CN114434919A - Three-layer structure firefighter uniform with self-cleaning function and production method thereof - Google Patents

Three-layer structure firefighter uniform with self-cleaning function and production method thereof Download PDF

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Publication number
CN114434919A
CN114434919A CN202210088020.3A CN202210088020A CN114434919A CN 114434919 A CN114434919 A CN 114434919A CN 202210088020 A CN202210088020 A CN 202210088020A CN 114434919 A CN114434919 A CN 114434919A
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China
Prior art keywords
fabric
polyethylene
layer fabric
flame
base cloth
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CN202210088020.3A
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Chinese (zh)
Inventor
韦玉辉
苏兆伟
袁惠芬
王宗乾
王鹏
张瑾
王志恒
唐欣
吴开明
张海燕
许仲童
佘敏楚楚
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Anhui Polytechnic University
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Anhui Polytechnic University
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Priority to CN202210088020.3A priority Critical patent/CN114434919A/en
Publication of CN114434919A publication Critical patent/CN114434919A/en
Pending legal-status Critical Current

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    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B17/00—Protective clothing affording protection against heat or harmful chemical agents or for use at high altitudes
    • A62B17/003—Fire-resistant or fire-fighters' clothes
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Abstract

The invention belongs to the technical field of fire-fighting clothes, in particular to a three-layer structure fire-fighting clothes with a self-cleaning function and a production method thereof, wherein the three-layer structure fire-fighting clothes comprise an outer layer fabric, a middle layer fabric and an inner layer fabric; the middle layer fabric is positioned between the outer layer fabric and the inner layer fabric; the outer layer fabric is mainly made of a flame-retardant fabric woven from polyimide fiber-polyethylene 95, and the outer layer of the flame-retardant fabric is coated with a fluorinated polysiloxane hydrophobic adhesive and TiO2A nanoparticle mixed solution; the middle layer fabric is mainly of a flame-retardant silica gel point composite fabric structure consisting of flame-retardant silica gel points, polyethylene spunlace base cloth and a PTFE (polytetrafluoroethylene) film; a super-hydrophobic interface is formed by water repellent finishing of the fire protection layer, dust type stains are removed from the surface by utilizing a lotus leaf effect theory, and organic stains are chemically decomposed into carbon dioxide, water and other small molecules by utilizing a photocatalysis technology, so that the self-cleaning effect of the stains on the surface of the fire-fighting clothing is realized.

Description

Three-layer structure firefighter uniform with self-cleaning function and production method thereof
Technical Field
The invention belongs to the technical field of fire-fighting clothes, and particularly relates to a three-layer-structure fire-fighting clothes with a self-cleaning function and a production method thereof.
Background
The fire-fighting clothing is one of necessary equipment for protecting the personal safety of first-line fire fighters living in rescue sites of various safety accidents such as fire, explosion, collapse, poisoning and the like. The rescue site for various safety accidents such as fire, explosion, collapse, poisoning and the like usually belongs to a high-risk operation environment with the coexistence of stains such as high temperature, high humidity, strong radiant heat, noise, toxic and harmful gas, oil stain, smoke, dust, powder and the like, so that first-line firefighters inevitably stain various stains in the operation environment in the process of executing rescue tasks. Meanwhile, when the worker executes the rescue task, a series of high-intensity manual labor such as equipment carrying, water belt dragging, ladder climbing, fire hook using, breaking and detaching, searching, worker rescue and the like is often required to be completed, so that the worker sweats a large amount, and the complexity of stain types is further aggravated.
According to the washing and caring theory, the following results are obtained: repeated washing or improper washing, maintenance, and maintenance of the fire-fighting clothing can cause significant degradation of various properties of the clothing. Meanwhile, the fire-fighting clothing has extremely dangerous and severe use environment and extremely high requirement on the protection function, and the cost of materials, processing technologies and accessories for the clothing is extremely high, so that the country spends a large amount of manpower and material resources to produce and research and develop related rescue equipment every year.
