One-step preparation method of POY/POY combined yarn and device

A preparation device and technology of mixed fiber yarn, which is applied in the field of synthetic fiber manufacturing, can solve the problems of single variety and insufficient hand feel of POY/FDY mixed fiber yarn, and achieve the effects of diverse raw materials, good product quality stability, and low energy consumption and material consumption

Inactive Publication Date: 2013-09-04
DONGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The problem to be solved by the present invention is that the hand feel of existing POY / FDY mixed fiber yarn is insufficient and the variety is single

Method used

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  • One-step preparation method of POY/POY combined yarn and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as figure 1 Shown is a schematic structural view of a one-step preparation device for POY / POY blended filaments, including a first spinning assembly 1 and a second spinning assembly 4 . The silk output by the first spinning assembly 1 is input into the upper godet 7 through the first oiling nozzle 2 and the first lower guide wire 3 in turn to form the first pre-oriented yarn (POY); the silk output by the second spinning assembly 4 Input the upper godet 7 through the second oiling nozzle 5 and the second lower godet 6 in turn to form the second pre-orientation yarn (POY). After the upper godet 7 combines all the imported yarns, it passes through the network 8 in turn And winding roller 9, obtain POY / POY blended filament.

Embodiment 2

[0028] Raw materials: polyethylene terephthalate chips (intrinsic viscosity 0.72dL / g, melting point 258°C), purchased from Shanghai Petrochemical Co., Ltd.; polybutylene terephthalate chips (intrinsic viscosity 1.0dL / g g, melting point 246°C), purchased from Jiangyin Heshili Polymer Material Co., Ltd.

[0029] Equipment: adopt the preparation device provided in Example 1;

[0030] Preparation method: After the polyethylene terephthalate spinning solution is sprayed out through the first spinning assembly 1 (the spinneret hole is circular), it passes through the first oiling nozzle 2 and the first spinning nozzle with a speed of 2800m / min. The input speed of the lower godet 3 is 2800m / min. The upper godet 7 forms the first pre-oriented yarn (POY) with a specification of 72dtex / 144f; the polybutylene terephthalate spinning solution passes through the second spinning assembly 4. After spraying (the spinneret hole is cross-shaped), pass through the second oiling nozzle 5, the sec...

Embodiment 3

[0032] Raw materials: polytrimethylene terephthalate chips (intrinsic viscosity 1.1dL / g, melting point 241°C), purchased from Changzhou Puda Chemical Co., Ltd.; polybutylene terephthalate chips (intrinsic viscosity 1.0dL / g, Melting point 246 ℃), purchased from Jiangyin and Shili Polymer Material Co., Ltd.;

[0033] Equipment: with embodiment 2;

[0034] Preparation method: After the polytrimethylene terephthalate spinning solution is sprayed out through the first spinning assembly 1 (the spinneret hole is a triangle), it passes through the first oiling nozzle 2 and the first lower guide wire at a speed of 3200m / min The input speed of disc 3 is 3200m / min, and the upper godet 7 forms the first pre-oriented yarn (POY), the specification is 40dtex / 96f; the polybutylene terephthalate spinning solution is sprayed out through the second spinning assembly 4 (The spinneret holes are cross-shaped), after passing through the second oiling nozzle 5, the speed is the second lower godet 6 ...

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Abstract

The invention discloses a one-step preparation method of POY / POY combined yarns and device. The method includes the steps: spinning is carried out with a first spinning assembly using first spinning liquid; spinning is carried out with a second spinning assembly using second spinning liquid; yarns spun through the first spinning assembly and the second spinning assembly pass through lower yarn guide plates of yarn paths respectively, then are combined on an upper yarn guide plate, and then sequentially pass a wire stitching machine and a winding roller to obtain the POY / POY combined yarns. Improvement is made on the basis of an existing production device preparing combined yarns of pre-oriented yarns and fully drawn yarns in a one-step method, the improvement is easy and convenient, compared with the conventional combined yarns of the pre-oriented yarns and the fully drawn yarns, the POY / POY combined yarns prepared in the one-step method are soft in handfeel, materials are various, spinning is flexible, production efficiency is high, the technological process is short, energy consumption and material consumption are low, fixed length and fixed weight are achieved, product quality stability is good, and the POY / POY combined yarns prepared in the one-step method can be directly used for weaving, the combined yarns with different sections, different fineness and different constituents can be prepared, and the combined yarns can be used for simulation fabric or functional products.

Description

technical field [0001] The invention relates to a one-step preparation method of POY / POY mixed fiber yarn and a device thereof, belonging to the technical field of synthetic fiber manufacturing. Background technique [0002] Since China started to use one-step technology to produce mixed fiber yarn, it has achieved rapid development and is one of the most important differentiated fibers. In 2012, the annual output of one-step mixed fiber yarn has reached 300,000 tons, and it is expected to reach more than 1 million tons in 2015. [0003] However, the one-step blended yarn currently on the market is basically pre-oriented yarn (POY) / full-drawn yarn (FDY) polyester blended fiber. The method is: the yarn spun by the first spinning assembly is passed through the Godet, upper godet, first diverter, doubling device, and the filaments spun by the second spinning assembly pass through the first hot roller and the second hot roller in turn, and then meet with the first spinning at t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/08D01D5/253D01D13/00
Inventor 樊娟王学利俞建勇黄莉茜孙德荣
Owner DONGHUA UNIV
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