Highly-visible flame-retardant antistatic arc-proof double-sided polar fleece fabric

Abstract

The utility model discloses a highly visible flame-retardant antistatic arc-proof double-sided polar fleece fabric, and belongs to the technical field of individual safety protection. The fabric comprises a surface layer, a middle layer and a bottom layer, and the middle layer is respectively connected with the surface layer and the bottom layer; a surface polar fleece surface is arranged on the upper surface of the surface layer, and a bottom polar fleece surface is arranged on the lower surface of the bottom layer. Different from a single-sided fleece structure, the double-sided polar fleece fabric makes contact with skin more comfortably, the whole fabric is more fluffy, and the heat preservation effect is better.

Description

Technical Field

[0001] This utility model belongs to the field of personal safety protection technology, specifically relating to a high-visibility, flame-retardant, antistatic, and anti-arc double-sided fleece fabric. Background Technology

[0002] With the continuous advancement of industrial technology and the increasing awareness of safety, the demand for fabrics with special properties is becoming increasingly urgent. In certain working environments, such as the power industry and chemical industry, workers face a high risk of fire and electric arc. Simultaneously, the accumulation of static electricity can also pose a danger. While traditional double-sided fleece fabrics offer some warmth and comfort, they have significant shortcomings in terms of visibility, flame retardancy, antistatic properties, and arc protection. Regarding visibility, they cannot meet the requirements for clear identification of workers in low-light or complex environments. The lack of flame retardancy means that the fabric cannot effectively prevent the spread of fire in the event of a fire, increasing the risk of personal injury and property damage. Insufficient antistatic properties lead to static electricity accumulation, which may cause spark discharge, resulting in fire or other safety hazards. The lack of arc protection fails to provide adequate protection for workers.

[0003] To meet these needs, the development of a highly visible, flame-retardant, antistatic, and arc-resistant double-sided fleece fabric has become an urgent priority. While some attempts have been made in related technical fields to improve fabric performance, several issues remain. For example, certain flame-retardant treatments may affect other fabric properties, such as comfort and durability. Antistatic treatments may not be long-lasting, and performance may degrade after multiple washes. Therefore, an innovative technology is needed to address these problems, providing a double-sided fleece fabric that combines high visibility, good flame retardancy, excellent antistatic properties, and reliable arc-resistant capabilities. The development of this patented technology will provide better safety guarantees for workers in related fields, improving work safety and efficiency. Utility Model Content

[0004] To solve the above-mentioned technical problems, this invention provides a high-visibility, flame-retardant, antistatic, and arc-resistant double-sided fleece fabric.

[0005] A high-visibility, flame-retardant, antistatic, and arc-resistant double-sided fleece fabric, comprising a top layer, a middle layer, and a bottom layer, wherein the middle layer is connected to the top layer and the bottom layer respectively; the upper surface of the top layer is provided with a top fleece surface, and the lower surface of the bottom layer is provided with a bottom fleece surface.

[0006] Furthermore, the fabric is knitted using four needles in an eight-way loop. The four needles include a purl 1 section, a purl 2 section, a knit 1 section, and a knit 2 section. The purl 1 section and the purl 2 section are knitted in the same direction, and the knit 1 section and the knit 2 section are knitted in the same direction. The purl 1 section and the knit 1 section are positioned opposite each other vertically, and the purl 2 section and the knit 2 section are positioned opposite each other vertically.

[0007] First row: Knit 1 section to form a circle, knit 2 sections to form a floating loop, knit 1 section to form a floating loop, knit 2 sections to form a circle;

[0008] Second row: Knit 1 section to form a circle, knit 2 sections to form a floating loop, knit 1 section to form a floating loop, knit 2 sections to form a circle;

[0009] Third row: Knit 1 section with needles to form a circle, knit 2 sections with needles to form a circle, knit 1 section with needles to form a floating needle, knit 2 sections with needles to form a floating needle;

[0010] Fourth row: Knit 1 section, knit 2 sections, k ...

[0011] Fifth row: Knit 1 section with floating yarn, knit 2 sections with knitting needles in a loop, knit 1 section with knitting needles in a loop, knit 2 sections with floating yarn;

[0012] Sixth row: Knit 1 section with floating yarn, knit 2 sections with knitting needles in a loop, knit 1 section with knitting needles in a loop, knit 2 sections with floating yarn;

[0013] Seventh row: Knit 1 section with floating yarn, knit 2 sections with floating yarn, knit 1 section with knit stitches, knit 2 sections with knit stitches to form a loop;

[0014] Eighth row: Knit 1 section with floating yarn, knit 2 sections with floating yarn, knit 1 section with knit stitches, knit 2 sections with knit stitches to form a loop.

