Warm-keeping fabric

Abstract

The utility model relates to the technical field of woven fabrics, in particular to a warm-keeping fabric which is of a binding three-layer weave structure, the surface layer is an anti-static anti-pilling warm-keeping layer, the anti-static wear-resisting warm-keeping layer is composed of anti-static nitrile nylon ring spun yarn, the middle layer is a warm-keeping layer, the warm-keeping layer is composed of acrylic rotor yarn, and the inner layer is a far infrared comfortable warm-keeping layer. And the far infrared comfortable warm-keeping layer is formed by far infrared acrylic cotton ring spun yarns. Yarns of different types, different structures and different functions are adopted to be used for the surface layer, the middle layer and the inner layer of the fabric respectively to construct a binding three-layer weave, so that the fabric is good in heat retention property, antistatic, anti-pilling and good in comfort, has the far infrared heating and health care functions and can be used for clothes such as overcoats and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of textile fabrics, in particular to a thermal insulation fabric. Background Art

[0002] Double-layer fabrics are woven using a double weave. Two independent warp and weft yarn systems are used on the same machine to form the upper and lower layers of the fabric. Acrylic fibers have properties similar to wool, such as bulk, curl, and softness, and possess a wool-like feel and warmth. The fiber also boasts superior strength and abrasion resistance. Furthermore, acrylic fabrics are easy to wash and dry, require minimal care, and are resistant to light, weather, and mildew, as well as exhibiting excellent chemical stability. As a wool alternative, they quickly became widely used in decorative items, home textiles, and clothing. However, acrylic fibers are prone to static electricity generation and, when used as the top layer of fabric, still suffer from insufficient abrasion resistance and pilling. Furthermore, when used as the lining, acrylic fibers lack in feel and comfort.

[0003] Acrylic and double-layer fabrics are both commonly used as coat fabrics, but acrylic fiber also has some shortcomings. At the same time, three-layer fabrics are thicker and warmer. Acrylic three-layer fabrics can be developed as coat fabrics to enrich the types of coat fabrics. Utility Model Content

[0004] In response to the shortcomings of existing woven fabrics, the present application provides a thermal fabric. The present application utilizes the structural characteristics of a three-layer structure, and constructs a three-layer structure with yarns of different types, structures, and functions, so that the present application has good thermal insulation, anti-static, anti-pilling, and good comfort. At the same time, it has far-infrared heating and health care functions, and can be used for coats and other clothing.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A thermal insulation fabric has a three-layer structure. The surface layer is an antistatic and anti-pilling thermal insulation layer, and the antistatic and wear-resistant thermal insulation layer is composed of antistatic acrylic nylon ring yarn. The middle layer is a thermal insulation layer, and the thermal insulation layer is composed of acrylic rotor-spun yarn. The inner layer is a far-infrared comfortable thermal insulation layer, and the far-infrared comfortable thermal insulation layer is composed of far-infrared acrylic cotton ring yarn.

[0007] In the embodiment of the present application, the surface layer and the middle layer are connected via a "middle-to-surface" connection point, and the inner layer and the middle layer are connected via a "inner-to-middle" connection point.

[0008] In the embodiment of the present application, the three-layer stitching structure is a three-layer stitching structure with two-up and two-down right-angled twills as the basic structure.

[0009] In the embodiment of the present application, the antistatic nitrile ring yarn is a nitrile ring yarn treated with an antistatic finishing agent.

[0010] In the embodiment of the present application, the far-infrared acrylic cotton ring yarn is acrylic cotton ring yarn finished with a far-infrared finishing agent.

[0011] Compared with the prior art, the present invention provides a thermal insulation fabric having a three-layer structure. The surface layer is an antistatic and anti-pilling thermal insulation layer, which is composed of antistatic nylon nylon ring-spun yarn. The middle layer is a thermal insulation layer, which is composed of acrylic rotor-spun yarn. The inner layer is a far-infrared comfortable thermal insulation layer, which is composed of far-infrared nylon-cotton ring-spun yarn. The present invention uses yarns of different types, structures, and functions for the surface layer, middle layer, and inner layer of the present invention, respectively, to construct a three-layer structure. The surface layer of the present invention has thermal insulation, antistatic, wear resistance, and anti-pilling properties, the middle layer has even better thermal insulation properties, and the inner layer is warm and comfortable. It also has far-infrared heating and health care functions, and can be used in coats and other clothing. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a cross-sectional structural diagram of a thermal insulation fabric provided by the utility model.

