Study on Straight Knife Cutting Machine | Straight Knife Cutting Machine
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Study on Straight Knife Cutting Machine | Straight Knife Cutting Machine | Cutting Machines In Textile Advantage of straight knife cutting machine. Disadvantage of straight knife cutting machine.
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Determination of fiber length by comb sorter diagram
This document describes an experiment to determine cotton fiber length using a Shirley comb sorter. Key steps include:
1) Straightening and arranging cotton fibers within the comb sorter.
2) Removing fiber groups one by one and laying them out to create a fiber length distribution curve.
3) Analyzing the curve to determine fiber length parameters like maximum, upper quartile, effective, and modal lengths.
4) Calculating American and Indian staple fiber lengths as percentages of the effective length.
Over dyeing on Apparel
(Over Dyeing) to dye for a second or third time with a different color. Over dyeing is such a rewarding way of rescuing an ugly or unsatisfactory colored cloth. It gives uneven look. sometimes over dyeing doesn’t mean all-time dyeing the garment which is previously dyed. Over dyeing may be normal dyeing or piece dyeing process.
Crimp & Crimp Interchange
This document discusses fiber crimp, which is the waviness of fibers in a yarn or fabric. Crimp is measured as crimp percentage, which is the difference between a fiber's straightened length and its length in the fabric. Fiber crimp influences textile processing and properties - it allows synthetic fibers to be processed like natural fibers and contributes to properties like bulk and handling. The document then provides detailed explanations and formulas for measuring and calculating crimp percentage, take-up percentage, crimp ratio, and crimp rigidity. It also discusses how crimp affects fabric properties like abrasion resistance and shrinkage.
Raising Finishing
Raising is a mechanical process that uses revolving cylinders covered with metal points or abrasives to stand up the surface fibers of a fabric, creating a lofty texture. It is done on wet wool or dry cotton fabrics. Raising is used to create effects such as pile, fleece, peach skin, and a warmer, softer hand. There are two main types of raising machines - teasel raising machines and card wire raising machines. The two primary types of raising are napping, which uses metal wires to dig out fibers and create higher pile, and sueding, which uses abrasives like sandpaper for a lower, suede-like pile typically on silk fabrics.
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Determination of fiber length by comb sorter diagram
This document describes an experiment to determine cotton fiber length using a Shirley comb sorter. Key steps include:
1) Straightening and arranging cotton fibers within the comb sorter.
2) Removing fiber groups one by one and laying them out to create a fiber length distribution curve.
3) Analyzing the curve to determine fiber length parameters like maximum, upper quartile, effective, and modal lengths.
4) Calculating American and Indian staple fiber lengths as percentages of the effective length.
Over dyeing on Apparel
(Over Dyeing) to dye for a second or third time with a different color. Over dyeing is such a rewarding way of rescuing an ugly or unsatisfactory colored cloth. It gives uneven look. sometimes over dyeing doesn’t mean all-time dyeing the garment which is previously dyed. Over dyeing may be normal dyeing or piece dyeing process.
Crimp & Crimp Interchange
This document discusses fiber crimp, which is the waviness of fibers in a yarn or fabric. Crimp is measured as crimp percentage, which is the difference between a fiber's straightened length and its length in the fabric. Fiber crimp influences textile processing and properties - it allows synthetic fibers to be processed like natural fibers and contributes to properties like bulk and handling. The document then provides detailed explanations and formulas for measuring and calculating crimp percentage, take-up percentage, crimp ratio, and crimp rigidity. It also discusses how crimp affects fabric properties like abrasion resistance and shrinkage.
Raising Finishing
Raising is a mechanical process that uses revolving cylinders covered with metal points or abrasives to stand up the surface fibers of a fabric, creating a lofty texture. It is done on wet wool or dry cotton fabrics. Raising is used to create effects such as pile, fleece, peach skin, and a warmer, softer hand. There are two main types of raising machines - teasel raising machines and card wire raising machines. The two primary types of raising are napping, which uses metal wires to dig out fibers and create higher pile, and sueding, which uses abrasives like sandpaper for a lower, suede-like pile typically on silk fabrics.
