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Chitin-containing polyester filament and preparation method thereof

A polyester filament and chitin technology, applied in the field of spinning, can solve the problems of weakened antibacterial effect, affecting the appearance, and non-permanent antibacterial effect, and achieve the effects of reducing bacterial adhesion, good antibacterial persistence, and excellent antibacterial effect

Inactive Publication Date: 2020-05-19
BESTEE MATERIAL (TSINGTAO) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the antibacterial agent is often evenly sprayed on the surface of the fabric. This method is simple and easy, but the chitin antibacterial substance sprayed directly is easy to lose during use, which weakens the antibacterial effect and does not last long. Added to spinning fiber products, but it is prone to high-temperature carbonization during high-temperature spinning, which affects fiber elasticity, and may affect the appearance of high-end products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1 A kind of polyester filament of chitin and preparation method thereof

[0031] 1. Preparation of modified chitin

[0032] 1) Deacetylation

[0033] Weigh chitin and add it to 40wt% sodium hydroxide and potassium hydroxide mixed lye in equal proportions, raise the temperature to 65°C, increase the stirring speed to 260 rpm, keep stirring for 10 hours, and undergo deacetylation reaction to form Amino-containing chitosan suspension;

[0034] The chitin accounts for 1 / 25 of the weight of the mixed lye;

[0035] Described chitosan, degree of deacetylation is 80%;

[0036] 2) Amination modification

[0037] Add hydroxypropyltrimethylammonium nitride to the above chitosan suspension, then add the catalyst, raise the temperature to 70°C, and react at this temperature for 10 hours, the suspension gradually becomes a clear yellow quaternary ammonium salt solution ;

[0038] The addition of described hydroxypropyltrimethylammonium nitride is 0.50 times of chitin...

Embodiment 2

[0060] Embodiment 2 A kind of polyester filament of chitin and preparation method thereof

[0061] 1. Preparation of modified chitin

[0062] 3) Deacetylation

[0063] Weigh chitin and add it to 45wt% sodium hydroxide and potassium hydroxide mixed lye in equal proportions, raise the temperature to 0°C, increase the stirring speed to 300 rpm, keep stirring for 10 hours, and undergo deacetylation reaction to form Amino-containing chitosan suspension;

[0064] The chitin accounts for 1 / 23 of the weight of the mixed lye;

[0065] Described chitosan, degree of deacetylation is 85%;

[0066] 4) Amination modification

[0067] Add hydroxypropyltrimethylammonium nitride to the above chitosan suspension, then add the catalyst, raise the temperature to 80°C, and react at this temperature for 12 hours, the suspension gradually becomes a clear yellow quaternary ammonium salt solution ;

[0068] The addition of described hydroxypropyltrimethylammonium nitride is 0.55 times of chitin ...

Embodiment 3

[0090] Embodiment 3 A kind of polyester filament of chitin and preparation method thereof

[0091] 1. Preparation of modified chitin

[0092] 5) Deacetylation

[0093] Weigh chitin and add it to 45wt% sodium hydroxide and potassium hydroxide mixed lye in equal proportions, raise the temperature to 70°C, increase the stirring speed to 300 rpm, keep stirring for 12 hours, and undergo deacetylation reaction to form Amino-containing chitosan suspension;

[0094] The chitin accounts for 1 / 20 of the weight of the mixed lye;

[0095] Described chitosan, degree of deacetylation is 92%;

[0096] 6) Amination modification

[0097] Add hydroxypropyltrimethylammonium nitride to the above chitosan suspension, then add the catalyst, raise the temperature to 80°C, and react at this temperature for 12 hours, the suspension gradually becomes a clear yellow quaternary ammonium salt solution ;

[0098] The addition of described hydroxypropyltrimethylammonium nitride is 0.58 times of chitin...

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Abstract

The present invention provides a chitin-containing polyester filament preparation method. The chitin content is 0.1-3%. The polyester filament preparation method comprises the following steps of preparing modified chitin, preparing a chitin-containing functional modifying agent, preparing polyester functional particles, preparing a mixed spinning solution and performing spinning forming; through the preparation process, the prepared polyester filament has the filament number being 2.0-3.5 dtex, the breaking strength being 5.2-5.8 cN / dtex, the breaking elongation rate being 38.5-40.0% and the breaking elongation CV value being 8.5-9.0%; and in addition, the polyester filament also has the natural antibacterial property, the antibacterial rate of bacteria such as staphylococcus aureus, escherichia coli and candida albicans easily infectable for the human body is up to 95.0-98.5, the color luster is uniform, the light transmittance reaches 71-75%, the naked eyes cannot see remarkable carbon black and particle agglomeration phenomena, and the polyester filament is suitable for producing high-grade textile products.

Description

technical field [0001] The invention belongs to the technical field of spinning, and in particular relates to a chitin-containing polyester filament and a preparation method thereof. Background technique [0002] The scientific name of polyester is polyethylene terephthalate fiber, referred to as polyester fiber, and polyester is the trade name of this fiber in our country. It is a fiber-forming high polymer-polyethylene terephthalate (PET) prepared from purified terephthalic acid (PTA) and ethylene glycol (EG) through esterification and polycondensation reactions. The fibers made by spinning and post-processing have a wide range of applications in the field of clothing fabrics. [0003] Chitin, also known as chitin, chitin, etc., is a rich natural resource, with nearly 1 billion naturally synthesized every year. It is the most abundant natural organic matter on the earth after cellulose fiber. Chitin is a natural polysaccharide that has both the biological functions of co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/92D01F1/10D01D10/02D01D5/16C08B37/08
CPCD01F6/92D01F1/103D01F1/10D01D5/16D01D10/02C08B37/003D01D1/02C08L5/08D01D5/08D01D5/06
Inventor 黄效华刘彦明黄效谦刘宇刘洁甄丽
Owner BESTEE MATERIAL (TSINGTAO) CO LTD