In the prior art, the firefighter uniform generally used at present in China adopts a four-layer structure, so that the firefighter uniform has the advantages of thick and heavy whole body, poor air permeability and thermal-humidity comfort which needs to be improved; meanwhile, the fabric is stiff and low in heat resistance, and the heat protection capability is to be improved; the clothing structure is unreasonable in design and inconvenient to climb; therefore, the invention provides a three-layer structure firefighter uniform with a self-cleaning function and a production method thereof.
Disclosure of Invention
In order to make up for the defects of the prior art, the problem that the existing firefighter uniform generally used in China mostly adopts a four-layer structure is solved, so that the firefighter uniform has the advantages of thick and heavy whole body, poor air permeability and thermal-humidity comfort which needs to be improved; meanwhile, the fabric is stiff and low in heat resistance, and the heat protection capability is to be improved; the invention relates to a three-layer structure firefighter uniform with a self-cleaning function and a production method thereof, and solves the problems that the garment is unreasonable in structural design and inconvenient to climb.
The technical scheme adopted by the invention for solving the technical problems is as follows: a three-layer structure firefighter uniform with a self-cleaning function comprises an outer layer fabric, a middle layer fabric and an inner layer fabric; the middle layer fabric is positioned between the outer layer fabric and the inner layer fabric;
the outer layer fabric is mainly made of a flame-retardant fabric woven from polyimide fiber-polyethylene 95, and the outer layer of the flame-retardant fabric is coated with a fluorinated polysiloxane hydrophobic adhesive and TiO2A nanoparticle mixed solution;
the middle layer fabric is mainly of a flame-retardant silica gel point composite fabric structure consisting of flame-retardant silica gel points, polyethylene spunlace base cloth and a PTFE (polytetrafluoroethylene) film;
the inner layer fabric is mainly made of spinning fabrics prepared by blending phase change microcapsules and acrylic fibers.
A production method of a three-layer structure firefighter uniform with a self-cleaning function comprises the following steps:
s1: preparing the firefighter uniform fabric: specifically, preparing an outer layer fabric, preparing a middle layer fabric and preparing an inner layer fabric;
s2: through the analysis of the movement posture, joint parts, stress points, contact forms and psychological needs of the classical actions of the firefighter rescue scene, the design key points and style requirements of the firefighter uniform are determined;
s3: according to the analysis of the step S2, cutting the fabrics of each layer prepared in the step S1 into corresponding garment pieces according to the style of the garment to be prepared;
s4: and (5) sequentially sewing the layers of the garment pieces obtained in the step S3 by using flame-retardant threads and sealant until the production and the manufacture of the fire-fighting garment are finished.
Preferably, in S1, the outer layer fabric is prepared by selecting a flame retardant fabric woven from polyimide fiber-polyethylene 95 as a base material, and mixing the hydrophobic fluoro-polysiloxane binder with TiO2And coating the nano-particle mixed solution on the surface of the base material to obtain the outer-layer fabric.
Preferably, in S1, the preparation of the intermediate layer fabric, that is, the intermediate layer fabric is prepared by using a flame-retardant silica gel dot composite fabric structure composed of flame-retardant silica gel dots, polyethylene spunlace base fabric and a PTFE film, and specifically includes the following steps:
a1: preparing polyimide fiber-polyethylene 95 spunlaced base fabric;
a2: compounding a PTFE membrane and polyethylene spunlace base cloth;
a3: and forming foaming silica gel dots.
Preferably, in A1, preparation of polyimide fiber-polyethylene 95 spunlace base fabric is that polyimide fiber-polyethylene 95's fiber raw material is opened the mixture through the opener, is combed by the carding machine again, makes the fibre along same direction orderly arrangement, carries out the cross lapping through the lapping machine after that, forms cloth form base fabric, and is elongated by the draft of the specific multiplying power of a plurality of drafts again, then gets into spunlace machine and consolidates many times, and multistage stoving through the drying-machine at last is obtained polyethylene spunlace base fabric.
