Unlock instant, AI-driven research and patent intelligence for your innovation.

Liquid medicine packaging composite film and dry-type compounding process thereof

A technology of dry lamination and dry lamination machine, which is applied in the field of liquid pharmaceutical packaging lamination film and its dry lamination process. It can solve the problems of affecting the bonding force of the lamination film, incomplete removal of solvent, and increase of solvent residue, etc., to achieve production efficiency. Improve and reduce the effect of solvent surface skinning and increase solvent volatilization speed

Active Publication Date: 2020-11-17
SICHUAN HUILI IND
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is: in the existing dry compounding process, due to incomplete solvent removal or moisture entering during the solvent removal process, it is easy to cause foaming of the composite film, affect the bonding force between the composite films and increase the solvent residue

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Liquid medicine packaging composite film and dry-type compounding process thereof
  • Liquid medicine packaging composite film and dry-type compounding process thereof
  • Liquid medicine packaging composite film and dry-type compounding process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] Adopt technology of the present invention to prepare PET-AL-CPP, technological process is as figure 1 shown, including the following specific steps:

[0070] 1. Printing:

[0071] Turn on the printing machine, place the corona-treated PET base material on the inner layer in the unwinding section of the gravure printing machine, control the unwinding tension to 100N, and then enter the printing section, control the printing machine speed to 130m / min, and control the drying temperature at 60°C, control the pressure of the printing roller to 0.2Mpa, and the pressure of the printing blade to 0.2Mpa, and print on the outer layer of the PET substrate. Before printing, use ethyl acetate to adjust the ink viscosity to 13S. After printing, control the winding tension to 60N for winding .

[0072] 2. Aluminum foil composite:

[0073] Transfer the PET base material printed on the outer layer to the unwinding section of the dry lamination machine, control the unwinding tension a...

Embodiment 2

[0079] Example 2

[0080] Under the condition that both the temperature of the drying tunnel and the composite speed are at the upper limit, that is, the temperature of the first drying tunnel 1 is 72-75°C; the temperature of the second drying tunnel 2 is 78-80°C, and the temperature of the third drying tunnel 3 is 88-90 ℃, when the composite speed is also at the upper limit, that is, the composite speed of PET and AL is adjusted to 150m / min, and the composite speed of PET-AL and CPP is adjusted to 200m / min, the performance of the composite film is improved.

Embodiment 3

[0082] Compared with Example 2, the third gear 7 is removed, so that the power drive of the flow aid guide roller 11 to the flow aid 4 is released, that is, the flow aid stops working, and a PET-AL-CPP composite film is obtained.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a liquid medicine packaging composite film and a dry-type compounding process thereof, and solves the problems that in an existing dry-type composite process, due to incompletesolvent removal or moisture entering in the solvent removal process, composite films are prone to blistering, the binding force between the composite films is affected, and solvent residues are increased. The process comprises the following steps: (1) starting a dry compounding machine and an induced draft fan, enabling a guide roller to move to drive a flow aid in a drying tunnel to operate, andpreheating the drying tunnel to reach a preset temperature; (2) gluing an outer-layer film; (3) after gluing is finished, enabling the outer-layer film to enter the drying tunnel for solvent volatilization; (4) compounding the outer-layer film and a barrier-layer film to obtain an outer-layer barrier-film intermediate product; (5) gluing a heat seal layer film; (6) after the gluing is finished, feeding the heat seal layer film into the drying tunnel for solvent volatilization; and (7) compounding the outer-layer barrier-layer film intermediate product with the heat seal layer film to obtain the liquid medicine packaging composite film. The process has the advantages of quick solvent volatilization, good removal of moisture in the drying tunnel and the like.

Description

technical field [0001] The invention relates to the technical field of liquid medicine packaging composite film, in particular to a liquid medicine packaging composite film and a dry composite process thereof. Background technique [0002] Liquid medicines have higher requirements on barrier properties, so the main packaging currently used is still plastic tubes made of thicker glass bottles, plastic bottles or composite hard sheets with better barrier properties. [0003] For the composite film, due to the thinner film layer, it must be able to meet the use of liquid medicine packaging, and the requirements for the composite process are higher. [0004] First, for the structure of the composite film, it is required that the outer layer has good weather resistance, the middle layer has good barrier properties, and the inner layer has good heat sealing performance, and the bonding force between the film layers should be strong. [0005] In the compounding process, in order t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B32B15/085B32B15/09B32B15/20B32B27/32B32B27/36B32B37/12B32B38/00B32B7/12
CPCB32B7/12B32B15/085B32B15/09B32B15/20B32B27/32B32B27/36B32B37/1284B32B38/164B32B2038/168B32B2439/80
Inventor 张辉柏金枝张华江黄蛟
Owner SICHUAN HUILI IND