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Production method of polypropylene spunbonded hot wind consolidation geotextile

A production method, polypropylene spunbond technology, applied in geotextiles, complete sets of equipment for the production of artificial threads, non-woven fabrics, etc. Good stiffness and smooth surface

Inactive Publication Date: 2018-05-04
大连华阳百科科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Geotextiles have excellent functions of filtration, drainage, isolation, reinforcement, and protection. Currently, most commonly used geotextiles are spunbonded needle-punched nonwovens. Uniform, poor compactness, uneven surface, poor stiffness, difficult to fold, difficult to clean, etc., restricting its application range, uneven surface and mutual slippage between fibers lead to easy damage and fall off during use

Method used

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  • Production method of polypropylene spunbonded hot wind consolidation geotextile

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Concrete operation of the present invention is as follows:

[0021] (1) Raw material preparation: put the isotactic structure polypropylene polymer slices with a melt index of 35, or polymer powder, into the feeding bin;

[0022] (2) Raw material transportation, melt extrusion: polypropylene raw materials are transported to the material tank, controlled by the automatic feeding system in the material tank, and then enter the screw extruder. 30. The working temperature of each zone of the screw extruder is 220°C, 225°C, 230°C, 235°C, 235°C, 240°C, 240°C;

[0023] (3) Filtration and spinning: the polypropylene melt is filtered through the melt filter and enters the spinning box, quantitatively extruded by the metering pump, and sprayed out in the spinneret. The pressure after the filter is 8Mpa, and the spinning temperature is 240 ℃;

[0024] (4) Side blowing cooling: the melt filaments coming out of the spinneret are cooled by side blowing, the side blowing wind speed ...

Embodiment 2

[0033] Concrete operation of the present invention is as follows:

[0034] (1) Raw material preparation: the isotactic structure polypropylene polymer slices with a melt index of 18, or polymer powder, are placed in the feeding bin;

[0035] (2) Raw material transportation, melt extrusion: polypropylene raw materials are transported to the material tank, controlled by the automatic feeding system in the material tank, and then enter the screw extruder. 30. The working temperature of each zone of the screw extruder is 220°C, 240°C, 250°C, 260°C, 265°C, 270°C, 270°C;

[0036] (3) Filtration and spinning: the polypropylene melt is filtered through the melt filter and enters the spinning box, quantitatively extruded by the metering pump, and sprayed out in the spinneret. The pressure after the filter is 12Mpa, and the spinning temperature is 270 ℃;

[0037] (4) Side blowing cooling: the melt filaments coming out of the spinneret are cooled by side blowing, the side blowing wind ...

Embodiment 3

[0046] Concrete operation of the present invention is as follows:

[0047] (1) Raw material preparation: the isotactic structure polypropylene polymer slices with a melt index of 18, or polymer powder, are placed in the feeding bin;

[0048](2) Raw material transportation, melt extrusion: polypropylene raw materials are transported to the material tank, controlled by the automatic feeding system in the material tank, and then enter the screw extruder. 30. The working temperature of each zone of the screw extruder is 220°C, 240°C, 250°C, 260°C, 265°C, 270°C, 270°C;

[0049] (3) Filtration and spinning: the polypropylene melt is filtered through the melt filter and enters the spinning box, quantitatively extruded by the metering pump, and sprayed out in the spinneret. The pressure after the filter is 12Mpa, and the spinning temperature is 270 ℃;

[0050] (4) Side blowing cooling: the melt filaments coming out of the spinneret are cooled by side blowing, the side blowing wind s...

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Abstract

Disclosed is a production method of polypropylene spunbonded hot wind consolidation geotextile. The production method comprises the following steps of 1, preparing material; 2, conveying, melting andextruding raw material; 3, filtering and spinning; 4, crow air blowing cooling; 5, air drafting; 6, carrying out electrostatic devillicate and pendulum wire; 7, lapping; 8, pre-hot-rolling, and performing hot wind consolidation; 9, trimming and rolling; 10, inspecting and packing; 11, packing. The production method of the polypropylene spunbonded hot wind consolidation geotextile overcomes some disadvantages of needle-punched nonwoven fabric. Moreover, a polypropylene raw material is used, and the geotextile has the advantages of being good in air permeability, water permeability and rigidity,foldable, smooth in surface, good in compactness, free of any chemical bonding agents, more acid and alkali resistant, corrosion resistant, mothproof, antioxidative and the like, which makes the geotextile a quite ideal geotextile material.

Description

technical field [0001] The invention provides a method for preparing a synthetic fiber nonwoven product. Background technique [0002] Geotextiles have excellent functions of filtration, drainage, isolation, reinforcement, and protection. Currently, most commonly used geotextiles are spunbonded needle-punched nonwovens. Uniform, poor compactness, uneven surface, poor stiffness, not easy to fold, difficult to clean, etc., restricting its application range, uneven surface and mutual slippage between fibers lead to easy damage and fall off during use. [0003] Geotextiles are mainly used in infrastructure construction fields, such as water conservancy, electric power, railways, highways, seaports, buildings, airports, reclamation, environmental protection, military and other projects. Using the production method of polypropylene spunbond hot air consolidation geotextile, the product has high water permeability, and can still maintain good water permeability under the pressure ...

Claims

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Application Information

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IPC IPC(8): D04H3/007D04H3/03D04H3/14D01D13/00
CPCD01D13/00D04H3/007D04H3/03D04H3/14D10B2321/022D10B2505/20
Inventor 曾世军孙艳艳吕大鹏
Owner 大连华阳百科科技有限公司
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