Abstract: In our lives, we can see items packaged in various packaging materials, such as plastic bags, cans, glass jars, cartons, wooden boxes, etc. During the logistics and transportation of goods, the quality of the packaging materials and the tightness of the packaging greatly determine the quality of the items when they are signed for. Packaging materials occupy an important position in the entire packaging industry and are the basis for developing packaging technology, improving packaging quality and reducing packaging costs. What are common packaging materials? The editor below will introduce you to the types of packaging materials, let’s take a look! Paper packaging materials Corrugated paper uses: It can be used as packaging for food or digital products.
Features: low cost, light weight, easy processing, high strength, excellent printing adaptability, and convenient storage and transportation.
Usage Note: Corrugated paper above 80% can be recycled and regenerated, which is relatively environmentally friendly.
Use of boxboard paper (kraft paper, kraft cardboard): Mainly used to make corrugated boxes after being bonded with corrugated paper core, used to package household appliances, daily necessities, knitted fabrics, stationery, Chinese and Western Outer packaging of patent medicines, etc.
Features: Tough texture, high burst resistance, ring crush strength and tearing strength, and high water resistance.
Usage Note: The quality of most imported kraft paper is better than that of domestic kraft paper, especially the quality of American kraft paper is the best.
Use of whiteboard paper: Whiteboard paper (printing type) is mainly used for single-sided color printing and made into cartons for packaging, or used for design and handmade products; whiteboard paper (stationery type) is mainly used For seminars, workshops, conferences, etc.
Features: The front is white and smooth, and the back is mostly gray. It is breathable, hygroscopic, absorbent and compressible.
Usage Note: The moisture content of whiteboard paper is relatively high, generally around 10, and it has a certain degree of stretchability, which will have a certain impact on printing.
Use of white cardboard: Mainly used for printing business cards, invitations, certificates, trademarks, packaging and decoration, etc.
Features: high smoothness, good stiffness, neat appearance and good evenness.
Usage Note: White cardboard is high-value paper, and the normal price is generally USD950--1100/MT.
Use of gold and silver cardboard: Mainly widely used in color printing packaging, suitable for box making, box making, printing and packaging in industries such as cigarettes, alcohol, food, cosmetics, toothpaste boxes, medicine and gift packaging.
Features: The surface of the paper can produce light beams, which has the effect of laser paper.
Usage Note: Most of the gold and silver cardboard used are acquired composite materials with film as the medium.
Use of paper bag paper (flexible paper): Generally used to make packaging bags for cement, pesticides, fertilizers and other industrial products.
Features: Brown color, strong paper, not easy to break, good waterproof performance, and a certain degree of air permeability.
Usage Note: The characteristics can prevent damage when packing or loading and unloading.
Greaseproof paper (translucent paper, waxy paper) uses: widely used for packaging of hamburgers, baked bread, biscuits, and other foods and other oil-containing items.
Features: It has a certain strength and high smoothness, but the air permeability is low. The porosity of the paper is very low and the transparency is high, which can prevent the penetration and absorption of grease.
Usage Note: For one-time use only.
Use of cellophane: widely used in lining paper and decorative packaging paper for commodities.
Features: Moisture-proof, water-tight, slightly breathable, heat-sealable, etc. It has the advantages of being non-static, dust-proof, and having good kink resistance.
Usage Note: It can not deform at high temperatures of 190°C, and can be used for high-temperature sterilization together with food in food packaging; it can also absorb water and be decomposed in garbage, so as not to cause environmental pollution.
Aluminum foil paper is used for moisture-proof and decorative packaging of high-end cigarettes, candies and other foods.
Features: It is soft and easy to deform, like paper, and does not rebound after deformation; it can be qualitative, guaranteed to be shading, will not fall off, is opaque, pollution-free, and is cheap.
Usage Note: Tin foil paper belongs to metal. When metal and acidic substances are mixed together, they will undergo chemical changes and easily produce carcinogens that are harmful to humans.
Plastic packaging material strapping (PVC strapping, PE strapping, pp strapping, pet strapping) uses: in addition to sealing and strapping of corrugated boxes, hot-rolled steel coil strapping, cold-rolled steel In addition to roll bundling, it can also bundle glass, pipes, materials, fruits, etc.
Features: strong tensile strength, small elongation, strong temperature resistance, good flexibility, beautiful appearance and no rust.
Usage Note: The quality of the strapping depends entirely on the purity of the polypropylene. The higher the purity of the polypropylene, the better the pulling force of the strapping.
Tear film uses: widely used in cement bags, flour bags, container bags, clothing, shoes, craft gifts, handbags, toys, agriculture and animal husbandry and other market areas for packaging, Bundling and other operations.
Features: It has strong tensile strength, soft texture, non-toxic, odorless and pollution-free, beautiful appearance and bright colors.
Usage Note: It can be directly used as industrial and agricultural binding rope, and can replace nylon silk, cotton thread, micro-nylon thread, etc.
