CN214727095U - Combined fabric and fire-fighting headgear - Google Patents

Abstract

The application provides a combination surface fabric and fire control headgear. The combined fabric sequentially comprises the following components from the surface layer to the inner layer: the surface fabric, the first filter layer, the warm-keeping layer, the second filter layer and the inner fabric; the surface layer fabric and the first filter layer are compounded through point-shaped gluing; the warm-keeping layer is positioned between the first filter layer and the second filter layer; the second filter layer and the lining fabric are compounded through point-shaped gluing. The combined fabric and the fire-fighting headgear have the advantages of high flame retardance, good washing fastness, reusability and effectively improved heat preservation performance.

Description

Combined fabric and fire-fighting headgear

Technical Field

The application relates to the technical field of fire-fighting products, in particular to a combined fabric and a fire-fighting headgear.

Background

The fire fighter's protective headgear is a special protective equipment for the head, face and neck when protecting the fire fighter from entering the fire scene, and needs to have excellent flame retardant, thermal insulation and protection performances.

The aramid fiber is poor in high-temperature resistance, and when the temperature of the flame is over 300 ℃, the shrinkage of the fabric is large, and the optimal flashover protection performance cannot be provided, so that the surface fabric with better thermal stability needs to be designed to optimally resist the flame.

In addition, the fire fighter's environment scene of putting out a fire and rescuing always accompanies danger factors such as smoke toxicity, and smoke toxicity can seriously influence the fire fighter's occupational health, therefore it has practical significance to need to design a filtration headgear that can effectively obstruct smoke and dust granule, and the CN202020170464.8 patent has designed a filtration headgear, and what adopted is that submicron order electrostatic spinning gathers the layer, but its washing fastness is relatively poor, and reusability is relatively poor. In addition, fire rescue under extremely cold conditions also needs the design of a more warm-keeping function, so that firefighters are better cared.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcomings of the prior art, it is an object of the present application to provide a combined fabric and fire-fighting headgear to improve the flame retardant performance and warm-keeping function thereof.

To achieve the above and other related objects, in a first aspect of the present application, there is provided a composite fabric comprising, in order from a surface layer to an inner layer: the surface fabric, the first filter layer, the warm-keeping layer, the second filter layer and the inner fabric; the surface layer fabric and the first filter layer are compounded through point-shaped gluing; the warm-keeping layer is positioned between the first filter layer and the second filter layer; the second filter layer and the lining fabric are compounded through point-shaped gluing.

In certain embodiments of the first aspect of the present application, the skin fabric has a grammage of 120-; the shrinkage rate of the surface layer fabric at the high temperature of 450 ℃ is less than 1%.

In certain embodiments of the first aspect of the present application, the top fabric is made by spinning at least one fiber selected from the group consisting of PBI, PI, kevlar.

In certain embodiments of the first aspect of the present application, the first and second filtration layers are made using PTFE nanopore membranes.

In certain embodiments of the first aspect of the present application, the PTFE nanopore membrane is treated by a lysis process to produce the first and second filtration layers.

In certain embodiments of the first aspect of the present application, the PTFE nanopore membrane has a filtration efficiency of 98% or greater and an air permeability of 100L/dm2.min @200Pa or greater.

In certain embodiments of the first aspect of the present application, the thermal insulation layer is a flame retardant, high temperature resistant batting layer having a grammage of 120-.

In certain embodiments of the first aspect of the present application, the inner fabric is made by spinning and weaving flame-retardant viscose fiber and any one of meta-aramid, baodelon and polyimide; the gram weight of the lining fabric is 80-150g per square meter.

In a second aspect of the present application, a fire-fighting headgear is provided, wherein the fire-fighting headgear is made of the composite fabric of any one of the above.

In certain embodiments of the second aspect of the present application, the firefighter outfit cover portion is provided with a polar fleece knit piping around its perimeter.

As mentioned above, the combined fabric and the fire-fighting headgear have the following beneficial effects:

1) in the combined fabric and the fire-fighting headgear, the surface fabric and the inner fabric are respectively compounded with the filter layer through the point-like gluing, so that the combined fabric is better in washability and can be repeatedly used, and the fluff feather can be effectively prevented from being drilled out, thereby improving the performances of the combined fabric and the fire-fighting headgear;

2) the combined fabric and the fire-fighting headgear comprise the warm-keeping layer, and the warm-keeping layer is the flame-retardant high-temperature-resistant wadding layer, so that the flame retardant property of the combined fabric and the fire-fighting headgear can be effectively improved, and the warm-keeping property of the combined fabric and the fire-fighting headgear can be effectively improved.

