With the improvement of consumption level, businesses are now paying more and more attention to the outer packaging of products, safety, environmental protection, and design sense. But after seeing so many packaging materials, do you know which ones are the most commonly used?
1、 Paper packaging materials
Throughout the development process of packaging design, paper packaging materials have been widely used as a common packaging material in production and daily life. The paper material has low cost, is suitable for large-scale mechanized production, and has good formability and foldability, suitable for exquisite printing, and has advantages such as recyclability, economic and environmental protection.
1. Kraft paper
Has high tensile strength, tear resistance, fracture toughness, and dynamic strength. The texture is tough and affordable, with good bending and water resistance. Most of them are roll paper, and there are also flat paper. It can be divided into single light, double light, striped, and plain, with colors of white and yellow brown. It is mainly used for packaging paper, envelopes, shopping bags, paper bags, cement bags, and also for food packaging paper.
2. Copperplate paper
Copperplate paper, also known as printing coated paper. It is mainly refined from advanced raw materials such as wood and cotton fibers. Surface coating and polishing treatment are used to increase smoothness and gloss, with two types available: single-sided and double-sided. The paper surface is further divided into glossy and textured surfaces. The surface of the paper is smooth, with high whiteness and excellent ink absorption and inking performance. It can reflect all colors in the spectrum and achieve the best effect, and has low elasticity.
Not only that, it is also divided into single copper (coated with gloss on one side), double copper, matte copper and other types (matte copperplate paper is matte paper, which is more expensive than copperplate paper). The commonly used weights are 80g, 105g, 115g, 128g, 157g, 180g, 200g, 250g, etc. Suitable for color printing, mainly used for offset and gravure fine screen printing, such as illustrations in high-end brochures, calendars, books and magazines. After printing, the colors are bright and the layers are varied.
3. Whiteboard paper
Whiteboard paper is a type of cardboard with a smooth white front and a mostly gray back. This type of cardboard is mainly used for single-sided color printing to make cardboard boxes for packaging.
The texture is hard and thick, with good standing strength, surface strength, folding resistance, and printing adaptability, suitable for making packaging boxes, lining boards, handmade products, etc.
4. Corrugated paper
Corrugated paper has advantages such as lightweight and sturdy, strong load-bearing and pressure resistance, shock resistance, moisture resistance, and low cost. Single sided corrugated cardboard is generally used as a protective layer for product packaging or to make lightweight grids and pads to protect products from vibration or impact during storage and transportation; Three or five layer corrugated cardboard is used to make sales packaging for goods; Seven or eleven layer corrugated cardboard is mainly used to produce packaging boxes for mechanical and electrical products, furniture, motorcycles, large household appliances, etc. Corrugated paper can be divided into seven types according to its corrugated shape: A pit, B pit, C pit, D pit, E pit, F pit, and G pit. A pit, B pit, and C pit are generally used for outer packaging, while D pit and E pit are generally used for small and medium-sized packaging.
5. Gold and silver cardboard
In order to highlight the grade of printed packaging products, more and more customers choose to use gold and silver cards for printing. Based on years of printing experience, some issues that need to be paid attention to when using gold and silver cards in printing are summarized as follows:
Gold and silver cards are a type of special paper, unlike ordinary paper, they are divided into two types: shiny gold cards and matte gold cards, shiny silver cards and matte silver cards. It is based on single copper paper or gray board paper with a layer of gold and silver foil film medium. This material is not easy to absorb ink during printing, so a quick drying ink is used for printing.
2、 Plastic packaging materials
The packaging materials used in various goods are usually disposable. When the goods are circulated from the production unit to consumers or opened for use, the packaging materials fulfill their mission and are recycled or disposed of as waste materials.
Therefore, for packaging materials, firstly, they are required to have good performance and be able to adapt to the needs of protecting and promoting goods; Secondly, it is required that its cost be as low as possible. In today's plastics, so-called general-purpose plastics such as polyethylene and polypropylene have the common characteristics of excellent performance, large production volume, and low price, making them the preferred materials for plastic packaging materials.
Plastic has good waterproof, moisture-proof, oil resistant, and insulating properties, and is lightweight, colorable, and easy to produce. It can shape various shapes and adapt to printing. Its raw material source is abundant, cost is low, and performance is excellent. It is one of the most important packaging materials in modern sales packaging.
The common components of packaging plastics include polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), and polyethylene terephthalate (PET).
3、 Metal packaging materials
Metals are widely used in industrial product packaging, transportation packaging, and sales packaging. It has excellent mechanical and barrier properties, good comprehensive protection performance, beautiful appearance, good processing performance, abundant resources, and good waste disposal ability. Beautiful appearance, with a special metallic luster, easy to print and decorate. It is widely used in food packaging, pharmaceutical packaging, daily necessities packaging, instrument and meter packaging, industrial product packaging, military packaging, and other aspects. The largest quantity is used for food packaging.
1. Steel packaging
Compared with other metal packaging materials, steel has a richer source, cheaper price, lower energy consumption and cost, and good plasticity and ductility. Its usage ranks first among metal packaging materials.
2. Aluminum packaging
Aluminum material is lightweight, has excellent processing performance, good ductility and corrosion resistance, is not easy to rust, has beautiful and long-lasting brightness, and is easy to print, process, and recycle. Aluminum is mainly used for sales packaging, with the most common being cans. There are mainly pure aluminum plates, alloy aluminum plates, aluminum foils, and aluminum plated films. It has good corrosion resistance and is superior to stainless steel in some situations, such as aluminum packaging for aquatic products, which will not cause the adverse phenomenon of metal sulfide turning black due to the decomposition of sulfides in proteins.
4、 Glass and ceramic packaging materials
Glass has high transparency, impermeability, and corrosion resistance, is non-toxic and odorless, has stable chemical properties, and low production costs. It can be made into transparent and semi transparent containers of various shapes and colors. Ceramics have excellent chemical and thermal stability, can withstand the erosion of various chemicals, and can withstand high temperatures. Rapid changes in temperature and cold will not affect ceramics, making them ideal packaging containers for food and chemicals. Glass and ceramics belong to silicate materials, and glass and ceramic packaging refers to packaging containers made of ordinary or special glass and ceramics, such as glass bottles, glass jars, ceramic bottles and jars, jars, pots, and other containers.
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