Definition and types of knitted fabrics circular knitting. Dec 28, 20 fleece a fabric knitted with two types of yarn. This work was carried out with 12 samples of single jersey knit fabrics which were scoured and bleached with naoh and h 2 o 2 35% strength, dyed with. Knitted fabrics are more absorbent and warmer than woven fabrics of comparable weight. Because of the inability of a knitter to form a knitted fabric with no shrinkage, it is important for the dyer and finisher to make an effort to remove as much shrinkage.
We will teach you about how knits are made and about the different types of yarns, so that when. Types of knitting knitted fabrics weft knitting single jersey purl rib interlock warp knitting tricot raschel 4. Looking for some great beginner projects that are easy to follow and fun to make. Knitted fabrics and knitting technology play very important role on the fields of technical and medical textiles and their importance is ever greater. Hand knitting is to make fabric with yarn on two or more needles. Use jersey, which is a single knit, to make clothing with a soft, fluid design, suggests claire shaeffer in her book claire shaeffers fabric sewing guide, such as dresses, tshirts, soft jackets and coats. To satisfy the present sweater fabrics demand, various sweater manufacturing companies are trying heart and soul. Note that some fabric constructions, such as denim, can have spirality intentionally introduced during manufacturing. This lesson is a continuation of our intro to knit fabrics part 1 lesson. Well teach you about the 4 characteristics of knit fabrics, what it means when a knit fabric has 1way, 2way or 4way stretch, and all about the 6 categories of stretch ratio. A number in parentheses indicates the year of last.
Flat and circular weft knitting machines as well as warp knitting machines are used to manufacture knitted yard goods. Fabrics made on circular knitting machines can have inherent nonverticality of wale alignment. In a warp knitted structure, each loop in the horizontal direction is made from different thread and the number of thread used to produce such a fabric is at least equal to the numbers of loops in horizontal row. Pdf study on different types of knitting faults, causes. In warp knitted structure, different thread and the number of thread is made of each loop in the horizontal direction. The effect of yarn count and stitch length has great influence on. Systems for transformative textile structures in cnc knitted fabrics. Stitch length sl is the length of yarn in a knitted loop and yarn count yc is a numerical expression of yarn that indicate fineness or coarseness of yarn. Proper processing of 100% cotton knit fabrics cotton incorporated.
This study investigates the properties of polylactic acid pla multifilament and its warpknitted fabrics. Course spirality is a very common inherent problem in plain knitted fabrics. Knitted garments conform to the shape of the body and are comfortable to wear. Shop jersey knit, double knit, interlock knit and other knit fabrics that will satisfy even the most selective of projects. This lint may adhere or attaches to the fabric surface tightly during knit fabric production. Knitted fabrics and their properties linkedin slideshare. Principles of woven, knitted, and nonwoven fabric formation. Warp knitted fabrics are made in a special knitting machine with yarns from warp beam. Jun, 2015 knitting is the second most important method of fabric formation.
Learn how to knit for beginners 27 easy knitting patterns. B abstract original research d imensional stability as a quality parameter bears immense significance for weft knitting fabric manufacturing industries. Jul 11, 2014 all of these fabrics use different types of natural fibers in place of cotton or polyester, and they are generally more expensive. This lesson is the first in our 7part series on working with knit fabrics. Due to their cost i havent sewn much with these, although i did get a good deal on a bamboo knit which i know lots of sewists love from girl charlee. Characteristics of fabrics knitted with basic knitting. We start by demonstrating the difference between woven and knit fabrics and then how knits are structured. Blowing air for cleaning and different parts after a certain period of time. Circular knitted fabrics,single jersey fabric for sale. For changing the stitch length at same count at three same. In knitting section too much lint is flying to and fro that are created from yarn due to low twist as well as yarn friction.
Geotextiles are fabrics used in the construction of road, drains, harbour works and many other civil engineering purposes. Nonwoven fabrics, also known as fiberwebs, are manufactured directly from fibers. Raschel knitting systems can produce fabrics ranging from fine lacelike material to heavy blankets and even carpets. In a study for defining the parameters influencing the spirality, different fibers exhibit different values of both flexural and torsion rigidity. Application of knitted fabrics in technical and medical textiles karoly lazar hungarian society of textile technology and science abstract. Processing of the cncknitting files for the membranes at aff and final. There are many ways to control the spirality of the single jersey knitted fabrics such as. The properties of honeycomb polyester weft knitted fabrics were studied to understand their advantages. How do i control the spirality of single jersey knitted fabric.
Introduction to knit fabrics university of fashion. New wales can be begun from any of the edges of a knitted fabric. Standard test method for stretch properties of knitted fabrics having low power1 this standard is issued under the. There are a variety of advantages of using warp knitted textiles instead of woven textiles. The following are some predominant causes of spirality in knitted fabrics.
When designing a garment out of knit fabric, there are many things you need to know. The principle of knitting in raschel knits is identical to the principle of knitting in tricot knits. They are trying to add various modern facilities to the sweater fabrics. This is due to the fact that the yarns are put under a high stress factor whilst the fabric is being produced and finished 16.
Manufacture and property of warpknitted fabrics with polylactic. Apr 28, 2020 china circular knitted fabric manufacturer zhenlihua supplies circular knitted fabrics, china knitted fabrics in cotton, fiber, silk and other materials. A horizontal row of loops can be made using one thread runs in horizontal direction. Knitting technology definition and types of knitted.
