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  • Air Flow in Yarn Texturing Nozzles

    Industrial texturing nozzles are reviewed and categorized in two groups, either as converging-diverging or cylindrical type nozzles. A mathematical model is developed for the complex airflow in cylindrical type texturing nozzles, and experimental data obtained from various nozzles verify the flow predicted by this model.

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  • A Study of Air-Jet Texturing Nozzles: The Effects of ...

    A thorough investigation of the existing texturing nozzles will, no doubt, lead to the design of improved nozzles. This paper reports the experimental research carried on the scaled-up versions of the T100 HemaJet with varying geometrical configurations, being the exit shape, situation, and inclination of the inlet holes, and the ratio of the incoming holes area to the nozzle’s main duct area.

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  • (PDF) Fluid Simulation of the Airflow in Texturing Jets

    Simulation results indicate that texturing is enhanced when the cross-sectional area of the inlet hole reaches 1/4, or when the ratio of the length over diameter (L/D) of the yarn …

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  • Effect of Nozzle Geometry on Air-Jet Texturing Performance ...

    This paper systematically investigates the effect of a number of geometric parameters on the texturing performance of air-jet texturing nozzles. In order to facilitate the research, an air-jet text...

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  • (PDF) Airjet texturing

    Key words air-jet texturing, yarn wetting, inter- filament friction, loop formation and fixation, spin finish The air-jet texturing …

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  • Role of Water in Air-Jet Texturing: Part I: Polyester ...

    , A Basic Understanding of the Air Flow in Texturing Nozzles (in German), Melliand Textilber. 69 (4), 233-241 and E 126-129 ( 1988). Google Scholar Demier, A. , Acar, M. , and Wray, G.R. , Air-jet Textured Yarns: The Effect of Process and Supply Yarn Parameters on the Properties of Textured Yarns , Textile Res. J. 58 (6), 318 - 328 ( 1988 ).

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  • Effect of Nozzle Geometry on Air-Jet Texturing Performance ...

    The best texturing comes from nozzles with a slightly diverging main channel and a single air inlet hole located far from the nozzle exit. A curved diverging exit profile is essential for successful texturing. The results of the tests to determine the effect of air inlet angk are inconclusive and require further investigation.

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  • Airsweep® - Material Flow Systems - Control Concepts USA

    The proof is in the flow! AirSweep eliminates bridging, ratholes and material build-up. Each nozzle emits a high-pressure, high-volume, 360-degree burst of compressed air to lift and sweep stalled material back into the flow …

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  • Pipe Air Flow - Parker Hannifin

    Pipe Air Flow ISSUED: January, 1999 Supersedes: June, 1998 The following pages contain 6 sets of …

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  • ATEQ Industrial Testing Instruments: Leak & Flow Testers ...

    ATEQ is the leading global manufacturer of fast and accurate industrial leak testing equipment. Since 1975, ATEQ has been building a leak testing knowledge portfolio filled with hundreds of renowned manufacturing companies and how to leak test thousands of different components.

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  • (PDF) Fluid Simulation of the Airflow in Texturing Jets

    Simulation results indicate that texturing is enhanced when the cross-sectional area of the inlet hole reaches 1/4, or when the ratio of the length over diameter (L/D) of the yarn …

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  • 31—AN ANALYSIS OF THE AIR-JET YARN-TEXTURING PROCESS PART ...

    After a brief summary of the findings and conclusions of the previously reported investigations on the air-jet texturing process, a mechanism of loop formation is postulated. The factors affecting loop formation are analysed in the light of the mechanism described. This mechanism of loop formation is claimed to be valid for all types of texturing nozzle because the underlying requirement to ...

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  • 3—AN ANALYSIS OF THE AIR-JET YARN-TEXTURING PROCESS PART I ...

    After a brief description of the air-jet texturing process, the historical development of industrial texturing nozzles is summarized, and a critical review is given of previous investigations that have been directed to an understanding of the texturing process.It is argued that many of the previous hypotheses were based on a technology that used pre-twisted supply yarns and that they are ...

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  • Yarn texturing nozzle - Barmag AG

    Yarn texturing nozzle: 1987-09-08: Burkhardt et al. 4641504: Yarn heating chamber: 1987-02-10: Runkel et al. 28/272: 4565524: Sealed yarn heating chamber: 1986-01-21: Runkel et al. 28/272: 4560347: Yarn heating chamber: 1985-12-24: Runkel et al. 28/272: 4529378: Heating chamber for processing advancing yarn: 1985-07-16: Runkel et al. 28/272 ...

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  • Suction nozzle and SmartJet - Saurer

    Standard suction nozzles replaced with new, flow-optimised and highly effective suction nozzles SmartJet: The unique SmartJet nozzle retrofitted in the doffer for additional efficiency in upper yarn pick-up . Your benefit New suction nozzle. Energy efficiency. Minimises energy costs by permitting vacuum reduction ; Optimised package quality

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  • Method and device for treating filament yarn with air ...

    In contrast, air jet texturing is known, for example, from EP-PS 88 254. Air jet texturing utilizes the forces of air, in particular shock waves at the outlet from an air nozzle. The shock waves produce filament loops uninterruptedly on each individual filament. During air jet texturing, the yarn is guided into the air nozzle with a large overfeed.

