1. Introduction.
The pure cotton woven fabric has been bleached and added with a fluorescent brightener, and can it still be done with three proofs. I believe that most of the three-proof finishing has encountered this kind of problem. Why do you question the effectiveness of the three defenses?Because there is a mutually exclusive relationship between the fluorescent brightener and the three-proof finishing agent, there are only two results of forcibly doing the three-proof treatment: 1. The three-proof meets the requirements, but the fabric is yellow and hard;2. The color and hardness of the fabric have not changed, but the waterproof, oil-proof and anti-fouling effect has deteriorated or not.
So is there any way to solve the problem that the initial waterproof requirements are 90 points, and the fabric is not yellowing and not hardening?Xinshengyang's 15-year R&D engineer will tell you.
Second, the solution.
First of all, if the fluorescent brightener is baked at high temperature, the yellowing of the fabric is inevitable. Therefore, it is necessary to choose a three-proof finishing agent that can be baked at low temperature (such as: XSY-C611 low-temperature C6 waterproofing agent);Secondly, after determining the type of additives, the baking temperature was investigated, so the selected XSY-C611 low-temperature C6 waterproofing agent could achieve a minimum of 100 cross-linking and film formation, so it was necessary to investigate the baking temperature between 100-130Finally, in terms of the dosage of the three-proof finishing agent, such as the case of low baking temperature, the three-proof finishing agent can be increased to solve the problem of the three-proof finishing effect.
3. Test results and program selection.
Recipe & Results:
1. Waiting rate.
Dry cloth: 1703g
Wet cloth: 2977g
Start planning my 2024 2, test results.
Through the above ** data, it is recommended to use XSY-C611 low-temperature C6 waterproofing agent: 80g L, HAC: 0The formula of 5g l, one soaking and one rolling (pressure: 3kg) drying and baking (120 x3min) process. Pilot test, waterproof effect and fabric yellowing, feel are up to the requirements.