What issues should be noted when using the raw materials for disposable paper cups?

What issues should be paid attention to when using disposable paper cups in the news channel media?
What issues should be noted when using the raw materials for disposable paper cups?
The most commonly used nowadays is paper plastic cups, with a layer of paper on the outside and a layer of laminated paper on the inside, which is an inner polyethylene plastic film. Although the outer layer is paper, the inner layer that comes into contact with food is plastic film, so there is controversy over whether this type of cup is defined as a disposable paper cup or a plastic cup. In terms of testing, both paper and plastic quality are tested.

Without wax, people may feel that paper plastic cups are safe. In fact, it has the most risk factors. The hygiene hazards of outer paper are very prominent. If the outer layer contains water, mold will form. When paper cups are stacked together, mold on the outside will inevitably contaminate the inside. When using paper cups, be sure to check for moisture and mold. Secondly, it is the ink used for outer printing, which has a strong stimulating odor, usually due to the smell of the ink. If the smell is strong, it may not meet the standard. Many ink components contain benzene and toluene, with benzene being a recognized carcinogen. Countries such as the United States and Japan are using non benzene inks, while China still uses benzene containing inks.

Some paper cups may be made from waste paper, and in order to make them look whiter, manufacturers use bleach during production. Some manufacturers may also use fluorescent powder to increase whiteness. According to national regulations, the use of fluorescent powder in food paper is not allowed. Therefore, the whiter the paper cup, the less safe it is.

The plastic film on the inner side, if it is food grade plastic, meets national requirements and is acceptable. If industrial plastic is used, plasticizers will be added to the paper cup to increase its toughness and rigidity. If the dosage is too large or illegal plasticizers are used, it will be difficult to ensure hygiene conditions.

Dong Jinshi suggests that disposable paper cups should be used sparingly and scientifically. Paper cups of the same color should be used to hold hot drinks and harden when exposed to heat. Plastic cups become harder when they get cold, making them better for holding cold drinks. Paper plastic cups cannot hold oily substances, as oil can penetrate plastics; Due to the strong penetration of fluorescent powder and ink, it can contaminate food. Therefore, it is advisable not to heat and use instant noodle paper boxes in the microwave.