Overview of related requirements for raw materials for plastic bottles

1, the raw material resin itself is non-toxic, odorless and safer.

2, ink, mostly solvent-based.

3, color masterbatch (ie, coloring agent), can be divided into two kinds of dyes and pigments.

Dyes are organic compounds that are soluble in organic solvents;

Pigments can be divided into organic compounds and inorganic compounds, and are less soluble in organic solvents.

In addition, since some dyes and pigments are heavy metal (such as cadmium, lead, selenium) compounds and organic amine compounds, they should be limited to use.

Second, the original and auxiliary materials may appear quality problems

1) Use recycled materials;

2) Use industrial-grade raw materials;

3) The raw materials used are contaminated;

4) The raw materials used do not meet the corresponding resin hygiene standards;

5) The types and amounts of additives used are not in conformity with the provisions of GB9685-2003, but there is no safety evaluation quality certificate.

(3) Quality problems caused by raw and auxiliary materials

The use of raw and auxiliary materials is problematic. Failure to comply with the requirements will result in:

1, the product sensory difference;

2, poor physical and mechanical properties;

3, excessive levels of harmful substances and so on.

(d) Requirements for the selection of raw and auxiliary materials

1, choose to use raw materials that meet the requirements of health standards;

2. The selection and use of additives should meet the requirements of GB9685-2003 Hygienic Standards for the Use of Additives for Food Containers and Packaging Materials;

3, if the enterprise needs to use additives other than the standard, it must provide the corresponding quality and safety certification.

4, in the production of strict control of production formula and process conditions;

5. If raw and auxiliary materials used are products subject to production license management, certified products must be used.