NEWS
Since the establishment of the company, the total annual sales have been growing at a growth rate of 20%-45%.
How to solve the poor peel strength of aluminum foil bags?
Release time:
2021-11-08
The high temperature of the aluminum foil bag makes the solvent not completely volatilized after winding and curing (unit time), and the residual solvent is too much. The residual solvent is in the adhesive layer, and the swelling reduces the fastness and adhesion of the adhesive layer. Then, how to solve the poor peeling strength of the aluminum foil bag What about the poor peel strength of aluminum foil bags? Next, let us introduce in detail:
The high temperature of the aluminum foil bag makes the solvent not completely volatilized after winding and curing (unit time), and the residual solvent is too much. The residual solvent is in the adhesive layer, and the swelling reduces the fastness and adhesion of the adhesive layer. Then, how to solve the poor peeling strength of the aluminum foil bag What about the poor peel strength of aluminum foil bags? Next, let us introduce in detail:
1. The PA film should be used immediately after opening the box. If it is not used up, it should be wrapped with aluminum foil, sealed for later use, and cured in an insulating room for 1-2 hours.
2. Before preparation, check whether the purity of the solvent exceeds the standard and is qualified.
3. Try to use a nylon film with a wetting tension of 52 dynes.
4. Increase the concentration of the working fluid, increase the coating layer, confirm the depth of the anilox roller, and ensure that the dry basis content reaches more than 4g.
5. Test the grease of the aluminum foil composite layer to see if there is excess grease, if it is not qualified, stop using it.
6. Since the moisture content of PA film, ethyl ester and air exceeds the standard in the environment of high temperature and high humidity, the compounding speed cannot be fast, but it should be moderate. When compounding on a machine with a long drying channel, pay attention to the appropriate increase in temperature and air volume, and strive for The residual solvent is evaporated and dried as much as possible before winding to increase the temperature and time of extended curing.
Haining Fangsheng Packaging Materials Co., Ltd. products are wear-resistant, flame-retardant, impermeable, have good sealing, can effectively avoid light and moisture, high barrier, high vacuum, compression resistance, good toughness, prolong the shelf life of products, environmental protection It has significant social benefits for the promotion, application and development of high-performance and environmentally friendly packaging materials in my country, and for promoting the upgrading of product structure in related industries.
Related news
Official WeChat account
Contact number
Address:No. 38, Xinmin Road, New Industrial Park, Xieqiao Town, Haining City
Fax:0573-87210882
E-Mail:814765417@qq.com