The meaning is H6 is the meaning of plastic tableware.

Melamine (Melamine, MF for short, chemical formula: C3H6N6) plastic tableware belongs to the polymer, its monomer is formaldehyde and melamine. Reaction with 37% formaldehyde aqueous solution, formaldehyde and melamine two monomers of the molar ratio of 2 ~ 3.

The bottom of the triangular mark of the plastic products is equivalent to the product's "identity card", three arrows composed of triangles, meaning that "recyclable Another triangle within the number, such as "1", is a digital sign. Plastic digital symbols range from 1 to 7, with each number representing a plastic material, mainly to facilitate recycling as well as to understand its conditions of use.

Which is labeled "5" of the reuse of the logo of its main manufacturing material for pp. With this material made of plastic containers with good air permeability, heat-resistant temperature and high impact resistance, mechanical properties of the strong and tough, resistant to a variety of organic solvents and acid and alkali corrosion. Mostly used in microwave oven lunch boxes, milk bottles and other plastic containers. Plastic containers produced with pp material is the only can be put into the microwave oven to heat up, can be reused after careful cleaning. However, some microwave oven lunch box box body made of No. 5 pp, but the lid is made of No. 1 PE, so it can not be put into the microwave oven with the box body.

Since the price of amine powder is high, some unscrupulous businessmen, in order to pursue profits, directly use urea-formaldehyde molding powder as raw materials to produce; some in the use of urea-formaldehyde molding powder as raw materials, and then coated with a layer of amine powder on the outer surface of tableware. Tableware made of urea-formaldehyde is harmful to the human body.

Consumers to buy, first of all, to the regular stores, supermarkets to buy, do not be greedy for cheap, in the stalls to buy; secondly, when buying to see whether there is obvious deformation of the utensils, color difference, whether the surface is smooth, the bottom of the bottom of the unevenness, the decal pattern is clear, whether there are wrinkles and bubbles, there are colors of the tableware with a white napkin back and forth to rub whether there is a fading and other phenomena.

Baidu Encyclopedia - Plastic Bottle Bottom Labeling

Baidu Encyclopedia - Diamine Plastic Tableware