Experts suggest that degradable tableware can be identified by the “look, smell, and tear” method: At first glance, first look at the logo and number of QS on the lunch box; secondly, see whether the surface of the lunch box is smooth, with or without impurities or black spots. Generally speaking, the transparent plastic lunch box is made of pure polypropylene (PP), which has a high safety factor. Bright color lunch boxes may use waste plastic, so the darker the color, the less safe it is. The second touch is the strength of touching the lunch box. The use of recycled waste or the addition of large amounts of industrial grade calcium carbonate and talc produces lunch boxes with poor strength and will break with a gentle tear. The third smell is to smell whether there is any odor in the lunch box, and the qualified lunch box cannot smell it. The characteristics of the “black lunch box” can be summed up in six jingles: soft when squeezed by hand, shattered when lightly torn, pungent smell, easy to leak when deformed by heat, paraffin marks when folded by hand, torn into water and sinking. As long as you remember the above jingle, it is easy to judge whether the disposable lunch box is qualified. skills requirement: Disposable degradable tableware must be made of non-toxic, harmless, clean and non-polluting raw materials that comply with national food hygiene and environmental protection regulations and standards. The following raw materials, additives, coatings and chemicals shall not be used to make or process single-use degradable tableware: 1. Undecontaminated natural materials and their crude products; 2. Failure, deterioration, mildew or contamination; 3. The content of harmful substances does not meet the hygienic standards; 4. Recycle recycled materials; 5. Fluorescent whitening agent. Green packaging must meet three requirements: one is easy to recycle, the other is easy to dispose of, and the third is easy to absorb, that is, easy to be integrated by the natural environment, but even degradable tableware cannot be done in a short time. Many degradable products claim a degradation time of three to six months, but this is actually determined under standard laboratory conditions. In the natural environment, degradation is affected by various factors such as temperature and humidity. For example, if you put the lunch box in a place without water, it will be difficult to degrade. “Under natural conditions, degradation products take at least a year to degrade.
Post time: Aug-15-2022