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The working principle of reflective film
Reflective film is an optical material with high reflection characteristics, which can reflect light to a specified direction, thereby reducing the loss of light energy. At present, there are mainly two types of reflective films on the market, one is a metal reflective film, and the other is a dielectric reflective film. The metal reflective film is made of metal materials, such as silver, aluminum, etc., and is generally used in products such as mirrors and reflectors. The dielectric reflective film is made of a dielectric material, and its optical properties are different from those of the metal reflective film.
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06
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08
2023
Introduction of several advantages of pre-coated film pre-coated film
First, because the pre-coated film coating process does not produce any harmful substances, the pre-coated film coating process is more environmentally friendly. Second, the pre-coating film process is simple, and it is not necessary to adjust the glue solution like the coating film process before production. There is no need to control the amount of glue in the production process, and there is no need to dry the adhesive. Just control the temperature, pressure and speed, stop processing is relatively simple, no need to clean the glue coating mechanism. Third, in the production will not produce bubbles, wrinkles, film and other phenomena, therefore, the film product quality is higher. Fourth, the wide range of adaptation of laminating equipment, pre-coated laminating equipment or
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05
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22
2023
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
2023 is the inaugural year for fully implementing the spirit of the 20th National Congress of the Communist Party, and it is also a key year for Zhongmo Group to move towards high-quality development. In the new year, we will continue to maintain a vigorous and upward spirit, face challenges head-on, seek progress while maintaining stability, and strive to achieve new breakthroughs.
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01
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01
2023
In the joint selection by the Taxation Society of Banan District, Chongqing, and the International Tax Research Association of Banan District, Chongqing, Chinafilm Group was awarded the title of 'Member Unit'. This honor not only affirms Chinafilm Group's efforts in tax compliance and international tax research and practice but also recognizes the group's achievements in promoting regional economic development, adhering to tax regulations, and actively participating in international tax cooperation.
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11
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02
2022
On October 12, 2022, Chinafilm received good news: the company officially obtained the title of High-tech Enterprise. This honor not only highly affirms Chinafilm's achievements in the field of technological innovation but also highlights the company's leading position in the industry and the broad potential for future development.
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10
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12
2022
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