Batching process of antibacterial BOPA film production raw materials

Abstract

The invention relates to the technical field of film production, in particular to a batching process of antibacterial BOPA film production raw materials. The batching speed can be effectively improved, and the labor intensity of workers can be reduced. The phenomenon that powdery raw materials are bridged in a pipeline can be effectively avoided. The method comprises the following steps of: (1) screening raw materials; (2) weighing the raw materials; (3) oscillating discharging: adding weighed polyamide 6, calcium carbonate, talcum powder and aliphatic amide wax into a stirring kettle, and knocking and oscillating a discharging pipeline through an oscillating mechanism on one side of the discharging pipeline in the discharging process; (4) mixing the raw materials; (5) heating the raw materials; (6) transferring the raw materials; and (7) drying.

Description

technical field [0001] The invention relates to the technical field of film production, in particular to a batching process of antibacterial BOPA film production raw materials. Background technique [0002] As we all know, BOPA film, as a widely used packaging film, needs to be added with a smooth opening masterbatch in the production process. The existing smooth opening masterbatch for BOPA is to add silica or organic auxiliary materials to PA6 resin in a certain proportion. The agent is extruded and granulated through an extruder, and dried to make a special masterbatch. The special masterbatch is mixed with PA6 resin in a certain proportion, put into the extruder for plasticizing and extruding, and cast through the die until the surface is smooth. The quenching roller is cooled to make an unstretched thick sheet. After the thick sheet is pretreated to eliminate internal stress, the thick sheet is biaxially stretched to make a film, and then the film is measured for thickn...

AI Technical Summary

Problems solved by technology

[0002] As we all know, BOPA film, as a widely used packaging film, needs to be added with a smooth opening masterbatch in the production process. The existing smooth opening masterbatch for BOPA is to add silica or organic auxiliary materials to PA6 resin in a certain proportion. The agent is extruded and granulated through an extruder, and dried to make a special masterbatch. The special masterbatch is mixed with PA6 resin in a certain proportion, put into the extruder for plasticizing and extruding, and cast through the die until the surface is smooth. The quenching roller is cooled to make an unstretched thick sheet. After the thick sheet is pretreated to eliminate internal stress, the thick sheet is biaxially stretched to make a film, and then the film is measured for thickness, The waste edge is cut off, the surface is treated with corona, and finally the BOPA film is obtained by winding; the existing raw material batching process for the production of antibacterial BOPA film requires the staff to manually batch the batching, which takes a long time and is prone to large errors, resulting in Its working efficiency is low; during the feeding process, powdery raw materials are prone to bridging inside the pipeline, resulting in poor fluency in use