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A two-in-one material for lamination of environmentally friendly hot-melt adhesive film for masks
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A hot-melt adhesive film, an environmentally friendly technology, applied in the field of mask materials, can solve the problems of the influence of filtration effect and the influence of filter material of mask filter, etc.
Active Publication Date: 2021-06-04
SHANDONG LURUN E JIAO PHARMA
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Problems solved by technology
[0004] In view of the above-mentioned related technologies, the existing mask filter materials usually achieve the filtering effect by electrostatic adsorption of tiny particles, but when the filter material touches water, it is easy to lose the effect of electrostatic adsorption of tiny particles, resulting in the filtration of the mask filter material. The effect is easily affected. Therefore, the inventor believes that there is a defect that the filtering effect of the traditional mask filter material is easily affected by washing.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Embodiment 1
[0053] refer to figure 1 , a kind of preparation method of the two-in-one material that is used for the environment-friendly hot-melt adhesive film bonding of mouth mask, comprises the following steps:
[0054] Step (1), the hot melt adhesive is placed between the upper protective layer and the ePTFE nanofiber membrane to form a composite layer, and the composite layer is placed on the cloth guide roller of the hot-press composite machine, and then the temperature of the hot-press composite machine Set at 180°C, compound pressure at 1kgf / m 2 .
[0055] Step (2), put the front end of the composite layer into the coating roller of the hot-press laminating machine, start the hot-press laminating machine, perform hot-melt lamination, and control the lamination time to 35s, and finally wind up the laminating composite layer Bundled, that is, a two-in-one material for the bonding of environmentally friendly hot-melt adhesive films for masks.
[0056] In this example, the upper pr...
Embodiment 2
[0058] The difference with embodiment 1 is:
[0059] In step (1), set the temperature of the hot-press laminating machine to 200°C, and set the laminating pressure to 3.5kgf / m 2 .
[0060] In step (2), the compounding time is controlled to be 8s.
[0061] In this embodiment, the hot-melt adhesive adopts an environmentally friendly hot-melt adhesive omentum of EVA type from Shanghai Hengning New Material Co., Ltd. with a melting point of 155°C.
Embodiment 3
[0063] The difference with embodiment 1 is:
[0064] In step (1), set the temperature of the hot-press laminating machine to 180°C, and set the laminating pressure to 1.5kgf / m 2 .
[0065] In step (2), the composite time is controlled to be 30s.
[0066] In this embodiment, the hot-melt adhesive is an environmentally friendly hot-melt adhesive omentum produced by Shanghai Hengning New Material Co., Ltd., whose model is EVA with a melting point of 110°C.
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Abstract
This application relates to a two-in-one material for the bonding of an environmentally friendly hot-melt adhesive film for masks, which includes an upper protective layer and a lower filter layer bonded by hot-melt adhesive. The upper protective layer is PP non-woven fabric or ES Non-woven fabric or ES hot air cotton or PP melt-blown fabric or PP oil-absorbing cotton or spunlace non-woven fabric, the lower filter layer is ePTFE nanofiber membrane. It also relates to a preparation method of a two-in-one material for bonding an environmentally friendly hot-melt adhesive film for masks, which includes the following steps: Step (1), placing the hot-melt adhesive on the upper protective layer and the lower filter layer In between, a composite layer is formed; in step (2), the composite layer is placed at a temperature of 180°C-200°C for hot-melt compounding, and a two-in-one material for bonding an environmentally friendly hot-melt adhesive film for masks is obtained. The present application has the effect of improving the washing performance of the mask filter material.
Description
technical field [0001] This application relates to the field of mask materials, in particular to a two-in-one material for laminating an environmentally friendly hot-melt adhesive film for masks. Background technique [0002] At present, masks are a kind of hygiene products, which are generally worn on the nose and mouth to filter the air entering the mouth and nose, so as to block harmful gases, odors, droplets, viruses and other substances, and are made of gauze or paper. [0003] Traditional mask filter materials are generally made of non-woven fabrics, nano-non-woven fabrics, spunlace fabrics, and non-woven fabrics that are combined into a roll by a mask punching machine, and finally a base cloth is added when the mask filter material is sliced, that is, Craftable masks. [0004] In view of the above-mentioned related technologies, the existing mask filter materials usually achieve the filtering effect by electrostatic adsorption of tiny particles, but when the filter m...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information
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