Air Flow in Yarn Texturing Nozzles - CiteSeerXReasonable design

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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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  • Air-jet yarn texturing and its nozzles - Textile Today

    2015-3-1 · 1. Introduction. Air-jet texturing is one of the most versatile methods known to convert flat syntheticfilament yarns to textured yarns. Over the years, developments in air jet texturing have been related to the developments in nozzle design. With this development yarns from finer denier to extremely coarse denier can be textured.

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

    2018-6-16 · The flow from the texturing nozzles at the usual air-pressures used in texturing is supersonic, turbulent, slightly asymmetric, and of a non-uniform profile. The mean velocity of the flow and the degree of its non-uniformity increase with increasing air-pressure. A nozzle with a curved diverging (trumpet-shaped) exit appears to

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  • Air-jet texturing: Effect of jet type and some process ...

    2016-7-20 · 2 Air Texturing Jets Industrially used air texturing jets, also referred to as nozzles, can be categorized (depending upon their internal design and construction) into two main groups: (i) converging and diverging type air texturing jets in which a converging-diverging flow duct (nozzle) is attached to the yam exit end of the jet

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

    1990-2-1 · 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 …

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  • (PDF) Airjet texturing

    in texturing nozzles theoretically and developed a mathe- matical model of air-jet the flow through cylindrical nozzles, which was verified by experimental results. ... the effect of water Nozzle Design on texturing nylon yarns are very questionable. ... acting as lubricant effect of water Yarn-air flow interaction Yarn is moist inside the ...

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  • AN ANALYSIS OF THE AIR-JET YARN-TEXTURING PROCESS

    2020-4-22 · AN ANALYSIS OF THE AIR-JET YARN-TEXTURING PROCESS PART II: EXPERIMENTAL INVESTIGATION OF THE AIR-FLOW. M. ACAR, R.K. TURTON and G.R. WRAY . Loughborough University, UK . ABSTRACT . An account is given of an experimental investigation of the characteristics of the air-flow in a scaled-up model of a currently used nozzle for the air-jet texturing …

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  • Effect of Nozzle Geometry on Air-Jet Texturing Performance

    2020-4-22 · details of the flow patterns are influenced by the geometry of the nozzle. This relationship between nozzle shape and air flows has been investigated in detail by Acar et al. [1] and Demir et al. [5]. Acar et al. [4] also studied the air flow in texturing nozzles theoretically and developed a mathematical model of the flow

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  • (PDF) Effect of Nozzle Geometry on Air-Jet Texturing ...

    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 ...

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

    2018-2-17 · This paper systematically investigates the effect of a number of geometric parameters on the texturing performance of air-jet texturing nozzles. …

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  • Air-jet texturing: Effect of jet type and some process ...

    2016-7-20 · 2 Air Texturing Jets Industrially used air texturing jets, also referred to as nozzles, can be categorized (depending upon their internal design and construction) into two main groups: (i) converging and diverging type air texturing jets in which a converging-diverging flow duct (nozzle) is attached to the yam exit end of the jet

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

    2018-6-16 · The flow from the texturing nozzles at the usual air-pressures used in texturing is supersonic, turbulent, slightly asymmetric, and of a non-uniform profile. The mean velocity of the flow and the degree of its non-uniformity increase with increasing air-pressure. A nozzle with a curved diverging (trumpet-shaped) exit appears to

    Get Price
  • Air texturing, Intermingling, SSM Staehle, Heberlein, Air ...

    2018-3-2 · Air-Texturing: The major exhibitors of air-texturing machinery at ITMA 2003 in Birmingham U.K were Dietze & Schell Maschinenfabrik GmBH, Germany and SSM Staehle Eltex GmBH, Germany. Dietze & Schell presented their DS 60, DS 90 E, DS 60 D and DS 90 MFB air-texturing units. All of them are primarily designed to texture glass fibers and artificial ...

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  • Method for air-bubble texturing endless filament yarn ...

    A method and machine for treating yarn may include feeding the yarn through both a heat treatment and an air jet texturing nozzle. The texturing nozzle may be supplied with compressed air, producing an air jet with a speed greater than Mach 1 in the yarn channel. The heat treatment may be performed before and/or after feeding the yarn through the texturing nozzle.

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  • (PDF) Impact of Process Parameters and Nozzle Design on ...