[0013] Figure 2 The utility model provides a tissue diagram of a thermal insulation fabric. DETAILED DESCRIPTION

[0014] The following will clearly and completely describe the technical solution of the present invention through specific implementation methods. Obviously, the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0015] In the description of this application, it should be understood that terms such as "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", and "outside" indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on this application.

[0016] Multi-layer fabric: Multi-layer fabrics are made by weaving together several layers (two or more) of fabric using their own warp and weft yarns. This structure creates a tight bond between the layers, increasing strength and preventing unraveling. It also offers softness, breathability, and strong flex resistance. Using different yarns for each layer can achieve specific functions, such as warmth retention and anti-static properties.

[0017] A fabric in which three systems (or more systems) of warp and weft yarns are interwoven, overlapped with each other in the fabric, and connected in a certain way is called a three-layer (or multi-layer) fabric, and the weave used is called a three-layer (or multi-layer) weave.

[0018] A three-layer weave is made up of three systems of warp and weft yarns, each of which is interwoven to form the surface, middle, and lining layers of the fabric. A three-layer weave in which the three layers are tightly connected by knots is called a knotted three-layer weave.

[0019] The present application provides a thermal insulation fabric with a three-layer structure. The surface layer is an anti-static and anti-pilling thermal insulation layer. The anti-static and wear-resistant thermal insulation layer is composed of anti-static nitrile nylon ring yarn. The middle layer is a thermal insulation layer. The thermal insulation layer is composed of acrylic rotor yarn. The inner layer is a far-infrared comfortable thermal insulation layer. The far-infrared comfortable thermal insulation layer is composed of far-infrared nitrile cotton ring yarn.

[0020] The woven fabric provided by the present application has good warmth retention, anti-static, anti-pilling, good comfort, and has far-infrared heating and health care functions, and can be used for coats and other clothing.

[0021] See also Figure 1-2 , Figure 1 To illustrate the layered arrangement of fabric structure from the cross-sectional direction of the fabric, Figure 2 The organization diagram of the thermal insulation fabric provided in the embodiment of the present application, wherein 1 is the surface layer, 2 is the middle layer, 3 is the inner layer, 11 is the first warp yarn of the surface layer, 21 is the second warp yarn of the surface layer, 31 is the third warp yarn of the surface layer, 41 is the fourth warp yarn of the surface layer, 51 is the first weft yarn of the surface layer, 61 is the second weft yarn of the surface layer, 71 is the third weft yarn of the surface layer, 81 is the fourth weft yarn of the surface layer, 12 is the first warp yarn of the middle layer, 22 is the second warp yarn of the middle layer, 32 is the third warp yarn of the middle layer, 42 is the fourth warp yarn of the middle layer Yarn, 52 is the first weft yarn of the middle layer, 62 is the second weft yarn of the middle layer, 72 is the third weft yarn of the middle layer, 82 is the fourth weft yarn of the middle layer, 13 is the first warp yarn of the inner layer, 23 is the second warp yarn of the inner layer, 33 is the third warp yarn of the inner layer, 43 is the fourth warp yarn of the inner layer, 53 is the first weft yarn of the inner layer, 63 is the second weft yarn of the inner layer, 73 is the third weft yarn of the inner layer, 83 is the fourth weft yarn of the inner layer, 91 is the joining point of "middle joint surface", 92 is the joining point of "inner joint middle", and 93 is the layering point.

[0022] The connection methods for three-layer tissues are: middle to surface, inside to middle (i.e. bottom to top); surface to middle, middle to inside (i.e. top to bottom); surface to middle, inside to middle (i.e. top and bottom to middle); middle to surface, middle to inside (i.e. middle to top and bottom); and connection line connection method.

