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A kind of production method of flat different dyed super bright dty fiber

A production method and flattening technology, applied in fiber processing, melt spinning, melting of filament raw materials, etc., can solve problems such as inability to present technical effects, and achieve rich appearance features, shiny luster, and high brightness effects

Active Publication Date: 2011-11-30
HANGZHOU ZHONGCAI CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing glossy flat FDY dyes are even and consistent, and cannot present the above-mentioned technical effects

Method used

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  • A kind of production method of flat different dyed super bright dty fiber
  • A kind of production method of flat different dyed super bright dty fiber

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Experimental program
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Effect test

Embodiment Construction

[0018] Please refer to the attached figure 1 Shown, a kind of production method of flat different dyeing super bright DTY fiber of the present invention, it comprises the steps:

[0019] (1) Dry the Dayouguang slices in a dryer, melt the dried Dayouguang slices in a screw extruder and keep the melting temperature.

[0020] Among them, the intrinsic viscosity of the bright slice is 0.64-0.66dL / g, the melting point is 260°C, the carboxyl end value is not more than 27mol / t, the hue b value is ≤9.5, and TiO2 is ≤0.4%.

[0021] Specifically, the dryer can use Beijing Dehoupu Chemical Technology Co., Ltd. stirring type PET chip drying test machine, drying capacity 60kg / Hr, drying temperature range: 150-175 degrees; dry air dew point: ≤ -50°C, drying time for 4-6 hours.

[0022] The screw extruder can specifically adopt the screw extruder of Shanghai JWELL Chemical Fiber Machinery Manufacturing Co., Ltd., its specific model: JWM45 / 25, horizontal L / D=25.

[0023] (2) The MOY semi-f...

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Abstract

The invention relates to a method for producing flat metachromatic superbright DTY (draw texturing yarn) fibers. The method comprises the following steps: (1) drying big bright chips in a dryer, melting the dried big bright chips in a screw extruder, and maintaining the melting temperature; (2) metering and spinning the melted big bright chips, applying oil to the melted big bright chips, windingand balancing the melted big bright chips by a spinning machine to prepare MOY (medium oriented yarn) semi-finished products; and (3) carrying out winding formation after subjecting the MOY semi-finished products to a zero roller, tapping, a first roller, heating by a first hot box, a cooling plate, twisting, a second roller, interlacing, a second hot box and a third roller, thus finally obtaining the flat metachromatic superbright DTY fibers. The fibers produced by the process not only have the peculiar appearances, twinkling luster and higher brightness of the flat fibers, but also maintainthe exclusive crinkling elasticity and certain bulkiness of the DTY; and meanwhile, the fibers have the styles of alternation of deep and light colors and well-arranged color layout after being dyed.

Description

technical field [0001] The invention relates to a production technology of flat polyester filaments, in particular to a production method of flat different dyed super bright DTY fibers. Background technique [0002] There have been many reports on the production technology and product uses of flat polyester filaments, and there are many such products sold in the market, but most of them appear in the form of bright FDY. [0003] The dye uptake rate of the fiber is related to the degree of orientation and crystallinity of the fiber. If the orientation degree of the amorphous region of the fiber is high and the free volume is small, the dye uptake rate of the fiber is low; otherwise, the dye uptake rate is high. The different color absorption effects of the same fiber reflect the difference in the axial orientation and crystal structure of the fiber. If these structural differences occur per unit length in a bundle of fibers, the fibers will exhibit a particular dyeing effect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/253D01D5/08D01D1/04D02G1/02D02J1/00D02J1/08
Inventor 占海华周建红
Owner HANGZHOU ZHONGCAI CHEM FIBER