Uses of stretch film (stretch film, heat shrinkable film): widely used in single items such as chemical raw materials, fertilizers, food, mechanical and electrical products, light textile products, or pallet packaging and other bundled packaging.
Features: Good tensile properties, good transparency, uniform thickness, environmentally friendly and recyclable material, odorless, non-toxic, and can be directly packaged for food.
Usage Note: When packing, be careful to protect the edges from collisions, which may cause edge breakage and quality problems.
Use of sealing tape (bopp tape, packaging tape): suitable for general product packaging, sealing bonding, gift packaging, etc.
Features: Thin thickness, good performance-price ratio, transparent appearance, non-toxic, odorless, safe; easy to use, high efficiency; high anti-buffering strength, good retraction rate, puncture resistance, Good tear resistance.
Usage Note: Do not add water, do not add other substances, and do not mix with other glues.
Plastic film uses: widely used in food, medicine, chemical industry and other fields, among which food packaging accounts for the largest proportion, such as beverage packaging, quick-frozen food packaging, retort food packaging, fast food packaging, etc.
Features: Colorless, transparent, moisture-resistant, airtight, soft, strong, acid, alkali, oil, ester and solvent resistant.
Usage Note: Commonly used plastic films include polyethylene (PE), polyvinyl chloride (PVC), polystyrene (PS), polyester film (PET), polypropylene (PP), nylon, etc. ; Various plastic films have different properties and have different uses as packaging materials.
Uses of hollow boards (hollow grid boards, Wantong boards, corrugated boards, double-wall boards): Mainly used in electronics, packaging, machinery, light industry, postal services, food, medicine, pesticides, home appliances, advertising , decoration, stationery, opto-magnetic technology, bioengineering, medicine and health and other industries.
Features: light weight (hollow structure), non-toxic, non-polluting, waterproof, shockproof, anti-aging, corrosion-resistant, rich in color.
Usage Note: Compared with cardboard structural products, hollow boards have the advantages of moisture resistance and corrosion resistance.
Metal packaging material tin-plated sheet (tinplate) uses: widely used in food packaging, pharmaceutical packaging, daily necessities packaging, instrumentation packaging, industrial product packaging, etc.
Features: Corrosion-resistant, non-toxic, high strength, and good ductility.
Usage Note: It can prevent the color of food from deteriorating due to light, oxygen, and moisture, and it will not become dilute due to the penetration of aroma or change in taste due to environmental odor pollution.
Barrel hoops are widely used in barrel making, canning, lubricants, coatings, chemicals, petroleum, grain and oil, metal packaging and other industries.
Features: Reasonable structure, precise production, beautiful appearance, easy operation, strong and durable, low wear, high mechanical strength, not easy to break, tight sealing, etc.
Usage Note: A wooden barrel with a good barrel hoop has a smooth appearance, a warm and delicate feel, and a tight connection between the barrel hoop and the barrel wall; a poor barrel has a rough appearance and may feel slightly prickly when touched by hand.
Steel strip uses: It is used in household appliances, construction industry, household appliances, automobile industry, industrial industry and other aspects.
Features: It has the advantages of high dimensional accuracy, good surface quality, easy processing, and material saving.
Usage Note: Galvanized steel plates can be protected from corrosion with a micro-dense zinc coating.
Uses of PTP aluminum foil: It is the main packaging form in food, health products, medicines and other fields.
Features: It has oxygen-blocking, light-proof, moisture-proof and other properties, and is easy to puncture.
Usage Note: And because soft aluminum foil is easy to break, the unwinding tension should be small and the speed should be slow during printing and coating.
Aluminum plate uses: used in lighting, architectural appearance, interior decoration, furniture, cabinets, elevators, automobile interior and exterior decoration, household appliances, interior decoration and other fields.
Features: easy to process, good electrical and thermal conductivity, low density, high strength, and good corrosion resistance.
Usage Note: Do not clean the hot aluminum plate surface. Be sure to use neutral detergent when washing.
Use of steel drums: They are widely used in industrial product packaging, transportation packaging and sales packaging.
Features: It has a special metallic luster, excellent mechanical properties, high strength, and has excellent general protection functions.
Usage Note: Steel contains heavy metals such as Pb and Sn to varying degrees. These heavy metal ions can interact with products, especially food.
Use of aerosol can: A disposable metal container used to hold aerosol products.
Features: There are two types of materials: aluminum and tinplate. It has the characteristics of easy use, good sealing, limited shape of contents, and safe use.
Usage Note: Check whether the aerosol can valve is normal. If it is damaged, it cannot be used anymore.
Glass packaging materials Glass bottles are used as main packaging containers in the food, pharmaceutical and chemical industries.
Features: Stable and durable, does not react with liquids; easy to seal, good air tightness; smooth surface, easy for disinfection and sterilization; beautiful appearance, colorful decoration.
Usage Note: It is easy to burst when encountering high or low temperatures; try to pay attention to safety when storing and moving, and handle it with care, as glass is fragile.
