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Production process of upright polypropylene infusion soft bag

A soft infusion bag and production process technology, applied in the field of production technology of upright polypropylene infusion soft bag, to achieve the effects of increasing output, increasing light transmittance, and reducing heating temperature

Active Publication Date: 2021-05-11
GUANGXI YUYUAN PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the quality and output of upright polypropylene infusion soft bags still need to be further improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The production process of the upright polypropylene infusion soft bag comprises the following preparation steps:

[0020] 1) Install the bag blank mold on the injection molding machine, put the pharmaceutical grade polypropylene raw material into the barrel of the injection molding machine, start the barrel to heat up to 210°C, the polypropylene raw material is transformed from a solid state to a molten state, and the molten state The plastic is injected into the mold, and the pressure is divided into three sections: the first section has a pressure of 60kPa, and the holding time is 0.5 seconds; the second section has a pressure of 40kPa, and the holding time is 1 second; the third section has a pressure of 58kPa, and the holding time for 1.5 seconds, cooling in cooling water at a temperature of 35°C to become a solid pouch, demoulding to obtain a pouch;

[0021] 2) Put the bag blank into a vacuum chamber with a vacuum degree of 70kPa for 15 seconds, then put the bag bl...

Embodiment 2

[0023] The production process of the upright polypropylene infusion soft bag comprises the following preparation steps:

[0024] 1) Install the bag blank mold on the injection molding machine, put the pharmaceutical grade polypropylene raw material into the barrel of the injection molding machine, start the barrel heating, and heat it to 180°C, the polypropylene raw material is transformed from a solid state to a molten state, and the molten state The plastic is injected into the mold, and the pressure is divided into three sections: the first section has a pressure of 50kPa, and the holding time is 0.5 seconds; the second section has a pressure of 30kPa, and the holding time is 1 second; the third section has a pressure of 55kPa, and the holding time for 2 seconds, cooling in cooling water at a temperature of 40°C to become a solid pouch, demoulding to obtain a pouch;

[0025] 2) Put the bag blank into a vacuum chamber with a vacuum degree of 60kPa for 20 seconds, then put th...

Embodiment 3

[0027] The production process of the upright polypropylene infusion soft bag comprises the following preparation steps:

[0028] 1) Install the bag blank mold on the injection molding machine, put the pharmaceutical grade polypropylene raw material into the barrel of the injection molding machine, start the barrel to heat, and heat it to 240°C, the polypropylene raw material is transformed from a solid state to a molten state, and the molten state The plastic is injected into the mold, and the pressure is maintained in three stages: the pressure of the first stage is 65kPa, and the holding time is 1 second; the pressure of the second stage is 45kPa, and the holding time is 0.5 seconds; the third stage is 60kPa, and the holding time is For 1 second, the bag blank that becomes solid after being cooled in cooling water at a temperature of 35° C. is demolded to obtain the blank bag;

[0029] 2) Put the bag blank into a vacuum chamber with a vacuum degree of 80kPa for 10 seconds, t...

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PUM

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Abstract

The invention belongs to the technical field of medical infusion bags, and specifically relates to a production process of upright polypropylene infusion soft bags, comprising the following preparation steps: 1) installing a bag blank mold on an injection molding machine, putting it into a barrel of the injection molding machine, starting the barrel to heat, Heating, the polypropylene raw material is in a molten state, injecting the molten plastic into the mold, and holding the pressure in three stages, after cooling, it becomes a solid bag blank, demoulding, and the bag blank is obtained; 2) After the bag blank is put into the vacuum chamber, Then put the bag blank into the blow molding machine, heat it, and blow it with compressed air. In the blow mold, it is stretched longitudinally by the stretch rod and blown transversely, and then cooled to obtain the upright polypropylene infusion soft bag. bag. Through the production process of the upright polypropylene infusion soft bag of the present invention, the output of the upright polypropylene infusion soft bag can be increased, the reject rate can be reduced, the light transmittance of the upright polypropylene infusion soft bag can be improved, and the quality of the liquid medicine can be directly observed.

Description

technical field [0001] The invention belongs to the technical field of medical infusion bags, and in particular relates to a production process of upright polypropylene soft infusion bags. Background technique [0002] Infusion products have developed rapidly in my country over the past ten years and are currently one of the main preparations in the pharmaceutical industry. A batch of new varieties of therapeutic infusions such as quinolones, amino acids for children, ribavirin, azithromycin, nimodipine, isosorbide mononitrate and traditional Chinese medicine infusion varieties Puerarin, Danshen and other varieties have been successfully developed and obtained production approval numbers , most of which have been industrialized and put on the market; new types of infusion packaging are constantly emerging, and the output of plastic packaging infusions is currently about 150 million bottles (bags), accounting for 5% of the total production of infusions; the scale and structur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C49/06B29C49/78
CPCB29C49/06B29C49/783B29C2049/023
Inventor 阮传明
Owner GUANGXI YUYUAN PHARMA