Multifunctional heating temperature-locking multilayer wool composite fabric and preparation method thereof

Abstract

The invention discloses a multifunctional heating temperature-locking multilayer wool composite fabric and a preparation method thereof. The multilayer wool composite fabric sequentially comprises an inner layer, an interlayer and an outer layer, the inner layer is a heat-conducting wool layer, the outer layer is a heat-insulating wool layer, and the interlayer is conductive wires. The preparation method comprises the following steps: pretreating a wool yarn raw material, padding the wool yarn raw material into a slurry barrel filled with a far infrared heat-conducting nano material or a far infrared heat-insulating nano material, repeating for 2-3 times, cleaning and drying to obtain heat-conducting wool yarn and heat-insulating wool yarn; the heat-conducting wool yarn, the heat-insulating wool yarn and the conductive yarn are manufactured and formed in a weaving mode according to the organization structure designed by a product, and the multi-layer wool composite fabric is obtained. After being externally connected with a power supply, the fabric can rapidly emit heat, heat generated by the conductive heating wires can be rapidly transmitted to all parts of the fabric through the inner-layer heat conduction wool, heat dissipation is prevented through the outer-layer heat insulation wool, and long-time warm keeping and temperature locking are achieved.

Description

Technical Field

[0001] The invention relates to a multifunctional heating and temperature-locking multi-layer wool composite fabric and a preparation method thereof, and belongs to the technical field of textile and garment processing. Background Art

[0002] As a natural animal fiber widely recognized in the market, wool is one of the preferred materials for making textiles. Its products have become the key material for winter warm clothing due to its natural softness and warmth-keeping properties. However, wool has limited warmth-keeping ability. Once it reaches a certain purity, it can only be improved by increasing the thickness, which is contrary to the lightness and comfort that consumers pursue. Therefore, adding functionality to wool products has become a necessary path for its industrial progress. At present, the functional finishing of wool fabrics mainly focuses on dyeing, anti-pilling and anti-static properties, while research on adding heating functions is still rare. As an effective means of keeping warm, electrothermal technology can significantly improve the warmth-keeping performance of clothing and make up for the shortcomings of wool products in terms of heat preservation. In addition, far-infrared ceramic powder coating technology can transfer or isolate temperature by absorbing and reflecting heat energy. Applying it to wool products can achieve both rapid heat conduction and long-term temperature lock. In contrast, the electric heating clothing in other patents mostly uses pure fiber materials, and its feel and style are not as good as wool products. These garments have problems of fast power consumption, low thermal efficiency and short heating time in low temperature environments, which will affect the wearer's comfort and heating effect, and ultimately lead to an unsatisfactory wearing experience. Summary of the invention

[0003] The technical problem to be solved by the present invention is: the problem that cashmere and wool clothing have poor thermal and hygroscopic comfort in a low-temperature environment.

[0004] In order to solve the above problems, the present invention provides a multifunctional heating and temperature-locking multi-layer wool composite fabric, which comprises an inner layer, an interlayer and an outer layer in sequence, wherein the inner layer is a heat-conducting wool layer, the outer layer is a heat-insulating wool layer, and the interlayer is a conductive thread;

[0005] The inner thermally conductive wool layer is made of wool that has been treated with far-infrared thermally conductive nanomaterials, and is used to transfer heat to various parts of the fabric; the inner layer has relatively excellent thermal conductivity and can quickly transfer heat to various parts of the fabric;

[0006] The outer insulating wool layer is made of wool that has been treated with far-infrared insulating nanomaterials to prevent heat from dissipating outwards; the outer layer has a relatively excellent insulation effect, which can prevent heat from dissipating outwards, thereby achieving a warming and temperature-locking effect;

[0007] The conductive wires of the core layer generate heat through an external power source, that is, electrically induced heating.

[0008] Preferably, the wool base used for the inner layer and the outer layer is pure wool yarn, which is pre-treated by plasma treatment or oxidation treatment before use.

[0009] More preferably, the specification of the pure wool yarn is 26 to 60.

[0010] Preferably, the far-infrared heat-conducting nanomaterial used in the inner heat-conducting wool layer is aluminum oxide, with a specification of 20nm to 30nm.

[0011] Preferably, the far-infrared heat-insulating nanometer material used in the outer heat-insulating wool layer is zirconium oxide, with a specification of 20nm to 30nm.

[0012] Preferably, the conductive wire of the interlayer is made of silver-plated conductive wire, all-silver fiber yarn or graphene conductive wire, with a specification of 40D to 140D.

