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Antimicrobial textile

A fabric and biocidal technology, applied in the direction of fabrics, textiles, textiles and papermaking, etc., can solve problems such as no longer having long-term effects, and achieve the effects of providing ecological benefits, prolonging the active time, and providing economic benefits

Inactive Publication Date: 2009-07-08
THOR GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it no longer has long-term effects

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 and comparative example 1

[0082] The Examples and Comparative Examples described below illustrate the effect of encapsulated OIT. Fabrics finished with the microparticles of the present invention were compared to fabrics finished with dispersed OIT.

[0083] In order to study the effect of fabrics finished according to the invention, various fabric samples with a size of 40 x 40 cm were dipped in a solution containing 30 g / l of a composition containing approximately 10% of such particles in a strength (strength) of the composition. In the aqueous solution, or dipped in the aqueous solution containing the corresponding amount of the comparative product (the comparative product contains conventionally dispersed OIT). 30 g / l of Quecophob GAR (fluorocarbon resin; available from THOR GmbH) was added as slurry aid. The fabric samples were then squeezed through a pad-mangle, dried at 120°C for 1 minute and cured at 150°C for 1 minute. Prior to drying, additional additions were determined and used to estimat...

Embodiment 2 and comparative example 2

[0088] Some fabric samples finished according to this example were treated with water ("soaked") for 24 hours and their active ingredient content was subsequently investigated. Table 2 lists the concentrations of active ingredients before and after water immersion.

[0089] Table 2: Results of Examples and Comparative Examples about the loss of active ingredients during fabric immersion

[0090]

[0091] The values ​​listed in Table 1 and Table 2 clearly show the advantage of the present invention of encapsulating the active ingredient in microparticles. After subsequent heat treatment and water immersion, fabrics finished with encapsulated or encapsulated OIT had significantly higher detectable active components than fabrics finished with conventional methods. From the above experimental results it is clear that the encapsulation of the biocidal active ingredient reduces the loss and escape of the biocidal active ingredient to the air / environment and also results i...

Embodiment 3 and comparative example 3

[0093] The antifungal properties of the polyester samples prepared according to Example 1 and Comparative Example were tested according to German standard specification DIN53931. The results are shown in Table 3.

[0094] Table 3: The results of the inhibitory effect of encapsulated OIT on fungi in Examples and Comparative Examples

[0095]

Material Encapsulated OIT

[growth area] Decentralized OIT

[growth area] Aspergillus niger, original (0) 4 / 5 Aspergillus niger, 24h, soaked in water (0) 5 / 5 Chaetomium globosa, the original (0) 4 / 4 Chaetomium globosa, 24h, soaked in water (0) 5 / 4 Penicillium fungiformis, the original (0) 4 / 3 Penicillium fungus, 24h, soaked in water (0) 4 / 4

[0096] The evaluation protocol for DIN 53931 (Test for fungicidal effects) is shown below.

[0097] Growth area

[0098] 00 No growth on the entire board

[0099] 0 There is a zone of inhibition around the sample Anti-fungal ...

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PUM

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Abstract

The invention relates to a textile which is equipped with a biocidal substance. The textile according to the invention is characterized in that 2-n-octyl-4-isothazoline-3-on is contained as the biocidal substance and optionally one or more other biocides, and in that the biocidal substance is embedded in aminoplastic resin microparticles. By embedding the biocidal substance in the microparticles the biocidal substance remains on the textile during drying and condensation while the textile is finished. In practice, the biocidal substance is released only slowly and is not washed out when the textile is exposed to rain or soaked, thereby preventing the biocidal substance from escaping largely already when the textile is finished or preventing it from being washed out from canvas, awnings, filters, tarpaulin, shower curtains and the like after a few downpours.

Description

technical field [0001] The present invention relates to a fabric finished with at least one biocidally active ingredient acting as an antimicrobial agent. The biocidally active ingredient is encapsulated in an aminoplast-based resin. Such encapsulated biocidal active ingredients are useful as fabric aids for finishing fabrics such as tents, tarpaulins, tarpaulins, shower curtains, nonwovens, filters, blankets, and the like. Background technique [0002] Most fabrics contain microbially degradable materials. They are made wholly or partly of microbiologically degradable fibers such as cotton, hemp, flax, linen, viscose, Tencel, cellulose acetate, silk, wool. When fabrics made of synthetic fibers (such as polyester, polyacrylonitrile, polyamide, polypropylene, Nomex (a synthetic fiber product of DuPont), aramid) have a finish (such as size, winding oil, spinning oil, softener, plasticizer, hydrophobic agent (hydrophobicizer), antistatic agent and / or adhesive), or carry micr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M16/00D06M23/12
CPCD06M16/00D06M23/12Y10T442/2041Y10T442/2525
Inventor 福尔克尔·布茨托马斯·席韦克
Owner THOR GMBH
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