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A modified antibacterial functional fiber and its preparation method

A functional fiber and modification technology, applied in the field of polyester fiber production, can solve the problems of limited antibacterial time, unsustainable antibacterial effect, and inability to achieve lasting antibacterial, and achieve the effect of increasing surface roughness and not easy to fall off.

Active Publication Date: 2021-12-10
HEYE HEALTH TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But, according to prior art, there is certain limitation in above-mentioned two kinds of methods
The antibacterial fiber prepared by the existing fiber surface modification cannot form a uniform and stable antibacterial coating, and more importantly, its antibacterial time is limited. With the use of the fabric, the antibacterial particles often detach from the fabric, which cannot achieve the purpose of lasting antibacterial
However, the fibers prepared by blending modification technology generally have the problem of uneven distribution of nano-antibacterial particles. In addition, because the antibacterial particles are inside the fiber, their antibacterial effect is worse than that of fibers prepared by surface modification.
[0003] At present, antibacterial fibers are widely used and demand is large, but the existing technology cannot effectively solve the problems of unsustainable antibacterial effect and uneven dispersion of antibacterial particles, so that antibacterial fibers cannot be effectively formed in large-scale production, and it is difficult to meet the extensive needs of the current market

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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  • A modified antibacterial functional fiber and its preparation method
  • A modified antibacterial functional fiber and its preparation method
  • A modified antibacterial functional fiber and its preparation method

Examples

Experimental program
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Effect test

preparation example Construction

[0027] Such as figure 1 Shown, the present invention proposes a kind of preparation method of modified antibacterial functional fiber, comprises the following steps:

[0028] S10, the PET polyester fiber oxidation treatment step, increases the roughness of the fiber surface, makes the fiber surface form dense pits, and provides space for anchoring hydroxyl groups in the next step. The specific method is as follows: mix the PET polyester fiber and the oxidizing agent in a mass ratio of 1:5, soak for 10-60 minutes at normal temperature, wash with distilled water for 3-5 times, and dry. Wherein, the oxidizing agent includes hydrogen peroxide with a mass fraction of 30%. Preferably, the oxidizing agent can also include FeCl 3 , its mass concentration in the oxidizing agent is 40%, which can achieve better results. More preferably, the oxidizing agent may also include sodium lauryl sulfate, and its mass concentration in the oxidizing agent is 0.5%. Sodium lauryl sulfate is an a...

Embodiment 1

[0041](1) Oxidation treatment of PET polyester fiber: mix PET polyester fiber with oxidant at a mass ratio of 1:5, soak for 10 minutes at room temperature, wash with distilled water for 3 to 5 times, and dry. The oxidizing agent comprises 30% hydrogen peroxide and 40% FeCl in mass fraction 3 And a mass fraction of 0.5% sodium lauryl sulfate.

[0042] (2) Alkali treatment: the oxidized PET polyester fiber is mixed with 5% NaOH solution in a mass ratio of 1:20, soaked at room temperature for 60 minutes, washed with distilled water until neutral, and dried to obtain modified permanent polyester fiber.

[0043] (3) Surface modification of nano-metal oxide antibacterial particles: Mix nano-copper oxide antibacterial particles, water, isopropanol and KH-550 in a mass ratio of 1:80:10:1.2, stir and react at room temperature for 2 to 6 hours, and react After the end, vacuum suction filtration, the filter cake is washed with ethanol for 3 to 5 times, and dried to obtain modified anti...

Embodiment 2

[0046] The difference between embodiment 2 and embodiment 1 lies in: pretreatment is carried out before the polyester fiber is oxidized. The pretreatment method is as follows: after the PET polyester fiber is dried, it is soaked in acetone at normal temperature for 12 hours, and then washed with distilled water for 3 to 5 times, washed with acetone, and dried.

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Abstract

The invention relates to the technical field of polyester fiber production, in particular to a modified antibacterial functional fiber and a preparation method thereof. The preparation method provided by the present invention includes: Step 1, the PET polyester fiber is oxidized with an oxidizing agent to form a rough surface; Step 2, carrying out alkali treatment, anchoring hydroxyl groups on the surface of the fiber; Step 3, using KH-550 to treat nano antibacterial The surface of the particle is modified; Step 4, the modified antibacterial particle is cross-linked with the modified polyester fiber. The modified antibacterial functional fiber prepared by the method of the invention has the advantages of long-lasting antibacterial effect and uniform dispersion of antibacterial particles.

Description

technical field [0001] The invention relates to the technical field of polyester fiber production, in particular to a modified antibacterial functional fiber and a preparation method thereof. Background technique [0002] At present, with the continuous improvement of the quality of life, people's demand for functional protective textiles is becoming increasingly urgent. The fibers used to prepare ordinary textiles do not have antibacterial ability. Under certain conditions, such as rainy, humid, etc., bacteria will be provided with a good environment for survival and reproduction, thereby threatening the health of users. At present, there are two main methods to solve the antibacterial problem of fibers: one is the fiber surface modification technology, through the formation of chemical bonds between nano antibacterial particles and the surface of fibers or fabrics, the antibacterial components are attached to the surface of fibers or fabrics, so as to achieve antibacterial...

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 Patents(China)
IPC IPC(8): D06M11/50D06M11/38D06M11/42D06M11/44D06M101/32
CPCD06M11/38D06M11/42D06M11/44D06M11/50D06M16/00D06M2101/32
Inventor 胡立江方志财李俊方彦雯廖钟财潘丹
Owner HEYE HEALTH TECH CO LTD