based on various machine parameters.
3) Details about the drafting system, thread guide, traveller components and classifications, and ring and traveller systems like the orbit system.
4) New developments like automated drafting using individual motor drives, automatic doffing using a doffing beam and servo disc belt,
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This document provides a catalog and description for a ring spinning frame for cotton produced by H&B American Machine Company. Key details include:
- It describes the various parts of the ring spinning frame and emphasizes the importance of maintenance and quality components for optimal yarn production.
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This document discusses start up breakages on ring spinning frames and methods to control them. It defines start up breakages as thread breaks that occur after starting the machine or after doffing bobbins. Potential causes include issues with drafting timing, back winding, under winding, traveller settings, doffing practices, start speed, suction, gear meshing, undrafted material, and more. Methods are provided to measure start up breakage percentage and suggestions for remedies like changing travelers periodically, adjusting ring and spindle settings, checking material quality, and optimizing climate and cleaning procedures.
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Ring frame
INTRODUCTION
The ring spinning will continue to be the most widely used form of spinning machine in the near future, because it exhibits significant advantages in comparison with the new spinning processes.
Following are the advantages of ring spinning frame
• It is universally applicable, i.e. any material can be spun to any required count
• It delivers a material with optimum characteristics, especially with regard to structure and strength.
• It is simple and easy to master
• The know-how is well established and accessible for everyone
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The document summarizes rotor spinning, which is a technology for creating yarn without using a spindle. It describes how in rotor spinning, a sliver is fed into an opening unit where individual fibers are separated and then reassembled, twisted, and wound onto a package. The key aspects of rotor spinning covered include the fiber collection process in the rotor groove, how twist is inserted as the rotor rotates, and factors that influence fiber placement and yarn quality.
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The document discusses various spinning techniques, including rotor spinning. It provides a history of rotor spinning, describing its development from early prototypes in the 1950s to widespread commercial use by the 1970s. It explains the basic operational sequence of rotor spinning, which involves feeding a sliver of fibers into a rapidly rotating rotor that separates, compacts, and twists the fibers into yarn. The document compares properties of rotor-spun and ring-spun yarns.
Rotor spinning
This document compares ring spinning and rotor spinning methods of yarn formation. It discusses that rotor spinning is a more recent method that omits the step of forming a roving. In rotor spinning, fibers are fed into a rotary beater and deposited onto the sides of a rotating disc called a rotor, where they are twisted without requiring package rotation. Rotor spinning allows for higher twisting speeds with lower power usage compared to ring spinning. It provides characteristics like higher productivity, larger sliver/package sizes, less power consumption, and more automation/flexibility. The document provides details on the parts of a rotor spinning machine and compares various parameters of ring-spun and rotor-spun yarns.
Different Spinning Techniques
Spinning is the first steps of textile product processing. The process of making yarns from the textile fiber is called spinning. There are various types of spinning techniques for producing various types of yarn.
ROTOR SPINNING PROCESS
This document discusses the rotor spinning process. It begins by describing the basic principle of open-end yarn formation and the different types of open-end spinning processes. It then provides details on the specific features, principles, and settings of rotor spinning machines. This includes descriptions of the feed, sliver opening, fiber transport, yarn formation, and winding processes. It discusses the raw material requirements and preparation for rotor spinning. Overall, the document provides a comprehensive overview of the rotor spinning process from fiber preparation through yarn formation and winding.
Advance spinning Dr.Ash
Ring, rotor, compact, air-jet and other forms of spinning are discussed in this presentation along with Illustrations. the crisp and clear explanation helps in understanding the basic know how of advance methods of spinning
ENG 117 Engineering materials.pptx
Ring spinning is the most widely used spinning method for producing yarn from fibers like cotton, flax, and wool. It was invented in 1828 and improved through the late 19th century. The key components of a ring spinning machine are the creel, drafting system, traveler, ring, spindle, and winder. It drafts roving into yarn, imparts twist using the traveler moving around the ring, and winds the yarn onto bobbins. Common yarn counts produced are 5-200 Ne. While versatile, it has limitations like low speed, production, and bobbin size compared to newer methods.
