Temperature-adjustable composite textured yarn, preparation method and temperature-adjustable fabric
Through the blending of modified polyester fiber and cotton fiber and the temperature-sensitive gel latex modification technology, temperature-adjustable composite deformation yarns and fabrics are prepared, which solves the problem of thermal insulation and breathability balance of existing fabrics under different temperature conditions, and achieves the comfort adjustment of the fabric and improves environmental performance.
Patent Information
- Application Number
- CN202510010831.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2025-04-25
AI Technical Summary
Existing bed fabrics are difficult to automatically adapt to the thermal insulation and breathable balance required by the human body under different temperature conditions, and are complex in processing, high in cost and limited environmental protection performance.
Modified polyester fiber and cotton fiber are blended, and the polyester fiber is modified through a temperature-sensitive gel latex to form a composite deformed yarn, and a temperature-adjustable fabric is prepared by heat setting treatment.
It realizes comfortable temperature adjustment of the fabric under different temperature conditions, improves breathable and moisture permeable performance, enhances the softness and environmental protection performance of the fabric, and reduces processing complexity and cost.
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Abstract
Description
Technical Field
[0001] The invention relates to the technical field of textile processing, and in particular to a temperature-adjustable composite deformation yarn, a preparation method and a temperature-adjustable fabric. Background Art
[0003] Currently, common bedding fabrics on the market mainly rely on physical fiber blending or chemical finishing technology to enhance the warmth and breathability of the fabrics, but such methods usually find it difficult to automatically adapt to the thermal insulation and breathability balance required by the human body under different temperature conditions. In addition, existing traditional processes are often complex to process, costly, and have limited environmental performance. Summary of the invention
[0004] In order to solve the problems in the prior art, the present invention provides a temperature-adjustable composite textured yarn, a preparation method and a temperature-adjustable fabric, so as to improve the temperature control performance of the composite textured yarn.
[0005] The first aspect of the present invention is to provide a temperature-adjustable composite textured yarn, which adopts the following technical solution: A temperature-adjustable composite deformation yarn, comprising modified polyester fiber and cotton fiber, wherein the weight proportion of the modified polyester fiber in the yarn is 15-25%, and the balance is cotton fiber; the modified polyester fiber is obtained by the following modification method: a thermosensitive gel emulsion, a crosslinking agent I, and a catalyst are stirred and dissolved to obtain a modified emulsion, the polyester fiber is immersed in the modified emulsion for reaction for 15-20 minutes, the polyester fiber is taken out and baked at 80±3°C for 10-15 minutes, the above operation is repeated, the polyester fiber is immersed in the modified emulsion for 3-5 times, and the polyester fiber after the last baking is baked at 160°C for 5 minutes to obtain the modified polyester fiber.
[0006] In a preferred embodiment, the weight ratio of the thermosensitive gel emulsion, the crosslinking agent and the catalyst is (10-15):(2.8-4.1):1.
[0007] In a preferred embodiment, the crosslinking agent I is butanetetracarboxylic acid.
[0008] In a preferred embodiment, the thermosensitive gel emulsion is obtained by the following preparation method: 0.5-0.7 mol of a surfactant is added to water and stirred to dissolve, then 15-20 mol of a thermosensitive monomer and 1-5 mol of a hydrophilic monomer are added, and after dissolving for 15-20 min, 0.8-1.0 mol of a crosslinking agent II is added and stirred, and then 0.03-0.05 mol of an initiator is added at a temperature of 70±2°C, and the reaction is carried out under a nitrogen atmosphere for 5-6 h, followed by centrifugation and dialysis to obtain a thermosensitive gel emulsion.
[0009] In a preferred embodiment, the temperature-sensitive monomer is composed of N-isopropylacrylamide and 2-(2-methoxyethoxy)ethyl methacrylate in a molar ratio of 0.5:(0.8-1.6).
[0010] In a preferred embodiment, the hydrophilic monomer is ethylene glycol monoethyl ether acetate.
[0011] In a preferred embodiment, the crosslinking agent II is 2-mercaptobenzoic acid.