[0013] The present invention also provides a method for preparing the multifunctional heating and temperature-locking multi-layer wool composite fabric, comprising the following steps:

[0014] Step 1): the wool yarn raw material is pre-treated and then dipped into a slurry barrel filled with far-infrared thermal conductive nanomaterials or far-infrared thermal insulating nanomaterials, and the process is repeated 2-3 times, followed by washing and drying to obtain thermal conductive wool yarn and thermal insulating wool yarn;

[0015] Step 2): The thermal conductive wool yarn, the thermal insulating wool yarn and the conductive yarn are woven into a shape according to the organizational structure of the product design to obtain a multi-layer wool composite fabric.

[0016] Preferably, the tissue structure includes at least one of a lining tissue, a double tissue, and a multi-layer tissue. The final product applications include but are not limited to electric heated towel blankets, heated underwear, warm vests, and the like.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. Multi-dimensional and multi-mode heating: The combination of electric heating and far-infrared thermal conductive nanomaterials, supplemented by the plump characteristics of wool itself, achieves multi-dimensional and multi-mode heating with a single fabric.

[0019] 2. Long-term warmth retention and reduced energy consumption: The heat-insulating nanomaterials used in the outermost layer isolate the heat generated by the inner layer from dissipating outward, so that the generated heat is permanently locked between the contact surface between the internal heating layer and the skin, achieving long-term warmth retention while reducing energy consumption.

[0020] 3. Provide new ideas for functional finishing of wool products: While the functional finishing of wool yarn and wool blended yarn has focused on anti-static, anti-felting, and anti-pilling for many years, a new idea for the intelligent functional finishing of wool yarn in active heat generation has been proposed, which is an expansion and extension of wool products in the intelligent textile industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A conceptual diagram of the layers of the multifunctional heating and temperature-locking multi-layer wool composite fabric provided by the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the inlay pad in Example 1;

[0023] Figure 3 is a schematic diagram of the dual organizational structure in Example 2;

[0024] Figure 4 This is a schematic diagram of the circuit diagram of the conductive yarn implanted in the electric heated towel blanket in Example 3;

[0025] Figure 5 This is a schematic diagram of a circuit diagram for implanting conductive yarn into heated underwear in Example 4;

[0026] Figure 6 This is a schematic diagram of the circuit diagram of the conductive yarn implanted in the warm vest in Example 5. DETAILED DESCRIPTION

[0027] In order to make the present invention more clearly understood, preferred embodiments are described in detail below with reference to the accompanying drawings.

[0028] like Figure 1 As shown, the multifunctional heating and temperature-locking multi-layer wool composite fabric provided by the present invention comprises an inner layer 11, an interlayer 13, and an outer layer 12. The inner layer 11 is a thermally conductive wool layer, the outer layer 12 is an insulating wool layer, and the interlayer 13 is a conductive wire; the thermally conductive wool layer of the inner layer 11 is made of wool after being finished with far-infrared thermally conductive nanomaterials, and is used to transfer heat to various parts of the fabric; the insulating wool layer of the outer layer 12 is made of wool after being finished with far-infrared thermally insulating nanomaterials, and is used to prevent heat from dissipating to the outside; the conductive wire of the core layer 13 generates heat through an external power supply, that is, electrothermal heating.

[0029] Example 1

[0030] A preparation method of a multifunctional heating and temperature-locking multi-layer wool composite fabric:

[0031] After plasma treatment, 48 pure wool yarns were immersed in slurry barrels containing nano-alumina and nano-zirconia for 1 hour, then washed and dried, and repeated 2 to 3 times. The specific formula of the slurry is as follows:

[0032] The mass percentage concentration ratio of thermal conductive far-infrared nano ceramic powder slurry is: 30nm alumina 5%, 10g / L additive 15%, binder 3%, dispersant 2%, water 75%;

[0033] The mass percentage concentration ratio of the thermal insulation far-infrared nano ceramic powder slurry is: 20nm zirconium oxide 3%, 10g / L additive 15%, binder 3%, dispersant 2%, water 77%;

[0034] like Figure 2 As shown, the heat-conducting wool yarn is used as the lining yarn 21, the heat-insulating wool yarn is used as the face yarn 22, and the conductive yarn is used as the padding yarn 23, and the heat-generating and warm-keeping fabric is woven with the added yarn padding structure.

[0035] Example 2

[0036] A preparation method of a multifunctional heating and temperature-locking multi-layer wool composite fabric:

[0037] After plasma treatment, 60 pure wool yarns were immersed in slurry barrels containing nano-alumina and nano-zirconia for 0.5 hours, then washed and dried, and repeated twice. The specific formula of the slurry is as follows:

[0038] The mass percentage concentration ratio of thermal conductive far-infrared nano ceramic powder slurry is: 30nm alumina 3%, 10g / L additive 15%, binder 3%, dispersant 2%, water 77%;

[0039] The mass percentage concentration ratio of the thermal insulation far-infrared nano ceramic powder slurry is: 20nm zirconium oxide 3%, 10g / L additive 15%, binder 3%, dispersant 2%, water 77%;

[0040] like Figure 3 As shown, heat-conducting wool yarn is used as the surface warp 31, heat-insulating wool yarn is used as the surface weft 32, and conductive yarn is used as the inner warp or inner weft 33, and a heat-generating and warm fabric is woven in a double-layer structure.