[0023] See also Figure 1-2As shown, the thermal insulation fabric has a "bottom-to-top" three-layer structure with two-up and two-down right-hand twill as the basic organization. The surface layer 1 is an antistatic and anti-pilling thermal insulation layer, the surface layer first warp yarn 11, the surface layer second warp yarn 21, the surface layer third warp yarn 31, the surface layer fourth warp yarn 41, the surface layer first weft yarn 51, the surface layer second weft yarn 61, the surface layer third weft yarn 71, the surface layer fourth weft yarn 81, the antistatic wear-resistant thermal insulation layer is composed of antistatic nitrile ring yarn, that is, the warp yarn and weft yarn of the surface layer 1 are both antistatic nitrile ring yarn, the middle layer 2 is a thermal insulation layer, the middle layer first warp yarn 12, the middle layer second warp yarn 22, the middle layer third warp yarn 32, the middle layer fourth warp yarn 42, the middle layer first weft yarn 52, the middle layer second weft yarn 62, the third weft yarn of the middle layer 72, the fourth weft yarn of the middle layer 82, the thermal insulation layer is composed of acrylic rotor yarn, that is, the warp yarn and weft yarn of the middle layer 2 are both acrylic rotor yarn, the inner layer 3 is a far-infrared comfortable thermal insulation layer, the first warp yarn of the inner layer 13, the second warp yarn of the inner layer 23, the third warp yarn of the inner layer 33, the fourth warp yarn of the inner layer 43, the first weft yarn of the inner layer 53, the second weft yarn of the inner layer 63, the third weft yarn of the inner layer 73, the fourth weft yarn of the inner layer 83, the far-infrared comfortable thermal insulation layer is composed of far-infrared acrylic cotton ring yarn, that is, the warp yarn and weft yarn of the inner layer 3 are both far-infrared acrylic cotton ring yarn, the surface layer 1 and the middle layer 2 are connected by the "middle to surface" connection point 91, and the inner layer 3 and the middle layer 2 are connected by the "inner to middle" connection point 92.

[0024] The surface layer 1 and the middle layer 2 are connected via a “middle connection” junction 91 . For example, the second weft yarn 61 of the surface layer 1 and the first warp yarn 12 of the middle layer 2 form a “middle connection” junction 91 .

[0025] The inner layer 3 and the middle layer 2 are connected by a "middle inner" junction 92 , for example, the second weft yarn 62 of the middle layer 2 and the first warp yarn 13 of the inner layer 3 form a "middle inner" junction 92 .

[0026] Acrylic-cotton blended yarn is a mixture of acrylic and cotton fibers, produced by blending them together. This combination of two fibers creates a fabric that combines the advantages of both: acrylic's excellent stretch and washability, combined with cotton's pleasant feel, comfort, sweat absorption, and breathability. Furthermore, compared to acrylic yarn, acrylic-cotton blended yarn is less prone to static electricity generation.

[0027] Wool yarn made from a blend of acrylic and nylon, also known as acrylic-nylon blended yarn, is a synthetic fiber yarn. This yarn combines the advantages of acrylic and nylon, offering excellent abrasion resistance, pilling resistance, wrinkle resistance, and elasticity while maintaining high warmth retention. The softness and warmth of acrylic combined with the abrasion resistance, pilling resistance, and wrinkle resistance of nylon make this blended yarn highly competitive in the market.

[0028] Ring spinning is the most widely used and versatile spinning method on the market. Fiber slivers, after being drawn, are introduced through a ring wire ring. The bobbin winds faster than the ring wire, twisting the cotton yarn into fine yarn. It is widely used in various short-staple spinning projects, such as carded, combed, and blended yarns. The ring wire ring is driven by the bobbin through the yarn sliver and rotates around a steel collar to twist the yarn. Friction from the collar causes the ring wire ring to rotate slightly slower than the copper tube, allowing the yarn to be wound. Spinning speeds are high, and the ring yarn forms a conical helix with fibers that are mostly inward-outward-transferred, resulting in the fibers being intertwined and connected within the yarn. The yarn is dense and strong, making it suitable for thread making, weaving, and knitting.