[0015] Furthermore, the fabric is woven from blended yarn using a circular knitting weft knitting machine.

[0016] Furthermore, the blended yarn is a blended yarn made of flame-retardant fibers, cotton fibers, nylon, and conductive fibers.

[0017] Furthermore, the blended yarn is made of 40%–60% flame-retardant fiber, 30%–40% cotton fiber, 5%–17% nylon, and 1%–3% conductive fiber by weight percentage.

[0018] Furthermore, the flame-retardant fiber is flame-retardant acrylic fiber, the cotton fiber is long-staple cotton, the nylon is nylon 66, and the conductive fiber is Belltron.

[0019] Furthermore, the yarn count of the blended yarn is 28S-36S and 5S-15S.

[0020] Furthermore, the blended yarns used in the first, third, fourth, sixth, and seventh passes have a count of 28S-36S, while the blended yarns used in the second, fifth, and eighth passes have a count of 10S-20S.

[0021] Furthermore, the intermediate layer and the outer layer are connected by connecting yarn.

[0022] Furthermore, the 28S-36S blended yarn is used to weave the surface and intermediate layers, the connecting yarn is a 28S-36S blended yarn, and the 5S-15S blended yarn is used to weave the bottom layer.

[0023] Furthermore, the fabric is spun using a compact Sirospun method.

[0024] Furthermore, the fabric has a weight of 280-350 g / m². 2 .

[0025] Furthermore, the flame-retardant fiber has a fineness of 1.33 DTEX and a fiber length of 38 mm; the cotton fiber has a fineness of 1.9 D and a fiber length of 38 mm; the nylon fiber has a fineness of 1.5 D and a fiber length of 38 mm; and the conductive fiber has a fineness of 1 D and a fiber length of 38 mm.

[0026] Furthermore, the fabric is woven from blended yarn using a circular knitting machine with a cylinder size of 26-34 inches and a needle pitch of 16-24 needles / inch.

[0027] Furthermore, after the blended yarn is woven into a three-layer fabric, it is dyed with fluorescent dyes, and then the upper surface of the outer layer and the lower surface of the inner layer are napped and tufted.

[0028] Furthermore, the dyeing process involves acid / cationic co-bath and reactive dyeing treatment to dye the fabric a fluorescent color.

[0029] The beneficial effects of this utility model are:

[0030] 1. This fabric has a unique and stylish surface, making it suitable for protective fleece outerwear products in autumn and winter. Its fleece structure provides excellent warmth.

[0031] 2. Outstanding flame-retardant and antistatic properties: Because it uses permanently flame-retardant materials, washing will not affect the fabric's flame-retardant and antistatic properties. The main components of this fabric are flame-retardant acrylic fiber and long-staple cotton, with conductive fibers added during the spinning process. The flame-retardant acrylic fiber has a limiting oxygen index of 32%, combined with the natural cellulose fiber long-staple cotton, ensuring the fabric has excellent flame-retardant and arc-resistant properties. The addition of a small amount of conductive fibers during the spinning process gives the fabric a certain degree of antistatic capability.

[0032] 3. Structurally, this utility model selects a double-sided fleece structure, which is different from conventional structures. For the same weight, single-sided fleece fabric is thicker and more three-dimensional, with more contact with air and can retain more air, giving the fabric better warmth and heat insulation performance. The surface layer carbonizes faster when exposed to flames or electric arcs to form a protective layer, which can better protect the inside of the fabric and the skin from damage. Unlike single-sided fleece structures, double-sided fleece fabric is more comfortable to the skin, fluffier overall, and has a better warmth retention effect.

[0033] 4. This fabric is flame retardant and has good antistatic properties. It has passed the tests of European flame retardant standards EN11612, EN14116 and EN11611, and has a calorific value of up to 20.67 cal under the European arc protection standard IEC-61482.

[0034] 5. Nylon 66 increases the strength of yarns and fabrics, improving the physical properties of fabrics, such as pilling resistance and bursting strength. Attached Figure Description

[0035] Figure 1 It features a layered structure for a highly visible, flame-retardant, antistatic, and arc-resistant double-sided fleece fabric.

[0036] Figure 2 This is a triangular arrangement diagram for the fabric of a highly visible, flame-retardant, anti-static, and arc-resistant double-sided fleece.