[0012] The second aspect of the present invention is to provide a method for preparing the above-mentioned adjustable temperature composite deformation yarn, comprising the following steps: blending modified polyester fiber and cotton fiber to obtain a blended yarn, and then heat-setting the blended yarn at 175-180°C for 6-8 minutes to obtain a composite deformation yarn.
[0013] The third aspect of the present invention is to provide a temperature-adjustable fabric, which is obtained by weaving the composite textured yarn obtained above.
[0014] In summary, the present invention has the following beneficial effects: 1. After the polyester fiber is modified by the thermosensitive gel emulsion in the present application, when the fabric is stimulated by the external environment, such as when the external temperature rises or falls, the microgel shrinks or swells, and the volume decreases or increases accordingly, so that the pores between the yarns in the fabric change, and the channels for water molecules and heat to enter and exit open and close, so as to achieve the fabric's adjustment of the comfortable temperature, that is, the fabric's air permeability and moisture permeability are adjusted by changing the pore size of the fabric, so as to achieve the fabric's comfort adjustment, and the polymer layer formed by the microgel emulsion under the joint action of the crosslinking agent and the catalyst is cross-linked on the surface of the polyester fiber, which can well absorb water molecules from the external environment, thereby forming a hydration layer, which has the effect of inhibiting bacterial attachment.
[0015] 2. In the present application, when the thermosensitive gel is prepared by reacting two thermosensitive monomers, N-isopropylacrylamide and 2-(2-methoxyethoxy)ethyl methacrylate, with ethylene glycol monoethyl ether acetate, it can ensure the softness of the fabric after being cross-linked on the surface of the polyester fiber. DETAILED DESCRIPTION
[0016] The present invention is further described in detail below with reference to the embodiments.
[0017] The raw materials used in the preparation examples, embodiments and comparative examples of this application are all commercially available.
[0018] Preparation Example 1.1 A method for preparing a thermosensitive gel emulsion comprises the following preparation steps: 0.5 mol of sodium dodecyl sulfate was added to 7 L of water and stirred to dissolve, then 15 mol of a thermosensitive monomer and 1 mol of a hydrophilic monomer ethylene glycol monoethyl ether acetate were added, and after dissolving for 15 min, 0.8 mol of a cross-linking agent 2-mercaptobenzoic acid was added and stirred, and then 0.03 mol of ammonium persulfate was added at a temperature of 70±2°C. After reacting for 5 h under a nitrogen atmosphere, the mixture was centrifuged and dialyzed to obtain a thermosensitive gel emulsion, wherein the thermosensitive monomer was composed of N-isopropylacrylamide and 2-(2-methoxyethoxy)ethyl methacrylate in a molar ratio of 0.5:0.8.
[0019] Preparation Example 1.2 A method for preparing a thermosensitive gel emulsion comprises the following preparation steps: 0.6 mol of sodium dodecyl sulfate was added to 7 L of water and stirred to dissolve, then 18 mol of a thermosensitive monomer and 3 mol of a hydrophilic monomer ethylene glycol monoethyl ether acetate were added, and after dissolving for 20 min, 0.9 mol of a cross-linking agent 2-mercaptobenzoic acid was added and stirred, and then 0.04 mol of ammonium persulfate was added at a temperature of 70±2°C. After reacting for 6 h under a nitrogen atmosphere, the mixture was centrifuged and dialyzed to obtain a thermosensitive gel emulsion, wherein the thermosensitive monomer was composed of N-isopropylacrylamide and 2-(2-methoxyethoxy)ethyl methacrylate in a molar ratio of 0.5:0.8.
[0020] Preparation Example 1.3 A method for preparing a thermosensitive gel emulsion comprises the following preparation steps: 0.7 mol of sodium dodecyl sulfate was added to 7 L of water and stirred to dissolve, then 20 mol of a thermosensitive monomer and 5 mol of a hydrophilic monomer ethylene glycol monoethyl ether acetate were added, and after dissolving for 20 min, 1.0 mol of a cross-linking agent 2-mercaptobenzoic acid was added and stirred, and then 0.05 mol of ammonium persulfate was added at a temperature of 70±2°C. After reacting for 6 h under a nitrogen atmosphere, the mixture was centrifuged and dialyzed to obtain a thermosensitive gel emulsion, wherein the thermosensitive monomer was composed of N-isopropylacrylamide and 2-(2-methoxyethoxy)ethyl methacrylate in a molar ratio of 0.5:0.8.
