Plastics are an important raw material in the packaging industry of cosmetic tube manufacturers. Plastic processed products emit an unpleasant odor. To overcome this problem, plastic resin producers have long been working to reduce the emission level of these odors. Solutions include: replacing low-odor alternatives with unpleasant additives; reducing the amount of residual monomers in plastics; adding gas sorbents to plastics and adding antibacterial agents to prevent the development of bacteria and fungi Smell smell; in the process of recycling plastics, solvent extraction and venting can be used to reduce residual odor.
Cosmetic tube manufacturers can also remove odors by treating plastic granules with a special detergent solution. Generally these detergents are aqueous or alkaline solutions containing surfactants. These detergents can effectively remove vinyl chloride monomer, styrene, acrylate, acrylic monomer and unsaturated hydrocarbons.
The first step in objectively confirming the smell is to let a group of people identify whether it is pleasing or unpleasant to distinguish the smell they smell. According to the identification of the identification team, standard instrumental analysis methods such as gas chromatography, solid state spectroscopy (GS/MS), etc. are used to determine the grade of plastic volatiles. But these older instrumental analysis systems require expert analysis and evaluation to arrive at accurate conclusions. The new plastic odor detector is an "electronic nose" device that relies on electronic probe dot matrix and pattern recognition technology to work. The instrument operator heats the sample and directs the released volatiles into the probe array for detection. The results obtained are displayed in digital mode, which makes it easy to correlate with the conclusions of the discrimination panel. Depending on the specific requirements, volatile odors can be classified as pleasant, neutral, unpleasant, or reported in terms of strength and molecular aggregation.