    Figure 1 . 1 :11Process Flow of Air-Jet Texturing (fundamentals of air-jet texturing- Figure 2 . 121Taslan IX jet nozzle with axial air flow[17] Dissatisfied with the poor performance of the Taslan IX nozzle, Du Pont decided to develop a new design with improved aerodynamics of the nozzle's …

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  • Effect of nozzle size on texturing performance: comparison ...

    Using four texturing nozzles, both air-jet and steam-jet textured yarns were manufactured. The effect of nozzle size on process and yarn parameters has been studied and compared with air-jet ...

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  • Investigation of the influence of effect-yarn draw and ...

    2014-7-2 · (1986). An analysis of the air-jet yarn texturing process. A brief history of development in the process, Journal of the Textile Institute, 77(1), 28–43. Google Scholar Acar, M, Turton, RK, & Wray, GR. (1986a). An analysis of the air-jet yarn texturing process, part II: an experimental investigation of the air-flow.

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  • Determination of Yarn Interlacing Frequency of Triangular ...

    A numerical approach to predict the yarn interlacing frequency of triangular interlacing nozzle is discussed in this paper. The inviscid, compressible flow field inside air nozzles is computed through solving the steady continuity, momentum and energy equations with a finite volume method. A mathematical model for the prediction of yarn interlacing frequency of air nozzle is proposed, …

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

    2018-6-16 · 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 …

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  • Title: Texturing and intermingling processes by using air-jets

    The air-jet texturing (AJT) and intermingling (INT) processes are two applications of air jets used to modify the structure of synthetic multifilament yarns. ... which are created by purpose designed nozzles. The present work experimentally investigates the interrelation between properties of the yarn produced and air flow and the nozzle ...

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

    2018-6-16 · The flow from the texturing nozzles at the usual air-pressures used in texturing is supersonic, turbulent, slightly asymmetric, and of a non-uniform profile. The mean velocity of the flow and the degree of its non-uniformity increase with increasing air-pressure. A nozzle with a curved diverging (trumpet-shaped) exit appears to

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

    2002-6-1 · Rwei and Pai attempt to understand the flow behavior inside the texturing nozzles by computer simulation. The texturing degree and fluctuation number are calculated for different texturing ...

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  • Air-jet texturing: Effect of jet type and some process ...

    2016-7-20 · 2 Air Texturing Jets Industrially used air texturing jets, also referred to as nozzles, can be categorized (depending upon their internal design and construction) into two main groups: (i) converging and diverging type air texturing jets in which a converging-diverging flow duct (nozzle) is attached to the yam exit end of the jet

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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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  • Figure 9 from Grundsatzliches zur Lufstromung in ...

    Corpus ID: 56069431. Grundsatzliches zur Lufstromung in Texturierdusen (A basic understanding of the air flow in texturing nozzles) @inproceedings{Demir1988GrundsatzlichesZL, title={Grundsatzliches zur Lufstromung in Texturierdusen (A basic understanding of the air flow in texturing nozzles)}, author={A. Demir and M. Acar and R. K. Turton}, year={1988} }

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  • Micro spinning nozzle having 3D profile for fiber ...

    A mathematical model is developed for the complex air flow in cylindrical type texturing nozzles, and experimental data obtained from various nozzles verify the flow predicted by this model.

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  • Determination of Yarn Interlacing Frequency of Triangular ...

    2018-4-24 · A numerical approach to predict the yarn interlacing frequency of triangular interlacing nozzle is discussed in this paper. The inviscid, compressible flow field inside air nozzles is computed through solving the steady continuity, momentum and energy equations with a finite volume method.

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  • US Patent for Air nozzle for the interlacing of ...

    The air nozzle has a continuous yarn channel (3.1) into which terminate laterally an air feed bore (5) and a threading slot (4). The wall of the yarn channel (3.1) contains two cylindrical, for example circular-cylindrical wall sections, namely a baffle wall section (6.1) lying in opposition to the air feed bore (5) and a nozzle wall section (9.1) proximate to the air feed bore (5).

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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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  • Air-jet texturing: Effect of jet type and some process ...

    2016-7-20 · 2 Air Texturing Jets Industrially used air texturing jets, also referred to as nozzles, can be categorized (depending upon their internal design and construction) into two main groups: (i) converging and diverging type air texturing jets in which a converging-diverging flow duct (nozzle) is attached to the yam exit end of the jet

    Get Price
  • Effects of geometry on the flow characteristics and ...

