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Environment-friendly hot melt adhesive attached three-in-one material for mask and preparation method thereof

An environmentally friendly, hot-melt adhesive technology, applied in separation methods, chemical instruments and methods, applications, etc., can solve the problems of short mask effective time, inability to block fine particles, mask effect failure, etc., and achieve long protection time , good physical properties, good fluidity

Inactive Publication Date: 2020-08-28
广州凯颖商贸有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The static charge on the melt-blown cotton will disappear with time, and the humidity will also accelerate the speed of the charge disappearing, making the effective time of the mask shorter, and after cleaning, the static charge will completely disappear, and it will no longer have the ability to block fine particles , can only block large particles, and has no blocking effect on fine particles such as viruses, resulting in the effect of the mask being almost invalid. Therefore, there is still room for improvement

Method used

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  • Environment-friendly hot melt adhesive attached three-in-one material for mask and preparation method thereof
  • Environment-friendly hot melt adhesive attached three-in-one material for mask and preparation method thereof
  • Environment-friendly hot melt adhesive attached three-in-one material for mask and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A three-in-one material for environmental protection hot melt adhesive bonding of masks, including an upper protective layer, a middle filter layer and a lower protective layer parallel to each other, between the upper protective layer and the middle filter layer and between the middle filter layer and the lower filter layer The protective layers are fixedly connected by hot-melt adhesive films.

[0040] The upper protective layer is made of PP non-woven fabric.

[0041] The middle filter layer is made of ePTFE nanofiber membrane made of expanded polytetrafluoroethylene.

[0042] The lower protective layer is made of PP non-woven fabric.

[0043] The hot-melt adhesive film is a polyurethane hot-melt adhesive film with a melting point of 120°C.

[0044] refer to figure 1 , the preparation method of the three-in-one material used for the environmentally friendly hot melt adhesive bonding of masks is as follows:

[0045]Step 1), place the upper protective layer, the mi...

Embodiment 2

[0048] A three-in-one material that is used for environmental protection type hot-melt adhesive bonding of masks, compared with Example 1, the difference is only:

[0049] The hot melt adhesive film is a polyurethane hot melt adhesive film with a melting point of 135°C.

[0050] In step 2), the pressing temperature is 190°C, the pressing time is 20s, and the pressing pressure is 2.5kgf / m 2 .

Embodiment 3

[0052] A three-in-one material that is used for environmental protection type hot-melt adhesive bonding of masks, compared with Example 1, the difference is only:

[0053] The hot melt adhesive film is a polyurethane hot melt adhesive film with a melting point of 150°C.

[0054] In step 2), the pressing temperature is 200°C, the pressing time is 10s, and the pressing pressure is 3kgf / m 2 .

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Abstract

The invention relates to the technical field of mask materials. The invention relates to a three-in-one material, in particular to an environment-friendly hot melt adhesive attached three-in-one material for a mask. The filter element comprises an upper protective layer, a middle filter layer and a lower protective layer which are parallel to one another, wherein the middle filter layer is locatedbetween the upper protective layer and the lower protective layer, the upper protective layer is fixedly connected with the middle filter layer, the middle filter layer is fixedly connected with thelower protective layer, the upper protective layer, the middle filter layer and the lower protective layer are all made of breathable materials, and the middle filter layer is a nanofiber membrane. The fabric has the advantages of being long in protection time, good in air permeability, capable of well adding bioactive substances and achieving anti-inflammatory and antibacterial functions, capableof being washed repeatedly and durable in use.

Description

technical field [0001] The invention relates to the technical field of mask materials, in particular to a three-in-one material used for bonding of masks with environmentally friendly hot melt adhesive. Background technique [0002] At present, as people's requirements for hygiene are getting higher and higher, more and more people are getting used to wearing masks when traveling, and masks have become a bestseller. [0003] The existing masks are mainly composed of non-woven fabrics, melt-blown cotton, spunlace fabrics, and non-woven fabrics. This four-layer structure mainly uses melt-blown cotton to block large particles and is produced by melt-blown cotton. The static electricity realizes the electrostatic adsorption of fine particles, and the filtration of fine particles is realized through electrostatic adsorption. [0004] There are following defects in the above-mentioned prior art scheme: [0005] The static charge on the melt-blown cotton will disappear with time,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/02B32B27/12B32B27/32B32B27/36B32B5/02B32B7/12B32B37/06B32B37/10B32B37/12A41D13/11A41D31/02A41D31/04A41D31/14A41D31/30B01D46/54B01D71/36B01D69/02
CPCA41D13/11A41D31/02A41D31/04A41D31/145A41D31/305B01D46/0028B01D46/543B01D46/546B01D69/02B01D71/36B01D2325/40B01D2325/48B32B5/02B32B5/022B32B5/08B32B5/26B32B7/12B32B37/06B32B37/10B32B37/1207B32B2037/1223B32B2262/0253B32B2262/0284B32B2262/14B32B2307/7145B32B2307/724
Inventor 李正龙
Owner 广州凯颖商贸有限公司
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