Lightweight fire fighting glove and method of making

Abstract

The present application relates to a kind of lightweight fire-fighting gloves and its preparation method, belong to fire-fighting gloves technical field, fire-fighting gloves are obtained by aramid 1414 / volcanic rock chinlon core yarn and aramid 1414 / plant charcoal chinlon core yarn weaving, the aramid 1414 / volcanic rock chinlon core yarn specifically is: with 30-40D volcanic rock filament one of one of aramid 1414 filament 35-45D as core and carries out core spinning.This application uses aramid 1414 filament as core, respectively prepares aramid 1414 / volcanic rock chinlon core yarn, aramid 1414 / plant charcoal chinlon core yarn, two kinds of core yarn are mixed and woven to obtain lightweight fire-fighting gloves according to specific proportion, aramid 1414 core silk guarantees glove intrinsic flame retardant and basic mechanical strength.

Description

Technical Field

[0001] This invention belongs to the field of fire-fighting glove technology, specifically relating to a lightweight fire-fighting glove and its preparation method. Background Technology

[0002] Fireproof gloves are a type of special protective equipment used to protect hands in high-temperature or open-flame environments. They are usually made of flame-retardant and heat-insulating materials and are professional protective tools for workers in fire protection, industry, and other fields. Their core function is to isolate heat sources and prevent burns, while also being wear-resistant and flexible in operation.

[0003] Most existing firefighting gloves use a multi-layered composite structure consisting of an outer layer, a waterproof membrane, a heat insulation layer, and a lining. These gloves are heavy and rigid, lacking dexterity and hindering firefighters' precision work. Weight reduction solutions often sacrifice mechanical protection such as puncture and tensile strength. In addition, traditional firefighting gloves lack antibacterial properties, making them prone to microbial growth in the complex environment of a fire, posing a health and safety hazard. Summary of the Invention

[0004] The purpose of this invention is to provide a lightweight fire-fighting glove and its preparation method in order to solve the above-mentioned problems.

[0005] The present invention achieves the above objectives through the following technical solutions: This invention provides a lightweight firefighting glove, which is woven from aramid 1414 / volcanic rock nylon core-spun yarn and aramid 1414 / vegetable charcoal nylon core-spun yarn.

[0006] As a further optimization of the present invention, the aramid 1414 / volcanic rock nylon core-spun yarn is specifically: using one of the aramid 1414 filaments of 35-45D as the core and one of the volcanic rock filaments of 30-40D as the core for core-spun yarn.

[0007] As a further optimization of the present invention, the volcanic rock filament is polymerized and spun by adding volcanic rock masterbatch before spinning. The volcanic rock masterbatch contains 6-10% volcanic rock particles and the remainder is polyamide particles. The amount of volcanic rock masterbatch added during spinning is 8-12%, and the remainder is polyamide particles.

[0008] As a further optimization of the present invention, the preparation process of volcanic rock particles is as follows: volcanic rock is ground into particles with a particle size of 500-650nm, and mixed with nano-zirconium phosphate silver-loaded antibacterial agent to obtain volcanic rock particles; the mass ratio of the nano-zirconium phosphate silver-loaded antibacterial agent to the ground particles is 1:0.1.

[0009] As a further optimization of the present invention, the aramid 1414 / vegetable charcoal nylon core-spun yarn is specifically made by using one of the aramid 1414 filaments of 35-45D as the core and one of the 30-40D plant charcoal filaments as the core.

[0010] As a further optimization of the present invention, the plant charcoal filament is produced by adding plant charcoal masterbatch before spinning and then polymerizing and spinning it. The plant charcoal masterbatch contains 6-10% plant charcoal particles and the remainder is polyamide particles. The amount of plant charcoal masterbatch added during spinning is 8-12%, and the remainder is polyamide particles.

