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Producing method for spinning heterogeneous colored terylene preoriented continuous yarn by recycled polyester bottle sheet materials

A technology of polyester bottle flakes and colored polyester, which is applied in filament forming treatment, filament/thread forming, textile and papermaking, etc., to achieve the effect of expanding the scope of application, expanding the scope of application and broad development prospects

Inactive Publication Date: 2010-02-03
JIANGSU FEILIN FIBER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, no method has been found to spin special-shaped polyester pre-oriented filaments with a "non"-shaped cross-section using recycled polyester bottle flakes, let alone a method for spinning "non"-shaped cross-sections with recycled polyester bottle flakes. The method of special-shaped colored polyester pre-orientation filaments has never seen the report of using a spinneret with a "non"-shaped spinneret hole to spin a cross-sectional shape of a "non"-shaped polyester fiber (filament and short fiber)

Method used

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  • Producing method for spinning heterogeneous colored terylene preoriented continuous yarn by recycled polyester bottle sheet materials

Examples

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Effect test

Embodiment 1

[0023] This embodiment is the production process of producing 267dtex / 36f special-shaped colored polyester pre-oriented yarn, and its production process is as follows: the recycled polyester bottle flakes (moisture content at 40ppm) and polyester color masterbatch that the intrinsic viscosity is 0.70 and polyester color masterbatch are adopted. The masterbatch accounts for 3% of the total amount of the mixture, and it is fed into an extruder with a diameter of Φ58mm and a screw length-to-diameter ratio (L / D) of 48, and recycled polyester bottle flakes and special color masterbatch Melt in the extruder, filter through a continuous filter (filtering precision 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), and then metered by a gear pump. After entering the spinning box for spinning, the melt is spun through the "non"-shaped spinneret holes on the Φ80mm36-hole spinneret, and then...

Embodiment 2

[0029] This embodiment is the production method of the 540dtex / 96f "non" shaped special-shaped 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 with an intrinsic viscosity of 0.80 Color masterbatch, color masterbatch accounts for 6% of the total amount of the mixture, and it is fed into an extruder with a diameter of Φ58mm and a screw length-to-diameter ratio (L / D) of 48, recycled polyester bottle flakes and special The color masterbatch is melted in a screw extruder, and filtered through a continuous filter (filtering precision is 25 μm, the melt pressure before filtering is 12Mpa, the melt pressure after filtering is controlled at 10Mpa, and the melt temperature is 290°C), and then After being metered by the gear pump, it enters the spinning box for spinning. After the melt is spun through the "non"-shaped spinneret hole on the Φ100mm 96-hole spinnere...

Embodiment 3

[0035] This embodiment is the production method of 165dtex / 48f "Non" shaped special-shaped colored polyester pre-oriented yarn variety, and its production process is as follows: using recycled polyester bottle flakes (moisture content at 45ppm) with an intrinsic viscosity of 0.90 and polyester Color masterbatch, color masterbatch accounts for 10% of the total amount of the mixture, and it is fed into an extruder with a diameter of Φ58mm and a screw length-to-diameter ratio (L / D) of 48, recycled polyester bottle flakes and special The color masterbatch is melted in a screw extruder, filtered through a continuous filter (filtering precision is 25 μm, the melt pressure before filtration is 12Mpa, the melt pressure after filtration is controlled at 10Mpa, and the melt temperature is 291°C), and then After being metered by the gear pump, it enters the spinning box for spinning. After the melt is spun through the "non"-shaped spinneret hole on the spinneret with Φ80mm and 48 holes, i...

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Abstract

The invention discloses a producing method for spinning heterogeneous colored terylene preoriented continuous yarn by recycled polyester bottle sheet materials. Recycled polyester bottle sheets and special masterbatches are used as main materials and made into products similar to heterogeneous colored terylene preoriented continuous yarn products produced by slice spinning of virgin polyester through the fused extruding of a screw extruder, the filtering of an on-line switchable fusant filter, the spinning of a spinneret, drawing, cooling and oiling, yarn building and the like. Spinneret orifices of a used spinneret plate are formed by the combination of holes shaped like a Chinese character ren and are in a concentric circle arrangement mode, the number of the holes shaped like a Chinesecharacter ren is same as that of fiber monofils, and the cross sectional shape of the fibers formed by the spinning-out of the spinneret orifices, the drawing, the cooling and subsequent handlings islike a Chinese character ren. Products produced by the method conform to the requirements of FZ / T54003-93 standard and can replace the heterogeneous terylene preoriented continuous yarn produced by aconventional method. The continuous yarn can be widely used for the production of lying-in woman fabrics and industrial fabrics.

Description

technical field [0001] The invention belongs to the technical field of fiber preparation, in particular to a production method for spinning special-shaped colored polyester pre-oriented filaments from recycled polyester bottle flakes. Background technique [0002] The existing special-shaped polyester filament products spun from recycled polyester bottle flakes are mainly special-shaped polyester pre-oriented filaments with "ten" and "Y" cross-sections. The moisture absorption and perspiration performance of the above fibers is not ideal. , fluffy, poor elasticity; secondly, the above-mentioned fibers usually need to be dyed and finished after being processed into fabrics (grain cloth), which is easy to cause pollution to the environment, so it can no longer meet the needs of the current domestic and foreign markets. Domestic fabric manufacturers have put forward higher requirements for the special-shaped filament products spun from recycled polyester bottle flakes: ① The sp...

Claims

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Application Information

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IPC IPC(8): D01D5/253D01D5/092D01D1/00D01D1/10D01D1/09
Inventor 朱光宇
Owner JIANGSU FEILIN FIBER TECH
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