Trilateral sealing bag

顾名思义即三边封口，留一个开口装产品，是常见的食品包装袋类型。三边封袋有两个侧面接缝和一个顶部接缝，这种包装袋可以折叠也可以不折叠。有折边时可以直立地站在架子上。

As the name implies, it is the most common type of food packaging bag that three sides are sealed and one opening is reserved for products. The three-side sealing bag has two side seams and one top seam, which can be folded or not. You can stand upright on the shelf when there are folding edges.

自立袋

Self-supporting bag

自立袋型的食品包装袋，就如同名字一样好理解，它可以独立站起来，立在货柜上。因此展现效果更佳，更美观。

The self-supporting food packaging bag is as easy to understand as the name. It can stand up independently and stand on the container. Therefore, the display effect is better and more beautiful.

八边封袋

Octagonal sealing bag

这是一种在自立袋的基础上开发的袋型，由于底部是方形的，所以也可以直立。这种袋式更加立体，有正面、侧面和底部三个平面。相比于自立袋，八边封袋有着更多的印刷空间和产品展示，能更好的吸引消费者的注意力。

This is a bag type developed on the basis of self-supporting bags. Because the bottom is square, it can also be upright. This kind of bag is more three-dimensional, with three planes: front, side and bottom. Compared with self-supporting bags, octagonal sealed bags have more printing space and product display, which can better attract consumers' attention.

吸嘴袋

Suction bag

吸嘴袋有两部分组成，上边是独立的吸嘴，下面是自立袋。这种袋型是包装液体、粉末等产品的，如果汁、饮料、牛奶、自立拉链袋

The suction nozzle bag is composed of two parts. The upper part is an independent suction nozzle, and the lower part is a self-supporting bag. This type of bag is the first choice for packaging liquid, powder and other products, such as juice, beverage, milk, self-supporting zipper bags

自立拉链袋，即包装上方加了可开口的拉链，方便保存和食用，避免了受潮。这种袋型柔韧性好，防潮防水，不易破损。

Self-supporting zipper bag, that is, an openable zipper is added on the top of the package, which is convenient for storage and consumption and avoids moisture. This kind of bag is flexible, moisture-proof and waterproof, and not easy to be damaged.

第6种：背封袋

Type 6: Back sealing bag

背封袋是一种被封住袋子背面边缘的包装袋型。这种袋型没有开口，需要手撕，多用于冲剂小包、糖果、乳制品等。

The back sealing bag is a packaging bag type that is sealed at the back edge of the bag. This kind of bag has no opening and needs to be torn by hand. It is mainly used for small pouches, candy, dairy products, etc.