[0021] Preparation Example 1.4 A method for preparing a thermosensitive gel emulsion comprises the following preparation steps: 0.6 mol of sodium dodecyl sulfate was added to 7 L of water and stirred to dissolve, then 18 mol of a thermosensitive monomer and 3 mol of a hydrophilic monomer ethylene glycol monoethyl ether acetate were added, and after dissolving for 20 min, 0.9 mol of a cross-linking agent 2-mercaptobenzoic acid was added and stirred, and then 0.04 mol of ammonium persulfate was added at a temperature of 70±2°C. After reacting for 6 h under a nitrogen atmosphere, the mixture was centrifuged and dialyzed to obtain a thermosensitive gel emulsion, wherein the thermosensitive monomer was composed of N-isopropylacrylamide and 2-(2-methoxyethoxy)ethyl methacrylate in a molar ratio of 0.5:1.2.
[0022] Preparation Example 1.5 A method for preparing a thermosensitive gel emulsion comprises the following preparation steps: 0.6 mol of sodium dodecyl sulfate was added to 7 L of water and stirred to dissolve, then 18 mol of a thermosensitive monomer and 3 mol of a hydrophilic monomer ethylene glycol monoethyl ether acetate were added, and after dissolving for 20 min, 0.9 mol of a cross-linking agent 2-mercaptobenzoic acid was added and stirred, and then 0.04 mol of ammonium persulfate was added at a temperature of 70±2°C. After reacting for 6 h under a nitrogen atmosphere, the mixture was centrifuged and dialyzed to obtain a thermosensitive gel emulsion, wherein the thermosensitive monomer was composed of N-isopropylacrylamide and 2-(2-methoxyethoxy)ethyl methacrylate in a molar ratio of 0.5:1.6.
[0023] Comparative Preparation Example 1.1 A method for preparing a thermosensitive gel emulsion is different from that of Preparation Example 1.2 in that only N-isopropylacrylamide is used as the thermosensitive monomer, and the rest are the same as those of Preparation Example 1.2.
[0024] Comparative Preparation Example 1.2 A method for preparing a thermosensitive gel emulsion is different from that of Preparation Example 1.2 in that only 2-(2-methoxyethoxy)ethyl methacrylate is used as the thermosensitive monomer, and the rest are the same as those of Preparation Example 1.2.
[0025] Preparation Example 2.1 A method for preparing a modified polyester fiber comprises the following preparation steps: The thermosensitive gel emulsion obtained in Preparation Example 1.1, the cross-linking agent butanetetracarboxylic acid, and the catalyst sodium hypophosphite are stirred and dissolved to obtain a modified emulsion, and the polyester fiber is immersed in the modified emulsion for reaction for 15 minutes, then the polyester fiber is taken out and baked at 80±3°C for 10 minutes, and the above operation is repeated. After the polyester fiber is immersed in the modified emulsion for 3 times, the polyester fiber after the last baking is baked at 160°C for 5 minutes to obtain a modified polyester fiber; wherein the weight ratio of the thermosensitive gel emulsion, the cross-linking agent butanetetracarboxylic acid, and the catalyst sodium hypophosphite is 10:2.8:1.
[0026] Preparation Example 2.2 A method for preparing a modified polyester fiber comprises the following preparation steps: The thermosensitive gel emulsion obtained in Preparation Example 1.1, the cross-linking agent butanetetracarboxylic acid, and the catalyst sodium hypophosphite are stirred and dissolved to obtain a modified emulsion, and the polyester fiber is immersed in the modified emulsion for reaction for 20 minutes, then the polyester fiber is taken out and baked at 80±3°C for 15 minutes, and the above operation is repeated. After the polyester fiber is immersed in the modified emulsion for 3 times, the polyester fiber after the last baking is baked at 160°C for 5 minutes to obtain a modified polyester fiber; wherein the weight ratio of the thermosensitive gel emulsion, the cross-linking agent butanetetracarboxylic acid, and the catalyst sodium hypophosphite is 12:3.5:1.