[0011] As a further optimization of the present invention, the preparation process of plant charcoal particles is as follows: S1. Bamboo charcoal powder, pine charcoal powder and lychee charcoal powder are mixed in ethanol at a mass ratio of 1:0.2:0.5. After heating at 140-160℃ for 1-2 hours, the mixture is washed 3-5 times by centrifugation with deionized water to obtain plant charcoal precipitate. S2, mix sericite with ethanol solution at a ratio of 1:2 (v / v), add 10-15 wt% dodecyl quaternary ammonium salt of sericite to the mixture to obtain a mixture, stir, add 0.8-1.5 wt% silane coupling agent KH-560 of sericite and mix, adjust the pH to 6.0-7.5, stir and heat to 70℃ and maintain for 1-2 h, cool and centrifuge to obtain sericite mixture; S3. Mix the plant charcoal precipitate and sericite mixture at a mass ratio of 0.3:0.5, stir at 55-70℃ for 1-2 hours, filter using a filter membrane, collect the solid on the filter membrane, and dry to obtain plant charcoal powder.

[0012] As a further optimization of the present invention, the median flake diameter D50 of the sericite powder is 500-1000 nm, and the flake thickness is 50-200 nm.

[0013] As a further optimization of the present invention, the particle size D50 of bamboo charcoal powder, pine charcoal powder and lychee charcoal powder are all 100-300nm.

[0014] This invention also provides a method for preparing lightweight fire-fighting gloves, comprising the following steps: S1, Yarn winding machine: Aramid 1414 / volcanic rock nylon core-spun yarn and aramid 1414 / vegetable charcoal nylon core-spun yarn are respectively installed on the yarn frame. The yarn passes through the tensioner and yarn breakage detection device in sequence. The tension of the yarn winding machine is controlled at 3-6cN. S2, Cuff Knitting: Computer program-controlled yarn guide and rib knitting of glove cuffs; S3, palm and five fingers knitting: switch to single-sided plain knit structure, feed the two types of core-spun yarns into the knitting at a mass ratio of 45-52:36-40, knit the palm and back of the hand in sequence, then knit the thumb and the other four fingers separately; control the cylinder speed at 22-28r / min; S4, fingertip finishing: The fingertips of all five fingers are finished with automatic loop finishing to complete the glove blank knitting; S5, Post-setting: The glove blank is heat-set at 140-145℃ with low tension to obtain lightweight fire gloves.

[0015] The beneficial effects of this invention are as follows: This invention uses aramid 1414 filament as the core to prepare aramid 1414 / volcanic rock nylon core-spun yarn and aramid 1414 / plant charcoal nylon core-spun yarn respectively. The two types of core-spun yarn are blended in a specific ratio to obtain lightweight fire-fighting gloves. The aramid 1414 core yarn ensures the intrinsic flame retardancy and basic mechanical strength of the gloves. The volcanic rock component carries a silver-loaded antibacterial agent to achieve antibacterial function, and the modified plant charcoal synergistically blocks heat radiation. The core-spun yarn structure can protect the aramid core yarn, improve the fabric's breaking strength and puncture resistance. The two types of core-spun yarn are blended and woven into one piece, eliminating the need for thick composite layers, thus achieving lightweight and flexible wearing. Detailed Implementation

[0016] The present application will now be described in further detail. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0017] Unless otherwise specified, all methods used in this invention are conventional methods known to those skilled in the art, and all reagents and materials used are commercially available products.