[0029] Air-jet spinning is a new spinning technology that uses airflow to condense and twist fibers within a high-speed rotating spinning cup, producing yarn. It does not require a spindle, relying primarily on multiple components, including a carding roller, a spinning cup, and a false twist device. The carding roller grabs and combs the incoming sliver fibers, and the centrifugal force generated by its high-speed rotation ejects the captured fibers. The spinning cup is a small metal cup that rotates at speeds over 10 times faster than the carding roller. The resulting centrifugal force expels the air inside the cup. Based on the principle of fluid pressure, cotton fibers enter the airflow cup, forming a fiber stream that continuously moves along the inner wall of the cup.

[0030] Open-end spinning and ring spinning are two new and older textile technologies, respectively. Open-end spinning is air-spun, while ring spinning is mechanical spinning, where twisting is performed by a spindle, a ring ring, and a traveler, and drafting is performed by rollers. Open-end spinning, on the other hand, uses airflow to transport the fibers, which are held at one end for twisting. Generally speaking, ring-spun yarn has more hairiness than open-end spinning, resulting in higher strength and quality. Open-end spinning has a shorter process, produces less hairiness, and can't produce very high counts or twists, resulting in a lower price. In terms of yarn structure, ring-spun yarn is denser, while open-end spinning is more fluffy and rugged, resulting in a generally coarser yarn.

[0031] The outer layer and inner layer of this application are respectively made of antistatic acrylic nylon ring yarn and far-infrared acrylic cotton ring yarn, both of which are ring-spun yarns. Therefore, the outer layer yarn is relatively dense, high-strength and high-quality, and thus used for the outer layer and inner layer. The middle layer is made of acrylic rotor-spun yarn, which is rotor-spun yarn, making the middle layer more fluffy and better in terms of warmth retention.

[0032] In an embodiment of the present application, the antistatic nitrile ring yarn is a nitrile ring yarn finished with an antistatic finishing agent. In the field of functional finishing of textiles, antistatic finishing is an important technology. Static electricity not only causes discomfort to the human body, but may also cause safety hazards under certain circumstances. Therefore, it is crucial to improve the antistatic properties of textiles through antistatic finishing processes. Antistatic finishing mainly reduces the accumulation of static electricity by forming a conductive layer on the surface of the textile or increasing the conductivity of the fiber itself. This usually involves special chemical treatment to make the textile have better conductivity, and then quickly conduct the generated static electricity into the ground to avoid the accumulation and discharge of static electricity. In the present application, the antistatic nitrile ring yarn is made using an antistatic finishing agent and a known impregnation finishing method known in the art.

[0033] In a preferred embodiment of this application, the antistatic finish can be DM-3730 from Guangdong Demei Fine Chemical Group Co., Ltd. or SEP809 from Shanghai Hete Chemical Co., Ltd. SEP809 is suitable for antistatic and stain-resistant applications on polyester fabrics, polyester blends, nylon, and other synthetic fibers, as well as their blends. It is particularly suitable for clothing, linings, decorative fabrics, and household textiles. It imparts excellent antistatic properties, oil repellency, hygroscopicity, and hydrophilicity to fabrics, while also providing good washability and dry-cleaning resistance. Padding and impregnation (also known as exhaustion) methods are recommended for applying SEP809. DM-3730 is used for antistatic finishing of synthetic fiber fabrics such as nylon and acrylic. It can also be used for antistatic finishing of cotton fabrics under low-humidity conditions. Dipping and padding methods can be used.

[0034] In the embodiments of this application, the far-infrared acrylic cotton ring yarn is treated with a far-infrared finishing agent. Far-infrared textiles are made by combining functional materials that emit far-infrared rays with textiles to impart far-infrared functionality. This is generally achieved through two methods: one is through post-finishing technology, where far-infrared micropowder, solvent adhesives, and additives are mixed in a certain proportion to form a far-infrared finishing agent. The far-infrared finishing agent is then combined with the textile through post-finishing methods such as impregnation, padding, coating, or spraying to impart far-infrared functionality. In this application, the far-infrared acrylic cotton ring yarn is produced using a far-infrared finishing agent and a known impregnation finishing method known in the art.

