Phase change temperature regulating multifunctional down comforter fabric and its preparation method

Abstract

This invention belongs to the field of functional fabric technology, specifically relating to a phase change temperature-regulating multifunctional down comforter fabric and its preparation method. The phase change temperature-regulating multifunctional down comforter fabric comprises, from the outside to the inside, a wear-resistant temperature-regulating fabric, a phase change temperature-regulating multifunctional fabric, and a breathable and waterproof membrane. The warp and weft yarns of the wear-resistant temperature-regulating fabric are both blended yarns obtained by blending 20-25 wt.% nylon fiber, 35-45 wt.% energy-storing temperature-regulating fiber, and 30-45 wt.% cellulose fiber. The warp yarns of the phase change temperature-regulating multifunctional fabric are blended yarns obtained by blending 70-80 wt.% energy-storing temperature-regulating fiber and 20-30 wt.% high-shrinkage fiber. The weft yarns are blended yarns obtained by blending 60-70 wt.% energy-storing temperature-regulating fiber and 30-40 wt.% antibacterial and deodorizing fiber. The down comforter fabric of this invention not only has excellent down-proof performance but also has temperature-regulating, antibacterial, and deodorizing functions.

Description

Technical Field

[0001] This invention belongs to the field of functional fabric technology, specifically relating to a phase change temperature regulating multifunctional down comforter fabric and its preparation method. Background Technology

[0002] Down comforters are increasingly popular due to their excellent warmth and lightweight properties. However, current down comforter fabrics generally only prioritize down-proof performance while offering relatively poor water resistance. Over time, sweat, saliva, or water droplets remaining on the surface of the comforter can seep into the interior, causing the down feathers to clump together and disrupting the loose, porous structure of the down, thus significantly reducing the comforter's insulation performance.

[0003] Currently, the mainstream fabrics used for down comforters fall into three main categories: pure cotton, cotton-polyester blends, and pure polyester. Cotton fibers absorb moisture and expand more easily than polyester fibers, thus their down-proof properties are slightly less durable. Polyester fibers have better down-proof durability, but they are prone to static electricity and cannot be biodegraded.

[0004] There are generally four methods to obtain high-performance down comforter fabrics that prevent down leakage during the production and processing of existing down comforters: The first method is to use all-over stitching, which not only reduces the feel and affects the appearance, but also still leaves holes that allow down to escape, resulting in less and less down content; The second method is to use high-count, high-density synthetic fiber fabrics to increase the fabric's tightness, but the product has poor breathability, causing stuffiness and static electricity problems. At the same time, simply increasing the fabric's weave density cannot effectively improve the down-proof performance. The third method involves coating and calendering the fabric. This process can significantly reduce the fabric's feel and softness, resulting in poor breathability. The fourth method, which has become popular in recent years, involves bonding a film to the fabric to form a composite fabric. This method uses a hot melt adhesive lamination process, where the film and fabric are bonded together with hot melt adhesive or other adhesives. If the area covered by the hot melt adhesive or other adhesive is too large, the fabric will feel stiff and have poor moisture permeability. However, if the area covered by the hot melt adhesive or other adhesive is too small, the fabric will have reduced strength and poor abrasion resistance, thus failing to meet the requirements for use.

[0005] Therefore, there is a need to develop a down comforter fabric that not only has excellent down-proof performance but also has multiple functions such as temperature regulation, antibacterial and deodorizing / antiviral properties, in order to meet consumers' requirements for health and comfort. Summary of the Invention

[0006] To address the problems existing in the prior art, the purpose of this invention is to provide a phase change temperature-regulating multifunctional down comforter fabric, comprising a wear-resistant temperature-regulating fabric from the outside to the inside, a phase change temperature-regulating multifunctional fabric, and a highly breathable and waterproof membrane. It not only has excellent down-proof performance but also has temperature-regulating, antibacterial, and deodorizing functions. This invention also provides its preparation method, which is feasible and easy to mass-produce.

[0007] The phase change temperature regulating multifunctional down comforter fabric of the present invention includes a wear-resistant temperature regulating fabric from the outside to the inside, a phase change temperature regulating multifunctional fabric and a breathable and waterproof membrane.

[0008] The wear-resistant and temperature-regulating fabric has warp and weft yarns that are blended yarns of 20-25 wt.% nylon fiber, 35-45 wt.% energy-storing and temperature-regulating fiber and 30-45 wt.% cellulose fiber, with a yarn count of 30-60S; warp density of 290-450 ends / 10cm and weft density of 300-500 ends / 10cm.

