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Preparation process and production method of high-strength polyester interlaced yarn

A polyester network yarn and preparation technology, which is applied to the preparation process and production field of high-strength polyester network yarn, can solve the problems of increasing broken ends and wool, stuffy feeling when wearing, and reducing melt flow rate, etc., so as to improve quality and Effect, good breathability and moisture absorption, and the effect of improving comfort

Inactive Publication Date: 2021-06-29
ZHEJIANG QIULU DRESS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the continuous improvement of people's living standards and the continuous improvement of consumers' requirements, some shortcomings of polyester are more and more exposed, such as: poor moisture absorption and breathability, soft hand feeling than cotton, etc.
[0003] The flatness of special-shaped fiber products means that the aspect ratio of the fiber cross-section is too large, and the woven fabric will be soft. If the flatness is too small, the flow rate of the melt in the channel will be reduced, and the monofilament will be easily broken, resulting in injection heads. Increase broken ends and hairs, while the dyeability of polyester is poor, dye molecules are not easy to enter the fiber, poor hygroscopicity, stuffy feeling when wearing, and easy to be charged with static electricity, stained with dust, affecting appearance and comfort

Method used

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] 1) Dry slices: simple index of molecular weight [n]=KMa, K-coefficient (when measured with o-chlorophenol or phenol tetrachloroethane), K takes a constant 1.27*10-4) M-weight average molecular weight a-constant (Usually 0.85) The purpose of drying: to remove moisture, improve the crystallinity and softening point of the slice;

[0054] 2) Melt extrusion: After drying and slicing, the screw of the screw extruder is melted into a spinning stock solution. Melting point: refers to the temperature at which the polymer chain can move freely;

[0055] 3) Depending on the equipment conditions, the pre-crystallization temperature can be as high as 165~180°C by using ebullated bed pre-crystallization, and the time is 10-15min, and the pre-crystallizer is filled by stirring;

[0056] 4) Mixing: strengthen the uniformity of the melt;

[0057]5) Metering: The spinning stock solution is sprayed out from the spinneret after the flow rate is adjusted by the metering pump to ensure uni...

Embodiment 2

[0065] 1) Dry slices: simple index of molecular weight [n]=KMa, K-coefficient (when measured with o-chlorophenol or phenol tetrachloroethane), K takes a constant 1.27*10-4) M-weight average molecular weight a-constant (Usually 0.85) The purpose of drying: to remove moisture, improve the crystallinity and softening point of the slice;

[0066] 2) Melt extrusion: After drying and slicing, the screw of the screw extruder is melted into a spinning stock solution. Melting point: refers to the temperature at which the polymer chain can move freely;

[0067] 3) Depending on the equipment conditions, the pre-crystallization temperature can be as high as 170~180°C by using ebullated bed pre-crystallization, and the time is 8-15min, and the pre-crystallizer is filled by stirring;

[0068] 4) Mixing: strengthen the uniformity of the melt;

[0069] 5) Metering: The spinning stock solution is sprayed out from the spinneret after the flow rate is adjusted by the metering pump to ensure uni...

Embodiment 3

[0077] 1) Dry slices: simple index of molecular weight [n]=KMa, K-coefficient (when measured with o-chlorophenol or phenol tetrachloroethane), K takes a constant 1.27*10-4) M-weight average molecular weight a-constant (Usually 0.85) The purpose of drying: to remove moisture, improve the crystallinity and softening point of the slice;

[0078] 2) Melt extrusion: After drying and slicing, the screw of the screw extruder is melted into a spinning stock solution. Melting point: refers to the temperature at which the polymer chain can move freely;

[0079] 3) Depending on the equipment conditions, the pre-crystallization temperature can be as high as 168~180°C by using ebullated bed precrystallization, and the time is 9~15min, and the precrystallizer is filled by stirring;

[0080] 4) Mixing: strengthen the uniformity of the melt;

[0081] 5) Metering: The spinning stock solution is sprayed out from the spinneret after the flow rate is adjusted by the metering pump to ensure unifo...

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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Abstract

The invention discloses a preparation process and a production method of a high-strength polyester interlaced yarn, and belongs to the technical field of polyester interlaced yarn preparation. The preparation process comprises the following steps of drying and slicing, melt extrusion, mixing, metering, filtering, spinning, cooling and forming, oiling, winding and UDY. The following technological processes are suitable for conventional spinning, medium-speed spinning, high-speed spinning and ultra-high-speed spinning, and for dry slicing, the simple index [n] of molecular weight is equal to KMa, K-coefficient (when o-chlorophenol or phenol tetrachloroethane is used for determination). The high-strength polyester interlaced yarn has the advantages that the dyeing degree is high and the breathability and hygroscopicity are good, the coloring effect of polyester can be improved when the polyester is dyed, the color of the fabric is brighter and brighter, and the color of the fabric is improved; and meanwhile, the breathability of the polyester fabric is improved, the polyester fabric is more comfortable to wear, the comfort of the polyester is improved, so that quality and effect of polyester preparation are improved, and the delivery and production requirements of people are met.

Description

technical field [0001] The invention relates to the technical field of polyester network yarn preparation, in particular to a preparation process and a production method of high-strength polyester network yarn. Background technique [0002] As the name implies, polyester network yarn is made of polyester network yarn. Polyester network yarn is generally used in clothing, industry and textile industries. It is a kind of polyester fiber commodity. With the rapid development of the textile industry, more patterns of fabrics emerge in endlessly. Fiber raw materials are also derived from corresponding types. Polyester has the characteristics of high modulus, high-strength elasticity, good shape retention, and is not easy to wrinkle. It is an ideal textile material, and various high-end fabrics can be developed, and the market prospect is promising. However, with the continuous improvement of people's living standards and the continuous improvement of consumers' requirements, som...

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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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/08D01D1/00D01F6/62
CPCD01D5/08D01D1/00D01F6/62
Inventor 陈燕红
Owner ZHEJIANG QIULU DRESS
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