Intelligent temperature-regulating 3D warp-knitted spacer fabric and its preparation method

Abstract

A smart temperature-regulating 3D warp-knitted spacer fabric and its preparation method are disclosed. The fabric includes a first spacer and a second spacer, each comprising an upper layer, a lower layer, and an inner layer. The outer surfaces of the upper and lower layers of the first spacer contain temperature-sensitive smart yarns, while the inner surfaces contain conventional yarns. Similarly, the outer surfaces of the upper and lower layers of the second spacer contain conventional yarns, and the inner surfaces contain temperature-sensitive smart yarns. When the ambient temperature is low, the inner and outer surfaces of the upper and lower layers of different spaces, composed of temperature-sensitive smart yarns, shrink. The inner and outer surfaces composed of conventional yarns, due to the shrinkage and stretching of the outer surface yarns, form a curvature facing either the inner or outer surface, creating a fluffy space conducive to the retention of still air. Simultaneously, the shrinkage and stretching of the yarns causes them to bend, making the fabric structure denser and preventing air convection and heat loss, thus providing warmth.

Description

Technical Field

[0001] This invention relates to the field of smart textile fabrics, and more particularly to smart temperature-regulating 3D warp-knitted spacer fabrics and their preparation methods. Background Technology

[0002] Since the advent of new thermal insulation and temperature-regulating yarns and fabrics, their development and research have remained at a high level. Intelligent temperature-regulating yarns and their products are highly dynamic high-tech products that can adjust their own temperature according to changes in ambient temperature. This not only improves product comfort but also has extremely high added value, enabling high efficiency. Therefore, in recent years, various new types of thermal insulation and temperature-regulating textiles have emerged, such as far-infrared yarns, cooling fabrics, and heat-storing yarns.

[0003] Currently, most temperature-controlled fibers and their products on the market are passive, isolated, and unable to regulate themselves, failing to adjust to humid, cold, or hot environments. Furthermore, their structure cannot accommodate the morphological changes of fibers during temperature variations. Therefore, existing technologies require a fabric with good breathability and intelligent temperature regulation to be used in clothing, footwear, home furnishings, and outdoor products, to meet the diverse needs of users. Summary of the Invention

[0004] The purpose of this invention is to solve the aforementioned problems in the prior art and provide intelligent temperature-regulating 3D warp-knitted spacer fabric and its preparation method. Utilizing intelligent temperature-sensitive yarns, a new fabric structure is constructed through physical methods. By adjusting the temperature-sensitive changes in loft, the thermal resistance of the fabric is controlled, reducing heat loss from the human body and thus regulating body temperature. When the external temperature is low, the inner and outer surfaces of the upper and lower layers, composed of temperature-sensitive intelligent yarns, shrink in different zones. The inner and outer surfaces, composed of conventional yarns, are stretched due to the shrinkage of the outer surface yarns, forming a flexural shape facing either the inner or outer surface, creating different zones that are fluffy and conducive to the retention of still air. Simultaneously, the shrinkage and stretching of the yarns causes them to bend, making the fabric structure denser and preventing air convection and heat loss, thus providing warmth.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A smart temperature-regulating 3D warp-knitted spacer fabric includes a first section and a second section. Both the first and second sections include an upper layer, a lower layer, and an inner layer. The outer surfaces of the upper and lower layers of the first section contain a large proportion of temperature-sensitive smart yarns, while the inner surfaces of the upper and lower layers of the first section are made of conventional yarns or contain a small proportion of temperature-sensitive smart yarns. The outer surfaces of the upper and lower layers of the second section are made of conventional yarns or contain a small proportion of temperature-sensitive smart yarns, while the inner surfaces of the upper and lower layers of the second section contain a large proportion of temperature-sensitive smart yarns.

[0007] The temperature-sensitive smart yarn is made of temperature-sensitive differential shrinkage yarn or hollow fiber yarn that expands and shrinks with temperature changes.

[0008] The temperature-sensitive, differentially shrinking yarn can be any chemical fiber base such as polyester, nylon, or polypropylene.

[0009] The cold-expanding and heat-shrinking hollow fiber yarn can be any chemical fiber base such as polyester, nylon, or polypropylene.