[0009] The warp yarn of the phase change temperature regulating multifunctional fabric is a blended yarn obtained by blending 70-80 wt.% of energy storage temperature regulating fiber and 20-30 wt.% of high shrinkage fiber, with a yarn count of 30-60S; the weft yarn is a blended yarn obtained by blending 60-70 wt.% of energy storage temperature regulating fiber and 30-40 wt.% of antibacterial and deodorizing fiber, with a yarn count of 30-60S; the warp density is 290-450 ends / 10cm, and the weft density is 300-500 ends / 10cm.

[0010] The breathable and waterproof membrane is a TPU film or a TPE film.

[0011] In phase-change temperature-regulating multifunctional down comforter fabrics, the abrasion-resistant and temperature-regulating fabric serves as the outer layer, primarily imparting abrasion resistance and comfort to the composite fabric. This invention uses a blended yarn of nylon fiber, energy-storage temperature-regulating fiber, and cellulose fiber in a specific ratio as the warp and weft yarns of the abrasion-resistant and temperature-regulating fabric. Nylon fiber enhances the fabric's abrasion resistance, the addition of energy-storage temperature-regulating fiber imparts energy-storage and temperature-regulating properties, and cellulose fiber itself possesses high strength and high wet modulus, resulting in superior comfort and hand feel. The blending of these fibers in a specific ratio allows the abrasion-resistant and temperature-regulating fabric to possess excellent abrasion resistance, comfort, and energy-storage and temperature-regulating properties.

[0012] The phase change temperature-regulating multifunctional fabric serves as the intermediate layer, primarily imparting multifunctionality to the fabric. This invention uses a blended yarn of energy-storing temperature-regulating fibers and high-shrinkage fibers as the warp, and a blended yarn of energy-storing temperature-regulating fibers and antibacterial and deodorizing fibers as the weft. The energy-storing temperature-regulating fibers impart energy-storing and temperature-regulating properties to the fabric, while the antibacterial and deodorizing fibers provide antibacterial properties and odor absorption. The addition of high-shrinkage fibers to the warp utilizes their high shrinkage to increase the porosity between different types of fibers in the intermediate layer, thereby increasing the amount of air trapped within the fabric and further improving its thermal insulation effect.

[0013] The breathable and waterproof membrane, as the inner layer, primarily enhances the fabric's down-proof properties. This invention utilizes a breathable and waterproof TPU or TPE membrane, which not only improves the fabric's down-proofness but also enhances its comfort by preventing moisture remaining on the surface of the down comforter from seeping into the comforter and contaminating the down during long-term use.

[0014] Preferably, the nylon fiber is nylon 6 fiber or nylon 66 fiber.

[0015] Preferably, the energy storage and temperature regulation fiber is produced by Qingdao Nishimi Biotechnology Co., Ltd. One or more of the following: constant temperature fiber, Outlast viscose fiber produced by Outlast Technology Corporation of the United States, and Outlast acrylic fiber produced by Outlast Technology Corporation of the United States.

[0016] Preferably, the cellulose fiber is one or more of cotton fiber, modal fiber, neodale fiber, and lyocell fiber.

[0017] Preferably, the antibacterial and deodorizing functional fiber is produced by Qingdao Nishimi Biotechnology Co., Ltd. — Chitosan antibacterial cotton, Zinc Shield — Instant deodorizing fibers —A blended yarn of collagen fibers; preferably produced by Qingdao Nishimi Biotechnology Co., Ltd. — Chitosan antibacterial cotton, Zinc Shield — Instant deodorizing fibers —A blended yarn obtained by blending collagen fibers in a mass ratio of 1:1:1:1.

[0018] Preferably, the high-shrinkage fiber is one of high-shrinkage polyester fiber and high-shrinkage polyacrylonitrile fiber, with a shrinkage rate between 35% and 45%.

[0019] Preferably, both the wear-resistant and temperature-regulating fabric and the phase-change temperature-regulating multifunctional fabric are woven fabrics with the same weave structure, facilitating subsequent lamination. The weave structure can be plain weave, twill weave, or satin weave, etc.

[0020] Preferably, the breathable and waterproof membrane has a thickness of 10–20 μm, a waterproof rating of ≥7000 mmH2O, and a moisture permeability of ≥3200 g / m³. 2 For 24 hours, either TPU film or TPE film that meets the above requirements can be used.

