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Method for detecting corrosion resistance of metal zipper

A metal zipper and corrosion resistance technology, which is applied in the field of corrosion resistance detection of metal zippers, can solve the detection method of corrosion resistance of the main material without the metal zipper coating, can not respond well to the discoloration and corrosion of the zipper, and cannot meet the detection of clothing enterprises. Quantity and other issues, to achieve the effect of shortened test time, low cost, suitable type and concentration

Inactive Publication Date: 2017-08-04
LILANG CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Through the above comparative analysis, the existing metal product anti-corrosion testing standards cannot simulate the actual clothing storage oxidation environment due to the test environment and test medium, so it cannot reflect the discoloration and corrosion of zippers well.
At present, there is no specific testing method for the metal zipper coating and the corrosion resistance of the main material
In addition, the above two national standard detection methods use more complicated equipment and longer detection time, which cannot meet the requirements of large detection volumes for apparel companies

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 1. Prepare the corrosion solution

[0032] Take 2.3mL of acetic acid, add the third-grade water with a temperature of 23°C and a conductivity not higher than 0.50mS / m, and prepare an acetic acid solution with a concentration of 4.8%.

[0033] 2. Preparation of test samples

[0034] Take 4 pieces of the same metal zippers that are clean and unpolluted, and take three sections of zippers with a length of 10cm from 3 of them for testing, and keep the other one for comparison of discoloration before and after oxidation.

[0035] 3. Test

[0036] (1) Take 48mL of the prepared 4.8% acetic acid solution and pour it into a glass beaker;

[0037] (2) Put the beaker containing the acetic acid solution into a polyethylene bag and place it in a horizontal state;

[0038] (3) Put the test zipper into the above-mentioned polyethylene bag synchronously. The zipper should not be in contact with the acetic acid solution. After placing it, seal the polyethylene bag to prevent the acet...

Embodiment 2

[0047] 1. Prepare the corrosion solution

[0048] Take 2.5mL of acetic acid, add tertiary water with a temperature of 25°C and a conductivity not higher than 0.50mS / m, and prepare an acetic acid solution with a concentration of 5%.

[0049] 2. Preparation of test samples

[0050] Take 4 clean and unpolluted identical metal zippers, take three sections of zippers with a length of 12 cm from 3 of them for testing, and keep the other one for comparison of discoloration before and after oxidation.

[0051] 3. Test

[0052] (1) Take 50mL of the prepared 5% acetic acid solution and pour it into a glass beaker;

[0053] (2) Put the beaker containing the acetic acid solution into a sealable glass vessel and place it in a horizontal state;

[0054] (3) Put the test zipper into the above-mentioned glassware synchronously. The zipper should not touch the acetic acid solution. After placing it, seal the sealed glassware to prevent the acetic acid from volatilizing to the outside to red...

Embodiment 3

[0063] 1. Configuration of corrosion solution

[0064] Take 2.7mL of acetic acid, add tertiary water with a temperature of 27°C and a conductivity not higher than 0.50mS / m, and prepare an acetic acid solution with a concentration of 5.2%.

[0065] 2. Sample preparation

[0066] Take 4 clean and unpolluted identical metal zippers, take three sections of zippers with a length of 15 cm from 3 of them for testing, and keep the other one for comparison of discoloration before and after oxidation.

[0067] 3. Test

[0068] (1) Take 52mL of the prepared 5.2% acetic acid solution and pour it into a glass beaker;

[0069] (2) Put the beaker containing the acetic acid solution into a sealable plastic container and place it in a horizontal state;

[0070] (3) Put the test zipper into the above-mentioned plastic container synchronously. The zipper should not be in contact with the acetic acid solution. After placing it, seal the plastic container to prevent the acetic acid from volatil...

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Abstract

The invention provides a method for detecting the corrosion resistance of a metal zipper. The method comprises the following steps of (1) preparation of a corrosion liquid: preparing an acetic acid corrosion liquid; (2) preparation of a test sample: taking a metal zipper sample with a specified length; (3) test: putting the zipper sample and a beaker containing the corrosion liquid into a sealed container, keeping in constant-temperature and constant-humidity sates for a period of time, taking the container out and taking the zipper out and naturally drying at a room temperature; and (4) rating, namely rating the color change condition of the zipper by adopting a GB / T 250 ''grey scale for evaluating color change through textile color fastness test''. Compared with currently common GB / T 10125-2012 and GB / T 19746-2005, the method for detecting the oxidation resistance and the corrosion resistance specifically designed for the metal zipper is capable of more fully simulating the oxidation, color change and corrosion processes of the zipper in the using process in the aspects such as a test atmosphere and a rating method, and is short in test period, simple in equipment, easy to operate and relatively low in cost.

Description

technical field [0001] The invention belongs to the field of metal anticorrosion, and in particular relates to a method for detecting the anticorrosion performance of metal zippers. Background technique [0002] Metal zipper is a kind of zipper, which refers to the zipper whose teeth are made of copper or aluminum. Compared with nylon zipper and injection molded zipper, it is stronger and more costly. It is mostly used in jeans, leather jackets and high-end zippers. on the bag. The teeth of metal zippers have different colors after electroplating. Common electroplating tooth colors include green bronze, red bronze, black bronze, white copper, gold copper, black gold copper and so on. [0003] During the use of metal zippers on clothing, its coating and materials will rust, oxidize, blister, and appear streaks due to the erosion of the surrounding air or environment, which will affect the appearance and performance of the zipper. Therefore, metal zippers need to be tested b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N17/00
CPCG01N17/006
Inventor 陈国仲高兵陈文娥李洪欧锦蓥史志颖
Owner LILANG CHINA