[0035] In a preferred embodiment of this application, the far-infrared finishing agent can be the functional finishing agent FRA210 from Shanghai Hut Chemical Co., Ltd. or the nano far-infrared finishing agent 658 from Shanghai Beilai Textile Technology Co., Ltd. The functional finishing agent FRA210 can be applied to fabrics using processes such as padding, dipping, and coating. The typical dosage is 4-5% (owf), with the specific dosage and application method depending on the type of fabric. Nano far-infrared finishing agent 658 can be applied using processes such as dipping and padding.

[0036] In exhaust dyeing, the ratio of the dye liquor mass to the mass of the substrate is called the bath ratio. Since the dyeing medium is generally water, the bath ratio is usually expressed as the ratio of the dye liquor volume (L) to the mass of the substrate (kg). Dye dosage is generally expressed as a percentage of the fiber weight (owf), also known as dye concentration. When using the impregnation method for functional finishing, the bath ratio is usually expressed as the ratio of the finishing agent mass to the substrate mass. The finishing agent dosage is also generally expressed as a percentage of the fiber weight (owf).

[0037] The surface density, i.e., the mass per unit area, of all fabrics, including woven fabrics, knitted fabrics, braided fabrics, and non-woven fabrics, is uniformly defined as the mass per unit area at the standard moisture regain, with the unit being g / m2.

[0038] Linear density refers to the mass per unit length of fiber, single yarn, mesh cable, rope, etc., and is an indicator of the thickness of the yarn; the higher the linear density, the thicker the fiber or yarn. Tex, abbreviated as tex, refers to the weight in grams of 1000 meters of fiber or yarn at the standard moisture regain and is the unit of linear density for fixed-length systems; tex is commonly known as the number for cotton yarn. Denier (D, short for denier) refers to the weight in grams of a 9000-meter-long fiber bundle; the linear density of a yarn can also be expressed by its diameter. The linear density of a chemical fiber multifilament is generally expressed by the number of individual filaments and the total tex number, such as: 16.5tex / 30f, indicating a total multifilament density of 16.5tex and 30 individual filaments.

[0039] The linear density is mainly determined by metric count (N) and imperial count (S); among them, imperial count refers to the length of yarn per unit weight (1 pound) at the standard regain rate as a multiple of 840 yards. The larger the count, the thinner the yarn.

[0040] In summary, the present application uses yarns of different types, structures and functions, which are respectively used for the surface layer, middle layer and inner layer of the present application to construct a three-layer structure, so that the surface layer of the present application has the properties of warmth retention, anti-static, wear resistance and anti-pilling, the middle layer has better warmth retention, the inner layer is warm and comfortable, and also has far-infrared heating and health care functions, and can be used for coats and other clothing.

[0041] In order to better understand the technical content of this application, the following specific examples are provided to further illustrate the cool breathable woven fabric provided by this application. In the following examples, the raw materials used are all commercially available.

[0042] Example 1

[0043] See also Figure 1As shown, a thermal insulation fabric has a unit area mass of 823g / m2 and a three-layer structure. The surface layer 1 is an anti-static and anti-pilling thermal insulation layer, and the anti-static and wear-resistant thermal insulation layer is composed of 12S anti-static acrylic nylon ring yarn. The middle layer 2 is a thermal insulation layer, and the thermal insulation layer is composed of 12S acrylic rotor yarn. The inner layer 3 is a far-infrared comfortable thermal insulation layer, and the far-infrared comfortable thermal insulation layer is composed of 12S far-infrared acrylic cotton ring yarn. The surface layer 1 and the middle layer 2 are connected by a "middle-to-surface" connection point 91, and the inner layer 3 and the middle layer 2 are connected by a "middle-to-middle" connection point 92.