[0021] The preparation method of the phase change temperature regulating multifunctional down comforter fabric of the present invention includes the following steps:

[0022] The wear-resistant temperature-regulating fabric, the phase-change temperature-regulating multi-functional fabric, and the breathable and waterproof membrane are compounded in order from the outside to the inside using a dotting process, and then subjected to steam treatment to cool down, resulting in the phase-change temperature-regulating multi-functional down comforter fabric.

[0023] Preferably, the dispensing process is as follows: using polyester adhesive or polyurethane hot melt adhesive, with an application pressure of 0.20–0.45 MPa, a dispensing distance of 3–5 mm, and an adhesive dot density of 25–30 dots / cm². 2 The size of the glue dots is 0.1–0.4 mm. 2 .

[0024] Preferably, the steam treatment temperature is 110–180°C and the time is 20–35 min.

[0025] Preferably, during cooling, the temperature is reduced to 20-30℃ at a cooling rate of 5-10℃ / min to obtain a phase change temperature-regulating multifunctional down comforter fabric.

[0026] In this invention, after the fabric is laminated, the high-shrinkage fibers are shrunk by steam treatment. The high shrinkage rate of the high-shrinkage fibers increases the porosity between the high-shrinkage fibers and the weft yarn (a blend of energy-storing and temperature-regulating fibers and antibacterial and deodorizing fibers) of the phase change temperature-regulating multifunctional fabric in the middle layer. This increases the amount of air in the fabric, increases its fluffiness, and improves the fabric's heat retention effect.

[0027] The phase change temperature-regulating multifunctional down comforter fabric prepared by this invention has the following properties: down leakage rate not exceeding 4 strands (GB / T14272-2011); melt phase change enthalpy 10.8~20.1J / g, crystallization phase change enthalpy 10.2~19.5J / g (GB / T19466.3-2004); heat retention rate 39.55%~52.51% (GB / T11048-1989); softness ≥69.85 (PhabrOmeter@fabric hand feel tester); air permeability ≥26.9mm / s (GB / T 5453-1997); fabric abrasion resistance (mass abrasion rate) ≤0.23% (GB / T21196.3-2007); Staphylococcus aureus inhibition rate ≥89.5%, Escherichia coli inhibition rate ≥90.3%, Candida albicans inhibition rate ≥88.3% (GB / T 20944.3-2008); Ammonia reduction rate ≥86.5% (GB / T 33610.2-2017).

[0028] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0029] (1) This invention endows down comforters with excellent temperature regulation and warmth retention performance and antibacterial and deodorizing functions through the temperature regulation function of energy storage and temperature regulation fiber, the antibacterial and deodorizing function of antibacterial and deodorizing fiber, and the warmth retention function of the air inside the fabric.

[0030] (2) In this invention, a blended yarn of nylon fiber, energy storage and temperature regulation fiber and cellulose fiber in a certain ratio is used as the warp and weft yarn of the wear-resistant and temperature-regulating fabric. While giving the finished fabric energy storage and temperature regulation performance, the finished fabric also has excellent wear resistance and comfort.

[0031] (3) In the phase change temperature regulating multifunctional fabric, the present invention uses a blended yarn of energy storage temperature regulating fiber and high shrinkage fiber as warp yarn and a blended yarn of energy storage temperature regulating fiber and antibacterial and deodorizing fiber as weft yarn. This not only endows the finished fabric with excellent energy storage temperature regulating performance and antibacterial and deodorizing function, but also the addition of high shrinkage fiber combined with the steam finishing of the fabric utilizes the high shrinkage of high shrinkage fiber to increase the pores between high shrinkage fiber and blended fiber in the middle layer of phase change temperature regulating fabric, thereby increasing the amount of air in the fabric and further improving the heat preservation effect of the fabric.

[0032] (4) The present invention uses wear-resistant and temperature-regulating fabric with the same structure and phase change temperature-regulating multifunctional fabric, and adds a breathable membrane to enhance the down-proof performance of the down comforter fabric, improve the performance of subsequent fabrics, and improve comfort.

