1、自封袋太紧了不好打开，我们可以利用摩擦力，两个摩擦力与袋口平行，作用在袋口的两边，方向相反。在摩擦力的作用下，袋口两端会各开一个口，用硬物放到口里一刮，袋子就打开了。当然得注意不要把袋里的东西刮坏了。

1. The self-sealing bag is too tight to open. We can use the friction force. The two friction forces are parallel to the bag mouth and act on both sides of the bag mouth in opposite directions. Under the action of friction, there will be one opening at both ends of the bag mouth. When you put a hard object in the mouth, the bag will open. Of course, be careful not to scratch the contents of the bag.

2、济南自封袋是一种压合可自动封口的包装袋，常见有密实袋，龙骨袋、拉链袋等。

2. Self-sealing bag is a kind of packaging bag that can be pressed and sealed automatically. There are usually compact bags, keel bags, zipper bags, etc.

3、自封袋又称为密实袋、贴骨袋、密封袋、拉链袋，龙骨袋，以聚乙烯和高压线型聚乙烯通过吹膜成型，热切机制袋，制成的一种可以重复封口的塑料袋。常见材质有PE\PO\EVA，多层复合拉链袋等。

3. Self-sealing bags, also known as compact bags, bone-sticking bags, sealing bags, zipper bags, keel bags, are made of polyethylene and high-pressure linear polyethylene by blowing film and hot-cutting machine bags, which can be repeatedly sealed. Common materials include PE  PO  EVA, multi-layer composite zipper bag, etc.

4、自封袋可用于各种小型物品(饰品、小五金、玩具)的内外包装。用食品级的原料生产的自封袋可以存放各种小食品、茶叶，海产品等,防潮、防串味、防水、防虫、防止东西散落；自封袋还可用于服装及其他日常用品的包装，用途广泛。自封袋在吹膜生产时加入防静电母粒即可生产出防静电自封袋，一般应用于电子行业。

4. Self-sealing bags can be used for internal and external packaging of various small items (jewelry, hardware, toys). Self-sealing bags made from food-grade raw materials can store all kinds of small foods, tea, seafood, etc., moisture-proof, anti-smelling, waterproof, insect-proof, and prevent things from scattering; Self-sealing bags can also be used for packaging clothing and other daily necessities, with a wide range of uses. Anti-static self-sealing bag can be produced by adding anti-static masterbatch during film blowing production, which is generally used in the electronic industry.

5、夹链自封袋的生产分两种，一种是直接吹膜成型，自封口以上一般为1，8CM，自封口附近比较厚，自封袋左右两边采用热切封口方式制袋成成品；另外一种为后附夹链条的方法，后一种方法主要用于复合袋的生产。

5. There are two kinds of production of chain clamping self-sealing bags. One is direct film blowing molding. The height above the self-sealing is generally 1,8cm. The thickness near the self-sealing is relatively thick. The left and right sides of the self-sealing bags are made into finished products by hot-cutting sealing; The other is the method of attaching chain to the back, which is mainly used for the production of composite bags.

以上就是自封袋手动封口的小妙招了，希望能够给您好的帮助，更多相关事项的了解就来我们网站http://www.sxsuliao.com进行咨询吧！

These are the tips for manual sealing of self-sealing bags. I hope they can help you. For more information about relevant matters, please visit our website http://www.sxsuliao.com Consult!