What are the main green packaging materials (below)

Paper pad

Present Situation and Development Prospect of Green Cushioning Packaging Materials

Paper pad is divided into two kinds of thin paper pad and felt paper pad. The tissue paper pad is made up of several sheets of tissue paper, up to 120 sheets of tissue paper lightly folded; the felt paper pad is made of pulp, and the tissue paper pad is mainly used as a cushioning packaging material. The paper pad is soft and neutral, does not damage the surface of the product, has good air permeability, makes harmful gas or moisture easily distributed, has low cost and good processing performance. Its disadvantage is easy to produce dust, poor water resistance. Paper pads are widely used for surface protection of furniture, musical instruments, household appliances and other products.

fiber paperboard

Present Situation and Development Prospect of Green Cushioning Packaging Materials

Fiber cardboard, also known as paper fiber molding material, is a kind of flexible cushioning packaging material made of waste paper pulp, slag pulp, etc., which can be pressed into a single-sided corrugated cardboard plate, and can also be made into soft and elastic thick paper. Some fiber cardboard can also be waterproof treatment, or paste kraft paper surface, paste lining and other surface treatment, so as to get better surface performance. Fiber cardboard is widely used as wrapping materials, liner materials and building materials.

corrugated board

Present Situation and Development Prospect of Green Cushioning Packaging Materials

Corrugated cardboard is made of kraft cardboard (box board paper) as the inside and surface, and corrugated base paper (corrugated paper) as the core in the middle. Different types of corrugated board can be obtained by changing the number of layers of the core and the inner paper, the shape and size of the corrugated board. It has the advantages of good environmental performance, wide range of applicable temperature, low cost, convenient material, mature production process and good processing performance. The disadvantage is poor softness and poor resilience. For the contents, you can directly use three or five layers of corrugated cardboard as the inner packaging cushion.

Present Situation and Development Prospect of Green Cushioning Packaging Materials

At the same time, corrugated cardboard can be made into various shapes of gaskets, washers, partitions and liners, corner guards, edge guards, etc. For example, the new corrugated cardboard and multi-layer paper core composite board successfully developed by the Institute of Resources and Environment of China Agricultural University have been successfully applied to the production of container pallets. This new type of corrugated cardboard has high compressive strength and good cushioning performance. Its packaging cost is 30% lower than that of wooden boxes, and the weight of wood products is reduced by more than 65%. The multi-layer paper core composite board not only has strong bending resistance, but also has the characteristics of flame retardant, water resistance, light weight, heat preservation and sound insulation after special treatment.

These two patented products are based on waste paper as the main raw material, easy to process, low production cost, no pollution in the production process, waste products can also be recycled, with environmental protection and price advantages. Corrugated cardboard is widely used in electronic and fruit products such as cushioning packaging.

Degradable Plastics

With the development of modern industrial civilization and commodity circulation, the problem of waste disposal and recycling of plastic packaging has come, so it has become a top priority for the modern packaging industry to intensify research on biodegradable foamed plastics.

Present Situation and Development Prospect of Green Cushioning Packaging Materials

Degradable plastic refers to a plastic whose chemical structure changes under a specific environment that causes performance loss within a specific time. Degradable plastics not only have the characteristics of traditional plastics, but also can split, degrade and restore in nature through the action of ultraviolet rays in sunlight or microorganisms in soil and water after completing the mission, and finally re-enter the ecology in a non-toxic and harmless form. In the environment, return to nature.

Present Situation and Development Prospect of Green Cushioning Packaging Materials

Degradable plastics are mainly divided into synthetic photodegradable plastics, photodegradable plastics with photosensitizer and biodegradable plastics, as well as multi-functional degradable plastics which are compounded together. According to the environmental conditions of degradable plastics, it is divided into photodegradable plastics, biodegradable plastics (completely biodegradable plastics, partially biodegradable plastics), chemically degradable plastics (oxidative degradable plastics, water degradable plastics) and the above three kinds of degradable plastics.

Present Situation and Development Prospect of Green Cushioning Packaging Materials

The development of degradable plastics is a major trend in the development of science and technology in the world, and is one of the hotspots in the research and development of modern packaging industry materials. At present, the rapid development of degradable plastics in China, according to incomplete statistics, China engaged in degradable plastics has more than one hundred manufacturers, has formed a combination of production, learning and research development system. For example, Nanjing Su Shi Degradation Resin Chemical Co., Ltd. has recently developed a biodegradable foam plastic board, in which the starch content is ≥ 40%, the biodegradable component is ≥ 60%, and the foaming ratio is 30 times. At the same time, it has good environmental adaptability and can be used as a buffer packaging material for precision instruments and meters, high-grade electronic appliances, etc.