[0010] The thickness of the conventional yarn and the temperature-sensitive intelligent yarn is 75D to 900D, preferably 100D and 300D.

[0011] The intelligent temperature-regulating 3D warp-knitted spacer fabric has a weave width of 2–60 mm.

[0012] The inner layer is made of elastic yarn with an elastic elongation greater than 300%. When the outer surfaces of the first and second sections shrink, the yarn can shrink and elongate with the flexing changes of the upper and lower layers, making the fabric fluffy in cold environments and flat in warm environments.

[0013] The first and second intervals are arranged alternately to form a series of heat-insulating zones in which the fabric structure changes with temperature.

[0014] A method for preparing an intelligent temperature-regulating 3D warp-knitted spacer fabric, wherein the intelligent temperature-regulating 3D warp-knitted spacer fabric is woven on a double-needle-bed warp knitting machine with at least 6 guide bars, preferably an HDR6 DPLM type warp knitting machine; the 6 guide bars, from front to back of the machine, are: guide bars GB1 and GB2 that are woven only on the front needle bed, guide bars GB5 and GB6 that are woven only on the back needle bed, and guide bars GB3 and GB4 that are woven in loops sequentially on the front and back needle beds.

[0015] Method 1: GB1 uses a one-through-one-open threading method to thread temperature-sensitive intelligent yarn in the first section, and a full-through method to thread temperature-sensitive intelligent yarn in the second section; GB2 uses a full-through threading method to thread regular yarn in the first section, and a one-through-one-open threading method to thread regular yarn in the second section, only forming loops at the front needle mattress yarn to form the upper layer of the intelligent temperature-regulating 3D warp-knitted spacer fabric.

[0016] GB6 uses a one-through-one-open threading method to thread temperature-sensitive intelligent yarn in the first section and a full-through method in the second section. GB5 uses a full-through method to thread regular yarn in the first section and a one-through-one-open method in the second section. It only forms loops in the back needle mattress yarn to form the lower layer of the intelligent temperature-regulating 3D warp-knitted spacer fabric.

[0017] GB3 and GB4 are threaded into elastic yarns with an elastic elongation greater than 300% using a one-through-one-open threading method. The yarns are alternately padded on the front and rear needle beds to form loops, forming the inner layer of the intelligent temperature-regulating 3D warp-knitted spacer fabric.

[0018] Method 2: GB1 uses a one-through-one-open threading method to thread 50-100D temperature-sensitive intelligent yarn in the first section, and a one-through-one-open threading method to thread 150-300D temperature-sensitive intelligent yarn in the second section; GB2 uses a one-through-one-open threading method to thread 150-300D temperature-sensitive intelligent yarn in the first section, and a one-through-one-open threading method to thread 50-100D temperature-sensitive intelligent yarn in the second section, forming loops only at the front needle mattress yarn to form the upper layer of the intelligent temperature-regulating 3D warp-knitted spacer fabric.

[0019] GB6 uses a one-through-one-open yarn threading method to insert 50-100D temperature-sensitive intelligent yarn in the first section, and a one-through-one-open yarn threading method to insert 150-300D temperature-sensitive intelligent yarn in the second section; GB5 uses a one-through-one-open yarn threading method to insert 150-300D temperature-sensitive intelligent yarn in the first section, and a one-through-one-open yarn threading method to insert 50-100D temperature-sensitive intelligent yarn in the second section, forming loops only at the back needle mattress yarn to form the lower layer of the intelligent temperature-regulating 3D warp-knitted spacer fabric.

[0020] GB3 and GB4 are threaded into elastic yarns with an elastic elongation greater than 300% using a one-through-one-open threading method. The yarns are alternately padded on the front and rear needle beds to form loops, forming the inner layer of the intelligent temperature-regulating 3D warp-knitted spacer fabric.