Drawings

FIG. 1 is a schematic view of the structure of an embodiment of the present composite fabric;

fig. 2 is a schematic structural view of an embodiment of the fire headgear of the present application.

Reference numbers in the figures:

11 surface layer fabric

12 first filter layer

13 warming layer

14 second filter layer

15 inner layer fabric

2 fire-fighting head cover

21 mask part

22 binding

Detailed Description

The following description of the embodiments of the present application is provided for illustrative purposes, and other advantages and capabilities of the present application will become apparent to those skilled in the art from the present disclosure.

In the following description, reference is made to the accompanying drawings that describe several embodiments of the application. It is to be understood that other embodiments may be utilized and that mechanical, structural, electrical, and operational changes may be made without departing from the spirit and scope of the present disclosure. The following detailed description is not to be taken in a limiting sense, and the scope of embodiments of the present application is defined only by the claims of the issued patent. Spatially relative terms, such as "upper," "lower," "left," "right," "lower," "below," "lower," "above," "upper," and the like, may be used herein to facilitate describing one element or feature's relationship to another element or feature as illustrated in the figures.

Although the terms first, second, etc. may be used herein to describe various elements in some instances, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first filter layer may be referred to as a second filter layer without departing from the scope of the various described embodiments. The first and second filter layers are both two filter layers in the described composite panels, but they are not the same filter layer unless the context clearly indicates otherwise.

Also, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes" and/or "including," when used in this specification, specify the presence of stated features, steps, operations, elements, components, items, species, and/or groups, but do not preclude the presence, or addition of one or more other features, steps, operations, elements, components, species, and/or groups thereof. The terms "or" and/or "as used herein are to be construed as inclusive or meaning any one or any combination. Thus, "A, B or C" or "A, B and/or C" means "any of the following: a; b; c; a and B; a and C; b and C; A. b and C ". An exception to this definition will occur only when a combination of elements, functions, steps or operations are inherently mutually exclusive in some way.

As mentioned above, although the existing fabric of fire-fighting articles has a certain filtering effect on smoke particles, etc., it is not washable and can not be reused; and in cold conditions, it is not possible to provide a warm keeping function for the firefighter. To this, this application provides a neotype combined fabric and fire control headgear, and its reuse nature is good, and can effectual improvement fire articles for use's cold-proof function to provide better care for the fire fighter.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of a composite fabric of the present application; as shown in the figure, the combined fabric comprises from the surface layer to the inner layer: the surface layer fabric 11, the first filter layer 12, the warm-keeping layer 13, the second filter layer 14 and the inner layer fabric 15; wherein the surface layer fabric 11 and the first filter layer 12 are compounded through point-like gluing; the warm-keeping layer 13 is positioned between the first filter layer 12 and the second filter layer 14; the second filter layer 14 and the inner layer fabric 15 are compounded through point-shaped gluing.

In this embodiment, the first filter layer and the surface layer fabric, the second filter layer and the inner layer fabric are all compounded by adopting point-like gluing, so that the washability of the combined fabric is better, and the fluff of the flocculus can be prevented from being drilled out, thereby effectively improving the performance of the combined fabric.

With continued reference to fig. 1, the surface fabric 11 is a knitted fabric, and may be specifically woven by using high-performance flame-retardant and high-temperature-resistant yarns, and in this embodiment, the surface fabric may be made by spinning at least one fiber of flame-retardant and high-temperature-resistant yarns PBI, PI, and kevlar. The gram weight of the surface fabric 11 is 120 plus 200 grams per square meter; the shrinkage rate of the surface layer fabric at the high temperature of 450 ℃ is less than 1%.

Both the first filter layer 12 and the second filter layer 14 may be made of PTFE nanopore membranes. Specifically, the PTFE nanopore membrane may be treated by a lysing process to produce the first and second filter layers 12, 14. In the embodiment, the filtering efficiency of the microporous membrane is more than or equal to 98%, and the air permeability of the microporous membrane is more than or equal to 100L/dm2.min @200 Pa.

