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Filter for mask and mask formed using the same

A mask and filter material technology, which is applied in the direction of breathing filter, application, filtration and separation, etc., can solve the problems that the antibacterial effect of inorganic antibacterial agents cannot be fully exerted, it is difficult to fully exert the antibacterial effect, and the specific surface area of ​​non-woven fabrics is small. , to achieve the effects of excellent ventilation, excellent wearing feeling and excellent antibacterial effect

Active Publication Date: 2009-09-16
UNI CHARM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the above-mentioned non-woven fabrics made of polyolefin fibers containing inorganic antibacterial agents described in Patent Documents 4 and 5, most of the inorganic antibacterial agents are in a state coated with polyolefin and exist inside the fibers. There is little exposure on the surface, so the antibacterial effect of inorganic antibacterial agents cannot be fully exerted
But, by the existing non-woven fabric that the polyolefin fiber that contains inorganic antibacterial agent is made, because the fiber diameter of the polyolefin fiber that forms non-woven fabric is quite large, the specific surface area of ​​the non-woven fabric made by it is little, namely Using these non-woven fabrics as filter materials for masks, it is difficult to fully exert the antibacterial effect on pathogens such as viruses and bacteria

Method used

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  • Filter for mask and mask formed using the same
  • Filter for mask and mask formed using the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0206] (1) Manufacture of the antibacterial polyolefin fiber sheet (I) of electretization:

[0207] (i) In 80 parts by weight of polypropylene (A) (MFR=300g / 10 minutes), mix silver-based inorganic antibacterial agent particles (manufactured by Toagosei Co., Ltd. , ノバロン AG300, average particle size 1 μm, approximately cube-shaped) 20 parts by weight, formulated as a masterbatch containing silver-based inorganic antibacterial agent particles.

[0208] (ii) Mix the masterbatch prepared in (i) above with polypropylene (B) (MFR=700g / 10min) at a weight ratio of masterbatch:polypropylene=1:9, and use general melt flow Equipment, using spinning temperature 280°C, air temperature 290°C, air pressure 1.2kg / cm 2 , single-hole ejection amount 0.4g / hole · minute, catching distance 30cm, 2850 spinning hole numbers (one row configuration) in the nozzle, carry out melt flow spinning, make antibacterial polyolefin fiber sheet ( I).

[0209] (iii) The antibacterial polyolefin fiber sheet (I)...

Embodiment 2

[0217] (1) Manufacture of electretized antibacterial polyolefin fiber composite sheet:

[0218] (i) Polypropylene (MFR=700g / 10 minutes) is used in general melt flow equipment, with a spinning temperature of 250°C, an air temperature of 260°C, and an air pressure of 0.8kg / cm 2 , single-hole ejection amount 0.5g / hole·minute, collection distance 35cm, number of spinning holes in the nozzle 2850 (arranged in 1 row), melt flow spinning is carried out, and low-density polypropylene melt Bulk-flow nonwoven fiber sheet (1) [corresponds to polyolefin fiber sheet (III)]. The weight per unit area of ​​the melt flow nonwoven fabric (1) is 10 g / m 2 The air permeability measured by the Fraser method is 250cc / cm 2 / sec. In addition, the average fiber diameter of the polypropylene fiber which comprises a melt-flow nonwoven fabric (1) was 4.8 micrometers.

[0219] (ii) (a) In 80 parts by weight of polypropylene (A) (MFR=300g / 10 minutes), mix the silver-based inorganic antibacterial agent p...

Embodiment 3

[0229] (1) Manufacture of electretized antibacterial polyolefin fiber composite sheet:

[0230] (i) Prepare a spun-bonded nonwoven fabric (weight per unit area = 20 g / m) made of polypropylene fiber 2 , Ventilation = 350cc / cm 2 / sec) [equivalent to polyolefin fiber sheet (III)].

[0231] (ii) In 80 parts by weight of polypropylene (A) (MFR=100g / 10 minutes), silver-based inorganic antimicrobial agent fine particles loaded with silver ions on the zeolite (manufactured by Shinanen Zeometsu, "Zeomic", average particle diameter 2.5 μm, approximately spherical) 20 parts by weight, prepared as a master mixture containing silver inorganic antibacterial agent particles.

[0232] (iii) Mix the masterbatch prepared in (ii) above with polypropylene (B) (MFR=600g / 10 minutes) at a weight ratio of masterbatch:polypropylene=1:9, and use the same mixture as in Example 1 The same melt flow equipment used, using spinning temperature 210 ℃, air temperature 220 ℃, air pressure 0.9kg / cm 2 , unde...

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Abstract

The present invention provides a mask filter exhibiting a high antimicrobial / antiviral activity, a high dust filtration ability, a high ventilation characteristic, a high failure-strength and a high workability into a mask and the mask produced using such mask filter. An antimicrobial polyolefin fiber sheet is provided wherein the polyolefin fiber sheet has one or more spots in which 1 / 100 or more by volume of individual inorganic antimicrobial agent particles are exposed on surfaces of polyolefin fibers per fiber sheet area of 1.0*10 <-2> mm 2 or has one or more spots in which the inorganic antimicrobial agent particles are exposed on the surfaces of polyolefin fibers each occupying an area of 0.01 [mu]m 2 or larger per fiber sheet area of 1.0*10 <-2> mm 2 . Such polyolefin fiber sheet is arranged as the core layer and this core layer is sandwiched between upper and lower layers of dry nonwoven fabric to form the mask filter in the form of a laminated sheet. Such mask filter is used to form the mask.

Description

technical field [0001] The invention relates to a filter material for a mask and a mask formed by using the filter material. In more detail, the present invention relates to a filter material for a mask comprising a laminated sheet and a mask formed using the filter material, the laminated sheet has an antibacterial property formed by polyolefin fibers containing inorganic antibacterial agent particles inside. The layer composed of the fiber sheet has layers composed of dry nonwoven fabrics on both surfaces. The filter material for mouth mask of the present invention, in the polyolefin fiber that forms antibacterial polyolefin fiber sheet inside the filter material laminated sheet that forms mouth mask, the inorganic antimicrobial agent particle that has mixed, owing to be exposed in a large amount from fiber surface, so High antibacterial effect and antiviral effect can be brought into play stably, and the dust filtration performance and air permeability are excellent, and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62B18/02B01D39/14B01D39/16B32B5/26D04H1/40D04H1/413
CPCD04H13/007B01D2239/0442D04H1/42B32B5/26A62B23/025B01D39/1623A62B18/025D04H13/002B32B27/32B01D2239/065B32B5/022B32B2262/0253B32B2264/10B32B2307/54B32B2307/7145B32B2307/718B32B2307/7242B32B2571/00
Inventor 岩本拓也竹内直人石神信寺冈裕美
Owner UNI CHARM CORP
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