[0037] Figure 3 This is a structural design diagram of a high-visibility, flame-retardant, anti-static, and arc-resistant double-sided fleece fabric. The symbol × indicates the point where loops form, the symbol · indicates the point where loops are gathered, and spaces indicate the points where floating lines are positioned. Detailed Implementation

[0038] The following non-limiting embodiments are intended to enable those skilled in the art to fully understand the present invention, but do not limit the present invention in any way.

[0039] Example 1

[0040] like Figure 1 As shown, a high-visibility, flame-retardant, antistatic, and arc-resistant double-sided fleece fabric includes a top layer 1, a middle layer 2, and a bottom layer 3. The middle layer 2 connects the top layer 1 and the bottom layer 3 respectively. The upper surface of the top layer 1 is provided with a top fleece surface, and the lower surface of the bottom layer 3 is provided with a bottom fleece surface. The fabric is manufactured using a knitting process.

[0041] The fabric is woven from a blended yarn, which consists of 55% modified flame-retardant acrylic fiber, 33% cotton fiber, 10% nylon, and 2% conductive fiber. The spinning method is compact Sirospun. The fabric weight is 310 g / m². 2 .

[0042] The modified flame-retardant acrylic fiber (high-resistance acrylic staple fiber from Hangzhou Shenghong Textile Technology Co., Ltd.) in the blended yarn of the fabric has a fineness of 1.33 DTEX, a fiber length of 38 mm, and a limiting oxygen index of 32%. It is a flame-retardant fiber that will not burn immediately upon contact with a flame and will stop burning immediately after being removed from the flame and is not prone to afterburning.

[0043] The cotton fiber in the blended yarn of the fabric is long-staple cotton, with a fiber fineness of 1.9D and a fiber length of 38mm. Long-staple cotton is a natural cellulose fiber. The addition of modified flame-retardant acrylic fiber and cellulose fiber in a certain proportion can optimize the flame retardancy of the fabric. The addition of long-staple cotton enhances the flame retardant performance of the fabric, and the good skin-friendliness of natural cellulose fiber makes the fabric more comfortable.

[0044] The nylon in the blended yarn of the fabric is nylon 66, with a fiber fineness of 1.5D and a fiber length of 38mm. Nylon has good abrasion resistance and resilience. Adding this component to the yarn increases the strength of the yarn, resulting in a more crisp, abrasion-resistant fabric with extended service life and sustainability.

[0045] The conductive fiber in the blended yarn of the fabric is carbon-type Belltron, with a fiber fineness of 1D and a fiber length of 38mm. Its parent polymer is polyester, with a circular cross-section and an outer ring of carbon-type conductive particles.

[0046] The fabric is a three-layer fabric, using two types of yarn:

[0047] Yarn 1: 55% modified flame retardant acrylic, 33% long-staple cotton, 10% nylon, 2% conductive fiber 32S, i.e. 32S blended yarn, denoted as 32S flame retardant yarn.

[0048] Yarn 2: 55% modified flame retardant acrylic, 33% long-staple cotton, 10% nylon, 2% conductive fiber 10S, i.e. 10S blended yarn, denoted as 10S flame retardant yarn.

[0049] The fabric is processed on a circular weft knitting machine with a tube size of 30 inches and a stitch length (distance between two knit or purl needles) of 20 stitches / inch. The specific processing steps for the fabric are as follows: Two sections of knit needles and two sections of purl needles are selected. Based on the fabric structure requirements, the knit needles are arranged in a 1,2 pattern, and the purl needles in a 1,2 pattern (1,2 pattern is a two-needle cycle, i.e., 1 stitch followed by 2 stitches, 2 stitches followed by 1 stitch). The following needles are not in operation (float yarn) and are in operation (loop formation).

[0050] First row: 32S flame retardant yarn, knitting needle 1 section working, knitting needle 2 section not working, knitting needle 1 section not working, knitting needle 2 section tucked together.

[0051] Second row: 10S flame retardant yarn, knitting needle 1 section works, knitting needle 2 section does not work, knitting needle 1 section does not work, knitting needle 2 section is knitted in a loop.

[0052] Third row: 32S flame retardant yarn, knitted in a loop with the first section of purl needles, the second section of purl needles is active, and the first and second sections of knitting needles are not active.

[0053] Fourth row: 32S flame retardant yarn, knitting in a loop with the first section of purl needles, working with the second section of purl needles, and not working with the first and second sections of knit needles.

[0054] Fifth row: 10S flame retardant yarn, the first section of the purl needle is not working, the second section of the purl needle is knitted in a loop, the first section of the knit needle is working, and the second section of the knit needle is not working.