RING FRAME Machine
What is ring frame?
How it Works,
Purpose,
Action of Ring Frame,
Limitations,
Faults,
Shyamoli Textile Engineering College
Ring Spinning Vs All technologies
This document provides an overview and comparison of different yarn manufacturing techniques, including ring spinning, open-end spinning, compact spinning, vortex spinning, air-jet spinning, and friction spinning. It discusses the key features of each technique in terms of speed, quality of yarn produced, strengths and weaknesses. It aims to study why ring spinning remains widely used and profitable despite newer techniques being faster, as ring spinning can produce high quality yarn at high speeds and is applicable to any material.
Comparison between Ring & Rotor Yarn Spinning, Amity university kolkata
Comparison between Ring & Rotor Yarn Spinning, Amity university kolkata
Fancy Spinning
The document summarizes different types of specialty yarns including Bobtex, chenille, slub, siro, and core spun yarns. It provides details on the production processes, properties, and end uses of each yarn type. The Bobtex process produces an integrated composite yarn using a core of filaments or multifilaments covered with staple fibers and a polymer layer. Chenille yarn has a fuzzy surface due to short cut pile yarns wrapped around a core. Slub yarn is produced with intentional thicker and thinner sections. Siro spinning combines spinning and twisting in one step to make a two-fold yarn. Core spinning covers a core yarn, typically filament,
Yarn Manufacturing.pptx
The document outlines the key steps in the yarn manufacturing process:
1) Blowroom opens, cleans, blends and forms sheets of fibers called laps.
2) Carding opens fibers into individual strands, removes impurities and forms slivers.
3) Drawframes equalize, parallelize fibers and remove dust to produce drawn slivers.
4) Speed frames draft, twist and wind slivers into rovings on bobbins.
Jute spinning assingnment_MD. SALIM RANA_DUET
This document provides information about the jute spinning process. It discusses the objectives of spinning which are to reduce the weight of sliver, impart twist to form yarn, and wind the yarn onto bobbins. There are two main types of spinning - sliver spinning which produces yarn directly from sliver, and roving spinning which produces finer yarn from roving. The main tasks of the spinning frame are drafting, twisting, and winding. Drafting systems include slip draft, apron draft, and V-grooved roller draft. Twisting is imparted by the flyers and winding occurs on bobbins. The document also discusses machine parts, operations, and quality checks.
Sewing threads
Sewing thread has evolved over thousands of years from animal fur and plant fibers to modern synthetic and blended threads. The document discusses the history and types of sewing threads used in apparel manufacturing. It describes key characteristics like tensile strength, elongation and abrasion resistance. Common thread types include spun, core-spun, filament and embroidery threads. The document also outlines some common sewing problems and their causes and remedies.
3572
- The document discusses improving the productivity of ring spinning frames through studying various loss factors like end breakage rate, idle percentage, doffing loss percentage, and pneumafill waste percentage.
- Trials were conducted on a ring frame machine spinning 9 combed wool and 24 carded cotton counts. Results showed reductions in all loss factors, ranging from 12-42% improvements, after implementing technical and work practice changes.
- Key factors that influence ring frame productivity like drafting system, spinning geometry, twist generation, and winding were reviewed to identify areas for improvement.
Ring Frame Machine in the Spining INDUSTRY PRESENTATION.pptx
o The ring frame machine is used to convert roving into yarn in the spinning industry. It has a creel, drafting zone, spindles, rings, and travelers as its main components. Ring frame machines spin yarn at the required specification by drafting the roving, inserting twist to the fibers, and winding the yarn onto ring bobbins. Some advantages of ring frame machines are that they produce yarn with good tensile strength and evenness properties. However, disadvantages include higher rates of yarn breakage and lower package contents compared to other spinning processes.