    Air-jet texturing is a versatile process for producing a range of synthetic yarns with a spun-like appearance, which are widely used for apparel and furnishing fabrics and industrial textiles.There is no universal nozzle capable of processing any supply yam of any linear density.The role played by nozzle geometry is still not fully understood.The experimental study presented here seeks to ...

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  • Title: Texturing and intermingling processes by using air-jets

    The air-jet texturing (AJT) and intermingling (INT) processes are two applications of air jets used to modify the structure of synthetic multifilament yarns. ... which are created by purpose designed nozzles. The present work experimentally investigates the interrelation between properties of the yarn produced and air flow and the nozzle ...

    Get Price
  • 3—AN ANALYSIS OF THE AIR-JET YARN-TEXTURING PROCESS

    2008-12-1 · 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 …

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  • Commingled CF/PEEK Hybrid Yarns for Use in Textile ...

    2011-5-31 · - Texturing nozzle (Du Pont Type XV, Venturi 100, Needle 86D) - Intermingling nozzle (Temco LD 32.04, 32.05, 32.06) These nozzles are designed initially for a modification of classical man-made fibers and work after different principles represented in figure 3. During air-jet texturing the airflow, directed

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  • Investigation of the influence of effect-yarn draw and ...

    2014-7-2 · (1986). An analysis of the air-jet yarn texturing process. A brief history of development in the process, Journal of the Textile Institute, 77(1), 28–43. Google Scholar Acar, M, Turton, RK, & Wray, GR. (1986a). An analysis of the air-jet yarn texturing process, part II: an experimental investigation of the air-flow.

    Get Price
  • 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.

    Get Price
  • Disc 2 – Air Jet Texturing – PolySpinTex, Inc.

    The course content has 25 topics ranging from theoretical principles through machine design to calculations and specification development and testing. Introduction to air jet texturing air jet texturing principles individual spindle drive machine line shaft drive machines yarn structure machine description creels machine description POY attachment

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  • Patents Assigned to Heberlein Fibertechnology, Inc ...

    2001-12-26 · Abstract: A method of air jet texturing is described wherein the intensity of texturing is proposed to be increased in that an air flow exceeding Mach 2 is obtained by the design of the nozzle duct. The total opening angle of the nozzle duct (11) directly in front of the texturing zone is designed to be greater than the ideal Laval angle with ...

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  • Commingled CF/PEEK Hybrid Yarns for Use in Textile ...

    2011-5-31 · - Texturing nozzle (Du Pont Type XV, Venturi 100, Needle 86D) - Intermingling nozzle (Temco LD 32.04, 32.05, 32.06) These nozzles are designed initially for a modification of classical man-made fibers and work after different principles represented in figure 3. During air-jet texturing the airflow, directed

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  • Blend irregularity of air-jet textured yarns

    2016-7-20 · Texturing in wet condition improves the blend intimacy. Blend regularit y i ~ influenced by'the combination of type of texturing jet and raw materials used. Keywords: Air-jet texturing, Blend irregul arity, Air texturing jets, Index of blend irregul arity, Texlllred yarn 1 Introduction Air-jet texturing process is a good method of

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  • Linking Yarns from Staple and Filament Fibres by High ...

    shapes and dimensions of the air inlet and the yarn guiding canals, as well as their mutual differentiated positions of yarns, result in different air flow parameters occurring, and as a conse-quence a dissimilarity of the interlu-ced connections and composite yarn parameters. The external construc-tion of the nozzles is also important.

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  • ABSTRACT - NCSU

    2016-8-30 · Air-jet texturing is a well-established filament yarn processing technology that has been around for more than half a century. There is much debate about various aspects of the process in the literature such as the mechanism of loop formation, role of water in air texturing and the influence of process variables on air textured yarn structure. An

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  • Synthetic Filament Texturization Techniques - BIT Blog

    2020-8-21 · Synthetic Filament Texturization Techniques. Texturization techniques Textured Yarn Process Techniques and Product developments. Texturization is also called as a disorientation process because in this process the flat continuous filaments are distorted to have loops, crimps, coils or curls along their full length to improve the bulkiness, porosity, softness and elasticity …

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  • ATY

    2015-4-8 · However the number of filaments in the yarn should be high to produce a stable air-jet textured yarn structure. 2.2.5.2 Parallel-end air-jet texturing yarns In parallel texturing, two or more ends are fed at the same overfeed into the nozzle so as to facilitate a blend of different types of supply material, or of the same material but with ...

