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Easily-torn flanged compound film with good transparency and preparation method thereof

A composite film, transparency technology, applied in chemical instruments and methods, synthetic resin layered products, flexible coverings, etc., can solve problems such as poor transparency

Active Publication Date: 2012-11-07
JIANGYIN BAOBO PACKING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing automatic drug subcontractor easy-tear film is imported from abroad, and has the defect of poor transparency

Method used

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  • Easily-torn flanged compound film with good transparency and preparation method thereof
  • Easily-torn flanged compound film with good transparency and preparation method thereof
  • Easily-torn flanged compound film with good transparency and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] a. Cellophane (PT) film layer printing process: at 50-60°C, the PET film is printed to form a cellophane (PT) printing film;

[0035] b. The preparation process of three-layer co-extruded polyethylene (PE) film: mix low-density polyethylene and linear low-density polyethylene in a weight ratio of 1:2, and then place them in the three layers of the three-layer co-extruded film blowing machine. In the barrel, after being extruded by an extruder, it is made into a composite polyethylene film.

[0036] c. Dry compounding: Glue the cellophane (PT) film that has been printed with patterns and texts, and compound it with polyethylene film through a dry compounding machine. The glue used is polyurethane glue, and the operating concentration of the glue is controlled at No. 3 Zahn Cup 16 -17 seconds, the coating amount is 3.5-3.5gsm, and the composite tension is controlled at 35%.

[0037] d. Slitting: According to the different width, length and specifications required by the...

Embodiment 2

[0040] Except c, dry composite: the composite tension is controlled at 40%; e, the hemming tension is controlled at 50%, the rest are the same as in Example 1.

Embodiment 3

[0042] Except c, dry composite: the composite tension is controlled at 40%; e, the hemming tension is controlled at 45%, the rest are the same as in Example 1.

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Abstract

The invention relates to an easily-torn flanged compound film with good transparency and a preparation method of the compound film. The compound film comprises an outer layer and a heat seal layer from top to bottom, wherein the outer layer is a cellophane (PT) film surface layer; the heat seal layer is a polyethylene film formed by co-extruding a composite layer, a core layer and the heat seal layer from top to bottom, and the materials of the composite layer, the core layer and the heat seal layer are formed by mixing low-density polyethylene with linear low-density polyethylene according to a weight ratio of 1 to 2; and the cellophane (PT) film surface layer is compounded with the polyethylene film layer through a polyurethane rubber layer. The prepared flanged compound film is good in transparency and can serve as a packing material for a full-automatic drug packing machine.

Description

technical field [0001] The invention relates to an easy-to-tear film for a fully automatic drug packaging machine and a preparation method thereof, which is mainly used in automatic drug packaging machines in major hospitals at home and abroad, and belongs to the technical field of pharmaceutical packaging composite materials and preparation methods thereof. Background technique [0002] In Europe, America, South Korea, Japan, Taiwan and other hospitals, the easy-to-tear film of the automatic drug subcontractor is mainly used for the dispensing business of the hospital's outpatient pharmacy and inpatient pharmacy, replacing manual work, achieving the purpose of rapid operation and ensuring the safety of patients' medication. The working principle is to transmit the doctor's order information through the hospital HIS (Hospital Information System) system, and automatically pack the solid preparation medicine (tablet or capsule) that the patient needs to take into the same medic...

Claims

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Application Information

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IPC IPC(8): B32B27/10B32B27/32B32B7/12B32B37/12B32B38/00B32B38/14B29C47/06B29C53/04B65D65/40
Inventor 玄泽亮胡敬辞孙永庆章辉
Owner JIANGYIN BAOBO PACKING
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