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Common Problems and Solutions of BOPP Pre-coating Film
1. The product has wrinkles (1) The pressure of the rubber roller is too large, causing the film to deform, and the pressure should be reduced appropriately. (2) If the surface of the rubber roller is damaged or uneven, the rubber roller should be replaced. (3) The pressure between the rubber roller and the heating roller is unbalanced and should be properly adjusted. (4) The tension on both sides of the film is inconsistent, or there are wavy edges, the film material should be replaced. 2. The product has snowflake spots (1) The pressure of the rubber roller is not enough, and the pressure should be increased appropriately. (2) The glue on the pre-coated film is not completely melted, which can be solved by the following methods. ① Increase the film temperature appropriately. ② Increase the contact area between the film and the heating roller to make the phase
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04
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11
2023
Industry trends for various substrates of pre-coated films
The main raw materials of the pre-coating film are BOPP film, EVA hot melt adhesive, BOPET film and LDPE hot melt adhesive. The development status of the industry is as follows: 1. BOPP film in BOPP industry is made of polypropylene particles that have been co-extruded and stretched vertically and horizontally, and is used as a substrate in the production of BOPP pre-coating film. The reason why BOPP film is widely used is mainly because the film itself is light, non-toxic, non-polluting, odorless, stable physical properties, good mechanical strength and air tightness, high transparency and gloss, good printing performance, and the production process Simple, time-saving, low pollution, and cheap.
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03
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15
2023
Pre-coating film industry development history and product classification
1. The development process of the pre-coated film industry is combined with the printed film and the film through professional laminating equipment to form a paper-plastic product. This technology is called laminating technology (lamination). After the film printed matter, the surface is more bright, smooth, the pattern is more vivid, wear resistance, folding resistance, tensile resistance, moisture resistance, chemical corrosion resistance and other properties have also been strengthened, and even some apparent defects in the printing process can be made up to a large extent, so not only the service life is prolonged, but also the aesthetics of the product is greatly improved. Since the birth of film technology in the 1950 s, film technology has experienced solvent-based
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02
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02
2023
Pre-coating film-green environmental protection printing new materials
The precoated film was born in the United States in the late 1980 s. Since its rise, its environmental protection, ease of operation, high safety and high efficiency have been recognized by people. China since the 90 s of last century began to introduce pre-coating technology, at that time, pre-coating film mostly by imports, the price is quite expensive, only a few domestic enterprises can process low-grade high temperature pre-coating film, which to a certain extent restricts the application and promotion of pre-coating film in China. At present, in the US film market, the pre-coated film accounts for 97% of the total film, and its market share in Japan and South Korea has reached 70%. In some countries and regions in South America and Africa, the pre-coated film accounts for 97% of the total film.
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01
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22
2023
Insulation film should be how to choose
When choosing a thermal insulation film, the following key factors should be considered to ensure that the product is both practical and economical:
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09
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01
2022
Characteristics and application fields of PET pre-coating film
The full name of polyester is poly-ethylene glycol ester with high mechanical strength, high stiffness, impact resistance, good physical stability, heat resistance, oil resistance, good drug resistance, and corrosion resistance. It is resistant to organic solvents and resins. It has certain chemical resistance when it is not in contact with strong alkali.
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11
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02
2021
Color aluminized film pre-coating application and advantages
Color aluminized pre-coating film is a new type of building material, which can be widely used in the following fields:
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06
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10
2020
Characteristics and Application of Breathable Membrane
The breathable film is a film material with breathable properties, mainly made of polypropylene (PP) and polyester (PET) and other materials. The breathable film has strict requirements in material selection, preparation process and permeability test.
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02
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04
2020