2 edition of study of the air-jet type bulked filament yarn process found in the catalog.
study of the air-jet type bulked filament yarn process
Written in English
Thesis(Ph.D.) - Loughborough University of Technology 1970.
|Statement||by H. Sen.|
stretch. Texturizing continuous filament yarns are often referred to as BCF yarns (bulked continuous filament yarns). • The rationale behind texturizing is that all manufactured yarns are made in continuous filament form. Many of these are then cut into staple lengths and put through the complete spinning process, restoring them to. A brief treatment of yarn follows. For full treatment, see textile: Production of yarn. Yarns are made from both natural and synthetic fibre, in filament or staple nt is fibre of great length, including the natural fibre silk and the synthetic fibres. Most fibres that occur in nature are of fairly short length, or staple, and synthetic fibres may be cut into short, uniform lengths.
was bulked continuous filament (nylon and polypropylene), and the remainder was made up of air-jet and other forms of textured yarns. Obviously, false twisting is very important in this field. However, the market has forced many filament yarn makers to move to products nearer to staple yarns in character and consequently the use of. We will give you any of the 2 books from the below list if you fulfill our conditions. If you want to download this book, you need to write an unique article about textile related topics. The article must be at least words or above and contains valuable information. No copy paste is allowed and we will check plagiarism to confirm.
The objective of this research work was to investigate the use of steam as a substitute fluid for air in spun-like textured yarn manufacturing. The new substitute product holds the potential for competitive advantage, lower manufacturing costs and streamlined manufacturing capabilities. Generally high-pressure steam is known to be cheaper to produce than compressed air. structurally stable bulked yarn with spun-like and cylindrical types of air-jet texturing nozzles. Inthe aesthetics is obtained. Pre-twisted supply yarns were present work, Z twisted, S twisted and zero twist used with the earlier versions of jet designs to impart filament feeder yarns .
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The mechanism of the process and the construction of bulked yarns of this type. It is also concluded that the commercially used air-jet on which the model study has been based, is not ideally designed from the stand-point of efficiency, stability and ease of operation.
In Part B, a suggested mechanism of the air-jet bulking. A study of the air-jet type bulked filament yarn process Author: Sen, Huseyin ISNI: Two completely different approaches have been used to study the mechanism of the air-jet method of bulking filament yarns. Part A is an aerodynamic study of the nature of the air flow and of its characteristics, and of the yarn's Author: Huseyin Sen.
Filament yarns are either flat or textured. In flat-filament yarns, each filament is almost perfectly straight, so that it lies flat and smooth in the yarn. They tend to be the most compact and smooth of all types of yarns (Fig. ).Such yarns will be preferred in making high-strength high-modulus surgical sutures, hernia repair meshes and other products in which strength and dimensional.
Topics: 13H - Industrial processes, manufacturing processes, 11E - Fibres, textiles, 20I - Fluid mechanics, A study of the air-jet type bulked filament yarn process [ Yarn production technology!]Author: H Sen. The air-jet texturing process is briefly introduced and its advantages over other texturing processes are summarized.
Description of Test Methods for Air-jet Textured Filament Yarns,13/ 8/ Google Scholar. Heberlein, information sheet, 9/ A Study of Air-jet Type Bulked Filament Yarn Process, doctoral thesis, Loughborough Cited by: The air-jet spun yarn, also termed a fasciated yarn, is composed of a central core of essentially parallel fibres bound together by wrappers, and has many distinctive recurring features in wrapping along the yarn l different classification systems have been applied to air-jet spun yarns but the system suggested by Basu () has been greatly acknowledged.
Air-jet texturing is a unique and purely mechanical texturing method that produces entangled filament bulked yarns of low extensibility with the use of cold supersonic airstream. Thus, flat filament yarns are usually closely packed and have a smooth surface. The bulked yarns, in which the filaments are either crimped or entangled with each other, have a higher volume than the flat yarns of the same linear density.
Texturing is the main method to produce the bulked filament yarns. A textured yarn is made by introducing.
a process of producing a spun yarn by using carefully controlled, rapidly moving jets of air. refers to a fabric of two or more generically different fiber types in which ply yarns consist of strands of each generic type. a yarn made from filament fibers; smooth or bulky types are possible.
The process of twisting silk filaments into a yarn or to the process of twisting and texturing synthetic-fiber-filament yarns. Tow-to-top system Refers to a process of converting filament fibers to staple fibers by cutting or break stretching.
Twistless yarns: The fibres are held together by adhesives, not by the twist, and are often laid over a continuous filament core.
• Wrap-spun yarns: These yarns are made from staple fibres bound by another yarn, which is usually a continuous man-made filament yarn. The yarns can be made from either short or long staple fibres. R.A. Angelova, in Advances in Yarn Spinning Technology, Advantages and limitations of air-jet spinning.
The main advantages of air-jet spinning can be found in two main directions: efficiency and flexibility. The efficiency of the method is attributed to the high production speed of the spinning machines: up to m/min for MVS.
Air-jet yarns are spun about two to three times. air-jet spinning. a process of producing a spun yarn by using carefully controlled, rapidly moving jets of air.
blend. a fabric that consists of two or more generically different fiber types. a uniformly bulky filament yarn in which the bulk is added by crimping or texturizing the filament fibers.
A model machine has been developed to produce air-jet type bulked yarn without using e air. Purely a mechanical false-twister (Bush-type) is used along with predefined overfeed in the bulking. Air-jet Spinning Technology Difference between spun and filament yarn - Duration: Cotton to Yarn Process || Yarn Manufacturing Process || How Make Yarn from Cotton.
Air-Jet Spinning. Air-jet spinning first appeared for production use in the early s. A sliver is fed into a drafting system that feeds the yarn into a vortex created by high-speed air jets, to impart false twist.
Air-jet spinning has grown in popularity because of its high productivity; it. continuous filament yarn is modified to impart texture to filament bundle, which will provide bulk like spun yarn for better comfort characteristics to the fabrics made from them.
In air-jet texturing, filament yarn with certain overfeed is fed in cold supersonic airstream to produce entangled filament bulked yarn of low extension ability. compared with the equally bulked zero twist yarn fabrics, showcomparable air permeability and higher compressional resilience and wrinkle rating.
Keywords:Air-jet texturing, Fabric properties, Textured yarn properties, Twisted textured yarns 1 Introduction The process of air-jet texturing iswell established for bulking continuous filament yarns.
Request PDF | Evaluation of physical bulk of air-jet textured yams | A series of air-jet textured yarns has been prepared from two feed materials based on 3-level Box and Behnken design and the. In this study we report on the effect of feed yarn parameters viz., filament fineness, filament shape and total linear density on physical bulk, instability and strength of air-jet textured yarns.
a process of producing a spun yarn by using carefully controlled, rapidly moving jets of air. refers to a fabric of 2 or more generically different fiber types in which ply yarns consist of strands of each generic type.
another term of a textured-bulk-filament yarn; a yarn with notably greater volume than conventional yarn.Yarn spinning is the process of manufacturing yarn from different types of fibres into a continuous length from one or more type of fibers. Spinning is the most important and the initial step in fabric manufacturing.
The major goals of. The three-dimensional crimp is permanently set by the heat. The stuffer-box method is a fast and inexpensive method for carpeting yarn. Air-jet texturing method. In air-jet texturing, ﬁlament yarns are fed over a tiny blast of air that forces the ﬁlament into loops.
This type of yarn is also called air-textured or air-entangled.