Anti-pilling thermal fabric

Abstract

The utility model discloses an anti -pilling heat -preserving fabric, including the base layer, heat -preserving intermediate layer and anti -pilling surface layer that set gradually from inside to outside along the thickness direction, three are through the 28th connection yarn interlaced fixed as a whole through the circulation setting. Through 28th warp and weft yarn " integration interweave " design, replace traditional suture connection, base layer, heat -preserving intermediate layer, anti -pilling surface layer form the compact whole structure, can effectively avoid interlayer delamination, the square grid aperture of anti -pilling surface layer guarantees ventilation, and can reduce fiber exposure, cooperate specific braiding structure and reduce the probability of producing fuzz ball, the fluffy layer of heat -preserving intermediate layer can form stable air sandwich, and the heat transfer is blocked, and the heat -preserving effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of textile fabric technology, and in particular to an anti-pilling and heat-insulating fabric. Background Technology

[0002] Thermal fabrics are a core category of winter textile products. As consumers' demands for wearing experience increase, "anti-pilling" and "high insulation" have become core requirements. Currently, thermal fabrics on the market have obvious shortcomings: most thermal fabrics rely on a fluffy pile layer (such as acrylic fleece or ordinary polyester fleece) to achieve insulation, but the pile fibers are prone to breakage and forming fuzz after friction and washing, which not only affects the appearance, but also causes the pile structure to loosen due to the shedding of fuzz, thus reducing the insulation effect; while some anti-pilling fabrics achieve anti-pilling function through high-twist yarns or surface coatings, they have problems such as stiff feel and poor breathability, and the coating is prone to peeling off after long-term use, resulting in a significant decrease in anti-pilling effect.

[0003] Existing technology, such as the multifunctional moisture-wicking and heat-retaining fleece fabric disclosed in patent application number CN202421743790.8, includes a polyester fabric layer, beneath which is an ultra-fine hollow fiber fabric layer, and beneath which is a polyester composite fabric layer. A fleece layer is connected to the upper side of the polyester fabric layer and the lower side of the polyester composite fabric layer. This technical solution, through its unique "sandwich" structure, demonstrates superior comfort and practicality. The fleece layer utilizes polyester, graphene fibers, and far-infrared absorbers to effectively achieve moisture wicking and heat retention, keeping the user dry while providing warmth. The ultra-fine hollow polyester fiber weave in the middle layer enhances the heat retention effect and further strengthens the fabric structure. Overall, this fabric integrates warmth, sweat wicking, and heat retention, bringing users an ultimate comfort experience.

[0004] The aforementioned structures, often using simple stitching to connect multiple layers of fabric (such as "outer layer + insulation layer + base layer"), suffer from poor interlayer adhesion. After repeated wear or washing, delamination and displacement easily occur, leading to instability in the interlayer air gaps and further weakening the insulation performance. Some fabrics also lack down-proof and edge-reinforced designs, making them prone to problems such as fleece protrusion and edge unraveling during use, shortening the product's lifespan. Therefore, there is an urgent need for a fabric that offers structural stability, anti-pilling properties, excellent insulation, and basic durability. Utility Model Content

[0005] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an anti-pilling thermal insulation fabric that improves anti-pilling properties, thermal insulation, and structural stability through an integrated interwoven structure and layered functional design.

[0006] According to a first aspect of the present invention, an anti-pilling thermal insulation fabric includes a base layer, a thermal insulation intermediate layer, and an anti-pilling surface layer arranged sequentially from the inside to the outside along the thickness direction. These three layers are fixed together by 28 interconnecting yarns arranged in a circular pattern. The base layer is woven from yarns numbered 1, 5, 9, 13, 17, 21, 25, and 28. The thermal insulation intermediate layer is woven from yarns numbered 3, 7, 11, 15, 19, 23, and 26 to form a fluffy fleece layer. The anti-pilling surface layer is woven from yarns numbered 2, 4, 6, 8, 10, 12, 14, 16, 18, and 28. The 0, 22, 24, and 27 yarns are interwoven; among the 28 yarns, yarns 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 26, 27, and 28 are warp yarns, and yarns 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, and 24 are weft yarns. The warp and weft yarns interweave to form nodes at the junctions of each layer, with a spacing of 2-3 mm between each node. The warp and weft yarns on the anti-pilling surface form a grid of 1 mm-1.5 mm square holes.