[0044] The antistatic acrylic ring yarn is a acrylic ring yarn finished with antistatic agent DM-3730. The blending ratio of acrylic and nylon in the acrylic ring yarn is 50 / 50. The finishing process is 4% owf antistatic agent DM-3730, bath ratio 1:10, treatment at 85℃ for 20 minutes, dehydration and drying at 100℃, and then heat setting at 180℃ for 30 seconds.

[0045] The far-infrared acrylic cotton ring yarn is a acrylic cotton ring yarn finished with a functional finishing agent FRA210. The blending ratio of acrylic and cotton in the acrylic cotton ring yarn is 50 / 50. The finishing process is 5% owf functional finishing agent FRA210, bath ratio 1:10, 85℃ treatment for 30 minutes, dehydration and drying.

[0046] Example 2

[0047] The antistatic finishing agent used in Example 2 is antistatic finishing agent SEP809, the far-infrared finishing agent is nano far-infrared finishing agent 658, and the rest is the same as in Example 1.

[0048] After repeated research and extensive testing, this application uses a three-layer stitched fabric to produce this utility model for coat fabric. Common coat fabrics on the market are double-layer or single-layer fabrics. Therefore, this application uses a three-layer acrylic fabric as a comparative example.

[0049] Comparative Example 1

[0050] The warp yarn and weft yarn of Comparative Example 1 are both 12S ring-spun acrylic yarns, and the rest are the same as those of Example 1.

[0051] The performance test results are as follows:

[0052] According to the test of "ISO 12947.2 Martindale Abrasion Resistance - Sample Rupture Method", the friction times of Example 1 and Example 2 are similar, which is 15-20% higher than that of Comparative Example 1. Therefore, the surface layer of the utility model adopts antistatic nitrile ring yarn, which has better wear resistance.

[0053] According to the half-life method of "GB / T 12703.1 Test method for electrostatic properties of textiles - Part 1: Corona charging method", the half-life of Example 1 was shortened by 25.5% compared to that of Comparative Example 1, and the half-life of Example 2 was shortened by 19.3% compared to that of Comparative Example 1. The antistatic properties of Examples 1 and 2 were significantly improved.

[0054] It can be seen from the above embodiments that the present application uses yarns of different types, structures and functions, which are respectively used for the surface layer, middle layer and inner layer of the present application to construct a three-layer structure, so that the surface layer of the present application has the properties of warmth retention, anti-static, wear resistance and anti-pilling, the middle layer has better warmth retention, the inner layer is warm and comfortable, and also has far-infrared heating and health care functions, and can be used for coats and other clothing.

[0055] The terms "first," "second," and so on in the specification, claims, and drawings of this utility model are used to distinguish between different items, not to describe a specific order. Furthermore, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements and may include steps or elements that are not listed.

[0056] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A thermal insulation fabric having a three-layer structure, wherein the surface layer is an antistatic and anti-pilling thermal insulation layer, the antistatic and wear-resistant thermal insulation layer is composed of antistatic acrylic nylon ring-spun yarn, the middle layer is a thermal insulation layer, the thermal insulation layer is composed of acrylic rotor-spun yarn, and the inner layer is a far-infrared comfortable thermal insulation layer, the far-infrared comfortable thermal insulation layer is composed of far-infrared acrylic cotton ring-spun yarn.

2. The thermal insulation fabric according to claim 1, characterized in that: The surface layer and the middle layer are connected via a "middle-to-surface" connection point, and the inner layer and the middle layer are connected via a "inner-to-middle" connection point.

3. The thermal insulation fabric according to claim 1, characterized in that: The three-layer stitching structure is a stitching structure with two-up and two-down right-angled twills as the basic structure.

4. The thermal insulation fabric according to claim 1, characterized in that: The antistatic nitrile nylon ring yarn is a nitrile nylon ring yarn finished with an antistatic finishing agent.

5. The thermal insulation fabric according to claim 1, characterized in that: The far-infrared nitrile cotton ring yarn is a nitrile cotton ring yarn finished with a far-infrared finishing agent.

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