[0027] Preparation Example 2.3 A method for preparing a modified polyester fiber comprises the following preparation steps: The thermosensitive gel emulsion obtained in Preparation Example 1.1, the cross-linking agent butanetetracarboxylic acid, and the catalyst sodium hypophosphite are stirred and dissolved to obtain a modified emulsion, and the polyester fiber is immersed in the modified emulsion for reaction for 20 minutes, then the polyester fiber is taken out and baked at 80±3°C for 15 minutes, and the above operation is repeated. After the polyester fiber is immersed in the modified emulsion for 3 times, the polyester fiber after the last baking is baked at 160°C for 5 minutes to obtain a modified polyester fiber; wherein the weight ratio of the thermosensitive gel emulsion, the cross-linking agent butanetetracarboxylic acid, and the catalyst sodium hypophosphite is 15:4.1:1.
[0028] Preparation Example 2.4 A method for preparing modified polyester fiber, which is different from Preparation Example 2.2 in that the thermosensitive gel emulsion adopts the thermosensitive gel emulsion obtained in Preparation Example 1.2, and the rest is the same as Preparation Example 2.2.
[0029] Preparation Example 2.5 A method for preparing modified polyester fiber, which is different from Preparation Example 2.2 in that the thermosensitive gel emulsion adopts the thermosensitive gel emulsion obtained in Preparation Example 1.3, and the rest is the same as Preparation Example 2.2.
[0030] Preparation Example 2.6 A method for preparing modified polyester fiber, which is different from Preparation Example 2.2 in that the thermosensitive gel emulsion adopts the thermosensitive gel emulsion obtained in Preparation Example 1.4, and the rest is the same as Preparation Example 2.2.
[0031] Preparation Example 2.7 A method for preparing modified polyester fiber, which is different from Preparation Example 2.2 in that the thermosensitive gel emulsion adopts the thermosensitive gel emulsion obtained in Preparation Example 1.5, and the rest is the same as Preparation Example 2.2.
[0032] Comparative Preparation Example 2.1 A method for preparing modified polyester fiber, which is different from Preparation Example 2.2 in that the thermosensitive gel emulsion adopts the thermosensitive gel emulsion obtained in Comparative Preparation Example 1.1, and the rest is the same as Preparation Example 2.2.
[0033] Comparative Preparation Example 2.2 A method for preparing modified polyester fiber, which is different from Preparation Example 2.2 in that the thermosensitive gel emulsion adopts the thermosensitive gel emulsion obtained in Comparative Preparation Example 1.2, and the rest is the same as Preparation Example 2.2.
[0034] Comparative Preparation Example 2.3 A method for preparing modified polyester fiber, which is different from Preparation Example 2.2 in that the polyester fiber is immersed in the modified emulsion 7 times, and the rest is the same as Preparation Example 2.2.
[0035] Example 1 A method for preparing a temperature-adjustable composite deformation yarn comprises the following steps: blending the modified polyester fiber obtained in Preparation Example 2.1 with cotton fiber to obtain a blended yarn, and then heat-setting the blended yarn at 175°C for 8 minutes to obtain a composite deformation yarn, wherein the modified polyester fiber accounts for 15% by weight in the yarn, and the remainder is cotton fiber.
[0036] Example 2 A method for preparing a temperature-adjustable composite deformation yarn comprises the following steps: blending the modified polyester fiber obtained in Preparation Example 2.1 with cotton fiber to obtain a blended yarn, and then heat-setting the blended yarn at 180°C for 6 minutes to obtain a composite deformation yarn, wherein the modified polyester fiber accounts for 20% by weight in the yarn, and the remainder is cotton fiber.