[0007] The anti-pilling insulation fabric according to the embodiments of this utility model has at least the following beneficial effects: the "integrated interweaving" design of 28 warp and weft yarns replaces the traditional sewing connection, and the base layer, the insulation middle layer, and the anti-pilling surface layer form a tight overall structure, which can effectively avoid interlayer delamination; the square pores of the anti-pilling surface layer ensure breathability and reduce fiber exposure, and the specific weaving structure reduces the probability of pilling; the fluffy fleece layer of the insulation middle layer can form a stable air interlayer, block heat transfer, and improve the insulation effect.

[0008] According to some embodiments of this utility model, the knitting structure of yarns 1, 5, 9, 13, 17, 21, and 25 is that the upper needle floats, the upper needle forms a loop, the lower needle floats, and the lower needle forms a loop, while the knitting structure of yarn 28 is that the upper needle floats, the lower needle floats, the upper needle forms a loop, and the lower needle forms a loop.

[0009] According to some embodiments of this utility model, the knitting structure of yarns 3, 7, 11, 15, 19, and 23 is all up-needle loop, up-needle float, down-needle loop, down-needle float, and down-needle float, while the knitting structure of yarn 26 is up-needle float, up-needle loop, down-needle loop, and down-needle float.

[0010] According to some embodiments of this utility model, the knitting structure of yarns 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, and 24 is that the upper needle forms a loop, the lower needle forms a float, the upper needle forms a float, and the lower needle forms a loop; the knitting structure of yarn 27 is that the upper needle forms a float, the lower needle forms a loop, the upper needle forms a loop, and the lower needle forms a float.

[0011] According to some embodiments of this utility model, the anti-pilling insulation fabric further includes a downproof layer, which is connected between the base layer and the insulation intermediate layer, and is woven from the 29th and 30th yarns; the 29th yarn weaving structure is a loop of purl stitches, a loop of knit stitches, a float of purl stitches, and a float of knit stitches, and the 30th yarn weaving structure is a loop of knit stitches, a loop of purl stitches, a float of knit stitches, and a float of purl stitches; the downproof layer yarn is woven with the base layer through the extension section of the 28th yarn, and every 4 nodes located on the base layer surround and connect to 1 downproof layer node.

[0012] According to some embodiments of the present invention, the downproof layer is uniformly distributed with breathable micropores penetrating its upper and lower surfaces. The breathable micropores are distributed in a regular array on the downproof layer, and the edges of each breathable micropore are heat-pressed for edge finishing.

[0013] According to some embodiments of this utility model, the anti-pilling thermal insulation fabric further includes an edge reinforcement strip along the four edges of the fabric. The edge reinforcement strip is woven from the 31st and 32nd yarns. The 31st yarn weaving structure is loop stitch, loop stitch, loop stitch, loop stitch, and loop stitch. The 32nd yarn weaving structure is float stitch, loop stitch, loop stitch, and float stitch. The reinforcement strip is 1.5-2cm wide and is interwoven with the edges of each layer by double-thread overlock stitch.

[0014] According to some embodiments of this utility model, at the intersection of the double-line locking edges of the edge reinforcement strip and the base layer, the thermal insulation intermediate layer, and the anti-pilling surface layer, a number of locking coils are formed within each centimeter of length; the two ends of the edge reinforcement strip are interwoven and connected by an overlapping method, and the locking coil density at the overlapping point is greater than the locking coil density at the non-overlapping point.

[0015] According to some embodiments of this utility model, the 1st, 5th, 9th, 13th, 17th, 21st, 25th, and 28th warp yarns of the base layer are polyester yarns, the 3rd, 7th, 11th, 15th, 19th, 23rd, and 26th warp yarns of the thermal insulation intermediate layer are polypropylene yarns, and the 2nd, 4th, 6th, 8th, 10th, 12th, 14th, 16th, 18th, 20th, 22nd, 24th, and 27th yarns of the anti-pilling surface layer are modified polyester yarns.

[0016] According to some embodiments of the present invention, in the fluffy fleece layer of the heat-insulating intermediate layer, when the 3rd, 7th, 11th, 15th, 19th, and 23rd yarns are woven, a coiling unit is set at least once every other coiling unit. The coil height of the coiling unit is greater than the coil height of the coiling unit, and the coil height of the 26th yarn is the same as the coil height of the coiling unit.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0019] Figure 1 This is a partial structural schematic diagram of the anti-pilling thermal insulation fabric according to an embodiment of the present utility model.

[0020] Figure 2 This is a triangular diagram of the weaving structure of the anti-pilling thermal insulation fabric according to an embodiment of the present invention.