[0018] Example 1: The preparation process of volcanic rock particles is as follows: volcanic rock is ground into particles with a particle size of 500 nm, and then mixed with nano-zirconium phosphate silver-loaded antibacterial agent to obtain volcanic rock particles; the mass ratio of the nano-zirconium phosphate silver-loaded antibacterial agent to the ground particles is 1:0.1. The volcanic rock filaments are produced by adding volcanic rock masterbatch before spinning and then polymerizing and spinning them. The volcanic rock masterbatch contains 6% volcanic rock particles and the remainder is polyamide particles. The amount of volcanic rock masterbatch added during spinning is 8%, and the remainder is polyamide particles. The aramid 1414 / volcanic rock nylon core-spun yarn is specifically made by using one of the 35D aramid 1414 filaments as the core and one of the 30D volcanic rock filaments as the core. The preparation process of plant charcoal granules is as follows: S1. Bamboo charcoal powder, pine charcoal powder and lychee charcoal powder (the particle size D50 of bamboo charcoal powder, pine charcoal powder and lychee charcoal powder are all 100nm) are mixed in ethanol at a mass ratio of 1:0.2:0.5. After heating at 140℃ for 1 hour, the mixture is washed three times by centrifugation with deionized water to obtain plant charcoal precipitate. S2, sericite and ethanol solution are mixed at a ratio of 1:2 (v / v), and 10 wt% of dodecyl quaternary ammonium salt of sericite is added to the mixed solution to obtain a mixture. After stirring, 0.8 wt% of silane coupling agent KH-560 of sericite is added and mixed. The pH is adjusted to 6.0, stirred and heated to 70°C and kept for 1 hour. After cooling, the mixture is centrifuged to obtain a sericite mixture. S3, the plant char precipitate and sericite (the median flake diameter D50 of sericite powder is 500 nm and the flake thickness is 50 nm) were mixed at a mass ratio of 0.3:0.5, stirred at 55℃ for 1 h, filtered with a filter membrane, the solid on the filter membrane was collected, and dried to obtain plant char powder. The plant charcoal filament is produced by adding plant charcoal masterbatch before spinning and then polymerizing and spinning it. The plant charcoal masterbatch contains 6% plant charcoal particles and the remainder is polyamide particles. The amount of plant charcoal masterbatch added during spinning is 8%, and the remainder is polyamide particles. The aramid 1414 / vegetable charcoal nylon core-spun yarn is specifically made by using one of the 35D aramid 1414 filaments as the core and one of the 30D plant charcoal filaments as the core. The method for preparing lightweight firefighting gloves includes the following steps: S1, Yarn winding machine: Aramid 1414 / volcanic rock nylon core-spun yarn and aramid 1414 / vegetable charcoal nylon core-spun yarn are respectively installed on the yarn frame. The yarn passes through the tensioner and yarn breakage detection device in sequence. The tension of the yarn winding machine is controlled at 3cN. S2, Cuff Knitting: Computer program-controlled yarn guide and rib knitting of glove cuffs; S3, palm and five fingers knitting: switch to single-sided plain knit structure, feed the two types of core-spun yarns into the knitting at a mass ratio of 45:36, knit the palm and back of the hand in sequence, then knit the thumb and the other four fingers separately; control the cylinder speed at 22r / min; S4, fingertip finishing: The fingertips of all five fingers are finished with automatic loop finishing to complete the glove blank knitting; S5, Post-setting: The glove blank is heat-set at 140℃ with low tension to obtain lightweight fire gloves.