[0033] (5) The phase change temperature regulating multifunctional down comforter fabric of the present invention has excellent down-proof properties, good temperature regulation and warmth retention performance and antibacterial and deodorizing functions, with no more than 4 down strands, melting phase change enthalpy of 10.8~20.1J / g, crystallization phase change enthalpy of 10.2~19.5J / g, heat retention rate of 39.55~52.51%, softness ≥69.85, air permeability ≥26.9mm / s, abrasion resistance (mass abrasion rate) of the front side of the fabric ≤0.23%, Staphylococcus aureus inhibition rate ≥89.5%, Escherichia coli inhibition rate ≥90.3%, Candida albicans inhibition rate ≥88.3%, ammonia reduction rate ≥86.5%, and stable functionality. Detailed Implementation

[0034] The present invention will be further described below with reference to the embodiments. Unless otherwise specified, the raw materials used in the embodiments are all commercially available conventional raw materials; unless otherwise specified, the process methods used in the embodiments are conventional methods in the art. The embodiments of the present invention do not limit the amount of each raw material; any weight class can be used for preparation, as long as the specific raw material ratio is followed.

[0035] The raw materials used in the examples are described below:

[0036] — Chitosan antibacterial cotton, Zinc Shield — Instant deodorizing fibers —collagen fibers, Thermostatic fiber: Produced by Qingdao Nishimi Biotechnology Co., Ltd.

[0037] Outlast viscose fiber and Outlast acrylic fiber: manufactured by Outlast Technologies, Inc., USA.

[0038] Example 1

[0039] A phase-change temperature-regulating multifunctional down comforter fabric, the preparation method of which is as follows:

[0040] (1) Wear-resistant and temperature-regulating fabric:

[0041] Both warp and weft yarns consist of 20 wt.% nylon 6 fiber and 45 wt.% nylon 6 fiber. The blended yarn obtained by blending constant temperature fiber and 35 wt.% cotton fiber has a yarn count of 60S; the woven fabric is made by using the above warp and weft yarns, with a warp density of 450 ends / 10cm and a weft density of 500 ends / 10cm, and a plain weave structure, to obtain a wear-resistant and temperature-regulating fabric.

[0042] (2) Phase change temperature regulating multifunctional fabric:

[0043] The warp yarn is 80 wt.% The blended yarn, with a count of 60S, is obtained by blending constant temperature fiber and 20 wt.% high shrinkage polyester fiber (fiber shrinkage rate 35%, specification 1.7 dtex × 51 mm); the weft yarn consists of 70 wt.% Outlast acrylic fiber and 30 wt.% antibacterial and deodorizing fiber (mass ratio 1:1:1:1). — Chitosan antibacterial cotton, Zinc Shield — Instant deodorizing fibers —The blended yarn obtained by blending collagen fiber blended yarn has a yarn count of 60S; the woven fabric is made by using the above warp and weft yarns, with a warp density of 450 ends / 10cm and a weft density of 500 ends / 10cm, and the structure is plain weave, to obtain a phase change temperature regulating multifunctional fabric.

[0044] (3) Breathable and waterproof membrane:

[0045] It uses commercially available TPU film with a thickness of 10μm, meeting the requirements of waterproofness ≥7000mmH2O and moisture permeability ≥3200g / m². 2 ×24h;

[0046] (4) Fabric lamination and finishing:

[0047] The wear-resistant and temperature-regulating fabric, the phase-change temperature-regulating multifunctional fabric, and the breathable and waterproof membrane are laminated from the outside in using a dispensing process. Polyurethane hot melt adhesive is used, with an application pressure of 0.45 MPa, a dispensing distance of 3 mm, and a dot density of 30 dots / cm². 2 The glue dot size is 0.4mm. 2 After the fabric is laminated, it is steamed at 110℃ for 35 minutes, and then cooled to 30℃ at a cooling rate of 5℃ / min to obtain a phase change temperature regulating multifunctional down comforter fabric.

[0048] Example 2

[0049] A phase-change temperature-regulating multifunctional down comforter fabric, the preparation method of which is as follows:

[0050] (1) Wear-resistant and temperature-regulating fabric:

[0051] The blended yarn, consisting of 22 wt.% nylon 66 fiber, 40 wt.% Outlast acrylic fiber, and 38 wt.% modal fiber, has a yarn count of 42S. Woven fabrics are produced using the aforementioned warp and weft yarns, with a warp density of 380 ends / 10cm and a weft density of 410 ends / 10cm. The fabric structure is twill, resulting in a wear-resistant and temperature-regulating fabric.

