Elastic flame-retardant antistatic arc-proof single-sided velvet fabric

Abstract

The utility model discloses an elastic flame-retardant antistatic arc-proof single-sided 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 bottom layer suede is arranged on the lower surface of the bottom layer; the fabric is formed by knitting blended yarn through a circular knitting weft knitting machine. According to the utility model, the single-sided velvet texture is selected and is different from the conventional texture, so that the single-sided velvet texture fabric with the same gram weight is thicker and more three-dimensional, is in more contact with air, can store more air, and has better warm-keeping and heat-insulating properties; the surface layer is more quickly carbonized to generate a protective layer after meeting flames and electric arcs, so that the interior of the fabric can be more protected, and the skin is prevented from being damaged.

Description

Technical Field

[0001] This utility model belongs to the field of personal safety protection technology, specifically relating to an elastic, flame-retardant, antistatic, and arc-resistant single-sided fleece fabric. Background Technology

[0002] With the continuous development of industry and technology, the requirements for fabrics are also increasing. In many fields, such as fire protection, power, and chemical industry, workers face potential dangers such as fire, electrostatic discharge, and electric arc. Traditional single-sided fleece fabrics have limitations in some aspects. For example, they may lack elasticity, restricting the wearer's freedom of movement; their flame-retardant properties may be insufficient, failing to effectively prevent the spread of fire; their antistatic ability is poor, easily accumulating static electricity and causing spark discharge; and they also have inadequate protection against electric arc.

[0003] Therefore, developing a single-sided fleece fabric with elasticity, flame retardancy, antistatic properties, and arc resistance is of great significance. It will provide better protection for workers in related fields, reduce safety risks, and improve work efficiency. Utility Model Content

[0004] To address the aforementioned technical problems, this invention provides an elastic, flame-retardant, antistatic, and arc-resistant single-sided fleece fabric, which possesses elasticity, flame retardancy, antistatic properties, and arc-resistant characteristics. This fabric not only provides a comfortable wearing experience but also ensures the safety of workers.

[0005] An elastic, flame-retardant, antistatic, and arc-resistant single-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 lower surface of the bottom layer is provided with a bottom fleece surface.

[0006] Furthermore, the fabric is knitted using four needles and seven rows of knitting in one cycle. 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 row, and the knit 1 section and the knit 2 section are knitted in the same row. The purl 1 section and the knit 1 section are arranged opposite each other vertically, and the purl 2 section and the knit 2 section are arranged opposite each other vertically.

[0007] First row: Knit 1 section with floating yarn, knit 2 sections with loop, knit 1 section with loop, knit 2 sections with floating yarn;

[0008] Second row: Knit 1 section, knit 2 sections, k ...

[0009] Third row: Knit 1 section with floating yarn, knit 2 sections with floating yarn, knit 1 section with loop, knit 2 sections with loop;

[0010] Fourth row: Knit 1 section to form a circle, knit 2 sections to form a circle, knit 1 section to form a float, knit 2 sections to form a float;

[0011] Fifth row: Knit 1 section with floating yarn, knit 2 sections with knitting needles and knit together, knit 1 section with floating yarn, knit 2 sections with knitting needles and knit together;

[0012] Sixth row: Knit 1 section to form a circle, knit 2 sections to form a float, knit 1 section to form a float, knit 2 sections to form a circle.

[0013] Furthermore, the fabric is woven from blended yarn using a circular knitting weft knitting machine.

[0014] Furthermore, the blended yarn is a blended yarn made of flame-retardant fibers, cotton fibers, and conductive fibers.

[0015] Furthermore, the blended yarn is made of 50%–60% flame-retardant fiber, 39%–47% cotton fiber, and 1%–3% conductive fiber by weight.

[0016] Furthermore, the flame-retardant fiber is flame-retardant acrylic fiber, the cotton fiber is long-staple cotton, and the conductive fiber is Belltron.