[0037] Example 3 A method for preparing a temperature-adjustable composite deformation yarn comprises the following steps: blending the modified polyester fiber obtained in Preparation Example 2.1 with cotton fiber to obtain a blended yarn, and then heat-setting the blended yarn at 180°C for 6 minutes to obtain a composite deformation yarn, wherein the modified polyester fiber accounts for 25% by weight in the yarn, and the remainder is cotton fiber.
[0038] Example 4 A method for preparing a temperature-adjustable composite textured yarn is different from Example 2 in that the modified polyester fiber adopts the modified polyester fiber obtained in Preparation Example 2.2, and the rest is the same as Example 2.
[0039] Example 5 A method for preparing a temperature-adjustable composite textured yarn is different from that of Example 2 in that the modified polyester fiber adopts the modified polyester fiber obtained in Preparation Example 2.3, and the rest is the same as that of Example 2.
[0040] Example 6 A method for preparing a temperature-adjustable composite textured yarn, which is different from Example 4 in that the modified polyester fiber adopts the modified polyester fiber obtained in Preparation Example 2.4, and the rest is the same as Example 4.
[0041] Example 7 A method for preparing a temperature-adjustable composite textured yarn, which is different from Example 4 in that the modified polyester fiber uses the modified polyester fiber obtained in Preparation Example 2.5, and the rest is the same as Example 4.
[0042] Example 8 A method for preparing a temperature-adjustable composite textured yarn, which is different from Example 4 in that the modified polyester fiber uses the modified polyester fiber obtained in Preparation Example 2.6, and the rest is the same as Example 4.
[0043] Example 9 A method for preparing a temperature-adjustable composite textured yarn, which is different from Example 4 in that the modified polyester fiber uses the modified polyester fiber obtained in Preparation Example 2.7, and the rest is the same as Example 4.
[0044] Example 10 A method for preparing a temperature-adjustable composite textured yarn is different from Example 4 in that the modified polyester fiber uses the modified polyester fiber obtained in Comparative Preparation Example 2.1, and the rest is the same as Example 4.
[0045] Embodiment 11 A method for preparing a temperature-adjustable composite textured yarn, which is different from Example 4 in that the modified polyester fiber uses the modified polyester fiber obtained in Comparative Preparation Example 2.2, and the rest is the same as Example 4.
[0046] Comparative Example 1 A method for preparing a temperature-adjustable composite textured yarn, which is different from Example 2 in that the modified polyester fiber uses the modified polyester fiber obtained in Comparative Preparation Example 2.3, and the rest is the same as Example 2.
[0047] Performance Testing The composite deformed yarn obtained in the above embodiments and comparative examples was woven into a thermostatic fabric, and the softness (bending stiffness), moisture permeability (test conditions: temperature 20°C, relative humidity 60%), breathability, washability (calculated by fabric weight loss rate, washed 50 times), and heat storage performance of the fabric were tested. The heat storage performance was calculated by a DSC instrument, and the test results are shown in Table 1.
[0048] Table 1 Composite deformation fabric test results From Table 1 we can see that: The composite deformed fabrics obtained in Examples 1-3 of the present application have a bending resistance less than or equal to 2.5, a moisture permeability of more than 7000, and an air permeability of more than 550. After 50 times of washing, the weight loss rate of the fabric is less than 13%, indicating that the composite deformed fabrics obtained in Examples 1-3 of the present application have good softness, moisture permeability and air permeability. At the same time, the thermosensitive gel and the polyester fiber have good bonding ability, so that the weight loss rate of the fabric is still less than 13% after 50 times of washing; the size of the heat storage performance determines whether the temperature regulation function of the fabric is effective. The heat storage performance of the fabrics obtained in Examples 1-3 of the present application is more than 41 J / g, indicating that the fabrics obtained in the present application have good temperature control performance.
[0049] Compared with Example 2, when the composite deformed fabric obtained by Preparation Examples 2.2 and 2.3 is used, the bending stiffness is reduced, the moisture permeability and air permeability are improved, the weight loss rate is also reduced, and the heat storage performance is further improved, indicating that the various performances of the fabric obtained in Examples 4-5 of the present application are further improved.
