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Simple method for identifying aluminum foil and aluminum plated materials in composite film

A composite film and material technology, which is applied in the direction of analysis materials, material inspection products, measuring devices, etc., can solve the problem of not establishing quality control indicators for the identification of aluminum layer materials in composite films, and achieve the effect of high-efficiency technical support

Pending Publication Date: 2019-01-11
江西省药品检验检测研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, the 2015 edition of the "National Standards for Pharmaceutical Packaging Materials" contains the composite film variety standard and the general rules for pharmaceutical composite films (YBB00132002-2015) and other relevant national standards for food packaging composite films. Quality Control Indicators for Material Identification

Method used

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  • Simple method for identifying aluminum foil and aluminum plated materials in composite film
  • Simple method for identifying aluminum foil and aluminum plated materials in composite film
  • Simple method for identifying aluminum foil and aluminum plated materials in composite film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A simple method for identifying aluminum foil and aluminum-plated materials in composite films, comprising the following steps:

[0034] S1. Cut a 16cm piece from the pure aluminum foil sample and the aluminized polypropylene film sample respectively 2 The sample of pure aluminum foil to be tested and the sample of aluminized polypropylene film to be tested are respectively clamped with metal tweezers at one corner of the sample of pure aluminum foil to be tested and the sample of aluminized polypropylene film to be tested, and placed on the flame of the alcohol lamp Let them burn, and then transfer the pure aluminum foil sample to be tested and the aluminum-coated polypropylene film sample to be tested in a burning state to a porcelain crucible to make them burn completely. After the flame is extinguished and cooled, observe the residue after combustion. form;

[0035] S2. Identification standard: If the residue after burning turns into a mass of gray-black ash or fin...

Embodiment 2

[0038] A simple method for identifying aluminum foil and aluminum-plated materials in composite films, comprising the following steps:

[0039] S1. Cut a piece of 4cm from the polyester / aluminum (aluminum foil) / polyethylene pharmaceutical composite film sample and the biaxially oriented polypropylene / vacuum aluminized cast polypropylene pharmaceutical composite film sample. 2 The polyester / aluminum (aluminum foil) / polyethylene pharmaceutical composite film sample to be tested and the biaxially stretched polypropylene / vacuum aluminized cast polypropylene pharmaceutical composite film sample to be tested were respectively clamped by metal tweezers A corner of the polyester / aluminum (aluminum foil) / polyethylene pharmaceutical composite film sample and the biaxially stretched polypropylene / vacuum aluminized cast polypropylene pharmaceutical composite film sample is placed on the flame of the alcohol lamp to make them Combustion, then the polyester / aluminum (aluminum (aluminum foil...

Embodiment 3

[0043] A simple method for identifying aluminum foil and aluminum-plated materials in composite films, comprising the following steps:

[0044] S1. Samples of polyester / aluminum (aluminum foil) / polypropylene pharmaceutical composite film, polyester / aluminized polyester / polyethylene pharmaceutical composite film and biaxially stretched polypropylene / vacuum aluminized cast polypropylene drug Cut a piece of 25cm from the composite film sample 2 The sample of polyester / aluminum (aluminum foil) / polypropylene pharmaceutical composite film to be tested, the sample of polyester / aluminized polyester / polyethylene pharmaceutical composite film to be tested and the sample of biaxially stretched polypropylene / vacuum aluminized Cast polypropylene pharmaceutical composite film sample, use metal tweezers to clamp the polyester / aluminum (aluminum foil) / polypropylene pharmaceutical composite film sample, the polyester / aluminized polyester / polyethylene pharmaceutical composite film sample to be ...

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Abstract

The invention relates to a method for identifying aluminum foil and aluminum plated materials in composite film and specifically relates to a simple method for identifying the aluminum foil and aluminum plated materials in the composite film. Certain area of composite film sample of an unknown type is moved to alcohol lamp flame through utilization of metal tweezers, the composite film sample is ignited until the composite film sample is burnt completely, a shape of a residue obtained after the composite film sample is burnt is observed visually, the aluminum foil or aluminum plated material in the composite film is identified according to the shape of the residue. According to the method, the aluminum foil and aluminum plated materials are identified through establishment of a flame burning method. According to the method, aluminum foil material composite film and aluminum plated material composite film can be identified accurately, and the method is rapid and direct and is convenientin operation and good in reproducibility. An economic, rapid and effective technical method for identifying aluminum layer contained composite film materials can be provided for a basic inspection institution, a government supervision department and a drug manufacturing enterprise which are in short of professional equipment.

Description

technical field [0001] The invention relates to a method for identifying aluminum foil and aluminized material in a composite film, in particular to a simple method for identifying the aluminum foil and aluminized material in a composite film. Background technique [0002] Composite film refers to a multi-layer structure film synthesized by combining various plastics with paper, metal or other materials through lamination, extrusion lamination, co-extrusion and other techniques and substrates. The substrate is usually made of polyethylene (PE), polypropylene (PP), polyester (PET), biaxially oriented polypropylene (BOPP), biaxially oriented nylon (BOPA), vacuum aluminum-coated cast polypropylene film (aluminized Composed of polypropylene, VMCPP), aluminized polyester (VMPET), etc., it has the characteristics of simple processing, hygiene, economy, and high commercial performance. The composite bag made of composite film is a kind of soft packaging with excellent quality, hygi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N31/12G01N33/20
CPCG01N31/12G01N33/20G01N33/0003
Inventor 朱碧君熊马剑左军凤李婷婷常亮胡星宇
Owner 江西省药品检验检测研究院
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