Preferably, among the A2, the compound of PTFE membrane and polyethylene glycol ester water thorn base cloth is promptly through oily glue compounding machine, with compound glue through initial point roller transfer to polyethylene glycol ester water thorn base cloth, place the PTFE membrane in again on the polyethylene glycol ester water thorn base cloth after gluing, send into the rubber roller together, the pressure that utilizes the rubber roller is with film and polyethylene glycol ester water thorn base cloth laminating together, then heat through the circle roller and make the solvent volatilization in compound glue water, place 24h at room temperature at last, wait that compound glue solidification is just obtained compound base cloth completely.
Preferably, in a3, the formation of the foamed silica gel points is to transfer the liquid silica gel to the composite base cloth by a cylinder transfer method, specifically, the prepared silicone rubber liquid is poured into a slurry barrel, then the silicone rubber liquid is beaten into a silica gel pipe with distributed holes from the slurry barrel by a slurry feeding pump, the liquid flows into the cylinder from the silica gel pipe under the action of gravity, the composite base cloth passes through the bottom of the cylinder, and a scraper inside the cylinder transfers the point-like liquid silica gel in the cylinder holes to the composite base cloth.
Preferably, in the step S1, the inner-layer fabric is prepared by using the fiber blended by the phase-change microcapsules to replace the existing common flame-retardant cotton fabric, so that the independent control of the internal temperature of the fire-fighting clothing is realized.
The invention has the technical effects and advantages that:
the invention provides a three-layer-structure firefighter uniform with a self-cleaning function and a production method thereof2The method of the nanometer mixture realizes self-cleaning and light weight of the fire-fighting clothing, and meanwhile, the flame-retardant silica gel point composite fabric prepared by attaching silica gel points and supporting PTFE films to the Polyimide (PI) fiber-polyethylene glycol 95 spunlace base fabric replaces the traditional two-layer fabric of a waterproof moisture permeable layer and a heat insulation layer, so that the number of layers of the clothing is reduced, and the fire-fighting clothing has lighter and thinner appearance, higher efficient thermal protection performance and more comfortable wearability; in addition, a super-hydrophobic interface is formed by water repellent finishing of the fire protection layer, dust type stains are removed from the surface by utilizing a lotus leaf effect theory, and organic stains are chemically decomposed into carbon dioxide, water and other small molecules by utilizing a photocatalysis technology, so that the self-cleaning effect of the stains on the surface of the fire-fighting clothing is realized.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a schematic view of a fire-fighting garment of the present invention;
FIG. 2 is a schematic view of a fabric making-cylinder transfer process of the present invention;
FIG. 3 is a schematic diagram of an arrangement of glue sites and a physical embodiment of the present invention;
FIG. 4 is a schematic representation of a fabric structure according to the present invention;
FIG. 5 is a flow chart of the method of making the firefighter uniform of the present invention;
FIG. 6 is a schematic diagram of the self-cleaning function of the outer-flame-retardant protective layer in the present invention;
FIG. 7 is a schematic diagram of an inner layer-comfort layer implementation of the present invention;
in the figure: 1. an outer layer fabric; 2. the middle layer fabric; 3. inner layer fabric; 4. a pulp barrel; 5. feeding a slurry pump; 6. a pulp scraping pipe; 7. a baffle plate; 8. a clamp; 9, a scraper; 10. a mesh; 11. and (3) compounding base cloth.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 7, the three-layer firefighter uniform with the self-cleaning function comprises an outer layer fabric 1, a middle layer fabric 2 and an inner layer fabric 3; the middle layer fabric 2 is positioned between the outer layer fabric 1 and the inner layer fabric 3;
the outer layer fabric 1 is mainly made of a flame-retardant fabric woven from polyimide fiber-polyethylene 95, and the outer layer of the flame-retardant fabric is coated with a fluorinated polysiloxane hydrophobic adhesive and TiO2A nanoparticle mixed solution;
the middle layer fabric 2 is mainly of a flame-retardant silica gel point composite fabric structure consisting of flame-retardant silica gel points, polyethylene spunlace base fabric and a PTFE (polytetrafluoroethylene) film;
the inner layer fabric 3 is mainly made of spinning fabric prepared by blending phase change microcapsules and acrylic fibers.