Compact Spinning System
The compact spinning is a process where fiber strand drawn by drafting system is condensed before twisting it.Following methods are used by machine manufacturers to condense the fiber strand.
1. Aerodynamic condensing.
2. Mechanical condensing.
3. Magnetic condensing.
Compact spinning has a promising future because of the higher production and improved quality of compact yarns
Tpm 1
The document provides information about various types of man-made and staple fibres as well as processes involved in yarn manufacturing from raw cotton to finished yarn. It discusses blowroom, carding, drawing, combing and roving processes that process raw cotton into roving. It then describes the ring spinning process which drafts, twists and winds the roving into yarn. The key objectives of each process are to clean, parallelize, and attenuate the fibres to produce a uniform input for the next stage until a finished yarn is obtained.
seminar on research methodology (3)
This document discusses a study that analyzed the effect of varying rotor speeds on the quality parameters of rotor spun yarn. Samples of 20 Ne rotor yarn were produced at 5 different rotor speeds. Tests were conducted to determine values for mass irregularity (Um%), imperfections, hairiness, and strength. Both single and multiple linear regression analyses were used to establish relationships between rotor speed and quality parameters and to develop a multiple regression equation using all the parameters. The results showed that with increased rotor speed, Um%, CVm% and imperfection index declined, while hairiness and strength improved.
Similar to Port city international university trial (20)
Comparison between Ring & Rotor Yarn Spinning, Amity university kolkata
Comparison between Ring & Rotor Yarn Spinning, Amity university kolkata
Ring Frame Machine in the Spining INDUSTRY PRESENTATION.pptx
Ring Frame Machine in the Spining INDUSTRY PRESENTATION.pptx
Recently uploaded
Null Bangalore | Pentesters Approach to AWS IAM
#Abstract:
- Learn more about the real-world methods for auditing AWS IAM (Identity and Access Management) as a pentester. So let us proceed with a brief discussion of IAM as well as some typical misconfigurations and their potential exploits in order to reinforce the understanding of IAM security best practices.
- Gain actionable insights into AWS IAM policies and roles, using hands on approach.
#Prerequisites:
- Basic understanding of AWS services and architecture
- Familiarity with cloud security concepts
- Experience using the AWS Management Console or AWS CLI.
- For hands on lab create account on [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
# Scenario Covered:
- Basics of IAM in AWS
- Implementing IAM Policies with Least Privilege to Manage S3 Bucket
- Objective: Create an S3 bucket with least privilege IAM policy and validate access.
- Steps:
- Create S3 bucket.
- Attach least privilege policy to IAM user.
- Validate access.
- Exploiting IAM PassRole Misconfiguration
-Allows a user to pass a specific IAM role to an AWS service (ec2), typically used for service access delegation. Then exploit PassRole Misconfiguration granting unauthorized access to sensitive resources.
- Objective: Demonstrate how a PassRole misconfiguration can grant unauthorized access.
- Steps:
- Allow user to pass IAM role to EC2.
- Exploit misconfiguration for unauthorized access.
- Access sensitive resources.
- Exploiting IAM AssumeRole Misconfiguration with Overly Permissive Role
- An overly permissive IAM role configuration can lead to privilege escalation by creating a role with administrative privileges and allow a user to assume this role.
- Objective: Show how overly permissive IAM roles can lead to privilege escalation.
- Steps:
- Create role with administrative privileges.
- Allow user to assume the role.
- Perform administrative actions.
- Differentiation between PassRole vs AssumeRole
Try at [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
SCALING OF MOS CIRCUITS m .pptx
this ppt explains about scaling parameters of the mosfet it is basically vlsi subject
Electric vehicle and photovoltaic advanced roles in enhancing the financial p...
