Preparation method of nano zinc oxide spunlaced nonwoven fabrics

A nano-zinc oxide, non-woven fabric technology, applied in non-woven fabrics, textiles and papermaking, textile materials processing and other directions, can solve the problems of complex process, affect the non-woven feel and other problems, achieve simple process, excellent antibacterial performance, improve active effect

Active Publication Date: 2018-03-23
JIANGSU DEBANG SANITARY PROD +1
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  • Abstract
  • Description
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Problems solved by technology

[0003] At present, there have been reports on the antibacterial finishing of nano-antibacterial spunlaced nonwovens. Wang Hongbo of Jiangnan University and others have prepared nano-silver antibacterial nonwovens by post-finishing methods, but the process is complicated and requires dispersion of nano-metal powders. Binders can affect the feel of nonwovens

Method used

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  • Preparation method of nano zinc oxide spunlaced nonwoven fabrics

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preparation example Construction

[0026] One embodiment of the present invention provides a kind of preparation method of nano-zinc oxide spunlace nonwoven fabric, such as figure 1 as shown, figure 1 It is a flow chart of the preparation method of nano zinc oxide spunlace nonwoven fabric in one embodiment of the present invention. The preparation method of the nano-zinc oxide spunlaced nonwoven fabric comprises: selectively oxidizing viscose fibers to obtain aldehyde-based viscose, such as figure 1 Step S101 in: Graft-copolymerize the aldehyde-based viscose and amino starch to obtain modified viscose fibers, such as figure 1 In step S103; the modified viscose fiber and polyester fiber are combed, formed into a web, and reinforced to obtain a spunlace nonwoven fabric, such as figure 1 In step S105; the spunlaced nonwoven fabric is immersed in the aqueous solution of zinc salt, and then dried at a high temperature to obtain a nano-zinc oxide spunlace nonwoven fabric, such as figure 1 Step S107 in.

[0027] S...

Embodiment 1

[0041] Select 2kg of viscose staple fiber with a specification of 1.67dtex-38mm, open the viscose staple fiber and put it into 1g / l potassium periodate aqueous solution for impregnation, and then dry it for later use. The liquor ratio is 1:30.

[0042] Put the viscose fiber after potassium periodate treatment into 4g / l amino starch solution, the reaction temperature is 50°C, and the bath ratio is 1:50.

[0043] 2 kg of polyester fibers and viscose fibers were selected for mixing, and after carding, web forming, and reinforcement, spunlace nonwovens were obtained.

[0044] The spunlaced fabric was dipped into 0.01mol / l zinc nitrate solution, and then dried at 100°C to obtain nano-zinc oxide spunlaced nonwoven fabric.

Embodiment 2

[0046] Select 2kg of viscose staple fiber with a specification of 1.05dtex-38mm, open the viscose staple fiber and put it into 1.5g / l sodium periodate aqueous solution for impregnation, and then dry it for later use. The liquor ratio is 1:30.

[0047] Put the viscose fiber after sodium periodate treatment into 6g / l amino starch solution, the reaction temperature is 50°C, and the bath ratio is 1:50.

[0048] Select 4kg of polyester fiber and viscose fiber to mix, after carding, web forming and reinforcement to obtain spunlace nonwoven fabric.

[0049] The spunlaced fabric was dipped into 0.01mol / l zinc acetate zinc solution, and then dried at 100°C to obtain nano-zinc oxide spunlaced nonwoven fabric.

[0050]It has been tested that the antibacterial rate of the nano-silver polypropylene nonwoven fabric to Escherichia coli and Staphylococcus aureus reaches more than 90%.

[0051] In the preparation method of nano-zinc oxide spunlace nonwoven fabric provided in the embodiment o...

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Abstract

The invention provides a preparation method of nano zinc oxide spunlaced nonwoven fabrics. The preparation method of nano zinc oxide spunlaced nonwoven fabrics comprises the following steps: selectively oxidizing viscose fibers to obtain aldehyde adhesive; carrying out graft copolymerization on the aldehyde adhesive and amino starch to obtain modified viscose fibers; carrying out carding, net forming and reinforcing on the modified viscose fibers and polyester fibers to obtain spunlaced nonwoven fabrics; dipping the spunlaced nonwoven fabrics in an aqueous solution of zinc salt; and drying thespunlaced nonwoven fabrics at high temperature to obtain the nano zinc oxide spunlaced nonwoven fabrics. The preparation method of the nano zinc oxide spunlaced nonwoven fabrics has the beneficial effects that the viscose fibers are subjected to activating finishing, and thus, the activity of fibers is improved. Polyester fibers in a certain proportion are added in viscose, and the strength of the fibers can be improved. The modified viscose fibers can adsorb the zinc salt well, and nano zinc oxide is produced on the surface of the nonwoven fabrics under the effect of hot air in an in-situ manner. The preparation method is simple in process, the costs of the produced nonwoven fabrics are not increased obviously, and the obtained nonwoven fabrics have excellent antibacterial property.

Description

technical field [0001] This description relates to the field of textiles, in particular to a method for preparing nano-zinc oxide spunlace nonwovens. Background technique [0002] Spunlace non-woven fabric is to spray high-pressure fine water onto one or more layers of fiber webs to entangle the fibers with each other, so that the fiber webs can be reinforced and have a certain strength. The obtained fabric is spunlace non-woven fabric. Spunlaced nonwoven fabric is soft and has good air permeability. It is mainly used for medical curtains, surgical gowns, surgical covers, medical dressing materials, wound dressings, medical gauze, aviation rags, clothing lining fabrics, disposable materials, towels, cosmetics Cotton, wet wipes, mask covering materials and other medical hygiene fields. [0003] At present, there have been reports on the antibacterial finishing of nano-antibacterial spunlaced nonwovens. Wang Hongbo of Jiangnan University and others have prepared nano-silver a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/4382D06B15/00D06M11/44D06M11/50D06M11/30D06M15/11D06M101/06D06M101/32
CPCD04H1/4382D06B15/00D06M11/30D06M11/44D06M11/50D06M15/11D06M16/00D06M2101/06D06M2101/32D10B2201/24D10B2331/04
Inventor 邱新斌邱一明
Owner JIANGSU DEBANG SANITARY PROD
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