[0021] 100, base layer; 200, insulation intermediate layer; 300, anti-pilling surface layer; 400, downproof layer; "-" represents float, "∨" represents knitting in a loop, "∧" represents purl stitch in a loop, "∩" represents purl stitch in a cluster. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0023] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0025] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0026] refer to Figure 1 as well as Figure 2As shown, the anti-pilling insulation fabric according to an embodiment of this utility model includes a base layer 100, an insulation intermediate layer 200, and an anti-pilling surface layer 300 arranged sequentially from the inside to the outside along the thickness direction. These three layers are fixed together by 28 interconnecting yarns arranged in a circular pattern. The base layer 100 is woven from yarns numbered 1, 5, 9, 13, 17, 21, 25, and 28. The insulation intermediate layer 200 is woven from yarns numbered 3, 7, 11, 15, 19, 23, and 26 to form a fluffy fleece layer. The anti-pilling surface layer 300 is woven from yarns numbered 2, 4, 6, 8, 10, 12, and 14. Yarns 16, 18, 20, 22, 24, and 27 are interwoven; among the 28 yarns, yarns 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 26, 27, and 28 are warp yarns, and yarns 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, and 24 are weft yarns. The warp and weft yarns interweave to form nodes at the junctions of each layer, with a spacing of 2-3 mm between each node. The anti-pilling surface layer 300 forms square pores with a side length of 1 mm-1.5 mm between the warp and weft yarns.

[0027] In practical use, the "integrated interweaving" design of 28 warp and weft yarns replaces the traditional stitching connection. The base layer 100, the insulation middle layer 200, and the anti-pilling surface layer 300 form a tight overall structure, which can effectively avoid delamination between layers. The square pores of the anti-pilling surface layer 300 ensure air permeability while reducing fiber exposure, and the specific weaving structure reduces the probability of pilling. The fluffy fleece layer of the insulation middle layer 200 can form a stable air gap, blocking heat transfer and improving the insulation effect.

[0028] In some specific embodiments of this utility model, it may also have the following additional technical features: the knitting structure of the 1st, 5th, 9th, 13th, 17th, 21st, and 25th yarns is characterized by floating yarn on the upper needle, looping yarn on the upper needle, floating yarn on the lower needle, and looping yarn on the lower needle; the knitting structure of the 28th yarn is characterized by floating yarn on the upper needle, floating yarn on the lower needle, looping yarn on the upper needle, and looping yarn on the lower needle. This knitting structure can balance the strength and elasticity of the base layer 100, providing stable support for the overall fabric, while preventing the base layer 100 from being too thick and affecting wearing comfort.

[0029] In some specific embodiments of this utility model, it may also have the following additional technical features: the weaving structure of the 3rd, 7th, 11th, 15th, 19th, and 23rd yarns is a combination of looped upper needles, floating upper needles, gathered lower needles, and floating lower needles; the weaving structure of the 26th yarn is a combination of floating upper needles, looped upper needles, looped lower needles, and floating lower needles. The gathered structure can increase the bulkiness of the insulation intermediate layer 200, expand the air gap between the yarns, and further improve the insulation performance. Furthermore, the plain weave structure of the 26th yarn can enhance the adhesion between the insulation intermediate layer 200 and the base layer 100 and the anti-pilling surface layer 300.

[0030] In some specific embodiments of this utility model, it may also have the following additional technical features: the knitting structure of the 2nd, 4th, 6th, 8th, 10th, 12th, 14th, 16th, 18th, 20th, 22nd, and 24th yarns is a combination of loop formation, float stitch, loop formation, and tuck stitch; the knitting structure of the 27th yarn is a combination of float stitch, loop formation, loop formation, and float stitch. This structure, through the combination of "loop formation + tuck stitch + float stitch," creates a tight and porous texture in the anti-pilling surface layer 300, reducing fiber slippage. Simultaneously, the square pores accelerate the expulsion of moisture from the fabric, improving dryness when worn.

[0031] In some specific embodiments of this utility model, it may also have the following additional technical features: the anti-pilling insulation fabric further includes a downproof layer 400, which is connected between the base layer 100 and the insulation intermediate layer 200, and is woven from the 29th and 30th yarns; the 29th yarn weaving structure is a loop-knitting pattern, a loop-knitting pattern, a float-knitting pattern, and a float-knitting pattern; the 30th yarn weaving structure is a loop-knitting pattern, a loop-knitting pattern, a float-knitting pattern, and a float-knitting pattern; the downproof layer 400 yarn is woven with the base layer 100 through the extension section of the 28th yarn, and every four nodes located on the base layer 100 enclose and connect one downproof layer 400 node. The downproof layer 400 can prevent the down fibers of the insulation intermediate layer 200 from emerging, avoiding down fiber loss that would lead to a decrease in insulation performance, and the connection through the extension section of the 28th yarn ensures the structural uniformity between the downproof layer 400 and the base layer 100.

