Introduction to Kunshan Construction Contract: How to choose suitable paper for packaging products?

This problem is very practical. Choosing the right paper directly affects the protective effect and cost of packaging. The core conclusion is: according to the product characteristics, transportation demand, cost budget and environmental protection requirements, match the key indicators such as paper strength, stiffness and moisture resistance.

1. First, define the core selection dimension.

Product weight: lightweight products can be made of tissue paper, medium weight needs to be thickened or corrugated, and heavy weight needs to be multi-layered corrugated or cardboard.

Transportation environment: Long-distance and stacked transportation requires high compressive paper, and wet environment requires moisture-proof paper.

Appearance requirements: Gifts and high-end products need textured paper (such as coated paper and special paper), and ordinary products can choose natural paper and kraft paper.

Cost and environmental protection: give priority to recyclable paper, and balance the paper grade and purchasing cost when the batch is large.

2. Common paper materials and applicable scenarios

Kraft paper (natural color/bleaching): high strength, tear resistance, suitable for food packaging, express bags, simple gift boxes inner layer, high cost performance.

Coated paper: Smooth surface, good printing effect, suitable for packaging that needs exquisite patterns (such as cosmetic boxes and snack boxes), but the stiffness is average.

Corrugated paper (single-corrugated/double-corrugated/triple-corrugated): It has strong compression resistance and cushioning. Single corrugated paper is suitable for small household appliances and daily necessities, and double-corrugated paper is suitable for heavy objects and long-distance transportation (such as furniture and large-scale equipment packaging).

Cardboard (grey board/white board): high rigidity and good formability, suitable for gift boxes, shoe boxes and electronic product packaging boxes, and can be directly printed or pasted.

Special paper (sulfuric acid paper, rice paper, texture paper): unique texture, suitable for high-end gifts, cultural and creative products packaging, improve product grade.

3. Key selection skills

Give priority to strength: use "gram weight" (g/㎡) to judge the thickness, and pay extra attention to the indicators of "edge crush strength" and "bursting strength" of corrugated paper.

Moisture-proof requirements: choose paper materials that have been covered with film, waxed or treated with moisture-proof to prevent the products from getting wet.

Printing adaptation: it is necessary to select coated paper and white cardboard for color printing, and only need to simply identify kraft paper and natural corrugated paper.

Environmental compliance: food packaging should be made of food-grade certified paper, and the exported products should meet the destination environmental standards (such as FSC certification).