[0021] Method 3: GB1 and GB6 are threaded with temperature-sensitive intelligent yarn in the first section and regular yarn in the second section; GB2 and GB5 are threaded with regular yarn in the first section and temperature-sensitive intelligent yarn in the second section, forming loops only on the front and back needle beds to form the upper and lower layers of the intelligent temperature-regulating 3D warp-knitted spacer fabric. The specific yarn padding numbers are: GB1 and GB6: (1-0, 1-2)*3 / (2-3, 2-1)*3 / / , GB2 and GB5: (2-3, 2-1)*3 / (1-0, 1-2)*3 / / ; GB3 and GB4 are threaded with elastic yarns with an elastic elongation greater than 300% in a one-through-one-open threading method, forming loops on the front and back needle beds respectively to form the inner layer of the intelligent temperature-regulating 3D warp-knitted spacer fabric. The specific yarn padding numbers are: GB3 and GB4: 1-0 / 5-6 / / .

[0022] Compared with the prior art, the beneficial effects achieved by the technical solution of this invention are:

[0023] 1. This invention includes a first section and a second section, each comprising an upper layer, a lower layer, and an inner layer. The outer surfaces of the upper and lower layers of the first section contain temperature-sensitive intelligent yarns, and the inner surfaces of the upper and lower layers of the first section contain conventional yarns. The outer surfaces of the upper and lower layers of the second section contain conventional yarns, and the inner surfaces of the upper and lower layers of the second section contain temperature-sensitive intelligent yarns. When the weather gets cold, the outer surfaces of the upper and lower layers, composed of a larger proportion of temperature-sensitive intelligent yarns, and the inner surfaces, composed of conventional yarns or a smaller proportion of temperature-sensitive intelligent yarns, form continuous flexing facing the inner and outer surfaces due to the difference in yarn shrinkage. This creates a fluffy first and second section that facilitates the storage of still air. Furthermore, the shrinkage of the yarns makes the fabric structure denser, preventing air convection and heat loss, thus providing warmth. Alternatively, the thermal expansion of the intelligent temperature-sensitive yarns makes the fabric structure denser and fluffier, also providing warmth.

[0024] 2. In this invention, the temperature-sensitive differential shrinkage yarn can be any chemical fiber base such as polyester, nylon, or polypropylene. When the temperature decreases, the shrinkage difference of the differential shrinkage fibers increases, the yarn or fabric becomes fluffier, the interlayer becomes thicker, the amount of still air increases, and the heat retention is improved; conversely, when the temperature decreases, the interlayer becomes thinner, the air permeability increases, and the heat retention decreases.

[0025] 3. In this invention, the cold-expanding and heat-shrinking hollow fiber yarn can be any chemical fiber base such as polyester, nylon, or polypropylene. The principle is to fill the cavity of the chemical fiber with a special chemical substance (such as an anomalous expansion substance). When the weather is cold, this substance condenses and expands in volume, making the fibers and yarns thicker, thus making the fabric denser and thicker, preventing heat loss from the body. When the temperature rises, the chemical substance inside becomes liquid again, the fibers and yarns become thinner, the fabric becomes thinner, and heat loss increases.

[0026] 4. This invention utilizes intelligent temperature-sensitive yarn to construct a new fabric structure through physical methods. By adjusting the temperature-sensitive changes in loft, it can autonomously regulate the thermal resistance and thickness of the fabric according to environmental changes, thereby regulating the loss of body heat and ultimately regulating body temperature.

[0027] 5. This invention regulates temperature entirely through changes in physical structure, without involving any chemical processes. It is safe and environmentally friendly, and the temperature regulation effect is permanent and will not be affected by washing or other factors. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the intelligent temperature-regulating 3D warp-knitted spacer fabric of the present invention.

[0029] Reference numerals: First interval 1, Second interval 2, Outer surface of upper and lower layers of the first interval 3, Outer surface of upper and lower layers of the second interval 4, Inner surface of upper and lower layers of the first interval 5, Inner surface of upper and lower layers of the second interval 6, Inner layer 7. Detailed Implementation

[0030] To make the technical problems, technical solutions and beneficial effects of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0031] Example 1

[0032] like Figure 1 As shown, the intelligent temperature-regulating 3D warp-knitted spacer fabric of this embodiment includes a first interval 1 and a second interval 2. The first interval 1 and the second interval 2 are arranged alternately to form a series of heat-insulating zones whose fabric structure changes with temperature.

