The main advantages of blister packaging are: saving raw and auxiliary materials, light weight, convenient transportation, meeting the requirements of environmentally friendly green packaging; capable of packaging any shaped products, no additional buffering materials are required for packing; the packaged products are transparent and visible, and the appearance is beautiful and convenient. Sales, and suitable for price determinants
The unit price of plastics = product material cost + energy consumption + labor and transportation + profit
Energy consumption: Blister is processed by heat, and the power consumption is relatively large compared with other industries, which is roughly 8% of the material cost of the product. Labor: Blister mainly relies on machine production, less labor, roughly 10% of the cost of product materials. : According to the customer's distance from the factory, profit: the net profit of the plastic factory is generally very low, 12%-20%, according to the payment period, the 30-day checkout is 14%. Material cost: calculation and comparison of product material cost Complex, first understand the following aspects of the data before the calculation: raw material price: according to the use of the product, determine what material and grade of material to use, find the lowest price of the material supplier film thickness: pre-deep how thick the product must be used For film production, the number of layouts should be determined according to the thickness and shape of each part of the molding: According to the size and shape of the product, how many modules can be discharged in one version, which will reduce the quality of the product, and the thinning will increase the material loss. Increasing the cost of material loss rate: the main factors are the shape of the product, the number of products and the size of the fit to the chassis of the plastic machine. The more square shape and the larger the output, the smaller the loss rate.
Calculation formula for material cost
Product material cost = 1 ton of raw material price / 1 ton of raw material finished product
1 ton of raw material finished product quantity = 1 ton of raw material length / blister template length X typesetting quantity X (100% - material loss rate)
1 ton of raw material length = 1 ton / material density / film thickness / width (plastic chassis width)
The material density (PVC is 1.36T/M3), the width of the plastic chassis (0.51-0.71M), the length of the template and the other four parameters are estimated by professional experience.
Blister quotes are difficult to master quickly, and only a few professionals in the plastics factory are eligible to quote.
Characteristics and application range of commonly used plastic materials
First, PVC sheet has high toughness, is not easy to burn, will generate chlorine gas when burning, and has certain impact on the environment. PVC is easy to heat, can be sealed by sealing machine and high frequency sealing, and is the main raw material for producing transparent plastic products. PVC sheet is a widely used and popular material. PVC film can be divided into environmental protection and non-environmental protection. It can be made into transparent, colored, anti-static, gold-plated, flocked and other blister packaging products. Features: high transparency, good surface gloss, less crystal point, small water grain, wide application, strong impact resistance, and easy to shape. Products are widely used in toys, food, electronic products, medicine, electrical appliances, gifts, cosmetics, stationery, etc. Product packaging.
Second, PS hard film has low density, poor toughness, easy to burn, and produces styrene gas (hazardous gas) when burned, so it is generally used to produce various industrial plastic trays. PS sheet is a new type of environmentally friendly packaging material developed in recent years. It is widely used in medicine, food, toys and electronics due to its excellent thermoforming properties, good environmental performance and hygienic performance.
Third, the PET hard sheet has good toughness and is a new type of material developed in recent years. With its excellent toughness, high strength, high transparency, and recyclable recycling, it is easy to burn, does not produce harmful gases when burned, and is an environmentally friendly material that gradually bans PVC, but at a high price. Suitable for high-grade plastic products, blister blister in Europe and the United States generally requires PET materials, but its high thermal melting point, which brings great difficulties to high-frequency packaging, in order to solve this problem, people on the PET surface compound The layer of PVC film, named PETG, but the price is higher. Mainly used in electronics, food, toys, color box window, collar, footwear packaging. The advantages are as follows:
1. With excellent transparency and smoothness, the display effect is good.
2. Excellent surface decoration performance, can be printed without surface treatment, easy to press pattern, easy metal treatment (vacuum metal plating)
3. Has good mechanical strength.
4. Good barrier to oxygen and water vapor.
5. Good chemical resistance and can withstand the erosion of many chemicals.
6. Non-toxic, reliable hygienic performance, can be packaged in food, medicine and medical equipment, and can be sterilized by Y-rays.
7. It has good adaptability to environmental protection and can be recycled economically and conveniently; when it is burned, it does not produce harmful substances. PET sheets are considered to be an ideal packaging material for (ROSH) environmental protection requirements.
