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Polyvinylpyrrolidone coating fluorescent yarn and preparation method thereof

A polyvinylpyrrolidone and yarn technology, applied in the field of polyvinylpyrrolidone-coated fluorescent yarn and its preparation, can solve the problem of large dye adsorption, corrosion resistance, poor strength and toughness, poor yarn color fastness, etc. question

Active Publication Date: 2021-08-20
DALIAN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing fluorescent yarns are generally made of cotton fibers. During the dyeing process of fluorescent dyes, the dye adsorption amount is relatively large, and the dyes and fibers are only combined through hydrogen bonds and van der Waals forces. The color fastness of the yarns after fluorescent dyeing is poor.
Due to the chemical properties of cotton fiber itself, fluorescent cotton yarn is easily affected by the external temperature and humidity environment, and its corrosion resistance, strength and toughness are not good

Method used

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  • Polyvinylpyrrolidone coating fluorescent yarn and preparation method thereof
  • Polyvinylpyrrolidone coating fluorescent yarn and preparation method thereof
  • Polyvinylpyrrolidone coating fluorescent yarn and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0032] Prepare fluorescent slurry: prepare 20g / L fluorescein / ethanol solution and 30g / L PVP / ethanol solution. The PVP / ethanol solution was stirred at 90 °C for 2 h. PVP / ethanol solution was cooled and mixed with fluorescein / ethanol solution at a volume ratio of 4:1 and stirred for 2 hours to obtain fluorescent slurry.

[0033] Prepare initiator solution: prepare 1.0 wt% azobisisobutyronitrile / ethanol solution.

[0034] Preparation of fluorescent cotton yarn: one sizing of cotton yarn, the slurry is fluorescent slurry, the sizing speed is 70m / min, the slurry temperature is 80°C, the drying temperature is 70°C, and the fluorescein / PVP is adsorbed on the surface of the cotton yarn. In the second sizing process, the slurry is an initiator solution, the sizing speed is 70m / min, the slurry temperature is 90°C, and the drying temperature is 70°C, and the initiator initiates PVP cross-linking polymerization. The polymerization reaction makes the PVP cross-linked polymer coated on th...

Embodiment 2

[0040] Prepare fluorescent slurry: prepare 15g / L fluorescein / ethanol solution and 15g / L PVP / ethanol solution. The PVP / ethanol solution was stirred at 90 °C for 2 h. PVP / ethanol solution was cooled and mixed with fluorescein / ethanol solution at a volume ratio of 3:2 and stirred for 2 hours to obtain fluorescent slurry.

[0041] Prepare initiator solution: prepare 0.5 wt% azobisisobutyronitrile / ethanol solution.

[0042] Preparation of fluorescent cotton yarn: a cotton yarn sizing, the slurry is fluorescent slurry, the sizing speed is 75m / min, the slurry temperature is 90°C, the drying temperature is 70°C, and the fluorescein / PVP is adsorbed on the surface of the cotton yarn. In the second sizing process, the slurry is an initiator solution, the sizing speed is 75m / min, the slurry temperature is 90°C, and the drying temperature is 70°C, and the initiator initiates PVP cross-linking polymerization. Macromolecular or network PVP cross-linked polymer is coated on the surface of c...

Embodiment 3

[0044] Prepare fluorescent slurry: prepare 15g / L fluorescein / ethanol solution and 20g / L PVP / ethanol solution. The PVP / ethanol solution was stirred at 90 °C for 2 h. PVP / ethanol solution was cooled and mixed with fluorescein / ethanol solution at a volume ratio of 4:1 and stirred for 2 hours to obtain fluorescent slurry.

[0045] Prepare initiator solution: prepare 1.0 wt% sodium persulfate / ethanol solution.

[0046]Preparation of fluorescent cotton yarn: a cotton yarn sizing, the slurry is fluorescent slurry, the sizing speed is 80m / min, the slurry temperature is 90°C, the drying temperature is 70°C, and the fluorescein / PVP is adsorbed on the surface of the cotton yarn. In the second sizing process, the slurry is an initiator solution, the sizing speed is 80m / min, the slurry temperature is 90°C, and the drying temperature is 70°C, and the initiator initiates PVP cross-linking polymerization. Macromolecular or network PVP cross-linked polymer is coated on the surface of cotton ...

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Abstract

The invention discloses a preparation method of polyvinylpyrrolidone coating fluorescent yarn, and belongs to the technical field of yarn processing. In the sizing process, the surface of the yarn is sequentially coated with fluorescein dye and polyvinylpyrrolidone through a two-sizing method, and the fluorescent yarn is prepared. The preparation method is simple in process, the coating is prepared through polymerization initiated by polyvinylpyrrolidone free radicals, fluorescent slurry is firmly solidified on the surface of the yarn, and the yarn is endowed with corrosion resistance, weather resistance and good leveling property.

Description

technical field [0001] The invention belongs to the technical field of yarn processing, and in particular relates to a fluorescent yarn coated with polyvinylpyrrolidone and a preparation method thereof. Background technique [0002] Fluorescent yarn is a high-visibility product with safety, warning, protection and identification functions, which brings convenience to people’s life. Transportation, aviation and navigation, night operations, fire emergency and daily life and other fields. Existing fluorescent yarns are generally made of cotton fibers. During the dyeing process of fluorescent dyes, the amount of dye adsorption is large, and the dyes and fibers are only combined through hydrogen bonds and van der Waals forces. The color fastness of fluorescent dyed yarns is poor. Due to the chemical properties of cotton fiber itself, fluorescent cotton yarn is easily affected by the external temperature and humidity environment, and its corrosion resistance, strength and toughn...

Claims

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Application Information

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IPC IPC(8): D06M13/207D06M15/356D06M101/06
CPCD06M13/207D06M15/3562D06M2101/06
Inventor 王迎夏禹舜
Owner DALIAN POLYTECHNIC UNIVERSITY