Method for pre-judging formaldehyde adsorption quantity in textiles containing adipic acid dihydrazide

An adipic acid dihydrazide and formaldehyde adsorption technology, which is used in measuring devices, instruments, scientific instruments, etc., to reduce economic losses, reduce health hazards, and improve the quality of textiles

Pending Publication Date: 2020-09-15
SHANGHAI INST OF QUALITY INSPECTION & TECHN RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the detection of ADH and formaldehyde are in the stage of independent research at home and abroad. In my country, there are relatively mature national standards and industry standards for the detection of ADH content and formaldehyde content in textiles, but the cumulative relationship between the two is domestic Therefore, in the field of textiles, there is no method for predicting the content of adsorbed formaldehyde by the amount of added adipate dihydrazide.

Method used

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  • Method for pre-judging formaldehyde adsorption quantity in textiles containing adipic acid dihydrazide
  • Method for pre-judging formaldehyde adsorption quantity in textiles containing adipic acid dihydrazide
  • Method for pre-judging formaldehyde adsorption quantity in textiles containing adipic acid dihydrazide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Take 2 representative samples from the underwear, cut them into pieces and mix them evenly, weigh 1g of the samples, place them in a stoppered conical flask, add 25ml of water, extract them ultrasonically for 70min at an extraction temperature of 70°C, filter and wait for Measurement.

[0031] Configure the ADH standard working curve: configure five concentration points of 0.5ppm, 1ppm, 2ppm, 4ppm, and 5ppm, draw the ADH standard working curve, and analyze it with LC-MS / MS; the conditions of the liquid chromatography-mass spectrometer (LC-MS) are as follows: The chromatographic column is Agilent Proshell120Hilic column, 2.7μm, 3.0mm×100mm, column temperature: 40°C; mobile phase: 0.1% formic acid solution and acetonitrile, the gradient elution program used is shown in Table 2, the flow rate is 0.3mL / min, and the injection volume is 1μL ; Monitoring transition (m / z): 175 / 143 (9eV), 175 / 115 (15eV), 175 / 111 (9eV), quantitative transition (m / z): 175 / 143 (9eV) scan.

[0032]...

Embodiment 2

[0037] Take 2 representative samples from the underwear, cut them into pieces and mix them evenly, weigh 1g of the samples, place them in a stoppered conical flask, add 25ml of water, extract them ultrasonically for 70min at an extraction temperature of 70°C, filter and wait for Measurement.

[0038] Configure ADH standard working curve: configure five concentration points of 0.5ppm, 1ppm, 2ppm, 4ppm, and 5ppm, draw ADH standard working curve, and analyze by LC-MS / MS.

[0039] Liquid chromatography-mass spectrometer (LC-MS) conditions are as follows: chromatographic column is AgilentProshell120Hilic post, 2.7 μm, 3.0mm×100mm, column temperature: 40 ℃; Mobile phase: 0.1% formic acid solution and acetonitrile, the gradient elution program that adopts See Table 1, flow rate 0.3mL / min, injection volume 1μL; monitoring ion pair (m / z): 175 / 143 (9eV), 175 / 115 (15eV), 175 / 111 (9eV), quantitative ion pair (m / z): 175 / 143 (9eV) scan.

[0040] The liquid chromatography-mass spectrogram...

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Abstract

The invention discloses a method for pre-judging the formaldehyde adsorption capacity of textiles containing adipic acid dihydrazide. The method is characterized by comprising the following steps: (1)measuring the content of adipic acid dihydrazide in the textile; (2) determining maximum adsorption mass ratio of adipic acid dihydrazide to formaldehyde in the textile according to the storage temperature and the placement time of the textile; and (3) calculating to obtain the maximum formaldehyde adsorption capacity of adipic dihydrazide in the textile, and pre-judging the total content of formaldehyde in the textile. According to the pre-judging method, the content of ADH in the textile is measured, and the content of formaldehyde adsorbed by the product and the maximum content of formaldehyde adsorbed by the product at different temperatures and different storage time are pre-judged; an enterprise is guided to reasonably store textile products added with ADH, so that economic losses caused by unqualified product quality due to storage are reduced; and use is rapid and reliable, and practicability is high.

Description

technical field [0001] The invention relates to the field of textile detection, in particular to a method for predicting the amount of formaldehyde absorbed in textiles containing adipic acid dihydrazide. Background technique [0002] As an important additive, the research, development and application of adipate dihydrazide (ADH) in the textile industry has been rapidly developed. Experiments have shown that ADH can endow textiles with excellent softness, fullness, washability, wear resistance, good resilience, smoothness, good hand feeling, and antistatic properties. It is widely used in home textiles, mattresses, and vehicle seats. In production, the largest annual consumption is the textile industry. It is understood that 80% of composite fabrics will add ADH as an auxiliary agent, especially in bras with embedded sponges. ADH is a compound substance, and its harm is mainly reflected in two aspects: First, ADH is a moderately toxic substance that can irritate the eyes, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/88
CPCG01N30/88G01N2030/884
Inventor 骆迎华王麟谭玉静赵海浪庄园园
Owner SHANGHAI INST OF QUALITY INSPECTION & TECHN RES
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