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Preparation method of wool self-cleaning fabrics

A self-cleaning and wool technology, applied in the field of wool self-cleaning fabric preparation, can solve problems such as hindering the practicality of wool fibers, difficult application of colloids, weak wettability of wool fibers, etc., achieving broad application prospects and development prospects, and low cost. , the preparation method is simple

Inactive Publication Date: 2010-05-05
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, the essential properties of wool fibers, such as mechanical and physical properties, will decline after self-cleaning treatment, which hinders the practicality of self-cleaning wool fibers
In addition, the weak wettability of wool fibers makes TiO 2 Colloids are difficult to apply to large-scale production in factories

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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  • Preparation method of wool self-cleaning fabrics
  • Preparation method of wool self-cleaning fabrics
  • Preparation method of wool self-cleaning fabrics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) Preparation of anatase nano-titanium dioxide sol

[0033] Stir 4-isopropoxide titanium with a mass fraction of 97%, glacial acetic acid and 37% hydrochloric acid at 60°C for 12 hours to form a stable and transparent sol, then add wetting agent Tween 80, the molecular formula is as follows

[0034] Wherein the concentration ratio of titanium 4-isopropoxide, glacial acetic acid and hydrochloric acid is 1:1:0.28, and the wetting agent accounts for 0.1% of the mass of the sol;

[0035] (2) Surface self-cleaning finishing

[0036] The woolen fabric was pre-cleaned with Sandoclean PC non-ionic detergent, owf: 2%, at 40°C for 30 minutes to remove impurities before self-cleaning finishing, and the dried sample was soaked in titanium dioxide sol for 10 minutes, and washed at 1.75kg / cm 2 Roll the cloth on a padding car with a rotation speed of 7.5rpm, preheat the sample at 50°C for 2 minutes in the oven, and then bake the sample at 110°C for 2 minutes in the oven;

[0037...

Embodiment 2

[0044] (1) Preparation of anatase nano-titanium dioxide sol

[0045] Stir 4-isopropoxide titanium, glacial acetic acid and 37% hydrochloric acid at 63°C for 14 hours with a mass fraction of 97% to form a stable and transparent sol, then add wetting agent Triton 100 Tween 80, its molecular formula is as follows :

[0046] Wherein the concentration ratio of titanium 4-isopropoxide, glacial acetic acid and hydrochloric acid is 1.2: 1.2: 0.35, and the wetting agent accounts for 0.3% of the mass of the sol;

[0047] (2) Surface self-cleaning finishing

[0048] The woolen fabric was pre-cleaned with Sandoclean PC nonionic detergent, owf: 3%, at 43°C for 37 minutes to remove impurities before self-cleaning finishing. Immerse the dried sample in titanium dioxide sol for 15 minutes, and 2 Roll the cloth on a paddle car with a rotation speed of 7.5rpm, preheat the sample at 60°C for 3 minutes in the oven, and then bake the sample at 115°C for 2.5 minutes in the oven.

[0049] (3) ...

Embodiment 3

[0056] (1) Preparation of anatase nano-titanium dioxide sol

[0057] The mass fraction is 97% (titanium 4-isopropoxide, glacial acetic acid and 37% hydrochloric acid are stirred at 65 ℃ for 16 hours to form a stable and transparent sol, then add wetting agent Triton 100, its molecular formula is as follows :

[0058] Wherein the concentration ratio of titanium 4-isopropoxide, glacial acetic acid and hydrochloric acid is 1.5: 1.5: 0.45, and the wetting agent accounts for 0.5% of the mass of the sol;

[0059] (2) Surface self-cleaning finishing

[0060] The wool fabric was pre-cleaned with Kieralon OL non-ionic detergent, owf 4%, at 45°C for 45 minutes to remove impurities before self-cleaning finishing. The dried sample was immersed in titanium dioxide sol for 20 minutes, and the 2 Roll the cloth on a paddle car with a rotation speed of 7.5rpm, preheat the sample at 70°C for 5 minutes in the oven, and bake the sample at 120°C for 3 minutes in the oven.

[0061] (3) Silico...

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Abstract

The invention relates to a preparation method of wool self-cleaning fabrics, comprising the following steps: (1) stirring 4-titanium isopropylate with the mass percent of 97%, glacial acetic acid and 37% of hydrochloric acid, and adding wetting agent; (2) pre-cleaning wool fabrics, soaking into the titanium dioxide sol, rolling cloth on a rolling machine with the rotating speed of 7.5 rpm under the pressure of 1.75-3kg / cm<2> and baking; and (3) dipping into organic silicon finishing liquor and processing at 35-65 DEG C and airing. The invention has simple preparation method, low cost and is fit for industrial production; and the obtained fabrics have good and long-lasting self-cleaning effect.

Description

technical field [0001] The invention belongs to the field of preparation of self-cleaning fabrics, in particular to a preparation method of wool self-cleaning fabrics. Background technique [0002] Since the discovery of TiO in the 1960s 2 Electrode extremely fast photocatalytic water, scholars have strengthened the research on photoelectrochemistry. With the advancement of nanotechnology, the photocatalytic function endows the material with self-cleaning properties, which can introduce strong oxidation efficiency through incident light to degrade pollutants, such as dust, stains, and harmful microorganisms. Because this property is very attractive in different applications, this new concept has received high attention in the past decade. Among all photosensitive semiconductors, titanium dioxide, especially the nanocrystalline form of anatase, is considered to be the most promising photocatalyst because of its special physicochemical properties, highly efficient photocatal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/46D06M13/224D06M13/165D06M15/643D06M101/12
Inventor 何瑾馨刘保江高品王振华刘路赵强强徐斗峰王红丽胡成佐宣建瞿建刚
Owner DONGHUA UNIV
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