[0052] (2) Phase change temperature regulating multifunctional fabric:

[0053] The warp yarn is a blended yarn of 75 wt.% Outlast acrylic fiber and 25 wt.% high-shrinkage polyester fiber (fiber shrinkage rate 45%, specification 1.56 dtex × 38 mm), with a yarn count of 42S; the weft yarn is 65 wt.% Outlast acrylic fiber and 35 wt.% antibacterial and deodorizing fiber (mass ratio 1:1:1:1). — Chitosan antibacterial cotton, Zinc Shield — Instant deodorizing fibers —The blended yarn obtained by blending collagen fiber blended yarn has a yarn count of 42S; the woven fabric is made by using the above warp and weft yarns, with a warp density of 380 ends / 10cm and a weft density of 410 ends / 10cm, and the weave structure is twill, thus obtaining a phase change temperature regulating multifunctional fabric.

[0054] (3) Breathable and waterproof membrane:

[0055] Commercially available TPE film with a thickness of 15μm is used, meeting the requirements of waterproofness ≥7000mmH2O and moisture permeability ≥3200g / m². 2 ×24h;

[0056] (4) Fabric lamination and finishing:

[0057] The wear-resistant and temperature-regulating fabric, the phase-change temperature-regulating multifunctional fabric, and the breathable and waterproof membrane are laminated together in an order from the outside to the inside using a dispensing process. Low-melting-point polyester is used for dispensing, with an application pressure of 0.33 MPa, a dispensing distance of 4 mm, and a dot density of 28 dots / cm². 2 The glue dot size is 0.25mm. 2 After the fabric is laminated, it is steamed at 150℃ for 26 minutes, and then cooled to 25℃ at a cooling rate of 7.5℃ / min to obtain a phase change temperature regulating multifunctional down comforter fabric.

[0058] Example 3

[0059] A phase-change temperature-regulating multifunctional down comforter fabric, the preparation method of which is as follows:

[0060] (1) Wear-resistant and temperature-regulating fabric:

[0061] The blended yarn, consisting of 25 wt.% nylon 66 fiber, 35 wt.% Outlast acrylic fiber, and 40 wt.% modal fiber, with a yarn count of 30S, is used to weave a woven fabric with a warp density of 290 ends / 10cm and a weft density of 300 ends / 10cm. The fabric has a satin weave structure, resulting in a wear-resistant and temperature-regulating fabric.

[0062] (2) Phase change temperature regulating multifunctional fabric:

[0063] The warp yarn is a blended yarn of 70 wt.% Outlast acrylic fiber and 30 wt.% high-shrinkage acrylic fiber (shrinkage rate 40%, specification 3.33 dtex × 51 mm), with a yarn count of 30S; the weft yarn is 60 wt.% Outlast acrylic fiber and 40 wt.% antibacterial and deodorizing fiber (mass ratio 1:1:1:1). — Chitosan antibacterial cotton, Zinc Shield — Instant deodorizing fibers —The blended yarn obtained by blending collagen fiber blended yarn has a yarn count of 30S; the woven fabric is made by using the above warp and weft yarns, with a warp density of 290 ends / 10cm and a weft density of 300 ends / 10cm, and the weave structure is satin, thus obtaining a phase change temperature regulating multifunctional fabric.

[0064] (3) Breathable and waterproof membrane:

[0065] It uses commercially available TPU film with a thickness of 20μm, meeting the requirements of waterproofness ≥7000mmH2O and moisture permeability ≥3200g / m². 2×24h;

[0066] (4) Fabric lamination and finishing:

[0067] The wear-resistant and temperature-regulating fabric, the phase-change temperature-regulating multifunctional fabric, and the breathable and waterproof membrane are laminated from the outside in using a dispensing process. Polyurethane hot melt adhesive is used, with an application pressure of 0.20 MPa, a dispensing distance of 5 mm, and a dot density of 25 dots / cm². 2 The glue dot size is 0.1mm. 2 After the fabric is laminated, it is steamed at 180℃ for 20 minutes, and then cooled to 20℃ at a cooling rate of 10℃ / min to obtain a phase change temperature regulating multifunctional down comforter fabric.

