Method for preparing hollow hot melt nonwoven cloth force fit plate of polypropylene

A non-woven and polypropylene technology, which is applied in the field of preparation of polypropylene hollow hot-melt non-woven laminates, can solve the problems of poor product quality stability, complex preparation methods, and low degree of automation, and achieve stable product quality and reduce The effect of high production cost and high degree of mechanization

Inactive Publication Date: 2009-01-14
无锡嘉旺精密包装材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This preparation method is comparatively complicated, and degree of automation is low, and efficiency is low, and product quality stability is relatively poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: The preparation method of a kind of polypropylene hollow hot-melt non-woven laminated board of the present invention adopts the following process steps:

[0021] a. Feeding: feed PP polypropylene granular raw materials into the hopper;

[0022] b. Melt extrusion: The material entering the hopper enters the melting section of the screw extruder with a screw diameter of 125mm through gravity, and depends on the transmission force of the screw rotation, the material enters the metering section and the extrusion section of the screw extruder in turn, And the temperature of the melting section, metering section and extrusion section of the screw extruder is controlled at 180°C, and the speed of the screw extruder is controlled at 30r / min, and the material delivery pressure is set at 10MPa;

[0023] c. Mold extrusion: the molten material is extruded by a screw extruder and formed by a mold;

[0024] d. Cooling and sizing forming: the basically formed material f...

Embodiment 2

[0031] Embodiment 2: The preparation method of a kind of polypropylene hollow hot-melt non-woven laminated board of the present invention adopts the following process steps:

[0032] a. Feeding: feed the raw material of polypropylene granules into the hopper;

[0033] b. Melt extrusion: The material entering the hopper enters the melting section of the screw extruder with a screw diameter of 125mm through gravity, and depends on the transmission force of the screw rotation, the material enters the metering section and the extrusion section of the screw extruder in turn, And the temperature of the melting section, metering section and extrusion section of the screw is controlled at 210°C, and the speed of the screw extruder is controlled at 60r / min, and the material delivery pressure is set at 20MPa;

[0034] c. Mold extrusion: the molten material is extruded by a screw extruder and formed by a mold;

[0035] d. Cooling and sizing molding: The basically formed material flowing...

Embodiment 3

[0042] Embodiment 3: The preparation method of a polypropylene hollow hot-melt non-woven laminated board of the present invention adopts the following process steps:

[0043] a. Feeding: feed the raw material of polypropylene granules into the hopper;

[0044] b. Melt extrusion: The material entering the hopper enters the melting section of the screw extruder with a screw diameter of 125mm through gravity, and depends on the transmission force of the screw rotation, the material enters the metering section and the extrusion section of the screw extruder in turn, And the temperature of the melting section, metering section and extrusion section of the screw extruder is controlled at 190°C, and the speed of the screw extruder is controlled at 40r / min, and the material delivery pressure is set at 15MPa;

[0045] c. Mold extrusion: the molten material is extruded by a screw and molded by a mold;

[0046] d. Cooling and sizing forming: the basically formed material flowing out of th...

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Abstract

The invention relates to a method for preparing polypropylene hollow hot melt non-woven fabric laminates. In the method, polypropylene granule is fed to a hopper; the polypropylene granule is melted and extruded through a screw extruder, extruded through a die, cooled, formed and moulded, tempered and heated up, thermally compressed; blown and cooled; subsequently, scrapped parts are cut off; the size is finalized through cutting, and a finished product is warehoused. The preparation method is mechanized; the product quality is high; the preparation method significantly improves the production steps of polypropylene hollow hot melt non-woven fabric laminates and the production efficiency of laminates, which reduces the production cost of polypropylene hollow hot melt non-woven fabric laminates.

Description

technical field [0001] The invention relates to a method for preparing a polypropylene hollow hot-melt non-woven fabric pressing board. Background technique [0002] The polypropylene (PP) hollow panel includes an upper panel, a lower panel and a middle vertical rib. The vertical rib is an integration of the upper panel and the lower panel, which includes several ribs arranged according to the grid pattern and perpendicular to the upper and lower panels. , The ribs are connected as a whole by hot-melt extrusion. The grid-shaped ribs are perpendicular to the upper and lower panels, so that the bearing capacity is significantly improved, and it is not easy to be deformed and damaged during use. [0003] The polypropylene hollow non-woven fabric board is widely used by attaching non-woven fabric to the surface of the polypropylene hollow board. It has the advantages of softness, comfort, warmth, good elasticity, and high-efficiency anti-information leakage glass. It can meet ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C69/00B29C47/00B29C47/88B29C71/02B29C70/82B29C35/16B29C47/38B29C47/92B29K23/00B29L7/00B29L9/00B29C48/05B29C48/08B29C48/395B29C48/92
CPCB29C47/004B29C47/0066B29C47/0021B29C47/0007B29C48/92B29C48/05B29C2948/92704B29C48/023B29C48/08B29C48/0011B29C48/0022B29C48/9185B29C2948/92895
Inventor 明达祥
Owner 无锡嘉旺精密包装材料有限公司
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