apparatus for making melt spinning

Structural formation during melt spinning process | .The structural changes during melt spinning process of polyethylene, polypropylene and polybutene-1 were studied making use of direct measurements. A model spinning apparatus was devised for this purpose. Measurements of diameter, birefringence and surface temperature were carried out. Wide and small angle x-ray photographs were taken at the successive points below the spinneret, moreover, the ...Indian Patents. 251628:"MELT SPINNING PROCESS FOR .A melt spinning process to produce an article selected from elastic tapes having a thickness of from 0.0254 mm to 2.54 mm (0.001 inch to 0.10 inch) and a width of from 0.254 cm to 5.08 cm (0.1 inch to 2.0 inches) and monofilament fibers having a size greater

Structural formation during melt spinning process | .

The structural changes during melt spinning process of polyethylene, polypropylene and polybutene-1 were studied making use of direct measurements. A model spinning apparatus was devised for this purpose. Measurements of diameter, birefringence and surface temperature were carried out. Wide and small angle x-ray photographs were taken at the successive points below the spinneret, moreover, the ...Indian Patents. 251628:"MELT SPINNING PROCESS FOR .A melt spinning process to produce an article selected from elastic tapes having a thickness of from 0.0254 mm to 2.54 mm (0.001 inch to 0.10 inch) and a width of from 0.254 cm to 5.08 cm (0.1 inch to 2.0 inches) and monofilament fibers having a size greater「"melt spinning method"」にしたの ."melt spinning method" をむとい : 56 1 2 へ> ii. Melt spinning method に 2 メルトスピニング - データベースシステム ...

Spinning Method - an overview | ScienceDirect Topics

2.3.3.2 Melt-Spinning Process Melt-spinning is a common spinning method to fabricate polymer fibers. However, PI fibers were rarely prepared by this spinning method due to low solubility and infusibility properties of most PIs because of their rigid backbones.Self-powered portable melt electrospinning for in situ .10/8/2020· Melt e-spinning apparatus and melt e-spinning process The self-powered hand-held melt e-spinning apparatus has a weight of about 450 g and a precise size of 24 cm in length, 6 cm in thickness and 13 cm in height, which is suitable for one-handed operation.A new prototype melt-electrospinning device for the .29/3/2019· A derivative of the melt-blowing technique is the Laval spinning method, which also uses an airstream to draw the fiber from the nozzle []. However, the shape of the longitudinal Laval nozzle accelerates the air, making the process more efficient than conventional melt-blowing.Sparrho | Apparatus for making an absorbent .Each component layer or sheet is manufactured at a fiberizing station (i.e., melt spinning) and laminated together at a combining station. The preferred melt spinning apparatus is spunbond for the top sheet, meltblowing for the core layer, and a combination of spunbond and meltblowing for the bottom sheet.Spinning Apparatus - an overview | ScienceDirect TopicsTypical industrial melt spinning apparatus is shown in Fig. 7.2. 4 In this method, molten polymer is extruded through spinnerets followed by rapid quenching, causing solidification. Fibers can then be stretched and annealed to obtain high mechanical properties. 4, 5 It is usually carried out by melt spinning either into air or through an air gap into a cold water bath.

Melt Spinning Development and Melt Spinning .

Melt spinning, is a forming method using polymer melt as raw material (similar to plastic extrusion) and melt spinning machine (similar to plastic extruder). The melt spinning method can be used for spinning any polymer that can melt or change into a viscous flow state without significant degradation.Structural formation during melt spinning process | .The structural changes during melt spinning process of polyethylene, polypropylene and polybutene-1 were studied making use of direct measurements. A model spinning apparatus was devised for this purpose. Measurements of diameter, birefringence and surface temperature were carried out. Wide and small angle x-ray photographs were taken at the successive points below the spinneret, moreover, the ...USA - Apparatus for and method of melt .In an apparatus for the melt spinning of a plurality of thermoplastic filaments, the apparatus comprising a vessel for containing a quench liquid and a spinneret arranged above the level to which...USB2 - Melt spinning apparatus and process for .The upstream station 14 includes a melt spinning assembly 24 with a meltblowing die 26 and the downstream station 16 includes a melt spinning assembly 28 with a spunbond die 30. To form the...

Dieter Wiemer Inventions, Patents and Patent .

Apparatus and method for melt spinning a synthetic yarn Patent number: Abstract: A melt spinning apparatus for spinning a synthetic yarn, wherein the yarn is formed by combining a plurality of filaments and wound to a package by means of a takeup device downstream of the spinning apparatus.Structural formation during melt spinning process | .Summary The structural changes during melt spinning process of polyethylene, polypropylene and polybutene-1 were studied making use of direct measurements. A model spinning apparatus was devised for this purpose. Measurements of diameter, birefringence ...CPC Definition - D01D MECHANICAL METHODS OR .Continuous melt-spinning processes including a stretching step on the solid fibres D01D 5/18 this group includes both centrifugal spinning and rotating spinnerets for making helically wound filaments (e.g. spiral wire). D01D 5/20 e.g. thick-and-thin fibres, beads ...Amorphous Metals - Preparation by a Melt-Spinning .The structure of amorphic metals is explained using models. The melt-spinning method for making flash-cooled metallic glass is shown. Time-distorted sequences clarify the melt-spinning method, especially the fusion of several melt-jets.USA - Melt-spinning apparatus for polyester .A melt-spinning apparatus is disclosed for reducing the birefringence variability of melt-spun yarn made at high pack throughputs. It involves extruding polymer at an average mass-flow rate through...

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