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Method for making odor-free melt-blown cloth

A production method and technology of melt-blown cloth, applied in non-woven fabrics, filament forming treatment, spinning solution degassing, etc., can solve problems that are difficult to eliminate, and achieve the effect of ensuring no peculiar smell and overcoming peculiar smell

Inactive Publication Date: 2021-04-30
广西德福莱医疗器械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the peculiar smell carried by the production raw materials and the peculiar smell generated during the reaction process, the product melt-blown cloth has a peculiar smell, and the melt-blown cloth has rich fiber holes that have a strong adsorption effect on the peculiar smell, so once the peculiar smell is generated and stays Adsorption on the melt blown cloth is difficult to eliminate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Include the following steps:

[0029] A. Weigh each raw material (by weight): 100 parts of polypropylene resin, 1 part of antioxidant, 1 part of stabilizer, 5 parts of dispersant;

[0030] B. Put each raw material into a blender and stir and mix to obtain a mixed masterbatch;

[0031] C. The mixed masterbatch is heated and melted by the variable-pitch twin-screw during the material conveying process to obtain the molten material; during the heating and melting process, the temperature of the die head is 160°C to 220°C;

[0032] D. The molten material is filtered through a filter to obtain a filtered material; the pore size of the filter is 5 μm, and the temperature of the molten material is maintained at 220° C. during the filtration process;

[0033] E. The filtered material is homogenized by a homogenizer to obtain a homogenized material;

[0034] F. The homogenized material is spun through a nozzle, drawn by hot air, cooled by cold air and blown off to obtain super...

Embodiment 2

[0045] Include the following steps:

[0046] A. Weigh each raw material (by weight): 100 parts of polypropylene resin, 1 part of antioxidant, 1 part of stabilizer, 5 parts of dispersant;

[0047] B. Put each raw material into a blender and stir and mix to obtain a mixed masterbatch;

[0048] C. The mixed masterbatch is heated and melted by the variable-pitch twin-screw during the material conveying process to obtain the molten material; during the heating and melting process, the temperature of the die head is 160°C to 220°C;

[0049] D. The molten material is filtered through a filter to obtain a filtered material; the pore size of the filter is 5 μm, and the temperature of the molten material is maintained at 220° C. during the filtration process;

[0050] E. The filtered material is homogenized by a homogenizer to obtain a homogenized material;

[0051] F. The homogenized material is spun through a nozzle, drawn by hot air, cooled by cold air and blown off to obtain super...

Embodiment 3

[0059] Include the following steps:

[0060] A. Weigh each raw material (by weight): 100 parts of polypropylene resin, 1 part of antioxidant, 1 part of stabilizer, 5 parts of dispersant;

[0061] B. Put each raw material into a blender and stir and mix to obtain a mixed masterbatch;

[0062] C. The mixed masterbatch is heated and melted by the variable-pitch twin-screw during the material conveying process to obtain the molten material; during the heating and melting process, the temperature of the die head is 160°C to 220°C;

[0063] D. The molten material is filtered through a filter to obtain a filtered material; the pore size of the filter is 5 μm, and the temperature of the molten material is maintained at 220° C. during the filtration process;

[0064] E. The filtered material is homogenized by a homogenizer to obtain a homogenized material;

[0065] F. The homogenized material is spun through a nozzle, drawn by hot air, cooled by cold air and blown off to obtain super...

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Abstract

The invention discloses a method for making odor-free melt-blown cloth. The method comprises the following steps of weighing raw materials, putting the raw materials into a stirrer for stirring and mixing, performing heating and melting in a material conveying process through a variable-pitch twin screw, performing filtering through a filter, performing homogenizing through a homogenizer, performing spinning through a nozzle, performing drafting by hot air, performing cooling and blowing off by cold air, performing collecting on a web condensing roller, performing carding to form a web, then performing electret treatment by an electret, and performing edge cutting and winding on a winding roller to form a non-woven fabric wound according to specifications, wherein production raw materials of a filter tip of the filter include nano activated carbon. According to the method, the production raw materials of the filter tip of the filter are adjusted to contain the activated carbon with the adsorption effect, and when the melt-blown cloth production raw materials are molten and pass through the filter tip of the filter, the contained activated carbon adsorbs and eliminates the odor carried by the melt-blown cloth production raw materials, so that the problem that produced melt-blown cloth has the odor in the prior art is solved.

Description

technical field [0001] The invention relates to the technical field of materials for mask production, in particular to a production process of melt-blown cloth. Background technique [0002] Meltblown cloth is the core material for mask production, with polypropylene as the main raw material, and the fiber diameter can reach 1-5 microns. Because of its large voids, fluffy structure, and good wrinkle resistance, the ultrafine fibers with a unique capillary structure increase the number and surface area of ​​fibers per unit area, so that the melt blown cloth has good filterability, shielding, heat insulation and oil absorption. It is widely used in air and liquid filter materials, isolation materials, absorbent materials, medical and industrial mask materials, thermal insulation materials, oil-absorbing materials and wiping cloths. [0003] However, due to the peculiar smell carried by the production raw materials and the peculiar smell generated during the reaction process, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/54D04H1/56D01D1/10
CPCD04H1/54D04H1/56D01D1/106
Inventor 蓝国勇阮健
Owner 广西德福莱医疗器械有限公司
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