CN213491624U

CN213491624U - Fire-fighting underwear

Info

Publication number: CN213491624U
Application number: CN202022192362.9U
Authority: CN
Inventors: 佟兆文; 米西峰; 佟兆国; 杨霞; 孙倩倩; 孙俊楠
Original assignee: Taian Liyuan Industry & Trade Co ltd
Current assignee: Taian Liyuan Industry & Trade Co ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-06-22
Anticipated expiration: 2030-09-30

Abstract

The utility model discloses a fire-fighting underwear, which comprises an underwear front piece and an underwear rear piece, wherein the underwear front piece and the underwear rear piece are connected by sewing; the underwear front piece comprises a first high sweat absorption fabric, a first low sweat absorption fabric and a first protective fabric; the back piece of the underwear comprises a second high sweat-absorbent fabric, a second low sweat-absorbent fabric and a second protective fabric; the first high-sweat-absorption fabric and the second high-sweat-absorption fabric are composed of aramid fibers wrapped with bamboo fibers; the first low sweat absorption fabric and the second low sweat absorption fabric are made of aramid fibers wrapped with polypropylene fibers; the first protective fabric and the second protective fabric are made of aramid fibers. The utility model discloses use hot and humid travelling comfort surface fabric in the region of most easily perspiring, improve the travelling comfort of dress. The protective zone is arranged in the important area of the human body, the protective fabric is fixedly connected to the fire-fighting underwear at intervals through local connection, the gaps between the protective material and the fire-fighting underwear can be increased through the fixed connection at intervals, air convection is facilitated, and perspiration is facilitated.

Description

Fire-fighting underwear

Technical Field

The utility model relates to a function underwear technical field, concretely relates to fire control underwear.

Background

The firefighter uniform is one of important equipment for protecting the personal safety of firefighters who are active in the first line of fire protection, and is not only an indispensable necessity in a fire rescue scene, but also a fireproof tool for protecting the bodies of the firefighters from being injured. Therefore, firefighters need to protect themselves by the firefighters in daily work, and therefore, researches for improving the performance and functions of the firefighters are more.

The underwear worn by the firefighter is generally mainly common clothing. The application numbers are: 201610294715.1 discloses an explosion-proof underwear and its preparation method and application, the underwear is divided into two layers, the inner layer is silk layer, the outer layer is aramid fiber layer, but the fire-fighting underwear is directly contacted with human skin, the thermal-humidity comfort is satisfied to the maximum extent, the silk fabric is not only expensive, the heat dissipation is affected by the outer layer and the aramid fiber layer. Due to high strength, high modulus, low density, low thermal expansion coefficient and good fatigue resistance, the aramid fiber can maintain stable size and performance within the range of-192-182 ℃, and is not combusted and melted; the aramid fiber fabric is the most common shell fabric of the existing firefighter uniform, but the aramid fiber fabric has the defects of poor spinnability, difficult molding of high count yarn, high initial modulus, high rigidity, poor hygroscopicity, poor fit with a human body, itchy wearing and poor comfort, so the aramid fiber fabric is used for fewer firefighter underclothes at present. Therefore, the aramid fiber is required to be improved at present, so that the aramid fiber can be applied to the fire-fighting underwear, the fire-fighting underwear can meet the heat and humidity comfort to the maximum extent, sweat can be effectively removed, meanwhile, the aramid fiber can play the roles of non-combustion and explosion prevention in a fire scene, and the aramid fiber becomes the last protective barrier of a fireman.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned prior art, the utility model aims at providing a compound knitting yarn fire control underwear of aramid fiber. The utility model discloses a compound aramid fiber to and through carrying out the regionalism to the fire control underwear, different regional functions are different, select different materials for use, prepare into at last can perspire, fire-retardant, the multi-functional fire control underwear of protection.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the first aspect of the utility model provides a fire-fighting underwear, which comprises an underwear front piece and an underwear rear piece, wherein the underwear front piece and the underwear rear piece are connected by sewing;