Terminology terminology blister: a plastic processing technology, the main principle is to heat the soft sheet of flat plastic after softening, vacuum adsorption on the surface of the mold, cooling and forming, widely used in plastic packaging, lighting, advertising, decoration, etc. industry.
Blister packaging: a general term for the production of plastic products by the blister process and packaging of the products with the corresponding equipment. Blister packaging products mainly include: blister, tray, plastic box, synonym: vacuum cover, blister and so on. Blister packaging equipment mainly includes: plastic molding machine, punching machine, sealing machine, high frequency machine, folding machine. The packaged products formed by the package can be divided into: card, suction card, double bubble shell, half bulb shell, double folded bulb shell, three fold bulb shell and the like.
Bubble shell: The transparent plastic hard sheet is made into a transparent plastic with a specific convex shape by a blister process, and covers the surface of the product to protect and beautify the product. Also known as blister, vacuum cover
Tray: Also called plastic inner support, plastic plastic sheet is made into plastic with specific groove by blister process, and the product is placed in the groove to protect and beautify the product.
Flocking inner support: It is a blister tray with special materials. The surface of the ordinary plastic hard sheet is glued with a layer of velvet material, so that the surface of the tray has a velvety feel, which is used to improve the grade of the package.
Antistatic tray: It is a plastic tray with special material. The surface resistance of this material is less than 10 11 ohms. Mainly used for plastic trays for electronic and IT products.
Blister mold: mold for blister production, the lowest cost is plaster mold, followed by electroplated copper mold, the most expensive is aluminum mold. The mold is drilled with small holes for vacuum adsorption of the heated hard sheets to form a blister product.
Blister molding: It is the blister that we often talk about. The plastic soft sheet that is heated and softened is adsorbed on the surface of the mold by a plastic forming machine. After cooling, the plastic is formed into a concave-convex shape.
Blister cutting: plastic products after plastic forming, through the punching machine, the large sheets are cut into individual products by knife die.
Folding: There is a kind of blister packaging in the blister packaging. The three sides of the blister are folded to the back with a folding machine, so that in the next packaging process, the paper card is inserted into the hem to form a card package. .
Heat sealing: It is a blister packaging process in which a paper card coated with a plastic oil is heat-sealed together with a blister to form a blister card package.
High-frequency sealing: It is a blister packaging process. A high-frequency machine is used to generate high-frequency, and the blister and the blister are bonded together to form a double blister package.
Ultrasonic sealing: It is a blister packaging process. Ultrasonic machine is used to generate ultrasonic waves. The blister and the blister are bonded together to form a double blister package. Unlike the high frequency sealing, the ultrasonic wave can not only seal PVC or PETG. The material can also be sealed with PET material, and there is no electromagnetic damage to the packaged product, which is especially suitable for the packaging of electronic products; the disadvantage is that the ultrasonic sealing can only be separated by dots, and generally only one straight edge is sealed at a time.
main feature
1) Good protection.
2) Transparent and intuitive.
3) Easy to use.
4) Light weight.
In the next 10-15 years, the development trend of China's packaging industry is the first. In 2004, the total output value of China's packaging industry is expected to reach more than 300 billion yuan, with an annual growth rate of about 7%, of which paper packaging products will reach 19 million tons, plastic packaging. The products are expected to reach 5.04 million tons, the metal packaging products are expected to reach 2.88 million tons, the glass packaging products are expected to reach 10.5 million tons, and the packaging machinery will reach 670,000 sets.
Second, from 2006 to 2010, the total output value of the packaging industry is expected to reach 450 billion yuan, maintaining an average annual growth rate of 7%.
Third, from 2011 to 2015, the total output value of the packaging industry can reach 600 billion yuan, an average annual growth rate of 6%. By 2015, paper packaging products can reach 36 million tons, plastic packaging products 9.46 million tons, metal packaging products 4.91 million tons, glass packaging products 15.5 million tons, packaging machinery 1.2 million sets.
Fourth, the packaging industry combined with industrial restructuring will be more reflected in the reduction of product consumption, structural optimization, variety improvement, quality improvement and competitiveness. Products that meet consumer upgrades, technological advances, and sustainability will accelerate growth. China will pay sufficient attention to the import of medium and high-grade packaging raw and auxiliary materials and high-end mechanical equipment "target=_blank> machinery and equipment.
Fifth, by 2020, China's packaging industry will meet the needs of building a well-off society in an all-round way, and build a new Chinese packaging industry with high technology content, good economic returns, low resource consumption, low environmental pollution, and full use of human resources.
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
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