[0050] Compared with Example 4, after changing the thermosensitive gel emulsion in the preparation of the modified polyester fiber, the various properties of the composite deformable fabrics obtained in Examples 6-9 are further improved compared with Example 4. It can be seen that the preparation of the thermosensitive gel in this application also has a certain influence on the various properties of the fabric.
[0051] Compared with Example 4, when the thermosensitive monomer in the thermosensitive gel is only N-isopropyl acrylamide or only 2-(2-methoxyethoxy)ethyl methacrylate, the various properties of the composite deformable fabric obtained in Examples 10-11 are reduced. This shows that the combined use of two thermosensitive monomers can effectively improve the temperature control performance and other properties of the fabric.
[0052] Compared with Example 2, in Comparative Example 1, after the polyester fiber was immersed in the modified emulsion for 7 times, the bending stiffness of the obtained composite deformed fabric was significantly increased, that is, the softness of the fabric was reduced. The reason may be that too much thermosensitive gel was attached to the polyester fiber, which increased the friction between the fabric yarns, thereby affecting the softness of the fabric.
[0053] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.
Claims
1. A temperature-adjustable composite textured yarn, characterized in that: The yarn comprises modified polyester fiber and cotton fiber, wherein the weight proportion of the modified polyester fiber in the yarn is 15-25%, and the balance is cotton fiber; the modified polyester fiber is obtained by the following modification method: a thermosensitive gel emulsion, a crosslinking agent I, and a catalyst are stirred and dissolved to obtain a modified emulsion, and then the polyester fiber is immersed in the modified emulsion for reaction for 15-20 minutes, and then the polyester fiber is taken out and baked at 80±3°C for 10-15 minutes, and the above operation is repeated, so that the polyester fiber is immersed in the modified emulsion for 3-5 times, and the polyester fiber after the last baking is baked at 160°C for 5 minutes to obtain the modified polyester fiber.
2. The temperature-adjustable composite textured yarn according to claim 1, characterized in that: The weight ratio of the thermosensitive gel emulsion, the crosslinking agent and the catalyst is (10-15): (2.8-4.1):
1.
3. The temperature-adjustable composite textured yarn according to claim 1, characterized in that: The crosslinking agent I is butanetetracarboxylic acid.
4. The temperature-adjustable composite textured yarn according to claim 1, characterized in that: The thermosensitive gel emulsion is obtained by the following preparation method: 0.5-0.7 mol of a surfactant is added to water and stirred to dissolve, then 15-20 mol of a thermosensitive monomer and 1-5 mol of a hydrophilic monomer are added, and after dissolving for 15-20 minutes, 0.8-1.0 mol of a crosslinking agent II is added and stirred, and then 0.03-0.05 mol of an initiator is added at a temperature of 70±2° C., and the reaction is carried out under a nitrogen atmosphere for 5-6 hours, followed by centrifugation and dialysis to obtain the thermosensitive gel emulsion.
5. The temperature-adjustable composite textured yarn according to claim 4, characterized in that: The temperature-sensitive monomer is composed of N-isopropylacrylamide and 2-(2-methoxyethoxy)ethyl methacrylate in a molar ratio of 0.5:(0.8-1.6).
6. The temperature-adjustable composite textured yarn according to claim 4, characterized in that: The hydrophilic monomer is ethylene glycol monoethyl ether acetate.
7. The temperature-adjustable composite textured yarn according to claim 4, characterized in that: The crosslinking agent II is 2-mercaptobenzoic acid.
8. A method for preparing a temperature-adjustable composite textured yarn according to any one of claims 1 to 7, characterized in that: The method comprises the following steps: blending modified polyester fiber and cotton fiber to obtain blended yarn, and then subjecting the blended yarn to heat setting treatment at 175-180° C. for 6-8 minutes to obtain composite deformed yarn.
9. A temperature-adjustable fabric, characterized in that: The composite textured yarn obtained in claim 8 is woven into a temperature-adjustable fabric.