[0068] Comparative Example 1

[0069] The down comforter fabric in this comparative example uses a surface coating instead of a TPU film. The specific operation is as follows:

[0070] The wear-resistant and temperature-regulating fabric and the phase-change temperature-regulating multifunctional fabric obtained in steps (1) and (2) of Example 1 were composited using a dispensing process. Polyurethane hot melt adhesive was used for dispensing, with an application pressure of 0.45 MPa, a dispensing distance of 3 mm, and a dot density of 30 dots / cm. 2 The glue dot size is 0.4mm. 2 After the fabric is laminated, it is calendered using a calendering machine, and then a PU coating is applied to the surface of the phase change temperature regulating multifunctional fabric to obtain a phase change temperature regulating multifunctional down comforter fabric with a surface coating.

[0071] Comparative Example 2

[0072] The down comforter fabric in this comparative example does not have a TPU film laminated. The specific procedure is as follows:

[0073] The wear-resistant and temperature-regulating fabric and the phase-change temperature-regulating multifunctional fabric obtained in steps (1) and (2) of Example 1 were composited using a dispensing process. Polyurethane hot melt adhesive was used for dispensing, with an application pressure of 0.45 MPa, a dispensing distance of 3 mm, and a dot density of 30 dots / cm. 2 The glue dot size is 0.4mm. 2 After the fabric is laminated, a phase change temperature regulating multifunctional down comforter fabric is obtained.

[0074] Comparative Example 3

[0075] The only difference between this comparative example and Example 1 is that no steam finishing is performed after the fabric is laminated; the rest of the processes are exactly the same.

[0076] Comparative Example 4

[0077] The only difference between this comparative example and Example 1 is that in step (1), the warp and weft yarns of the abrasion-resistant and temperature-regulating fabric are both 50 wt.% nylon 6 fiber and 50 wt.% nylon 6 fiber. The blended yarn obtained by constant temperature fiber blending is processed in exactly the same way.

[0078] Comparative Example 5

[0079] The only difference between this comparative example and Example 1 is that the warp yarns of the phase change temperature-regulating multifunctional fabric in step (2) are... Thermostatic fiber, not blended with high-shrinkage polyester fiber, is produced using the same process as other fibers.

[0080] The down comforter fabrics prepared in each embodiment and comparative example were subjected to performance tests. The down leakage rate was tested according to standard GB / T14272-2011, with fabric sample bag dimensions of 110mm × 210mm. The enthalpy of melt phase transition and the enthalpy of crystallization phase transition were tested according to standard GB / T19466.3-2004. The heat retention rate was tested according to standard GB / T11048-1989. Softness was tested using a PhabrOmeter® fabric hand feel tester. Air permeability was tested according to standard GB / T 5453-1997, with the test index being air permeability (mm / s). Abrasion resistance was tested according to standard GB / T 21196.3-2007, with the test index being the mass abrasion rate (%) on the fabric's front side. The inhibition rates of Staphylococcus aureus, Escherichia coli, and Candida albicans were tested according to standard GB / T 20944.3-2008. The ammonia reduction rate was tested according to standard GB / T Tests were conducted according to 33610.2-2017; the test results are shown in Table 1.

[0081] Table 1

[0082]

[0083]

[0084] To verify the functional stability of the down comforter fabrics, the fabrics were washed 30 times according to the simplified washing conditions and procedures provided in standard FZ / T 73023-2006, and the functionality of the down comforter fabrics prepared in each embodiment and comparative example was tested again. The test results are shown in Table 2.

[0085] Table 2

[0086]

[0087] As can be seen from Tables 1-2, the down comforter fabrics prepared in Examples 1-3 of this invention have good down-proof properties and excellent phase change temperature regulation function, warmth retention, softness, abrasion resistance, and antibacterial and deodorizing properties. Compared with Example 1, Comparative Example 1 uses a surface coating instead of TPU film, resulting in reduced softness and breathability of the down comforter fabric; Comparative Example 2 does not use TPU film, resulting in a significant increase in down leakage and a decrease in warmth retention; Comparative Example 3 does not undergo steam finishing after fabric lamination, and the high-shrinkage fibers are not effectively shrunk, leading to a decrease in the warmth retention of the down comforter fabric; Comparative Example 4 does not add cellulose fibers to the outer abrasion-resistant and temperature-regulating fabric, and uses nylon 6 fibers for warp and weft yarns. While the blended yarn of constant temperature fiber improves the enthalpy and abrasion resistance of down comforter fabric, it reduces softness and comfort. In contrast, Comparative Example 5, the multifunctional fabric with phase change temperature regulation in the middle layer does not contain high-shrinkage polyester fiber. Even after steam finishing, it does not have the shrinkage of high-shrinkage polyester fiber, resulting in a reduction in the warmth retention of the down comforter fabric.

