A kind of wet tissue used for escaping in case of fire and its preparation method

Abstract

The invention relates to a wet tissue for escape during fire and a preparation method thereof. The wet tissue is characterized by comprising a non-woven fabric carrier soaked with refreshing Chinese herbal medicine solution, and a hydrophilic functional group-containing polymer thin film which is 0.1 micron-1mm thick on at least one face. The Chinese herbal medicine solution is prepared by mixing 0.1-5wt% of mint, S0.1-5wt% of syzygium aromaticum and the balance of water in percentage by weight. The polymer film layer can filter harmful soot, and active carbon or titanium dioxide which can absorb harmful gases can be inserted into the non-woven fabric layer to further absorb harmful gases, so that damage to human body by harmful soot is reduced. The wet tissue provided by the invention has the characteristics of simple structure, small size, convenience in use, simple preparation process and low cost, can effectively refresh brain and prevent soot during fire escape, and meanwhile can be sufficiently prepared in a firefighting access to effectively ensure the escape and safety of people in early or later stage of fire.

Description

technical field

[0001] The invention relates to a self-rescue article used for escaping from a fire, in particular to a wet tissue used for self-rescue and mutual rescue in the early or late stage of a fire and a preparation method thereof. Background technique

[0002] In recent years, with the rapid development of urban buildings, large fires and extraordinarily large fires are more likely to increase, seriously threatening the safety of people's lives and property. Smoke is an inevitable product of fire. When a fire breaks out in a building, the toxic smoke produced by building materials paralyzes the central nervous system, causing people to lose their ability to escape. It is the main factor that causes people to be injured or killed.

[0003] Most of the anti-smoke devices used for self-rescue when an existing fire broke out are face shields. Patent CN2360110Y discloses a support mask for fire escape, which is composed of a breathing mask, an automatic oxygen supplier...

Examples

Embodiment 1

[0023] After the non-woven fabric is sliced, at 95°C, as for the polyvinyl alcohol aqueous solution with a concentration of 30wt%, the weight average molecular weight of the polyvinyl alcohol used is 15000, and the degree of hydrolysis is 95%. After immersing for 1 hour, it is fully dried with air to form a coated Polyvinyl alcohol non-woven fabric with a thickness of 12.5um. At 20°C, put the non-woven fabric in an aqueous solution composed of 1 wt% mint and clove for 5 minutes, take it out and dry it until there is no water drop, and set it aside.

Embodiment 2

[0025] Pre-configure a polyvinyl alcohol aqueous solution with a concentration of 50%, use a spin coating machine to coat the non-woven fabric, and obtain a non-woven fabric coated with polyvinyl alcohol with a thickness of 10.3um after drying at 20°C. After the non-woven fabric is placed in an aqueous solution composed of 1 wt% mint and clove for 5 minutes, it is taken out and dried until there is no water drop, and is set aside.

Embodiment 3

[0027] Paste a polyvinyl alcohol film with a thickness of 10.0um on both sides of the non-woven fabric, place the non-woven fabric in an aqueous solution of 1 wt% mint and clove for 5 minutes, take it out and dry it until there is no water drop, and set it aside.

technical field

[0001] The invention relates to a self-rescue article used for escaping from a fire, in particular to a wet tissue used for self-rescue and mutual rescue in the early or late stage of a fire and a preparation method thereof. Background technique

[0002] In recent years, with the rapid development of urban buildings, large fires and extraordinarily large fires are more likely to increase, seriously threatening the safety of people's lives and property. Smoke is an inevitable product of fire. When a fire breaks out in a building, the toxic smoke produced by building materials paralyzes the central nervous system, causing people to lose their ability to escape. It is the main factor that causes people to be injured or killed.

[0003] Most of the anti-smoke devices used for self-rescue when an existing fire broke out are face shields. Patent CN2360110Y discloses a support mask for fire escape, which is composed of a breathing mask, an automatic oxygen supplier...

Examples

Embodiment 1

[0023] After the non-woven fabric is sliced, at 95°C, as for the polyvinyl alcohol aqueous solution with a concentration of 30wt%, the weight average molecular weight of the polyvinyl alcohol used is 15000, and the degree of hydrolysis is 95%. After immersing for 1 hour, it is fully dried with air to form a coated Polyvinyl alcohol non-woven fabric with a thickness of 12.5um. At 20°C, put the non-woven fabric in an aqueous solution composed of 1 wt% mint and clove for 5 minutes, take it out and dry it until there is no water drop, and set it aside.

Embodiment 2

[0025] Pre-configure a polyvinyl alcohol aqueous solution with a concentration of 50%, use a spin coating machine to coat the non-woven fabric, and obtain a non-woven fabric coated with polyvinyl alcohol with a thickness of 10.3um after drying at 20°C. After the non-woven fabric is placed in an aqueous solution composed of 1 wt% mint and clove for 5 minutes, it is taken out and dried until there is no water drop, and is set aside.

Embodiment 3

[0027] Paste a polyvinyl alcohol film with a thickness of 10.0um on both sides of the non-woven fabric, place the non-woven fabric in an aqueous solution of 1 wt% mint and clove for 5 minutes, take it out and dry it until there is no water drop, and set it aside.

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