[0055] Sixth row: 32S flame retardant yarn, the first section of the purl needle is not working, the second section of the purl needle is knitted in a loop, the first section of the knit needle is working, and the second section of the knit needle is not working.

[0056] Seventh row: 32S flame retardant yarn, the first and second knitting needles are not working, the first knitting needle is knitted in a loop, and the second knitting needle is working.

[0057] Eighth row: 10S flame retardant yarn, the first and second knitting needles are not working, the first knitting needle is knitted in a loop, and the second knitting needle is working.

[0058] The resulting fabric structure is as follows Figure 3 As shown: × represents a circled point, · represents a clustered point, and spaces represent floating lines.

[0059] The first row corresponds to two working stitches in the knitting pattern; the second row corresponds to one working stitch in the knitting pattern; the third row corresponds to two working stitches in the purling pattern; and the fourth row corresponds to one working stitch in the purling pattern.

[0060] The blended yarn is woven into a three-layer fabric using the above method. Further processing is required, and the process flow is as follows: batching – loading – degreasing – acid / cationic co-bath – reduction cleaning – reactive dyeing – soaping – cotton color fixing – intermediate fixing – soaping – acid color fixing – wet friction treatment – ​​finished product setting – finished product inspection – outer layer napping and tumbling – soaping – drying and setting; among which, after soaping, a cooling water wash is performed until the water is clear; the setting temperature for color fixing is controlled at around 90 degrees Celsius.

Claims

1. A high-visibility, flame-retardant, antistatic, and arc-resistant double-sided fleece fabric, characterized in that, The fabric includes a top layer, a middle layer, and a bottom layer, with the middle layer connected to both the top layer and the bottom layer. The upper surface of the top layer is provided with a top fleece surface, and the lower surface of the bottom layer is provided with a bottom fleece surface. The fabric is knitted using four needles in an eight-way loop. The four needles include a purl 1 section, a purl 2 section, a knit 1 section, and a knit 2 section. The purl 1 section and the purl 2 section are knitted in the same direction, and the knit 1 section and the knit 2 section are knitted in the same direction. The purl 1 section and the knit 1 section are positioned opposite each other vertically, and the purl 2 section and the knit 2 section are positioned opposite each other vertically. First row: Knit 1 section to form a circle, knit 2 sections to form a floating loop, knit 1 section to form a floating loop, knit 2 sections to form a circle; Second row: Knit 1 section to form a circle, knit 2 sections to form a floating loop, knit 1 section to form a floating loop, knit 2 sections to form a circle; Third row: Knit 1 section with needles to form a circle, knit 2 sections with needles to form a circle, knit 1 section with needles to form a floating needle, knit 2 sections with needles to form a floating needle; Fourth row: Knit 1 section, knit 2 sections, k ... Fifth row: Knit 1 section with floating yarn, knit 2 sections with knitting needles in a loop, knit 1 section with knitting needles in a loop, knit 2 sections with floating yarn; Sixth row: Knit 1 section with floating yarn, knit 2 sections with knitting needles in a loop, knit 1 section with knitting needles in a loop, knit 2 sections with floating yarn; Seventh row: Knit 1 section with floating yarn, knit 2 sections with floating yarn, knit 1 section with knit stitches, knit 2 sections with knit stitches to form a loop; Eighth row: Knit 1 section with floating yarn, knit 2 sections with floating yarn, knit 1 section with knit stitches, knit 2 sections with knit stitches to form a loop.

2. The high-visibility, flame-retardant, antistatic, and arc-resistant double-sided fleece fabric according to claim 1, characterized in that, The fabric is made of blended yarn woven using a circular weft knitting machine.

3. The high-visibility, flame-retardant, antistatic, and arc-resistant double-sided fleece fabric according to claim 1, characterized in that, The blended yarns used in the first, third, fourth, sixth, and seventh passes have a count of 28S-36S, while the blended yarns used in the second, fifth, and eighth passes have a count of 10S-20S.

4. The high-visibility, flame-retardant, antistatic, and arc-resistant double-sided fleece fabric according to claim 1, characterized in that, The fabric is spun using a compact Sirospun method; the fabric weight is 280-350 g / m². 2 .

5. The high-visibility, flame-retardant, antistatic, and arc-resistant double-sided fleece fabric according to claim 2, characterized in that, The circular knitting machine has a cylinder size of 26-34 inches and a needle pitch of 16-24 needles / inch.

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