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Structural color fiber material and preparation method thereof

A fiber material and structural color technology, applied in the field of fiber materials, can solve problems such as the surface shedding of textile substrates, cracks in the photonic crystal structure, and great influence on textile substrates, so as to achieve bright colors, avoid uneven color development, and facilitate adsorption Effect

Pending Publication Date: 2022-07-29
WUHAN TEXTILE UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] However, at present, structurally colored textiles generally deposit structurally colored microspheres into the fabric by vertical deposition, gravity sedimentation, centrifugal deposition, etc.; but these methods are greatly affected by the textile substrate, and most of the photonic crystal structures on the substrate have poor stability. , in the process of folding, bending and washing, the photonic crystal structure is prone to cracks and even falls off from the surface of the textile substrate
In order to solve these problems in the prior art, a specific reagent adhesive layer is often used between the photonic crystal structure layer and the textile substrate, or an encapsulant is coated on the surface of the photonic crystal structure layer to improve the stability of the photonic crystal structure. and the durability of structural color; but through the above method of adding adhesive or encapsulant, it is not only unfavorable for the color development of structural color, but also unfavorable for the comfort of textiles (such as softness, breathability, lightness, etc.) Impact

Method used

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  • Structural color fiber material and preparation method thereof
  • Structural color fiber material and preparation method thereof
  • Structural color fiber material and preparation method thereof

Examples

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preparation example Construction

[0037] A preparation method of the structural color fiber material of any one of the above, comprising the following steps:

[0038] S1. Mix the two-dimensional material MXene with the dispersion liquid to obtain a two-dimensional material MXene solution with a concentration of 0.1-50 mg / mL; mix the photonic crystal nano-microspheres with the dispersion liquid to obtain a concentration of 0.01-1.0 g / mL Photonic crystal nano-microsphere solution;

[0039] S2, using a high-pressure airflow spray gun to uniformly spray the two-dimensional material MXene solution on the surface of the fiber material substrate to obtain MXene / fiber material substrate;

[0040] S3, spraying the photonic crystal nano-microsphere solution on the surface of the MXene / fiber material substrate obtained in step S2, and drying at 50-80° C. to obtain a structural color fiber material.

[0041] Wherein, the dispersion liquid is composed of one or more of alcohol solvent and deionized water. After the two-d...

Embodiment 1

[0046] The present embodiment provides a structural color fiber material and a preparation method thereof, comprising the following steps:

[0047] S1. Using ethyl orthosilicate with a concentration of 3.5% as a silicon source, ammonia water as a catalyst, a mixed solution of water and ethanol as a solvent, the reaction temperature is 40 ° C, and the reaction time is 2 h, the prepared silica colloidal nano-microspheres are as follows: Centrifuge at 1100 rpm, wash and purify, and dry at 60 °C to obtain silica colloidal nano-microspheres with a particle size of 164 nm;

[0048] S2, mixing the two-dimensional material MXene with an average sheet diameter of 5 μm and the dispersion to obtain a two-dimensional material MXene solution with a concentration of 10 mg / mL; mixing the silica colloidal nano-microsphere powder obtained in step S1 with the dispersion, A silica colloidal nano-microsphere solution with a concentration of 0.04 g / mL was prepared;

[0049] S3, using a high-press...

Embodiment 2～4

[0059] This example provides a structural color fiber material and a preparation method thereof. Compared with Example 1, the difference is that the particle sizes of the prepared silica colloidal nano-microspheres are 220 nm, 255 nm, and 341 nm, respectively; It is roughly the same as Embodiment 1, and will not be repeated here.

[0060] see Figure 4 shown, Figure 4 The appearance diagram of the original PET / PA non-woven fabric, the structural color PET / PA orange-shaped microfiber non-woven fabric prepared in Comparative Example 1 and Examples 1 to 4, it can be seen from the figure that the photonic crystal nano-microspheres The adhesion on the surface of the non-woven fabric is very firm and uniform, and the color rendering effect is also very uniform; and the non-woven fabric prepared by silica colloidal nano-microspheres with different particle sizes has different colors; this is because the photonic crystals of different sizes are sensitive to light. Different effects...

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Abstract

The invention provides a structural color fiber material and a preparation method thereof. The structural color fiber material comprises a fiber material base material, a color developing layer and a photonic crystal structural color layer, wherein the color developing layer and the photonic crystal structural color layer are attached to the fiber material base material; the color developing layer comprises a two-dimensional material MXene; and the photonic crystal structural color layer comprises photonic crystal nano microspheres which are orderly and tightly arranged. The two-dimensional material MXene is directionally arranged and self-assembled on the surface of the fiber to form a color development layer, so that the deposition and ordered arrangement of the photonic crystal nano-microspheres on the surface of the fiber are accelerated, the binding strength of the photonic crystal nano-microspheres and the fiber is improved, and the color development of the material is clearer; by regulating and controlling the size of the photonic crystal nano-microspheres, the structural color fiber material with different colors can be displayed, and the defects of dyed products are overcome. The photonic crystal nano-microspheres are arranged and embedded into the fiber material in a self-assembly mode, and the fiber material has the advantages of being firm in deposition, good in color stability, good in weather resistance and good in photothermal conversion performance; and the preparation process is simple, no redundant reagent is needed, the economic benefit is high, and the application prospect is good.

Description

technical field [0001] The invention relates to the technical field of fiber materials, in particular to a structural color fiber material and a preparation method thereof. Background technique [0002] At present, the dyeing of textiles is mainly based on dyeing. This method is easy to cause pollution in the production process, and due to the difficulty of waste water treatment in the later stage, it will lead to the problem of waste of water resources. In order to improve the dyeing rate of some difficult-to-dye textiles, high temperature or high alkalinity dyeing methods are usually used. For chemical fiber textiles, the fiber strength will be seriously damaged, affecting its mechanical properties, and it is difficult to dye out. Deep, intense and vivid colors. The color of dyed textiles tends to shed or fade with age and cleaning. In nature, many organisms have brilliant and colorful structural colors, such as opal and peacock feathers, etc. The color is produced by th...

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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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/673D06P3/82D06M11/74D06M11/79D06M101/32D06M101/34
CPCD06P1/67383D06P1/673D06P3/8214D06M11/74D06M11/79D06M2101/32D06M2101/34
Inventor 陆莹王栋刘琼珍李沐芳罗梦颖
Owner WUHAN TEXTILE UNIV
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