the underwear front piece comprises a first high sweat absorption fabric, a first low sweat absorption fabric and a first protective fabric; the first high sweat-absorbent fabric and the first low sweat-absorbent fabric are connected in a sewing mode; the first high sweat-absorbent fabric comprises a front chest high sweat-absorbent fabric and a first armpit high sweat-absorbent fabric, the areas of the front chest high sweat-absorbent fabric and the first protective fabric are the same, the first protective fabric is positioned above the front chest high sweat-absorbent fabric, and the edge of the first protective fabric is connected with the edge of the front chest high sweat-absorbent fabric through a plurality of fixed connection points;

the back piece of the underwear comprises a second high sweat-absorbent fabric, a second low sweat-absorbent fabric and a second protective fabric; the second high sweat-absorbent fabric and the second low sweat-absorbent fabric are connected in a sewing mode; the second high sweat-absorbent fabric comprises a back high sweat-absorbent fabric and a second armpit high sweat-absorbent fabric, the back high sweat-absorbent fabric and the second protective fabric are the same in area, the second protective fabric is located above the back high sweat-absorbent fabric, and the edge of the second protective fabric is connected with the edge of the back high sweat-absorbent fabric through a plurality of fixed connection points;

the first underarm high-sweat-absorption fabric and the second underarm high-sweat-absorption fabric are the same in area, symmetrical and connected through sewing;

the first high-sweat-absorption fabric and the second high-sweat-absorption fabric are both composed of aramid fibers wrapped with bamboo fibers; the first low sweat absorption fabric and the second low sweat absorption fabric are both composed of aramid fibers wrapped with polypropylene fibers; the first protective fabric and the second protective fabric are both composed of aramid fibers;

the front chest high-sweat-absorbing fabric, the back high-sweat-absorbing fabric, the first armpit high-sweat-absorbing fabric and the second armpit high-sweat-absorbing fabric respectively correspond to the front chest, the back and the armpit parts of a human body.

The high-sweat-absorbing fabric for the chest corresponds to the chest part of a human body, the high-sweat-absorbing fabric for the back corresponds to the back part of the human body, and the high-sweat-absorbing fabric for the first armpit and the high-sweat-absorbing fabric for the second armpit correspond to the armpit part of the human body.

Preferably, the yarn count of the aramid fiber wrapped with the bamboo fiber is 38 to 40 seconds.

Preferably, the yarn count of the aramid fiber wrapped with polypropylene fiber is 38 to 40 seconds.

Preferably, the aramid fiber is para-aramid and has a fineness of 50D.

Preferably, the aramid fibers of the first protective fabric and the second protective fabric are para-aramid fibers, and the fineness of the para-aramid fibers is 100-200D. Although the fineness of the fiber is large and the protection effect can be improved when the fiber is used as the protective fabric, the fiber is too thick and the comfort of the underwear is affected when the fiber is used as the underwear. Therefore, the fiber of the protective fabric is preferably 100-200D.

Preferably, the edge of the first protective fabric is detachably connected with the edge of the high sweat absorbing fabric of the chest through a plurality of fixed connection points.

Preferably, the edge of the second protective fabric is detachably connected with the edge of the back high sweat absorption fabric through a plurality of fixed connection points. The connection mode of the fixed contact points can be snap button connection, magic tape connection or aramid fiber sewing connection. The snap button connection and the magic tape connection belong to a detachable connection mode.

Preferably, the fabric density of the first protective fabric is less than that of the front chest high-sweat-absorption fabric; the fabric density of the second protective fabric is smaller than that of the back high-sweat-absorption fabric. The first protective fabric and the second protective fabric are small in fabric density, so that the number of warp yarns or weft yarns in the unit length of the fabric is small, the first protective fabric and the second protective fabric mainly play a protective role, are the last protective barrier of a fireman and can protect the most important parts or organs of the fireman. The fabric has low density, does not influence the protective effect of the fabric, and can increase the air permeability.

Preferably, the intervals between the fixing points are all equal.