[0041] Example 3

[0042] A method for manufacturing an electric heated towel blanket using the multi-layer wool composite fabric prepared in Example 1, the specific method is as follows:

[0043] according to Figure 4 The electric blanket is woven as shown, and the conductive threads are arranged in a circuit diagram. The conductive threads are woven between two layers of wool yarn in the form of lining yarn, and a power switch is connected to the end 41 of the conductive threads.

[0044] Example 4

[0045] A method for manufacturing an electric heated towel blanket using the multi-layer wool composite fabric prepared in Example 1, the specific method is as follows:

[0046] according to Figure 5 The heating underwear plate is woven as shown in the figure, and the conductive thread is arranged in the circuit diagram. The conductive thread is woven between two layers of wool yarn in the form of lining yarn, and a power switch is connected at the cuff 51.

[0047] Example 5

[0048] A method for manufacturing an electric heated towel blanket using the multi-layer wool composite fabric prepared in Example 2, the specific method is as follows:

[0049] according to Figure 6 The vest is woven as shown, and the conductive thread is arranged in the circuit diagram. The conductive thread is woven between two layers of wool yarn in the form of lining yarn, and a power switch is connected to both ends of the conductive thread 61 in the vest.

[0050] The various materials and specification parameters used in Examples 1-5, as well as the yarn specifications and fabric structures used are shown in Table 1.

[0051] Table 1

[0052]

[0053]

Claims

1. A multifunctional heating and temperature-locking multi-layer wool composite fabric, characterized in that: It comprises an inner layer (11), an interlayer (13), and an outer layer (12) in sequence, wherein the inner layer (11) is a heat-conducting wool layer, the outer layer (12) is a heat-insulating wool layer, and the interlayer (13) is a conductive thread; The heat-conducting wool layer of the inner layer (11) is made of wool that has been treated with far-infrared heat-conducting nanomaterials, and is used to transfer heat to various parts of the fabric; The heat-insulating wool layer of the outer layer (12) is made of wool that has been treated with far-infrared heat-insulating nanomaterials, and is used to prevent heat from dissipating outwards; The conductive wires of the core layer (13) generate heat through an external power source, that is, electrically induced heating.

2. The multifunctional heating and temperature-locking multi-layer wool composite fabric according to claim 1, characterized in that: The wool base used in the inner layer (1) and the outer layer (2) is pure wool yarn, which is pre-treated by plasma treatment or oxidation treatment before use.

3. The multifunctional heating and temperature-locking multi-layer wool composite fabric according to claim 2, characterized in that: The specification of the pure wool yarn is 26 to 60.

4. The multifunctional heating and temperature-locking multi-layer wool composite fabric according to claim 1, characterized in that: The far-infrared heat-conducting nanometer material used in the heat-conducting wool layer of the inner layer (11) is aluminum oxide, and the specification is 20nm to 30nm.

5. The multifunctional heating and temperature-locking multi-layer wool composite fabric according to claim 1, characterized in that: The far-infrared heat-insulating nanometer material used in the heat-insulating wool layer of the outer layer (12) is zirconium oxide, and the specification is 20nm-30nm.

6. The multifunctional heating and temperature-locking multi-layer wool composite fabric according to claim 1, characterized in that: The conductive wire of the interlayer (13) is made of silver-plated conductive wire, all-silver fiber yarn or graphene conductive wire, and has a specification of 40D to 140D.

7. The method for preparing the multifunctional heating and temperature-locking multi-layer wool composite fabric according to any one of claims 1 to 6, characterized in that: The following steps are involved: Step 1): the wool yarn raw material is pre-treated and then dipped into a slurry barrel filled with far-infrared thermal conductive nanomaterials or far-infrared thermal insulating nanomaterials, and the process is repeated 2-3 times, followed by washing and drying to obtain thermal conductive wool yarn and thermal insulating wool yarn; Step 2): The thermal conductive wool yarn, the thermal insulating wool yarn and the conductive yarn are woven into a shape according to the organizational structure of the product design to obtain a multi-layer wool composite fabric.

8. The method for preparing the multifunctional heating and temperature-locking multi-layer wool composite fabric according to claim 7, characterized in that: The tissue structure includes at least one of a plating lining tissue, a double tissue, and a multi-layer tissue.

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