Modified casting polypropylene film, easy-to-tear PET-AL-CPP medicine packaging composite film and packaging bag

A polypropylene film, polypropylene technology, used in pharmaceutical packaging, packaging, household packaging, etc., can solve the problems of liquid medicine splashing, poor tear straightness, and difficult to tear, so as to reduce adverse effects and reduce heat sealing temperature. , Improve the effect of heating uniformity

Inactive Publication Date: 2020-10-02
SICHUAN HUILI IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: the CPP in the existing PET-AL-CPP composite film has good toughness, after being made into a flexible packaging bag for packaging liquid medicines, it is not easy to tear, and the tearing linearity is poor, which is easy to cause liquid medicines splash or side leakage

Method used

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  • Modified casting polypropylene film, easy-to-tear PET-AL-CPP medicine packaging composite film and packaging bag
  • Modified casting polypropylene film, easy-to-tear PET-AL-CPP medicine packaging composite film and packaging bag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Preparation of modified cast polypropylene:

[0040] 8 parts of phenolic resin and 90 parts of polypropylene are stirred and mixed and banburyed to obtain a mixture of polypropylene outer layers, and 3 parts of silica-coated alumina nanomaterials are added to 97 parts of polypropylene resin to blend, melt and then make The mixture of the polypropylene inner layer is obtained from the particles, and the particle diameter of the silica-coated alumina nanometer material is 50-150nm.

[0041] The polypropylene outer layer compound and the polypropylene inner layer compound are respectively added to the extruder, melted at 220°C, cast through a T-shaped die, and finally quenched by a cooling roll to form a film. The temperature of the T-die was 210°C.

[0042] The preparation method of the silica-coated alumina nanometer material adopts the chemical vapor deposition technology of the prior art.

[0043] Preparation of PET-AL-CPP Composite Film for Pharmaceutical Packaging ...

Embodiment 2-5

[0051] In order to verify the impact of silica-coated alumina nanomaterials on the performance of CPP, under the same conditions as in Example 1, Examples 2-5 set different mass ratios of the inorganic phase to the amount of polypropylene in the inner layer of polypropylene

Embodiment 2

[0053] No silica-coated alumina nanomaterials.

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Abstract

The invention discloses a modified casting polypropylene film and an easy-to-tear PET-AL-CPP composite film. The problem that the existing PET-AL-CPP composite film has good CPP toughness and is not easy to tear open after being made into a soft packaging bag for packaging liquid drugs, and the tearing linearity is poor, which is easy to cause splashing or side leakage of liquid drugs is solved. The modified casting polypropylene is used in a medicine packaging composite film and comprises a polypropylene inner layer and a polypropylene outer layer, wherein the polypropylene outer layer is a layer bonded with an adhesive, the polypropylene inner layer is a heat sealing layer, phenolic resin is added into the polypropylene outer layer, and a silicon dioxide coated aluminum oxide nano material is added into the polypropylene inner layer. The packaging film has the advantages of being good in comprehensive performance, easy to tear, good in linear easy-to-tear performance and the like.

Description

technical field [0001] The invention relates to the technical field of medicine packaging, in particular to a modified cast polypropylene film and an easy-to-tear PET-AL-CPP medicine packaging composite film. Background technique [0002] At present, the commonly used liquid medicine packaging is rigid packaging, including glass bottles and plastic containers made of composite hard sheets. Glass bottles have the disadvantages of being heavy and fragile, while plastic containers generally need a bottom bracket as a support for plastic containers. During use, it is necessary to unscrew the top of the plastic container, and then squeeze the liquid out for oral administration, which requires many materials and is inconvenient to use. [0003] In order to improve the convenience of liquid packaging, a few companies have proposed strip-shaped composite film bags for liquid packaging. However, since flexible packaging contains liquid medicines, the barrier performance is high, so m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/36B32B27/06B32B15/20B32B15/09B32B15/085B32B27/32B32B27/42B32B27/20B32B7/12B32B33/00C08K9/10C08K3/22C08L23/12A61J1/10A61J1/14
CPCA61J1/10A61J1/1475A61J1/1468B32B7/12B32B15/085B32B15/09B32B15/20B32B27/20B32B27/32B32B27/36B32B27/42B32B33/00B32B2307/31B32B2307/582B32B2439/80C08K3/22C08K9/10C08K2003/2227C08K2201/011C08L23/12
Inventor 张辉李中明肖瑶
Owner SICHUAN HUILI IND
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