The second aspect of the utility model provides an application of foretell fire control underwear in fire rescue.

The utility model has the advantages that:

(1) the utility model discloses carry out the regionalism with the fire control underwear, use the hot and humid travelling comfort surface fabric in the region that should sweat most, it can effectively perspire to be the fire control underwear, improves the snugness of fit.

(2) The utility model discloses set up the guard zone in human important district to the great surface fabric in clearance is made into to high denier number aramid fiber as protective material, connects protective material interval rigid coupling on fire control underwear through the part, and the interval rigid coupling can increase protective material and fire control underwear's space, makes things convenient for the air convection, does benefit to the perspire.

(3) The utility model discloses use polypropylene fibre package to twine aramid composite fiber in other non-functional areas, can improve the weaving nature of aramid fiber, and the snugness of fit, can play the fire control effect again, can also reduce the cost of fire control underwear simultaneously.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a side view of the connection between the edge of the front chest high sweat absorbent fabric and the edge of the first protective fabric;

FIG. 3 is a side view of the connection between the edges of the back high sweat absorbing fabric and the edges of the second protective fabric;

wherein: 1. the underwear comprises an underwear front piece, an underwear rear piece, a front chest high-sweat-absorption fabric, a first low-sweat-absorption fabric, a first protective fabric, a first armpit high-sweat-absorption fabric, a back high-sweat-absorption fabric, a second low-sweat-absorption fabric, a second protective fabric, a second armpit high-sweat-absorption fabric and a fixing joint, wherein the front piece of the underwear is 2, the back piece of the underwear is 3, the front chest high-sweat-absorption fabric is 4, the first low-sweat-absorption fabric is 5, the first protective fabric is 6, the.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

As described in the background section, the prior art is very limited with respect to the design of fire-fighting undergarments, and firefighters essentially wear ordinary undergarments.

Based on the above, the utility model aims at providing a fire-fighting underwear made of aramid composite knitting yarns, as shown in fig. 1-3, which comprises an underwear front piece 1 and an underwear rear piece 2, wherein the underwear front piece 1 and the underwear rear piece 2 are connected by sewing;

the underwear front piece 1 comprises a first high sweat absorption fabric, a first low sweat absorption fabric 4 and a first protective fabric 5; the first high sweat-absorbent fabric and the first low sweat-absorbent fabric 4 are connected in a sewing mode; the first high sweat-absorbent fabric comprises a front chest high sweat-absorbent fabric 3 and a first underarm high sweat-absorbent fabric 6, the areas of the front chest high sweat-absorbent fabric 3 and the first protective fabric 5 are the same, the first protective fabric 5 is positioned above the front chest high sweat-absorbent fabric 3, and the edge of the first protective fabric 5 is connected with the edge of the front chest high sweat-absorbent fabric 3 through a plurality of fixing connection points 11;

the underwear back sheet 2 comprises a second high sweat absorption fabric, a second low sweat absorption fabric 8 and a second protective fabric 9; the second high sweat-absorbent fabric and the second low sweat-absorbent fabric 8 are connected in a sewing mode; the second high sweat-absorbent fabric comprises a back high sweat-absorbent surface 7 and a second underarm high sweat-absorbent surface fabric 10, the back high sweat-absorbent surface fabric 7 and a second protective surface fabric 9 are the same in area, the second protective surface fabric 9 is positioned above the back high sweat-absorbent surface fabric 7, and the edge of the second protective surface fabric 9 is connected with the edge of the back high sweat-absorbent surface fabric 7 through a plurality of fixed connection points 11;

the area of the first underarm high-sweat-absorption fabric 6 is the same as that of the second underarm high-sweat-absorption fabric 10, and the first underarm high-sweat-absorption fabric 6 and the second underarm high-sweat-absorption fabric 10 are symmetrical and connected through sewing;

the first high-sweat-absorption fabric and the second high-sweat-absorption fabric are both composed of aramid fibers wrapped with bamboo fibers; the first low sweat absorption fabric 4 and the second low sweat absorption fabric 8 are both composed of aramid fibers wrapped with polypropylene fibers; the first protective fabric 5 and the second protective fabric 9 are both made of aramid fibers;

the front chest high sweat absorbing fabric 3, the back high sweat absorbing fabric 7, the first underarm high sweat absorbing fabric 6 and the second underarm high sweat absorbing fabric 10 correspond to the front chest, the back and the underarm parts of a human body respectively.