[0017] Furthermore, the yarn count of the blended yarn is 28S-36S and 10S-20S.

[0018] Furthermore, the blended yarn used in the first, second, fourth, and fifth passes has a count of 28S-36S, while the blended yarn used in the third and sixth passes has a count of 10S-20S.

[0019] Furthermore, the intermediate layer is connected to the surface layer by connecting yarn, and the intermediate layer is connected to the bottom layer by connecting yarn.

[0020] 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 10S-20S blended yarn is used to weave the bottom layer.

[0021] Furthermore, the fabric is spun using a compact Sirospun method.

[0022] Furthermore, the fabric has a weight of 300-350 g / m². 2 .

[0023] 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; and the conductive fiber has a fineness of 1 D and a fiber length of 38 mm.

[0024] Furthermore, the cylinder size of the circular knitting machine is 24-32 inches, and the needle pitch is 16-24 needles / inch.

[0025] Furthermore, after the blended yarn is woven into a three-layer fabric, it is dyed, and then the bottom surface of the bottom layer is napped.

[0026] Furthermore, the dyeing process involves acid / cationic co-bath and reactive dyeing treatments. The specific dyeing production process is as follows: batching the dyeing tank—degreasing the dyeing tank—acid / cationic co-bath—reduction cleaning—reactive dyeing—soap washing—cotton color fixing—intermediate fixing—soap washing—acidic color fixing—finished product shaping—finished product inspection.

[0027] The beneficial effects of this utility model are:

[0028] 1. This fabric has a unique and stylish surface, making it suitable for protective crew neck sweaters in autumn and winter. Its fleece structure provides excellent warmth.

[0029] 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.

[0030] 3. Structurally, this utility model selects a single-sided fleece weave, which is different from conventional weaves. Under the same weight, the single-sided fleece fabric is thicker and more three-dimensional, with more contact with air and can retain more air, giving the fabric better 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.

[0031] 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 17.16 cal under the European arc protection standard IEC-61482. Attached Figure Description

[0032] Figure 1 It features a layered structure for an elastic, flame-retardant, antistatic, and arc-resistant single-sided fleece fabric.

[0033] Figure 2 Triangular arrangement diagram for elastic, flame-retardant, antistatic, and arc-resistant single-sided fleece fabric on the machine.

[0034] Figure 3 This is a structural design diagram of an elastic, flame-retardant, anti-static, and arc-resistant single-sided fleece fabric. The symbol × indicates a loop formation point, the symbol · indicates a tucked loop formation point, and a space indicates a floating line position point. Detailed Implementation

[0035] 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.

[0036] Example 1

[0037] like Figure 1 As shown, an elastic flame-retardant, antistatic, and arc-resistant single-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 bottom layer 3 has a fleece surface on its lower surface.

[0038] The fabric is woven from blended yarn using a thread-knitting process. The blended yarn consists of 55% modified flame-retardant acrylic fiber, 43% cotton fiber, and 2% conductive fiber. The spinning method is compact Sirospun. The fabric weight is 310 g / m². 2 .

[0039] 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.

[0040] 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.

[0041] 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.

[0042] Among them, the surface yarn is composed of 55% modified flame-retardant acrylic fiber, 43% long-staple cotton, and 2% conductive fiber 32S, i.e., 32S blended yarn, and is referred to as 32S flame-retardant yarn.

[0043] Intermediate yarn: 55% modified flame retardant acrylic fiber, 43% long-staple cotton, 2% conductive fiber 32S, i.e. 32S blended yarn, denoted as 32S flame retardant yarn;

[0044] Bottom yarn: 55% modified flame retardant acrylic, 43% long-staple cotton, 2% conductive fiber 16S, i.e. 16S blended yarn, denoted as 16S flame retardant yarn.

[0045] The fabric is processed on a circular knitting weft 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 (a 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).

