Yin-yang membrane dual-mode solvent-free composite production process

Abstract

The invention discloses a yin-yang membrane dual-mode solvent-free composite production process which solves the problems that although solvent-free yin-yang membrane compounding can be realized in the prior art, only one membrane can be coated every time, and the current market requirements cannot be met. The process comprises the following steps that two base materials are put into a yin-yang membrane dual-mode compounding mechanism, and related parameters are set; parts of the two base materials are rolled out of a base material roller, the rolled-out parts are carried onto a material distribution roller in sequence, the rolled-out parts are rolled into a compounding unit through the material distribution roller, and a compound material in a second rack is connected into the compounding unit through a conveying roller and is coated onto the tops of the two base materials; and the compound material is coated and is further heated to a composite mechanism, yin-yang membrane dual-mode solvent-free composite production is conducted, and a composite membrane finished product is collected in the discharging direction of the compounding unit. Yin and yang membrane compounding of two pet membranes is achieved at a time, and the production efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of anion-yang film compounding, and in particular relates to a dual-mode solvent-free compounding production process. Background technique [0002] At present, in the production process of packaging composite films, considering the interlayer bonding force, solvent adhesives are generally used to bond and compound the plastic film and the aluminum foil layer. Due to the use of organic solvents, there is incomplete solvent removal, which is easy to cause UV rays. The risk of excessive absorption is high, and the smell of organic solvents is heavy, harmful to health, and the discharge causes pollution to the environment. Therefore, the emergence of solvent-free adhesives has been promoted. [0003] At present, the most used solvent-free adhesives include one-component polyurethane adhesive and two-component polyurethane adhesive. The one-component polyurethane adhesive is mainly cured through the reaction betw...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems in the prior art that only one type of film can be covered by each feeding, which cannot meet the current market demand and has low efficiency, the present invention provides a dual-mode solvent-free composite production process of an anion-yang film, the purpose of which is to: Realize the combination of anion and yang membranes of two kinds of pet membranes at one time to improve production efficiency

Images