Spirality occurs in knitted fabric because of asymmetric loops which turns in the wales and course of a fabric into an angular relationship other than 90 degree. Scribd is the worlds largest social reading and publishing site. Characteristics of fabrics knitted with basic knitting structures from combed ring and compact yarns muhammet akaydina denizli vocational school, pamukkale university, 20045 denizli, turkey received 16 april 2008. The term knitting describes the technique of constructing textile structures by forming a continuous length of yarn into columns of vertically intermeshed loops 2. The loops along the length of the fabric are known as wales, and loops across the width are known as courses. Causes and remedies of spirality for knitted fabrics.
Knitted fabrics are preferred in many types of clothing because of its extensibility, lightweight, warmth, wrinkle resistance and ease of care 1. Well then youre sure to love our collection of easy knitting patterns. Properties of honeycomb polyester knitted fabrics a f feng. This project deals with the prediction of knitted fabric weight per unit area using appropriate software called proknit. Assistant professor, department of textile engineering, alam f. A number of loops are first made on one needle, and then the fabric grows by drawing other loops through them as they are passed back and forth along the needles from row to row. Fine yarn is on front side and course yarn on back side. Fabrics are items of commerce used in clothing, furnishing, and industrial utility applications. In general, knitted fabrics are classified into warp knitted fabrics and weft knitted fabrics.
Seven honeycomb polyester weft knitted fabrics and one common. Two knitted fabrics can be joined by embroiderybased grafting methods, most commonly the kitchener stitch. Knit fabrics are composed of intermeshing loops of yarns. Residual torque in the yarn or the twist liveliness. Spirality is a problem in knitted fabrics, especially in the apparel industry.
What links here related changes upload file special pages permanent link page. Aug 30, 2017 clothing is the most popular item to make with knits because of the many varieties of knit fabrics available. The pilling resistance of knitted fabrics such as 1x1rib and interlock decreased while single jersey, single pique and two thread fleece knitted fabrics increased significantly due to 5%elastane. Spirality in cotton knit fabrics before and after compacting using selected yarn count and stitch length materials and methods the single jersey knit fabrics were produced from selected three different yarn count 24s1 26s1, 28s1, and 30s1 by jiunn long taiwan knitting machine with three different stitch length. In reality knitted loops in the fabric is curvilinear in shape but this work has done necessary analysis to consider it like a circle, following thata circle geometry and corresponding formulae has been used in formulating some parameters of circular knitted single jersey fabric. Application of knitted fabrics in technical and medical.
Ozkan celik, nuray ucar, determination of spirality in knitted seniz ertugrul fabrics by image analyses istanbul technical university abstract department of mechanical engineering, spirality is a problem in knitted fabrics, especially in the apparel industry. This software has been designed according to the existing literature, and can determine the weight of knitted fabrics in different relaxing conditions by entering process and material variables, such as the type of fabric and. The following paper focuses on change in spirality due to stitch length and count variation. Knitted yard goods fabrics are produced in both narrow and wide widths.
In most of cases fine yarn is 100% cotton while course yarn is pc 50. Distinguishing raschel fabrics between tricot fabrics is the machinery used. You will learn the meaning of terms like knit and purl, wale and course and how a weft knit differs from a warp knit. Yarn twist multiplier is the principle cause of spirality and it is directly proportional. Spirality and shrinkage problems associated with loose knit plain single jersey cotton fabrics accepted.
Unlike weaving, it can produce loose yet extremely stretchable fabrics with almost vanishing rigidity, a desirable property exhibited by hardly any. Hebei university of science and technology, shijiazhuang, hebei, china. Day by day the demand of sweater fabrics is increasing rapidly. Fabric can be formed by hand or machine knitting, but the basic principle remains exactly the same i. Lesson 8 knitting and basic k information and library. Operation process for computerized knife machine 19 9. Pdf 28 sourcing of knitted fabric vasant kothari academia. Modeling the spirality of cotton knit fabric using fuzzy. Spirality in knitted fabric omics publishing group. In weft knits, each weft yarn lies more or less at right angles to the direction in which the fabric is produced, and the intermeshing yarn traverses the fabric crosswise. Knitted yard goods are used extensively for the manufacture of apparel such as activewear, tshirts, underwear, lingerie, and sleepwear. Knitting terminology courses a series of successive loops laying crosswise in the fabric faceback just like a woven fabric, there is a face and a back to the knitted fabric cut the fineness of weft knits made on a circular knitting machine the higher the gauge or cut number, the finer the fabric.
Architecture, digital design, bending active textile membrane hybrids, digital. Knitting glass fiberarts magazine summer issue 2011 pdf. Unlike weft knits, they are knitted from multiple yarns, with yarns forming loops in adjacent wales. Sep 19, 2014 various knitting machines are used to perform knitting. Types of fleece two thread fleece three thread fleece 17. Investigation on the changes of areal density of knit fabric. Knitted fabric is a textile that results from knitting. Standard test method for stretch properties of knitted. Pdf determination of spirality in knitted fabrics by. Knitted fabrics are formed by interlooping yarns either along the length or across the width of the fabric. Experts estimate that their annual consumption is increasing by 3,8 % in average and it can reach about 24 million tons in 2010. Fabric is at least equal to the numbers of loops in.