A production method of a three-layer structure firefighter uniform with a self-cleaning function comprises the following steps:
s1: preparing the firefighter uniform fabric: specifically, preparing an outer layer fabric, preparing a middle layer fabric and preparing an inner layer fabric;
s2: through the analysis of the movement posture, joint parts, stress points, contact forms and psychological needs of the classical actions of the firefighter rescue scene, the design key points and style requirements of the firefighter uniform are determined;
s3: according to the analysis of the step S2, cutting the fabrics of each layer prepared in the step S1 into corresponding garment pieces according to the style of the garment to be prepared;
s4: and (5) sequentially sewing the layers of the garment pieces obtained in the step S3 by using flame-retardant threads and sealant until the production and the manufacture of the fire-fighting garment are finished.
As an embodiment of the present invention, in S1, the outer layer fabric is prepared by selecting a flame retardant fabric woven from polyimide fiber-polyethylene 95 as a base material, and coating a solution of a hydrophobic fluorosilicone binder and TiO2 nanoparticles on a surface of the base material.
Specifically, the flame-retardant fabric woven by the polyimide fiber-polyethylene 95 has excellent flame retardant property, high temperature resistance, heat insulation property, high modulus and friction resistance, and is coated with the hydrophobic fluoro polysiloxane adhesive and TiO2The nano-particle mixed solution realizes the purpose of self-cleaning of fixed particles and organic stains; the method for realizing self-cleaning of solid particle stains and organic stains by utilizing the lotus leaf effect and the photocatalysis comprises the following specific realization principles:
when dust particles are deposited on the surface of the firefighter uniform, the dust particles can be carried away by rolling of water drops (e.g., rainwater) on the surface of the firefighter uniform, and self-cleaning of such stains is achieved;
for organic stains: when organic pollutants are deposited on the surface of the fire-fighting clothing, the pollutants are decomposed into CO by photocatalysis2And H2O small molecules, realizing self-cleaning of the stains.
As an embodiment of the present invention, in S1, the preparation of the intermediate layer fabric, that is, the preparation of the flame-retardant silica gel dot composite fabric structure composed of the flame-retardant silica gel dots, the polyethylene spunlace base fabric, and the PTFE film, specifically includes the following steps:
a1: preparing polyimide fiber-polyethylene 95 spunlaced base fabric;
a2: compounding a PTFE membrane and polyethylene spunlace base cloth;
a3: and forming foaming silica gel dots.
As an embodiment of the present invention, in a1, the preparation of the polyimide fiber-polyethylene 95 spunlace base fabric is that the raw material of the polyimide fiber-polyethylene 95 fiber is subjected to opening and mixing by an opener, then carded by a carding machine to arrange the fibers in order along the same direction, then cross-lapped by a lapping machine to form a cloth-like base fabric, then drawn and elongated by multiple drafting ratios, and then enters the spunlace machine for multiple times to reinforce, and finally, multi-stage drying is performed by a dryer, so as to obtain the polyethylene spunlace base fabric.
Specifically, wherein, the infiltration of external liquid water can effective separation of PTFE membrane, guarantees inside and outside humidity and keeps apart, and polyethylene spunlace base fabric realizes thermal-insulated and ventilative effect.
In an embodiment of the invention, in a2, the composite of the PTFE film and the polyethylene spunlace base fabric is obtained by an oil-based adhesive compounding machine, the composite adhesive is transferred to the polyethylene spunlace base fabric through an origin roller, the PTFE film is placed on the polyethylene spunlace base fabric after being glued, the polyethylene spunlace base fabric and the polyethylene spunlace base fabric are fed into a rubber roller together, the film and the polyethylene spunlace base fabric are adhered together by using the pressure of the rubber roller, then the solvent in the composite adhesive is volatilized by heating the composite adhesive through the roller, and finally the composite adhesive is placed at room temperature for 24 hours until the composite adhesive is completely cured to obtain the composite base fabric.