Climate change's impact on the planet forced the United Nations and governments to promote green energies and electric transportation. The deployments of photovoltaic (PV) and electric vehicle (EV) systems gained stronger momentum due to their numerous advantages over fossil fuel types. The advantages go beyond sustainability to reach financial support and stability. The work in this paper introduces the hybrid system between PV and EV to support industrial and commercial plants. This paper covers the theoretical framework of the proposed hybrid system including the required equation to complete the cost analysis when PV and EV are present. In addition, the proposed design diagram which sets the priorities and requirements of the system is presented. The proposed approach allows setup to advance their power stability, especially during power outages. The presented information supports researchers and plant owners to complete the necessary analysis while promoting the deployment of clean energy. The result of a case study that represents a dairy milk farmer supports the theoretical works and highlights its advanced benefits to existing plants. The short return on investment of the proposed approach supports the paper's novelty approach for the sustainable electrical system. In addition, the proposed system allows for an isolated power setup without the need for a transmission line which enhances the safety of the electrical network
Object Oriented Analysis and Design - OOAD
This ppt gives detailed description of Object Oriented Analysis and design.
Comparative analysis between traditional aquaponics and reconstructed aquapon...
The aquaponic system of planting is a method that does not require soil usage. It is a method that only needs water, fish, lava rocks (a substitute for soil), and plants. Aquaponic systems are sustainable and environmentally friendly. Its use not only helps to plant in small spaces but also helps reduce artificial chemical use and minimizes excess water use, as aquaponics consumes 90% less water than soil-based gardening. The study applied a descriptive and experimental design to assess and compare conventional and reconstructed aquaponic methods for reproducing tomatoes. The researchers created an observation checklist to determine the significant factors of the study. The study aims to determine the significant difference between traditional aquaponics and reconstructed aquaponics systems propagating tomatoes in terms of height, weight, girth, and number of fruits. The reconstructed aquaponics system’s higher growth yield results in a much more nourished crop than the traditional aquaponics system. It is superior in its number of fruits, height, weight, and girth measurement. Moreover, the reconstructed aquaponics system is proven to eliminate all the hindrances present in the traditional aquaponics system, which are overcrowding of fish, algae growth, pest problems, contaminated water, and dead fish.
Advanced control scheme of doubly fed induction generator for wind turbine us...
This paper describes a speed control device for generating electrical energy on an electricity network based on the doubly fed induction generator (DFIG) used for wind power conversion systems. At first, a double-fed induction generator model was constructed. A control law is formulated to govern the flow of energy between the stator of a DFIG and the energy network using three types of controllers: proportional integral (PI), sliding mode controller (SMC) and second order sliding mode controller (SOSMC). Their different results in terms of power reference tracking, reaction to unexpected speed fluctuations, sensitivity to perturbations, and resilience against machine parameter alterations are compared. MATLAB/Simulink was used to conduct the simulations for the preceding study. Multiple simulations have shown very satisfying results, and the investigations demonstrate the efficacy and power-enhancing capabilities of the suggested control system.
DEEP LEARNING FOR SMART GRID INTRUSION DETECTION: A HYBRID CNN-LSTM-BASED MODEL
As digital technology becomes more deeply embedded in power systems, protecting the communication
networks of Smart Grids (SG) has emerged as a critical concern. Distributed Network Protocol 3 (DNP3)
represents a multi-tiered application layer protocol extensively utilized in Supervisory Control and Data
Acquisition (SCADA)-based smart grids to facilitate real-time data gathering and control functionalities.
Robust Intrusion Detection Systems (IDS) are necessary for early threat detection and mitigation because
of the interconnection of these networks, which makes them vulnerable to a variety of cyberattacks. To
solve this issue, this paper develops a hybrid Deep Learning (DL) model specifically designed for intrusion
detection in smart grids. The proposed approach is a combination of the Convolutional Neural Network
(CNN) and the Long-Short-Term Memory algorithms (LSTM). We employed a recent intrusion detection
dataset (DNP3), which focuses on unauthorized commands and Denial of Service (DoS) cyberattacks, to
train and test our model. The results of our experiments show that our CNN-LSTM method is much better
at finding smart grid intrusions than other deep learning algorithms used for classification. In addition,
our proposed approach improves accuracy, precision, recall, and F1 score, achieving a high detection
accuracy rate of 99.50%.