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  • DKTE Society’s TEXTILE & ENGINEERING INSTITUTE Rajwada ...

    2021-7-22 · Air supply and energy consumption, Air flow in nozzles and guide channel, performance of yarns in air jet insertion, Optimization of settings, Weft stops and breaks, application of air jet weaving. Drive, Pneumatic circuit for air supply. Technical features of modern air jet weaving machines, Quality of Air 8 Unit 4.

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  • Best Texturing Drywall With A Spray Hopper

    2021-8-16 · Metal handle, solid brass replaceable air regulating components makes for a durable spray gun; Interchangeable 4mm, 6mm, and 8mm nozzles for spraying liquids of different viscosity; spray angle allows for use on both walls and ceilings; Includes heavy duty 5 liter (1.3 gallon) capacity gravity fed hopper cup with handle

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  • (TT305) ADVCNED YARN MANUFACUTRING

    2016-9-22 · Air texturing – air nozzles Laminar vs Turbulent flow – Properties and applications of air textured yarns. Texturamat and dynafil – M.Thermal stress tester – quality control in texturising – textured yarn defects – texturing problems. TEXT BOOKS: 1. C.W.Lawrence, “Technology of Yarn Production”, Wood Head Publishers, London ...

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  • Semester-VI Yarn Formation III (PC TT 601) Name of the ...

    2021-6-14 · texturing methods such as false twist texturing, air-jet texturing etc. and their brief working principles; Comparative properties different textured yarns; Objectives and different methods of producing bulk yarns Principles of manufacturing high bulk yarn; Testing of textured yarns and their application areas. 6 7-9 Total 45 100

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  • Commingled CF/PEEK Hybrid Yarns for Use in Textile ...

    2011-5-31 · - Texturing nozzle (Du Pont Type XV, Venturi 100, Needle 86D) - Intermingling nozzle (Temco LD 32.04, 32.05, 32.06) These nozzles are designed initially for a modification of classical man-made fibers and work after different principles represented in figure 3. During air-jet texturing the airflow, directed

    Get Price
  • ABSTRACT - NCSU

    2016-8-30 · Air-jet texturing is a well-established filament yarn processing technology that has been around for more than half a century. There is much debate about various aspects of the process in the literature such as the mechanism of loop formation, role of water in air texturing and the influence of process variables on air textured yarn structure. An

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  • Department of Textile Technology IIT Delhi

    Design and Development of a Computerized Instrument for Measurement of Fabric Handle by Nozzle Extraction ... Vinayak Ogale and Manick Bhowmick 'Air flow behaviour in commingling nozzles and their influence on properties of commingled yarns' Indian ... V.K.Kothari and R. Alagirusamy 'An analysis of the Air-Jet Yarn-Texturing Process'. Letter to ...

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  • Short Communications - NISCAIR

    2010-12-22 · 60g because the air flow coming of the main nozzle is higher than that of the sub-nozzle. Design parameters of the apparatus —There are different sub-nozzles with different shapes and hence, the air velocity distribution from the sub-nozzles also differs. The position of the sub-nozzle in the apparatus

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  • Loughborough University Research Publications

    versteeg, hk, bilgin, s, acar, m (1994) effects of geometry on the flow characteristics and texturing performance of air-jet texturing nozzles, textile research journal, 64(4), pp.240-246, issn: 0040-5175. doi: 10.1177/004051759406400409.

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  • Study on Reduction of Air Consumption on Air Jet Weaving ...

    2019-8-13 · Frstly, relay nozzles with a hole diameter of 1.4 mm replaced those with 1.0 mm diameter on the looms euipped with single-holed nozzles and 20% reduction in air consumption was obtained. Secondly, blowing times were optimized on other make of air-jet looms equipped with multi-holed relay nozzles and this reduced the air consumption by 20%.

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  • Publication - TEMAG - Textile Materials & Machinery ...