Knitted fabric
Knitted fabrics are made from interlocking loops of yarn. There are two main types of knitting: weft knits and warp knits. In weft knitting, loops are linked across the width, while in warp knitting loops are linked vertically. Weft knits can be made by hand or machine and have stretch and retain heat, but can lose shape. Warp knits are made quickly by machine, are elastic but hold their shape, and lie flat when cut.
Warp stop motion
This document discusses warp stop motion, which is a mechanism that stops the loom immediately when a warp thread breaks during weaving. There are two main types: mechanical and electrical. The mechanical type uses drop wires and reciprocating bars to obstruct loom movement if a thread breaks. The electrical type uses drop wires to complete or break an electrical circuit, activating a solenoid that stops the loom. Both aim to prevent faults from occurring in the fabric if a thread breaks by halting the loom quickly.
Warp knitting design
Warp knitting is a family of knitting methods in which the yarn zigzags along the length of the fabric, i.e., following adjacent columns ("wales") of knitting, rather than a single row ("course"). For comparison, knitting across the width of the fabric is called weft knitting.Warp knitting machines--needles are mounted collectively and rigidly in a horizontal metal bar (the needle bar that runs the full knitting width of the machine).
Study on weft and; warp knitting elements lab report
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This document summarizes an experiment calculating the production capacity of a circular knitting machine. It provides equations for calculating the total fabric length, width, and production capacity based on machine parameters like diameter, gauge, speed, and fabric properties like weight and construction. When the equations are applied to a machine with a 23" diameter, 24 gauge, 35 RPM speed, and producing a 160 gsm plain single jersey fabric, the results show a production capacity of 63 meters of fabric per hour that is 1.33 meters wide, for a total production of 13.4 kg per hour or 107.2 kg per shift.
Mercerisation
Mercerization is a treatment of cotton yarn or fabric with a strong caustic soda solution that improves several qualities of the cotton. It increases luster and dye affinity, improves strength and stability, and results in smoother, rounder fibers. The process involves immersing cotton in a high concentration sodium hydroxide solution under tension control and then washing to neutralize the fabric. This summarizes the key points about mercerization from the provided document.
Presentation winding complete
Winding is an important process in fabric manufacturing that involves transferring yarns from one package to another suitable package for weaving. There are several types of winding packages depending on factors like density, package type, and how the package is built. Parallel winding involves winding yarns parallel to each other on packages with flanges. Near parallel winding lays yarns nearly parallel with one another on packages that may or may not have flanges. Cross winding winds a single yarn at an angle across layers for stability without needing flanges. Proper tensioning devices are also important to apply the required tension during winding to reduce breaks and complete weaving successfully.
Single lift single cylinder(SLSC) jacquard
Jacquard shedding system was developed by William Jacquard. In case of cam and dobby shedding systems, large number of yarns passing through a heald is controlled. Thus it precludes the possibility of controlling individual ends independently. Therefore, complicated woven designs cannot be made using cam or dobby shedding systems. With the jacquard shedding system individual ends can be controlled independently and thus large woven figures can be produced in fabrics.
Flat knitting technology
Flat knitting machines produce flat knitted fabrics using stationary needles and a moving cam system. There are two main types - V-bed machines with diagonally arranged needles and flat-bed machines with parallel needles. The machine components include the needle bed, cam boxes, and various cams to control needle movement and create different stitch types. Operators can selectively introduce knit, tuck, and miss stitches using different cam positions and high/low butt needles. The machine can produce two separate fabrics or a tubular fabric simultaneously through specialized cam and needle bed arrangements.
knitted fabric Manufacturing Process
This document discusses different types of knitting machines and fabrics produced on them. It describes single jersey, pique, and fleece fabrics which are produced on single bed needle machines. Double knit machines have two beds of needles and can produce interlock, rib, and double jersey fabrics. Three thread fleece is made on fleece machines and has long loops on the back side, allowing for high brushing. Characteristics of two thread and three thread fleece fabrics are provided such as weight, yarn used, and fiber percentages. Common issues that can occur with fleece knitting and their remedies are also outlined.
