I. Types of shaped bags

1、Three-side-seal shaped bag

Directly on the three side seal bag punching out a variety of patterns to meet the daily chemical, food and other products for the embodiment of intuitive, distinctive personality requirements, such as a variety of fruit slices (mango slices, etc.) bag shape design into the corresponding fruit shape (mango shape, etc.).

2、Self-supporting shaped bag

Through the complementary bottom can make various shaped bags can stand, fully reflect the three-dimensional sense of shaped bags, convenient for supermarkets or shopping malls shelves.

3、Self-standing shaped bag with zipper

Plus zipper is based on the unique shape of the shaped bag so that the bag can be repeatedly opened, generally applicable to some lightweight dry goods, such as candy, dried fruit, chocolate, cookies, jelly, tea and so on.

4, plus mouth stand-up pouches

The role of the mouth is to facilitate the contents of the pouring, plus the mouth of the product can be repeated after the seal, meaning that it can be used many times to open and close. This type of shaped bag is suitable for liquid beverages, shower gel, shampoo, ketchup, cooking oil and other liquids or other liquid products that need to be opened and closed several times.

5、Imitation of mouth-type stand-up pouches

Packaging design did not add another mouth, but the use of shaped bag production features to create a shape similar to the mouth, easy to use. Generally used for liquid packaging, but once opened can no longer be sealed.

Second, the structure of the shaped bag

Shaped bag is similar to ordinary flexible packaging bags, the main structure of PET/PE, PET/CPP, BOPP/PE, BOPP/VMPET/PE, PET/VMPET/PE, PET/Al/NY/PE, PET/NY/PE and other structures, its printing, composite process is similar to that of the ordinary bags.

Third, the production of shaped bags and equipment

Part of the flexible packaging enterprises shaped bag molding, is the use of bag-making machine on the bag, and then online with a punch punch out the shape of the shaped, followed by the necessary trimming method to complete the production of shaped bags, this method wastes a lot of manpower, material resources, production efficiency is not high. Now on the market there is a bag-making machine auxiliary equipment - die-cutting machine, specifically for the production of shaped bags, it is mainly driven by servo motors, with light, electricity, gas, with PLC signals can be very good with the bag-making machine on-line, and to achieve on-line synchronization of the die-cutting, can be a good guarantee of the accuracy of the shaped bag bag-making, off-line without subsequent processing. And it is equipped with online transportation of finished products and the function of automatic roll-up of cut edge, which greatly improves the efficiency of bag making and reduces the production loss of shaped bags. Now there are many domestic manufacturers in the production of such machines, do a more successful South China Sea wrestle into enterprises.

Fourth, the conclusion

Shaped bag breaks the shackles of the traditional four-square bag, the bag's straight edge into a curved edge, thus reflecting the different design styles, with novelty, simplicity, clarity, good identification, highlighting the brand image and so on, but also on behalf of the direction of the trend of plastic flexible packaging. At present, some large domestic flexible packaging manufacturers have been equipped with the appropriate equipment for the production of professional shaped bags. I believe that with the development of bag technology and equipment, with the continuous popularization of die-cutting equipment, the production of shaped bags for flexible packaging enterprises will no longer be a problem, shaped bags will show a blossoming scene of prosperity.