The first filter layer 12 and the second filter layer of the present embodiment have good filtering performance and air permeability, and can be washed and sterilized for reuse, thereby further improving the performance of the combined fabric.

With continuing reference to figure 1, the thermal insulation layer is a flame-retardant high-temperature-resistant wadding layer, and the gram weight is 120-. In the embodiment, the heat-insulating layer has good high-temperature resistance, the appearance of the heat-insulating layer does not change obviously when the heat-insulating layer resists the temperature of 260 ℃ in actual practice, the afterflame time of the heat-insulating layer is less than or equal to 2s and the flame retardant time is less than or equal to 2s in a vertical combustion test.

The combined fabric of the embodiment not only further improves the flame retardant and heat insulation performance of the combined fabric through the heat insulation layer, but also effectively improves the heat insulation performance of the combined fabric, and improves more effective care for firemen under extremely cold conditions.

With continued reference to fig. 1, the inner layer 15 is a knitted fabric, such as may be woven from a high count, comfortable, flame-retardant yarn. Specifically, the flame-retardant viscose fiber can be blended and spun with any one of meta-aramid, baodelon and polyimide; the gram weight of the lining fabric 15 is 80-150g per square meter.

Referring to fig. 2, fig. 2 is a schematic structural view of an embodiment of the fire headgear of the present application; as shown, the fire-fighting headgear 2 is made of the combined fabric shown in fig. 1.

Specifically, the combined fabric comprises the following components in sequence from the surface layer to the inner layer: the surface fabric, the first filter layer, the warm-keeping layer, the second filter layer and the inner fabric; the surface layer fabric and the first filter layer are compounded through point-shaped gluing; the warm-keeping layer is positioned between the first filter layer and the second filter layer; the second filter layer and the lining fabric are compounded through point-shaped gluing. More specifically, the detailed description of the combined fabric can refer to the aforementioned fig. 1 and the related description thereof, and is not repeated herein.

The fire-fighting headgear made of the combined fabric is washable and reusable, can effectively block toxic substances such as smoke dust particles and the like, and can improve the heat preservation performance.

With continued reference to fig. 2, the fire headgear 2 includes a mask portion 21, and a border 22, which may be, in particular, a polar fleece knit, is provided around the mask portion 21 as shown in fig. 9. Through such design, can be so that nostril department laminating is inseparabler, further improve the filter effect of fire control headgear.

The combined fabric and the fire-fighting headgear have good flame-retardant and heat-insulating properties, and can effectively prevent smoke dust particles; meanwhile, the fabric has good washability and can be repeatedly used, and the heat-insulating property of the fabric is improved due to the heat-insulating layer.

The above embodiments are merely illustrative of the principles and utilities of the present application and are not intended to limit the application. Any person skilled in the art can modify or change the above-described embodiments without departing from the spirit and scope of the present application. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical concepts disclosed in the present application shall be covered by the claims of the present application.

Claims (7)

1. The combined fabric is characterized by comprising the following components in sequence from a surface layer to an inner layer: the surface fabric, the first filter layer, the warm-keeping layer, the second filter layer and the inner fabric are made of one fiber of flame-retardant and high-temperature-resistant yarns PBI, PI and kevlar through spinning; the surface layer fabric and the first filter layer are compounded through point-shaped gluing; the warm-keeping layer is positioned between the first filter layer and the second filter layer; the second filter layer and the lining fabric are compounded through point-shaped gluing.

2. The combined fabric as claimed in claim 1, wherein the surface fabric has a grammage of 120-; the shrinkage rate of the surface layer fabric at the high temperature of 450 ℃ is less than 1%.

3. The composite fabric according to claim 1, wherein the first and second filter layers are made of a PTFE nanopore membrane.

4. The combined fabric according to claim 3, wherein the PTFE nanopore membrane has a filtration efficiency of 98% or more, and an air permeability of 100L/dm2.min @200Pa or more.

5. The composite fabric as claimed in claim 1, wherein the thermal insulation layer is a flame-retardant high-temperature-resistant wadding layer, and has a grammage of 120-.

6. A fire-fighting headgear made of the composite fabric of any one of claims 1 to 5.

7. The fire-fighting headgear according to claim 6, wherein the fire-fighting headgear cover portion is provided with a fleece knit piping around the perimeter.

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