GB 4806.15-2024National food safety standard - Adhesives for food contact materials and products (English PDF)

1 Scope

This standard applies to adhesives for food contact materials and products.

2 Terms and definitions

3 Product categories

Adhesives for food contact materials and products can be divided into two categories, according to whether they are in direct contact with food:

- Adhesives for direct contact with food: Adhesives used on the food contact surfaces of food contact materials and products, that are expected to be in direct contact with food.

- Adhesives for indirect contact with food: Adhesives used on non-food contact surfaces of food contact materials and products, that are not expected to be in direct contact with food, but whose components may be transferred to food.

4 Basic requirements

4.1 Adhesives used for food contact materials and products shall comply with the requirements of GB 4806.1.

4.2 For adhesive manufacturers for food contact materials and products, it shall control the safety risks of adhesive products, through formula design, raw material selection, production process control, product information transmission, etc.

4.3 Enterprises, that use adhesives for food contact materials and products, shall control safety risks derived from adhesives, through packaging design such as seams and edges, adding effective barrier layers, curing process control, product information transmission, etc. When it can achieve expected results, it shall minimize the use amount and residue amount of adhesives.

5 Technical requirements

6 Others

Appendix A Allowable basic raw materials and usage requirements for adhesives for direct

A.1 Table A.1 specifies the list of basic raw materials allowed to be used in adhesives for direct contact with food and their usage requirements. The basic raw materials listed in Table A.1 shall be subject to CAS number. If there is no CAS number, the Chinese name shall prevail.

A.3 If the monomers and other starting materials used in the polymer synthesis in Table A.1 are acids, alcohols or phenolic substances, their sodium salts, potassium salts and calcium salts (including acid salts and double salts) can also be used in the synthesis of corresponding polymers; meanwhile it shall comply with the restrictive requirements of corresponding acid, alcohol or phenolic monomers and other starting materials. For the sodium salts, potassium salts, calcium salts (including acid salts and double salts) of monomers and other starting materials which are listed in Table A.1, their use shall be carried out in accordance with the provisions of this standard.

they shall not be used to produce special food contact materials and products for infants and young children Hydrogen terminated dimethyl (siloxanes and polysiloxanes) Use appropriate amount according to production needs propanediol Use appropriate amount according to production needs Use appropriate amount according to production needs ND (2-methyl- butadiene: QM) Use appropriate amount according to production needs No. Chinese name CAS No.

Appendix B Allowable basic raw materials and usage requirements for adhesives for indirect

B.1 Table B.1 specifies the list of basic raw materials allowed to be used in adhesives for indirect contact with food and their usage requirements. The basic raw materials listed in Table B.1 shall be subject to CAS number. If there is no CAS number, the Chinese name shall prevail. B.2 Substances, which have a molecular weight greater than 1000 Da formed by polymerization or other means of monomers, other starting materials, base polymers and other basic raw materials listed in Table B.1, are also allowed to be used as the basic raw materials of adhesives for indirect contact with food. They shall comply with the restrictive requirements for basic raw materials, such as corresponding monomers, other starting materials, basic polymers. B.4 If the monomers and other starting materials used in the polymer synthesis in Table B.1 are acids, alcohols or phenolic substances, their sodium salts, potassium salts and calcium salts (including acid salts and double salts) can also be used in the synthesis of corresponding polymers; they shall comply with the restrictive requirements of corresponding acid, alcohol or phenolic monomers and other starting materials. For the sodium salts, potassium salts and calcium salts (including acid salts and double salts), of monomers and other starting materials listed in Table B.1, their use shall be carried out in accordance with the provisions of this standard. (QM) can be used as the limit value diisocyanate Use appropriate amount according to production needs diphenylmethane diisocyanate: It shall not be used in the production of food contact materials and products for infants and young children No . mg/ 6 dm2 [calculated as the sum of BADGE, dihydroxy- diphenylpropane and epichlorohydrin Use appropriate amount according to production needs BADGEꞏH2O and [calculated as the sum of BADGE, BADGEꞏH2O and mg/6 dm2 [calculated as the sum of BADGE ꞏHCl, BADGEꞏ2HCl and BADGEꞏH2OꞏHCl; QM] or 1 [calculated as the sum of BADGEꞏHCl, BADGEꞏ2HCl and BADGEꞏH2OꞏHCl: Polymer of terephthalic Use appropriate ethylene amount according to production (based on oxodiethanol needs terephthalic acid) Polymer of terephthalic acid with 1,4-butanediol acid Use appropriate amount according to production needs (Tetrahydrofura n: SML) terephthalic butanediol) Isocyanates are prone Homopolymer of diphenylmethane diisocyanate Use appropriate amount according to production needs (Diphenylmetha ne diisocyanate: shall not be lower than 110 °C; the aniline point shall not be lower than 107 °C; […]