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  • Advanced Texturing Technologies - Fibre2Fashion

    Unlike false twist texturing with the speeds of up to 1200 m/mn, the speeds of air texturing until now at about 400 m/mn, in some cases up to 500 m/mn, lagged clearly behind.

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  • Airsweep® - Material Flow Systems - Control Concepts USA

    The proof is in the flow! AirSweep eliminates bridging, ratholes and material build-up. Each nozzle emits a high-pressure, high-volume, 360-degree burst of compressed air to lift and sweep stalled material back into the flow …

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  • Home

    We specialize in air fluid gas flow. ASC specializes in the design and optimization of equipment and processes involving flow, heat transfer, combustion, and mass transfer. Testing and simulation of air, gas, liquid, or particulate flows has been our focus since 1975.

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  • Air flow in yarn texturing nozzles - CORE

    Air flow in yarn texturing nozzles . By Memis Acar (1248636), R.K. Turton (7206659) and Gordon R. Wray (7206662) Abstract. The air-jet texturing process, a purely mechanical means of texturing continuous filament yarns, is described. Industrial texturing nozzles are reviewed and categorized in two groups, either as converging-diverging or ...

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  • Numerical simulation of airflow behaviour and nozzle ...

    The texturing performance enhanced when the L/D ratio of yarn channel was between 7 and 10, and the ratio of the cross-sectional area of air inlet to the yarn channel was 1/4th. The use of air inlet at an angle between 45° and 60° with a 10° divergence provided at the exit side of the yarn channel further enhanced the texturing process [ 6 ].

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  • Suction nozzle and SmartJet - Saurer

    Standard suction nozzles replaced with new, flow-optimised and highly effective suction nozzles SmartJet: The unique SmartJet nozzle retrofitted in the doffer for additional efficiency in upper yarn pick-up . Your benefit New suction nozzle. Energy efficiency. Minimises energy costs by permitting vacuum reduction ; Optimised package quality

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  • Yarn texturing apparatus with heat sensor in stuffer box ...

    BACKGROUND OF THE INVENTION. The present invention relates to an apparatus for texturing a synthetic yarn. Yarn nozzles are known from German DE-C 36 34 749 and corresponding to U.S. Pat. No. 4,796,340 and wherein the yarn nozzle is provided with a yarn duct which is supplied with hot air and terminates in an expansion chamber which has a larger cross section than the yarn duct. The expansion ...

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  • Characterisation of Air-Jet textured yarn structure ...

    Air-jet texturing, also known as cold fluid texturing, is one of the three major processes used to impart bulk to flat continuous filament yarns via a supersonic turbulent air flow.

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  • Nonuniform Flow - an overview

    Air-jet texturing is a purely mechanical process that can be used to combine reinforcing and matrix-forming filaments. Figure 12.3(a) shows the schematic of the air-jet texturing process, and the structure of the air-textured yarn is shown in Fig. 12.3(b). In this process, supply yarn is overfed in the turbulent zone where compressed air is ...

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  • Asian Economic and Social Society

    For constant velocity and straight flow of weft yarn sub nozzles play the vital rule in air jet loom. An air jet loom requires 40-100 m 3 /h of compressed air with about 0.6 MPa of air pressure for weaving fabric, depending on the yarn type, fabric type and loom speed [ 54 ].

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  • Characteristics of pre-heated air jet textured yarns ...

    Request PDF | Characteristics of pre-heated air jet textured yarns | In order to understand the influence of pre-heating temperature on the characteristics of air jet textured yarns, the polyester ...

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  • Yarn texturing by moving cavity jet with fluid removal ...

    A method and apparatus for removing fluid and cooling the wad of textured yarn on the barrier screen of a moving cavity texturing jet by deflecting the hot fluid (such as steam) away from the underside of the screen with rotating turbine blades and by drawing ambient air across the screen with a vacuum line under the screen has been discovered.

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  • US4347649A - Nozzle for texturing thread - Google Patents

    The present invention relates to a nozzle for texturing a thread by a gaseous fluid flow. The nozzle is provided with an angular channel for guiding a thread, a channel for feeding gaseous fluid thereto, opening obliquely into the angular channel, and at the exit of the angular channel is located a texturing bridge. A second channel for guiding a second thread is provided, which opens ...

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  • Air flow in yarn texturing nozzles - CORE

    Industrial texturing nozzles are reviewed and categorized in two groups, either as converging-diverging or cylindrical type nozzles. A mathematical model is developed for the complex airflow in cylindrical type texturing nozzles, and experimental data obtained from various nozzles verify the flow predicted by this model.

    Get Price
  • Effect of air-jet texturing on adhesion behaviour of ...

    Koc et al. (2008) analysed the effect of airtexturing on adhesion behaviour to rubber and concluded that air-jet texturing increase the surface area of the yarn structure and higher adhesion of ...

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  • The Air-Jet Texturing and Twisting Machine's and Model ...