[0033] Both the first interval 1 and the second interval 2 are composed of an upper and lower layer and an inner layer 7; the outer surface 3 of the upper and lower layers of the first interval is composed of temperature-sensitive differential shrinkage yarn, and the inner surface 5 of the upper and lower layers of the first interval is composed of conventional yarn; the outer surface 4 of the upper and lower layers of the second interval is composed of conventional yarn, and the inner surface 6 of the upper and lower layers of the second interval is composed of temperature-sensitive differential shrinkage yarn.

[0034] The intelligent temperature-regulating 3D warp-knitted spacer fabric is woven on an HDR6 DPLM double-needle-bed warp knitting machine with six guide bars. The six guide bars are arranged from front to back of the machine as follows: GB1 and GB2 are knitted only on the front needle bed; GB3 and GB4 are knitted sequentially on both the front and back needle beds; and GB5 and GB6 are knitted only on the back needle bed. The fabric is knitted using the open-knitting method, with a machine size of E18 and a knitting density of 24wpc.

[0035] Furthermore, the numbers of the padding yarns for each comb structure are as follows:

[0036] GB1:1-0 / 2-3 / /

[0037] GB2:2-3 / 1-0 / /

[0038] GB3:1-0 / 5-6 / /

[0039] GB4:1-0 / 5-6 / /

[0040] GB5:2-3 / 1-0 / /

[0041] GB6:1-0 / 2-3 / /

[0042] Furthermore, the raw materials and yarn selection are as follows:

[0043]

[0044]

[0045] GB1 and GB6 are threaded into 150D temperature-sensitive differential shrinkage yarns using a one-through-one-out cycle of 12 times; GB2 and GB5 are threaded into 150D regular yarns using a full-through cycle of 12 times; GB3 and GB4 are threaded into 0.10mm spandex yarns using a one-through-one-out cycle, to weave the first section 1 of the intelligent temperature-regulating 3D warp-knitted spacer fabric.

[0046] GB1 and GB6 are threaded into 150D temperature-sensitive differential shrinkage yarns using a full-threading cycle of 4 times; GB2 and GB5 are threaded into 150D regular yarns using a one-thread-one-empty cycle of 4 times; GB3 and GB4 are threaded into 0.10mm spandex yarns using a one-thread-one-empty cycle, to weave the second section 2 of the intelligent temperature-regulating 3D warp-knitted spacer fabric.

[0047] When the weather gets cold, the outer surface of the upper and lower layers of the first section, made of temperature-sensitive, differentially shrinking yarns, shrinks. The inner surface, composed of regular yarns, is stretched and bent inwards due to the shrinkage of the outer surface yarns, creating a fluffy first section that is conducive to the retention of still air. Similarly, in the second section, the inner surface of the upper and lower layers, also made of temperature-sensitive, differentially shrinking yarns, shrinks, while the outer surface, composed of regular yarns, is stretched and bent inwards due to the shrinkage of the outer surface yarns, creating a tightly connected second section. Because the shrinkage and stretching of the inner and outer surface yarns in the first and second sections causes the yarns to bend, the fabric structure becomes tighter, preventing air convection and heat loss, thus providing insulation.

[0048] Example 2

[0049] like Figure 1 As shown, the intelligent temperature-regulating 3D warp-knitted spacer fabric of this embodiment includes a first interval 1 and a second interval 2. The first interval 1 and the second interval 2 are arranged alternately to form a series of heat-insulating zones whose fabric structure changes with temperature.

[0050] Both the first interval 1 and the second interval 2 are composed of an upper and lower layer and an inner layer 7; the outer surface 3 of the upper and lower layers of the first interval is composed of a larger proportion of temperature-sensitive differential shrinkage yarn, and the inner surface 5 of the upper and lower layers of the first interval is composed of a smaller proportion of temperature-sensitive differential shrinkage yarn; the outer surface 4 of the upper and lower layers of the second interval is composed of a smaller proportion of temperature-sensitive differential shrinkage yarn, and the inner surface 6 of the upper and lower layers of the second interval is composed of a larger proportion of temperature-sensitive differential shrinkage yarn.

