Aluminum foil edge rolling butt joint bonding and pipe orifice edge curling process

Abstract

The invention discloses an aluminum foil edge rolling butt joint bonding and pipe orifice edge curling process. The process comprises the following steps of A, cleaning and passivating aluminum foil and then carrying out roller coating (or film coating) processing, namely carrying out roller coating (or film coating) on the front surface and the back surface of the whole roll of aluminum foil by using food-grade water-based paint, and carrying out color mixing, roller coating (or film coating) and pattern printing according to required colors. According to the process, the aluminum foil is cleaned and passivated firstly, then the front surface and the back surface of the aluminum foil are roller-coated (or film-coated) with the food-grade water-based paint, color mixing, roller coating (orfilm coating) and pattern printing can be conducted according to the required colors, and meanwhile a cut of the stripped aluminum foil continues to be coated with a protective coating, so that any part of the aluminum foil is incapable of making contact with air and beverages, finally, the aluminum foil is cut according to the length requirement of straws, a food-grade coating is additionally coated again after butt joint and bonding, edge curling or plain end or angular cut treatment is conducted, and therefore the aluminum foil straws cover single-layer or multi-layer aluminum foil and materials or thicknesses of different alloy brand numbers.

Description

technical field [0001] The invention relates to the technical field of aluminum foil straws, in particular to a process of butt bonding and nozzle crimping of aluminum foil rolls. Background technique [0002] Aluminum foil is a hot stamping material that is directly rolled into thin sheets with metal aluminum. Its hot stamping effect is similar to that of pure silver foil, so it is also called fake silver foil. Due to the soft texture and good ductility of aluminum, it has a silvery white If the calendered sheet is mounted on offset paper with sodium silicate and other substances to make aluminum foil, it can also be printed. The straw, also known as the drinking straw, is a cylindrical, hollow product. Its main function is to It is used to drink beverages in the cup, and it is also used to suck the bone marrow of some cooked animal long bones. Generally, the diameter is about 0.5cm, but when it is used to suck yogurt, pearl milk tea and other drinks, a thicker straw is use...

AI Technical Summary

Problems solved by technology

[0002] Aluminum foil is a hot stamping material that is directly rolled into thin sheets of metal aluminum. Its hot stamping effect is similar to that of pure silver foil hot stamping, so it is also called fake silver foil. Because of its soft texture and good ductility, it has a silvery white color. If the calendered sheet is mounted on offset paper with sodium silicate and other substances to make aluminum foil, it can also be printed. The straw, also known as drinking straw, is a cylindrical, hollow product. Its main function is It is used to drink the beverage in the cup, and it is also used to suck the bone marrow of the long bones of some cooked animals. Generally, the diameter is about 0.5cm. 1.2cm, it is based on the principle of atmospheric pressure. When using it, suck part of the air against the straw, which will cause the pressure in the tube to decrease. In order to balance the air pressure, the atmospheric pressure will force the liquid in the tube to rise. When the suction is stopped, the liquid in the tube will drop, and the pressure Then return to balance, because most of the existing straws are made of plastic, which is not energy-saving and environmentally friendly, so aluminum foil straws appear on the market, but the existing aluminum foil straws are easy to be in contact with the air during use. , resulting in aluminum oxidation or being ingested into the human body in contact with the mouth, which is not conducive to the aesthetics of the product and people's health. For this reason, we propose a process of aluminum foil rolling butt joint bonding and nozzle curling