原版制作(Humboldt毕业证书)柏林大学毕业证学位证一模一样
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3:国家专业人才认证中心颁发入库证书
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8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
Rainfall intensity duration frequency curve statistical analysis and modeling...
Using data from 41 years in Patna’ India’ the study’s goal is to analyze the trends of how often it rains on a weekly, seasonal, and annual basis (1981−2020). First, utilizing the intensity-duration-frequency (IDF) curve and the relationship by statistically analyzing rainfall’ the historical rainfall data set for Patna’ India’ during a 41 year period (1981−2020), was evaluated for its quality. Changes in the hydrologic cycle as a result of increased greenhouse gas emissions are expected to induce variations in the intensity, length, and frequency of precipitation events. One strategy to lessen vulnerability is to quantify probable changes and adapt to them. Techniques such as log-normal, normal, and Gumbel are used (EV-I). Distributions were created with durations of 1, 2, 3, 6, and 24 h and return times of 2, 5, 10, 25, and 100 years. There were also mathematical correlations discovered between rainfall and recurrence interval.
Findings: Based on findings, the Gumbel approach produced the highest intensity values, whereas the other approaches produced values that were close to each other. The data indicates that 461.9 mm of rain fell during the monsoon season’s 301st week. However, it was found that the 29th week had the greatest average rainfall, 92.6 mm. With 952.6 mm on average, the monsoon season saw the highest rainfall. Calculations revealed that the yearly rainfall averaged 1171.1 mm. Using Weibull’s method, the study was subsequently expanded to examine rainfall distribution at different recurrence intervals of 2, 5, 10, and 25 years. Rainfall and recurrence interval mathematical correlations were also developed. Further regression analysis revealed that short wave irrigation, wind direction, wind speed, pressure, relative humidity, and temperature all had a substantial influence on rainfall.
Originality and value: The results of the rainfall IDF curves can provide useful information to policymakers in making appropriate decisions in managing and minimizing floods in the study area.
Data Driven Maintenance | UReason Webinar
Discover the latest insights on Data Driven Maintenance with our comprehensive webinar presentation. Learn about traditional maintenance challenges, the right approach to utilizing data, and the benefits of adopting a Data Driven Maintenance strategy. Explore real-world examples, industry best practices, and innovative solutions like FMECA and the D3M model. This presentation, led by expert Jules Oudmans, is essential for asset owners looking to optimize their maintenance processes and leverage digital technologies for improved efficiency and performance. Download now to stay ahead in the evolving maintenance landscape.
一比一原版(CalArts毕业证)加利福尼亚艺术学院毕业证如何办理
CalArts毕业证学历书【微信95270640】CalArts毕业证’圣力嘉学院毕业证《Q微信95270640》办理CalArts毕业证√文凭学历制作{CalArts文凭}购买学历学位证书本科硕士,CalArts毕业证学历学位证【实体公司】办毕业证、成绩单、学历认证、学位证、文凭认证、办留信网认证、（网上可查，实体公司，专业可靠）
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LLM Fine Tuning with QLoRA Cassandra Lunch 4, presented by Anant
Slides for the 4th Presentation on LLM Fine-Tuning with QLoRA Presented by Anant, featuring DataStax Astra
AI for Legal Research with applications, tools
AI applications in legal research include rapid document analysis, case law review, and statute interpretation. AI-powered tools can sift through vast legal databases to find relevant precedents and citations, enhancing research accuracy and speed. They assist in legal writing by drafting and proofreading documents. Predictive analytics help foresee case outcomes based on historical data, aiding in strategic decision-making. AI also automates routine tasks like contract review and due diligence, freeing up lawyers to focus on complex legal issues. These applications make legal research more efficient, cost-effective, and accessible.
