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Spinning micropore and processing method thereof

A technology of spinneret micropores and processing methods, which is applied in fiber processing, spinneret assemblies, and rayon manufacturing, can solve the problems of lack of necessary considerations in melt rheological resistance, and achieve low surface energy characteristics and guarantee Dimensional stability, effect of prolonged cleaning cycle

Active Publication Date: 2018-10-23
ZHUJI HUAHAI SPANDEX
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the Chinese patent CN102206879 A, ​​the negative pressure spinning condition (0.01-0.001MPa) is designed in the fiber forming process to improve the spinning speed of the fiber by reducing the air friction resistance, but the rheological resistance of the melt is Lack of necessary considerations, and rheological resistance is one of the key factors for the improvement of fiber spinning speed and quality

Method used

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  • Spinning micropore and processing method thereof
  • Spinning micropore and processing method thereof

Examples

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Effect test

Embodiment 1

[0031] A treatment method for spinneret micropores. First, in parts by weight, 10 parts of alkaline silica sol with a pH value of 10.1, a solid content of 30 wt%, and an average particle diameter of 30 nm and 10 parts of alkaline silica sol with a pH value of 9.4 and a solid content of Alkaline aluminum sol with 20wt% and an average particle size of 45nm was mixed, then 5 parts of formic acid was added as a catalyst to adjust the pH value of the system, and the pH value was maintained at 2, and then 10 parts of mixed solvent of ethanol and water were added, and the mixture of ethanol and water The volume ratio is 1.25:1, then add 30 parts of methyltrimethoxysilane, then hydrolyze at room temperature for 15 minutes, then put the system at 45°C for high-temperature condensation, keep the reaction for 30 minutes, and then add 1 part after the reaction A mixture of leveling agent BYK 310, defoamer BYK 025, and surface hardening and wear-resistant agent T801 with a mass ratio of 1:1...

Embodiment 2

[0034] A treatment method for spinneret micropores. First, in parts by weight, 20 parts of alkaline silica sol with a pH value of 10.5, a solid content of 45 wt%, and an average particle diameter of 50 nm and 20 parts of alkaline silica sol with a pH value of 9.8 and a solid content of Alkaline aluminum sol with 35wt% and an average particle size of 65nm was mixed, then 8 parts of acetic acid was added as a catalyst to adjust the pH value of the system, and the pH value was maintained at 4.5, and then 20 parts of a mixed solvent of isopropanol and water were added, and isopropyl The volume ratio of alcohol to water is 1.42:1, then add 40 parts of methyltriethoxysilane, then hydrolyze at room temperature for 20 minutes, then put the system at 80°C for high temperature condensation, the reaction is maintained for 75 minutes, and the reaction is over Then add 3 parts of the mixture additives of leveling agent BYK 310, defoamer BYK 025 and surface hardening and wear-resistant agent...

Embodiment 3

[0037] A treatment method for spinneret micropores, first in parts by weight, 15 parts of alkaline silica sol with a pH value of 10.3, a solid content of 35wt%, and an average particle diameter of 40nm and 15 parts of alkaline silica sol with a pH value of 9.6 and a solid content of Alkaline aluminum sol with 30wt% and an average particle size of 50nm is mixed, then 6 parts of hydrochloric acid is added as a catalyst to adjust the pH value of the system, and the pH value is maintained at 3, and then 15 parts of butanol and water mixed solvent are added, butanol and The volume ratio of water is 1.60:1, then add 35 parts of ethyltriethoxysilane, then hydrolyze at room temperature for 18 minutes, then put the system at 50°C for high-temperature condensation, and keep the reaction for 40 minutes. Add 2 parts of a mixture of leveling agent BYK 310, defoamer BYK 025 and surface hardening and wear-resistant agent T801 with a mass ratio of 1:1:0.25. After stirring for 8 minutes, the sy...

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Abstract

The invention relates to spinneret micro-holes and process method thereof. A spinneret plate is regarded as a fixed bed; polysiloxane treating liquid is regarded as flowing liquid. At the temperature of 70-85 DEG C, the flowing liquid is drained out from the spinneret micro-hole of the spinneret plate and solidified preliminarily at the temperature of 95-120 DEG C, then gets second solidification at the temperature of 200-230 DEG C and final solidification at the temperature of 260-280 DEG C, spinneret micro-holes of low surface energy is obtained after cooling. The spinneret micro-holes are the spinneret micro-holes of low surface energy that experience the surface treatment of polysiloxane treating liquid, the surface energy of the spinneret micro-holes are En <= 35 mega joule / square centimeter, surface roughness Ra <=0.2 micrometer, surface static contact angle WCA>=85 degree. The spinneret micro-holes are characterized by low surface energy, the smoothness of spinneret holes is improved and the friction coefficient is lowered. By applying the spinneret plate of spinneret micro-holes, cleaning period is prolonged four times longer than original period.

Description

technical field [0001] The invention belongs to the technical field of spinnerets, and relates to a spinneret microhole and a processing method thereof, in particular to a low surface energy spinneret microhole and a processing method thereof. Background technique [0002] my country is a big country of chemical fiber, and chemical fiber is an important raw material in the textile field. In terms of chemical fiber output, China's chemical fiber output reached 43.9 million tons in 2014. At present, the production of chemical fiber materials is mainly based on the melt spinning process, and the transformation and upgrading of the chemical fiber field focuses on the production of high efficiency, energy saving and fiber quality improvement as the main development direction. The improvement of melt spinning technology has a significant role in promoting the transformation and upgrading of the chemical fiber field. [0003] The problems existing in the application process of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D4/02D01D5/253D01D5/24C09D183/04C09D7/61
CPCC08K3/22C08K3/36C08K2003/2227C09D7/61C09D183/04D01D4/022D01D5/24D01D5/253
Inventor 王华平吉鹏王朝生李建武江振林陈仕艳王知言
Owner ZHUJI HUAHAI SPANDEX
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