The hottest multifunctional equipment and material

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Multifunctional equipment and materials lead the film market

film is the most widely used form in the packaging industry. Because of the variety of materials that can be used, it can be made into general film, shrink film, stretch film, single-layer or multi-layer... Therefore, the development of film in the world continues to grow. In recent years, China's packaging industry has developed rapidly, and the demand for film is also increasing. How suppliers provide equipment and materials suitable for domestic use will be a future research topic

at present, both materials, processes and markets require more new technologies. Idle Keji, manager of the film production line Department of Mitsubishi Heavy Industries (Shanghai) Co., Ltd., said that all film manufacturers hope to bring more new products to the market. He believes that general purpose films will grow at a steady rate, but those high value-added films will be the focus of future development, and shrink label films (PET and PS) for PET bottles are one of them. Since the PET bottle Market in China is growing by more than 30% every year, and the shape design of PET bottles is becoming more and more complex to attract consumers, shrink film is the best choice to achieve close label

Mitsubishi's latest cpp/clldpe film production line, with a width of 4.8 meters

PVC materials are mainly used in China's shrink label film market. However, with the requirements of environmental protection and the establishment of regulations, the amount of PVC may be gradually reduced, which provides development space for pet and PS shrink labels

in terms of material formulation, SML pointed out that raw material suppliers have provided some opportunities for processors in recent years. This is that the smooth layer and bonding layer use raw materials with the same brand as the core layer, but a small proportion of concentrated additives (generally 10% - 30% of the base layer) are added to the bonding layer. Similarly, a certain proportion of concentrated additives (up to 50% of the base course) are added to the smooth layer. At this time, the same large material station can be used to store and optimize the main raw materials, while the additives are directly stored in the original small packaging bags. Therefore, manufacturers can reduce the diversity of raw materials and get better prices and business conditions by virtue of their large-scale raw material orders

biaxially stretched film has many advantages and is popular in the market. Among them, the consumption of BOPP is the largest. At present, the global demand for BOPP film has reached 3.6 million tons, and we believe that the growth rate of 5% - 7% will still be maintained in the next 10 years. In the past few years, China has invested heavily in BOPP production lines, resulting in oversupply. He believes that the price of BOPP film will remain low for a period of time after 2005. However, driven by the 2008 Olympic Games, the demand for BOPP film will rise by more than 15%. By 2010, the demand is expected to reach 2million tons. At the same time, special films such as BOPET and BOPA will also increase production in the coming year, so the price will be reduced, which may replace some BOPP applications to a certain extent

traditional films are processed by blowing or extrusion, but the use of cast film (CPP) has increased in recent years. Idle Keji pointed out that 28% of the sealing films in BOPP and BOPET are made of CPP. Due to the cost, most sealing films and general-purpose films are made by blowing process. However, he also saw that as more overseas manufacturers invest in China's food industry, more high-quality films may be needed, and the use of casting technology will greatly expand at that time

in a few years, blown film will still dominate the market, but suppliers must add more value to the film in order to maintain market share. Mitsubishi cooperates with Shikoku kakoh, a Japanese blown film manufacturer, to jointly produce high-functional multi-layer (more than 7 layers) food packaging films and medical films. Mitsubishi provides high barrier multi-layer blown film equipment

windm ller & hlscher (w&h) believes that the ratio of global film blowing and casting devices is maintained in the range of 10:1, or even 15:1. If the annual output is calculated, the ratio is between 7:1. With 3-layer coextrusion film as the mainstream configuration, and equipped with thickness control and quantitative feeding system, the investment of layer film line is also gradually increasing

the company believes that China's demand for high-quality films is increasing year by year, which is related to the rapid growth of automatic filling and packaging machinery in China, such as milk packaging films and forming filling sealing films. In order to ensure the smooth operation of these automatic packaging machines, improve the output and reduce the scrap rate, it is necessary to be equipped with bubble cooling and reverse extraction devices. In addition, barrier films are increasingly used in 5, 7 and 9-layer cast films and blown film production lines, especially in food and pharmaceutical packaging. At present, infusion bags are hot in China; High tech films with high definition, low gel, good tolerance and scratch free (such as LCD screens) are also the future development direction

for the development trend of thin film, in addition to equipment technology and film functions, SML believes that reducing costs is also something that film manufacturers must face up to in the future. An important factor in reducing costs is to reduce product thickness. From 1975 to 2003, the average thickness of the stretched winding film has been reduced from 30 ü m to 20 ü m, while the stretching rate has increased from 50% to 300%. This is due to the development of new materials, such as metallocene materials, which provide higher tensile strength and elongation

the market demand for stretch wrapping film is increasing year by year. At the recent International Conference on stretch wrap film held in Germany, most participants believed that the current annual growth rate of the market demand was 5%-7%, while the demand of the European market in 2004 was 1million tons, of which the manual stretch film accounted for 40%, the medium stretch film accounted for 48%, and the high stretch film accounted for 12%. Its thickness is generally between 12 ü m and 50 ü M

gas control film

the newly developed vibatan packaging formula can avoid a variety of damage caused by the normal decomposition of organic matter, absorb gas molecules produced in the maturation process of organic matter, and ensure the effect of "odor control"

potential uses include:

large fresh-keeping packaging for long-distance delivery (plastic bags, liners, tray covers, etc.)