In an embodiment of the invention, in a3, the foamed silica gel dots are formed by transferring liquid silica gel onto the composite base fabric by a cylinder transfer method, specifically, the prepared silica gel liquid is poured into a slurry barrel, the silica gel liquid is pumped into a silica gel pipe with distributed pores from the slurry barrel by a slurry feeding pump, the liquid flows into the cylinder from the silica gel pipe under the action of gravity, the composite base fabric passes through the bottom of the cylinder, and a scraper inside the cylinder transfers the dot-shaped liquid silica gel in the cylinder pores onto the composite base fabric.
Specifically, the liquid silicone rubber is formed by mixing a material a and a material b according to a certain proportion, wherein the component a is silicone rubber, and the component b is a curing agent; as shown in fig. 2, the curing and foaming of the liquid silicone rubber, namely, the composite base cloth covered with the dotted liquid silicone rubber horizontally moves forward at a constant speed under the traction action of the chains at two sides until the composite base cloth enters a multi-stage oven, the temperature in the oven is gradually increased, the liquid silicone rubber is subjected to a cross-linking curing reaction to complete a foaming process, and finally, the foaming silicone rubber is subjected to spot cooling and forming to obtain the middle layer fabric;
description of arrangement and size of the glue dots:
the density of the silicon rubber dots is 0.4g/cm3, the foaming ratio is three times, the thermal conductivity is small (about 0.2W/(m x k)), the silicon rubber dots have good temperature resistance, the silicon rubber dots can be used for a long time at the temperature of 60 ℃ below zero to 260 ℃, the silicon rubber dots are uniformly distributed on the composite base cloth, the area coverage rate is controlled to be (24 +/-2)%, the silicon rubber dots are semi-elliptical after molding, and the arrangement mode and the object diagram (taking small silicon rubber dots as an example) are shown in figure 3; because the proportion of the silica gel point relative to the whole composite fabric is small and the silica gel point is in point contact with one side of the fabric, the supporting function of an air layer formed by an isolation space is mainly considered;
as an embodiment of the invention, in S1, the inner layer fabric is prepared by using the phase-change microcapsule blended fiber instead of the existing common flame-retardant cotton fabric, so as to achieve the autonomous control of the internal temperature of the fire-fighting clothing.
Specifically, because the outer flame-retardant heat-insulating effect is greatly improved, the comfortable layer does not need to consider relatively high protective performance, and only the problem of the heat and humidity comfort of the moisture-absorbing and sweat-releasing lamp is considered.
The phase-change material is an intelligent material for adjusting the environmental temperature by absorbing or releasing heat, the process is reversible, the heat generated by a fireman during rescue cannot be discharged through a conventional clothing opening, the balance of the internal temperature of the fireman can be adjusted through the dynamic heat energy storage and heat energy release process, the phase-change material in a microcapsule form is generally adopted for adjustment, when the heat accumulation in the firefighter uniform is high, the temperature can exceed the temperature rising threshold value of the phase-change material, the phase-change material can be liquefied in a short time to absorb the heat, the environmental heat in the garment is adjusted and reduced, and the interior of the firefighter uniform is in a relatively comfortable stable state.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (8)

1. The utility model provides a three layer construction fire-entry suit with self-cleaning function which characterized in that: comprises an outer layer fabric (1), a middle layer fabric (2) and an inner layer fabric (3); the middle layer fabric (2) is positioned between the outer layer fabric (1) and the inner layer fabric (3);
the outer layer fabric (1) is mainly made of a flame-retardant fabric woven from polyimide fiber-polyethylene 95, and the outer layer of the flame-retardant fabric is coated with a fluorinated polysiloxane hydrophobic adhesive and TiO2A nanoparticle mixed solution;
the middle layer fabric (2) is mainly of a flame-retardant silica gel point composite fabric structure consisting of flame-retardant silica gel points, polyethylene spunlace base cloth and PTFE films;
the inner layer fabric (3) is mainly made of spinning fabric prepared by blending phase change microcapsules and acrylic fibers.
