The packaging process of plastic bags is related to the bag type, bag making method, and packaging equipment used for packaging materials. Different types of plastic bags have different packaging processes, and the automation level of packaging equipment also varies. According to the type of plastic bag, it can be divided into large bag packaging process and small bag packaging process, including express delivery bags.

目前，手工操作和半自动操作因生产效率低， 般只适合下手工作坊、小型工厂包装生产用。全自动操作从取袋到包装件检验等工序均由机械完成，工作效串高，被大型生产企业采用。大塑料袋装袋工艺的主要环节是充填和封口。充填方法与要充填的物料类型及流动性有关，所以在充填时应根据不同物料及流动性选择相应的充填方法。

At present, manual and semi-automatic operations are generally only suitable for packaging production in manual workshops and small factories due to their low production efficiency. The fully automatic operation from bag picking to packaging inspection is completed by machinery, with high work efficiency, and is adopted by large production enterprises. The main process of bagging large plastic bags is filling and sealing. The filling method is related to the type of material to be filled and its fluidity, so the corresponding filling method should be selected based on different materials and fluidity during filling.

大袋装袋工艺。大塑料袋集要充填重型货物， 极为化工原料、粮食调料、水泥化肥等。根据其机械化程度可分为手丁操作.半自动化操作和全自动操作。其主要袋装工艺为：取袋一开袋口一充填一封口。

Large bag packaging process. Large plastic bags need to be filled with heavy goods, such as chemical raw materials, grain seasoning, cement and fertilizers. According to its degree of mechanization, it can be divided into manual operation, semi-automatic operation, and fully automatic operation. The main bagging process is: taking the bag, opening the bag opening, filling, and sealing.

封口是塑料大袋包装的一个左要工序。开口塑料袋用热封法封R5编织袋多用缝合机缝合阀门袋具有自折叠封合闸管，呀用手]—折叠后封合，也可采用光将阀管闭合冉折叠封分。开口袋因承重太重，所以射门时一般不采用热封，多用缝缓机封门，一般是用于授住袋门两角，直接通过继袋机进行缝合。为了增加封口的强度，叮在袋D6n吸板或耐撕裂材料后再缝合。此外，也14在制袋时，在袋n涂敷热熔性站合剂，封n时在热封装置小加热、然后折叠加压封合或在生产线上施肋加压射u。

Sealing is a crucial process in the packaging of large plastic bags. Open plastic bags are sealed using the heat sealing method. R5 woven bags are commonly sewn with a sewing machine. The valve bag has a self folding sealing gate tube, which can be folded and sealed by hand. The valve tube can also be folded and sealed by light. Due to the heavy load on the opening pocket, heat sealing is generally not used when shooting, and a sewing machine is often used to seal the door. It is usually used to hold the two corners of the bag door and sew directly through the bag relay machine. In order to increase the strength of the seal, it should be sewn on the D6n suction plate or tear resistant material of the bag. In addition, during bag making, a hot melt station agent is applied to bag n. When sealing, a small heat is applied to the heat sealing device, and then folded and pressurized for sealing or ribbed and pressurized for injection on the production line.

缝合式封口方法1坚固又经济，适应性强.缝合式封口的线迹呈锥形，抽线开口极为方便。封n速度也比融结太高。但因缝合时有针眼，防湿、防漏方面不如渤结式封口好。

Suture sealing method 1 is sturdy, economical, and highly adaptable. The stitching of the suture is conical, and the opening for thread extraction is extremely convenient. The speed of sealing n is also too high compared to melting. However, due to the presence of needle holes during stitching, moisture and leakage prevention are not as good as the Bojie type seal.

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This article is supported by Jinan thickened express bags for technical support. For more detailed and exciting content, please click on our website //www.haaimobile.com We will wholeheartedly provide you with satisfactory service.