Green tube production

tube is a kind of very common packaging materials, widely used in filling filling in cosmetics, toothpaste, shoe polish, paint, dye and adhesive paste products, its biggest characteristic is that the play would collapse after extrusion, air cannot flow into the hose inside, so it is not easy to happen contents oxidation or pollution problems, and to extend the shelf life of products.

although tube is closely related to our daily life, but many people for its production process is very strange. So, today for everyone to share xin million tube production process, for all tube production of small knowledge! ！

the first step: stamping, finishing, aluminum pipe annealing

tube raw material is 99. 7% aluminium purity aluminium. Aluminium in punch shaping for tubular, after a nap, cut tail pipe and tube, the threaded cutting out the threads. Because after stamping aluminum tube hardness is too high, must be sent to 3500 degrees centigrade high temperature baking in the oven, make its softening, called annealing.

step 2: spray inside the

if the aluminum pipe metal content likely to produce chemical reaction, must be in the aluminum tube wall coating a layer of protective film, its raw material is usually epoxy phenolic resin. Practice according to the content on properties, such as corrosion resistance, and the sensitivity of the metal effect, to decide whether to spray, and whether to need to double within spraying.

the third step: paint and printing

the walls of the tube is often a layer of protective coating of polyester resin, usually white, referred to as a primer, its purpose is to form a layer of protective film on the surface of tube, in the case of slight collision can provide a buffer, to reduce scratches, dents and damage. Coat finish and after cooling tube, only sent to the offset printing presses, text and pattern of the printing, will be good brand logo designed, captions and warnings, printing on aluminum tubes. Special way of printing, bronzing, hot silver, have also been very common.

the fourth step: cover

tube printing is completed, and then to cover. Lid is usually PP or PS plastic, color and diverse styles, but usually in accordance with the properties of the products and the design of the customer to choose, both functional and beautiful sex.

the fifth step: tail glue on

if the product content easy to react with air or water, or worry about content and to improve sealing leakage, suggests tail glue on the wall at the end of the play. On the tail before sealing glue, can improve the sealing, more effective isolation from the air and moisture, make sure that the shelf life of products. The width of the tail glue can be adjusted in accordance with the actual demand, width is more wide, the sealing effect is better.

to this step, tube of atc is done.