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Polypropylene-fabric filament producing technology

A technology of polyester filament and new process, applied in the new process field of producing polyester filament, can solve the problems of low added value, beverage bottle pollution, residual carbohydrates, sediment, etc., achieve bright colors, reduce production costs, and recover Take advantage of value-enhancing effects

Inactive Publication Date: 2007-11-14
陈国祥
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the recycled polyester beverage bottles have undergone a series of procedures of use, discarding, and recycling. The beverage bottles themselves are seriously polluted, with oil stains, residual carbohydrates, sediment, ash, etc., and can only produce some low-demand raw materials with added value. lower product
However, to use recycled polyester beverage bottles to manufacture polyester filaments with higher added value, the current production process of polyester filaments cannot be realized.

Method used

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  • Polypropylene-fabric filament producing technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Sorting, crushing and cleaning polyester beverage bottles to make 16×16mm fragments, then take 500kg of fragments, dry them to make the water content below 80ppm, then add 500g of 4.4 diphenyl ether dicarboxylic acid, Calcium stearate 150g, trimethyl phosphate 20g, propionate 20g, after fully mixing for 50 minutes, then sent to the screw extruder for melting, extruding, controlling the pressure at 12-18mpa, the temperature at 282°C, and then filtering Filter with a precision of 50 μm to remove impurities, and then spray filaments through the die, cool, pelletize, and dehydrate to make particles with a size of 4×2.5×4, and then dry, spin, oil, and coil as usual , balancing, stretching, setting, winding and forming, and graded packaging, it becomes an ordinary polyester filament product that meets the relevant national standards.

Embodiment 2

[0021] Sorting, crushing and cleaning polyester beverage bottles to make 16×16mm fragments, then take 500kg of fragments, dry them to make the water content below 80ppm, then add 4.4 diphenyl ether dicarboxylic acid 425g, Calcium stearate 180g, trimethyl phosphate 20g, propionate 20g, flame retardant (tetrabromobisphenol A bisether, antimony trioxide) 20kg, after fully mixing for 50 minutes, Then send it to the screw extruder for melting, extrude, control the pressure at 12-18mpa, and the temperature at 282°C, then use a filter with a filtration accuracy of 50μm to remove impurities, and then spray filaments through the die, cool, pelletize, and dehydrate , made into particles with a specification of 4×2.5×4, and then conventionally dried, spun, oiled, wound, balanced, stretched, shaped, wound, and graded to make a flame-retardant polyester filament,

Embodiment 3

[0023] Sorting, crushing and cleaning polyester beverage bottles to make 16×16mm fragments, then take 500kg of fragments, dry them to make the water content below 80ppm, then add 550g of 4.4 diphenyl ether dicarboxylic acid, Calcium stearate 350g, trimethyl phosphate 20g, propionate 20g, antibacterial agent (sodium pentachlorophenolate) 25kg, through fully mixing 50 minutes, deliver to screw extruder again and melt, extrusion, control pressure are 10- 16mpa, the temperature is 276°C, and then use a filter with a filtration accuracy of 50μm to remove impurities, and then spray filaments through the die, cool, cut into pellets, and dehydrate to make particles with a specification of 4×2.5×4, and then pass through the conventional Drying, spinning, oiling, winding, balancing, stretching, shaping, winding, and grading packaging are completed to produce a polyester filament with antibacterial function.

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PUM

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Abstract

The present invention discloses a method for the production of the polyester filament. The key to the prior art is use the polyester beverage bottles recovered as the production of raw materials after the way of sorting, crushing, washing, dehydrating, desiccating, adding quenched and tempered additives, melting and squeezing, filtrating, striping, cooling by water, palletizing, dehydrating, desiccating, filtrating. Then melting, filtrating, measuring, weaving, cooling and forming, oiling, winding, balancing, stretching, stereotyping, grade packaging to be the polyester filament by the normal polyester filament producting art. The polyester filament producted by the prior art can entirety instead of the polyester filament producted from polyester slice. And it can meet the state standards. So it reduces the cost of producting of the polyester filament, and enhances the value of the recovered beverage bottles.

Description

technical field [0001] The invention relates to a production process of polyester filaments, in particular to a new process for producing polyester filaments by recycling polyester beverage bottles, which is different from the conventional production of polyester filaments with polyester chips as raw materials. Background technique [0002] The conventional production process of polyester filament yarn has high requirements on raw materials. The viscosity, melting point, carboxyl terminal content, diethylene glycol content, ash content and other indicators in raw materials must meet the spinning grade to successfully produce qualified polyester filament yarn. Silk. Therefore, its raw materials are generally directly made of polyethylene terephthalate sliced ​​particles made of petroleum through a series of petrochemical processes and polycondensation. This kind of granular raw material has high purity, stable and reliable performance, and is the first choice for the product...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/62D01D5/08
Inventor 陈国祥
Owner 陈国祥