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Super-fine denier FDY (fully drawn yarn) spinning equipment and spinning process

An ultra-fine denier and spinning technology, applied in ultra-fine denier FDY spinning equipment and its process, textile equipment and its process fields, can solve the problem of abnormal cross-section of finished silk thick and thin filaments, low success rate of components on the machine, and inconsistent residence time. and other problems, to achieve the effect of normal cross-section of finished silk, high success rate and consistent residence time

Active Publication Date: 2014-11-12
JIANGSU DELI CHEM FIBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of 30D / 72f, because the spinning assembly adopts a double-channel filter chamber, if the filter sand in the filter chamber is flattened by the original D-type sand flattener during the assembly process, it is easy to have uneven receiving force on both sides. Sand loosening may occur in the other filter chamber
This will lead to inconsistencies in the residence time of the melt passing through the two filter chambers during the production process, resulting in uneven distribution of the melt on the spinneret, which will eventually lead to more floating yarns, low success rate of components on the machine, and thickness of finished yarns. Silk (that is, abnormal cross section), hairy silk, abnormal index, etc.

Method used

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  • Super-fine denier FDY (fully drawn yarn) spinning equipment and spinning process
  • Super-fine denier FDY (fully drawn yarn) spinning equipment and spinning process
  • Super-fine denier FDY (fully drawn yarn) spinning equipment and spinning process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Melt delivery: The melt 14 prepared by polymerization enters the melt filter 15 with a filtration accuracy of 15u to filter out the mechanical impurity particles in the melt, and the pressure is raised to 160- After 190Bar (to ensure that the pressure in front of the metering pump is ≥ 60Bar), the melt temperature is adjusted by the melt heat exchanger 17 to ensure that the melt temperature is 283-285°C, and then the melt is transported to the spinning box 4 through the melt pipeline;

[0028] (2) Metering, filtering and extrusion: Melt metering pump 13 is installed in the spinning box, and the melt is accurately metered by the metering pump. The polyester polyester melt is evenly distributed to twelve spinning assemblies 5 by twelve equal-length melt pipes, and the polyester polyester melt filter chamber 21 in the spinning assembly is filled with metal sand 22 as required by the process, and adjusted The melt enters the spinning assembly pressure, the sand am...

Embodiment 2

[0034] Such as figure 1 As shown, the ultra-fine denier FDY spinning equipment mainly includes melt conveying equipment and spinning equipment. The melt conveying equipment mainly includes melt filters, booster pumps, and melt heat exchangers. The spinning equipment mainly includes spinning Box, metering pump, spinning assembly, ring blowing device and biphenyl evaporator; the melt filter is connected to the inlet of the booster pump through a pipeline, and the outlet of the booster pump is connected to one end of the melt heat exchanger through a pipeline , the other end of the melt heat exchanger is connected to the metering pump and the spinning assembly in turn through the pipeline, the ring blowing device is installed under the spinning assembly, the oil nozzle oiling device is installed under the ring blowing device, and the pre-network is installed under the oil nozzle oiling device The first heat roll and the second heat roll are arranged in turn under the pre-internet...

Embodiment 3

[0036] Such as figure 2 and image 3 As shown, the filter chamber is a double D-type component filter chamber 21 with metal sand 22 inside. The flat sand device is a double D type sand flat device, and the double D type sand flat device mainly includes a flat sand handle 18, a flat sand hammer 19 and a flat sand device bottom plate 20, and the flat sand handle is connected by a flat sand hammer and a flat sand device bottom plate.

[0037]If the filter sand in the filter chamber is flattened with the original D-type sand leveling device, uneven force on both sides is prone to occur. When the melt passes through the two filter chambers, the residence time is inconsistent, so that the melt is distributed unevenly on the spinneret, which will eventually lead to many floating filaments, low success rate of components on the machine, and thick and thin filaments (that is, abnormal cross-section) and wool filaments in the finished filament. , Abnormal indicators, etc.

[0038] T...

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Abstract

The invention relates to spinning equipment and a spinning process, in particular to super-fine denier FDY (fully drawn yarn) spinning equipment and process and belongs to the field of textile. The super-fine denier FDY spinning equipment mainly comprises a melt-delivering device and a spinning equipment body, the melt-delivering device mainly comprises a melt filter, a booster pump and a melt heat exchanger, and the spinning equipment body mainly comprises a spinning manifold, a metering pump, a spinning component, a ring blower unit and a biphenyl evaporator. The process includes the steps of 1), melt delivering; 2), metering, filtering and extruding; 3), cooling and curing; 4), clustering and oiling; 5), netting and winding. The equipment and the process are improved at the same time, so that the aspects of high success rate of loading the components on the equipment, normal section of finished yarns, less wool, indicators and the like are remarkably improved, and product quality can be improved.

Description

technical field [0001] The invention relates to a textile equipment and a process thereof, in particular to an ultra-fine denier FDY spinning equipment and a process thereof, belonging to the field of textiles. Background technique [0002] Polyester 30D / 72f FDY belongs to the category of fine denier yarn (0.45dpf per filament), which has the characteristics of high hand softness, high flexibility, soft luster, large specific surface area, high-density structure, and high water absorption and oil absorption. Has been widely used and fully developed. It is an ideal raw material for the production of high-grade clothing fabrics, and the annual demand is constantly increasing. Most of the products currently produced on the market are conventional varieties, which do not have the above-mentioned advantages in terms of fabric characteristics. [0003] In the 24-head multi-spinning production, it is considered that if the arrangement of single-channel components is adopted, the...

Claims

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Application Information

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IPC IPC(8): D01D13/00D01D4/06
Inventor 沈小春赵金广倪凤军郭建洋王府梅吴立平徐广标杨超明
Owner JIANGSU DELI CHEM FIBER CO LTD
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