Uses of glass jars: commonly used in food packaging, gift packaging, medicinal packaging, chemical utensils.
Features: low price, brittle and fragile.
Usage Note: It is easy to burst when encountering high or low temperatures; try to pay attention to safety when storing and moving, and handle it with care, as glass is fragile.
Use of glass box: can be refrigerated, frozen, microwaved, fresh-keeping, suitable for storing various foods.
Features: Excellent sealing and fresh-keeping performance, hygienic and safe, strong heat and cold resistance.
Usage Note: Before use, check whether the glassware is damaged; broken glassware should be carefully and thoroughly removed, wrapped in paper with thick gloves, and thrown into a special sharps box.
Use of composite flexible packaging materials for flexible packaging: widely used in electronics, food, oil, juice, jam, dairy, beverages, alcohol, tea, cigarettes, medicine, health products, cosmetics, small household appliances, clothing , toys, sporting goods and other industries and product packaging supporting industries.
Features: good flatness, excellent sealing, high temperature resistance, high tensile strength, good transparency and gloss.
Usage Note: It is difficult for flexible packaging to provide bags that are easy to use, open and reseal.
Aluminized film uses: Mainly used for vacuum packaging of flavored foods and agricultural products, as well as packaging of medicines, cosmetics, and cigarettes.
Features: Excellent folding resistance, good toughness, and excellent metallic luster.
Usage Note: Use your fingers to gently scratch the front and back of the film. There will generally be no obvious scratches on the film surface, while the aluminum layer will have obvious scratches due to external friction.
Use of core wire: suitable for bundling various accessories, power cords, etc.
Features: It has good electrical insulation, tensile strength, impact strength, and will not be deformed or damaged.
Usage Note: It has high strength, weather resistance and excellent geometric stability.
Aluminum foil composite film uses: Aluminum foil is used as medicinal packaging base material, high-temperature cooking food packaging, barrier packaging (flavors, spices) and electromagnetic shielding packaging, etc.; aluminized film is used in lightweight, non-cooking Barrier packaging, such as seaweed packaging, puffed food, and biscuit food packaging.
Features: Aluminum foil has good mechanical strength, light weight, no thermal adhesion, metallic luster, good shading, strong light reflection ability, not easy to be corroded, good barrier properties, moisture-proof and waterproof, It has strong air tightness and fragrance retention; the aluminized film has a metallic luster, great gas barrier properties, and low adhesion viscosity. It is easy to transfer the aluminized layer after composite processing.
Usage Note: Aluminum foil is an excellent thermal conductor and light shielding body.
Uses of vacuum aluminized paper: widely used for printing beer, cigarettes, electronic products, cosmetics and other food trademarks and labels.
Features: The surface has strong metallic texture, bright colors, and noble and elegant prints.
Usage Note: Vacuum aluminum-coated paper is a green, environmentally friendly, low-energy-consuming product that can be completely degraded and is a pollution-free product.
Use of composite membrane: Commonly used for anti-seepage treatment of dams and drainage ditches, and anti-pollution treatment of waste dumps.
Features: It has the characteristics of high strength, good elongation performance, large deformation modulus, acid and alkali resistance, corrosion resistance, aging resistance, and good anti-seepage performance.
Usage Note: Because it uses polymer materials and anti-aging agents are added in the production process, it can be used in unconventional temperature environments.
Use of composite paper: widely used in short-term protective packaging of narrow strip shear boards.
Features: Waterproof, moisture-proof, oil-resistant, air-tight and fragrance-proof.
Usage Note: The paper is smooth and soft to prevent scratches on the board surface.
BOPP (biaxially oriented polypropylene film) uses: It is widely used in the packaging of food, candy, cigarettes, tea, juice, milk, textiles, etc., and is known as the "Queen of Packaging".
Features: Lightweight, non-toxic, odorless, moisture-proof, high mechanical strength, good dimensional stability, good printing performance, good transparency, high transparency, good gloss, good barrier properties, impact resistance High strength, low temperature resistance and other advantages.
Usage Note: Film shrinkage is prone to occur during heat sealing.
More packaging materials/auxiliary materials ① Ceramic packaging materials: ceramic bottles, ceramic jars, ceramic altars, ceramic pots.
②Wood packaging materials: packaging made of wood products and artificial wood boards (such as plywood, fiberboard), such as wooden boxes, wooden barrels, wooden boxes, wooden plywood, fiberboard boxes, plywood boxes and wooden Pallets etc.
③Hot stamping materials: hot stamping materials, laser film, anodized aluminum foil, hot stamping film, hot stamping film, hot stamping foil, hot stamping foil, color foil.
④Adhesives and coatings: Adhesives, composite glues, reinforcing agents, starch adhesives, sealants, latex, resins, and self-adhesives.
⑤ Packaging auxiliary materials: bottle cap glove machine, mold, gasket, handle, liner nozzle, sealing cap, packaging film.