[0032] In some specific embodiments of this utility model, it may also have the following additional technical features: breathable micropores (not shown in the figure) are evenly distributed on the downproof layer 400, penetrating its upper and lower surfaces. The breathable micropores are regularly arrayed on the downproof layer 400, and the edges of each breathable micropore are heat-pressed for finishing. The breathable micropores can ensure the overall breathability of the fabric, avoiding a stuffy feeling when the base layer 100 comes into contact with the skin. The heat-pressing edge finishing can prevent the yarn at the edges of the micropores from unraveling.

[0033] In some specific embodiments of this utility model, it may also have the following additional technical features: the anti-pilling insulation fabric further includes edge reinforcement strips (not shown in the figure) arranged along the four edges of the fabric. The edge reinforcement strips are woven from the 31st and 32nd yarns; the 31st yarn weaving structure is knitted loop, knitted loop, knitted loop, knitted loop; the 32nd yarn weaving structure is knitted float, knitted loop, knitted loop, knitted float; the reinforcement strip is 1.5-2cm wide and is interwoven with the edges of each layer through double-thread overlock stitching. The edge reinforcement strips can enhance the abrasion resistance of the fabric edges, prevent edge unraveling during use, and extend the product's service life.

[0034] In some specific embodiments of this utility model, it may also have the following additional technical features: at the double-line overlock stitching intersection of the edge reinforcement strip and the edges of the base layer 100, the thermal insulation intermediate layer 200, and the anti-pilling surface layer 300, a number of overlock stitching coils are formed within each centimeter of length; the two ends of the edge reinforcement strip are interwoven and connected by an overlapping method, and the density of the overlock stitching coils at the overlapping point is greater than the density of the overlock stitching coils at the non-overlapping point. A reasonable number of overlock stitching coils ensures the connection strength between the reinforcement strip and each layer, and the denser design at the overlapping point prevents the ends of the reinforcement strip from detaching, further improving edge durability.

[0035] In some specific embodiments of this utility model, it may also have the following additional technical features: the 1st, 5th, 9th, 13th, 17th, 21st, 25th, and 28th warp yarns of the base layer 100 are polyester yarns; the 3rd, 7th, 11th, 15th, 19th, 23rd, and 26th warp yarns of the insulation intermediate layer 200 are polypropylene yarns; and the 2nd, 4th, 6th, 8th, 10th, 12th, 14th, 16th, 18th, 20th, 22nd, 24th, and 27th yarns of the anti-pilling surface layer 300 are modified polyester yarns. The polyester yarns ensure the strength of the base layer 100, the non-absorbent properties of the polypropylene yarns prevent the insulation of the insulation intermediate layer 200 from decreasing after moisture absorption, and the modified polyester yarns improve the abrasion resistance of the anti-pilling surface layer 300.

[0036] In some specific embodiments of this utility model, it may also have the following additional technical features: in the fluffy fleece layer of the heat-insulating intermediate layer 200, when the 3rd, 7th, 11th, 15th, 19th and 23rd yarns are woven, a coiling unit is set at every interval of at least one coiling unit, the coil height of the coiling unit is greater than the coil height of the coiling unit, and the coil height of the 26th yarn is the same as the coil height of the coiling unit.

[0037] refer to Figure 2 Base layer 100 (1 / 5 / 9 / 13 / 17 / 21 / 25 / 28): The warp yarns cycle in a "-→∨→-→∧" pattern. Through the alternation of loops formed by the upper and lower needles, the strength and elasticity of base layer 100 are balanced. The "-→∨→-→∧" structure of the 28-way yarns strengthens the connection between base layer 100 and downproof layer 400.

[0038] Insulation intermediate layer 200 (3 / 7 / 11 / 15 / 19 / 23 / 26): 3 / 7 / 11 warp yarns “∨→-→∩→-” with tucking loops to expand the air gaps in the pile layer; 26 yarns “-→∨→∧→-” without tucking loops to enhance adhesion to the base layer 100 / anti-pilling surface layer 300;

[0039] Anti-pilling surface layer 300 (2 / 4 / 6 / 8 / 10 / 12 / 14 / 16 / 18 / 20 / 22 / 24 / 27): Weft yarns “∨→-→∩→-” form a grid of holes through the looping of the upper needle and the gathering of the lower needle, and the 27 warp yarns “-→∨→∧→-” optimize the edge adhesion of the surface layer;

[0040] Downproof layer 400 (29 / 30 lanes): The symmetrical structure of “∨→∧→-→-” and “∧→∨→-→-” ensures tight downproofing while allowing for breathability;

[0041] Edge reinforcement strip (31 / 32): 31 "∨→∨→∧→∧" fully circled to enhance strength, 32 "-→∨→∧→-" balances reinforcement and flexibility.

