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Knowledge for Coated aluminum foil

Knowledge for Coated aluminum foil


                          As a professional aluminum foil container products factory,

                          Aikeou Eco-friendly Material Co.,Ltd for many years to research,

                          production and manufacturing of aluminum foil container.

                          We are familiar with the purchase of any kind of aluminum foil,

                          and the identification and acceptance of raw materials.

                          Here to share the following experience for everyone to learn from each other:

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                 First:

                          The coating properties of coated aluminum foil for food containers

                          shall be in accordance with the following points:

                         1. coating layer thickness in 8.0 + / - 1.0 g/m2

                             The outer coating of 4.0 + / - 1.0 g/m2

                         2. adhesion, cross test (row 1 mm lattice spacing) : level 1

                         3. coating flexibility, T T 1 or less

                         4. resistance to solvent (MEK) or 30 times never show

                         5. pencil hardness 1 h or more

                         6. 300 ℃ high temperature resistant performance / 25 seconds coating color no change

                         7. coating smell no odor

                         8. rice test 250 ℃ / 30 min coating without change

                         9. boiled (100 ℃ 100 ℃) / 30 min coating without change

                         10. water boiling test 121 ℃ / 30 min coating without change

                               121 ℃ steam / 30 min coating without change

                         11. to 40 ℃ low temperature freezing test / 30 min coating without change

                         12. for die wear and ordinary aluminum foil


                Second:

                        The appearance quality

                        (1) aluminum foil surface should be clean, smooth, no obvious wave; Are not allowed to have corrosion,

                              holes, cracks, black line (article), oil stain, oil smell and other defects;

                        (2) coating on aluminum foil surface is white (users have special requirements such as contract indicate),

                             the coating shall be smooth, full, clean;

                             Coating adhesion is good, after cooking test coating can not have defects such as peeling,

                             color and bubbles.

                       Flat end face

                        (3) the aluminum foil should be wrapped tight, clean,

                              do not allow a string of moving between layer and layer,

                              and knock against the dirt, etc., to allow a slight burr will not affect the use;

                       Wrong layer is not greater than 1.0 mm, the tower is not greater than 3.0 mm.

                        Broken ends

                        (4) aluminum foil adhesive with high temperature tape firmly and make clear identity;

                              To the tube core or from the outer ring joint length should be greater than 500 meters;

                              And the volume of joint does not exceed 20% of the total volume.

                        Aluminum foil joints shall comply with the provisions of table 7 (customers are not allowed to have a joint)

                        indicated in the contract.

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                         Knowledge for simple foil boxes above, any questions, please do not hesitate to contact with us.