[0019] Example 2: The preparation process of volcanic rock particles is as follows: volcanic rock is ground into particles with a particle size of 550 nm, and then mixed with nano-zirconium phosphate silver-loaded antibacterial agent to obtain volcanic rock particles; the mass ratio of the nano-zirconium phosphate silver-loaded antibacterial agent to the ground particles is 1:0.1. The volcanic rock filaments are produced by adding volcanic rock masterbatch before spinning and then polymerizing and spinning them. The volcanic rock masterbatch contains 8% volcanic rock particles and the remainder is polyamide particles. The amount of volcanic rock masterbatch added during spinning is 10%, and the remainder is polyamide particles. The aramid 1414 / volcanic rock nylon core-spun yarn is specifically made by using one of the 40D aramid 1414 filaments as the core and one of the 35D volcanic rock filaments as the core. The preparation process of plant charcoal granules is as follows: S1. Bamboo charcoal powder, pine charcoal powder and lychee charcoal powder (the particle size D50 of bamboo charcoal powder, pine charcoal powder and lychee charcoal powder are all 200nm) are mixed in ethanol at a mass ratio of 1:0.2:0.5. After heating at 150℃ for 1.5h, the mixture is washed 4 times by centrifugation with deionized water to obtain plant charcoal precipitate. S2, sericite and ethanol solution are mixed at a ratio of 1:2 (v / v), and 12 wt% of dodecyl quaternary ammonium salt of sericite is added to the mixed solution to obtain a mixture. After stirring, 1.2 wt% of silane coupling agent KH-560 of sericite is added and mixed. The pH is adjusted to 7.0, and the mixture is stirred and heated to 70°C and maintained for 1.5 h. After cooling, the mixture is centrifuged to obtain a sericite mixture. S3. The mixture of plant charcoal precipitate and sericite (the median flake diameter D50 of sericite powder is 850 nm and the flake thickness is 150 nm) is mixed at a mass ratio of 0.3:0.5 and stirred at 60°C for 1.5 h. The mixture is then filtered through a filter membrane, the solids on the filter membrane are collected, and the plant charcoal powder is obtained after drying. The plant charcoal filament is produced by adding plant charcoal masterbatch before spinning and then polymerizing and spinning it. The plant charcoal masterbatch contains 8% plant charcoal particles and the remainder is polyamide particles. The amount of plant charcoal masterbatch added during spinning is 10%, and the remainder is polyamide particles. The aramid 1414 / vegetable charcoal nylon core-spun yarn is specifically made by using one of the 40D aramid 1414 filaments as the core and one of the 35D vegetable charcoal filaments as the core. The method for preparing lightweight firefighting gloves includes the following steps: S1, Yarn winding machine: Aramid 1414 / volcanic rock nylon core-spun yarn and aramid 1414 / vegetable charcoal nylon core-spun yarn are respectively installed on the yarn frame. The yarn passes through the tensioner and yarn breakage detection device in sequence. The tension of the yarn winding machine is controlled at 5cN. S2, Cuff Knitting: Computer program-controlled yarn guide and rib knitting of glove cuffs; S3, palm and five fingers knitting: switch to single-sided plain knit structure, feed the two types of core-spun yarns into the knitting at a mass ratio of 50:38, knit the palm and back of the hand in sequence, then knit the thumb and the other four fingers separately; control the cylinder speed at 26r / min; S4, fingertip finishing: The fingertips of all five fingers are finished with automatic loop finishing to complete the glove blank knitting; S5, Post-setting: The glove blank is heat-set at 142℃ with low tension to obtain lightweight fire gloves.

[0020] Example 3: The preparation process of volcanic rock particles is as follows: volcanic rock is ground into particles with a particle size of 650 nm, and then mixed with nano-zirconium phosphate silver-loaded antibacterial agent to obtain volcanic rock particles; the mass ratio of the nano-zirconium phosphate silver-loaded antibacterial agent to the ground particles is 1:0.1. The volcanic rock filaments are produced by adding volcanic rock masterbatch before spinning and then polymerizing and spinning them. The volcanic rock masterbatch contains 10% volcanic rock particles and the remainder is polyamide particles. The amount of volcanic rock masterbatch added during spinning is 12%, and the remainder is polyamide particles. The aramid 1414 / volcanic rock nylon core-spun yarn is specifically made by using one of the 45D aramid 1414 filaments as the core and one of the 40D volcanic rock filaments as the core. The preparation process of plant charcoal granules is as follows: S1. Bamboo charcoal powder, pine charcoal powder and lychee charcoal powder (the particle size D50 of bamboo charcoal powder, pine charcoal powder and lychee charcoal powder are all 300nm) are mixed in ethanol at a mass ratio of 1:0.2:0.5. After heating at 160℃ for 2 hours, the mixture is washed 5 times by centrifugation with deionized water to obtain plant charcoal precipitate. S2, sericite and ethanol solution are mixed at a ratio of 1:2 (v / v), and 15 wt% of dodecyl quaternary ammonium salt of sericite is added to the mixed solution to obtain a mixture. After stirring, 1.5 wt% of silane coupling agent KH-560 of sericite is added and mixed. The pH is adjusted to 7.5, stirred and heated to 70°C and kept for 2 hours. After cooling, the mixture is centrifuged to obtain a sericite mixture. S3. The mixture of plant charcoal precipitate and sericite (the median flake diameter D50 of sericite powder is 1000 nm and the flake thickness is 200 nm) is mixed at a mass ratio of 0.3:0.5 and stirred at 70°C for 2 h. The mixture is then filtered through a filter membrane, the solid on the filter membrane is collected, and the plant charcoal powder is obtained after drying. The plant charcoal filament is produced by adding plant charcoal masterbatch before spinning and then polymerizing and spinning it. The plant charcoal masterbatch contains 10% plant charcoal particles and the remainder is polyamide particles. The amount of plant charcoal masterbatch added during spinning is 12%, and the remainder is polyamide particles. The aramid 1414 / vegetable charcoal nylon core-spun yarn is specifically made by using one of the 45D aramid 1414 filaments as the core and one of the 40D vegetable charcoal filaments as the core. The method for preparing lightweight firefighting gloves includes the following steps: S1, Yarn winding machine: Aramid 1414 / volcanic rock nylon core-spun yarn and aramid 1414 / vegetable charcoal nylon core-spun yarn are respectively installed on the yarn frame. The yarn passes through the tensioner and yarn breakage detection device in sequence. The tension of the yarn winding machine is controlled at 6cN. S2, Cuff Knitting: Computer program-controlled yarn guide and rib knitting of glove cuffs; S3, palm and five fingers knitting: switch to single-sided plain knit structure, feed the two types of core-spun yarns into the knitting at a mass ratio of 52:40, knit the palm and back of the hand in sequence, then knit the thumb and the other four fingers separately; control the cylinder speed at 28r / min; S4, fingertip finishing: The fingertips of all five fingers are finished with automatic loop finishing to complete the glove blank knitting; S5, Post-setting: The glove blank is heat-set at 145℃ with low tension to obtain lightweight fire gloves.

