Preparation method of spotted fluorescent fiber and fluorescent fabric
A fluorescent fiber and spot technology, applied in the direction of fabric, fiber treatment, fiber chemical characteristics, etc., can solve problems such as complex process, and achieve the effect of simple preparation process and obvious fluorescent spots
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[0024] In order to solve the above-mentioned technical problems, an embodiment of the present invention provides a method for preparing a speckled fluorescent fiber, which includes the following steps: using PET as a raw material, introducing a fluorescent agent into a PET matrix through a twin-screw melt blending method to prepare fluorescent PET; The low-melting point PET is used as the skin, and the fluorescent PET is used as the core, and the fluorescent PET pre-oriented fiber is prepared by melting the sheath-core composite spinning assembly; the fluorescent PET fiber is obtained after being elasticized.
[0025] Specifically, the following steps are included:
[0026] (1) Preparation of fluorescent PET: Mix the dried PET powder and fluorescent agent in a high-speed mixer, and then add the blend to the twin-screw for melt blending to obtain fluorescent PET;
[0027] (2) Preparation of the composite fluorescent fiber: the composite fluorescent fiber is prepared by using th...
Embodiment 1
[0037] A method for preparing a speckled fluorescent fiber, comprising the steps of:
[0038] (1) Preparation of fluorescent PET: The dried PET powder and fluorescent agent were mixed in a high-speed mixer, and then the blend was added to a twin-screw for melt blending to obtain fluorescent PET.
[0039] The fluorescent agent is Ca2MgSi2O7:Eu, Dy, and the addition amount is 5% relative to the mass fraction of PET; the high-speed blending temperature is 140°C, and the melt-blending temperature is 280°C.
[0040] (2) Preparation of the composite fluorescent fiber: the composite fluorescent fiber is prepared by using the prepared fluorescent PET as the core and the low-melting point PET as the sheath by melting composite spinning.
[0041]In this step, the composite fluorescent POY fibers are prepared by forming by melting and composite spinning components, and the composite fluorescent fibers are obtained by drawing and twisting.
[0042] Specifically include:
[0043] POY fib...
Embodiment 2
[0048] A method for preparing a speckled fluorescent fiber, comprising the steps of:
[0049] (1) Preparation of fluorescent PET: The dried PET powder and fluorescent agent were mixed in a high-speed mixer, and then the blend was added to a twin-screw for melt blending to obtain fluorescent PET.
[0050] The fluorescer is CaS:Eu,Tm, and its addition amount is 0.01% relative to the mass fraction of PET; the high-speed blending temperature is 80°C, and the melt-blending temperature is 260°C.
[0051] (2) Preparation of the composite fluorescent fiber: the composite fluorescent fiber is prepared by using the prepared fluorescent PET as the core and the low-melting point PET as the sheath by melting composite spinning.
[0052] In this step, the composite fluorescent POY fibers are prepared by forming by melting and composite spinning components, and the composite fluorescent fibers are obtained by drawing and twisting.
[0053] Specifically include:
[0054] POY fiber: The temp...
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Abstract
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