[0051] The intelligent temperature-regulating 3D warp-knitted spacer fabric is woven on an HDR6 DPLM double-needle-bed warp knitting machine with six guide bars. The six guide bars are arranged from front to back of the machine as follows: GB1 and GB2 are knitted only on the front needle bed; GB3 and GB4 are knitted sequentially on both the front and back needle beds; and GB5 and GB6 are knitted only on the back needle bed. The fabric is knitted using the open-knitting method, with a machine size of E18 and a knitting density of 24wpc.

[0052] Furthermore, the numbers of the padding yarns for each comb structure are as follows:

[0053] GB1:1-0 / 2-3 / /

[0054] GB2:2-3 / 1-0 / /

[0055] GB3:1-0 / 5-6 / /

[0056] GB4:1-0 / 5-6 / /

[0057] GB5:2-3 / 1-0 / /

[0058] GB6:1-0 / 2-3 / /

[0059] Furthermore, the raw materials and yarn selection are as follows:

[0060]

[0061] GB1 and GB6 are threaded with 100D temperature-sensitive differential shrinkage yarn in a one-through-one-out loop yarn threading method, for 12 cycles. Then, 300D temperature-sensitive differential shrinkage yarn is threaded with 4 cycles in a one-through-one-out loop yarn threading method. GB3 and GB4 are threaded with 0.10mm spandex yarn in a one-through-one-out yarn threading method to weave the first section 1 of the intelligent temperature-regulating 3D warp-knitted spacer fabric.

[0062] GB2 and GB5 are first threaded with 300D temperature-sensitive differential shrinkage yarn using a one-through-one-out threading method, and the cycle is repeated 12 times. Then, 100D temperature-sensitive differential shrinkage yarn is first threaded with a one-through-one-out cyclic threading method, and the cycle is repeated 4 times. GB3 and GB4 are threaded with 0.10mm spandex yarn using a one-through-one-out threading method to weave the second section 2 of the intelligent temperature-regulating 3D warp-knitted spacer fabric.

[0063] When the weather gets cold, the outer surface of the upper and lower layers of the first section, composed of a larger proportion of temperature-sensitive differentially shrinking yarns, shrinks. The inner surface, composed of a smaller proportion of temperature-sensitive differentially shrinking yarns, is stretched and forms a curve facing inwards due to the shrinkage of the outer surface yarns, creating a fluffy first section that is conducive to the retention of still air. Similarly, in the second section, the inner surface of the upper and lower layers, also composed of a larger proportion of temperature-sensitive differentially shrinking yarns, shrinks, while the outer surface, composed of a smaller proportion of temperature-sensitive differentially shrinking yarns, is stretched and forms a curve facing outwards due to the shrinkage of the outer surface yarns, creating a tightly connected second section. Because the shrinkage and stretching of the inner and outer surface yarns in the first and second sections causes the yarns to bend, the fabric structure becomes tighter, preventing air convection and heat loss, thus providing insulation.

[0064] Example 3

[0065] like Figure 1 As shown, the intelligent temperature-regulating 3D warp-knitted spacer fabric of this embodiment includes a first interval 1 and a second interval 2. The first interval 1 and the second interval 2 are arranged alternately to form a series of heat-insulating zones whose fabric structure changes with temperature.

[0066] Both the first interval 1 and the second interval 2 are composed of an upper and lower layer and an inner layer 7; the outer surface 3 of the upper and lower layers of the first interval is composed of hollow fiber yarn with thermal expansion and contraction, and the inner surface 5 of the upper and lower layers of the first interval is composed of conventional yarn; the outer surface 4 of the upper and lower layers of the second interval is composed of conventional yarn, and the inner surface 6 of the upper and lower layers of the second interval is composed of hollow fiber yarn with thermal expansion and contraction.

[0067] The intelligent temperature-regulating 3D warp-knitted spacer fabric is woven on an HDR6 DPLM double-needle-bed warp knitting machine with six guide bars. The six guide bars are arranged from front to back of the machine as follows: GB1 and GB2 are knitted only on the front needle bed; GB3 and GB4 are knitted sequentially on both the front and back needle beds; and GB5 and GB6 are knitted only on the back needle bed. The fabric is knitted using the open-knitting method, with a machine size of E18 and a knitting density of 24wpc.