[0021] Comparative Example 1 The preparation process of volcanic rock particles is as follows: volcanic rock is ground into particles with a particle size of 550nm to obtain volcanic rock particles; The volcanic rock filaments are produced by adding volcanic rock masterbatch before spinning and then polymerizing and spinning them. The volcanic rock masterbatch contains 8% volcanic rock particles and the remainder is polyamide particles. The amount of volcanic rock masterbatch added during spinning is 10%, and the remainder is polyamide particles. The aramid 1414 / volcanic rock nylon core-spun yarn is specifically made by using one of the 40D aramid 1414 filaments as the core and one of the 35D volcanic rock filaments as the core. The preparation process of plant charcoal granules is as follows: S1. Bamboo charcoal powder, pine charcoal powder and lychee charcoal powder (the particle size D50 of bamboo charcoal powder, pine charcoal powder and lychee charcoal powder are all 200nm) are mixed in ethanol at a mass ratio of 1:0.2:0.5. After heating at 150℃ for 1.5h, the mixture is washed 4 times by centrifugation with deionized water to obtain plant charcoal precipitate. S2, sericite and ethanol solution are mixed at a ratio of 1:2 (v / v), and 12 wt% of dodecyl quaternary ammonium salt of sericite is added to the mixed solution to obtain a mixture. After stirring, 1.2 wt% of silane coupling agent KH-560 of sericite is added and mixed. The pH is adjusted to 7.0, and the mixture is stirred and heated to 70°C and maintained for 1.5 h. After cooling, the mixture is centrifuged to obtain a sericite mixture. S3. The mixture of plant charcoal precipitate and sericite (the median flake diameter D50 of sericite powder is 850 nm and the flake thickness is 150 nm) is mixed at a mass ratio of 0.3:0.5 and stirred at 60°C for 1.5 h. The mixture is then filtered through a filter membrane, the solids on the filter membrane are collected, and the plant charcoal powder is obtained after drying. The plant charcoal filament is produced by adding plant charcoal masterbatch before spinning and then polymerizing and spinning it. The plant charcoal masterbatch contains 8% plant charcoal particles and the remainder is polyamide particles. The amount of plant charcoal masterbatch added during spinning is 10%, and the remainder is polyamide particles. The aramid 1414 / vegetable charcoal nylon core-spun yarn is specifically made by using one of the 40D aramid 1414 filaments as the core and one of the 35D vegetable charcoal filaments as the core. The method for preparing lightweight firefighting gloves includes the following steps: S1, Yarn winding machine: Aramid 1414 / volcanic rock nylon core-spun yarn and aramid 1414 / vegetable charcoal nylon core-spun yarn are respectively installed on the yarn frame. The yarn passes through the tensioner and yarn breakage detection device in sequence. The tension of the yarn winding machine is controlled at 5cN. S2, Cuff Knitting: Computer program-controlled yarn guide and rib knitting of glove cuffs; S3, palm and five fingers knitting: switch to single-sided plain knit structure, feed the two types of core-spun yarns into the knitting at a mass ratio of 50:38, knit the palm and back of the hand in sequence, then knit the thumb and the other four fingers separately; control the cylinder speed at 26r / min; S4, fingertip finishing: The fingertips of all five fingers are finished with automatic loop finishing to complete the glove blank knitting; S5, Post-setting: The glove blank is heat-set at 142℃ with low tension to obtain lightweight fire gloves.

