What are the classifications of packaging? A comprehensive analysis by material, application, and structure.

Three Dimensions of Packaging Classification

Packaging classification is generally divided along three dimensions: material, application, and structure. Each dimension corresponds to a different selection logic: the material dimension determines physical performance and cost range, the application dimension determines compliance requirements and process focus, and the structural dimension determines the opening method and transportation efficiency. Only the intersection of all three dimensions can fully position a packaging type.

For example, a cosmetic gift box belongs to the paper gift box category from the material dimension, the cosmetic packaging category from the application dimension, and the top-and-bottom box category from the structural dimension. All three classification labels exist simultaneously, but each label provides a different information dimension.

First Dimension: Classification by Material

By material, packaging can be divided into five categories: paper, plastic, metal, glass, and composite materials. Paper packaging is the most common type in the industry, including corrugated cartons, paper boxes, paper bags, and pulp molding. Plastic types include plastic bags, plastic boxes, blister boxes, and shrink film. Metal types mainly consist of tinplate cans and aluminum foil bags. Glass types mainly consist of bottles, jars, and test tubes. Composite materials are combinations of two or more materials, such as aluminum-plastic composite film and paper-plastic composite boxes.

Paper packaging has many subdivided types. Corrugated cartons are classified by flute type into E-flute, B-flute, C-flute, and double-wall corrugated. Paper boxes are classified by face material into white card paper boxes, coated paper boxes, and specialty paper boxes. Paper bags are classified by material into kraft paper bags, white card paper bags, and coated paper bags. Pulp molding is environmentally friendly packaging formed from waste paper pulp, commonly seen in egg trays and industrial cushioning components.

Plastic packaging also has many subdivisions. PE bags are commonly used for food bags and garbage bags. PP boxes are commonly used for food containers and takeaway boxes. PET bottles are commonly used for beverages and cosmetics. PVC shrink film is commonly used for batteries and bottle neck seals for alcoholic beverages. Blister boxes are commonly used for 3C accessories and hardware tools.

Dimension Two: Classification by Application

By application, packaging can be divided into eight major categories: food packaging, cosmetic packaging, pharmaceutical packaging, medical device packaging, electronic product packaging, gift packaging, transport packaging, and industrial packaging. The compliance requirements and process focus vary significantly across these categories.

Food packaging must comply with the GB 4806 series of standards for food contact materials. Cosmetic packaging must comply with the relevant requirements of the Cosmetic Labeling Management Measures. Pharmaceutical packaging must comply with the Drug Administration Law and the relevant GMP regulations. Medical device packaging must comply with ISO 11607-1 and the YY/T 0698 series of standards.

The key concerns for electronic product packaging are anti-static, moisture-proof, and cushioning performance. Common practices include using EPE pearl cotton or air-column bags combined with corrugated outer cartons, with some high-end products additionally incorporating moisture barrier bags and desiccants. The key concerns for gift packaging are visual presentation and unboxing experience, commonly using telescope boxes, drawer boxes, and book-style boxes combined with hot stamping, spot UV, and embossing processes.

Transport packaging and industrial packaging place greater emphasis on load-bearing capacity and cost. GB/T 6543-2008 clearly specifies the classification, dimensions, compressive strength, and moisture content of corrugated cartons used for transport packaging. Export transport packaging should also comply with ISPM 15 requirements for the treatment of wood packaging materials.

Third Dimension: Classification by Structure

By structure, packaging can be divided into eight major categories: folding boxes, gift boxes, slide boxes, hinged boxes, special-shaped boxes, display boxes, plastic packaging, and bags. Each category corresponds to different opening methods and forming processes.

Folding boxes are the most frequently used type in the industry, including airplane boxes, folding color boxes, and split boxes. Airplane boxes are integrally folded and formed, and are most commonly seen in e-commerce scenarios. Folding color boxes have thinner paper thickness and are suitable for cosmetics and small accessories. Split boxes are formed by gluing, with a load-bearing capacity of 10 to 40 kilograms, suitable for medium-sized products.

Gift boxes are a commonly used type for high-end products, including top-and-bottom boxes, book-shaped boxes, and flip-top boxes. Top-and-bottom boxes have separated upper and lower covers, providing a strong sense of opening ceremony. Book-shaped boxes open like a book and are commonly seen in high-end gifts. Flip-top boxes have the cover and body connected by hinges, allowing for convenient opening and closing.

Slide boxes are boxes with drawer structures, including drawer boxes and sleeve boxes. Hinged boxes are opening methods other than flip-top and book-shaped, including flip-top boxes, magnetic boxes, and snap boxes. Special-shaped boxes are non-conventional shapes such as circular and polygonal, including cylindrical boxes and hexagonal boxes. Display boxes are box types used for shelf display, including window boxes and display boxes.

