Light-masking hydrophilic fiber and preparation method thereof

A hydrophilic fiber, optical shielding technology, applied in the field of fiber manufacturing, can solve problems such as poor fabric comfort, and achieve the effects of high comfort, improved hydrophobicity, and good skin affinity

Active Publication Date: 2015-03-25
CHINESE TEXTILE ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to provide a preparation method of optically shielding hydrophilic fibers and optically shielding hydrophilic fibers to solve the problem of poor fabric comfort caused by high optically shielding fibers in the prior art due to hydrophobic properties

Method used

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  • Light-masking hydrophilic fiber and preparation method thereof

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preparation example Construction

[0020] As introduced in the background technology section, the existing high optical shielding fibers have poor fabric comfort due to their hydrophobic properties. In order to solve this problem, the inventors of the present invention provide a method for preparing optically shielding hydrophilic fibers, which includes the following steps: A1, dividing the inorganic light-shielding powder into a first part and a second part, and dividing the first part of the inorganic light-shielding powder , Aromatic dibasic acid and aliphatic dibasic alcohol are configured into a mixed slurry, and after esterification, a pre-reaction melt is formed; A2, aliphatic polyamide is added to the pre-reaction melt, and after polycondensation reaction, Cooling to form a modified polyester material; A3, covering the surface of the second part of the inorganic light-shielding powder with a resin coating layer to form a composite masterbatch; A4, blending and melting the modified polyester material and ...

Embodiment 1

[0050] Prepare terephthalic acid, ethylene glycol and titanium dioxide with a particle size of 0.1 μm into a mixed slurry, wherein the molar ratio of terephthalic acid to ethylene glycol is 1:1.15, and the amount of titanium dioxide added is 1 / 2 of the mass of terephthalic acid 0.3%. Then the mixed slurry is transported to the reactor for esterification reaction, wherein the reaction temperature is 250°C, and the reaction is terminated when the esterification rate reaches 92%, to obtain a pre-reaction melt;

[0051] Add nylon 66 equivalent to 20% of the weight of terephthalic acid and 0.04% titanium-based catalyst to the above pre-reaction melt for polycondensation and copolymerization. The reaction temperature is 280°C and the reaction time is 2h. After the reaction is completed, the material is discharged and pelletized The modified polyester chip was obtained, and the intrinsic viscosity of the chip was 0.8dL / g.

[0052] Mix titanium dioxide with a particle size of 0.1 μm ...

Embodiment 2

[0055]Terephthalic acid, propylene glycol, and titanium dioxide with a particle size of 0.01 μm were formulated into a mixed slurry, wherein the molar ratio of terephthalic acid to propylene glycol was 1:1.8, and the amount of titanium dioxide added was 3% of the mass of terephthalic acid. Then the mixed slurry is transported to the reactor for esterification reaction, wherein the reaction temperature is 250°C, and the reaction is terminated when the esterification rate reaches 96%, to obtain a pre-reaction melt;

[0056] Add nylon 6 equivalent to 5% of the weight of terephthalic acid and 0.1% titanium-based catalyst to the above pre-reaction melt for polycondensation and copolymerization. The reaction temperature is 260°C and the reaction time is 3h. After the reaction is completed, the material is discharged and pelletized Modified polyester chips were obtained, and the intrinsic viscosity of the chips was 1.2 dL / g.

[0057] Mix titanium dioxide with a particle size of 0.01 ...

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Abstract

The invention provides a light-masking hydrophilic fiber and a preparation method thereof. The preparation method comprises the following steps: A1, dividing inorganic light-masking powder into a first part and a second part, blending the first part of powder, aromatic dibasic acid and aliphatic diol into mixed slurry, and performing esterification reaction on the mixed slurry, so as to form a pre-reaction melt; A2, adding aliphatic polyamide into the pre-reaction melt, performing polycondensation reaction, and cooling, so as to form a modified polyester material; A3, coating the surface of the second part of powder with a resin coating, so as to form composite master batch; A4, blending and melting the modified polyester material and the composite master batch, so as to obtain a hydrophilic group modified polyester melt containing the inorganic light-masking powder; A5, spinning and drafting the hydrophilic group modified polyester melt containing the inorganic light-masking powder, so as to obtain the light-masking hydrophilic fiber. The fiber prepared by the preparation method has good internal reflection light absorption effect, and high refractive index and hydrophilicity, and the prepared textiles have good visual masking effect and good skin adaptability.

Description

technical field [0001] The invention relates to the field of fiber manufacturing, in particular to an optical shielding hydrophilic fiber and a preparation method thereof. Background technique [0002] The most basic performance requirements of clothing are "warm protection" and "body protection". The so-called "covering the body" is to require clothing to have good visual shielding performance. The visual shading performance of clothing is related to the color and thickness of the clothing fabric. The darker the color and thicker the fabric, the better its visual shading performance. However, when choosing clothing fabrics, in addition to covering properties, it is also necessary to comprehensively consider the requirements for fabrics such as seasons, climatic conditions, and occupational requirements. For example, in summer clothing, for the comfort of clothing, it is necessary to choose light-colored and light fabrics; the summer uniforms of the navy and customs need t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/92D01F1/10C08G69/44
Inventor 邱志成金剑
Owner CHINESE TEXTILE ACAD
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