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What are the heat shrinkable products?

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heat shrinkable packaging is one of the more advanced packaging methods in the market. The shrinkable film is wrapped outside the product or package. After heating, the shrinkable film is wrapped tightly around the product or package, which can fully show the appearance of the article, improve the marketability of the product, and increase the beauty and sense of value. The food industry is the largest market for heat shrinkable packaging. Heat shrinkable film is widely used in the packaging of all kinds of fast food, lactic acid food, beverage, small food, beer can, all kinds of alcohol, agricultural and sideline products, dry food, local products and so on. It is also increasingly used in non food fields, such as labels and bottle caps, seals, fibers and clothing, aerosol products, sporting goods, electrical products, cosmetics, pharmaceuticals, grease, detergent, stationery, toys, office supplies, kitchen supplies, daily necessities, sundries, building materials, etc

heat shrinkable machine, also known as shrinkable machine, heat shrinkable packaging machine, is one of the more advanced packaging methods in the current market. Shrink film is used to wrap the product or package, and the shrink film is heated to wrap the product or package tightly, so as to fully display the appearance of the article, improve the exhibition and sales performance of the product, and increase the beauty and sense of value. External can reduce the possibility of product being disassembled and stolen; It is suitable for tight packaging and pallet packaging of multiple items. Heat shrinkable machine is widely used in the packaging of glass bottles, styrofoam, cartons, toys, electronics, electrical appliances, stationery, books, records, hardware tools, daily necessities, drugs, cosmetics, beverages, fruits, commemorative labels and other items

there is also a tableware shrinking machine, which is specially used for the thermal shrinkage of tableware. This tableware shrinking machine equipment is especially suitable for the forming and packaging of large quantities of heat shrinkable films in catering tableware, software, printing, biscuits, pharmacy, ceramics, beverage and flooring industries. The utility model belongs to a packing machine

thermal shrinkage () mainly refers to the volume change of thermoplastic materials (ABS, paraffin, etc.) due to their inherent thermal expansion rate, which is the main reason for shrinkage. The amount of shrinkage caused by thermal shrinkage is: Δ L= δ× (L+ Δ/2) ×Δ T

Where, δ Is the linear expansion coefficient of the material, /℃; L is the X /y dimension of the part, mm; Δ The temperature difference is, ℃; Δ It refers to the tolerance of the workpiece (take the larger compensation according to the machining allowance left). Heat shrinkable material, also known as polymer shape memory material, is an intelligent material combined with polymer material and radiation processing technology, that is, it is a functional polymer material made by using the principle of polymer “elastic memory” and taking rubber and plastic material as the base material through mixing, molding, crosslinking, heating, expansion and cold setting. Ordinary polymer materials such as polyethylene and polyvinyl chloride usually have linear structure. After they become a network structure under the radiation of radiation sources such as electron accelerators, these materials will have a unique “memory effect”, and the expanded, cooled and shaped materials can shrink and restore their original shape after heating

the memory performance of heat shrinkable materials can be used to make heat shrinkable pipes, films and profiles. The main characteristic is that heat shrinkable materials are coated on the outer surface of objects, which can play the roles of insulation, moisture-proof, sealing, protection and connection. The radial shrinkage rate of shrinkable materials can reach 50% ~ 80%. With these special and excellent properties, heat shrinkable materials are widely used in the sealing and anti-corrosion of chemical and petroleum pipelines, the joint insulation protection of household appliances, control cables, national defense communications and power cables, as well as the shielding connection and insulation sealing of electrical components. With the rapid expansion of the heat shrinkable material market, a cluster of power accessory manufacturers has been formed around it, and then some of its personnel and technology went south to Guangdong, Zhejiang and so on. Due to the concept, mechanism, surrounding market demand and investment strength, more than 50% of electrical heat shrinkable small pipe enterprises are concentrated in Guangdong, of which Changyuan, wal, Kaiheng and Hongshang are all Chuqiao

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