[0022] Comparative Example 2 The preparation process of volcanic rock particles is as follows: volcanic rock is ground into particles with a particle size of 550 nm, and then mixed with nano-zirconium phosphate silver-loaded antibacterial agent to obtain volcanic rock particles; the mass ratio of the nano-zirconium phosphate silver-loaded antibacterial agent to the ground particles is 1:0.1. The volcanic rock filaments are produced by adding volcanic rock masterbatch before spinning and then polymerizing and spinning them. The volcanic rock masterbatch contains 8% volcanic rock particles and the remainder is polyamide particles. The amount of volcanic rock masterbatch added during spinning is 10%, and the remainder is polyamide particles. The aramid 1414 / volcanic rock nylon core-spun yarn is specifically made by using one of the 40D aramid 1414 filaments as the core and one of the 35D volcanic rock filaments as the core. The preparation process of plant charcoal granules is as follows: S1. Bamboo charcoal powder, corn stalk charcoal powder and lychee charcoal powder (the particle size D50 of bamboo charcoal powder, pine charcoal powder and lychee charcoal powder are all 200nm) are mixed in ethanol at a mass ratio of 1:0.2:0.5. After heating at 150℃ for 1.5h, the mixture is washed 4 times by centrifugation with deionized water to obtain plant charcoal precipitate. S2, sericite and ethanol solution are mixed at a ratio of 1:2 (v / v), and 12 wt% of dodecyl quaternary ammonium salt of sericite is added to the mixed solution to obtain a mixture. After stirring, 1.2 wt% of silane coupling agent KH-560 of sericite is added and mixed. The pH is adjusted to 7.0, and the mixture is stirred and heated to 70°C and maintained for 1.5 h. After cooling, the mixture is centrifuged to obtain a sericite mixture. S3. The mixture of plant charcoal precipitate and sericite (the median flake diameter D50 of sericite powder is 850 nm and the flake thickness is 150 nm) is mixed at a mass ratio of 0.3:0.5 and stirred at 60°C for 1.5 h. The mixture is then filtered through a filter membrane, the solids on the filter membrane are collected, and the plant charcoal powder is obtained after drying. The plant charcoal filament is produced by adding plant charcoal masterbatch before spinning and then polymerizing and spinning it. The plant charcoal masterbatch contains 8% plant charcoal particles and the remainder is polyamide particles. The amount of plant charcoal masterbatch added during spinning is 10%, and the remainder is polyamide particles. The aramid 1414 / vegetable charcoal nylon core-spun yarn is specifically made by using one of the 40D aramid 1414 filaments as the core and one of the 35D vegetable charcoal filaments as the core. The method for preparing lightweight firefighting gloves includes the following steps: S1, Yarn winding machine: Aramid 1414 / volcanic rock nylon core-spun yarn and aramid 1414 / vegetable charcoal nylon core-spun yarn are respectively installed on the yarn frame. The yarn passes through the tensioner and yarn breakage detection device in sequence. The tension of the yarn winding machine is controlled at 5cN. S2, Cuff Knitting: Computer program-controlled yarn guide and rib knitting of glove cuffs; S3, palm and five fingers knitting: switch to single-sided plain knit structure, feed the two types of core-spun yarns into the knitting at a mass ratio of 50:38, knit the palm and back of the hand in sequence, then knit the thumb and the other four fingers separately; control the cylinder speed at 26r / min; S4, fingertip finishing: The fingertips of all five fingers are finished with automatic loop finishing to complete the glove blank knitting; S5, Post-setting: The glove blank is heat-set at 142℃ with low tension to obtain lightweight fire gloves.

