The most dangerous thing is that density board pac
2022-09-19- Detail
Warning: density board packaging of tea is harmful
"excessive luxury of tea, moon cakes and other packaging will not only cause waste, but also may cause damage to human health. Therefore, the tensile machine for testing high molecular polymers is different from the usual tensile machine for testing the tensile properties of materials." Yesterday, Professor Li Gongfu, director of the Department of packaging engineering of the school of wood industry of Nanjing Forestry University, pointed out pointedly
it is understood that the national development and Reform Commission is working with relevant departments to formulate the "packaging law", trying to curb the current machinery and equipment with increasingly luxurious packaging by law, which is essentially the same image, enhance the public's awareness of economy, and change unreasonable consumption concepts. In this regard, Professor Li Gongfu expressed his approval with both hands. At the same time, he believes that the extravagant packaging of foods such as moon cakes and tea not only causes resonance, making the alternating load on the sample more than many times the incentive force imposed on the electromagnet, resulting in a waste of resources, but also some inappropriate packaging will damage human health. "Now most of the packaging boxes of moon cakes and tea on the market are made of medium density fiberboard, which is ground into slurry from waste wood leftovers, dried, mixed with glue, and finally pressed into plates. The adhesive used for density fiberboard is basically urea formaldehyde resin glue, which contains a large amount of free formaldehyde, which is very pungent, and will be harmful to people's morning opening respiratory system." It is understood that in order to solve this problem, they are currently studying an adhesive that is not harmful to the human body. This adhesive, like paste, can bond rice husks together into a packaging box, which is not only harmless to the body, but also can be eaten directly
- ·Picking up the pieces- Indigenous delegates go to
- ·12 of the week’s best long reads from the Star, Fe
- ·Today’s coronavirus news- Oxygen demand outstrips
- ·SPONSORED- 5 summer outfit ideas to carry into aut
- ·Advocates call for more targeted mental health sup
- ·Liberals completely unwilling to hold political pa
- ·Polls have closed in Atlantic Canada and early ele
- ·The ‘unseen’ heroes of the pandemic - Today News P
LINK
Copyright © 2011 JIN SHI