    2021-5-16 · A. DEMİR, 'A Study of Air-jet Texturing Nozzles: The Effects of Nozzle Configuration on the Air Flow', Transactions of ASME: Journal of Engineering for Industry, February 1990, Vol. …

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  • Optimising The Lamination Properties Of Textile Composites

    Optimising The Lamination Properties Of Textile Composites A thesis submitted to The University of Manchester For the degree of Doctor of Philosophy

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  • Paris Revisited

    1999-12-1 · with split-flow air circulation system. The split-flow system gives a separate and precisely adjustable supply of circulating air to the upper and lower nozzles by having two speed-controlled fans in each half of any one compartment. This concept gives the user increased performance, reduced energy consumption, gentle air impingement and ...

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  • MAHLE Catalog Guides - CIF and PunchOut

    The purpose of the catalog guides are to help Suppliers understand the business processes required by MAHLE. Please reach out to the Ariba catalog expert for more information.

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  • Manufacturing Complete

    2021-8-11 · Scribd is the world's largest social reading and publishing site.

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  • Claim and Update Your Business For Free - 17.com.pk

    Claim and Update Your Business For Free . Claim your business here for free. Update your Business Listing and get featured along with Business Profile, Logo, Business Category, Im

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  • Short Communications - NISCAIR

    2010-12-22 · 60g because the air flow coming of the main nozzle is higher than that of the sub-nozzle. Design parameters of the apparatus —There are different sub-nozzles with different shapes and hence, the air velocity distribution from the sub-nozzles also differs. The position of the sub-nozzle in the apparatus

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  • Feasibility of PET super micro yarn production

    A micro-filament PET dtex 110 f 333 yarn definitely poses extraordinary requirements in all phases of its manufacture and textile processing, and today this type of yarn can be produced reliably and economically, despite the notable difficulties associated with package dyeing,the ITJ Features brings authentic articles, stories, cover story, write-ups, textile info, textile report, textile ...

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  • Injection Molding: Mold Design

    2021-8-14 · Venting is required to allow the air in the sprue, runner and cavity to leave the tool as the melt flows into the cavity. Inadequate venting may cause short-shots, poor surface appearance, or weak weld-lines. Potential air traps in the part design can be predicted by flow …

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  • Tekstil Makinaları ve Malzemeleri Araştırma Geliştirme ...

    A. DEMİR, 'Simplified Instability Measurement Devices for Air-jet Textured Yarns', Textile Research Journal, (Communication to the Editor), August 1989, Vol. 59, No:8, 492-494. A. DEMİR, 'A Study of Air-jet Texturing Nozzles: The Effects of Nozzle Configuration on the Air Flow', Transactions of ASME: Journal of Engineering for Industry, February 1990, Vol. 112, 97-104.

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  • Spin-draw and texturing machine

    Spinning exhaust and texturearray machine for manufacturing a textured yarn having a moulding device (1) and several cooperating modules (5.1, 5.2, 5.3), each of which has several production units (8.1, 8.2, 8.3) for stretching and texturing one of the threads and take up mechanism (9) for winding the thread (24), and are located next to each ...

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  • All About Yarns - Benlon India

    2015-11-3 · Air having no turbulence is used to ensure perfect evenness. High quality antistatic lubricating oil is applied to avoid static charges in the yarn. The yarn is taken through heated godets to maintain residual elongation. Air punching is done at regular intervals by intermingling nozzles and finally wound on automatic winder in the take up.

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  • Glossary of apparel terminology

    In this method of texturing, yarn is led through the turbulent region of an air jet at a rate faster than it is drawn off on the far side of the jet. In the jet, the yarn structure is opened, loops are formed, and the structure is closed again. Some loops are locked inside and others are locked on the surface of the yarn.

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  • ITMA Technology

    2007-7-1 · 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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  • Etd

    2014-3-18 · Air texturing is an extremely versatile mechanical yarn bulking process that improves the handle and tactile properties of continuous multifilament yarns. A further objective of the research work was to develop novel structures that will have good surface properties with minimal compromise in the axial strength.

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  • Luftverwirbelung - English translation – Linguee

    The yarn consists of two components that are bound together using swirls of air, where one component possesses shrinkage potential and the other is capable of extension. getzner.at Durch d i e Luftverwirbelung m i t dem PolyJet verbessert sich der Spinnwickelaufbau an der Spinnmaschine und der Spulenablauf in den nachfolgenden Prozessen, auch ...

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