    2. SYSTEM DESCRIPTION Air-jet texturing provides a means of creating texture in yarns. Further, it is a useful means of producing a yarn structure near to that associated with staple yarns. This is an important concession to the tastes of the ultimate consumer. Twisting and air-jet texturing can be combined.

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  • Nonuniform Flow - an overview

    Air-jet texturing is a purely mechanical process that can be used to combine reinforcing and matrix-forming filaments. Figure 12.3(a) shows the schematic of the air-jet texturing process, and the structure of the air-textured yarn is shown in Fig. 12.3(b). In this process, supply yarn is overfed in the turbulent zone where compressed air is ...

    Get Price
  • Asian Economic and Social Society

    For constant velocity and straight flow of weft yarn sub nozzles play the vital rule in air jet loom. An air jet loom requires 40-100 m 3 /h of compressed air with about 0.6 MPa of air pressure for weaving fabric, depending on the yarn type, fabric type and loom speed [ 54 ].

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  • Patents Assigned to Heberlein Fibertechnology, Inc ...

    Abstract: The new invention proposes that filament yarns, in particular partially stretched yarns known as POY yarns, be subjected to stretch texturing via an air treatment nozzle. The air treatment nozzles are designed in miniaturized form, have a continuous yarn duct in which there open a plurality of transverse bores for the supply of high pressure air in the range over 14 bar, preferably ...

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  • Orifice, Nozzle and Venturi Flow Rate Meters

    Measurement of fluid flow using small bore precision orifice meters. ASME MFC-14M-2001. International Organization of Standards (ISO 5167-1:2003). Measurement of fluid flow by means of pressure differential devices, Part 1: Orifice plates, nozzles…

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    Introduction. Air flow in buildings is complex, time dependent and multi-directional. The understanding of air flow …

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  • ATY

    Air-jet texturing is one of the most versatile methods known to convert flat synthetic filament yarns to textured yarns. This research provides a parametrical analysis of the effect of a single process parameter on the tenacity, modulus and elongation of the yarn.

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  • Henk VERSTEEG

    The results of an experimental investigation of the air-jet texturing process using residual spin finish, yarn-to-yarn static and kinetic friction, filament strength, filament diameter, and on ...

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  • Hybrid yarn for thermoplastic fibre composites. Summary of ...

    A new type of hybrid yarn for production of fibre composites with thermoplastic matrix material is developed and tested. A hybrid yarn is a commingled textured yarn consisting of structural fibres and thermoplastic fibres. In a subsequent heating and consolidation process the plastic fibres melt and become the matrix material in the formed fibre

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  • Department of Textile Technology IIT Delhi

    A.K.Sengupta, V.K.Kothari and R. Alagirusamy 'Influence of Drawing Variables on the Properties of Air Textured Yarns made from POY Polyester Feeder Yarns' Man Made Fibre Year Book of CTI (1989) p80-83. A.K.Sengupta, V.K.Kothari and R. Alagirusamy 'An analysis of the Air-Jet Yarn-Texturing Process'. Letter to the editor, Journal of the Textile ...

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  • ATME-I 2000 Exhibitor Overview

    also offers air-texturing jets for the production of Taslan® textured yarns with spun yarn character, at speeds of up to 1,000 m/min. The company offers friction discs made of special materials that guarantee durability and a long life span at high texturing speeds.IKOS Inc.,

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    Nozzle replacement, production losses, fabric staining will also result in causing product rejections. Production of man-made raw materials for use in textiles also uses compressed air. One of the applications in the pneumatic transport of PVC, PTA chips.For texturing process, the yarn is intermingled using a jet of air through the nozzle.

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    Since the air pressure in a duct directly affects the flow of air, measuring the air pressure is important. Air pressure in a tire is measured in psi (pounds per square inch). Air pressure in a duct is measured in inches water gauge (inches wg). Both psi and inches wg measure the same thing - the amount of pressure on a given amount of area.

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    The Fancy Yarn Profile utilizes an innovative, easy-to-use measuring method to collect information related to slub yarn quality. The company also will show the new Uster Tester 5-S800, a high-precision instrument that measures quality parameters such as evenness and yarn imperfections at a speed of 800 m/min; and the FM sensor, used with the 5 ...

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    When the air handler or return duct is located in the garage, the ductwork for the HVAC system must be sealed to have air leakage of no more than 6% of the air handler airflow when measured at 0.1 in. w.c. (25 Pa, whether or not the air handler is used for ventilation. ASHRAE 62.2-2010

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    For texturing process, yarn is intermingled using a jet Of air through nozzle. Blockage due to oil, moisture will cause uneven intermingling and destroy the yarn and staining. Application Spinning Weaving ISO 8573 2-4-2 Processing Knitting Auto Coner ISO 8573 1-2-1 ISO 8573.1 Quality Classes Oil (Including vapour) mg/ml 0.01 0.1 1.0 25 Application

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  • US3801030A - Yarn winding process and a machine adapted ...

    In winding a yarn onto a bobbin, the free end is first drawn and held by a suction device adjacent the rotating bobbin. A jet of air moves the yarn in close proximity to the bobbin for engagement by a catcher. A cutter severs the yarn adjacent the catcher and the yarn is wound on the bobbin while the waste is carried away by the suction device.

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