[0068] Furthermore, the numbers of the padding yarns for each comb structure are as follows:

[0069] GB1:1-0 / 2-3 / /

[0070] GB2:2-3 / 1-0 / /

[0071] GB3:1-0 / 5-6 / /

[0072] GB4:1-0 / 5-6 / /

[0073] GB5:2-3 / 1-0 / /

[0074] GB6:1-0 / 2-3 / /

[0075] Furthermore, the raw materials and yarn selection are as follows:

[0076]

[0077] GB1 and GB6 are threaded into 150D cold-expanding and heat-shrinking hollow fiber yarns in a 12-cycle threading method with one thread and one empty thread; GB2 and GB5 are threaded into 150D regular yarns in a 12-cycle threading method with full threading; GB3 and GB4 are threaded into 0.10mm spandex yarns in a 1-cycle threading method with one thread and one empty thread, to weave the first section 1 of the intelligent temperature-regulating 3D warp-knitted spacer fabric.

[0078] GB1 and GB6 are threaded into 150D cold-expansion and heat-shrinkage hollow fiber yarns in a full-threading cycle of 4 times; GB2 and GB5 are threaded into 150D regular yarns in a one-thread-one-empty cycle of 4 times; GB3 and GB4 are threaded into 0.10mm spandex yarns in a one-thread-one-empty cycle, to weave the second section 2 of the intelligent temperature-regulating 3D warp-knitted spacer fabric.

[0079] When the weather gets cold, the outer surface 3 of the upper and lower layers of the first section, composed of hollow fiber yarns that expand and contract with temperature, becomes fluffy and dense. The inner surface, composed of conventional yarns, is compressed by the expansion of the outer surface yarns, causing it to bend inwards, thus forming a fluffy first section that is conducive to the storage of still air. Similarly, the inner surface of the upper and lower layers of the second section, composed of hollow fiber yarns that expand and contract with temperature, becomes fluffy and dense. The outer surface, composed of conventional yarns, is compressed by the expansion of the outer surface yarns, causing it to bend outwards, thus forming a tightly connected second section. Because the expansion and compression of the inner and outer surface yarns in the first and second sections causes the inner and outer surface yarns to bend, the fabric structure becomes tighter, preventing air convection and heat loss, thus providing warmth.

Claims

1. Intelligent temperature-regulating 3D warp-knitted spacer fabric, characterized in that: The system includes a first section and a second section, each comprising an upper layer, a lower layer, and an inner layer. The outer surfaces of the upper and lower layers of the first section are composed of temperature-sensitive intelligent yarn, while the inner surfaces of the upper and lower layers are composed of conventional yarn. Similarly, the outer surfaces of the upper and lower layers of the second section are composed of conventional yarn, while the inner surfaces of the upper and lower layers are composed of temperature-sensitive intelligent yarn. The temperature-sensitive intelligent yarn is either temperature-sensitive differential shrinkage yarn or cold-expanding / heat-shrinking hollow fiber yarn. When the outside temperature is low, the inner and outer surfaces of the upper and lower layers, which are made of temperature-sensitive intelligent yarn, shrink in different sections. The inner and outer surfaces, which are made of conventional yarn, are stretched and formed to face the inner or outer surface due to the shrinkage of the yarn, creating fluffy sections that are conducive to the storage of still air. At the same time, the shrinkage and stretching of the yarn causes the yarn to bend, making the fabric structure tighter, preventing air convection and heat loss, and playing a role in keeping warm.

2. The intelligent temperature-regulating 3D warp-knitted spacer fabric as described in claim 1, characterized in that: The temperature-sensitive, differentially shrinking yarn is made of polyester, nylon, or polypropylene.

3. The intelligent temperature-regulating 3D warp-knitted spacer fabric as described in claim 1, characterized in that: The cold-expanding and heat-shrinking hollow fiber yarn is made of polyester, nylon, or polypropylene.

4. The intelligent temperature-regulating 3D warp-knitted spacer fabric as described in claim 1, characterized in that: The inner layer is made of elastic yarn with an elastic elongation greater than 300%.

5. The intelligent temperature-regulating 3D warp-knitted spacer fabric as described in claim 1, characterized in that: The first interval and the second interval are arranged alternately.