Claims

1. A phase-change temperature-regulating multifunctional down comforter fabric, characterized in that: This includes wear-resistant and temperature-regulating fabrics from the outside in, phase-change temperature-regulating multifunctional fabrics, and breathable and waterproof membranes. The wear-resistant and temperature-regulating fabric has warp and weft yarns that are blended yarns of 20-25 wt.% nylon fiber, 35-45 wt.% energy-storing and temperature-regulating fiber and 30-45 wt.% cellulose fiber, with a yarn count of 30-60S; warp density of 290-450 ends / 10cm and weft density of 300-500 ends / 10cm. The phase change temperature regulating multifunctional fabric has a warp yarn of 70-80 wt.% energy storage temperature regulating fiber and 20-30 wt.% high shrinkage fiber, with a yarn count of 30-60S; and a weft yarn of 60-70 wt.% energy storage temperature regulating fiber and 30-40 wt.% antibacterial and deodorizing fiber, with a yarn count of 30-60S; a warp density of 290-450 ends / 10cm and a weft density of 300-500 ends / 10cm. The breathable and waterproof membrane is a TPU film or a TPE film; The preparation method of phase change temperature-regulating multifunctional down comforter fabric includes the following steps: The wear-resistant temperature-regulating fabric, the phase-change temperature-regulating multi-functional fabric, and the breathable and waterproof membrane are compounded in order from the outside to the inside using a dotting process, and then subjected to steam treatment to cool down, resulting in the phase-change temperature-regulating multi-functional down comforter fabric.

2. The phase change temperature regulating multifunctional down comforter fabric according to claim 1, characterized in that: The nylon fiber is nylon 6 fiber or nylon 66 fiber.

3. The phase change temperature regulating multifunctional down comforter fabric according to claim 1, characterized in that: The energy storage and temperature regulation fiber is TEMPSOLUTION. ® One or more of the following: constant temperature fiber, outlast viscose fiber, and outlast acrylic fiber.

4. The phase change temperature regulating multifunctional down comforter fabric according to claim 1, characterized in that: The cellulose fiber is one or more of cotton fiber, modal fiber, neodale fiber, and lyocell fiber.

5. The phase change temperature regulating multifunctional down comforter fabric according to claim 1, characterized in that: The antibacterial and deodorizing functional fiber is cotsolution. ® —Cotton ® Chitosan antibacterial cotton, ZicPro ® Zinc Shield, Ocean Mystery ® —Freshcot ® Instant deodorizing fibers, the mystery of the ocean ® —A blended yarn made from collagen fibers.

6. The phase change temperature regulating multifunctional down comforter fabric according to claim 1, characterized in that: The high-shrinkage fiber is one of high-shrinkage polyester fiber and high-shrinkage polyacrylonitrile fiber, with a shrinkage rate between 35% and 45%.

7. The phase change temperature regulating multifunctional down comforter fabric according to claim 1, characterized in that: Both the wear-resistant temperature-regulating fabric and the phase-change temperature-regulating multifunctional fabric are woven fabrics with the same structure. The breathable and waterproof membrane has a thickness of 10~20μm, and its waterproofness is ≥7000mmH2O and its moisture permeability is ≥3200g / m³. 2 ×24h.

8. A method for preparing a phase change temperature-regulating multifunctional down comforter fabric according to any one of claims 1-7, characterized in that: Includes the following steps: The wear-resistant temperature-regulating fabric, the phase-change temperature-regulating multi-functional fabric, and the breathable and waterproof membrane are compounded in order from the outside to the inside using a dotting process, and then subjected to steam treatment to cool down, resulting in the phase-change temperature-regulating multi-functional down comforter fabric.

9. The method for preparing the phase change temperature-regulating multifunctional down comforter fabric according to claim 8, characterized in that: The dispensing process is as follows: use polyester adhesive or polyurethane hot melt adhesive, apply pressure of 0.20~0.45MPa, dispensing distance of 3~5mm, and adhesive dot density of 25~30 dots / cm. 2 The glue dots are 0.1~0.4mm in size. 2 .

10. The method for preparing the phase change temperature-regulating multifunctional down comforter fabric according to claim 8, characterized in that: The steam treatment temperature is 110~180℃, and the time is 20~35min.

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