What are the main categories of packaging materials? What are the packaging materials?

Packaging materials refer to the materials used to manufacture packaging containers, packaging and decoration, packaging and printing, packaging and transportation to meet the requirements of product packaging, which includes metal, plastic, glass, ceramics, paper, bamboo, wild mushrooms, natural fibers, chemical fibers, composite materials and other main packaging materials, and includes coatings, adhesives, strapping belts, decoration, printing materials and other auxiliary materials Classification of packaging materials: packing tape, packaging tape, plastic packing tape, plastic packaging tape, stretch film, PE stretch film, PE stretch film and other packaging materials. Performance 1, a certain mechanical properties packaging materials should be able to effectively protect the product Therefore, it should have a certain strength, toughness and elasticity to adapt to the influence of static and dynamic factors such as pressure, shock and vibration 2, barrier performance According to the different requirements of product packaging, packaging materials should have a certain blocking effect on moisture, water vapor, gas, light, aroma, odor, heat, etc. 3, good safety performance The toxicity of the packaging material itself should be small, so as not to pollute the product and affect human health; Packaging materials should be non-corrosive, and have insect-proof, moth-proof, rodent-proof, inhibiting microorganisms and other properties to protect product safety 4. Appropriate processing performance Packaging materials should be suitable for processing, easy to make various packaging containers should be easy to mechanize and automate packaging operations, so as to adapt to large-scale industrial production should be suitable for printing and easy to print packaging signs 5. Good economic performance Packaging materials should be extensive, convenient and low-cost, and packaging materials and packaging containers should be easy to handle and not pollute the environment. so as not to cause public nuisance.

Packaging material classification: box, bag, bottle, box, blister packaging, container, crate, foam material, packaging label, packaging tube, metal packaging.

The general products include various composite packaging materials such as aluminized woven cloth composite film, aluminum foil film, transparent vacuum film, etc., as well as a variety of large three-dimensional bags, anti-static shielding bags, aluminum foil bags, nylon vacuum bags and other new packaging.

Packaging materials include the following.

(1) Paper: There are too many types of paper, such as kraft paper, parchment paper, oil-proof paper, etc. are the main materials used as paper-type packaging, the cost of this kind of packaging is low, and it is a degradable material, so it is relatively common in actual life.

2) Metal: technical packaging is generally used in some places with relatively high requirements for packaging, and the commonly used metal packaging materials are aluminum and aluminum alloy materials, because the preparation cost of aluminum is very low, the weight is also very light, and it is not easy to rust, so it has a good application in various daily life and industrial occasions.

3) Plastics: The use of plastic packaging is very wide, and some containers containing chemical products are basically made of plastic, including plastic pallet collars, which are very common in logistics and transportation, which are also very popular. In addition to industrial applications, many of the food, cleaning products, etc. in our daily life are packaged in plastic.

4) Wood: In warehouse management, there are many packaging materials made of wood, and some wooden boxes and pallets are very practical for storing all kinds of agricultural products and industrial products.

5) Composite materials: The current material composite technology is relatively advanced, and the advanced material technology makes many composite materials are used in the packaging and transportation industry. For example, steel-plastic composites, composite plastics and metals, etc., are of great significance for improving the stability of all aspects of transportation operations.

In addition to the commonly used packaging materials listed above, there are actually many materials that can also be used as packaging materials, such as glass materials, fiber fabric materials and so on.

Different types of packaging materials can be used on occasions that are relatively fixed, and some places have specific needs for specific packaging materials. It can be said that it is the development of material technology that allows us to use such a variety of packaging materials.

The commonly used packaging materials are as follows:

1. Paper 1 Whiteboard paper 2 Coated paper: There are two types: single-sided and double-sided. The raw materials of coated paper are refined from high-grade raw materials such as wood and cotton fibers.

3 Offset paper 4 Cardboard paper 5 Kraft paper 6 Art paper 7 Recycled paper 8 Cellophane 9 Yellow paper 10 Aluminum foil 11 Corrugated paper.

2. Plastic packaging materials.

There are three main plastic window packaging molding methods:

Total Ding 1 Extrusion 2 Injection 3 Blow Molding.

3. Metal packaging materials The main materials of metal packaging are tinplate, stainless steel, aluminum and aluminum foil.

4. Glass packaging materials.

Glass can be divided into the following three forms according to its composition: 1 sodium glass 2 lead glass 3 boron silicon glass glass container molding can be divided into three types according to the production method: manual blowing, mechanical blowing and extrusion molding.

5. Ceramics Ceramic products are traditional packaging containers. Commonly used are clay jars, clay vases and porcelain jars.

6. Natural materials.