The yarn count specification of the aramid fiber wrapping the bamboo fiber is 38-40 s. The yarn count specification of the aramid fiber wrapped with the polypropylene fiber is 38-40 s. The aramid fiber is para-aramid fiber, and the fineness of the para-aramid fiber is 50D. The aramid fibers of the first protective fabric 5 and the second protective fabric 9 are both para-aramid fibers, and the fineness of the para-aramid fibers is 100-200D. The edge of the first protective fabric 5 is detachably connected with the edge of the high sweat absorbing fabric 3 of the chest through a plurality of fixing points 11; the edge of the second protective fabric 9 is detachably connected with the edge of the back high sweat absorbing fabric 7 through a plurality of fixing points 11. The fabric density of the first protective fabric 5 is less than that of the front chest high sweat absorbing fabric 3; the fabric density of the second protective fabric 9 is smaller than that of the back high sweat absorption fabric 7. The intervals between the fixed contacts 11 are all equal.

The utility model discloses a nearly far infrared beam split image detection technique is to human sweat distribution research, makes clear and makes clear that human sweat discharges the distribution state, reveals each part materials design in underwear design process to adopt purpose-made aramid fiber to tailor the cutter and improve tailoring equipment, what have pertinence tailors the underwear surface fabric of firefighter. Finally, the style design of the underwear of the firefighter is carried out, and the functions of ventilation, perspiration and protection of important organs are achieved. The utility model discloses the people has selected 7 indexs that influence fasciated yarn comprehensive properties to test, including its elongation at break CV value, the powerful CV value of fracture, slub, neps, the evenness of strip, hygroscopicity, wearability, selected polypropylene fibre/aramid fiber long filament fasciated yarn, bamboo fibre/aramid fiber long filament fasciated yarn from nearly hundred kinds of fasciated yarns. And (4) weaving by using a double-needle bed computerized flat knitting machine according to the number of the aramid composite yarns. Through the subjective and objective evaluation research on the heat-humidity comfort of the aramid composite yarn underwear fabric with high moisture absorption comfort, the fire-fighting underwear is in direct contact with the skin of a human body, the heat-humidity comfort and the wearing and taking-off convenience are met to the greatest extent, and the structure of the fire-fighting underwear is determined. The utility model discloses a fire control underwear style is the undershirt, and the specification is formulated according to man's underwear specification. The utility model selects the sleeveless vest as the basic style structure of the fire-fighting cutting underwear. According to different sweat areas of the human body, different fabrics are adopted for the high sweat absorption area and the low sweat absorption area on the corresponding clothes for application design. Because aramid fiber has very high anti-shearing performance, ordinary cutting tools or manual cutting can not finish cutting aramid clothes at all, and need to be introduced or improve the existing equipment, and the aramid fiber cloth is cut by adopting a vibrating knife cutting machine and a laser cutting machine at present. The vibration knife aramid cloth cutting machine is used for cutting by a blade, the efficiency is 200-2000m/s, the vibration knife aramid cloth cutting machine is efficient and environment-friendly, the laser machine aramid cloth cutting machine is used for hot cutting, peculiar smell and smoke can be generated during cutting, the cutting speed is 200-1000mm/s, the efficiency is slower than that of the vibration knife aramid cloth cutting machine, the vibration knife aramid cloth cutting machine and the laser aramid cloth cutting machine are both provided with an automatic feeding system and super discharging software, and the material utilization rate is up to more than 95%.

In order to make the technical solutions of the present application more clearly understood by those skilled in the art, the technical solutions of the present application will be described in detail below with reference to specific embodiments.

