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PE/PET composite ultra-short curl-free fiber precursor production method and device

A technology for crimping fibers and production methods, applied in fiber processing, fiber chemical characteristics, conjugated synthetic polymer rayon, etc., can solve the problem of insufficient PE/PET fiber talent aggregation, fiber quality can not meet high-end market demand, PE /PET fiber is less and other problems, to achieve the effect of reducing production cost, reducing the proportion of mixing, and increasing the bonding strength

Pending Publication Date: 2021-04-23
扬州石化有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main reason is that the concentration of talents in the domestic PE / PET fiber industry is not enough, and few people do basic research on PE / PET fiber
At the same time, the equipment level of domestic production lines is generally not high, and the fiber quality cannot meet the needs of the high-end market

Method used

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  • PE/PET composite ultra-short curl-free fiber precursor production method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] PE / PET composite ultra-short non-crimp fiber precursor production method, comprises the steps:

[0031] Step S1, raw material preparation, the raw material is composed of two components A and B:

[0032] In terms of parts by mass, component A includes: 5% molecular weight regulator and 95% HDPE. 2,5-Dimethyl-2,5-bis(tert-butylperoxy)hexane was chosen as the molecular weight regulator.

[0033] In parts by mass, component B includes: PET 100%.

[0034] Step S2, preparing component A:

[0035] Step S2.1. Mix the molecular weight modifier and one-half (mass ratio) of HDPE in the raw material evenly with a weight loss weighing scale.

[0036] Step S2.2, the mixture obtained in step S2.1 is mixed and granulated by a twin-screw mixer at 240°C, and an antioxidant is added in a proportion of 0.5% during the granulation process for protection.

[0037] Step S2.3. Accurately measure the plastic particles generated in step 2.2 with a weight loss weighing scale, mix them with ...

Embodiment 2

[0047] Another PE / PET composite ultra-short non-crimp fiber precursor production method comprises the following steps:

[0048] Step S1, raw material preparation, the raw material is composed of two components A and B:

[0049] In terms of parts by mass, component A includes: 5-10% of molecular weight regulator, 90-95% of HDPE. 3,6,9-triethyl-3,6,9-trimethyl-1,4,7 triperoxynonane was selected as the molecular weight regulator.

[0050] In parts by mass, component B includes: PET 100%.

[0051] Step S2, preparing component A:

[0052] Step S2.1. Mix the molecular weight modifier and one-sixth of the HDPE in the raw material evenly with a weight loss weighing scale.

[0053] Other steps are the same as in Example 1.

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Abstract

The invention discloses a PE / PET composite ultra-short non-crimp fiber precursor production method and device. In the production method, modified masterbatch is added into raw materials, the melting point of fibers can be reduced, and the bonding strength of the fibers in a using process is improved; meanwhile, due to the non-crimp property of the fibers, the number of bonding points of the fibers in unit area can be increased, the doping proportion of the fibers is remarkably reduced, and the downstream production cost is reduced. The production device comprises a workbench and a spinning box, the spinning box is a melt spinning box, feed ports are formed in two sides of the upper portion of the spinning box correspondingly, and the two feed ports of the spinning box are in butt joint with a discharge port of a first single-screw extruder and a discharge port of a second single-screw extruder correspondingly; a first weightlessness measuring scale, a double-screw mixing mill and a second weightlessness measuring scale are sequentially arranged above the first single-screw extruder from top to bottom; and a first PET slicing machine, a first drying dehydrator, a second PET slicing machine and a second drying dehydrator are sequentially arranged above the second single-screw extruder from top to bottom.

Description

technical field [0001] The invention relates to the technical field of non-woven composite fibers, in particular to a production method and device for PE / PET composite ultra-short non-crimp fiber precursors. Background technique [0002] With the development of the economy, people's quality of life is improving year by year. At the same time, consumer demand is also changing. The demand for multi-functional and high-quality products such as sanitary napkins and paper diapers is increasing year by year, such as dryness, air permeability, softness and non-irritation, etc., which also raises higher requirements for the performance and quality of product raw materials. demanding. The functional and adaptable PE / PET fiber is an ideal material for manufacturing high-end sanitary napkins and diapers, which is in line with the development trend of high-end consumption and has a good development prospect. [0003] Judging from the current market situation, 80% of domestic PE / PET fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/34D01F8/06D01F1/10
CPCD01D5/34D01F1/10D01F8/06
Inventor 姚日远袁卫曹荣翟根林刘旻
Owner 扬州石化有限责任公司
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