The Cross-Method of Three Dimensions

The cross-method of three dimensions is to first determine the use, then select the structure, and finally choose the material. The use determines the compliance boundaries, the structure determines the opening method and transportation efficiency, and the material determines the physical performance and cost.

For example, for a cosmetics gift box project, the use is cosmetics packaging, which needs to comply with the cosmetics labeling management measures and food contact related standards (partial inner layer). In terms of structure, the heaven-and-earth lid box is selected, which has a strong sense of opening ceremony and is suitable for high-end brands. In terms of material, gray board paper is selected as the skeleton, with coated paper or special paper mounted on the surface, and the craftsmanship features hot stamping plus partial UV.

For example, for an e-commerce express box project, the use is transportation packaging, which needs to comply with the basic standards for corrugated cartons. In terms of structure, the airplane box is selected, which is integrally folded and formed with high transportation efficiency. In terms of material, E-flute or B-flute corrugated cardboard is selected, and the flute type and face paper grammage are chosen according to the product weight.

Common Combination Types

Food gift boxes: Paper + food packaging + lid-and-base box. Commonly uses grey board paper as the framework, with coated paper or specialty paper laminated on the surface, and a food-grade PE bag or aluminum foil bag added to the inner layer. Cosmetics gift boxes: Paper + cosmetics packaging + lid-and-base box or drawer box. Commonly uses grey board paper as the framework, with hot stamping and spot UV finishing. Wine boxes: Paper or metal + wine packaging + lid-and-base box or cylindrical box. High-end wine boxes commonly use rigid paperboard paired with velvet lining.

E-commerce apparel boxes: Paper + shipping packaging + mailer box. E-flute or B-flute corrugated paperboard, offset four-color printing, with glossy film lamination. 3C accessory boxes: Paper + electronic product packaging + mailer box or drawer box. E-flute corrugated paired with EPE pearl cotton inserts, with some including moisture-proof bags. Industrial parts boxes: Paper + industrial packaging + double-corrugated side-opening box. BC double-corrugated can bear up to 80 kilograms.

Common Misconceptions When Classifying by Material

Myth 1: Paper packaging is always environmentally friendly. Paper packaging has a high recycling rate, but once some paper packaging is laminated or combined with other materials, recycling becomes significantly more difficult. Myth 2: Plastic packaging is always not environmentally friendly. The recycling system for plastic packaging is continuously improving, and the recycling rates of PE, PET, and PP are increasing year by year. The environmental restrictions on PVC mainly stem from phthalates rather than the recycling process itself.

Myth 3: Metal and glass packaging are more expensive than paper. This depends on the product size and production volume. For small-batch gift boxes, paper is more economical, while for large-batch canning, metal and glass are more economical. Material selection is a comprehensive trade-off, not a simple comparison of environmental friendliness or cost.

Compliance Boundaries by Application Category

Food packaging has the strictest compliance boundaries. Paper and board in direct contact with food should comply with GB 4806.8-2022, while plastics should comply with GB 4806.7-2023. The number of packaging layers should also conform to GB 23350-2021. Cosmetics packaging requires verification of ingredient labeling, allergen marking, and production information. Pharmaceutical packaging requires verification against the Drug Administration Law and relevant GMP regulations.

Medical device packaging has the most distinctive compliance boundaries. ISO 11607-1 specifies the requirements for materials, design, and testing of packaging for terminally sterilized medical devices, while ISO 11607-2 specifies the requirements for packaging validation. Common sterilization methods include ethylene oxide sterilization, gamma radiation sterilization, and high-temperature steam sterilization, with each method imposing different temperature-resistance requirements on packaging materials.

How to Quickly Identify the Right Packaging Type

To quickly identify the right packaging type, follow three steps. First, define the application to set compliance boundaries and process priorities. Next, choose the structure to determine the box-opening method and transport efficiency. Finally, select the material based on physical performance and cost range. This process applies to most packaging projects.

LeXiang Packaging offers one-stop customization for packaging boxes and labels, providing end-to-end service from design to delivery. Equipped with HP Indigo digital presses and Kodak large-format packaging printers, it supports small-batch, multi-variety customization and sample verification. By cross-referencing material, application, and structure, you can quickly identify the most suitable packaging type.

Key Points Review

• Packaging classification is divided along three dimensions: material, application, and structure.
• The material dimension determines physical performance and cost range.
• The application dimension determines compliance requirements and process focus.
• The structure dimension determines the box-opening method and transport efficiency.
• Only the intersection of all three dimensions can fully define a packaging type.

Clarifying the boundaries of the three dimensions provides clearer direction for packaging selection, budget allocation, and compliance review. It also avoids the common mistake of mixing classification labels from different dimensions during evaluation.