[0046] First row: 32S flame retardant yarn, knitting needles are not working in section 1 of the purl stitch, knitting needles are working in section 2 of the purl stitch, knitting needles are working in section 1 of the knit stitch, and knitting needles are not working in section 2 of the knit stitch.

[0047] Second row: 32S flame retardant yarn, knit in loops with the first knitting needle, knit in loops with the second knitting needle (no work, floating yarn), knit in loops with the first knitting needle, knit in loops with the second knitting needle (no work).

[0048] Third row: 16S flame retardant yarn, the first and second sections of the purl needles are not working, and the first and second sections of the knitting needles are working.

[0049] Fourth row: 32S flame retardant yarn, knitting needles 1 and 2 working, knitting needles 1 and 2 not working.

[0050] Fifth row: 32S flame retardant yarn, knitting needle 1 section is not working, knitting needle 2 sections is knitted in a loop, knitting needle 1 section is not working, knitting needle 2 sections is knitted in a loop.

[0051] Sixth row: 16S 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 works.

[0052] The resulting fabric structure is as follows Figure 3 As shown: × represents a circled point, · represents a clustered point, and spaces represent floating lines.

[0053] 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.

[0054] 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 – outsourced single-sided napping – 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. An elastic, flame-retardant, antistatic, and arc-resistant single-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 lower surface of the bottom layer is provided with a napped surface. The fabric is woven from blended yarn using a circular weft knitting machine; The blended yarn is made of flame-retardant fiber, cotton fiber, and conductive fiber.

2. The elastic flame-retardant, antistatic, and anti-arc single-sided fleece fabric according to claim 1, characterized in that, The fabric is knitted using four needles and seven rows in one cycle. 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 row, the knit 1 section and the knit 2 section are knitted in the same row, the purl 1 section and the knit 1 section are knitted vertically opposite each other, and the purl 2 section and the knit 2 section are knitted vertically opposite each other. First row: Knit 1 section with floating yarn, knit 2 sections with loop, knit 1 section with loop, knit 2 sections with floating yarn; Second row: Knit 1 section, knit 2 sections, k ... Third row: Knit 1 section with floating yarn, knit 2 sections with floating yarn, knit 1 section with loop, knit 2 sections with loop; Fourth row: Knit 1 section to form a circle, knit 2 sections to form a circle, knit 1 section to form a float, knit 2 sections to form a float; Fifth row: Knit 1 section with floating yarn, knit 2 sections with knitting needles and knit together, knit 1 section with floating yarn, knit 2 sections with knitting needles and knit together; Sixth row: Knit 1 section to form a circle, knit 2 sections to form a float, knit 1 section to form a float, knit 2 sections to form a circle.

3. The elastic flame-retardant, antistatic, and arc-resistant single-sided fleece fabric according to claim 1, characterized in that, The flame-retardant fiber is flame-retardant acrylic fiber, the cotton fiber is long-staple cotton, and the conductive fiber is Belltron; the count of the blended yarn is 28S-36S and 10S-20S.

4. The elastic flame-retardant, antistatic, and arc-resistant single-sided fleece fabric according to claim 2, characterized in that, The blended yarns used in the first, second, fourth and fifth passes have a count of 28S-36S, while the blended yarns used in the third and sixth passes have a count of 10S-20S.

5. The elastic flame-retardant, antistatic, and arc-resistant single-sided fleece fabric according to claim 1, characterized in that, The fabric is spun using a compact Sirospun method; the fabric weight is 300-350 g / m². 2 .

6. The elastic flame-retardant, antistatic, and arc-resistant single-sided fleece fabric according to claim 1, characterized in that, The circular knitting machine has a cylinder size of 24-32 inches and a needle pitch of 16-24 needles / inch.

7. The elastic flame-retardant, antistatic, and arc-resistant single-sided fleece fabric according to claim 1, characterized in that, 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 1.9D and a fiber length of 38 mm; the conductive fiber has a fineness of 1D and a fiber length of 38 mm.

Images