Sizing
Sizing is the process of giving a protective coating on the warp yarn to minimize yarn breakage during weaving.
Sizing is the most important operation in preparing warp yarn for weaving especially with cotton yarn. The smallest error in sizing process may be very harmful. This may increase warp breakage rate on the looms and consequently reduce weaving production and quality. Therefore sizing is termed as the “Heart of Weaving”.
Winch machine
1. The winch dyeing machine dyes fabric pieces that are sewn end to end into a rope-like form.
2. The fabric rope is circulated in the dyeing machine by a horizontal rotor called a winch, which gives the machine its name.
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Experiment Name: Study on Single Jursey Circular Knitting Machine
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2. It explains different weft patterning motions like weft mixing, drop box, and circular box motions that allow inserting different weft yarns to create patterns.
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Knitted fabric
Knitted fabrics are made from interlocking loops of yarn. There are two main types of knitting: weft knits and warp knits. In weft knitting, loops are linked across the width, while in warp knitting loops are linked vertically. Weft knits can be made by hand or machine and have stretch and retain heat, but can lose shape. Warp knits are made quickly by machine, are elastic but hold their shape, and lie flat when cut.
Warp stop motion
This document discusses warp stop motion, which is a mechanism that stops the loom immediately when a warp thread breaks during weaving. There are two main types: mechanical and electrical. The mechanical type uses drop wires and reciprocating bars to obstruct loom movement if a thread breaks. The electrical type uses drop wires to complete or break an electrical circuit, activating a solenoid that stops the loom. Both aim to prevent faults from occurring in the fabric if a thread breaks by halting the loom quickly.
Warp knitting design
Warp knitting is a family of knitting methods in which the yarn zigzags along the length of the fabric, i.e., following adjacent columns ("wales") of knitting, rather than a single row ("course"). For comparison, knitting across the width of the fabric is called weft knitting.Warp knitting machines--needles are mounted collectively and rigidly in a horizontal metal bar (the needle bar that runs the full knitting width of the machine).
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The document provides an overview of Standard Group, a garment factory in Bangladesh. It discusses the company's buyers, product mix, and facilities. The key sections and processes at the factory are described, including garments, dyeing, printing, testing lab, washing, merchandising, and utilities. The factory produces items like denim pants and shirts for major brands and retailers in the US, Europe, and other countries.
Production Calculation of s/j circular knitting m/c.
This document summarizes an experiment calculating the production capacity of a circular knitting machine. It provides equations for calculating the total fabric length, width, and production capacity based on machine parameters like diameter, gauge, speed, and fabric properties like weight and construction. When the equations are applied to a machine with a 23" diameter, 24 gauge, 35 RPM speed, and producing a 160 gsm plain single jersey fabric, the results show a production capacity of 63 meters of fabric per hour that is 1.33 meters wide, for a total production of 13.4 kg per hour or 107.2 kg per shift.
Mercerisation
Mercerization is a treatment of cotton yarn or fabric with a strong caustic soda solution that improves several qualities of the cotton. It increases luster and dye affinity, improves strength and stability, and results in smoother, rounder fibers. The process involves immersing cotton in a high concentration sodium hydroxide solution under tension control and then washing to neutralize the fabric. This summarizes the key points about mercerization from the provided document.
Presentation winding complete
Winding is an important process in fabric manufacturing that involves transferring yarns from one package to another suitable package for weaving. There are several types of winding packages depending on factors like density, package type, and how the package is built. Parallel winding involves winding yarns parallel to each other on packages with flanges. Near parallel winding lays yarns nearly parallel with one another on packages that may or may not have flanges. Cross winding winds a single yarn at an angle across layers for stability without needing flanges. Proper tensioning devices are also important to apply the required tension during winding to reduce breaks and complete weaving successfully.
Single lift single cylinder(SLSC) jacquard
Jacquard shedding system was developed by William Jacquard. In case of cam and dobby shedding systems, large number of yarns passing through a heald is controlled. Thus it precludes the possibility of controlling individual ends independently. Therefore, complicated woven designs cannot be made using cam or dobby shedding systems. With the jacquard shedding system individual ends can be controlled independently and thus large woven figures can be produced in fabrics.
