DuPont three-proof finishing agent testing grade classification
Introduction to commonly used testing standards for three-proof finishing agents
(Water-proof, oil-proof, easy decontamination detection–Chemical industry)
This article is written by the technical department of Wujiang Chemical Additives Co., Ltd. The chemical industry sells three-proof finishing agent. The product has outstanding performance and can apply for hanging tags and work clothes
1. Water repellency level test
1.1 Water repellency test according to 3 M-Ⅱ-1988 Method.
Mix isopropyl alcohol and water in different proportions as shown in the table to prepare a standard test solution system. Starting from the low-level reagent, put a drop of liquid on the surface of the sample cloth to be tested. If it does not wet within 10 seconds, it is considered a pass, and it will not pass until it fails. The passing level is the product’s water repellency level.
Table 1 3M-Ⅱ-1988 water repellency test reagent
|
Water repellency level |
Isopropyl alcohol (wt%) |
Deionized water (wt%) |
|
1 |
2 |
98 |
|
2 |
5 |
95 |
|
3 |
10 |
90 |
|
4 |
20 |
80 |
|
5 |
30 |
70 |
|
6 |
40 |
60 |
|
7 |
50 |
50 |
|
8 |
60 |
40 |
|
9 |
70 |
30 |
|
10 |
80 |
20 |
|
11 |
90 |
10 |
|
12 |
100 |
0 |
 ��, then drip the test liquid with a higher number onto the fabric. The experiment was continued until the test liquid wetted the fabric below and around the droplet within 30 s. The oil repellency level of the fabric is expressed by the high-numbered experimental liquid that cannot wet the fabric within 30 s.
Oil repellency level test
Table 2 AATCC-118 oil repellency test reagent
|
Oil repellency grade |
Standard test liquid system |
Surface tension （mN/m, 25oC） |
|
1 |
White Mineral Oil |
31.2 |
|
2 |
White mineral oil: n-hexadecane = 65:35 (V/V) |
28.7 |
|
3 |
n-Hexadecane |
27.1 |
|
4 |
N-Tetradecane |
26.1 |
|
5 |
n-Dodecane |
25.1 |
|
6 |
n-decane |
23.5 |
|
7 |
n-octane |
21.3 |
|
8 |
n-heptane |
19.8 |
3, Easy stain removal performance test
Refer to AATCC130-2000 (FZ/T10012-1998) “Decontamination and Oil Stains Removal Method” for testing.
The oil used in the test is corn blended oil, which is washed with a fully automatic drum washing machine at a washing temperature of 40°C and a washing powder dosage of 2g/L.
Wujiang Chemical Additives Co., Ltd. provides DuPont three-proofingteflon auxiliaries, ecological three-proofing finishing agents, and nano-three-proofing additives.
Sales hotline: 400-0909-770, Tel: 0512- Fax: 0512-63063029 Website: www.jtaike.com
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