Description of terms: the density of the fabric refers to the number of warp yarns or weft yarns in the fabric per unit length.

The test materials used in the embodiment of the utility model are the conventional test materials in the field, and can be purchased through commercial channels.

Example 1

And (3) performing weft knitting on the bamboo fiber/aramid fiber filament wrapped yarn with the yarn count of 38s by using a double-needle bed computerized flat knitting machine, and cutting the obtained fabric by using a vibrating knife according to templates with different shapes to respectively obtain a front chest high sweat absorbing fabric 3, a back high sweat absorbing fabric 7, a first axillary high sweat absorbing fabric 6 and a second axillary high sweat absorbing fabric 10.

And (3) performing weft knitting on the polypropylene fiber/aramid fiber filament wrapped yarn with the yarn count of 38s by using a double-needle bed computerized flat knitting machine, and cutting the obtained fabric by using a vibrating knife according to templates with different shapes to respectively obtain a second low-sweat-absorption fabric and a second low-sweat-absorption fabric 8.

Fabrics obtained by weft knitting of a double-needle bed computerized flat knitting machine on para-aramid fibers with the fineness of 100D are cut by using a vibrating knife according to templates with different shapes to respectively obtain a first protective fabric 5 and a second protective fabric 9.

Sewing the front chest high sweat absorbing fabric 3, the first underarm high sweat absorbing fabric 6, the first low sweat absorbing fabric 4 and the first protective fabric 5 to form an underwear front piece 1; sewing the back high sweat absorbing fabric 7, the second underarm high sweat absorbing fabric 10, the second low sweat absorbing fabric 8 and the second protective fabric 9 to form an underwear back sheet 2; the first armpit high sweat absorbing fabric 6 and the second armpit high sweat absorbing fabric 10 are symmetrically aligned, and the front underwear piece 1 and the back underwear piece 2 are sewn to form the fire-fighting underwear.

The front chest high sweat absorbing fabric 3 and the first protective fabric 5 and the back high sweat absorbing fabric 7 and the second protective fabric 9 can be connected together through a plurality of snap fasteners.

Example 2

And (3) wrapping and winding the bamboo fiber/aramid fiber filament yarn with the yarn count of 40s on a double-needle-bed computerized flat knitting machine for weft knitting, and cutting the obtained fabric by using a vibrating knife according to templates with different shapes to respectively obtain a front chest high sweat absorbing fabric 3, a back high sweat absorbing fabric 7, a first axillary high sweat absorbing fabric 6 and a second axillary high sweat absorbing fabric 10.

And (3) performing weft knitting on the polypropylene fiber/aramid fiber filament wrapped yarn with the yarn count of 40s by using a double-needle bed computerized flat knitting machine, and cutting the obtained fabric by using a vibrating knife according to templates with different shapes to respectively obtain a second low-sweat-absorption fabric and a second low-sweat-absorption fabric 8.

Fabrics obtained by weft knitting of a double-needle bed computerized flat knitting machine on para-aramid fibers with the fineness of 200D are cut by using a vibrating knife according to templates with different shapes to respectively obtain a first protective fabric 5 and a second protective fabric 9.

The high sweat-absorbing fabric 3 of the front chest and the first protective fabric 5 and the high sweat-absorbing fabric 7 of the back and the second protective fabric 9 can be connected together through a plurality of magic tapes.

Test example 1

In order to be closer to the cognitive feeling of the human body, the heat-humidity comfort of the underwear fabric is objectively evaluated by adopting a human body wearing experiment.

The test uses the sweating thermal manikin dummy to detect the heat and humidity comfort of the fire-fighting underwear, the sweating thermal manikin dummy is purchased from a standard group (hong Kong) Co., Ltd, and the test is carried out after the sensors and the monitoring systems are connected according to the requirements of the specification. After the test was completed, the thermal resistance value and the moisture resistance value of the underwear were obtained by the analysis software, and the obtained results are shown in table 1.

