High obstructing degradable medical multilayer composite packing film and manufacture method thereof
A multi-layer composite and packaging film technology, applied in the field of packaging film manufacturing, can solve the problems of not being an ideal product, being unacceptable in the environment, and difficult to obtain a high-barrier degradable medical packaging film, and achieving the effect of high performance and high barrier properties.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0027] The ten-layer structure composite film, the grades of raw materials used from top to bottom are: PA (C35FN), Tie (50E571), SEBS (G1650), PVA (produced by Binzhou Lvhuan Branch), MPE (KF270), GXPO (Adding 1% modified degradable additives or polyamide resin materials), PP (LE3300). Each is put into the required extruder respectively, and the film thickness percentages are respectively:
[0028] 10% / 5% / 2.5% / 5% / 25% / 25% / 5% / 2.5% / 55 / 15%
[0029] Co-extrusion and compounding through laminated die heads, and finished products are obtained through cooling, pulling, crimping, and slitting.
[0030] The specific process conditions are as follows:
[0031] Extruder screw length-to-diameter ratio: 30:1 Inflation ratio: 1:7
[0032] Extrusion line speed: 8-20m / min Screw structure: gradual change, sudden change
[0033] The temperature of each section of the extruder: 170-235°C
[0034] Die head temperature: 200-230°C
[0035] Photodegradation and biodegradation materials are sel...
Embodiment 2
[0037] It is completed by a stacked twelve-channel die head process, and the specific materials and grades of each layer are:
[0038] PET (Cs9127) is added with 20% of the agent and stirred evenly, SEBS (G1651), PP (Z9450), MPE (X136) is added with modified degradable additives or masterbatch is 0.8% of the base resin, stirred evenly into the extruder hopper. GXPO polyolefin resin plus modified nano inorganic material 5%, other materials are the same as above. The thickness percentage between compartments is:
[0039] 10% / 5% / 2.5% / 5% / 12.5% / 12.5% / 12.5% / 12.5% / 5% / 2.5% / 5% / 15%
[0040] Production technology is the same as example 1.
[0041] The high-barrier degradable medical multi-layer composite packaging film obtained in the present invention is not limited to the above examples, but can also be widely used in the packaging of food, meat, vegetables, melons and fruits with high shelf life and insurance products.
PUM
Property | Measurement | Unit |
---|---|---|
Thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com