PVC plastic boxes are widely used in the packaging industry, but sometimes there is an odor problem, which not only affects the product quality image, but is also closely related to consumer acceptance.
First of all, the reason why PVC plastic boxes produce odors mainly comes from their raw materials and processing. PVC resin itself may have some low-molecular substances, and additives such as plasticizers and stabilizers added during processing may also emit odors. For example, some inferior plasticizers will decompose and produce pungent odors after being heated or stored for a long time. In addition, too high processing temperature or too long processing time will cause partial decomposition of PVC materials, further aggravating the odor.
Secondly, there are a variety of control technologies for odor problems. In terms of raw material selection, the use of high-purity, low-residue PVC resin and the screening of high-quality, low-odor additives are key steps. For example, the use of environmentally friendly plasticizer substitutes can effectively reduce odor generation. In terms of processing technology, optimize processing parameters, accurately control temperature, time and pressure, and avoid excessive processing. At the same time, devolatilization technology, such as vacuum degassing treatment, can be used to extract low-molecular volatiles during the plastic box molding process to reduce odor concentration. In addition, adding odor absorbers or masking agents is also a common method. They can react with odor molecules or mask the odor, so that the odor of plastic boxes is improved.
Furthermore, consumer acceptance is significantly affected by odor. When a plastic box has a noticeable odor when it is opened, consumers tend to question the quality of the product and even worry about it being harmful to health, which reduces their willingness to buy. Especially for odor-sensitive product packaging such as food and cosmetics, consumers have higher requirements for no odor. Even if the product itself is of good quality, the poor packaging odor may cause damage to the brand image and reduce market competitiveness.
Finally, in order to improve consumer acceptance, companies should not only focus on the application of odor control technology, but also strengthen communication with consumers. Indicate on the product packaging that environmentally friendly and low-odor materials and processes are used to increase consumer trust. At the same time, market research can be carried out to understand consumers' perception thresholds and preferences for odors, so as to further optimize odor control strategies so that PVC plastic boxes can meet consumer expectations in terms of odor while meeting functional requirements, and promote product sales and promotion in the market.