TABLE 1 test results

Item	Thermal resistance value m²·k/W	Wet resistance value Pa.m²/W
			Chest piece	0.181	54.011
Back	0.176	53.986
			Axilla region	0.171	54.320

Thermal resistance is the amount of dry heat flow through a given area of a textile under a steady temperature gradient. As can be seen from Table 1, the thermal resistance of the underarm is the smallest, which indicates that the heat dissipation performance of the underarm part is the best, and indicates that the fabric of the underarm part has good air permeability, thus being beneficial to perspiration.

Wet resistance means the amount of evaporative heat flux through an area of the textile under a steady water vapor pressure gradient. As can be seen from Table 1, the maximum underarm wet-resistance indicates the best moisture absorption of the fabric at the underarm area.

The first protective fabric and the second protective fabric are arranged above the high-sweat-absorbing front-chest fabric and the high-sweat-absorbing back fabric, so that the air permeability and the heat and humidity of the front chest and the back are influenced. The first protective fabric and the second protective fabric are connected with the chest high-sweat-absorbing fabric and the back high-sweat-absorbing fabric through the plurality of fixing points, and the density of the protective fabric is low, so that the heat-humidity performance of the chest and the back is not greatly influenced. Can still maintain the original heat and moisture.

Test example 2

The subjective evaluation details of the fire-fighting underwear fabric are as follows:

during the test, the environmental conditions of the artificial climate chamber are controlled: temperature 30 ℃ relative humidity 60%, which was kept substantially constant during the test, 20 volunteer subjects were recruited, the subjects were wearing the fire-fighting underwear prepared in example 2 and the same coat on their upper body; the lower garment was worn with uniform cotton trousers and running shoes to record the feeling of wetness and tightness and adhesion of the subject during exercise. The running speed is set to be constant at 9km/h by adopting the running mode of the running machine, the subjective feeling grade is recorded every 15min, and the user has a rest for 5min after drinking two mouths of water. This process was repeated 3 times, i.e., 3 subjective feelings were measured, and the results of the subjective feelings were counted according to the scoring criteria of Table 2 and are shown in Table 3.

TABLE 2 Scoring criteria

TABLE 3

Score of	Feeling of oppression in dampness	Sensation of blocking
			Average score	83.5	89.5

As can be seen from table 3, the fire-fighting underwear prepared in example 2 scored excellent wet tightness and blocking feeling when the subject experienced heavy exercise and experienced much sweating. Show and wear the utility model discloses a fire control underwear can satisfy hot wet travelling comfort, and the experience of wearing of ventilative perspire feels better.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A fire-fighting underwear is characterized by comprising an underwear front piece and an underwear rear piece, wherein the underwear front piece and the underwear rear piece are connected by sewing;

2. The fire-fighting underwear of claim 1, wherein the aramid fiber wrapped with bamboo fiber has a yarn count of 38-40 s.

3. The fire-fighting underwear of claim 1, wherein the aramid fiber wrapped with polypropylene fiber has a yarn count of 38-40 s.

4. A fire-fighting undergarment according to claim 2 or 3, wherein the aramid fiber is para-aramid and has a fineness of 50D.

5. The fire-fighting underwear of claim 1, wherein the aramid fibers of the first protective fabric and the second protective fabric are para-aramid fibers, and the fineness of the para-aramid fibers is 100-200D.

6. A fire-fighting undergarment according to claim 1 or claim 5 wherein the edges of the first protective face fabric are removably attached to the edges of the high sweat absorbing front chest fabric by fastening points.

7. A fire-fighting undergarment according to claim 1 or claim 5 wherein the edges of the second protective face fabric are removably connected to the edges of the high sweat-absorbing back fabric by fastening points.

8. A fire-fighting undergarment according to claim 1 or 5 wherein the first protective shell fabric has a fabric density less than that of the high sweat-absorbent front chest shell fabric; the fabric density of the second protective fabric is smaller than that of the back high-sweat-absorption fabric.

9. A fire fighting undergarment according to claim 1 wherein the attachment points are all equally spaced.