A device and method for uniform curing inside and outside of roll film

Abstract

The invention provides a device and method for uniform curing inside and outside of a roll film. The device includes a curing chamber and a roll film. The specific steps of the method include: (1) continuous heating of the curing chamber; (2) hanging and curing roll film; (3) balancing the temperature in the curing chamber; (4) ventilating the curing chamber. An air circulation device is installed in the curing room. Through internal circulation and external circulation, the temperature in the curing room is evened out, and the air with solvent molecules is discharged in time to allow fresh air to enter and avoid secondary pollution to the composite membrane; the external air inlet is set A disc-shaped pipe is installed, and the external air is heated first when it enters to prevent the cold air from entering the curing room to generate water vapor; the composite membrane and the filter paper are arranged at intervals, and the ventilation performance of the filter paper is used to make the temperature inside and outside the roll film consistent, and the degree of ripening inside and outside the roll film is evened out. .

Description

technical field [0001] The invention relates to the technical field of packaging bag processing, in particular to a device and method for uniformly curing the inside and outside of a roll film. Background technique [0002] Packaging bag refers to the bag used to pack various supplies, so that the goods are conveniently transported and stored during the production and circulation process, and are widely used in daily life and industrial production. According to the production process, it is often divided into plastic packaging bags and composite packaging bags. Among them, composite packaging bags combine various materials with different characteristics to improve the air permeability, moisture permeability, oil resistance, water resistance, Chemical resistance, so that it can prevent insects, dust, microorganisms, light, fragrance, odor and other odors, as well as heat resistance, cold resistance, impact resistance, better mechanical strength and processing applicability, a...

AI Technical Summary

Problems solved by technology

[0007] 1. The room temperature in the curing room has a large deviation, and the indoor temperature is not uniform, resulting in uneven curing;

[0008] 2. Poor ventilation in the curing room is not conducive to the discharge of residual solvents in the composite membrane, which may cause secondary pollution to the composite membrane;

[0010] 4. The temperature inside and outside the roll film is not uniform, resulting in inconsistent curing degrees inside and outside the roll film, and uneven strength of the composite film;

[0011] 5. Due to uneven curing temperature and inconsistent curing degree, the existing curing process takes a long time

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