2. A production method of a three-layer structure firefighter uniform with a self-cleaning function is characterized in that: the production method comprises the following steps:
s1: preparing the firefighter uniform fabric: specifically, preparing an outer layer fabric, preparing a middle layer fabric and preparing an inner layer fabric;
s2: through the analysis of the movement posture, joint parts, stress points, contact forms and psychological needs of the classical actions of the firefighter rescue scene, the design key points and style requirements of the firefighter uniform are determined;
s3: according to the analysis of the step S2, cutting the fabrics of each layer prepared in the step S1 into corresponding garment pieces according to the style of the garment to be prepared;
s4: and (5) sequentially sewing the layers of the garment pieces obtained in the step S3 by using flame-retardant threads and sealant until the production and the manufacture of the fire-fighting garment are finished.
3. The method for producing a three-layer structure firefighter uniform with a self-cleaning function according to claim 2, wherein: in the S1, the outer layer fabric is prepared by selecting the flame-retardant fabric woven by polyimide fiber-polyethylene 95 as a base material, and mixing the hydrophobic fluoro-polysiloxane adhesive and TiO2And coating the nano-particle mixed solution on the surface of the base material to obtain the outer-layer fabric.
4. The method for producing a three-layer structure firefighter uniform with a self-cleaning function according to claim 3, wherein: in S1, preparing a middle layer fabric, namely preparing a flame-retardant silica gel point composite fabric structure consisting of flame-retardant silica gel points, polyethylene spunlace base cloth and a PTFE film, and specifically comprises the following steps:
a1: preparing polyimide fiber-polyethylene 95 spunlaced base fabric;
a2: compounding a PTFE membrane and polyethylene spunlace base cloth;
a3: and forming foaming silica gel dots.
5. The method for producing a three-layer structure firefighter uniform with a self-cleaning function according to claim 4, wherein: in A1, the preparation of polyimide fibre-polyethylene 95 spunlace base cloth opens the mixture through the opener with polyimide fibre-polyethylene 95's fiber raw materials promptly, combs by the carding machine again, makes the fibre along same direction orderly arrangement, carries out alternately lapping through the lapping machine after that, forms cloth form base cloth, and is elongated by the specific multiplying power draft of a plurality of drafts again, then gets into spunlace machine and consolidate many times, through the multistage stoving of drying-machine at last, gets polyethylene 95 spunlace base cloth.
6. The method for producing a three-layer structure firefighter uniform with a self-cleaning function according to claim 5, wherein: in A2, the compound of PTFE membrane and polyethylene spunlace base cloth is promptly through oily compound machine of gluing, with compound glue through original point roller transfer to polyethylene spunlace base cloth, place the PTFE membrane in again on the polyethylene spunlace base cloth after gluing, send into the rubber roller together, the pressure that utilizes the rubber roller is with film and polyethylene spunlace base cloth laminating together, then heat the solvent that makes compound glue water through the circle roller and volatilize, place 24h at the room temperature at last, wait that compound glue solidification is just obtained compound base cloth completely.
7. The method for producing a three-layer structure firefighter uniform with a self-cleaning function according to claim 6, wherein: in A3, the formation of foaming silica gel point adopts the mould transfer method promptly to transfer liquid silicon rubber to compound base cloth, specifically for pour the silicon rubber liquid of joining in marriage into the thick liquid bucket, in the thick liquid pipe that has the distribution hole was beaten into to silicon rubber liquid from the thick liquid bucket to the thick liquid pump in, liquid flows into the mould from the silicon thick liquid pipe under the action of gravity, and compound base cloth passes through from the mould bottom, and the scraper of mould inside will be with the punctiform liquid silica gel in the hole of the mould transfer to compound base cloth.
8. The method for producing a firefighter uniform with a three-layer structure and a self-cleaning function according to claim 7, wherein: in the S1, the inner-layer fabric is prepared by adopting the phase-change microcapsule blended fiber to replace the existing common flame-retardant cotton fabric, so that the independent regulation and control of the internal temperature of the fire-fighting garment are realized.
CN202210088020.3A 2022-01-25 2022-01-25 Three-layer structure firefighter uniform with self-cleaning function and production method thereof Pending CN114434919A (en)

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