Flat knitting technology
Flat knitting machines produce flat knitted fabrics using stationary needles and a moving cam system. There are two main types - V-bed machines with diagonally arranged needles and flat-bed machines with parallel needles. The machine components include the needle bed, cam boxes, and various cams to control needle movement and create different stitch types. Operators can selectively introduce knit, tuck, and miss stitches using different cam positions and high/low butt needles. The machine can produce two separate fabrics or a tubular fabric simultaneously through specialized cam and needle bed arrangements.
knitted fabric Manufacturing Process
This document discusses different types of knitting machines and fabrics produced on them. It describes single jersey, pique, and fleece fabrics which are produced on single bed needle machines. Double knit machines have two beds of needles and can produce interlock, rib, and double jersey fabrics. Three thread fleece is made on fleece machines and has long loops on the back side, allowing for high brushing. Characteristics of two thread and three thread fleece fabrics are provided such as weight, yarn used, and fiber percentages. Common issues that can occur with fleece knitting and their remedies are also outlined.
Sizing
Sizing is the process of giving a protective coating on the warp yarn to minimize yarn breakage during weaving.
Sizing is the most important operation in preparing warp yarn for weaving especially with cotton yarn. The smallest error in sizing process may be very harmful. This may increase warp breakage rate on the looms and consequently reduce weaving production and quality. Therefore sizing is termed as the “Heart of Weaving”.
Winch machine
1. The winch dyeing machine dyes fabric pieces that are sewn end to end into a rope-like form.
2. The fabric rope is circulated in the dyeing machine by a horizontal rotor called a winch, which gives the machine its name.
3. The winch dyeing machine is commonly used to dye knitted, woolen, and worsted fabrics due to its ability to apply low tension on the fabric.
Study on Basic Elements of Knitting
There are three basic elements of knitting: needles, cams, and sinkers. There are three types of needles - latch needles, spring-bearded needles, and compound needles. Cams convert rotary motion into reciprocating motion and come in two types: engineering cams and knitting cams. Sinkers perform three functions: loop formation, holding down loops, and knocking over loops. Sinkers are divided into three groups based on their functions.
Experiment Name: Study on Single Jursey Circular Knitting Machine
Experiment Name: Study on Single Jursey Circular Knitting MachineBGMEA University of Fashion & Technology
1) The document describes an experiment conducted to study a single jersey circular knitting machine.
2) The machine has one set of needles and one set of sinkers, with the needles and sinkers having different cam systems and the cams being stationary.
3) Key features of the machine include producing plain structure fabric using one set of latch needles and sinkers, and having a stationary overhead creel and negative feeding system.Study on Bartack Sewing Machine & Blind Stitch Machine
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Tertiary motion of a loom
The document discusses various aspects of automatic loom mechanisms, including:
1. It describes different types of weft replenishment mechanisms like mechanical, electrical, and photoelectric feelers and how they work to automatically detect when the weft yarn is running low and trigger a change.
2. It explains different weft patterning motions like weft mixing, drop box, and circular box motions that allow inserting different weft yarns to create patterns.
3. It provides details on how circular box and weft mixing motions work through lever mechanisms to rotate the boxes and change the inserted weft yarn every other pick.
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This document discusses the rapier loom and rapier weaving. It begins by defining a rapier loom as one that uses a rapier to pull the weft yarn across the loom. It can use a single or double rapier system. It then describes the key components and functioning of single and double rigid and flexible rapier systems. It also discusses different weft insertion principles like Dewas and Gabler systems as well as rapier drives, features of modern rapier looms, selvedge formation, weft insertion rates, and equations for calculating weaving production rates.
Fibrefiness
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Email: therealrakib@gmail.com
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1. The document describes an experiment to qualitatively analyze textile fibers using microscopic viewing. It discusses various fiber identification methods like microscopic analysis, solubility tests, burning characteristics, and staining reactions.
