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Phase-change thermoregulation textile fabric and method for preparing same

A phase change and fabric technology, which is applied in the processing of textile materials, liquid/gas/vapor textile material processing, textiles and papermaking, etc. The phase change process is completely reversible, intelligent and controllable temperature regulation, and cost-effective advantages are obvious.

Inactive Publication Date: 2012-10-03
JIANGSU LANSIYU HOME TEXTILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, textile materials with temperature sensing and automatic adjustment functions are mainly prepared through the following technical approaches at home and abroad: (1) Hollow fiber filling method, using vacuum technology to make polyol solid-solid phase change materials (trimethylolethane / neopentyl glycol binary system) is filled into the polyester hollow fiber. Due to the large diameter of the hollow fiber, the sealing technology is difficult, and the phase change material is easy to precipitate or overflow and stick to the surface of the fiber. It is also used as a clothing fiber. (2) Coating and post-finishing method, which uses coating or post-finishing method to attach phase change materials and other additives to the surface of textiles, so that the textiles Get Phase Change Thermostat
The temperature-adjusting fabric prepared by this method has a hard hand, poor wearing comfort and washability, and is not suitable for taking; (3) composite spinning method, which is to melt polymer and phase change material (solution) according to a certain Ratio, using composite spinning technology to directly spin sheath-core phase change fibers, in which the phase change material is the core component, and the fiber-forming polymer is the sheath component. In the temperature-adjusting fiber prepared by the composite spinning method, the phase change material The content is very high, but the fiber skin polymer is difficult to ensure a good seal to the core phase change material
After continuous wearing and use, the phase change material will continue to permeate and lose from the fiber, and the temperature adjustment performance will also deteriorate, which will affect its application; (4) Microcapsule spinning method: the phase change material with a diameter of less than 5 μm The microcapsules are dispersed in the polymer melt or solution and spun to obtain phase-change temperature-adjusting fibers. The prepared fibers have certain thermal properties, but their mechanical properties are poor and the fiber diameter is too large, which limits its application.
However, the temperature-regulating fabrics prepared by the above-mentioned several technological methods have poor air permeability, rough hand feeling, uneven dispersion of phase change materials, easy continuous seepage and loss, not resistant to washing after use, and poor temperature-regulating performance and temperature-regulating effect. Therefore, it cannot meet the warm and comfortable requirements of home textile fabrics, and is also not suitable as a fabric for home textile products.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Phase-change thermoregulation textile fabric and method for preparing same
  • Phase-change thermoregulation textile fabric and method for preparing same
  • Phase-change thermoregulation textile fabric and method for preparing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] At a mass concentration of 35% PEG ( =3000), the cross-linking agent dimethylol dihydroxyethylene urea (2D resin) and the catalyst MgCl 2 ·6H 2 O / citric acid (mass ratio is 5 / 1) reacts to generate PEG-2D cross-linked product as padding solution; the cotton sample to be treated adopts the process of padding→pre-baking→baking→washing→drying and after Finishing method, after the cotton fabric is treated with two dipping and two padding (the liquid squeeze rate is 90%), a crosslinking reaction occurs between the generated PEG-2D crosslinked product and the cellulose fiber, and a chemical bond is formed between the PEG and the cellulose, Pre-bake at 60°C for 7 minutes, bake at 140°C for 3 minutes, and then fully wash and dry to finally generate PEG-2D-Cell products, and obtain polyethylene glycol cross-linked deposition method phase change temperature-adjusting home textile fabrics. After testing, the sample The weight gain rate was 13.5%.

[0026] The thermal performanc...

Embodiment 2

[0029] At a mass concentration of 30% PEG ( =5000) solution, respectively add crosslinking agent 2D resin and catalyst MgCl according to the mass ratio of PEG to 85:15, 99.9:0.1 2 ·6H 2 O / citric acid (mass ratio is 5 / 1) reacts to generate PEG-2D cross-linked product as padding solution; the cotton sample to be treated adopts the process of padding→pre-baking→baking→washing→drying and after Finishing method, refer to the process conditions of Example 1, so that the PEG-2D crosslinked product is generated and then crosslinked with the cellulose fiber to form a chemical bond between PEG and cellulose, and finally generate the PEG-2D-Cell product, and obtain Polyethylene glycol crosslinking deposition method phase change temperature regulating home textile fabric, its weight gain rate is 14.2%.

[0030] See attached figure 2 According to Example 1, the thermal properties of the fiber were analyzed with a DSC differential scanning calorimeter for the prepared sample, and the p...

Embodiment 3

[0032] At a mass concentration of 45% PEG ( =1000) solution, respectively add crosslinking agent 2D resin and catalyst MgCl according to the mass ratio of PEG to 95:10, 99.9:0.1 2 ·6H 2O / citric acid (mass ratio is 5 / 1) reacts to generate PEG-2D cross-linked product, adopts padding→pre-baking→baking→washing→drying technology and finishing method, referring to the process conditions of Example 1 , so that the PEG-2D cross-linked product cross-links with the cellulose fiber to form a chemical bond between PEG and cellulose, and finally generates a PEG-2D-Cell product. The obtained polyethylene glycol cross-linked deposition method phase change modulation Wen Jiafang fabrics, the weight gain rate of 10.7%, the prepared samples according to Example 1 with DSC differential scanning calorimeter fiber thermal performance analysis, phase transition temperature in the range of 29.3 ~ 48.6 ℃.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention relates to an after-finishing technology of a textile fabric, in particular to a phase-change thermoregulation textile fabric and a method for preparing the phase-change thermoregulation textile fabric, belonging to the technical field of textile materials and textile material processing. According to the technical scheme disclosed by the invention, the method for preparing the phase-change thermoregulation textile fabric comprises the following steps: adding a mixture of a catalyst and citric acid as well as a cross-linking agent into polyethylene glycol solution to prepare a padding solution, wherein the catalyst is the MgCl2.6H2O, and the cross-linking agent is the dimethylol dihydroxy-ethylene urea; and subjecting polyethylene glycol and the cellulose of a cotton fabric to cross-linking reaction by adopting the polyethylene glycol cross-linking and depositing method through the padding process, the baking process and other after-finishing modes under the action of a proper amount of cross-linking agent, and depositing the product of reaction on the textile fabric to obtain the phase-change thermoregulation textile fabric. The process for preparing the phase-change thermoregulation textile fabric is simple and convenient to operate, and suitable for industrial production. The phase-change thermoregulation textile fabric prepared by adopting the method has the characteristics of washing fastness and good durability and has the bi-directional thermoregulation function, wide adaptability and obvious cost-performance ratio advantage.

Description

technical field [0001] The invention relates to a finishing technology of textile fabrics, in particular to a home textile fabric with a phase change temperature regulating function and a preparation method thereof, belonging to the technical field of textile materials and processing. Background technique [0002] At present, textile materials with temperature sensing and automatic adjustment functions are mainly prepared through the following technical approaches at home and abroad: (1) Hollow fiber filling method, using vacuum technology to make polyol solid-solid phase change materials (trimethylolethane / neopentyl glycol binary system) is filled into the polyester hollow fiber. Due to the large diameter of the hollow fiber, the sealing technology is difficult, and the phase change material is easy to precipitate or overflow and stick to the surface of the fiber. It is also used as a clothing fiber. (2) Coating and post-finishing method, which uses coating or post-fin...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D06M15/53D06M11/155D06M13/207D06M13/432D06B3/18D06B15/00D06C7/00D06M101/06
Inventor 俞建辉管新海郑文娟左保齐
Owner JIANGSU LANSIYU HOME TEXTILE
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