Formaldehyde removing reagent for treating formaldehyde-containing fabric, and use method thereof

A formaldehyde and reagent technology, which is applied in the field of formaldehyde remover for fabrics containing formaldehyde, can solve the problems of low concentration of additives, difficulties, and unstable effects, etc., and achieve the effect of improving the composition and efficacy of reagents and excellent performance

Inactive Publication Date: 2012-10-24
南京北福泉圣环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the concentration of additives is not high, so it is more difficult to remove the slowly released formaldehyde on solid substances, and the effect will not be too stable.
[0004] Tang Xingfu et al. (Research on the removal of formaldehyde by manganese oxide molecular sieve at low temperature, "Abstracts of the Fifth National Environmental Chemistry Conference", 2009) studied the pore effect of manganese oxide molecular sieve removal of formaldehyde and the valence effect of silver doping. This catalytic method has high efficiency in treating formaldehyde, but carbon dioxide will be released during the process, and it is not suitable for textiles

Method used

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  • Formaldehyde removing reagent for treating formaldehyde-containing fabric, and use method thereof
  • Formaldehyde removing reagent for treating formaldehyde-containing fabric, and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The formaldehyde-containing fabric is 50g of 53% viscose fiber and 47% cotton.

[0022] In the stirrer, add 2-azolidinone of 25g, the nano-titanium dioxide of 1g (average particle diameter 35nm, Shenzhen Jing material Chemical Co., Ltd.), 15g sodium dodecylbenzene sulfonate, 5g diatomaceous earth, 5g ethanol, 49g of distilled water was stirred at room temperature at a speed of 240 rpm for 3 minutes to prepare 100g of formaldehyde-removing reagent that was uniformly mixed.

[0023] The above-mentioned formaldehyde-removing reagent is added into water and mixed to form a treatment solution, and the above fabrics are soaked in the treatment solution, and the treatment solution submerges the fabric. After soaking at room temperature 25°C for 20 minutes, rinse the formaldehyde-removing agent on the clothes with clean water to remove formaldehyde.

[0024] figure 1 It embodies the situation that the formaldehyde content of the fabric containing formaldehyde is detected befo...

Embodiment 2

[0030] The formaldehyde-containing fabric is 50g of clothes with 5% nylon, 60% cotton, and 35% cotton.

[0031]Add 34g sodium hypochlorite, 2g nano-zinc dioxide (average particle size 35nm, Shenzhen Jingcai Chemical Co., Ltd.), 16g sodium lauryl sulfate, 5g ethanol, 4g activated carbon (fruit shell / coconut shell type activated carbon, Nanjing Hansen Purification Engineering Co., Ltd.), 39g distilled water, stirred at room temperature with a rotating speed of 240 rpm for 3 minutes to prepare a uniformly mixed 100g formaldehyde removal reagent.

[0032] The above-mentioned formaldehyde-removing reagent is added into water and mixed to form a treatment solution, and the above fabrics are soaked in the treatment solution, and the treatment solution submerges the fabric. After soaking at room temperature 25°C for 20 minutes, rinse the formaldehyde-removing agent on the clothes with clean water to remove formaldehyde.

[0033] HPLC Same as Example 1, the formaldehyde content befo...

Embodiment 3

[0035] The formaldehyde-containing fabric is 50g of 63% polyester fiber, 33% viscose fiber, and 4% spandex.

[0036] Add 20g of 2,4-dinitrophenylhydrazine, 15g of sodium lauryl sulfate, 5g of ethanol, 10g of polyoxyethylene amide, and 5g of silicon carbide (brand: green silicon carbide micropowder for photovoltaic industry, Jiangsu Beisi Special silica powder Co., Ltd.), 2g iron powder (average particle size 200-500nm, Beijing Chemical Reagent Company, analytically pure), 43g distilled water, stir at room temperature with a rotating speed of 240 rpm for 3 minutes to prepare 100g of evenly mixed powder formaldehyde reagent.

[0037] The above-mentioned formaldehyde-removing reagent is added into water and mixed to form a treatment solution, and the above fabrics are soaked in the treatment solution, and the treatment solution submerges the fabric. After soaking at room temperature 25°C for 20 minutes, rinse the formaldehyde-removing agent on the clothes with clean water to rem...

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Abstract

The present invention provides a formaldehyde removing reagent for treating a formaldehyde-containing fabric, and a use method thereof. The reagent comprises the following raw materials, by weight, 20-50% of a reaction agent, 0.5-5% of a catalyst, 1-10% of a volatilization promoting agent, 10-40% of a surfactant, and the balance of water, wherein the reaction agent is one or a plurality of matters selected from easily-water-soluble alkaline materials and organic matters widely existing in polyphenol plants, the catalyst comprises at least one selected from metal powder or a nano-scale metal oxide, the volatilization promoting agent comprises at least one selected from active carbon, diatomite and silicon carbide, and the surfactant comprises one or a plurality of matters selected from an easily-biodegradable nonionic surfactant, a commonly used anionic surfactant and an alcohol. The formaldehyde removing reagent of the present invention has characteristics of excellent formaldehyde removing performance, convenience, rapidness, high efficiency and low consumption, can remove most of formaldehyde in a variety of fabrics, and is a good fabric formaldehyde removing reagent.

Description

technical field [0001] The invention relates to the field of washing and dyeing of textiles, in particular to a formaldehyde-removing agent for treating formaldehyde-containing fabrics and a method for using the same. Background technique [0002] Formaldehyde is a colorless gas with a pungent odor, easily soluble in water, alcohol and ether. Formaldehyde has a wide range of uses in industry. It is often used in textiles, dyes, leather, resins, paints, plastics, rubber, pharmaceuticals, explosives, etc. Therefore, formaldehyde pollution mainly comes from the above products. The harm of formaldehyde to the human body is mainly manifested in the following aspects: formaldehyde can combine with the protein in the protoplasm of somatic cells, change the internal structure of the protein and solidify, so it has biocidal power. At low concentrations, it initially irritates the mucous membranes of the eyes, and at high concentrations, it irritates the upper respiratory tract, ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M13/352D06M11/46D06M13/256D06M11/79D06M11/30D06M11/44D06M11/74D06M13/338D06M15/285D06M11/77D06M11/83D06M13/152D06M11/38D06M11/49D06M15/53D06M101/06D06M101/34D06M101/28D06M101/12D06M101/32D06M101/38
Inventor 龚罗芊
Owner 南京北福泉圣环保科技有限公司
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