Production technology for producing porous fine denier colored terylene pre-oriented filament by utilizing recycled polyester bottle flakes

A technology of polyester bottle flakes and colored polyester, applied in the melting of filament raw materials, filament forming treatment, filament/thread forming, etc., can solve problems that have not yet been discovered, and achieve enhanced drying effect, full texture, and good hand feeling Effect

Inactive Publication Date: 2011-08-31
JIANGSU FEILIN FIBER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

So far, there has been no report on the use of recycled polyester bottle

Method used

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  • Production technology for producing porous fine denier colored terylene pre-oriented filament by utilizing recycled polyester bottle flakes
  • Production technology for producing porous fine denier colored terylene pre-oriented filament by utilizing recycled polyester bottle flakes

Examples

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Effect test

Embodiment 1

[0033]This embodiment is the production process of producing 125dtex / 96f porous fine-denier colored polyester pre-oriented yarn, and its production process is as follows: the recycled polyester bottle flakes (moisture content at 40ppm) and color masterbatch with an intrinsic viscosity of 0.7 are used, and It is fed into a screw extruder with a diameter of Φ58mm and a length-to-diameter ratio (L / D) of 48. The recycled polyester bottle flakes and color masterbatch are melted in the screw extruder and filtered through a continuous filter. The precision is 25μm, the melt pressure before filtration is 12Mpa, the melt pressure after filtration is controlled at 10Mpa, and the melt temperature is 290°C. After being metered by a gear pump, it enters the spinning box for spinning, and the melt passes through a nozzle with Φ80mm and 96 holes. After spraying out from the circular spinneret hole on the wire plate, it is cooled by side blowing, oiled by the oil nozzle, and wound at high spee...

Embodiment 2

[0039] This embodiment is the production process of the 170dtex / 144f fine denier porous colored polyester pre-oriented yarn variety, and its production process is as follows: using recycled polyester bottle flakes (with a moisture content of 50 ppm) and polyester color masterbatches with an intrinsic viscosity of 0.80, And feed them together into a screw extruder with a diameter of Φ58mm and a screw length-to-diameter ratio (L / D) of 48. The recycled polyester bottle flakes and masterbatch are melted in the screw extruder and passed through a continuous filter. Filtration, the filtration accuracy is 25μm, the melt pressure before filtration is 12Mpa, the melt pressure after filtration is controlled at 10Mpa, and the melt temperature is 292°C. After metering by a gear pump, it enters the spinning box for spinning, and the melt passes through Φ100mm144 After the circular hole on the spinneret of the hole is sprayed out, it is cooled by side blowing, oiled by the oil nozzle, and wo...

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Abstract

The invention discloses a production technology for producing porous fine denier colored terylene pre-oriented filament by utilizing recycled polyester bottle flakes. In the invention, the porous fine denier colored terylene pre-oriented filament approximating to that produced by primary polyester chips is produced by utilizing recycled polyester bottle flakes and color master batches as main materials and through the work procedures such as melting and extrusion by a screw extruder, filtration by an on-line switchable melt filter, spinning by a porous fine denier spinneret plate, side-blowing cooling, oiling by an oiling nozzle, winding to shape, and the like. The spinneret orifice of the adopted spinneret plate is formed by the combination of multiple round holes which are arranged in a concentric circle type, the quantity of the round holes is equal to that of monofilaments, and the section of a fiber which is span from the spinneret orifice and formed after the work procedures of drafting, cooling and the like is round in shape. The product produced by the method of the invention can replace the porous fine denier colored terylene pre-oriented filament produced by the conventional method; the fineness of the monofilament is small, the handfeel is wonderful, and the production control is table; and the porous fine denier colored terylene pre-oriented filament can be broadly used in the fields of garment fabric and industrial fabric.

Description

technical field [0001] The invention relates to a production process for producing porous fine-denier colored polyester pre-oriented filaments by utilizing recovered polyester bottle flakes. Background technique [0002] The existing polyester filament products spun from recycled polyester bottle flakes are mainly conventional coarse denier and some polyester pre-oriented filaments with special-shaped cross-sections. The fabrics made of the above-mentioned fibers have poor hand feeling and cannot be used in the field of high-end clothing. Secondly, after the above-mentioned fibers are processed into fabrics (grey cloths), they usually need to be dyed and finished, which is easy to pollute the environment, so it can no longer meet the needs of the current domestic and foreign fabric markets. Domestic fabric manufacturers have put forward higher requirements for polyester filament products spun from recycled polyester bottle flakes, including: ①The fabrics made of polyester fi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D01D5/088D01D5/096D01D5/247D01D1/00D01D1/04D01D1/10
Inventor 朱光宇
Owner JIANGSU FEILIN FIBER TECH
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