[0023] Comparative Example 3 The method for preparing lightweight firefighting gloves includes the following steps: S1, Yarn loading: Install aramid 1414 yarn on the yarn frame, and pass the yarn through the tensioner and yarn breakage detection device in sequence. The tension of the yarn loading is controlled at 5cN. S2, Cuff Knitting: Computer program-controlled yarn guide and rib knitting of glove cuffs; S3, palm and five fingers knitting: switch to single-sided plain knit structure, feed the two types of core-spun yarns into the knitting at a mass ratio of 50:38, knit the palm and back of the hand in sequence, then knit the thumb and the other four fingers separately; control the cylinder speed at 26r / min; S4, fingertip finishing: The fingertips of all five fingers are finished with automatic loop finishing to complete the glove blank knitting; S5, Post-setting: The glove blank is heat-set at 142℃ with low tension to obtain lightweight fire gloves.

[0024] Performance testing I. The lightweight fire-fighting gloves prepared by the methods in Examples 1-3 and Comparative Examples 1-3 were tested according to GB / T 5455-2014 "Determination of vertical damage length, smoldering time and afterflame time of textiles". The test results are shown in Table 1. Table 1

[0025] As shown in Table 1, the afterflame time was 0-1 s in the examples and 1-2 s in the comparative examples. The longest afterflame time in the examples was lower than the maximum value in the comparative examples, and examples 2 and 3 achieved no afterflame. The smoldering time was 0-1 s in the examples and 2-3 s in the comparative examples. The smoldering time in the examples was shorter than that in the comparative examples. The damage length was 0-23 mm in the examples and 36-42 mm in the comparative examples. The lightweight fire-fighting gloves prepared using Examples 1-3 of the present invention exhibit shorter afterflame and smoldering times, shorter damage length caused by flames, and better flame-retardant effects than comparative examples 1-3 under vertical combustion tests.

[0026] II. The lightweight fire-fighting gloves prepared by the methods in Examples 1-3 and Comparative Examples 1-3 were tested according to GB / T3923.1 "Textiles - Tensile Properties of Fabrics - Part 1: Determination of Breaking Strength and Elongation at Break (Strip Method)" and GB24541-2022 "Hand Protection - Protective Gloves Against Mechanical Hazards". The test results are shown in Table 2. Table 2

[0027] As can be seen from Table 2, the fracture strength is as follows: Example 1: 180-205 N; Comparative Example: 168-178 N. The overall fracture strength of the examples is higher than that of the comparative examples, with Example 2 showing the best fracture strength at 205 N. The puncture force is as follows: Example 1: 156-162 N; Comparative Example: 123-156 N. The puncture performance of the examples is generally better than that of the comparative examples, with Example 2 showing the highest puncture force. Comparative Example 3 shows a puncture force of 156 N, which is the same as that of Example 1, but the puncture performance of the other comparative examples is significantly lower.

[0028] The lightweight fire gloves prepared by the present invention have higher fabric breaking strength, better overall puncture resistance, and better mechanical protection performance than the comparative sample.

[0029] III. The lightweight fire-fighting gloves prepared by the methods in Examples 1-3 and Comparative Examples 1-3 were tested according to GB / T 20944.2-2007 "Evaluation of antimicrobial properties of textiles - Part 2: Absorption method". The test strains were Staphylococcus aureus ATCC 6538 and Escherichia coli ATCC 8099. The test results are shown in Table 3. Table 3

[0030] As shown in Table 3, the inhibition rate of Staphylococcus aureus was 99.1-99.5% in the examples and 95.6-98.7% in the comparative examples. The inhibition rate of Staphylococcus aureus in the examples was higher than 99%, showing excellent antibacterial effect. The highest inhibition rate in the comparative examples was only 98.7%, and the lowest was 95.6%. Inhibition rate of Escherichia coli: 92.1-92.9% in the examples; 90.1-90.7% in the comparative examples. The overall inhibitory effect of the examples on Escherichia coli was better than that of the comparative examples.

