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Preparation method for BOPP (biaxially-oriented polypropylene) film with high surface tension

A manufacturing method and high-surface technology, applied in chemical instruments and methods, lamination devices, lamination auxiliary operations, etc., can solve the problems of overload, damage to equipment, easy to burn out circuit boards, etc., to reduce power consumption and save energy , to avoid the effect of burning the circuit board

Inactive Publication Date: 2011-06-01
ZHANJIANG PACKAGING MATERIAL ENTERPRISES
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  • Application Information

AI Technical Summary

Problems solved by technology

If you want to increase the processing power to obtain higher surface tension, it may cause voltage and current overload and damage the equipment. Our company has encountered this situation many times in actual production.
When using our existing equipment (supplier: German Brucker; production capacity: 7000t / a; put into operation in 1998) to manufacture BOPP film, when the output current (I / Out) is close to 4-5A, it is very easy to burn out the circuit board (Siemens Made), the price of each piece is close to 20,000 yuan

Method used

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  • Preparation method for BOPP (biaxially-oriented polypropylene) film with high surface tension
  • Preparation method for BOPP (biaxially-oriented polypropylene) film with high surface tension

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Embodiment Construction

[0013] In order to solve the above-mentioned technical problems, the technical scheme of the present invention is: 1) improve the film temperature before processing, be beneficial to obtain equal surface tension under less processing power; 2) reduce the gap between electrode and film, also The above effects can be achieved; 3) increasing the ozone concentration in the treatment area also has the same effect. After the above multiple effects are superimposed, a significant improvement will be achieved. Finally, conventional processing power can be used to produce BOPP films with high surface tension, and the shelf life of products can be extended. At the same time, it also relieves the restriction of burning out the circuit board due to excessive power.

[0014] Such as figure 1 As shown, the BOPP film needs to pass through the chrome roller before treatment. The temperature of the chrome roller can be adjusted freely, and then it reaches the treatment area. At this position,...

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Abstract

The invention relates to a preparation method for BOPP (biaxially-oriented polypropylene) film with high surface tension, wherein the method comprises following steps: intensifying the process effect by regulating the film temperature, the interval between the electrode and the film, and regulating the ozone concentration; finally, with the normal process power, the BOPP film with 2-4 surface tension units can be manufactured. The manufacturing method overcomes the technical problem that the circuit board can be burnt caused by too great power of the existing device, thereby prolonging the quality guarantee period of the BOPP film for 2-3 months.

Description

technical field [0001] The invention relates to a method for manufacturing a high surface tension BOPP film. Background technique [0002] When manufacturing BOPP film for gluing and printing, the surface tension of the finished product should not be lower than 38dyn. Considering that the surface tension will attenuate with the prolongation of storage time, how to improve the surface tension of BOPP film, that is, prolong the shelf life, has become a common problem that plagues the BOPP industry. [0003] At present, the domestic standard BOPP film production line is equipped with a corona (surface tension) treatment device in the traction process, which is generally composed of a preheating roller, a corona treatment roller (rubber material), a pressure roller, an electrode, a corona generator (high voltage ) and ozone pumping equipment (including exhaust fan, air duct and damper) and other components. [0004] When using the above-mentioned device to manufacture BOPP fil...

Claims

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Application Information

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IPC IPC(8): B32B37/06B32B37/10B32B38/00
Inventor 周先进杨建武王胜
Owner ZHANJIANG PACKAGING MATERIAL ENTERPRISES
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