Application of spectral detection in detecting the quality of modified film cloth, detection method and detection equipment
A spectral detection and modification technology, applied in the measurement of color/spectral characteristics, manufacturing computing systems, etc., can solve the problems of invisible, difficult to directly detect, and difficult to detect macromolecular unzipping, so as to improve detection efficiency and ensure production. High-quality, high-precision results
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Embodiment 1
[0045] The application of spectroscopic detection or spectrometer in the quality detection of modified film cloth.
[0046] Spectral detection or spectrometer can detect the skin feel properties of the modified film cloth, and more specifically, can detect the total amount of coating liquid, viscosity, etc. of the modified film cloth.
1.1
[0047] In this example, the Agilent Cary630 infrared spectrometer is used as an example to verify whether polysaccharides can be detected on the mask fiber substrate. The content of polysaccharides can directly affect the viscosity. The characteristic peaks of polysaccharides are used as distinguishing characteristic peaks to distinguish qualified products from unqualified products. .
[0048] Test samples using the Cary630 Attenuated Total Reflection (ATR) accessory such as figure 1 Shown is the spectrum of the blank sample collected by ATR, such as figure 2 As shown, the blank sample was found to be cellulose by spectral search.
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Embodiment 2
2.1
[0053] A method for online detection of the quality of modified film cloth based on spectral detection, comprising the following steps:
[0054] Step 1, use the spectrometer to calibrate the spectrograms of the qualified modified film cloth and the unqualified modified film cloth respectively;
[0055]Step 2, establishing a relationship model between the spectrum of the modified film cloth and the viscosity of the modified film cloth, skin feel properties or the amount of coating liquid;
[0056] Step 3, set up the spectrometer with the relationship model established on the production line of the modified film cloth to detect the modified film cloth;
[0057] For example, a mask with sodium hyaluronate and Tremella polysaccharide, using two indicators: viscosity (200-400cps is qualified) and coating amount (500-800mg / piece is qualified), first calibrate the spectrum of qualified products (because The characteristic peaks are actually easy to be "buried" into the overall...
Embodiment 3
[0066] A detection device for online detection of the quality of modified film cloth, comprising a spectrometer, a main control module and an alarm module erected on a modified film cloth production line, the spectrometer communicates with the input end of the main control module, the alarm module In communication with the output end of the main control module, the spectrometer is driven by a linear feeding mechanism to move synchronously on one side of the modified film cloth production line.
[0067] The linear feed mechanism adopts a lead screw or a linear motor device to drive the position of the spectrometer to change. The spectrometer can only detect the spot area at a time. For more uniform sampling, the spectrometer can be reciprocated and the sampling positions are more diverse.
[0068] When the spectrometer detects an abnormality, for example, when the peak height of a characteristic peak is lower than the threshold range, or when a characteristic peak is lost, the s...
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