Photochromic fabric for curtain

A photochromic and photochromic technology, which is applied in the field of curtain fabrics and curtain fabrics, can solve the problems of being difficult to apply to families, affecting indoor light, and judging the time of day and night, achieving good ultraviolet light discoloration performance, improving protection performance, The effect of increased light transmission performance

Inactive Publication Date: 2019-02-15
RUGAO FUDA ENG & TECH RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the fabrics of these curtains have the above-mentioned respective characteristics, there are certain application limitations in the fabrics, that is, the fabrics of the curtains are too thin, and their shading performance is not good. It affects the light in the room, especially when the time cannot be preliminarily judged through the curtains. Moreover, the shading performance is achieved through the thickness and color of the curtain fabric. The use of such fabrics affects the overall layout of the interior and has a certain sense of depression. , is difficult to apply to family

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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  • Photochromic fabric for curtain
  • Photochromic fabric for curtain
  • Photochromic fabric for curtain

Examples

Experimental program
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Effect test

preparation example Construction

[0035] The preparation method of polyethylene terephthalate modified photochromic agent comprises the following steps:

[0036] 1) Add terephthalic acid and ethylene glycol into the reactor, heat the reactor and stir it to carry out esterification reaction, generate esterification product, and cool to solid; the reaction temperature is 180-220°C; the reaction time is 1 -4 hours.

[0037] 2) Grinding the esterification product into powder to obtain the esterification product powder;

[0038] 3) The powder of the esterification product, the inorganic color-changing agent and the organic color-changing agent are fully mixed, and then vacuum polycondensation is carried out to obtain a polyethylene terephthalate modified photochromic agent. When the vacuum polycondensation reaction is carried out, the vacuum is kept stable in this application, and the polycondensation conditions of low vacuum in the early stage and high vacuum in the late stage cannot be used in some existing tech...

Embodiment 1

[0042] A photochromic fabric for curtains, at least including photochromic fibers among the fibers used for weaving curtain fabrics;

[0043] Photochromic fiber by weight, it consists of:

[0044]

[0045] The inorganic photochromic agent among them is CaHfO3: La 2 o 3 .

[0046] In the polyethylene terephthalate modified photochromic agent, the photochromic agent accounts for 0.1% of the total weight of the polyethylene terephthalate modified photochromic agent.

[0047] The organic photochromic agent comprises a composition of spiropyran and azobenzene, wherein the mass ratio of spiropyran and azobenzene is 1:1.

[0048] The auxiliary agent includes one or more combinations of oxidizing agent, compatibilizer, antiaging agent and light stabilizer.

[0049] The preparation method of polyethylene terephthalate modified photochromic agent comprises the following steps:

[0050] 1) Add terephthalic acid and ethylene glycol to the reactor, the reaction temperature is 180°C; ...

Embodiment 2

[0054] A photochromic fabric for curtains, at least including photochromic fibers among the fibers used for weaving curtain fabrics;

[0055] Photochromic fiber by weight, it consists of:

[0056]

[0057] The inorganic photochromic agent among them is CaHfO3: La 2 o 3 .

[0058] In the polyethylene terephthalate modified photochromic agent, the photochromic agent accounts for 5% of the total weight of the polyethylene terephthalate modified photochromic agent.

[0059] The organic photochromic agent comprises a composition of spiropyran and azobenzene, wherein the mass ratio of spiropyran and azobenzene is 1:1.

[0060] The auxiliary agent includes one or more combinations of oxidizing agent, compatibilizer, antiaging agent and light stabilizer.

[0061] The preparation method of polyethylene terephthalate modified photochromic agent comprises the following steps:

[0062] 1) Add terephthalic acid and ethylene glycol to the reactor, the reaction temperature is 220°C; ...

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 photochromic fabric for a curtain. Fiber applied to textile curtain fabric at least comprises photochromic fiber, wherein the photochromic fiber is prepared from 55-80 parts by weight of polyethylene terephthalate fiber as polymer fiber, 20-30 parts by weight of a polyethylene terephthalate modified photochromic agent and 1-5 parts by weight of an auxiliary. According to the technical scheme, an organic photochromic agent is used, when visible light irradiates curtain fabric, color of the curtain fabric can fade, light transmittance performance is improved, and outsidebrightness can be felt clearly; at night, color of the curtain fabric gets darker, light transmittance performance is reduced, and shielding performance of the curtain fabric is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular refers to a fabric for curtains, especially a curtain fabric whose color changes correspondingly through the change of light. Background technique [0002] In the prior art, there are many types of curtain fabrics, including common curtain fabrics, flame-retardant curtain fabrics, antibacterial curtain fabrics, anti-ultraviolet curtain fabrics and many other types. [0003] Although the fabrics of these curtains have the above-mentioned respective characteristics, there are certain application limitations in the fabrics, that is, the fabrics of the curtains are too thin, and their shading performance is not good. It affects the light in the room, especially when the time cannot be preliminarily judged through the curtains. Moreover, the shading performance is achieved through the thickness and color of the curtain fabric. The use of such fabrics affects the overall lay...

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): D01F8/14D01F8/16D01F1/10
CPCD01F1/10D01F1/106D01F8/14D01F8/16
Inventor 王航王大平
Owner RUGAO FUDA ENG & TECH RES INST CO LTD
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