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Production technology of regenerated polyester fiber filaments

A technology of recycled polyester and production process, which is applied in the direction of single-component polyester artificial filament, fiber chemical characteristics, conductive/antistatic filament manufacturing, etc., which can solve the problem of weak innovation ability, large variety limitations, chemical modification To reduce the number of varieties and other problems, to achieve the effects of reducing pollutant emissions, saving energy, and high added value of products

Inactive Publication Date: 2015-10-14
ANHUI DONGJIN RESOURCE REGENERATION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, although many domestic institutions and enterprises have conducted relevant research on differentiated polyester fibers, there is still a large gap between the high-performance quality and varieties of differentiated polyester fibers in my country compared with developed countries, especially chemical modification. There are few varieties in general, and the development of varieties of production enterprises is mostly imitation, the innovation ability is not strong, and the limitations of varieties are large

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A kind of regenerated polyester fiber filament production process, its process step is as follows,

[0036] 1) Ingredients: According to different products, choose white flakes in PET beverage bottle flakes as the main raw material, and then mix nano-scale additives and inorganic monomers; the weight ratio of the main raw materials to nano-scale additives and inorganic monomers is 100 :3:2;

[0037] 2) Mixed screening: according to the process requirements, the main raw materials are discharged through the screening machine to discharge the abnormal particles and impurities;

[0038] 3) Conveying: The conveying method of the main raw material adopts pulse conveying, which is energy-saving and stable;

[0039] 4) Storage: Send the main raw materials to the high-level silo, which is convenient for continuous production. At the same time, the main raw materials flow from top to bottom, which can save electricity;

[0040] 5) Crystallization drying: the main raw material ...

Embodiment 2

[0059] A kind of regenerated polyester fiber filament production process, its process step is as follows,

[0060] 1) Ingredients: According to different products, polyester bottle flakes are selected as the main raw material, and then mixed with nano-scale additives and inorganic monomers; the weight ratio of main raw materials to nano-scale additives and inorganic monomers is 100:2.5:2 ;

[0061] 2) Mixed screening: according to the process requirements, the main raw materials are discharged through the screening machine to discharge the abnormal particles and impurities;

[0062] 3) Conveying: The conveying method of the main raw material adopts pulse conveying, which is energy-saving and stable;

[0063] 4) Storage: Send the main raw materials to the high-level silo, which is convenient for continuous production. At the same time, the main raw materials flow from top to bottom, which can save electricity;

[0064] 5) Crystallization drying: the main raw material is cryst...

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Abstract

A production technology of regenerated polyester fiber filaments comprises the following steps: 1) burdening: various waste polyester plastics are selected as main raw materials in cooperation with a nano-additive and an inorganic monomer; 2) mix-screening: different raw materials are fully mixed uniformly according to technological requirements; 3) conveying: pulse conveyance is carried out; 4) storage: raw materials are sent into an overhead bunker; 5) crystallization-drying: main raw materials undergo crystallization-drying; 6) addition of the nano-additive; 7) high-temperature melting; 8) high-pressure extrusion: melts are sent into a filter through a high-pressure screw extruder; 9) two-stage filtration; 10) uniform mixing of melts: filtered melts are further mixed uniformly; 11) high-pressure spinning: a spinning module ejects the melts; 12) cooling and oiling: the melts are gradually changed from a liquid to a solid state; 13) high-speed winding: tows ejected from the spinning step are wound into a cylinder; 14) poy filaments: wound filaments are named poy filaments; 15) tensile deformation; 16) grading; and 17) product warehousing for sale.

Description

technical field [0001] The invention relates to the technical field of resource recycling, in particular to a production process for recycled polyester fiber filaments. Background technique [0002] Regenerated polyester fiber belongs to the recycling of waste materials. It is one of the typical circular economy representative industries in the chemical fiber industry. It is very in line with the country's scientific development concept of "comprehensive, coordinated and sustainable development", and has become a key industry encouraged by the country. Recycled polyester fiber has remarkable energy-saving and emission-reduction effects. 1 ton of recycled polyester fiber can save 0.6 tons of oil and reduce 3.2 tons of carbon dioxide emissions. According to the calculation that China produced 5.5 million tons of recycled polyester fibers in 2012, the recycled polyester fiber industry has saved the country 3.3 million tons of oil resources and reduced carbon dioxide emissions b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/92D01F1/10D01F1/09
Inventor 施文东
Owner ANHUI DONGJIN RESOURCE REGENERATION SCI & TECH
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