6. The method for preparing the intelligent temperature-regulating 3D warp-knitted spacer fabric according to any one of claims 1 to 5, characterized in that: The intelligent temperature-regulating 3D warp-knitted spacer fabric is woven on a double-needle-bed warp knitting machine with at least 6 guide bars. The 6 guide bars, from front to back of the machine, are: guide bars GB1 and GB2 that are woven only on the front needle bed, guide bars GB5 and GB6 that are woven only on the rear needle bed, and guide bars GB3 and GB4 that are woven in loops sequentially on the front and rear needle beds.

7. The method for preparing an intelligent temperature-regulating 3D warp-knitted spacer fabric as described in claim 6, characterized in that: GB1 uses a one-through-one-open threading method to thread temperature-sensitive intelligent yarn in the first section, and a full-through threading method in the second section; GB2 uses a full-through threading method to thread regular yarn in the first section, and a one-through-one-open threading method in the second section, with the yarn only looped at the front needle mattress to form the upper layer of the intelligent temperature-regulating 3D warp-knitted spacer fabric. GB6 uses a one-through-one-open threading method to thread temperature-sensitive intelligent yarn in the first section and a full-through method in the second section. GB5 uses a full-through method to thread regular yarn in the first section and a one-through-one-open method in the second section. It only forms loops in the back needle mattress yarn to form the lower layer of the intelligent temperature-regulating 3D warp-knitted spacer fabric. GB3 and GB4 are threaded into elastic yarns with an elastic elongation greater than 300% using a one-through-one-open threading method. The yarns are alternately padded on the front and rear needle beds to form loops, thus forming the inner layer of the intelligent temperature-regulating 3D warp-knitted spacer fabric.

8. The method for preparing intelligent temperature-regulating 3D warp-knitted spacer fabric as described in claim 6, characterized in that: GB1 uses a one-through-one-open threading method to thread 50-100D temperature-sensitive intelligent yarn in the first section, and a one-through-one-open threading method to thread 150-300D temperature-sensitive intelligent yarn in the second section; GB2 uses a one-through-one-open threading method to thread 150-300D temperature-sensitive intelligent yarn in the first section, and a one-through-one-open threading method to thread 50-100D temperature-sensitive intelligent yarn in the second section, forming loops only in the front needle mattress yarn to form the upper layer of the intelligent temperature-regulating 3D warp-knitted spacer fabric. GB6 uses a one-through-one-open yarn threading method to insert 50-100D temperature-sensitive intelligent yarn in the first section, and a one-through-one-open yarn threading method to insert 150-300D temperature-sensitive intelligent yarn in the second section; GB5 uses a one-through-one-open yarn threading method to insert 150-300D temperature-sensitive intelligent yarn in the first section, and a one-through-one-open yarn threading method to insert 50-100D temperature-sensitive intelligent yarn in the second section, forming loops only at the back needle mattress yarn to form the lower layer of the intelligent temperature-regulating 3D warp-knitted spacer fabric. GB3 and GB4 are threaded into elastic yarns with an elastic elongation greater than 300% using a one-through-one-open threading method. The yarns are alternately padded on the front and rear needle beds to form loops, thus forming the inner layer of the intelligent temperature-regulating 3D warp-knitted spacer fabric.

9. The method for preparing the intelligent temperature-regulating 3D warp-knitted spacer fabric as described in claim 6, characterized in that: GB1 and GB6 have temperature-sensitive intelligent yarn inserted in the first section and regular yarn inserted in the second section; GB2 and GB5 have regular yarn inserted in the first section and temperature-sensitive intelligent yarn inserted in the second section, forming loops only in the front and back needle padding yarns to form the upper and lower layers of the intelligent temperature-regulating 3D warp-knitted spacer fabric. The specific padding yarn numbers are: GB1, GB6: (1-0, 1-2). 3 / (2-3,2-1) 3 / / , GB2, GB5: (2-3, 2-1) 3 / (1-0,1-2) 3 / / ; GB3 and GB4 are threaded into elastic yarns with an elastic elongation greater than 300% using a one-through-one-open threading method, and are alternately padded in the front and rear needle beds to form loops, forming the inner layer of the intelligent temperature-regulating 3D warp-knitted spacer fabric. The specific padded yarn numbers are: GB3 and GB4: 1-0 / 5-6 / / .

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