Drug production composite bags, choose composite extrusion technology

Composite extrusion process in the production of pharmaceutical packaging manufacturers have five advantages, let us see together under the flexible packaging industry according to the production experience of oneself make a summary and analysis. First, use less glue dosage, has a very low or even no residue solvent & ndash; — Composite extrusion technology with extruder is resin bonding will be laminated composites molding composite film manufacturing method, use a small amount of AC agent, has a very low or even no residual solvent, the solvent residues on the control of extrusion compound than dry compound has the absolute advantage, to ensure drug packaging composite membrane solvent residual requirements for pharmaceutical packaging. Second, the extrusion coating composite film thickness of each layer can be adjusted freely and control & ndash; — Extrusion compound extrusion layer thickness can be from 12 mu m - Set arbitrary between 50 microns, through on-line automatic thickness, real-time monitoring of the thickness of the product changes, through the man-machine interface to set range of thickness deviation, detected violation, through the alarm device can timely report to the police, in a timely manner on the man-machine interface to implement on-line automatic adjustment, adjust the die clearance of thickness deviation correction, precise control of thickness deviation, the tested data records for printing, and can guarantee the product quality is stable. Third, choose the thermoplastic resin to produce different functions of different composite materials & ndash; — According to different production of pharmaceutical packaging composite film packaging, different packaging machinery and packaging conditions ( Temperature, speed, etc. ) To select different heat sealing resin. For the heat resistance is poor drug packaging, should choose low temperature heat sealing materials, for heavy packaging should choose high heat sealing strength and high mechanical strength, good impact resistance heat sealing materials. For high speed packing machine, should choose the low temperature heat sealing and heat heat sealing materials of high adhesive strength, for powder and liquid polluting the stronger medicine packing should choose the anti-pollution good heat sealing materials, 4 good health performance & ndash; — Extrusion composite heat sealing layer is in GMP production environment by extruder by high temperature heating molten LDPE film to the substrate, make products better health performance guarantee; And dry composite or solvent-free composite heat sealing layer for blow molding or PE stretch film, PE film, most is not in the production of GMP clean environment, there is a bigger risk on the performance of health. Fifth, composite film gap easy tear and convenience for the consumer & ndash; — LDPE as heat sealing layer composite extrusion laminating composite membrane of orthogonal tear strength than dry composite rectangular small tear strength, gaps is easy to tear in tear of products with good performance. At the same time, the film of the heat sealing layer of the tensile strength of the LDPE film is better than the tensile strength of the composite dry heat sealing layer blowing film, has excellent cutting in the automatic packaging equipment, less blow molding PE composite membrane is cut constantly. This performance, is widely used for easy tear product packaging such as alcohol cotton bag, etc.