What are the classification and characteristics of paper packaging materials


The structure and material of the packaging not only provide services for the storage, protection and transportation of the product, but also in the retail environment, the color and physical structure of the packaging are the first thing that catches the attention of consumers, followed by the text and other information. For many products, this physical construct is the visual identity of the brand. The physical quality and protective features affect the initial appeal of the product to consumers, so the material and structure of the packaging have become one of the important elements for the attention of the packaging, and also provide a presentation surface for the packaging and decoration design.

Section 1 Paper Material Packaging Paper packaging containers have the advantages of low cost, resource saving, good machining performance, adaptability to high mechanized large-scale production, easy printing, non-toxic and harmless when used, and easy to recycle. Therefore, in the field of commodity circulation, whether it is corrugated boxes for transportation packaging, cartons or paper bags for sales packaging, or composite packaging materials based on cardboard, they all occupy the first place in various packaging materials. Classification and characteristics of a paper We generally call paper with a unit weight of less than 225 g/m2 as paper, and paper with a weight of 225 g/m2 or more as cardboard.

The variety of paper materials used for product packaging is extremely rich, but there are mainly the following types: 1. White board paper White board paper has two types of gray background and white background. The texture is firm and thick, the paper surface is smooth and white, and has good strength, strength, Folding resistance and printing adaptability, suitable for folding boxes, hardware packaging, sanitary ware boxes, etc.

, and can also be used to make waistbands, hang tags, lining boards and backboards of blister packaging. Because of its lower price and the most extensive use, it uses more packaging materials. 2 Coated paper Coated paper is divided into single-sided and double-sided, mainly using high-grade raw materials such as wood and cotton fibers.

Each square meter is about 30-300 grams, and more than 250 grams is called copper plate white card. The surface of the paper is coated with a layer of paint composed of white pigments, adhesives and various auxiliary additives. After super calendering, the surface of the paper is white, with high smoothness, strong adhesion, and strong waterproofness.

White background, suitable for multicolor printing. After printing, the colors are bright, the level changes are rich, and the graphics are clear. Suitable for printing gift boxes and packaging and hang tags for export products.

Thin coated paper with low gram content is suitable for box paper, bottle stickers, can stickers and product samples. 3. There are single-sided and double-sided offset paper, and offset paper contains a small amount of cotton and wood fibers.

The paper surface is white and smooth, but the whiteness, tightness and smoothness are lower than those of coated paper. It is suitable for monochromatic letterpress and offset printing, such as letter paper, envelopes, product instruction manuals and labels. When used for color printing, it will make the printed matter dull.

It can be pasted with yellow cardboard after printing simple graphics or text to make a box, or it can be placed in a small box as a liner. 4 Cardboard Cardboard is divided into white card, color card and glass cardboard. White cardboard paper is firm, white and smooth.

The glass cardboard paper is glossy. The glass-side ivory cardboard has an ivory pattern on the paper. Cardboard is relatively expensive, so it is generally used for packaging of high-end products such as gift boxes, cosmetic boxes, wine boxes, and hang tags.

5 Kraft paper The color of kraft paper gives it rich and colorful connotation, as well as a sense of simplicity and honesty. Therefore, it is often used to express concepts such as environmental protection, handicraft, and tradition. Because of its low price and economical advantages, designers like to use kraft paper to make packaging bags.

6 Art paper This is a kind of art paper with various textures and rich colors on the surface. It is specially processed and therefore expensive. It is generally only used for high-end gift packaging to increase the preciousness of the gift.

Due to the uneven texture of the paper surface, the ink is not solid during printing, so it is not suitable for color offset printing. 7. Recycled paper It is a kind of green environmental protection paper, which is pressed and formed by recycled pulp.

The paper is loose, with good shock absorption performance and low price. It can be used to make egg trays. Recycled paper is a major direction of packaging paper in the future.

8 The thickness of yellow board paper is about 1 to 3 mm, and it has good strength. However, the surface is rough and cannot be printed directly. It is necessary to have coated paper or offset paper that has been printed on the outside in order to obtain a good decorative effect.

Mostly used for diaries, handout clips, surface shells, linings of stationery or making fixed cartons. 9 Corrugated paper Corrugated paper is also known as cardboard for cartons. Single-sided corrugated paper is also called "single-sided" corrugated paper; double-sided or double-sided corrugated paper has a layer of corrugated paper in the center, so it is also called "single-wall" corrugated paper.

Unlined corrugated paper, that is, corrugated paper with only a corrugated core, is often used as a packaging material for fragile products or items, and as a product support component in an internal packaging structure. Single-wall and double-wall corrugated paper is often used to make external packaging. Single-sided corrugated paper with a smaller core corrugation can be used with the core facing out for premium packaging designs for unique texture effects.

The printed board can be glued to corrugated board as the base packaging for heavier products such as household appliances and electronics. Various structural design factors also determine the ease with which the product is used by the end consumer. The four pillars of modern commodity packaging materials—paper, plastic, glass, metal, etc.

, have developed rapidly. Each of the four packaging materials has its own strengths and plays an important role in packaging design.

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