[0031] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A lightweight firefighting glove, characterized in that, The fire gloves are woven from aramid 1414 / volcanic rock nylon core-spun yarn and aramid 1414 / vegetable charcoal nylon core-spun yarn. The aramid 1414 / volcanic rock nylon core-spun yarn is specifically constructed as follows: A 35-45D aramid 1414 filament is used as the core, and a 30-40D volcanic rock filament is used for core-spun bonding. The volcanic rock filament is polymerized and spun by adding volcanic rock masterbatch before spinning. The volcanic rock masterbatch contains 6-10% volcanic rock particles, with the remainder being polyamide particles. The amount of volcanic rock masterbatch added during spinning is 8-12%, with the remainder being polyamide particles. The preparation process of the volcanic rock particles involves grinding volcanic rock into particles with a diameter of 500-650nm, mixing them with a nano-zirconium phosphate silver-loaded antibacterial agent to obtain the volcanic rock particles. The mass ratio of the nano-zirconium phosphate silver-loaded antibacterial agent to the ground particles is 1:0.

1. The aramid 1414 / plant charcoal nylon core-spun yarn is specifically made by using one of the aramid 1414 filaments of 35-45D as the core and one of the 30-40D plant charcoal filaments as the core; the plant charcoal filaments are polymerized and spun by adding plant charcoal masterbatch before spinning, and the plant charcoal masterbatch contains 6-10% plant charcoal particles, with the remainder being polyamide particles; the amount of plant charcoal masterbatch added during spinning is 8-12%, with the remainder being polyamide particles.

2. The lightweight fire-fighting glove according to claim 1, characterized in that, The preparation process of the plant charcoal particles is as follows: S1. Bamboo charcoal powder, pine charcoal powder and lychee charcoal powder are mixed in ethanol at a mass ratio of 1:0.2:0.

5. After heating at 140-160℃ for 1-2 hours, the mixture is washed 3-5 times by centrifugation with deionized water to obtain plant charcoal precipitate. S2, mix sericite with ethanol solution at a ratio of 1:2 (v / v), add 10-15 wt% dodecyl quaternary ammonium salt of sericite to the mixture to obtain a mixture, stir, add 0.8-1.5 wt% silane coupling agent KH-560 of sericite and mix, adjust the pH to 6.0-7.5, stir and heat to 70℃ and maintain for 1-2 h, cool and centrifuge to obtain sericite mixture; S3. Mix the plant charcoal precipitate and sericite mixture at a mass ratio of 0.3:0.5, stir at 55-70℃ for 1-2 hours, filter using a filter membrane, collect the solid on the filter membrane, and dry to obtain plant charcoal powder.

3. The lightweight fire-fighting glove according to claim 2, characterized in that, The median flake diameter (D50) of the sericite powder is 500-1000 nm, and the flake thickness is 50-200 nm.

4. A lightweight fire-fighting glove according to claim 2, characterized in that, The particle size D50 of the bamboo charcoal powder, pine charcoal powder and lychee charcoal powder is 100-300nm.

5. A method for preparing the lightweight fire-fighting glove according to any one of claims 1-4, characterized in that, Includes the following steps: S1, Yarn winding machine: Aramid 1414 / volcanic rock nylon core-spun yarn and aramid 1414 / vegetable charcoal nylon core-spun yarn are respectively installed on the yarn frame. The yarn passes through the tensioner and yarn breakage detection device in sequence. The tension of the yarn winding machine is controlled at 3-6cN. S2, Cuff Knitting: Computer program-controlled yarn guide and rib knitting of glove cuffs; S3, palm and five fingers knitting: switch to single-sided plain knit structure, feed the two types of core-spun yarns into the knitting at a mass ratio of 45-52:36-40, knit the palm and back of the hand in sequence, then knit the thumb and the other four fingers separately; control the cylinder speed at 22-28r / min; S4, fingertip finishing: The fingertips of all five fingers are finished with automatic loop finishing to complete the glove blank knitting; S5, Post-setting: The glove blank is heat-set at 140-145℃ with low tension to obtain lightweight fire gloves.

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