intermediate storage

supermarket chains

household fresh-keeping bags, including refrigerated food and non refrigerated food (fruits, vegetables, meat, fish, bread products, etc.)

garbage bag, with odor control effect

vivatan PE fresh-keeping 02884 materials are used in the production of LDPE and HDPE films as packaging materials for the preservation of fresh fruits, vegetables, grains, flowers, bread and other items. The PE film added with 02884 material has the characteristics of fresh-keeping, extending the storage period, eliminating peculiar smell and so on. The formula is an active absorption material with LDPE as the carrier

this material can absorb ethylene gas (the culprit of Post Harvest Ripening), ethanol, ethyl acetate, ammonia and hydrogen sulfide, so it can delay the deterioration period of fresh products. The best addition of 02884 material in PE film is 10%

this vibatan formula has the characteristics of non-toxic and free of heavy metals, and conforms to the recommendations of the German Federal Department of Health (bgvv) No. III (polyethylene) and No. LII (plastic consumer product filling material) and the regulations of the U.S. drug and Food Administration (FDA)

moreover, the material can be fully put into production without any modification. It can be used in single-layer films and multi-layer films, and the physical properties of the films will not change. (Note: the transparency may be appropriately weakened to form milky white). Films and other packaging materials containing 02884 can be recycled like general polyethylene products

stretch winding film production line

sml delivered a stretch winding film production line for German orbita film company in October last year. The company urgently needs a multi-purpose production line that can often change the width of the film in a very short time in order to provide the market with a variety of special stretch winding films with different specifications from 250 mm to 700 mm wide

sml adopts die head packaging system to reduce film necking, ensure stable production and facilitate the operation and treatment of experimenters

this set of equipment is composed of 5 extruders, which can produce 2500 mm wide 5-layer stretch winding film 2000 kg per hour. According to the width of the production line, the maximum extrusion capacity is 4500 kg/h, and the annual output can reach 36000 tons. The production line adopts die head packaging system to reduce the necking of the film and ensure the stable production of film products at high speed. This system can ensure that the same raw material is always distributed to the edge of the molten film, and ensure that the melt at the edge of the film head is in the same production environment

during production, some air will be entrained into the reeling film with the film surface, which will adversely affect the reeling quality. The higher the speed, the greater the negative impact. Due to the different positions of the bonding layer, the roughness of the inner and outer surfaces of the film will be different, and the air entrainment on the inner and outer surfaces will also be affected. In this regard, SML winder adopts a set of planetary roll system to adjust the winding angle of the film relative to the contact roll, so as to avoid the entry of regulating air and eliminate the negative impact of entrained air on film winding

the film winding diameter of SML production line can reach 450 mm or 800 mm. Then, the film can be rewound to 1.5 inch or 2 inch paper cores by manual stretching and winding. When changing the roll, the new roll is automatically changed through a special basket structure compatible with 3-inch and 6-inch winding shafts, without the assistance of any tape, gluing device or electrostatic device. We can find that there are different structures in the pressure testing machine

mold head and bubble stabilization basket cooperate with each other

w&h showed in the K exhibition at the end of last year that the future production capacity of VaR in China's low-end cathode material market will be more than ex film blowing equipment. The equipment is used to produce high-quality 5-layer polyolefin composite film. Through the blowing die with a nozzle diameter of only 400mm, the production capacity is more than 700kg/small. When it is difficult to ensure the control accuracy by using simple PID control. This is due to the multicool double-layer cooling ring system, which can also achieve the best cooling effect in the high temperature season, thus creating conditions for the equipment to greatly improve the production capacity

its layer blown film die maxicone has a patented conical design. Due to the short melt flow path and small melt volume, it ensures that the residence time of melt flow beam is very short, especially in the case of barrier layer with great difficulty in production. Maxicone blowing die can produce both barrier film and polyolefin composite film with high production capacity

it is very important to ensure film quality and stabilize bubbles during production. The two bubble stabilization baskets of w&h's variant and nominal air cage are characterized by accurate belt traction and small width error. The patented non-contact bubble stabilization basket, nostic air cage, has the advantage of producing films with high viscosity and high sensitivity

film blowing, lamination and extruder together with

reifenh user launched a number of film production equipment in October last year. One of them is filmtec IBC three-layer blown film production line. The line is equipped with newly developed components: three sets of reitorque gearless extruders, saving space and energy; The three-layer film blow molding die has a compact structure and can produce all kinds of complex structure films; The new sizing sleeve is equipped with air conduction nozzle bushing, which is fed by compressed air without fan; The stable steering system is equipped with a steering rod driven by compressed air, which can ensure non-contact and non striped film guidance; Ufa III coiler is suitable for special roll gap coiling of Matt Film and viscous film, and can form the best film roll

The reitorque single screw extruder developed by the company adopts gearless transmission technology

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