[0042] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An anti-pilling thermal fabric, characterized by, The structure comprises a base layer (100), an insulating intermediate layer (200), and an anti-pilling surface layer (300) arranged sequentially from the inside to the outside along the thickness direction. These three layers are fixed together by 28 interconnecting yarns arranged in a circular pattern. The base layer (100) is woven from yarns 1, 5, 9, 13, 17, 21, 25, and 28. The insulating intermediate layer (200) is woven from yarns 3, 7, 11, 15, 19, 23, and 26 to form a fluffy layer. The anti-pilling surface layer (300) is woven from yarns 2, 4, 6, 8, 10, 12, 14, 16, 18, and 29. The 0, 22, 24, and 27 yarns are interwoven; among the 28 yarns, the 1st, 3rd, 5th, 7th, 9th, 11th, 13th, 15th, 17th, 19th, 21st, 23rd, 25th, 26th, 27th, and 28th yarns are warp yarns, and the 2nd, 4th, 6th, 8th, 10th, 12th, 14th, 16th, 18th, 20th, 22nd, and 24th yarns are weft yarns. The warp yarns and the weft yarns interweave to form nodes at the junctions of each layer, and the spacing between each node is 2-3mm. The warp and weft yarns of the anti-pilling surface layer (300) form a grid of 1mm-1.5mm square pores.

2. The anti-pilling thermal fabric of claim 1, wherein, The knitting structure of yarns 1, 5, 9, 13, 17, 21, and 25 is: purl needle floating, purl needle loop, purl needle floating, purl needle loop. The knitting structure of yarn 28 is: purl needle floating, purl needle floating, purl needle loop, purl needle loop.

3. The anti-pilling thermal fabric of claim 1, wherein, The knitting structure of yarns 3, 7, 11, 15, 19, and 23 is knitting with purl stitches in loops, purl stitches in floats, knit stitches in clusters, and knit stitches in floats. The knitting structure of yarn 26 is knitting with purl stitches in loops, purl stitches in loops, and knit stitches in floats.

4. The anti-pilling thermal fabric of claim 1, wherein, The knitting structure of yarns 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, and 24 is knitting with loops, loose threads, loops, and knitting together. The knitting structure of yarn 27 is knitting with loose threads, loops, loops, and loose threads.

5. The anti-pilling thermal fabric of claim 1, wherein, The anti-pilling thermal insulation fabric also includes edge reinforcement strips along the four edges of the fabric. The edge reinforcement strips are woven from the 31st and 32nd yarns. The 31st yarn weave structure is loop stitch, loop stitch, loop stitch, loop stitch, and loop stitch. The 32nd yarn weave structure is float stitch, loop stitch, loop stitch, and float stitch. The reinforcement strips are 1.5-2cm wide and are interwoven with the edges of each layer by double-thread overlock stitch.

6. The anti-pilling thermal fabric of claim 5, wherein, At the intersection of the double-line locking seam of the edge reinforcement strip with the base layer (100), the thermal insulation intermediate layer (200), and the anti-pilling surface layer (300), several locking seam coils are formed within each centimeter of the edge reinforcement strip; the two ends of the edge reinforcement strip are interwoven and connected by overlapping, and the locking seam coil density at the overlapping is greater than that at the non-overlapping.

7. The anti-pilling thermal fabric of claim 1, wherein, The warp yarns of the base layer (100) in directions 1, 5, 9, 13, 17, 21, 25, and 28 are polyester yarns; the warp yarns of the insulation intermediate layer (200) in directions 3, 7, 11, 15, 19, 23, and 26 are polypropylene yarns; and the warp yarns of the anti-pilling surface layer (300) in directions 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, and 27 are modified polyester yarns.

8. The anti-pilling thermal fabric of claim 1, wherein, In the fluffy fleece layer of the thermal insulation intermediate layer (200), when the 3rd, 7th, 11th, 15th, 19th and 23rd yarns are woven, a coiling unit is set at least once every other coiling unit. The coil height of the coiling unit is greater than the coil height of the coiling unit. The coil height of the 26th yarn is the same as the coil height of the coiling unit.

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