Prediction of Electrical Energy Efficiency Using Information on Consumer's Ac...
Energy efficiency has been important since the latter part of the last century. The main object of this survey is to determine the energy efficiency knowledge among consumers. Two separate districts in Bangladesh are selected to conduct the survey on households and showrooms about the energy and seller also. The survey uses the data to find some regression equations from which it is easy to predict energy efficiency knowledge. The data is analyzed and calculated based on five important criteria. The initial target was to find some factors that help predict a person's energy efficiency knowledge. From the survey, it is found that the energy efficiency awareness among the people of our country is very low. Relationships between household energy use behaviors are estimated using a unique dataset of about 40 households and 20 showrooms in Bangladesh's Chapainawabganj and Bagerhat districts. Knowledge of energy consumption and energy efficiency technology options is found to be associated with household use of energy conservation practices. Household characteristics also influence household energy use behavior. Younger household cohorts are more likely to adopt energy-efficient technologies and energy conservation practices and place primary importance on energy saving for environmental reasons. Education also influences attitudes toward energy conservation in Bangladesh. Low-education households indicate they primarily save electricity for the environment while high-education households indicate they are motivated by environmental concerns.
Applications of artificial Intelligence in Mechanical Engineering.pdf
Historically, mechanical engineering has relied heavily on human expertise and empirical methods to solve complex problems. With the introduction of computer-aided design (CAD) and finite element analysis (FEA), the field took its first steps towards digitization. These tools allowed engineers to simulate and analyze mechanical systems with greater accuracy and efficiency. However, the sheer volume of data generated by modern engineering systems and the increasing complexity of these systems have necessitated more advanced analytical tools, paving the way for AI.
AI offers the capability to process vast amounts of data, identify patterns, and make predictions with a level of speed and accuracy unattainable by traditional methods. This has profound implications for mechanical engineering, enabling more efficient design processes, predictive maintenance strategies, and optimized manufacturing operations. AI-driven tools can learn from historical data, adapt to new information, and continuously improve their performance, making them invaluable in tackling the multifaceted challenges of modern mechanical engineering.
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Applications of artificial Intelligence in Mechanical Engineering.pdf
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Port city international university trial
- 13. Typical view of a Ring Frame
- 17. Apron roller with apron Steel fluted bottom roller Synthetic rubber coated top roller
- 20. Introduction Rotor spinning or open-end spinning is a technology for creating yarn without using a spindle. •It was invented and developed in Czechoslovakia. •Open End spinning is also known as break spinning or free fiber spinning Bakkar Start
- 21. To provide a more economical spinning system than conventional ring spinning through higher productivity To produce yarn of a quality that matches or surpasses that of the conventional ring spinning.
- 23. Sliver feeding. Sliver Openning. Fiver transfer to the rotor. Fiber collection to the rotor groove. Yarn formation. Yarn take –up or winding.
- 24. Bakkar End
- 25. High delivery speeds; Low yarn production costs (lower than those of ring spinning); Elimination of rewinding; Low end breakage rates; Yarn character similar to that of ring-spun yarn; No wrapping fibers; Optically good mass evenness (well suited to knitted goods); Better and softer handle than that of rotor-spun yarn; Smooth yarn appearance. Mohiuddin start
- 26. Low yarn strength; High tendency to snarl; Higher number of fibers needed in yarn cross-section; Difficulty of keeping spinning conditions constant; High air consumption; Increasing unevenness and imperfections with increasing spinning speed, and further reduction in yarn strength.
- 28. Mohiuddin End
- 29. Emon Start
- 33. At last we would like to say that presentation taken at spinning has broadened our knowledge and has widened our thinking as a profession.
- 34. Emon End