The definition of composite membrane
Composite film is a kind of multilayer structure film formed by various plastics and paper, metal or other materials through dry composite, extrusion composite, solvent-free composite and other technologies.
Characteristics and application of composite membrane The composite film has the functions of dustproof, antifouling, blocking gas, keeping fragrance, transparent (or opaque), anti ultraviolet, decoration, printing, cooking and sterilization, anti-static, microwave heating and other functions. It is suitable for mechanical processing or other sealing methods. It can basically meet the requirements of packaging, and any single material can not achieve these functions.
Its characteristics are as follows: 1. The properties of the composite can be adjusted by changing the type of substrate and the amount of lamination, so as to meet the different needs of packaging.
2. It has a strong protective effect on the contents. According to the actual needs of packaging, the composite membrane materials with high moisture resistance, oxygen isolation, fragrance retention, light protection, oil resistance and permeability resistance can be manufactured. 3. Excellent mechanical properties, ideal tensile strength, tear resistance, impact resistance, fracture resistance, wear resistance and puncture resistance. 4. Mechanical packaging has good adaptability and can be used for mass production. The composite packaging material is easy to form, and the sealing is firm. The size is stable. It can resist scratch and perforation. 5. It is easy to use, light in weight, easy to carry, various in specifications, small in transportation volume, low in cost and easy to open. 6. Promote the sales of products, composite materials are easy to print, shape and decorate, which can increase the variety of colors and improve the effect of commodity display. 7. Extensive use of resources, through the selection of various structures, save materials, reduce energy consumption and cost. Generally speaking, the composite membrane has the most outstanding advantages of good comprehensive protection performance and low cost, but some composite membranes also have the disadvantages of being difficult to recover and easy to cause pollution. At present, both international and domestic soft packaging industry friends are also vigorously researching and innovating recyclable, biodegradable and sustainable flexible packaging materials.
How to control the quality of compound process 1. The selection of glue type many flexible packaging enterprises have serious mistakes in choosing the right glue. The specific performance is: which cheap to use which? I will use it in any big factory? Which enterprise uses well, I also use it. The current situation of choosing and using adhesives in the following and blind enterprises is the current situation
A: According to the enterprise's customer product structure to reasonable choice, such as. Some light packaging can choose water-based adhesives
B: The suitable adhesive should be selected according to the equipment capacity of the enterprise. For example, the low-speed laminating machine or the medium speed laminating machine cannot meet the process requirements of water-based adhesive
C: According to the enterprise's product structure characteristics, such as two-layer structure, three-layer structure, the amount of glue is different. After testing, which type of glue can not only meet the product composite requirements, but also save costs. After all, the price of glue with different solid content is different. For example, melon seed bag, not all need to use 75% solid content adhesive to produce
D: The most important thing is to choose the glue which is suitable for the enterprise's product structure. Some cost waste has a lot to do with our choice. 2. Glue proportioning method or take a look at our phenomenon: is your compound workshop still using wooden sticks to stir? Is it still available? Do you use a precise electronic scale to weigh it? Is there any specific system that requires the mixing method, time and mixing direction? If the answer is no, then we can say that your enterprise has had quality problems that make you headache before. If not, then you are lucky. But if you do not arouse vigilance, it is our mistake.
Dongguan Beite packaging materials Co., Ltd. - located in Dongguan City, a world famous manufacturing city, is a subsidiary company of Beite packaging (China) Co., Ltd
With an area of 6000 square meters, it is a flexible packaging enterprise integrating R & D, production and sales. It has a complete set of advanced production equipment in China
We provide customers with high-quality products and first-class service with the support of the humanized management system and a group of experienced technical personnel.
The company produces composite bags, roll film, fruit bags, aluminum foil bags, suction mouth bags, self-supporting bags, zipper bags, anti-static bags, special-shaped bags, etc., which are suitable for food, daily chemicals, and other special-shaped bags
Electronic, toys, medicine, cosmetics, industrial products and other industries of internal and external packaging.
We uphold the integrity of cooperation, good quality, thoughtful service business philosophy, the industry's recognition, products sold all over the world; welcome to call friends from all walks of life
Consulting, visiting our factory for investigation and guidance and business negotiation.