Aluminum bags and washing bags of plating technology introduction

Wash the aluminum bag with aluminized bag has obvious difference, aluminized bag is generally positive (the whole bag or the whole bag Or on the back, called Yin and Yang bag) With aluminum plating film compound. And wash aluminum bag is different, as long as the bag which part need to be gloss effect of aluminum, which part is transparent visual effects, both can design to produce, but not limited to a certain position, or some rules of design. Here, under the professional manufacturer of flexible packaging packaging is to talk about washing the characteristics of the aluminum bag. Wash the aluminum bag with graphic clarity, high precision, stereo sense is strong, rich layers, colour is gorgeous, smooth surface, high abrasion resistance, etc. Safety from a business perspective, wash the aluminium bag is an anti-counterfeiting packaging form, help to improve the product grade and added value, has the stronger market competitiveness of products. 1, wash aluminum bag introduction to wash bag also called local hollow aluminium bag, is a kind of local hollow out aluminum plating film (with plastic film composite Or call local aluminum plating layer annealing aluminum) Local transparent composite bags. Wash aluminum, is to local aluminum plating layer on the film return or washed away. Plating aluminum film washing process, also known as aluminum process, some local hollow aluminum process, also called call is more, but nature is a meaning, wash away the local aluminum plating film layer, forming beautiful, anti-counterfeiting packaging. At present, wash aluminum bag material structure is generally: PET + aluminized layer CPP, OPP + VMPET + CPP ( PE） Etc. , can be designed according to the different needs of customers. 2, wash the characteristics of the aluminum bag process 1. The traditional alkali washing method traditional alkali washing aluminum, aluminum is a kind of semi automatic equipment, by alkaline liquid, aluminum back cleaning process of the aluminized layer. The main components in alkaline liquid sodium hydroxide solution, commonly known as caustic soda water, the aluminized layer and through the wash aluminum tank for chemical reaction device, the corresponding aluminum plating film of aluminized layer back wash out. Traditional method of wash aluminum washed off the aluminum membrane is very convenient, but will release hydrogen operation, operation in ventilated place, can't close to the flame, has a certain risk. And because of the traditional local aluminum plating process, usually after printing, aluminum plating, at the site of the need to keep aluminized coating a layer of protective agent, and then use alkaline cleaning. Because protectant to overprint and yield is not high. Buck to the edges of the corrosion of aluminum at the same time, the fine line or subtle words hard to complete reservation. 2. After printing aluminum plating method, this method is on the first floor on PET color film has good printing patterns, in need of aluminium coated aluminum plating pattern, then this PET color aluminum plating film by hot-melt glue and another layer of composite processed into color printing film plating aluminum packaging composite layer. It compared with traditional aluminum washing process has the following advantages: simpler processing method, simplified the wash aluminum processing process, eliminating the two membrane, reduce the production cost and product cost. Using hot cold soluble glue composite processing technology, printing film plating aluminum bags durable, won't appear rupture phenomenon. 3. Aluminum method the process water can wash away the aluminized layer of transparent area, can improve the stability of the wash aluminum, prevent pollution. The washing aluminium plant, including at least one tank, set within the tank cleaning roller, and set up in the sink at the top of the guide roll forming aluminum washing cleaning line. When cleaning, packaging film movement in the sink, sink in the water and under the action of cleaning roller will hydrophilic to wash the aluminized layer of ink. The cleaning method to overcome the existing alkali washing aluminium device adopts chemical reaction of instability, time-consuming, shortcomings and so on energy consumption and environmental pollution. And USES the clear water to clean inside the tank, also can make the aluminum washing effect is excellent, uniform and stable product quality, by complete clear; Able to mass production mechanization, very suitable for washing packing bags of aluminum production. 4. Coating aluminum strip annealing method which is a high surface finish, organic solvent resistance strong tinting vacuum aluminum plating paper materials manufacturing methods. Particular way is easy tear on polyester film coating, plating aluminum, and then paste the paper layer, and then getting rid of the polyester film, and then contains pigment coating coated on the easy peel coating products. Easy tear coating is composed of the nitro cellulose and acrylic acid resin, this method is easy to peel coating was improved, improve the ability of resistance to organic solvent, can undertake large area color on the surface. For easy tear layer surface covered with relatively coarse, can show a mirror effect, and can undertake printing of aluminized paper again, can control the color difference in the process of coloring.