Composite monofilament applied to material filtering base cloth and preparing method thereof

A technology of composite monofilament and base fabric, which is applied in the manufacture of rayon, complete sets of equipment for producing rayon, conjugated synthetic polymer rayon, etc., can solve the problem of increasing the porosity of the composite monofilament and the high cost of the composite monofilament. , low filtration efficiency and other problems, to achieve the effect of good grip, high porosity, and improved filtration efficiency

Active Publication Date: 2015-10-28
WUXI JINTONG CHEM FIBER
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned problems, the present invention provides a composite monofilament applied to filter material base cloth and its preparation method, to overcome the low porosity of the composite monofilament in the prior art that makes it used in filter base cloth The problem of low filtration efficiency also overcomes the problem of high cost of composite monofilament in the prior art, thereby not only reducing the production cost of composite monofilament, but also increasing the porosity of composite monofilament, thereby improving the application of this Filtration Efficiency of Composite Monofilament Filter Base Cloth

Method used

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  • Composite monofilament applied to material filtering base cloth and preparing method thereof

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preparation example Construction

[0033] figure 1 It is the process flow chart of the preparation method of composite monofilament applied to filter material base cloth provided by the present invention; as shown in the figure, the preparation method of composite monofilament applied to filter material base cloth provided by the present invention includes:

[0034] (1) The PET chips mixed with nano-calcium carbonate are dried, screw melted, spinning, stretched and shaped, and ultrasonically cleaned into a core layer monofilament;

[0035] (2) PE chips mixed with LPET are dried and screw melted to form a skin layer;

[0036] (3) The core layer monofilament and skin layer produced in step (1) and step (2) are composited and spun, and then cooled in a water bath, and finally wound and formed into composite monofilament for filter base fabric .

[0037] Among them, in step (1), 8%-15% of nano-calcium carbonate is mixed in PET; during drying treatment, pre-crystallization: 45-80°C (1 to 4 hours), heating: 81-125°C (1~ 6 ...

Embodiment 1

[0048] 1. Preparation of PET core layer:

[0049] The preparation steps of the core layer include: drying the PET chips mixed with nano calcium carbonate, and then performing screw melting, spinning, stretching and setting, and ultrasonic cleaning; wherein the addition amount of nano calcium carbonate is 8%; the core layer is single The diameter of the wire is 0.05 mm. The process parameters in the preparation step are specifically: slice drying: pre-crystallization: 45-80°C (1 hour); temperature rise: 81-125°C (1 hour); heat preservation: 125°C (5 hours). Screw melting: extruder supply: 200g / min; pressure: 50kg / cm2; preheating zone temperature: 255°C; melting zone temperature: 280°C; metering zone temperature: 280°C. Spinning: template temperature: 280°C; spinning speed: 50m / min. Stretching setting: stretching ratio: 3; setting temperature: 120°C. Ultrasonic cleaning: ultrasonic tank length: 10 meters; power: 0.15KW.

[0050] 2. Preparation of PE skin:

[0051] The preparation ...

Embodiment 2

[0055] 1. Preparation of PET core layer:

[0056] The preparation steps of the core layer include: drying the PET chips mixed with nano calcium carbonate, and then performing screw melting, spinning, stretching and setting, and ultrasonic cleaning; wherein the addition amount of nano calcium carbonate is 15%; the core layer is single The diameter of the wire is 3.2 mm. The process parameters in the preparation step are specifically: slice drying: pre-crystallization: 45-80°C (4 hours); temperature rise: 81-125°C (5 hours); heat preservation: 125°C (8 hours). Screw melting: extruder supply: 550g / min; pressure: 150kg / cm2; preheating zone temperature: 255°C; melting zone temperature: 285°C; metering zone temperature: 285°C. Spinning: template temperature: 300°C; spinning speed: 200m / min. Stretching setting: stretching ratio: 5.5; setting temperature: 160℃. Ultrasonic cleaning: Ultrasonic water tank length: 15 meters; power: 1.5KW.

[0057] 2. Preparation of PE skin:

[0058] The pr...

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Abstract

The invention discloses a composite monofilament applied to material filtering base cloth and a preparing method thereof. According to the composite monofilament applied to the material filtering base cloth, a low-temperature fusible material PE is adopted as a skin layer material of the composite monofilament, and a material PET with a high melting point is adopted as a middle core layer material of the composite monofilament, so that on the basis of maintaining bars of the monofilament, an adhesion point between the skin layer material and the middle core layer material is small, the porosity is large, and then the filtration efficiency of the material filtering base cloth adopting the composite monofilament is improved; meanwhile, according to the preparing method for the composite monofilament applied to the material filtering base cloth, the ultrasonic cleaning process is adopted for enabling ultrasounds to remove nanometer calcium carbonate on the surfaces of fibers in an ultrasonic water tank and enabling the surface of a middle core layer monofilament body to generate holes, the joint area between the middle core layer monofilament body and a skin layer is increased, the bond strength between the middle core layer monofilament body and the skin layer is better, the bonding firmness between the middle core layer monofilament body and the skin layer is enhanced, the wear-resisting property of the composite monofilament applied to the material filtering base cloth is improved, and the service life of the composite monofilament is prolonged.

Description

Technical field [0001] The invention relates to a composite fiber material and a preparation method thereof, in particular to a composite monofilament applied to a filter material base cloth and a preparation method thereof. Background technique [0002] As a composite fiber material, composite monofilament has the advantages of smooth surface, brilliant color, waterproof, oil-proof, anti-ultraviolet, flame-retardant, cool, wear-resistant, and long service life, so it is widely used in outdoor leisure Supplies, furniture decoration, beach chairs, hammocks, curtains, car seat cushions, door mats, decoration supplies and other products. However, due to the high cost in the preparation of composite monofilaments, the single product on the production line and the insufficient product quality, it is subject to certain restrictions. [0003] In order to improve product quality, relevant technical personnel have also devised many new methods. For example, a Chinese patent with publicati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/14D01F8/06D01F1/10D01D13/00D01D5/34
Inventor 钱琦渊邵新
Owner WUXI JINTONG CHEM FIBER
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