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This lab report summarizes an experiment on identifying fibers through burning tests. Key findings include:
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Sinan from the Delivery Hero mobile infrastructure engineering team shares a deep dive into performance acceleration with Gradle build cache optimizations. Sinan shares their journey into solving complex build-cache problems that affect Gradle builds. By understanding the challenges and solutions found in our journey, we aim to demonstrate the possibilities for faster builds. The case study reveals how overlapping outputs and cache misconfigurations led to significant increases in build times, especially as the project scaled up with numerous modules using Paparazzi tests. The journey from diagnosing to defeating cache issues offers invaluable lessons on maintaining cache integrity without sacrificing functionality.
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Three-day training on academic research focuses on analytical tools at United Technical College, supported by the University Grant Commission, Nepal. 24-26 May 2024
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官方认证美国密歇根州立大学毕业证学位证书原版一模一样
原版一模一样【微信：741003700 】【美国密歇根州立大学毕业证学位证书】【微信：741003700 】学位证，留信认证（真实可查，永久存档）offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原海外各大学 Bachelor Diploma degree, Master Degree Diploma
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
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
Recycled Concrete Aggregate in Construction Part II
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学校原版美国波士顿大学毕业证学历学位证书原版一模一样
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本公司拥有海外各大学样板无数，能完美还原海外各大学 Bachelor Diploma degree, Master Degree Diploma
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
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
哪里办理(csu毕业证书)查尔斯特大学毕业证硕士学历原版一模一样
原版一模一样【微信：741003700 】【(csu毕业证书)查尔斯特大学毕业证硕士学历】【微信：741003700 】学位证，留信认证（真实可查，永久存档）offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原海外各大学 Bachelor Diploma degree, Master Degree Diploma
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
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
TIME DIVISION MULTIPLEXING TECHNIQUE FOR COMMUNICATION SYSTEM
Time Division Multiplexing (TDM) is a method of transmitting multiple signals over a single communication channel by dividing the signal into many segments, each having a very short duration of time. These time slots are then allocated to different data streams, allowing multiple signals to share the same transmission medium efficiently. TDM is widely used in telecommunications and data communication systems.
### How TDM Works
1. **Time Slots Allocation**: The core principle of TDM is to assign distinct time slots to each signal. During each time slot, the respective signal is transmitted, and then the process repeats cyclically. For example, if there are four signals to be transmitted, the TDM cycle will divide time into four slots, each assigned to one signal.
2. **Synchronization**: Synchronization is crucial in TDM systems to ensure that the signals are correctly aligned with their respective time slots. Both the transmitter and receiver must be synchronized to avoid any overlap or loss of data. This synchronization is typically maintained by a clock signal that ensures time slots are accurately aligned.
3. **Frame Structure**: TDM data is organized into frames, where each frame consists of a set of time slots. Each frame is repeated at regular intervals, ensuring continuous transmission of data streams. The frame structure helps in managing the data streams and maintaining the synchronization between the transmitter and receiver.
4. **Multiplexer and Demultiplexer**: At the transmitting end, a multiplexer combines multiple input signals into a single composite signal by assigning each signal to a specific time slot. At the receiving end, a demultiplexer separates the composite signal back into individual signals based on their respective time slots.
### Types of TDM
1. **Synchronous TDM**: In synchronous TDM, time slots are pre-assigned to each signal, regardless of whether the signal has data to transmit or not. This can lead to inefficiencies if some time slots remain empty due to the absence of data.
2. **Asynchronous TDM (or Statistical TDM)**: Asynchronous TDM addresses the inefficiencies of synchronous TDM by allocating time slots dynamically based on the presence of data. Time slots are assigned only when there is data to transmit, which optimizes the use of the communication channel.
### Applications of TDM
- **Telecommunications**: TDM is extensively used in telecommunication systems, such as in T1 and E1 lines, where multiple telephone calls are transmitted over a single line by assigning each call to a specific time slot.
- **Digital Audio and Video Broadcasting**: TDM is used in broadcasting systems to transmit multiple audio or video streams over a single channel, ensuring efficient use of bandwidth.
- **Computer Networks**: TDM is used in network protocols and systems to manage the transmission of data from multiple sources over a single network medium.
### Advantages of TDM
- **Efficient Use of Bandwidth**: TDM all
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